Rate contract for SITC of different types of Air Conditioning system work in different offices and building premises of AMC.(Within the limit of Amount Rs.1.00 Crore)

VOL-I TECHNICAL BID

1 Tender documents available On web site https://tender.nprocure.com

2 Last Date & Time of submitting the filled till Dt.13/08/2026 up to 6.00 p.m only on website

up tender online https://tender.nprocure.com

3 Last Date- Time and Place of submission Up to Dt.14/08/2026 4:00 p.m. only At the Office of

of Volume-I (Technical Bid only) of Tender Officer, Central Record Office, Mezzanine Floor,

Tender in Physical form Block-B, Sardar Patel Bhavan, Danapith, Ahmedabad-

380 001,Gujarat,India.

4 Tender Vol-I (Technical Bid only) Opening Dt. 14/08/2026 at 4:05 p.m. onwards

Date-Time and Place Online Opening:-At the Office of Additional Chief

Engineer (Electrical), Light Department,5th Floor “C”-

Block, Sardar Patel Bhavan, Danapith , Ahmedabad-380

001, Gujarat, India.

Physical Opening :-At the Office of Tender Officer,

Central Record Office, Mezzanine Floor, Block-B, Sardar

Patel Bhavan, Danapith, Ahmedabad-380 001,Gujarat,

India or at the above said office

MUNICIPAL COMMISSIONER

Ahmedabad Municipal Corporation

AHMEDBAD MUNICIPAL CORPORATION

Sardar Patel Bhavan,Danapith

ELECTRICAL DEPARTMENT Ahmedabad - 380

BRIEF TENDER NOTICE FOR WORK,TENDER FEE AND EARNEST MONEY DEPOSIT

S.N. WORK DESCRIPTION TENDER FEE E.M.D.

Rate contract for SITC of different types of Air Rs.2400/-( Non Rs. 1,00,000/-in the

1 Conditioning system work in different offices and Refundable) form of demand draft

building premises of AMC.(Within the limit of or bank guarantee of

banks mentioned as per

Amount Rs.1.00 Crore)

 Interested Only Eligible tenderer may obtain further information and clarification on any

matter relating to the tender documents from the Office of Additional Chief Engineer

(Electrical),5thFloor,”C”-Block,Sardar Patel Bhavan,Danapith,Ahmedabad-380

 Tender Fee-Demand Draft only

Tender must be accompanied by the Tender Fee through Demand Draft only in favourof

“Municipal Commissioner,AMC”payable at Ahmedabad from banks mentioned in

Annexure-I only with their tender documents.

Without tender Fee tender will be strictly rejected.

Earnest Money Deposit (E.M.D.) – Demand Draft or bank guarantee only

Tender must be accompanied by the E.M.D. through demand draft or bank guarantee in

favour of “Municipal Commissioner, AMC” payable at Ahmedabadof banks mentioned in

Annexure-I only with their tender documents.

Without E.M.D. tender will be strictly rejected

Signature of the Tenderer Addl. Chief Engineer

Name : (Electrical)

Company’s seal AMC

LIST OF BANKS FOR TENDER FEE,EARNEST MONEY DEPOSIT(E.

M.D.) , SECURITY DEPOSIT AND PERFORMANCE GUARANTEE

 Tender Fee must be in form of Demand Draft only of following banks only.

 Earnest Money Deposit / Security Deposit /Performance guarantee shall be in form

of Demand Draft or Bank Guarantee only of following banks only.

A. Guarantees issued by following banks will be accepted as SD/EMD on

permanent basis.

 All nationalized Banks

B. Guarantees issued by following banks will be accepted as SD/EMD

forthe period up to March- 31, 2026. The validity cut-off date in the GR

is with respect to the date of issue of Bank Guarantee irrespective of

the date of termination of Bank Guarantee.

1. Commercial Banks:-

2. AU Small Finance Bank

3. Bandhan Bank

4. Barclays Bank

5. City Union Bank

7. DBS Bank India Limited

9. Equitas Small Finance Bank

10. ESAF Small Finance Bank

11. Federal Bank

16. IDFC First Bank

17. Jammu and Kashmir Bank

18. Jana Small Finance Bank

19. Karnataka Bank

20. Karur Vysya Bank

21. Kotak Mahindra Bank

22. South Indian Bank

23. Standard Chartered Bank

24. Tamilnadu Mercantile Bank

25. Utkarsh Small Finance Bank

2. Co-operative and Rural Banks Of Gujarat:-

1. The Ahmedabad Mercantile Co-operativeBank Limited

2. Nutan nagrik Sahakari Bank Limited

3. Rajkot Nagarik Sahakari Bank Limited

4. Saraswat Co-operative Bank

5. SBPP Co-operative Bank

6. SVC Co-operative Bank

7. The Cosmos co-opretive Bank

8. The Gujarat State Co-Operative Bank

9. The Mehsana Urban Co-operative Bank Limited

10. The Surat District Co-operative Bank

11. The Surat Peoples Co-operative Bank

12. The Kalupur Commerical Co-operative Bank Limited

13. The Panchmahal District Co-operative Bank

14. The Baroda District Co-operative Bank

15. Baroda Gujarat Gramin Bank

16. Saurashtra Gramin Bank

 Bank guarantee of above mentioned banks accepted only for Ahmedabad City branch

Addl.Chief Engineer

Signature of the Tenderer AMC

VOLUME - I : TECHNICAL BID

MUNICIPAL COMMISSIONER,

Ahmedabad Municipal Corporation,

Sardar Patel Bhavan,

Danapith,Ahmedabad.

Work:- Rate contract for SITC of different types of Air Conditioning system work in different

offices and building premises of AMC.(Within the limit of Amount Rs.1.00 Crore)

1. Hereby Rate Contract of SITC of different types of Air Conditioning system work in different

offices and building premises of AMC.(Two-Bid System) invited on behalf of Municipal

Commissioner, for Rate Contract for S.I.T.C. work of Ductable , Cassette &Tower Air-conditioners.

2. Tender along with conditions of contract shall be available from the

websitehttps://tender.nprocure.comTenderer shall have to submit D.D. of banks mentioned in

Annexure-Ionly in favour of “Municipal Commissioner, Ahmedabad” Payable at Ahmedabad of

amount Rs.2400/-as tender fee along with the tender submission. Tender received without tender

fee shall be considered as Non-Responsive and shall stand rejected outright.

3 Earnest Money Deposit (E.M.D.)shall be in the form of Demand Draftor bank guarantee infavour of

Municipal Commissioner, Ahmedabad” payable at Ahmedabad from banks mentioned in Anexure-I

only of Rs. 1,00,000/-with their tender documents.

4 SUBMISSION OF TENDER

 Tenders shall be submitted together with the other documents that form the tender. In the event of

a Contract, the tender and the documents attached there to shall be considered as forming part of

the Contract Documents.

VOLUME-I TECHNICAL BID

 Separate envelop for Tender fee (D.D. only)

 Separate envelop for E.M.D. (D.D./B.G. only)

 Volume-I ,General condition, Common condition etc

 All supporting documents mentioned in Eligibility Criteria

 Addendum, if any

 All the pages of tender documents has to be stamped and signed by the tenderer

VOLUME-II FINANCIAL BID

 Schedule of Quantities & Rates/B.O.Q.(online only)

 Two sets of technical bid only (One Original + One Xerox copy) of tender documents duly completed

in all respects shall be submitted so as to reach at the above stated address on or before the date

and time mentioned in tender notice.

 E.M.D and Tender Fee in the form of Demand Draft / Bank guarantee should be sealed in separate

envelope and the same shall be enclosed along with Tender document Volume-I (put original copy in

original document envelop and one Xerox copy in Xerox copy document envelop).

 Both Original and Xerox copy tender document envelope should be sealed in one large envelope. On

this envelope, the Name and address of Tenderer, Name of Work, and date of opening of the tender

shall be written invariably. No condition will be accepted along with the given bid. Price bid fulfilled

by the contractor online only.

 The tender shall be considered non-responsive if not sealed. Tenderer shall not be allowed to fill in or

seal their tenders at the AMC Office. Tenderer are requested to present the tenders well in time

before stipulated date and time of receipt; so as to avoid rush at the closing hours.

5 Erasures and other changes shall be noted over by the initials of the person signing the tender.

6 The successful tenderer shall have to pay Security Deposit worth 5% amount of the Ordered Value in

Indian Rupees as per Form “A” enclosed with tender documents or as per acceptable form to AMC

within 15 days from receiving date of Purchase Order in the form of demand draft or Bank

Guarantee from banks mentioned in Annexure-I only ,the condition of which strictly followed by

successful bidder, failure of which tender shall be liable to reject.

Validity of Security deposit (S.D.) will be refund after completion of warranty of Last given sub-order

in the tender. EMD will release upon submission of S.D.

The E M D of the contractor, whose tender is accepted, shall be forfeited in full in case He/She

does not remit the initial security deposit within the stipulated period and does not complete

the contract with AMC within 15 days from receiving date of Purchase Order.

Additional Performance Security:-

In the case of any Bid where quoted rate appear unrealistic, such Bid will be considered as

unbalanced and; in case the Bidder is unable to provide satisfactory explanation, such a Bid is liable

to be disqualified and rejected. However, the Bidder may be asked; at the discretion of the Authority

only to submit the Additional Performance Security calculated as under:

(i) If the bid price offered by the Successful Bidder is lower than 15% but up-to 20% of the Estimated

Cost of work, then the Additional Performance Security shall be calculated @20% of the difference in

the [(a) Estimated Cost of work (as mentioned in BOQ)-10% of the Estimated Cost of work] and [ (b)

the Bid Price offered by the Selected Bidder]

(ii) If the bid price offered by the Successful Bidder is lower than 20% of the Estimated Cost of work,

then the Additional Performance Security shall be calculated @30% of the difference in the [(a)

Estimated Cost of work (as mentioned in RFP)-10% of the Estimated Cost of work] and [(b) the Bid

Price offered by the selected Bidder]

The Additional Performance Security shall not be treated as part of Performance Security

7 Unsuccessful Tenderer’s(i.e. L2&L3) Earnest Money will be refund after submission of security deposit

of lowest tenderer(i.e. L1). No interest will be paid on Earnest Money deposit.

8 The Conditional Tender will not be accepted and shall be rejected outright, unless, the nature of

condition(s) put up by the tenderer is acceptable to AMC. Any suggestions/alteration from the

tender must be mentioned in the main forwarding letter.

10 Tender shall also be liable to be rejected if –

i) Any of the page or pages in the tender is / are removed or replaced or altered.

ii) All corrections, additions or pasted slips are not initialed by the tenderer.

iii) Any erasure is made in the tender.

iv) The tenderer or in the case of a firm, each partner or the person holding the power of

attorney thereof does not sign or the signature(s) is (are) not attested by the witness,

wherever it is required.

v) Tender fee and Earnest Money for required amount is not paid with the tender.

vi) Tender submitted without submission of document required as per qualification criteria,

signing relevant pages of the tender and amendments, if any.

11 Acceptance of the tenders shall rest with the competent authority of AMC, who does not bind

himself to accept the lowest tender.

12 The Technical Bid containing Vol-I (technical bids only) from the tenderer received, shall be

openedin the presence of the tenderer’s representativesat the time and date mentioned in

tender notice and the technical tenders shall be scrutinized by AMC for satisfying various

eligibility criteria prescribed for the tenderer for this work.

13 After this, the Financial Bids of only technically qualified tenderer who fulfils all eligibility

criteria as mentioned in tender will be opened. The actual date of opening of Vol-II (Financial

Bid) of tenders shall be communicated to technically qualifying tenderer only later after

scrutiny of tender documents.

14 Municipal Commissioner, AMC reserves the right

 To change, alter or to waive any technical or commercial terms, conditions and

 To reject all the tenders or the lowest or any other tender in part or full without

assigning any reason whatsoever

 For making changes / relaxation in eligibility criteria at any time

15 It must be clearly and distinctly understood that the conditions of contract and specifications

shall be rigidly enforced and no relaxation on the grounds of customs prevailing shall be

16 The Price quoted for work must be of Site / Store delivery of Corporation GST EXTRA as per Govt.

rules. Prices must be firm for this tender. Any additional Govt. tax changes will not be payable

to the Contractor for this tender.

17 Tender documents must be submitted as per original tender documents that published

in web site https://tender.nprocure.com. No Changes / Addition in any text, documents in

original tender documents are allowed, failing which tender is strictly rejected.

18 Errors and Discrepancies in Tenders

Should the Schedule of quantities and Rates filled in Vol-II (Financial Bid) be found to contain

any errors, or discrepancies, the owner / engineer shall not permit any tenderer to change the

substance or price of his tender after the tender opening.

In the event of any calculation error found in the BOQ in Rate, Quantity and Total amount then

In the event of any calculation error found in the BOQ in Rate, Quantity and Total amount then

lowest amount will be considered among following calculation (For Qty mentioned in Vol-II –

Scheduled Quantity only)

 Amount of Multiplication of Filled Rate and Quantity of particular item.

 Amount Written in cell of total calculated amount of particular item.

However AMC decision is final in this case and contractor has no excuse for the same Also the

tenderer shall not be permitted to correct or withdraw material deviations or reservations

once tenders have been opened.

19 The tender for the work shall remain open for a period of 120 Calender days from the date of

opening of Price bid of tender and the tenderer shall not be allowed to withdraw or modify the

offer on his own during this period.

Any modifications or additions in terms and conditions of his tender will also not be accepted

by AMC.In such caseMunicipal Commissioner shall without prejudice to any right or remedy, be

at liberty to forfeit in full the said earnest money absolutely.

20 If the tenderer wishes to offer any discount in the event of this entire work being awarded to

him, he shall state so in the tender. Tender documents are not transferable.

21 Any Falsei nformation given in the Tender will invite invalidation of any Contract awarded on the

basis of such false information at the discretion of the employer.

22 If first lowest tenderer not able to work properly then AMC reserves the right to give same work

to second lowest tenderer as first lowest sanction rate. if second lowest is not agreed with first

lowest rate then AMC reserves the right to give same work to Third lowest tenderer as first

lowest sanction rate.

23 No Advance payment or Performa invoice payment or bank through payment will be considered

even if any discount is offered for the same.

24 After satisfactorily Work Completed & Certified by AMC Staff, Payment will be given to tenderer

as early as possible on submission of bill. Taxes will be deducted from bill as per rules and

25 Bidder shall have to submit Name of Bank, Name of branch with address, A/C. No., MICR No. and

PAN No. of his firm. for refund of E.M.D.

26 Material supplied shall be new and of first quality according to the specifications and shall be

free from defects (Including concealed fault, deficiency in design, material and workmanship.)

27 No tender will be received after last date and time of receiving tender.

28 Joint Venture and sub contract must not allow in this Tender.

29 A tenderer should quote in figures of each item, the rates of subtotal in figures .The grand total

29 A tenderer should quote in figures of each item, the rates of subtotal in figures .The grand total

shall be written in figure and words. The amount for each item should be worked out and the

requisite total given. Special care shall be taken to write figures as well as in words and the

amounts in figures only. The total amount shall be written both in figures and in words. In case

amounts in figures only. The total amount shall be written both in figures and in words. In case

of figures the words Rs. should be written before the figure of rupees and the words ‘paise’

after the decimal figure e.g. Rs. 2.15 p. and in case of words the words ‘Rupees’ should proceed

and the words ‘paise’ should be written at the end. Unless the rate is in whole rupees and

followed by the word ‘only’, it should invariably be up to two places of decimal.

30 A tenderer shall submit the tender who satisfies each and every condition laid down in this

notice and tender documents, failing which, the tender shall be liable to be rejected.

31 This notice of tender shall form part of the contract documents.

32 Tender shall be received by Registered Post A.D. or Speed post or Hand Delivery only at The

Office of Tender Office, Central Record Office, Mezzanine Floor “B”-Block, Sardar Patel Bhavan,

Ahmedabad Municipal Corporation, Danapith,Ahmedabad – 380 001, Gujarat (INDIA) and

technical tender shall be opened as prescribed date and time in the presence of tenderer who

may be present. The tenderer shall submit their tender before the last date & time mentioned

elsewhere. The tenderer shall take caution to submit their tender well in advance to avoid rush

in tender officer.

33 The tenders shall be received under Registered Post A D/ Speed post / in persons, should not be

adopted under the circumstances.

(i)Late tenders (i.e. tender received after the specified time of opening), delayed tenders(i.e. tenders

received before the time of opening but after due date and time of receipt of tenders) and post

tender offers shall not be opened and considered at all.

(ii) The tenders received (by registered post) after the time and the date specified in the tender

notice shall not be received by the concerned office from the postmen, for which, date and

time may be recorded on the cover of the tender as to when tender was refused by the concern

officer or Administrative Head or any other person in charge.

(iii)Necessary records should be maintained for refusal of such tenders in the registers for receiving

tenders and should be initialed by tender officer, Administrative Head or any other person in

34 On the occurrence of any accident on site while working, which results in death of workman,

employed by the contractor or any disability likely to be occurred, in respect of which

compensation may become payable under workmen's compensation Act has to be borne by

the Tenderer. AMC is not responsible for the same.During the work, if any damage is done to

the AMC property than it will be in the scope &responsibility of the contractor to overcome the

same at his own cost; failing which the amount will be recovered from the contractor’s bill.

Persons tendering are informed that no erasures or alterationsby them in the text of the

document sent herewith shall be allowed and any such erasures or alterations shall be

disregard. If there is any error in writing, no overwriting should be done, the wrong word or a

figure should be struck out and the correct one written above or near it in unambiguous way.

Each correction should be initialed.

36 All Corrections and additions or pasted slips must be initialed.

37 The Insurance Company’s bond will not be accepted against the security deposit.

38 TENDER SHALL BE LIABLE TO BE REJECTED

 Not more than one tender shall be submitted by contractor or by a firm of contractors. no two

or more concerns in which an individual is interest as a proprietor and /or a partner&/or

director shall submit tender for the execution of the same work/tender. If they do so all such

tender shall be liable to be rejected.

 DISQUALIFICATION:

-Even though the applicants meet the required criteria,they are subject to be disqualified if applicant

or any of its constituent partner/s,director/s have :-misleading or false representation in the

forms,statements and attachments submitted;or -been debarred or terminatedor blacklisted by

central govt.organization/state Govt.organization/AMC/Any municipal corporation/ULBs etc.

- If,any of the directors,partners of the proprietor has a criminal history or has been convicted by any

court of law of any of the offenses under any Indian laws.

- If,any criminal proceeding is pending in any court of law in India against any of the directors,partners

or a proprietor and if any such proceeding culminates into conviction.

39 Interpretation of Documents

Tenderer shall carefully examine the Tender Documents and fully inform themselves as to all the

conditions and matters which may in any way affect the work or the cost thereof. Should a tenderer

find discrepancies in or omission from the specification or other documents, or should be in doubt as

to their meaning, he/she should at once address a query to the Additional Chief Engineer (Electrical),

5th Floor,” C”-Block, Sardar Patel Bhavan,Danapith,Ahmedabad-380 001. Any resulting interpretation

of the Tender Documents shall be issued to all tenderers as an Addendum. Verbal clarification and /

or information given by the any employee/officer of AMC shall not be binding on the AMC.

40 It shall be incumbent on the successful tenderer to pay stamp duty on the contract and legal

cvcharges for preparation of the contract agreement.

41 Payment terms:-

For SITC of HVAC Work:

(a) On Delivery : 70% of the contract price shall be paid on receipt of satisfactory Goods and upon

submission of the documents from tenderer.

(b) On Installation : 20% of the contract price shall be paid on completion of mechanical Installation

(c) Successful Testing &Commissioning On Final Acceptance : The remaining 10% of the contract price

shall be paid to the Contractor against Testing &commissioning of the complete system after

satisfactory competition trial Run for 1 Month and handed over SITC work to AMC.

42 Secure HVAC equipment premises with preventing entry of unauthorized persons, fatal or non fatal

accident, and illegal and anti social activities. Tenderer will have to file FIR at nearest Police Station if

any HVAC related equipments are stolen from the Building. The copy of FIR should be submitted in

the department immediately. If any thefts occurred than said amount shall be deducted from the

assign bill and in that case Contractor shall be responsible for any police case, court case or any type

of compensation suit filed by any person, institute, or government.

43 Tenderer shall have to furnish a list of adequately qualified personnel with him & have well furnished

workshop. The full detail must be given with the tender.

44 Tenderer must provide PF and GST Registration certificates along with Tender. Copy of Latest GST

Return and latest PF Challan attached with Tender.

45 Award to Contract : The Contractor who has filled overall lowest price of BOQ items will be consider

46 Municipal Commissioner has reserves the right to reject all the tenders or the lowest or any other

tender in part or full without assigning any reason whatsoever or to split the tenders and award to

one or more than one tenderer in the interest of public. The tenderer shall have no cause of action or

47 If due to any reason, payment is delayed then tenderer is not eligible to claim/demand any

compensation for loss of interest there of.

48 To remove all debris accumulated at site from excavation & construction work or any kind of waste

material from site as per instruction of Engineer incharge without any extra cost.

49 The bidder is required to check the website https://tender.nprocure.com for Addendum if any

before 48 hours of last date and time of tender submission. The bidder who quotes the bid without

attaching the addendum shall be rejected.

Addendum is a part of tender and the tenderer who quotes the tender without attaching the

addendum will be rejected.

I/We hereby do certify that I /We have read above instruction 1 to

carefully and understood very well and taken into account while tendering and have

quoted our firm price accordingly.

Signature of the Tenderer Addl. Chief Engineer

Name : (Electrical)

Company’s seal AMC

ELIGIBILITY CRITERIA FOR TENDERER

Qualification shall be based on meeting all the following minimum pass/fail criteria

regarding the Supplier’s general and particular experience, personnel and financial

position, as demonstrated by the bidder’s responses in the forms attached. The AMC

reserves the right to waive minor deviations, if they do not materially affect the capability

of a bidder to perform the contract.

1. Tenderer must have to Pay Tender Fee of Rs.2400/- through Demand Draft only in

favour of “Municipal Commissioner, AMC” payable at Ahmedabad from banks

mentioned in Annexure-I only with their tender documents.

2. Tenderer must have to Pay EMD of Rs.1,00,000/- through Demand Draft OR Bank

Guarantee only in favour of “Municipal Commissioner, AMC” payable at Ahmedabad

from banks mentioned in Annexure-I only with their tender documents.

3. Tenderer should be original manufacturer or Authorized distributer/dealers for

Ductable & Cassette A.C. and having experience of such/similar type of work for the

same in various types of Erection and Commissioning at various Places.(Latest

authorization certificate must be attached along with tender).

4. Tenderer must have minimum experience of satisfactory work completion of one

year for such/similar type of work at various Places in any Central/State

Government/Semi Government/Municipal Corporation during last 7 years ending last

day of month previous to the one in which Tender are invited should be either of

Tenderer must have atleast

One similar type of work order completed of Rs.80.00 Lakh (80% of tender amount)

Two similar type of work orders completed of Rs.50.00 lakh (50 % of tender amount)

Three similar type of work orders completed of Rs.40.00 lakh (40 % of tender

amount) in any Central/State Government/Semi Government/Municipal Corporation.

(Private contracts like society, clubs etc. will not be considered).

 Similar work means S.I.T.C. of Ductable/Cassette/Package/VRV/Chiller A.C. Plant

contract work done by the contractor.

 Copy of work order along with satisfactory Work Completion Certificate must be

submitted by the Tenderer.

 All certificates / evidence must be duly certified & attached by the Tenderer. All work

/ experience details must be furnished with attested copies for evidence.

 Tenderer must have also experience of AHU with ducting installation work.

5. Tenderer must have sound financial capacity and having average annual financial

turnover in last three financial years shall not be less than Rs. 30.00 Lakh. (Note : The

CA certified turnover certificate & Audited balance sheets for the last three financial

years must be submitted.)

6. The Tenderer must submit a solvency certificate from a Nationalized Bank/scheduled

Bank of an Amount of Rs. 20.00 lakh (20 % of estimated cost of tender). Bank

Solvency shall not be older than one year period.

7. Litigation History:

he bidder should provide accurate information on any litigation history or arbitration

resulting from contracts completed or under execution by him over the last 10 years.

This should also include such cases, which are in process / progress. A consistent

history of awards against the bidder or any partner of a firm may result in failure of

the bid. In case the bidder has not provided such information and has come to the

notice of the authority, the bid shall be rejected at whatsoever stage and in such

case all the losses that will arise out of this issue will be recovered from the

bidder/contractor and he shall not have any claim for the same.

Signature of the Tenderer Add. Chief Engineer

Name : (Electrical)

Company’s seal AMC

GENERAL CONDITIONS OF CONTRACT

The Goods supplied under this Contract shall conform to the standards mentioned in the Technical

Specifications, and, when no applicable standard is mentioned, to the authoritative standard

appropriate to the Good’s country of origin and such standards shall be the latest issued by the

concerned institution.

2.0 INSPECTIONS AND TESTS

2.1 The Purchaser or its representative consultant shall have the right to inspect and / or to test the Goods

to confirm their conformity to the Contract. The special conditions of contract and / or the Technical

Specification shall specify what inspections and tests the Purchaser requires and where they are to be

conducted. The Purchaser shall notify the Tenderer in writing of the identity of any representatives

retained for these purposes.

2.2 The inspections and tests may be conducted on the premises of the Tenderer or its subcontractor(s),

at point of delivery and / or at the Good’s final destination. Where conducted on the premises of the

Tenderer or its subcontractor(s), all reasonable facilities and assistance (including access to drawings

and production data) shall be furnished to the inspectors at no charge to the Purchaser.

2.3 Should any inspected or tested Goods fail to conform to the Specifications, the Purchaser may reject

them and the Tenderer shall either replace the rejected Goods or make all alterations necessary to

meet specification requirements free of cost to the Purchaser.

2.4 The Purchaser’s right to inspect, test and, where necessary, reject the Gods after the Good’s arrival in

India shall in no way be limited or waived by reason of the Goods having previously been inspected,

tested and passed by the Purchaser or its representative prior to the Goods’ shipment from the country

2.5 Nothing in above clause shall in any way release the Tenderer from any warranty or other obligations

under this Contract.

3.1 The Tenderer shall provide such packing of the Goods as is required to prevent their damage or

deterioration during transit to their final destination as indicated in the Contract. The packing shall be

sufficient to withstand, without limitation, rough handling during transit and exposure to extreme

temperatures, salt and precipitation during transit and open storage. Packing case size and weights

shall take into consideration, where appropriate, the remoteness of the Good’s final destination and

the absence of heavy handling facilities at all points in transit.

3.2 The packing, marking and documentation within and outside the package shall comply strictly with

such special requirements as shall be expressly provided for in the Contract and, subject to Clause

in any subsequent instructions ordered by the Purchaser.

4.0 DELIVERY AND DOCUMENTS

The Supplier shall mail the following documents to the Purchaser :

(a) Copies of the Supplier invoice showing Goods description, quantity, unit price, total amount.

(a) Copies of the Supplier invoice showing Goods description, quantity, unit price, total amount.

(b) Delivery note / railway receipt / truck receipt;

(c) Manufacturer’s / Supplier’s guarantee certificate;

(d) Inspection Certificate issued by the nominated inspection agency and the Supplier’s

factory inspection report; and

(e) Certificate of origin.

The Goods supplied under the Contract shall be fully insured against loss or damage incidental to

manufacture or acquisition, transportation, storage and delivery in the manner specified in the Special

Conditions of Contract.

6.0 TRANSPORTATION

6.1 Where the Tenderer is required under the Contract to deliver the Goods, FOB, transport of the Goods,

up to and including the point of putting the Goods, up to and including the point of putting the Goods on

board the vessel at the specified port of loading, shall be arranged and paid for by the Tenderer, and

the cost thereof shall be included in the Contract Price.

6.2 Where the Tenderer is required to effect delivery under any other terms, for example, by post or to

another address in the source country, the Tenderer shall be required to meet all transport and storage

expenses until delivery.

7.1 The Tenderer warrants that the Goods supplied under the Contract are new, unused, of the most recent

or current models & incorporate all recent improvements in design & materials unless provided

otherwise in the Contractor. The Tenderer further warrants that the Goods supplied under this Contract

shall have no defect arising from design, materials or workmanship (except insofar as the design or

material is required by the Purchaser’s Specifications) or from any act or omission of the Tenderer, that

may develop under normal use of the supplied Goods in the conditions obtaining in India.

7.2 Defect Liability Period Entire work shall be12 months from date of completion of trial run for

1 months after date of satisfactorily completion and handed over SITC work

7.3 The Purchaser shall promptly notify the Tenderer in writing of any claims arising under this warranty.

7.4 Upon receipt of such notice, the Tenderer shall, with all reasonable speed, repair or replace the

defective Goods or parts thereof, without additional costs to the Purchaser other than, where

applicable, the cost of inland delivery of the repaired or replaced Goods or parts from the port of entry

to the final destination.

7.5 If the Tenderer, having been notified, fails to remedy the defect(s) within a reasonable period, the

Purchaser may proceed to take such remedial action as may be necessary, at the Tenderer's risk and

expense and without prejudice to any other rights which the Purchaser may have against the Tenderer

under the Contract.

In Warranty Maintenance :

(a) The contractor will give routine services for minimum 4 times in a year.

(b) The contractor will attend all the preventive and break down maintenance call without any labour or part

8.1 The method and conditions of payment to be made to the Tenderer under the Contract shall be done

after Satisfactory Work Completion & bill Submission by the Contractor of given Sub-order by Light

8.2 The currency in which payment is made to the Tenderer under this Contract shall be Indian Rupees.

Payment will be done to the party as soon as possible after bill Submission of S.I.T.C. Work of given

9.1 Prices charged by the Tenderer for Goods delivered and Services performed under the Contract shall

be fixed price without any price adjustment.

10.0 SUBCONTRACT

10.1 The Tenderer shall notify the Purchaser in writing of all subcontracts awarded under the Contract if not

already specified in his Tender. Such notification, in his original Tender or later, shall not relieve the

Tenderer from any liability or obligation under the Contract.

11.0 DELAYS IN THE TENDERER’S PERFORMANCE

11.1 Delivery of the Goods and performance of Services shall be made by the Tenderer in accordance with

the time schedule specified by the Purchaser.

11.2 An unexcused delay by the Tenderer in the performance of its delivery obligations shall render the

Tenderer liable to any or all of the following sanctions: forfeiture of its performance security, imposition

of liquidated damages, and / or termination of the Contract for default.

11.3 If at any time during performance of the Contract, the Tenderer or its subcontractor (s) should

encounter conditions impending timely delivery of the Goods and performance of Services, the

Tenderer shall promptly notify the Purchaser in writing of the fact of the delay, its likely duration and its

cause(s). As soon as practicable after receipt of the Tenderer’s notice, the Purchaser shall evaluate the

situation and may at its discretion extend the Tenderer’s time for performance, in which case the

extension shall be ratified by the parties by amendment of the Contract.

12.0 TERMINATION FOR DEFAULT

The Purchaser may, without prejudice to any other remedy for breach of contract, by written notice of

default sent to the Tenderer, terminate the Contract in whole or in part:

13.0 APPLICABLE LAW

The Contract shall be interpreted in accordance with the Indian laws.

14.1 Any notice given by one party to the other pursuant to the Contract shall be sent in writing (or by

telegram / telex / fax and confirmed in writing) to the address specified for that purpose in the Special

Conditions of Contract.

14.2 Any notice shall be effective when delivered or on the notice’s effective date, whichever is later.

15.0 TAXES AND DUTIES

The Price quoted for work must be of Site / Store delivery of Corporation with including applicable all

types of Govt. taxes. Prices must be firm. No any tax changes given to the contractor during contract

16.0 CHILD LABOUR ACT :

16.1 No Contractor shall employ any child heaving age 5 years to 14 years, as it is prohibited by the Child

Labour Prohibition and Regulation Act, 1986. The Hon. Supreme Court has given certain guidelines

and as per the guidelines, if employment of child labour is detected on the site work, the employer i.e.

the Contract shall have to deposit Rs. 20,000/- (Rupees Twenty Thousand only) in the Child Labour

welfare Fund. If the employer refuses to deposit, then action will be taken for contempt of Court of the

Supreme Court Judgment and also will be prosecuted by the concerned authority.

16.2 Because of the breach of any provision of the Child Labour Prohibition and Regulation Act, 1986, by

the Contractor and for that Municipal Corporation has to pay any amount, then the Municipal

Corporation shall recover the said amount from the Contractor.

17.0 BRAND NAMES

17.1 The make of equipments shall be as per attached list. If make of a particular item is not given in the

tender, then prior approval of AMC for that make must be required

17.2 Bidder must clearly mention make of AC,Ventilation Fans, Panels etc. and its catalogue no if any, name

and full address of the manufacturers must be submitted with the tender.

18.0 EQUIPMENT FOR EXECUTION

To expedite the execution work, the contractor has to submit a complete list of equipment he proposes

to deploy on this work along with the tender. Tenderer not complying with this requirement may be

considered non-responsive and his tender is liable to be rejected.

19.0 INSURANCE:

19.1 The Goods supplied under the Contract shall be fully insured against loss or damage incidental to

manufacture or acquisition, transportation, storage and delivery in the manner specified in the Special

Conditions of Contract.

19.2 This warranty shall remain valid for 12 months after the taking over of complete working AC System

fully or any portion thereof as the case may be, have been delivered, erected and commissioned to the

final destination indicated in the Contract, unless specified otherwise in the Special Conditions of

20.0 EXTRA ITEM OF WORK

20.1 The extra work beyond tender item, if required to be executed during course of execution of regular

work, that shall have to be carried out by the contractor as per the instructions and satisfaction of the

Engineer–in-charge. This will be paid separately as per detail rate analysis made by the department

based on market rate or prevalent SOR whichever is less.

20.2 If in the interest of the AMC it is necessary to change either any site or the design of the proposed work

the Contractor shall carry out the same at his quoted rates without charging any extra and he will be

paid at the rates quoted by him and no claim for extra amount for subsequent changes made will be

21.0 MEASURMENT OF WORK

21.1 The measurements of work will be taken according to the usual method in use in the Ahmedabad

Municipal Corporation and no proposals to adopt alternative methods will be accepted. The Concerned

Additional Chief Engineer’s decision as to what is ‘the usual method in use in the Ahmedabad

Municipal Corporation’ will be final.

21.2 The Contractor shall submit all the bills on the printed forms to be had on application at the office of the

Engineer-in-Charge. The charges to be made in the bills shall always be entered at the rates specified

in the agreement or at the part/reduced rates subject to the approval by the Engineer-in-Charge in the

case of items not completed/executed as per agreements or in the case of any extra work ordered in

pursuance of these conditions and not mentioned or provided for in the tender, at the rate hereinafter

provided for such work.

Quantity indicated in the Bill Of Quantity can be change as per Site Requirement and the same will be

considered on actual for making payments from the same.

22.0 NO CLAIM TO ANY PAYMENT OR FOR RESTRICTION OF WORK: .

22.1 In the case of such delay in the supply of materials, Ahmedabad Municipal Corporation shall grant such

extension of time for the completion of the works as shall appear to the Engineer-in-Charge to be

reasonable to accordance with the circumstances of the case. The decision of the Engineer-in-Charge

as the extension of time shall be accepted as final by the Contractors.

22.2 Action and compensation in case of bad work : If, at any time before the expiry of defects

Liability,period, it shall appear to the Engineer-in-charge or his sub-ordinate in charge of the work, that

any work has been executed with unsound, imperfect or unskilled workmanship or with materials or

inferior quality or that any materials or articles provided by him for the execution of the work are

unsound, or of a quality inferior to that contracted for or are otherwise not in accordance with the

contract, it shall be lawful for the Engineer-in-Charge to intimate this fact in writing to the Contractor and

then notwithstanding the fact that the work, materials or articles complained of, may have been passed,

certified and paid for, the Contractor shall be bound forthwith to rectify, or remove and reconstruct the

work so specified in whole or in part as the case may require, or if so required shall remove the

materials or articles so specified in whole or in part and provide other proper and suitable materials or

articles at his own charge and cost, and in the event of his failing to do so within a period to be specified

by the Engineer-in-charge in the written intimation aforesaid, the Contractor shall be liable to pay

compensation at the rate of one percent on the amount of the estimate of the rectification for every day

not exceeding ten days during which the failure so continues, and in the event of any such failure as

aforesaid continuing beyond ten days, the Engineer-in-charge may rectify or remove, and re-execute

the work or remove and replace the materials complained of, as the case may be at the risk and

expense in all respects of the Contractor should the Engineer-in-charge consider that any such inferior

work of materials as described above may be accepted or made use of, it shall be within his discretion

to accept the same at such reduced rates as he may fix therefore,

However, the contractor shall be responsible for normal maintenance of the work till the final bill for the

work is prepared by the corporation officer.

23.0 SETTING OUT THE WORKS

The Contractor shall be responsible for the true and proper setting out of the works in relation to original

points, lines and levels of reference given by the Engineer in writing or shown on the Drawings and for

correctness, subject as above mentioned in the position, levels, dimensions and alignment of all parts

of the works and for the provision of all necessary instruments, appliances and labour in connection

24.0 SAFETY MEASURES AND SERVICES

24.1 The Contractor shall be responsible for the safety of all workmen and other persons entering or in the

works and shall take all measures necessary to ensure their safety to the approval of the Engineer’s

Representative. Reference in these respects shall also be made to the Conditions of Contract and

safety provisions but in particular, such measures shall include the following :

(a) Provision of proper safety and emergency regulations’ fire, gas and electric shock precautions,

stretchers, first-aid box and fire extinguisher together with rescue facilities generally for each place of

(b) Provision of efficient safety helmets for all personnel including the Engineer’s Representative and each

of his staff and any authorized visitors to site;

(c) Safe control of water including provision of ample standby generating and pumping plant;

(d) Provision and maintenance of suitable lighting to provide adequate illumination of works with

appropriate spares and standby equipment;

(e) Provision and maintenance of safe, sound mechanical equipment, each item of plant having an up-to-

date testing certificates ;

(f) Provision and maintenance of safe, sound, ropes, slings, pulleys and other lifting tackle, each appliance

having an up-to-date testing certificate where appropriate;

(g) Provision of notices 1.25 m x 1.5 m size written in bold letters in English, Gujarati and Hindi to be

erected on existing footpaths and at points of access likely to be used by the pubic, which shall warn

the public of the Works. These notices shall be in addition to any statutory requirements demanded of

the Contractor.

24.2 Contractor shall provide and maintain at his own expenses all lights, guards, fencing and necessary

watchmen when and where necessary or ad required by Owner / Engineer for the protection of the

works or for the safety and convenience of those employed on the works and the public. Contractor

shall also provide at his cost traffic barricades, men for diverting and controlling traffic, necessary sign

boards for diversion of traffic. In the event of failure on the part of Contractor, Owner man with or

without notice to Contractor put up a fence or improve a fence already put up or provide and/or improve

the lighting or adopt such other measures as he may deem necessary, and all the cost of such work

and procedures as may be adopted by Owner / Engineer shall be borne by Contractor. Maintenance of

adequate warning and general lighting at nights a t place of work is essential.

24.3 Contractor shall take the necessary permission and clearance of all the authorities like department of

Roads, traffic, Water Supply and Drainage; Electricity Board, Telephone Company, etc. Wherever

necessary and observe the regulations regarding the execution of work in congested areas, heavy

traffic areas, etc.

25.0 LIABILITY OF ACCIDENTS TO PERSONS:

Responsibilities and liabilities of the contractor under Workmen’s Compensation Act.

(a) On the occurrence of an accident, which results in death of workmen employed by the contractor or

which is so serious as is likely to result in death of any such workmen, the Contractor, shall within

hours of happening of such accident(s) intimate, in writing, to the Engineer in charge the fact of such

(b) In the case of an accident, in respect of which compensation may become payable under Workmen’s

Compensation Act, It must be payable by the Contractor only.

(c) In any of such accident the contractor shall have sole responsibility of all the consequences like police

case, accident compensation to the work man, hospitalized expense of the work man and any other

implication may arise then after.

26.0 CLEARING SITE ON COMPLETION

26.1 On completion of the Works, the Contractor shall clear away and remove from the site all

Constructional Plant, surplus materials, rubbish, Temporary Works of every kind and leave the whole of

the site and the works clean and in a workmanlike condition to the satisfaction of the Engineer.

26.2 The Contractor shall comply with the above requirements before the start of the Defects Liability Period

and by the end of that period shall clear, regrade terrace, level topsoil and grass all his working areas

as instructed by the Engineer’s Representative. No separate payment shall be made on his account.

27.0 COMPLETION PERIOD :

Work Completion Period will be strictly 60 Days from the Date of Work Sub-Order given

Subject to Site Clearance.

29.0 Tenderer has to provide PF and GST Registration certificates along with Tender. Copy of

Latest GST Return and latest PF Challan attached with Tender.

30.0 PENALTY CLAUSE :

For SITC Work :

The Delayed Work of given S.I.T.C. will attract Penalty @ 0.1% per Day for remaining work up to

maximum of 10 % on the value of remaining S.I.T.C. work (Sub-order Work) that not completed in Time

Limit. Completion period for S.I.T.C. work in the tender will be 60 days subject to site clearance.

Signature of the Tenderer Addl. Chief Engineer

Name : (Electrical)

Company’s seal AMC

TECHNICAL SPECIFICATIONS

1.0 ECBC Compliance:

The proposed HVAC system design complies to following ECBC norms (Code 2009) which

shall be complied by bidder in their offered equipments:

a. Energy Efficient Variable Refrigerant Flow System offered is having minimum COP

b. All cooling equipment operations are regulated based on indoor temperatures.

c. All areas shall have independent control for operation and temperature settings.

d. Resistivity ( R ) of insulation material for pipes is more than 0.35.

e. Under deck insulation having U VALUE OF 0.12 BTU/HR./DEG C

2.0 SCOPE OF WORK AND BASIS OF DESIGN

2.1 BROAD SCOPE

The scope of this Tender covers Engineering , Design, Manufacturing / Fabrication, Shop

testing, Supply, Installation (including dismantling, lifting, shifting, assembling etc.), Site

testing, and Commissioning of the following system components (confirming to tender

specifications, relevant ASHRAE codes and in accordance with the requirements of Bill of

quantities and approved drawings) for HVAC SYSTEM proposed for Hospital Building.

The condensing unit shall be of Corrosion resistant Galvanized powder coated or equivalent

paint Sheet steel low vibration assembly installed on suitable vibration isolators and

comprising of energy efficient Scroll compressor with controls such as thermal protector,

HP/LP cut-outs, Pressure relief valve; the outdoor unit shall also comprise of finned tube air

cooled condenser and condenser fan unit; the units shall have integral refrigerant copper

piping within compressor and condenser and accessories such as refrigerant shutoff valves

at compressor / compressors and liquid refrigerant outlet if required & filter dryer; Cooling

fans shall have protective metal frame.

HVAC JOB Scope Covers:

SITC of Ductable & Cassette type Split Air Conditioning System Associated electrical work.

All quantities mentioned in the Bill of quantity are approximate and the contractor shall not

be eligible for any claim due to any variation in / or omission of any item.

Any extra item shall be calculated on the rate analysis basis on Market Rate or Old Tender Rate.

After completion of work 1 Year Guarantee Period / Defects Liability Period.

2.3 BASIS OF DESIGN & EQUIPMENTS

Proposed system / system components offered shall have:

 Higher efficiency & Co-efficient of Performance. 

 Minimum power consumption, efficient parts load operation. 

 Ease of operation and maintenance. 

 Minimum vibration and noise level. 

 Reliability, Simplicity, Compactness, Modularity and Interchangeability. 

 Better Environmental protection and Indoor Air Quality.

 Prevent frosting on coil & maintain cooling efficiency.

 Reduce inrush current & energy efficient

SPECIFICATION OF OUTDOOR UNITS

Outdoor units of the system shall be compact air cooled type.

Outdoor Units Condenser must be made with Copper metal.

The outdoor units shall be suitable to operate in the higher Ambient requirement of Ahmedabad.

Noise level of outdoor units shall not exceed 70 dB (A) at a distance of 1.0 m from the unit.

Noise level of Indoor Unit shall not exceed 44 Db at a distance of 1.5m.

Outdoor units shall be complete with following safety devices:

High pressure / Low Pressure Protection

Fan driver overload protector Over

Inverter Overload Protector / Digital Protector Fusible Plug

Unit shall be supplied with

Installation manual Operation Manual Connection Pipes Clamps

Units will use R-410, R-407, R134, R32 like Refrigerant gas.

TECHNICAL SPECIFICATION OF PACKAGE AIR-CONDITIONING UNITS

Scope of Supply

The scope of supply shall include package air conditioning units shall be delivered for each power unit as per this

specification and standard.

Package Air Conditioning Unit shall be delivered with air cooled condenser. The scope of supply for package air

conditioning unit shall include all the items required for reliable, safe and unattended trouble free operation consisting of

a) Inner evaporator unit/air cooler unit with moisture separator.

b) An outer compressor and condenser unit.

c) Installation Manual for routing of the refrigerant piping.

d) Operation and Maintenance Manual from OEM.

e) Manufacturer’s certificate on the packaged air conditioner.

2.0 APPLICABLE CODES AND STANDARDS

Following codes & standards will be followed:

AMCA201 Fan & systems

AMCA210 Laboratory Method for testing of fans

IS8148 Package Air conditioner

ASHRAE37 Standard method for testing for rating

ANSI-B9-1/IS660 Safety code for mechanical refrigeration

AMCA2404 Drive arrangement for fans

BS2827 Specification for Copper & Copper alloy tubes

IS8148:2003 Packaged Air conditioner-Specification for performance

2.0 GENERAL FUNCTION AND DESCRIPTION

General Function

Package Air Conditioning Units are intended for heat removal from operating

equipment, cooling and air de-dusting in the rooms and the compartments of the

buildings of nuclear power plant.

An air conditioning unit utilizes the vapor compression refrigeration cycle to cool

refrigerant and reject the heat collected from the refrigerant plus the heat from the

compressor to ambient air.

Ozone-safe/ eco-friendly refrigerant is to be used in the Air Conditioning Units.

During operation the refrigerant is compressed in compressor from evaporation

pressure up to condensation pressure. Thereafter it comes into condenser, where it is

cooled and condensed by ambient air. Then liquefied refrigerant is further cooled by

throttling and comes into evaporator. In the evaporator the refrigerant gets heated

and evaporated owing to the heat, taken from the air-conditioned area.

Package AC is bigger version of common window/ split ac having higher cooling rates.

Units are intended for heat removal from operating equipment, cooling and air de-

dusting in the rooms and the compartments of the buildings of nuclear power plant.

Air cooled package air conditioner (PAC) units having scroll compressor are envisaged

to cater to the air conditioning load.

The packaged indoor evaporative units shall be kept in PAC room where as

condensing unit shall be kept outside the PAC Room /Passage area / Roof. Outlet of

all the package units shall be collected in a common plenum chamber through flexible

canvass connection & volume control dampers. The conditioned air is the n

distributed to various AC areas through duct along with diffuser(with volume control

damper) running above false ceiling. The return air from all these areas shall be

collected above false ceiling & shall be taken back to the PAC room.

The PACs shall consist of:-

i) Scroll compressors suitable for refrigerantR-410A /R 32/ R407C /R134 with drive

motor, air-cooled condenser with integrally groove copper tubes and propeller

fan, DIDW blower, cooling coil, filter, inter connecting refrigerant piping,

insulation, vibration isolator, inbuilt – microprocessor-based controller and

ii) Vibration isolation pads.

iii) First charge of refrigerant and oil.

Terminal points

 Packaged air-conditioner outlet flange connections

 Theterminalpointof380V.3phasepowersupplyforeachPAC’swillbeuptothe PAC’s

3) Control & Instrumentation

 Air conditioners in case of restoration of voltage after deenergization shall continue

operation without any repeat of activation by the operator.

 Following protective function shall be there for package airconditioners:-

 Increaseofpump-inpressureorsuctionpressuredecreaseinthecompressor.

 Decrease of pressure difference in the greasing system and in the compressor

 Protective function of the fan with increase of a current of the electric motor of

 Protection against an electro heater over heat (at temperature excess above95°С)

 Pressure difference increase on the air filter of the conditioner

 Protection at drainage failure

 Protection at increase of a current of the electric motor of the compressor

 Allows adjustment of temperature set points, range of control.

 System Auto Restart-The auto restart feature will automatically restart the

system after power failure. Time delay is programmable.

 Safety interlocks between condenser and compressor and time delay for restart

of compressors.

 Control panel of the air conditioner the following signals for display on the

central control post should be provided:

i. Activated state of the conditioner

ii. The disconnected state of the conditioner

iii. Activation of ALT

iv. Mal function of the conditioner by the generalised signal

 The scheme of automatics of conditioners should provide realization between

the standby conditioners and disconnection of conditioners in case of a fire in

the premise where they are installed with disabling of connection, including

disabling of connection of ALT(Automatic load transfer).

 Alarm system on the central control post depending on the

connected/disconnected condition of the conditioner and the causes of its

emergency fail should be activated by the break-make contacts, integrated in

the directcurrentline24V/48Vwiththecurrentrunningthroughtheclosed contacts

from 1 to 400 mА.

REQUIREMENT FOR OPERATION

Air conditioning unit shall be manufactured, tested, operated by specialists duly

qualified as per appropriate qualification standards and permitted to do the job.

The design of the system must ensure the possibility of repair with replacement, if

necessary, of individual elements and parts during maintenance of the NPP

equipment under field conditions.

Air conditioning units shall be resistant to ambient conditions, as specified in this

All air conditioning units shall conform to energy efficiency norms with highest

energy rating and have minimum specific energy consumption. Blue fin can be

adopted by vendor for performance improvement of AC.

GENERAL DESIGN REQUIREMENTS

Design of Air Conditioning Unit shall be based on as per latest technology available in

the market. All possible upgrades shall be incorporated with prior approval. The

design of the system must ensure the following

 Maintaining the preset temperature conditions inside the premises.

 Alltheequipmentshallbecapableofwithstandingthestresses,whichmaybe experienced

during normal operation and test

 All the equipment shall be designed to permit inter-changeability of parts and ease

of access during inspection, maintenance, installation and repair of various parts.

 Refrigerant shall be environment friendly having ClassI/ClassII flammability as per

ISO 817 or other equivalent standard.For identification & detection of leak there

must be dedicated refrigerant leak detection system.

Allowed level of noise from Air Conditioning Unit shall not higher than 85 dB(A) of

total proportional value at the distance of 1 m from equipment.

All the surfaces of air conditioners shall be protected with corrosion-resistant

coating/epoxy coating. Life of corrosion-resistant coating shall be the entire life of

the conditioner.

The compressor shall be hermetic/semi-hermetic scroll type.The same shall be

suitable for R410A/ R32/ R407c refrigerant. The compressor shall be mounted on

anti- vibration spring/rubber pads and shall be positioned in such a way that it is

freely accessible with sufficient space all around for easy maintenance. Safety

controls like High and Low pressure cut-out overload and single phasing protection

for the motors shall be provided. A crankcase heater shall also be provided, if

considered necessary by the vendor.

Evaporator and Condenser

Air cooled condenser with adequate area shall be provided. The condensing unit

shall be complete with multi-pass heads and shall be fitted with the following:

Fan with drive motor, hot gas inlet and liquid outlet connection with shut off valve

for liquid , drain plug, air vent and test valve.

Air Handling Fan & filter

The air handling fan shall be of the centrifugal type and with forward curved blades.

This shall be driven by means of at Three phase induction motor through V belt drive.

The fan static pressure shall be selected for passing air through high efficiency filters.

The cooling coil shall be of direct expansion type and shall be made of heavy gauge

copper with aluminum fins/blue fins. The fins shall be bonded to the copper tubes

under hydraulic pressure.A distributor shall be provided for feeding the refrigerant to

different sections of the coil. Rows shall be staggered in the directions of airflow. The

velocity of air across coil shall not exceed 2.5 m/s.

Refrigerant Piping

The refrigerant piping shall be either heavy gauge copper .The piping shall be

completely factory assembled, pressure tested, dehydrated and initially charged with

refrigerant gas and compressor oil. The line accessories shall include liquid line

shutoff valve dehydrator, strainer, flow indicator and distributor etc.

All the equipment, except local control panel,mentioned above shall be provided

within a heavy gauge sheet metal cabinet, of floor/ wall mounted type. This shall be

given two coats of anti-corrosive and rust proof paint, finished with two coats of

final paint.Painting shall be as per manufacturers standard..The interior of the

cabinet shall be provided with thermal and acoustic insulation of minimum 25mm

thick. The insulating material shall be fire proof.

The front and back side of the cabinets shall be easily removable

providingmaintenance to all the interior parts.

All the electric wires within the cabinet shall run in flexible conduits and carry

identification tags.The bottom side of the panel shall be specially ribbed to take care

of the transportation.

Each packaged air conditioner shall be provided with required number of neoprene

rubber isolating pads. Suitable drain connection with drain pipe shall be provided

for removal of condensate collected in the tray under the cooling coil.

Cold Surface Insulation

Vendor to ensure that, outside surface temperature of the installed insulation shall

always be above the dew point temperature of the surrounding.Puff material

should not be used as insulation, vendor should ensure to use nitrile butadiene

rubber as insulator.

ELECTRICAL REQUIREMENT

Voltage of mains supply of Package air conditioners shall be380V,50Hz AC supply.

a) Deviations of voltage +/-10%.

b) Deviations of frequency+/-3%.

c) Combined frequency and voltage deviation not exceeding±10%.

d) Power shall be supplied via five-wirelines,depending on supply voltage ofair

conditioner (380 V).

Motors for Package air conditioners shall meet the following requirements:

Supplier shall describe actions and means assuring fire and electrical safety of the

article/equipment/system.

Either a terminal block or sealed terminal block shall be provided for connection of

Electrical insulation class of motor windings shall not be lower than with

temperature rise limited to class B.

Protection degree (IPClass)of the electrical equipment shall not be lowerthan IP55.

When supply voltage is restored after interruption, the Package air conditioner shall

be able to continue operation free of human action.

Inner control circuits and motors shall be protected in the Package air conditioner.

General performance test

Each PAC Package air conditioner shall be tested in the manufacturer’s works.

Performance test (except cooling capacity) of the PACs shall be as per applicable

standards and procedures approved by the Purchaser.

Inspection and testing at manufacturer’s works shall be carried out as covered

under this specification.

7.0 MARKING&IDENTIFICATION

Name plate shall be provided as per OEM standard.

Rating plate shall be provided as per OEM standard.

8.0 PACKING AND SHIPMENT

All equipment / material shall be protected for inland transport to Site and outdoor

storage during transit and at the Site, strictly according to the instructions give in

this Specification. The Vendor shall pack the Equipment and spares at his own cost

sufficiently and properly to ensure that they are free from loss or damage while in

transit to the ultimate destination. The Vendor shall be responsible for any damage

to the item during transit and storage in all climatic conditions due to improper and

inadequate packing.

Only packages constructed out of sound material and of dimensions ,proportional

to the size and weight of contents shall be used. Each package shall be limited to

the size and weight that are permissible under existing sea/rail/road transport

limitations as the case may be.

Bundled materials shall be strapped rigidly with steel band over the protective

covering. Loose materials, e.g. bolts, nuts, etc shall be packed in gunny bags sealed

in polythene bags with proper tagging.

All flanges and similar surfaces which are prone to scratching shall be provided with

either metal or wooden caps(to suit material of equipment) bolted in place .Metal

caps should have a minimum thickness of 3mm and woodencaps should be made

from two layers of wood, each of 10mm thickness, nailed together with the grain of

each layer located at right angles to the other.

All openings in the Equipment shall be tightly covered, plugged or capped to

prevent foreign material from entering.

In the case of large and bulky equipment, the Vendor shall be responsible for as

certaining transport limit ations and supply the Equipment in the minimum number

of components or sub-assemblies, within the frame work of transport limitations.

Wherever necessary, proper arrangement for attaching slings for lifting shall be

The contents of the packages (Packing slip) shall be sealed in thick polythene sheets

and all the inside walls of the packages shall be lined with water proof paper to

protect the Equipment from damage due to dust and moisture.

All machined and plated parts shall be protected with antirust grease.Precautions

shall be taken to protect shafts and journals where they rest on wooden or other

supports likely to contain moisture,at such points,wrappings impregnated with

antirust composition or vapour phase inhibitors shall beused.These shall have

Technical Specification of Ducted Split Units and D-X Condensing Units

SCOPE:The scope under this section shall cover the unitary refrigeration equipments such

as, Ducted Split Units and D-X Condensing Units.

The following standards shall be applicable

a) IS:4283 Hot air fans

b) IS:8272 Industrial cooling fans (man coolers)

c) IS:1391 Room Air conditioners

d) IS:8148 Packaged Airconditioners

e) IS:2997 Air circulator type electrical fan and regulator

f) IS:1169 Electrical pedestal type fans and regulators

g) IS:374 Electrical ceiling type fan and regulator

GENERAL REQUIREMENTS

The unitary air conditioners shall include Refrigeration compressor, Drive Motor, Air

cooled Condensing Unit, Evaporator, Refrigeration Piping, Automatic control system

The equipment assembly shall be well balanced to achieve minimum vibration and noise.

The condensing unit mounted outdoor shall be suitable for the climate and atmosphere

condition prevailing to avoid / minimize corrosion. Necessary anti corrosive treatments

shall be provided for the metallic components.

The equipments shall meet the requirements indicated in the equipment data and shall

meet the cooling load specified at the outdoor design data furnished and the distance /

static head between the outdoor and the indoor units.

ASSEMBELLED UNITS

The unitary Ductable air conditioning units shall be of factory assembled and tested

and of the following category as indicated on the drawing and bill of materials.

Ductable air conditioners having single unit to house compressor, condenser,

evaporator, refrigerant piping and control system.

a) Ductable airconditioners having compressor and control evaporated houses

in one unit and located indoor and condenser housed in another unit

located outdoor

b) The refrigerant 18G piping and power/control cabling inter connecting

condenser and the indoor unit laid externally.

The components for the various equipment assembly shall be as specified in the

following section.

The Compressor shall preferably be of hermetically sealed Scroll/Rotary/twin Rotary type

permanently lubricated . For Ductable systems compressor /shall be of either Digital

Scroll type OR Inverter type Rotary or Twin Rotary types.

The condenser shall be air cooled type consisting of copper tubes with Aluminium fins,

propeller fan with motor, sheet metal steel enclosure with air inlet and exhaust louvers

mounting frame, platform/ brackets etc. The condenser & all its components shall be

provided with suitable anticorrosive treatment. The enclosure shall be of GI / MS CRCA

duly powder coated.

The evaporators shall be ducted or non ducted concealed or exposed types as indicated in the

drawing and bill of quantities.The evaporators shall include coppertubes with aluminiumfins,

expansion valve, centrifugal fan with motor return air filter, supply and return air grilles and louvers,

automatic control panel with thermostat and enclosure. The enclosure for concealed unit shall be of

GI powder coated whereas that for exposed units shall be of ABS plastic The filters shall be anti

bacterial washable and shall be of minimum 10 micron filtration . The filters shall be easily

removable for cleaning / Washing.

The controls shall be with automatic digital electronic LCD display having the following

a) Automatic capacity control

b) Temperature and fan speed control with digital display

c) Timer control

d) Corded/cordless remote control wherever specified.

The control system features shall be as shown below:

Sr.No. Feature Standard Regular

1 Type of control Unit Mounted Remote Remote

2 Type of Remote Control Corded Corded

3 Temperature Setting Yes Yes

4 Fan Speed Selection Yes Yes

5 Timer Control Yes Yes

6 Digital Display Yes Yes

7 Delayed Starting Yes Yes

8 Filter Cleaning Indicator No Yes

9 Inbuilt–ON/OFF No No

10 Quick Cooling Machine No Yes

11 Auto reset No No

12 Auto fanspeed No No

13 Night set mode No Yes

14 Self Diagnosis No No

SUPPORTS & PIPING

Supports & Brackets

4.6.1. The equipment’s shall be properly supported with brackets, hangers, platforms, base

frame etc depending upon the type, location and capacity of the unit.

4.6.2 The supports shall be GI fabricated duly treated and painted for anti corrosion. The

outdoor condensing units shall be properly supported on MS frame work / platform

properly grouted to the RCC Slab / brick walls using bracket.

4.6.3. The Ducted AC unit shall be provided with base frame and pedestals with necessary anti

vibration pads. The ceiling suspended evaporator shall be support edusing anchor

fasteners and GI suspension rods. The wall-hung evaporators shall have GI tensiled back

plate for mounting the unit, grouted to the wall / beam using anchor fasteners.

REFRIGERANT PIPING

There refrigerant piping shall be of Soft/Hard copper RS 250 conforming to EN.1057Table

Y. The fittings shall be of shot end capillary brazing conforming to EN 1254.The pipes

shall be supplied in straight lengths and to be brazed to have required length to achieve

full length between the condenser and evaporator.

The fittings for connection to the condenser evaporator expansion valve etc shall be through

copper – brass composite fitting. The brazing / soldering material shall conform to EN.

4.7.3 There frigerant lines shall be insulated with 18mm thick black EPDM Rubber sleeves/tubing

faced with UV & Fire resistant Glass cloth coating and GI sheet cover to preven theat loss and

condensation .Refrigerant piping running along the partition wall shall be concealed in the

wall with necessary chasing in the wall and closing the same with sand cement plaster with

chicken wire mesh.

All joints in copper piping shall be sweat joints using low temperature brazing and / or silver

Before jointing any copper pipe or fittings, its interiors shall be thoroughly cleaned by passing

a clean cloth via wire or cable through its entire length. The piping shall be continuously kept

clean of dirt etc.

while constructing the joints. Subsequently, it shall be thoroughly blown out using carbon

dioxide / nitrogen. Refrigerant lines shall be sized to limit pressure drop between the

evaporator and condensing unit to less than 0.2 kg per sq.cm. After the refrigerant piping

installation has been completed, the refrigerant piping system shall be pressure tested using

Freon mixed with nitrogen / carbon dioxide at a pressure of 20 kg per sq. cm (high side) and

kg per sq. cm (low side). Pressure shall be maintained in the system for a minimum of

hours. The system shall then be evacuated to a minimum vacuum of 70 cm (500 microns) of

mercury and held for 24 hours. Vacuum shall be checked with a calibrated vacuum gage.

All refrigeration piping shall be installed strictly as per the instructions and recommendations of

air conditioning equipment manufacturer

The evaporator shall be piped to the nearest drain point / drain line using C-PVC

with 6 kg/cm2 pressure rating pipe conforming to 4985 Necessary water seal trap.

2.4 SPECIFICATIONS FOR INDOOR UNITS

HIGH STATIC DUCT TYPE UNITS

These units shall be floor mounted / ceiling suspended with suitable supports to take care of operating

weight of the unit, without causing any excessive vibration & noise. The cold air supplied by these units

will be supplied to the area to be air conditioned, through duct system specified in the tender.

The unit casing shall be Galvanized Steel Plate.

Unit must be insulated with sound absorbing thermal insulation material, Glass Fiber. The noise level

of unit at the highest operating level shall not exceed 44dB(A), at a vertical distance of 1.5 m below the

units with duct connected to the unit.

2.5 REFRIGERANT PIPING

a. All refrigerant pipes and fittings shall be hard drawn copper tubes and wrought copper / brass

fittings suitable for connection with silver solder / phos-copper.

b. All joints in copper piping shall be sweat joints using low temperature brazing and / or silver solder.

Before jointing any copper pipe or fittings, its interiors shall be thoroughly cleaned by passing a

clean cloth via wire or cable through its entire length. The piping shall be continuously kept clean of

dirt etc. while constructing the joints. Subsequently, it shall be thoroughly blown out using carbon

dioxide / nitrogen.

c. Refrigerant lines shall be sized to limit pressure drop between the evaporator and condensing unit

to less than 0.2 kg per sq.cm.

d. Sight glass with moisture indicator and removable type combination dryer cum filter with MS

housing and brass wire mesh / punched brass sheet shall be installed in liquid line of the

refrigeration system incorporating a three valve by pass. After ninety days of operation, liquid line

drier cartridges shall be replaced.

e. Heat exchanger shall be MS heavy duty pipe in pipe type and without any joint in the inner pipe.

f. Horizontal suction line shall be pitched towards the compressor and no reducers shall be provided

for proper oil return.

g. After the refrigerant piping installation has been completed, the refrigerant piping system shall be

pressure tested using Freon mixed with nitrogen / carbon dioxide at a pressure of 20 kg per sq. cm

(high side) and 10 kg per sq. cm (low side). Pressure shall be maintained in the system for a

minimum of 12 hours. The system shall then be evacuated to a minimum vacuum of 70 cm of

mercury and held for 24 hours. Vacuum shall be checked with a vacuum gage.

h. All refrigeration piping shall be installed strictly as per the instructions and recommendations of air

conditioning equipment manufacturer.

3.0 CODES AND STANDARDS

Ducts shall be made of either Galvanized sheets or Aluminum sheet & confirm to IS:

The Galvanized steel sheet shall confirm to IS: 277. Aluminum sheet shall confirm to IS: 737. The

duct construction shall be as follows:

3.1 RECTANGULAR G I DUCT CONSTRUCTION:

MAX. SIDE TYPE OF JOINT BRACING

Up to 750 24 22 flanges None

angle 22 20 angle 25 mm x 3 mm

MS 20 18 angle 40 mm x 3 mm at 1.25 m centers.

2251 & above 40 mm x 3 mm MS

MS 18 16 angle 40 mm x 3 mm at 1.25 m centers.

3.2 HANGERS FOR G I DUCT:

DUCT SIZE (MM) SPACING (M) SIZE OF ROD DIA. (MM)

4.0 G I DUCT INSTALLATION:

All ducts shall be fabricated and installed in workman like manner, generally confirming to IS: 655:

1963 updated. Round duct shall be die- formed for achieving perfect circle configuration.

Ducts shall be straight and smooth on the inside with neatly finished joints. All joints shall be made

All exposed ducts within conditioned spaces, shall have slip joints - no flanged joints. The internal

ends of slip joints shall be in the direction of air flow. Ducts and accessories within ceiling spaces,

visible from air-conditioned areas shall be provided with two coats of mat black finish paint.

Changes in the dimensions and shape of ducts shall be gradual. Air-turns shall be installed in all

vanes, arranged to permit the air to make the turn without appreciable turbulence.

Ducts shall be fabricated as per details shown on drawings. All ducts shall be rigid and adequately

supported where required standing seams, teas, or angles, of ample size to keep the ducts true to

shape and to prevent buckling, vibration or breathing.

All sheet metal connections, partitions and plenums required to confine the flow of air to and through

the filters and fans, shall be constructed of 18 G GSS / 16 G Aluminium, thoroughly stiffened with

25mmx25mmx3mm angle iron braces and fitted with all necessary inspection doors as required to

give access to all parts of the apparatus. Doors shall be not less than 45 cm x 45 cm in size.

Plenums shall be panel type and assembled at the site. Fixing of MS angle, iron flanges on duct

pieces shall be with rivets heads from inside and riveting shall be done from outside.

Rubber lining 6 mm thick shall be used between duct flanges instead of felt, in all clean room ducting

The contractor shall provide and neatly erect all sheet metal work as may be required to carry out the

intent of this specifications and drawings. The work shall meet with the approval of the engineer In-

charge at site in all it parts and details.

The contractor shall make all necessary provisions and allowances to avoid beams or other structural

work, plumbing or other pipes, and / or conduits, the ducts shall be transformed, divided or curved to

on a side, (the required area being maintained) all as per the site requirements.

If a duct can not be run as shown on the drawings, the contractor shall install the ducts between the

required points by any path available, in accordance with other services and as per approval of site

All ductwork shall be independently supported from building construction. All horizontal ducts shall be

rigidly and securely supported, in an approved manner, with trapeze hangers formed of MS rods and

Ducting over ceiling shall be supported from beams, after obtaining approval of site engineer. In no

case shall any duct be supported from false ceiling hangers or be permitted to rest on false ceiling.

Where metal ducts or sleeves terminate in woodwork, tight joints shall be made by means of closely

fitting heavy flanged collars. Where ducts pass through brick or masonry openings, wooden frame

work shall be provided within the opening and crossing of ducts provided with heavy flanged collars

on each side of the wooden frame work, so that duct crossing is made leak - proof.

All ducts shall be totally free from vibration under all conditions of operation. Wherever duct work is

connected to fans / air handling units or blower coil units that may cause vibrations in the ducts, ducts

shall be provided with two flexible connections, located close to the unit, in mutually perpendicular

directions, flexible heavy canvas sleeve at least 10 cm long securely bonded and bolted on both

sides. Sleeve shall be made smooth and the connecting ductwork rigidly held by independent

supports on both ends. The flexible connection shall be suitable for pressures at the point of

installation and shall be of approved make.

All dampers shall be louver dampers of robust construction and tight fitting. The design, method of

handling, and control shall be suitable for the location and the service required.

Dampers shall be provided with suitable links, levers, and quadrants as required for their proper

operation, control or setting devices shall be made robust, easily operable and accessible through

suitable access doors in the ducts. Every damper shall have an indicating device clearly showing the

damper position at all the times.

Dampers shall be placed in ducts at every branch supply or return air duct connection, whether or not

indicated on the drawings, for the proper volume control and balancing of the system.

6.0 SUPPLY AND RETURN AIR DIFFUSERS:

Supply and return air diffusers shall be of approved make as shown on the drawings and/or indicated

in the Bill of quantities.

Round or Rectangular Diffuser: Shall be anodized Aluminum section construction,

square,rectangular, or round diffusers with flush fixed pattern. Diffusers for different spaces shall be

selected in consultation with site engineer. Supply air diffusers may be equipped with fixed air

distribution grids, removable key operated volume control dampers, and anti-smudge rings as required

in specific applications, all as per requirements of Bill of quantities.

Linear Diffuser: Shall be anodized Aluminum section construction, one or two-way blow

lineardiffusers. Supply air diffusers shall be provided with volume control / balancing dampers within

the supply air collar. Diffusers for different spaces shall be selected in consultation with site engineer

and provided as per requirement of Bill of quantities. All linear / square / round diffusers shall have

volume control dampers of MS construction.

7.0 METHOD OF MEASUREMENTS FOR AIR DISTRIBUTION SYSTEM

Sheet Metal work:

Duct Length shall be measured along the centre line from flange face to face unless otherwise stated.

Ductwork shall be measured on the basis of external surface area (length as measured above,

multiply by duct perimeter) of ducts including the joints for each duct section. Duct measurement shall

be taken before application of the insulation. For taper section average perimeter shall be used for

measurement. For special pieces like bends, reducers, branches, and collars, mode of measurement

shall be identical to as described above using the length along the centre line. The quoted unit rate for

external surface of ducts shall include all wastage allowances, flanges and gaskets for joints, nuts and

bolts, hangers and angles, and angles/flats with double nuts for supports, felt strip between duct and

support, vibration isolation, inspection chamber / access panel, splitter damper with quadrant and lever

for position indication, turning vanes, straightening vanes, and all other accessories required to

complete the duct installation as per the specifications. These accessories shall not be separately

measured nor paid for.

Duct Accessories: Shall be measured by the cross section area perpendicular to air flow.

Grilles and diffusers:

Width multiplied by height, excluding flanges, volume control dampers shall form part of the unit rate

for registers and shall not be separately accounted.

Diffusers: Cross-section area for airflow at discharge/capture area, excluding flanges. Volume control

dampers shall form part of unit rate for supply air diffusers and shall not be separately accounted.

Linear Diffusers: Shall be measured by linear measurements only not by cross sectional areas, and

shall exclude flanges for mounting of linear diffusers. The supply air plenum for linear diffusers shall be

measured with ducting as described earlier.

Fire Damper: Shall be measured by their cross sectional area perpendicular to the direction of airflow.

Quoted rates shall include the necessary collars, and flanges for mounting, inspection pieces with

access door, solenoid valves etc. No special allowances shall be payable for extension of cross

section outside the air stream.

Flexible connection: Shall be measured by their cross sectional area perpendicular to the direction of

airflow. Quoted rates shall include the necessary mounting arrangement, flanges, nuts and bolts and

treated-for-fire requisite length of canvas cloth.

8.0 TESTING & BALANCING:

After the installation of the entire air distribution system is completed in all respects, all ducts shall be

tested for air leaks by visual inspection.

The entire air distribution system shall be balanced using anemometer. Measured air quantities at fan

discharge and at various outlets shall be identical to or less than 5 % in excess of those specified and

quoted. Branch duct adjustments shall be permanently marked after air balancing is completed so that

these can be restored to their correct position if disturbed at any time. Complete air balance report

shall be submitted for scrutiny and approval, and four copies of the approved balance report shall be

submitted along with the completion documents.

9.0 INSULATION:

The scope of this section comprises the supply and fixing of insulation conforming to these

specifications and in accordance with requirement of Bill of quantities.

Insulation material shall be EPDM – Class I

EPDM Insulation material shall have anti-microbial product, which is EPA approved, as an integral part

of insulation that cannot be washed off or worn off, which does not allow the microbes to function, grow

and reproduce. Microbiological growth on insulation surface should confirm to following standards:

Mould Growth – UL 181; Fungi Resistance – ASTM G21/C1 338 and Bacterial resistance – ASTM G

22. Density of Material shall be between 40 to 60 Kg/m3.

Thermal conductivity of Elastomeric EPDM shall not exceed 0.033 W/m K at an average temperature

of 0 C. The insulation shall have fire performance such that it passes Class 1 as per BS476 Part 7 for

surface spread of flame as per BS 476 and also pass Fire Propagation requirement as per BS476 Part

6 to meet the Class ‘I’ Fire category as per 1991 Building Regulations (England & Wales) and the

Building Standards (Scotland) Regulations 1990. Water vapour permeability shall not exceed 1.74 x

10 Kg/m.s.Pa, i.e. Moisture Diffusion Resistance Factor or ‘µ’ value should be minimum

Thickness of insulation shall be as specified for particular application or as specified in Bill of

quantities. Samples of insulation material shall be submitted for approval and shall be tested for

thermal conductivity values. Adhesive used for setting insulation shall be cold setting compound non-

flammable, vapor proof adhesive, shalimar CPRX compound or equivalent approved make.

DUCT INSULATION:

Duct acoustic lining:

Internal Acoustic lining for ducting is proposed (discharge duct) with 19 mm ( Or Specified Thickness )

thick Arma sound material.

Acoustic duct lining shall be applied inside the duct for a minimum distance of 3 meter or as shown in

the drawing from the outlet of air handling units or as specified in drawings or as indicated in Bill of

quantities. Acoustical duct lining shall be applied as follows:

(i) The inside surface of the duct shall be cleaned and covered with cold setting adhesive

(ii) Depending on size of duct fit min. 2 or more rows of insulation fixing pins to each face of duct at

every 300 mm center distance. Pins shall be self-adhesive, bond on type.

Carefully position insulation over the pins, pressing firmly so that pins penetrate through the

insulation. Fit spring clip or lock washer over pins pushing them down until they are tight against

insulation. Snip off any excess shank from pin. Seal all joints and openings with self adhesive

(iii) Depending on size of duct fit min. 2 or more rows of Mechanical fasteners (G.I Bolts) of sufficient

length to each face of duct at every 300 mm center distance. Pins can be self adhesive type,

Carefully position insulation over the bolts, pressing firmly so that bolts penetrate through the

insulation. Fit G.I nut over the bolts pushing them down until they are tight against insulation.

Snip off any excess shank from bolt. seal all joints and openings with self adhesive tape.

UNDER DECK INSULATION:

Thickness & specs with 19 mm Nitrile Rubber Silver White Finish flexible cladding Condition.

(a) Insulation Material TechnicalSpecification–Class O Nitrile:

• Insulation material shall be Closed Cell Elastomeric Nitrile Rubber

 Thermal conductivity of elastomeric nitrile rubber shall not exceed 0.035W/(m.K)at an average

temperature of 0°C

 The insulation shall have fire performance such that it passes Class 1 as per BS476

 Part7 for surface spread of flame, also pass Fire Propagation requirement as per BS476Part6 to

meet the Class‘O’ Fire category requirement as per 1991 Building Regulations (England & Wales)

and the Building Standards (Scotland) Regulations

 Material shall be FM (FactoryMutual),USA approved.

 Unlike other generic materials it should be self extinguishing, does not dripand does not spread

 Moisture Diffusion Resistance Factor or‘µ’value shall be minimum7,000 for the insulation material

without any outcovering.

(b) Technical Details for composite film of metallic appearance with Silver White finish for outer covering:

It shall be a multilayer laminate of aluminum with coating for UV protection and polymer backing. It

should provide mechanical resistance with excellent aesthetic looks. It should be Class“1”rated with

surface spread of flame tested according to BS476Part7 and Class“O”rated as per the Fire

Propagation tested according to BS476Part6.

Application: On outdoor applications, joints along them at erial length shall be installed facing

downward. The joints shall be secured with plastic rivet sintheover lap area, installed every 200mm

along them at erial length. Manufacturer recommended adhesive can be used for flat sheets, or

where restricted access prevents use of rivets. All joints and overlaps must be finished with

manufacturer recommended Tapes.

 Temperature Range:-25°Cto+75°C

 Color and Finish:Silver, Bright Metallic Finish

 Resistance to mechanical impact:>200N as per ASTMD4833-07

 UV Resistance:Excellent as per ASTMG26A, ISO4892-2 and JISK7350-2

 Tensile Strength:>50MPa as per ENISO527-1,ENISO527-3

 Puncture Resistance: >200N as per ASTMD4833-07

Tenderer : Addl. Chief Eng. ( Electrical)

Name : Ahmedabad Municipal Corporation

Company’s seal :

APPROVED MAKE LIST

DETAILS OF MATERIAL /

SR. APPROVED MANUFACTURERS NAME

O-GENERAL / MITSUBISHI ELECTRIC(Akabishi)/

1 Ductable A.C. UNIT MITSUBISHI HEAVY DUTY.

O-GENERAL / MITSUBISHI ELECTRIC/ MITSUBISHI

2 Split A.C. HEAVY DUTY.

O-GENERAL / MITSUBISHI ELECTRIC/ MITSUBISHI

3 Cassette/Tower A.C. UNIT HEAVY DUTY.

O-GENERAL / MITSUBISHI ELECTRIC/ MITSUBISHI

4 Package A.C HEAVY DUTY Or Equivalent.

5 GI DUCTING SAIL / TATA / JINDAL

GRILLES / DIFFUSERS /

6 DAMPERS CARRYAIRE / DYNACRAFT / RAVISTAR

7 COPPER PIPE RAJCO / MANDEV / TOTALINE

8 EXPANDED POLYSTYRENE LLOYDS INSULATION/COOLINE/BEARDSELL

EXTRUDED POLY STYRENE

9 BOARD OWENS CRONING / SUPREME INSUBOARD

10 FIBERGLASS OWENS CRONING / TWIGA

11 CROSS LINKED POLYMER PERAMOUNT / TROSSLIN / SUPREME

12 NITRILE RUBBER AEROFLEX / K FLEX / ARMAFLEX

13 EPDM RUBBER ARMACELL/ AROFLEX / ARMAFLEX

STARBOND CANVASS

14 COATING PARAMOUNT

15 DRAIN PIPE / PVC PIPE FINOLEX / SUPREME / ASTRAL

16 CABLES FINOLEX / RR CABLE / HEAVELLS / KEI / TORRENT

17 GI PIPE TATA/ JINDAL

18 JET NOZZLE SYSTEM AIR/ DYNACRAFT

19 MCB/MCCB L & T / SCHNEIDER / SIEMENS/LEGRAND/ABB

Aluminium Composite Panel ALEX/TIMEX/PRASO

NOTE:- IF ANY ITEMS NOT IN APPROVED MAKE LIST,VENDER MUST HAVE

AUTHORISED BY CONSULTANT/AMC OFFICIALS.

Signature of Tenderer : Addl. Chief Engineer (Electrical)

Company’s seal : Ahmedabad Municipal Corporation:

EARNEST MONEY DEPOSIT / SECURITY DEPOSIT

In consideration of the Ahmedabad Municipal Corporation of the city of Ahmedabad

(hereinafter to as the corporation) having agreed to exempt

______________________________________ (hereinafter referred to as "the said Contract")

from the demand of earnest money / security deposit in cash for the due fulfillment of the

terms and conditions of the agreement made between the AMC- and the said tenderer on

(hereinafter referred to us "the said agreement") on production of Bank Guarantee for

(hereinafter referred to as "Bank") do hereby undertake to pay to the AMC as a amount not

exceeding Rs. _____________________________ Rupees

the demand from AMC.

Any such demand on the bank shall be conclusive as regards as amount due and payable by the

bank under this guarantee. However, liability of the bank under this agreement shall restrict to

as amount not exceeding Rs. ___________________________ Rupees

We the bank further agree that the guarantee herein contain shall remain in full force and

effect during the period that would be mentioned in the tender and that it shall continue to be

enforceable till all the dues of the Corporation under or virtue of the said agreement have

been paid and its claim satisfied or discharged and till a certificate to the effect has been

received by the bank from the Corporation. However, unless the demand of claim under the

guarantee is made to the bank in writing on or before the _____________________ (specify

the date) the bank shall be discharged from all liabilities under this guarantee.

With the bank further with AMC shall have fullest liberty, without the concert of the bank

without effecting in any manner it obligations herein under to vary any of the terms and

conditions of the said agreement or extend time for validity by the said tender from time to

time or to postpone for any time or from time to time any of the powers exercisable by the

AMC /AMC-MET against the said Contractor and to forebear to enforced any of the terms and

conditions relating to the said agreement and the bank shall not be relieved from liability by

reason of any such variation, or extension granted to the contractor for any forbearance, at

Contractor or by any such matter or thing whatsoever which under the law relating to sureties

would, but this provision, have the effect of so relieving the Bank.

undertake not to revoke the Guarantee during currency except with the previous concert of

the AMC in writing.

Principal (Contractor)

Contract No. End date of Contract