REPAIRS TO DUCTABLE PACKAGE TYPE AIR CONDITION OF VARIOUS CAPACITY IN INS RAJALI ARAKKONAM

Amount

Taking out existing old defected condenser fan motor, supply and fixing new condenser fan motor of the following capacity from outdoor unit from original location including testing complete al as specified and as directed.

3 Phase, 440V, 50Hz, 370W 930 RPM

Single Phase 230V, 50Hz 370W 940 RPM

Single Phase 230V, 50Hz 150W 920 RPM

Single Phase 230V, 50Hz 370W 900 RPM

Single Phase 230V, 50Hz 250W 920 RPM

3 Phase 440V, 50AC 370W 910 RPM

Taking down the unserviceable fan motor and dismantling including taking out damaged/burnt out winding from motor, cleaning the slots with CTC and rewinding the same with new super enamelled copper winding wire of existing guage and turns, oiling and greasing, assembling and installing back into position and testing for satisfactory running complete for the following capacities:-

3 Phase, 440V, 50Hz, 370W 930 RPM

Single Phase 230V, 50Hz 370W 940 RPM

Single Phase 230V, 50Hz 150W 920 RPM

Single Phase 230V, 50Hz 370W 900 RPM

Single Phase 230V, 50Hz 250W 920 RPM

3 Phase 440V, 50AC 370W 910 RPM

Material and labour for carry out the leak test on complete refrigeration system (Indoor & Out door unit) by charging the dry nitrogen gas & hold up to 24 hrs and rectifying the leakage, if any, by bracing /welding /replacing the "O" ring and other worn out parts of refrigerant line etc... including Vacuumising complete system of Package Type Ductable Air-Conditioning plant with double stage vaccum pump of 29 inches of mercury pressure after repairs/replacement of compressor or repair in Refrigeration System, including labour cost for charging the refrigerant Gas for following plants all as specified & directed:-

5.5 TR Capacity

8.5 TR Capacity

11.0 TR Capacity

17 TR Capacity

22 TR Capacity Note for Item Nos. 3 to 3.5 : i) New Refrigerant gas shall be measured and paid separately as supply only under relavant items. However the T & P and labour charge deemed to include the unit rate quoted above ii) Once the Gas charged in it, it should hold in the system minimum six months, if any gas leaked from the system the contractor has to charge the gas upto required level for free of cost and no extra cost on this account shall be claimed. iii) leakage test on each complete unit shall be measured separately

Supply only R-22 refrierant gas.

Material and labour for taking down the burnout / defective scroll type compressor from the outdoor unit and replace with factory made compressor of same type, make and model including necessary welding/brazing, refixing and charging with dry Nitrogen gas, pressure/leak testing, arresting the leakage by brazing and vacumming, gas charging , testing and commissioning complete all as specified and directed for the following capacity AC plants:- Make : Danfoss/copeland/as per existing make in plant.

5.5 TR Capacity

8.5 TR Capacity

11 TR Capacity Note for item Nos 5 to 5.3 : Leak test, Vaccumming & Refrigerant gas shall be measured under relavant items.

Material and labour for taking down the indoor unit blower motor from original location for overhauling including greasing, oiling and varnishing to the startor winding and painting with two coats of synthetic enamel paint and re-fixing to the original location including testing complete all as directed for the following capacity blower motors:- (Replacement of bearing will be messured and paid separately as supply only) however labour cost for replacement of bearing shall be deemed to be included in the quoted rate.

3.7KW/5HP, 3 Phase, 440V, 50Hz, 1440 RPM

2.2KW/ 3HP, 3 Phase, 440V, 50 Hz, 1430 RPM

1.5KW/ 2HP, 3 Phase, 440V, 50Hz, 1420 RPM

0.75HP/ 0.55KW, 3 Phase, 440V, 1440 RPM

1/2HP, Single Phase, 230V, 50 Hz, 930 RPM

1/2HP, Single Phase, 230V, 50 Hz, 950 RPM

450W, Single Phase 230V, 50 Hz, 1440 RPM

Taking down the unserviceable burnt out motor and dismantling including taking out damaged/burnt out winding from motor, cleaning the slots with CTC and rewinding the same with new super enamelled copper winding wire of existing guage and turns, oiling and greasing, assembling and installing back into position and testing for satisfactory running complete for the following capacities:-

3.7KW/5HP, 3 Phase, 440V, 50Hz, 1440 RPM

2.2KW/ 3HP, 3 Phase, 440V, 50 Hz, 1430 RPM

1.5KW/ 2HP, 3 Phase, 440V, 50Hz, 1420 RPM

0.75HP/ 0.55KW, 3 Phase, 440V, 1440 RPM

1/2HP, Single Phase, 230V, 50 Hz, 930 RPM

1/2HP, Single Phase, 230V, 50 Hz, 950 RPM

450W, Single Phase 230V, 50 Hz, 1440 RPM

450W, Single Phase 230V, 50 Hz, 1350 RPM

Taking out existing old defected indoor blower motor, supply and fixing new indoor blower motor of the following capacity from indoor unit from original location including testing complete al as specified and as directed.

3.7KW/5HP, 3 Phase, 440V, 50Hz, 1440 RPM

2.2KW/ 3HP, 3 Phase, 440V, 50 Hz, 1430 RPM

1.5KW/ 2HP, 3 Phase, 440V, 50Hz, 1420 RPM

0.75HP/ 0.55KW, 3 Phase, 440V, 1440 RPM

1/2HP, Single Phase, 230V, 50 Hz, 930 RPM

1/2HP, Single Phase, 230V, 50 Hz, 950 RPM

450W, Single Phase 230V, 50 Hz, 1440 RPM

450W, Single Phase 230V, 50 Hz, 1350 RPM

Material and labour for servicing and cleaning of out door condenser unit coil and indoor cooling coil by castic soda and flushing with plain water for removing complete trace of soda from the condenser coil and finally fixing in original position including testing all as specfied and directed for the following capacity AC plants:-

5.5 TR Capacity

8.5 TR Capacity

11 TR Capacity

17 TR Capacity

22 TR Capacity

Material and labour for servicing and cleaning of AHU and Duct unit (Supply air and return air ), removing any obstruction for AIR flow by air blower etc... and taking out all unwanted materials including cleaning Micro filter all as specified and directed by Engr -in-Charge for the following capacity AC plants :-

5.5 TR Capacity

8.5 TR Capacity

11 TR Capacity

17 TR Capacity

22 TR Capacity

Supply and Fix Drier/Starainer suitable for the following capacity package type AC unit including taking down old unserviceable one all as directed.

5.5 TR package type AC

8.5 TR package type AC

11 TR package type AC

17 TR package type AC

Supply and replace the package type AC Plant Micro processing uni;t PCB with Remote control set or for the folowing capacity plants all as specified & directed by Engineer-In-Charge. Make Blue star/Carrier.

5.5 TR Capacity

8.5 TR Capacity

11.0 TR Capacity

17.0 TR Capacity

22.0 TR Capacity

Material and labour for renewal of damaged insulation of refrigeration system of various unit with 6mm thick nitrol foam complete all as specified and directed

Material and labour for dismantling unserviceable/worntout "V" belts any type/model, Supply & fix new "V" belts for the following sizes:-

V- Belt of size A22

V- Belt of size A26

V- Belt of size A30

V- Belt of size A32

V- Belt of size A36

Supply and replace thermostatic expansion valve suitable for ductable split type AC upto 11 TR as per sample at site complete all as specified and directed. Make : Danfoss/ Sparton or equivalent as approved by GE.

Material and labour for replacement of 32 Amps, 3 pole power contactor complete all as specified and directed. Make : L&T/ Siemens/ ABB/Crompton Greaves/GE/Schneider as approved by GE.

Material and labour for replacement of 25 Amps, 3 pole power contactor complete all as specified and directed. Make : L&T/ Siemens/ ABB/Crompton Greaves/GE/Schneider as approved by GE.

Material and labour for replacement of 3 pole power contactor 32 Amps, NC & No along with overload relay and timer complete all as specified and directed. Make : L&T/ Siemens/ ABB/Crompton Greaves/GE/Schneider as approved by GE.

Material and labour for replacement of 3 pole power contactor 25 Amps, NC & No alongwith overload relay and timer complete all as specified and directed. Make : L&T/ Siemens/ ABB/Crompton Greaves/GE/Schneider as approved by GE.

Material and labour for attend the complaints on the package type AC Plant, control panel, Micro processing unit of the system of any make / capacity as and when required Note : Spares if required shall be measured and paid under relevant items as supply only / issued by the department.

Supply only 4 pole, MCCB, adjustable type of following capacity, 440V, 50 Hz with extended terminal & spreader link. Make : Legrand / L&T/Siemens/ABB/Schneider as approved by GE.

MCCB 4 pole 36 KA 250 Amps

MCCB 4 pole 36 KA 200 Amps

MCCB 4 pole 36 KA 160 Amps

MCCB 4 pole 16 KA 63 Amps

MCCB 4 pole 16 KA 40 Amps

Supply only copper lugs suitable for wire upto 16 sqmm.

Supply only single core PVC insulated (unsheathed) multo strand copper conductor FRLS cable of size 10 Sqmm 1100 Volts grade. Make : Finolex/Polycab/Plaza

All as per item above here-in-before but single core 6sqmm

All as per item above here-in-before but single core 4sqmm

Note for item no 21 to 23 : Labour cost is deemed to be included in item 18 Note for item No-20 (i) The complaint should be attended on same day (ii) Non rectification of complaints if any The contractor shall be leived penalty of Rs. 300 per day per complaint till complaint . Recovery will be effected from the RAR.

Supply and Replace Ammeter digital type (Three digit) with suitable CTs, 5A, Class I as per L&T Cat Part No WDS 301FCA00 or equivalent in Seimens/ABB/Automatic Electric/Meco.

Supply and Replace damaged PVC drain pipe 32mm dia

Supply and Replace single phase preventor, 415 V, 3 Phase. Make : Minjlec.Model : VSP-3 415 Volt AC, 3 Phyase, 50 Hz/L&T/Siemens.

Supply and Replace PVC connectors 8.5 to 20 Amps heavy duty 25mm

Supply and Replace Capacitor 10 Mfd/ 8 Mfd condenser fan motor all as specified and directed Make / Model as per existing type.

Supply and Replace Bi metal Relay with single phase protection for contactor mounting relay range 12.5 Amps to 20 Amps complete all as specified and directed Make : Siemens/ L&T/ BCH

Supply and Replace Bi metal Relay with single phase protection for contactor mounting relay range 32 Amps all as specified and directed Make : Siemens/ L&T/ BCH

Supply and Replace washable Air Filter of 5 Microns for the following size suitable for ductable package type AC plants all as specified & directed by Engr-in-Charge. Make : Blue star / Carrier or equivalent as approved by GE.

Air Filter of size 1'8" x 1'8" (at 561)

Air Filter of size 1'6" x 1'10" (at Comcen Area)

Air Filter of size 2'5" x 1'6" (at Logistic Section)

Air Filter of size 2' x 2' (at Ops Area, ATC Tower, ATH 1st floor, Area)

Air Filter of size 1'6" x 7' (at WTS, SE Section, RAQ)

Air Filter of size 1' x 4' (at Magazine Telephone Exchange Bldg)

Supply and Replace Fan Blade with complete assembly suitable for the following capacity plants all as specified & directed by Engr-in-Charge.

5.5 TR Capacity

8.5 TR Capacity

11 TR Capacity

17 TR Capacity

22 TR Capacity

Supply and fix in replacement canvas joint with opening and closing zip between AHU to Ducting joint complete all as specified and directed.

Supply and fix in replacement LP cut out switch complete all as specified and directed. Make : DAN FOSS/ IND FOSS

Supply and fix in replacement HP cut out switch complete all as specified and directed. Make : DAN FOSS/ IND FOSS

Supply only ball bearing of blower motor as per existing type/size for the package type AC plant complete all as specified and directed Make : SKF/NBC Note : Labour cost deemed to be included in rate quoted for Sl item No. 6 here-in-before

Material and Labour for taking down condenser fan motor of following capacity from outdoor unit original location for overhauling (i.e) greasing, oiling and varnishing to the starter , winding and replacing the worn out bearing, painting with two coats of synthetic enamel paint) and refixing to the original location including testing complete all as directed

(a) 3 phase,440V,50Hz,370W 930RPM

(b) Single phase 230V,50 Hz 370W 940RPM

(c) Single phase 230V, 50Hz 150W 920 RPM

(d) Single phase 230V, 50 Hz 370W 900 RPM

(e) Single phase 230V, 50Hz 250W 920 RPM

(f) 3 Phase 440V, 50 AC 370W 910RPM

C SRINIVASAN

KRISHNA ENTERPRISES