Op and comp mtce of microprocessor Aircooled chilled water type HVAC machines for 1,2,4,5,9,10,11,12,13 Fl at Sanchar Bhawan ND.SH Removal of Defects of HVAC equipments at the risk and cost of MS Reliable Air Conditioning Engineers ND

Replacement of 11TR hermetically sealed scroll compressor with new one M/s Danfoss make complete with all accessories such as valves. etc as reqd.

Replacement of following items in the existing 3x11TRx3Nos, 4x11/12TRx5Nos chiller units, welding, gasket packing ,nut bolts etc. complete as required.

Valve 1-3/8" GBC type

valve 7/8" GBC type

valve 5/8" GBC type

Brass MPT safety valve size 5/8"

MS Accumulator suitable for 11 TR compressor for R-22 refrigerant gas

Fixed type LP switch

fixed type HP switch

Thermostatic expansion valve (Danfoss/Sporlon/Emerson/Alco)

Solid core liquid line filter drier (Danfoss/Sporlon/Emerson/Alco)

Moliculler solid core liquid line cartage (Danfoss/Sporlon/ Emerson/Alco)

P/F 7/8" size copper piping for discharge /liquid line and 1-3/8",5/8" size copper piping for suction line with modification, connecting compressor, expansion valve accumulator, chiller inlet ,outlet connections, with all copper accessories etc. complete as required 29/33 TR having 3 circuits in each plant.

Leakage testing repairing of tandem double compressor two Nos. system with chiller unit shell and tube type 4 Nos. condenser coils ,flushing with N2 gas including ,packing gasket, replace of nut bolts, insulation of both covers and complete shell etc. as required (4x11/12 TR)

Supply and charging of refrigerant gas R-22 in the leakage tested and pressure tested circuit including vacumizing and testing etc. complete as required (11/12 TR compressor circuit)

Supply , charging and topping of refrigeration lubricating oil for compressor etc. complete as required upto remarked level (for 11/12 TR compressor )

Repairing, rewinding of up to 2HP specially designed 4 legs bracket condenser fan motor of 4x11 TR ,3x11TR chiller unit with super enamelled copper winding wire , varnishing ,baking including dismantling and refixing, replacement of eroded rubber packing nut bolts, bearing, seal etc. complete as required

Providing of dynamically balanced aluminium condenser fan blade suitable for Voltas 33/44 TR air cooled chiller unit (blade size 31-1/2")

Replacement of defective microprocessor based controller suitable for 33TR/44TR aircooled condenser, water chiller with safety controls lp/hp, chw flow, compressor trip, water temperature, time delay, sequence as required capacity, compressor runtime equally, temperature controller etc. complete as required (softhard/smart/ss make)

Replacement of defective microprocessor based micro 3 mpd 5-30Amp inbuilt CT suitable for 33TR/44TR aircooled condenser ,water chiller with over current tripping etc. complete as required (softhard/smart/ss make)

Replacement of defective microprocessor based micro 2 mpd 5-30Amp inbuilt CT suitable for 33TR/44TR aircooled condenser, water chiller with over current tripping, voltage sensing etc. complete as required (softhard/smart/ss make)

Replacement of defective micro m 2 pd -WOD Amp range 1 Amp to 10 Amp suitable for 33TR/44TR aircooled condenser, water chiller with over current tripping, etc. complete as required (softhard/smart/ss make)

Replacement of defective micro mpd -WOD Amp range 1 Amp to 10 Amp suitable for 33TR/44TR aircooled condenser, water chiller with over current tripping, etc. complete as required (softhard/smart/ss make)

Replacement of faulty electrical accessories in electrical panels and chiller control panel ,testing etc. complete as required

Power contactor 12 amp with NO-NC contact

Power contactor 70 amp with NO-NC contact

Electronic star delta timer

Single phase preventer

Remarks: 1. The work to be carried out on holidays/weekends / nights only without disturbing the functioning of Air Conditioning System after taking prior shutdown & the work shall be carried out in coordination with Agency doing Comp. Mtc. Suitable penalty shall be imposed for Non-functioning of AC plant due to this work and contract may be terminated at Risk & Cost. Decision of Engineer in Charge will be final. The system should be available in good working condition on the next working day. 2. After installation, testing & commissioning the System is to be handed over in good working condition to the BSNL/Agency. 3. All the installed material/equipment shall be warranted for a period of one year from the date of completion of the work. 4. Replacement, Servicing & Scrap/ dismantle items shall be the property of Department. The rate may be quoted accordingly.

Note:- 1. 1. The Agency has to submit police verification record & ID proof of each operator. 2. The firm shall provide each operator with working cell phone. 3. The operators may be deputed for duty as per instruction of concerned SDE (E)/JTO (E). 4. Penalty shall be imposed in case of absence of any operator as per T & C of contract. 5. The GST / other Input Tax Credit (ITC) taxes shall be quoted by the firm as applicable as per latest amendments of GST Rules. 6. The contractor shall provide correct tariff heads & other details to enable BSNL claim Input Tax Credit. 7. Bidder must mandatorily quote for all GST components (CGST, SGST, and IGST) as required. 8. If annual maintenance contract charges are required to be quoted as per SOW, basic charges should be shown in column 4 & the Goods and Service Tax (GST) in column 7 to 12. 9. The bidder who submits the offer with concessional Goods and Service Tax (GST) shall submit the proof of applicable concessional GST. In case the Concessional GST is not creditable to BSNL it should be included in the price of the goods/services. 10. In case, dealer is registered under compounding scheme or any rule/notification where the BSNL is not eligible for input tax credit then the bidder should not disclose any amount in column 7 to12 & 14. 11. % age Rate of FF & Packing should be shown of basic unit price excluding all taxes & charges (i.e. as %age of col.4). 12. The FF & packing amount quoted shall not be subject to change after bid evaluation /ordering on account of change of copper, lead base price, change in duties & taxes of item etc. 13. Bidder must mandatorily mention HSN & SAC numbers. 14. Evaluation of bids: - The evaluation and comparison of responsive bids shall be done on the basis of Net cost to BSNL on the prices of the goods & Services (i.e. complete work) offered along with all applicable Taxes, packing Forwarding Freight & Insurance charges etc. exclusive of GST. Declaration by Bidder 1. We hereby declare that in quoting the above prices, we have taken into account the entire credit on inputs available under the GST Act introduced w.e.f. 1 July 2017 and further extended on more items till date. 2. We hereby certify that HSN/SAC shown in column 17 are correct & credit of GST for the amount shown in column 14 above are admissible as per GST Laws. Name of bidder: Seal of Company: GST No./(s)

Comfort systems