REPAIR AND MAINTENANCE OF WINDOW/SPLIT TYPE AC, WALK-IN-COOLER, WATER COOLER, REFRIGERATOR, DEEP FREEZER AND CERTAIN MISC WORKS AT BARRACKPORE AND KANCHRAPARA UNDER GE BARRACKPORE

Amount

Servicing & repairs to walk - in - cooler comprises with out door/indoor unit (Refrigeration Unit of Cap 10000/18000 BTU) of make BLUE STAR/ CARRIER by replacing the unserviceable parts of the machine including charging of Refrigerant gas, leak testing, Brazing the suction / discharge tubes where required and cleaning of Condensing unit, strainer, checking/repairs to sensor unit, HP/LP cut off valve for proper functioning and replace where required/ordered including testing complete all as specified and directed. (Note: Spare parts will be measured and paid separately)

Supply only following parts of walk-in-cooler of make Blue Star/Carrier complete all as specified and directed:- (Note: Items to be incorporated as required against Item No. 1.00 above):-

Electronic Temperature controller complete all as specified and directed. (Make: Blue Star/Kirloskar /Hitachi/Carrier as approved)

Evaporator fan motor 70Watt complete all as specified and directed. (Make Blue star/ Carrier/Kirloskar/Hitachi as approved)

Hermetically sealed compressor of capacity 1.5 TR single phase 230V AC, 50Hz complete all as specified and directed. (Make : Kirloskar /Hitachi/ Carrier /Blue star as approved)

Hermetically sealed compressor of capacity 2.5 TR, three phase, 415V AC, 50Hz complete all as specified and directed. (Make : Kirloskar /Hitachi/ Carrier /Blue star as approved)

Hermetically sealed compressor of capacity 3 TR, three phase, 415V AC, 50Hz complete all as specified and directed. (Make : Kirloskar /Hitachi/ Carrier /Blue star as approved)

Blower motor with blade of walk-in cooler of any make and capacity (as per sample) complete all as specified and directed. (Make : Usha/Siemens/Kaltron/Blue Star/Carrier as approved)

Taking out split type air conditioners indoor and out door units complete for repair and overhauling of capacity 1.5/2.0 TR of any make/type after disconnecting refrigerant pipes, drain pipe and electric connection, removing dust by using blower and cleaning the condenser coils and components by using water and caustic soda/cleaning chemical agents, checking and replacing the spares like relay assembly, relay contactor, capacitors, thermostat, fan motor with blades & blower fan motor with blades, unserviceable strainer air filters cum dryier etc after removing of old materials as required and also including connecting of refrigerant pipe, drain pipe and also charging of refrigerant gas and fixing back in its original location after satisfying testing complete all as specified and directed. (Note :- (i) Spare parts will be measured and paid separately as supply only. (ii) Refrigerant gas will be measured and paid separately as supply only.)

S&F for rotary type sealed compressor of split type air conditioner of 1.5 TR capacity including initial filling of refrigerant gas to the required pressure and testing after taking down and removing of old unserviceable compressor complete all as specified and directed. (Make : Voltas/ Hitachi/LG/Blue Star/ Kirloskar /Carrier/ Samsung as approved)

S&F for rotary type sealed compressor of split type air conditioner of 2.0 TR capacity including initial filling of refrigerant gas to the required pressure and testing after taking down and removing of old unserviceable compressor complete all as specified and directed. (Make : Voltas/ Hitachi/LG/Blue Star/ Kirloskar /Carrier/ Samsung as approved)

S&F for mild steel wall bracket (as per sample) suitable for fixing of out door unit of split type Air Conditioner with necessary nuts, bolts & washers and making good disturbed surfaces to match with the existing after taking down old unserviceable bracket complete all as specified and directed.

Leak testing the complete gas circulating system with dry nitrogen after evacuating and rectifying/arresting leakage by cutting, soldering, flaring work with nut, jointing of refrigerant tubing and charging of refrigerant gas to the required pressure in split type air conditioner upto 1.5TR/ 2 TR capacity and testing complete all as specified and directed. (Note: Refrigerant gas will be measured and paid separately as supply only.)

Supply only refrigerant gas (R-134a ) suitable for Refrigerators/water coolers/Deep freezers and cold room Air conditioners complete all as specified and directed. (Make: Mafron/Refron as approved )

Supply only refrigerant gas (R-22 ) suitable for split/window ) complete all as specified and directed. (Make: Mafron/Refron as approved )

S&F for magnetic contact relay assembly suitable for split type air conditioner 1.5/2.0 TR capacity (as per sample) complete all as specified and directed. (Make:Indfos/Whirlpool/Danfoss as approved)

S&F for fan motor with blade suitable for out door unit split type air conditioner up to 2 TR capacity (as per sample) complete all as specified and directed. (Make:Indfos/Whirlpool/Danfoss as approved)

S&F for relay contactor No. 1622 suitable for split type air conditioners upto 2 ton capacity complete all as specified and directed. (Make: LG/ Samsung/Carrier/Blue Star/ Hitachi/Voltas/ Kirloskar as approved)

S&F for blower fan motor with blade for out door unit including capacitor, single phase, 230V, 50Hz, ISI Marked for split type air conditioner upto 2 TR capacity (as per sample) complete all as specified and directed. (Make:Usha/Siemens/Keltron as approved)

S&F for starting capacitor of 80 to 100 mfd for split type air conditioners upto 2 TR capacity complete all as specified and directed. (Make: Concap/Keltron/Asian/Sarda/Siemens/ Tibcon/ Universal as approved)

S&F for running capacitor of 36 to 60 mfd for split type air conditioners upto 2 TR capacity complete all as specified and directed. (Make: Concap/Keltron/Asian/Sarda/Siemens/ Tibcon/ Universal as approved)

S&F for universal strainer air filters cum drier suitable for upto 2 TR capacity Split Air conditioners of any type (as per sample) complete all as specified and directed.

Repair to remote control unit (PCB board) after taking down from indoor unit of split type AC of 1.5/2.0 TR capacity and checking the electronic circuit and rectifying the defects by replacing the defective components with new ones and testing complete all as specified and directed.

S&F for swing motor of 1.5/2.0 TR capacity split type AC (as per sample) after removing of old unserviceable from AC complete all as specified and directed.

S&F for acoustic ('U' foam) padding with all packing material for refrigerant tubing from outdoor unit to indoor unit after removing of old unserviceable from AC complete all as specified and directed.

S&F for 15 mm dia PVC pipe, including bends, tees, elbows, sockets, saddles, etc for condensed water outlet as in repair complete all as specified and directed.

S&F for 0.064" to 0.080" (inch) dia capillary tube with strainer for the split type AC 1.5/2 TR capacity complete as in repair all as specified and directed.

S&F for copper tube of size 3/8" (inch) dia including necessary soldering, flaring work and jointing testing in between indoor to outdoor units of split type AC complete as in repair all as specified and directed.

All as per item No 22.00 here-in-before but size of copper tube 1/2" (inch) dia complete all as specified and directed.

All as per item No 22.00 here-in-before but size of copper tube 1/4" (inch) dia complete all as specified and directed.

S&F for PVC insulated, sheathed, multistranded, 1100V grade copper conductor cable of size 4 sqmm, 3 core after taking down existing unserviceable copper cable complete all as specified and directed.

Supply only hand remote control for split type AC of capacity 1.5/2 TR with 2 Nos batteries, 1.5 Volt of size 'AAA' (suitable for existing make) and testing complete as in repair all as specified and directed.

Dismantling of the split type / window type air conditioner of capacity 1.5/2.0 TR complete set from the existing position and shifting the same to the new altered location, complete indoor and outdoor units, refrigerant tubing, MS stand, stabilizer and cable etc and testing complete all as specified and directed.

S&F for 3 pin industrial plug top, ISI marked, suitable for industrial metal clad socket, single phase, 240 volts, 20 Amps including connection complete as in repair all as specified and directed. (Make:Legrand/L&T/Siemens as approved)

S&F for copper condenser coil assembly with all accessories for split type AC upto 2 TR capacity suitable to existing make/type (as per sample) and testing complete as in repair all as specified and directed.

S&F for copper cooling coil assembly with all accessories for split type AC upto 2 TR capacity suitable for existing make/type (as per sample) and testing complete as in repair all as specified and directed.

S&F for 2 to 3 way refrigerant control valve suitable for split type ACs of capacity upto 2 TR and testing complete as in repair all as specified and directed.

S&F for indoor unit of the split type air conditioner 1.5 TR capacity with all accessories such as installation plate with screws, blower motor, swing motor, filters etc duly pre-wired including connecting to existing refrigerant piping, electrical connections, drain pipe and testing etc complete as in repair all as specified and directed. (Make: Carrier/LG/Hitachi/Blue star/ Voltas/ Kirloskar/ Samsung as approved)

S&F for outdoor unit of split type air conditioner 1.5 TR capacity, with all accessories such as hermetically sealed compressor, condenser unit, capacitors, relays, fan motor, duly prewired including connecting to existing refrigerant gas piping, electrical connections and testing etc complete as in repair all as specified and directed. (Make: Carrier/LG/Hitachi/Blue star/Voltas/Kirloskar/ Samsung as approved)

Supply only capacitor 4 mfd complete all as specified and directed. (Make:Asian/Sarda/Epcos/Universal/Tibcon as approved)

Supply only capacitor 6 mfd complete all as specified and directed. (Make:Asian/Sarda/Epcos/Universal/Tibcon as approved)

S&F for outer casing with base tray sheet made out of GI sheet suitable to the window type air conditioner of capacity upto 2 TR of any type/ make (as per sample) complete all as specified and directed.

Leak testing the complete gas circulating system with dry nitrogen after evacuating and rectifying/arresting leakage by cutting, soldering, flaring work with nut, jointing of refrigerant tubing and charging of refrigerant gas to the required pressure in window type air conditioner upto 2 TR capacity and testing complete all as specified and directed. (Note: Refrigerant gas will be measured and paid separately as supply only.)

S&F for over load protector switch suitable for window type air conditioners of capacity upto 2 TR as in repair complete all as specified and directed. (Make : Usha/Shriram/Sarda/Universal as approved)

S&F for rotary type sealed compressor of window type air conditioner of 1.5 TR capacity including initial filling of refrigerant gas to the required pressure and testing after taking down and removing of old unserviceable compressor complete all as specified and directed. (Make : Voltas/Hitachi/LG/Blue Star/Carrier/Kriloskar/ Samsung as approved)

S&F for rotary type sealed compressor of window type air conditioner of 2.0 TR capacity including initial filling of refrigerant gas to the required pressure and testing after taking down and removing of old unserviceable compressor complete all as specified and directed. (Make : Voltas/Hitachi/LG/Blue Star/Carrier/Kriloskar/ Samsung as approved)

S&F for starting capacitor of 80 to 100 mfd & 100 to 120 mfd for window type AC complete all as specified and directed. (Make:Concap/Keltron/Asian/Sarda/Siemens/Tibcon /Universal as approved)

S&F for running capacitor of 45mfd/50mfd /60 mfd for window type AC complete all as specified and directed. (Make:Concap/Keltron/Asian/Sarda/Siemens/Tibcon /Universal as approved)

S&F for blower fan motor with blade including capacitor, single phase, 230V, 50Hz for window type air conditioner upto 2 TR capacity complete all as specified and directed. (Make: Usha/Siemens/Keltron as approved)

S&F for fan motor with blade suitable for window type air conditioner up to 2 TR capacity (as per sample) completeall as specified and directed. (Make:Indfos/Wirlpool/Danfoss as approved)

S&F for relay contactor suitable for window type air conditioners upto 2 TR capacity complete all as specified and directed. (Make: LG/Samsung/Carrier/Blue Star/Hitachi/Voltas/ Kirlosker as approved)

S&F for relay contactor No. 1622 suitable for window type air conditioners upto 2 TR capacity complete all as specified and directed. (Make: LG/Samsung/Carrier/Blue Star/Hitachi/Voltas/ Kirlosker as approved)

Repair to remote control unit (PCB board) after taking down from window type AC of 1.5/2.0 TR capacity (as per sample) and checking the electronic circuit and rectifying the defects by replacing the defective components with new ones and testing complete all as specified and directed.

S&F for thermostat switch for split type/window type AC of any type make upto 2 TR capacity complete all as specified and directed. (Make: Indofos/Ranutral/Whirlpool/Danfoss as approved)

Supply only contactor, AC, 230 volts ,50Hz, suitable for Window ACs upto 2.00 TR capacity (as per sample) complete all as specified and directed. (Make: Havells/Siemens/L&T/C&S/ABB as approved)

S&F for plastic or acrylic front side grill cover for window type AC upto 2.0 ton capacity of various makes (as per sample) as in repair complete all as specified and directed.

S&F for copper condenser coil assembly with all accessories for window type air conditioner upto 2 TR capacity (as per sample) suitable for existing make/type and testing as in repair complete all as specified and directed.

S&F for copper cooling coil assembly with all accessories for window type air conditioner upto 2 TR capacity (as per sample) suitable for existing make/type and testing as in repairs complete all as specified and directed.

M&L for two coats of synthetic enamel paint over one coat of red oxide primer by spray painting with spray gun to window type air conditioner of any type /make after removal of existing treatment and preparation of surfaces and including removing dents etc complete all as specified and directed.

Taking out water cooler for servicing and overhauling 40/80 ltrs, 40/120 ltrs and 40/160 ltrs capacity of any make/type after disconnecting of electric connection, removing dust by using blower and cleaning all the components by using water and caustic soda, checking and replacing the spares like relay, capacitors, thermostat, PVC outlet drain pipe, push cock/lift cock, float valves, blower fan motor with blade, fan motor with blade etc and also including gasket, charging of refrigerant gas and testing and fixing back in its original location complete all as specified and directed. NOTE: (i) Spare parts will be measured and paid separately as supply only. (ii) Refrigerant gas will be measured and paid separately as supply only.

S&F for corroded portion of the water cooler of 40/80 ltrs, 40/120 ltrs and 40/160 ltrs capacity of any type/ make and providing the same gauge sheet in corroded portion by bending/welding, soldering and painting with two coats of synthetic enamel paint over a coat of red oxide primer, the replaced portion will be match with existing colour and providing base support legs etc as in repair complete all as specified and directed.

M&L for two coats of synthetic enamel paint over one coat of red oxide primer by spray painting with spray gun to water coolers of 40/80 ltrs, 40/120 ltrs and 40/160 ltrs capacity of any type /make after removal of existing treatment and preparation of surfaces including removing dents etc complete all as specified and directed.

S&F for rotary type sealed compressor for water cooler 40/80 Litres capacity including initial filling of refrigerant gas to the required pressure and testing after taking down and removing old unserviceable compressor complete all as specified and directed. (Make: Voltas/Blue Star/Kirloskar /Usha as approved)

S&F for rotary type sealed compressor for water cooler 40/120 Litres capacity including initial filling of refrigerant gas to the required pressure and testing after taking down and removing old unserviceable compressor complete all as specified and directed. (Make: Voltas/Blue Star/Kirloskar /Usha as approved)

S&F for rotary type sealed compressor for water cooler 40/160 Litres capacity including initial filling of refrigerant gas to the required pressure and testing after taking down and removing old unserviceable compressor complete all as specified and directed. (Make: Voltas/Blue Star/Kirloskar /Usha as approved)

Leak testing complete by gas circulating system with dry nitrogen after evacuate and rectifying/arresting leakage by cutting, soldering, jointing of refrigerant tubing and charging of refrigerant gas to the required pressure in water cooler 40/80 ltrs, 40/120 ltrs and 40/160 ltrs cooling capacity and testing complete all as specified and directed. (NOTE: Refrigerant gas will be measured and paid separtely as supply only)

S&F for blower fan motor with blade including capacitor for water cooler upto 180 Ltrs capacity (as per sample) and testing complete all as specified and directed.

Supply only capacitor of 10-20 mfd complete all as specified and directed. (Make:Asian/Epcos/Universal/Tibcon/Sarda as approved)

S&F for 15 mm bore PVC out let drain connecting pipe with brass nuts and washers of length not exceeding 60 cm long complete all as specified and directed.

S&F for 15mm bore push cock / lifting cock of brass chromium plated self closing type with back plate for water cooler of any capacity as in repair complete all as specified and directed.

S&F for 15 mm dia float valve assembly with PVC body, polythene float for water cooler as in repair complete all as specified and directed.

S&F for copper condenser coil assembly with all accessories for water cooler any type 40/80 to 100/160ltr capacity (as per sample) as in repair complete all as specified and directed.

S&F for fan motor with blade, single phase, 230V, 50Hz, ISI Marked for water coolers complete all as specified and directed. (Make:Usha/Siemens/Keltron as approved)

S&F for relay assembly suitable for water coolers of 20/40 to 100/160ltr capacity (as per sample) complete all as specified and directed. (Make:Indfos/Whirlpool/Danfoss as approved)

S&F for thermostat switch for water coolers of any type complete all as secified and directed. (Make:Indofos/Ranutral/Whirlpool/Danfoss as approved)

S&F for 15mm dia pillar taps, cast copper alloy with capstan heads, chromium plated, fancy type, screwed down high pressure, with letter 'HOT' or 'COLD' with long screwed shanks & fly nuts, screwed for iron pipes as in repair complete all as specified and directed.

S&F for 1/2" (inch) dia copper tube complete in water cooler upto 40 to 160 litre capacity as in repair complete all as specified and directed

S&F for 3/8" (inch) dia copper tube complete in water cooler upto 40 to 160 litre capacity as in repair complete all as specified and directed.

S&F for 15/16 Amps, three pin plug top including indication lamp complete all as specified and directed. (Make:Legrand/L&T/Siemens as approved)

Taking out Refrigerator for servicing and overhauling from 165 litre to 352 ltr capacity (single door/Double door type) of any make/type after disconnecting of electric connection and cleaning all the components, checking and replacing the unserviceable spares like relay assembly, capacitors, thermostat, fan motor with blade, heating elements etc and also including oiling, greasing, charging of refrigerant gas and fixing back in its original location after testing complete all as specified and directed. (Note :- (i) Spares will be measured and paid separately as supply only items. (ii) Refrigerant gas will be measured and paid separately.)

Leak testing complete by gas circulating system with dry nitrogen, evacuating and rectifying/arresting leakage by cutting, soldering, jointing of refrigerant tubing and charging of refrigerant gas to required pressure in Refrigerator upto 352 ltr capacity and testing complete all as specified and directed. (Note: Refrigerant gas will be measured and paid separately as supply only)

S&F for rotary type sealed compressor of Refrigerator upto 185 litres capacity including initial filling of refrigerant gas to the required pressure and testing after taking down and removing old unserviceable compressor complete all as specified and directed. (Make: Voltas/Kelvinator/Kirloskar/Usha/Godrej/Samsung as approved )

S&F for rotary type sealed compressor of Refrigerator of 210 to 352 litres capacity including initial filling of refrigerant gas to the required pressure and testing after taking down and removing old unserviceable compressor complete all as specified and directed. (Make: Voltas/Kelvinator/Kirloskar/Usha/Godrej/Samsung as approved )

S&F for relay assembly suitable for refrigerators of any type/ capacity 165 to 352 litres (as per sample) complete all as specified and directed. (Make: Indofos/Whirlpool/Danfoss as approved)

S&F for bi-metal switch for refrigerators of any type/ capacity 165 to 352 litres as in repair complete all as specified and directed. (Make:- LG/samsung/Videocon/Godrej/Whirlpool as approved)

S&F for condenser coil assemble with all accessories suitable for refrigerators of any type/ capacity 165 to 352 litres (as per sample) as in repair complete all as specified and directed.

S&F for cooling coil assemble with all accessories suitable for refrigerators of any type/ capacity 165 to 352 litres (as per sample) as in repair complete all as specified and directed.

S&F for fan motor with blade suitable for refrigerators of any type/ capacity 165 to 352 litres (as per sample) complete all as specified and directed. (Make: Indofos/Whirlpool/Danfoss as approved)

S&F for metal refrigerator stand suitable for refrigerator of any type/capacity (as per sample) complete all as specified and directed.

S&F for capacitor of 6 to 10 mfd complete all as specified and directed. (Make:Asian/Epcos/Tibcon/Universal/Sarda as approved)

S&F for thermostat switch for refrigerators of any capacity/ any type complete all as specified and directed. (Make: Indofos/Ranutral/Whirlpool/Danfoss as approved)

S&F for heating element 20 to 40 watt for refrigerators of any capacity/ any type/ make (as per sample) complete all as specified and directed. (Make: Indofos/Ranutral/Whirlpool/Danfoss as approved)

S&F for copper tube of size 1/4" (inch) dia suitable for refrigerator of capacity upto 352 ltrs as in repair complete all as specified and directed.

S&F for 0.031" (inch) size capillary copper tube suitable for refrigerator of capacity upto 352 ltrs as in repair complete all as specified and directed.

S&F for acrylic chiller plastic tray for vegetables, side fixing trays, ice cube trays, (as per sample of set of all tray) as in repair complete all as specified and directed.

S&F for bulb suitable for refrigerator of existing type/make/capacity/size (as per sample) as in repair complete all as specified and directed.

S&F for blower fan motor with blade including capacitor for refrigerator upto 352 ltrs capacity, single phase, 230V AC 50 Hz for Deep Freeze of any make (as per sample) and testing complete all as specified and directed.

S&F for anti-bacterial gasket set for refrigerators door of any capacity/ any type/ make (as per sample) complete all as specified and directed.

Taking out Deep freezer for servicing and overhauling of 150 to 400 ltr capacity of any make/type after disconnecting of electric connection and cleaning all the components, checking and replacing the unserviceable spares like fan motor with blade, blower fan motor with blade, relay, capacitors, thermostat etc and also including oiling, greasing, charging of Refrigerant gas after vacuuming and making system leak proof. Brazing the suction / discharge tubes where required and cleaning of Condensing unit to achieve proper cooling effect. Checking of electronic circuit of machine and repair where necessary by replacing electronic parts and changing of wirings with proper size PVC insulated wires and fixing back in its original location after satisfying testing complete all as specified and directed. (Note :- (i) Spare parts will be measured and paid separately as supply only. (ii) Refrigerant gas will be measured and paid separately as supply only. )

Servicing and overhauling of Deep freezer unit of capacity 150 to 400 Ltr by cleaning condenser unit, fan motor with blade, Base plate complete testing for its proper working, achieving proper effects complete all as specified and directed .

S&F for thermostatic switch suitable for Deep freezer of capacity 150/400 Ltr complete all as specified and directed . (Make:Indfos/Danfoss/Ranutral/Whirlpool as approved)

S&F for relay suitable for Deep Freezer (as per sample) complete all as specified and directed . (Make: Indfos/Whirlpool/Danfoss as approved)

S&F for fan motor with blade, single phase, 230V AC 50 Hz for Deep Freezer of capacity 200/400 litres of any make (as per sample) complete all as specified and directed . (Make: Indfos/Whirlpool/Danfoss as approved)

S&F for rotary type sealed compressor for deep freezer 150 to 400 litre capacity including initial filling of refrigerant gas to the required pressure and testing after taking down removing old unserviceable compressor complete all as specified and directed . (Make: Voltas/Blue Star/Kirloskar/Kelvinator/Godrej/Usha as approved)

Leak testing the complete gas circulating system with dry nitrogen & evacuate and rectifying/arresting leakage by cutting, soldering, jointing of refrigerant tubing and charging of refrigerant gas to the required pressure in Deep freezer unit of capacity 150 ltr to 400 ltr capacity and testing complete all as specified and directed. (Note: Refrigerant gas will be measured and paid separately as supply only)

Supply and installation, commissioning voltage stabilizer of digital type for automatic operation, single phase naturally air cooled indoor type & designed for input variation between 170 v to 280 volts with output voltage stabilized at 230 volts with accuracy of +/- 2.5 % and of capacity 5.0 KVA (15amp) complete all as specified and directed. (Make : V-Guard Model No VS-500 or equivalent Model of Microtek make as approved)

Supply and installation, commissioning voltage stabilizer of digital type for automatic operation, three phase naturally air cooled indoor type & designed for input variation between 130 v to 300 volts with output voltage stabilized at 230 volts with accuracy of +/- 2.5 % and of capacity 5.0 KVA (15 Amp rated) complete all as specified and directed. (Make : V-Guard Model No VGB-500 digital or equivalent Model of Microtek as approved)

Servicing of split type & Window type AC of capacity 1.5/2.0 TR of any make by washing the outdoor unit condenser coil with soap water using jet gun followed with clean water using jet gun and indoor unit with the help of blower, wipe and clean the unit with dry cloth complete all as specified and directed .

Supply and charge refrigerant gas R-22 after and including vacuum the system after maintaining vacuum for 24 hours complete all as specified and directed. (Make:-Mafron/Refron as approved)

Supply and charge refrigerant gas 407C after and including vacuum the system after maintaining vacuum for 24 hours complete all as specified and directed. (Make:-Mafron/Refron as approved)

Supply and charge refrigerant gas R-134a after and including vacuum the system after maintaining vacuum for 24 hours complete all as specified and directed. (Make:-Mafron/Refron as approved)

M&L for fixing of AC rotary compressor for split AC of capacity 1.5 TR with and including brazing work etc with replacement of capillary, filter, pressure testing & establishing vacuum for 24 hours for dehydration after and including taking down old unserviceable compressor any type complete all as specified and directed. (Make : Voltas/ Hitachi/LG/Blue Star/ Kirloskar /Carrier/ Samsung as approved)

M&L for fixing of AC rotary compressor for split AC of capacity 2 TR with and including brazing work etc with replacement of capillary, filter, pressure testing & establishing vacuum for 24 hours for dehydration after and including taking down old unserviceable compressor any type complete all as specified and directed. (Make : Voltas/ Hitachi/LG/Blue Star/ Kirloskar /Carrier/ Samsung as approved)

M&L for fixing of AC rotary compressor for window AC of capacity 1.5 TR with and including brazing work etc with replacement of capillary, filter, pressure testing & establishing vacuum for 24 hours for dehydration after and including taking down old unserviceable compressor any type complete all as specified and directed. (Make : Voltas/ Hitachi/LG/Blue Star/ Kirloskar /Carrier/ Samsung as approved)

M&L for fixing of AC rotary compressor for window AC of capacity 2 TR with and including brazing work etc with replacement of capillary, filter, pressure testing & establishing vacuum for 24 hours for dehydration after and including taking down old unserviceable compressor any type complete all as specified and directed. (Make : Voltas/ Hitachi/LG/Blue Star/ Kirloskar /Carrier/ Samsung as approved)

S&F for starting capacitor of 80 to 100 mfd as per site requirement after and including taking down old unserviceable one complete all as specified and directed. (Make: Concap/Keltron/Asian/Sarda/Siemens/ Tibcon/ Universal as approved)

S&F for starting capacitor of 36 to 60 mfd as per site requirement after and including taking down old unserviceable one complete all as specified and directed. (Make: Concap/Keltron/Asian/Sarda/Siemens/ Tibcon/ Universal as approved)

Supply, installation including brazing, jointing copper tubing superior quality of dia 5/8”, thickness not less than 0.7 mm after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation including brazing, jointing copper tubing superior quality of dia 1/2”, thickness not less than 0.7 mm after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation including brazing, jointing copper tubing superior quality of dia 3/8”, thickness not less than 0.7 mm after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation including brazing, jointing copper tubing superior quality of dia 1/4”, thickness not less than 0.7 mm after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation and testing of fan motor with blade for split AC upto 2 TR after and including taking down old unserviceable one complete all as specified and directed. (Make: Indfos/Whirlpool/Danfoss as approved)

Supply, installation and testing of blower motor for split AC upto 2 TR after and including taking down old unserviceable one complete all as specified and directed. (Make:Usha/Siemens/Keltron as approved)

Supply, installation and testing of condensor coil assembly for split type AC upto 2 TR after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation and testing of condenser cooling coil assy for split type AC upto 2 TR after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation and testing of blower motor with blade for window AC upto 2 TR after and including taking down old unserviceable one complete all as specified and directed. (Make:Usha/Siemens/Keltron as approved)

Supply, installation and testing of blower motor for window AC upto 2 TR after and including taking down old unserviceable one complete all as specified and directed. (Make:Usha/Siemens/Keltron as approved)

Supply, installation and testing of contactor for window AC upto 2 TR after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation and testing of condenser coil for window AC upto 2 TR after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation and testing of condenser cooling coil for window AC upto 2 TR after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation and testing of blower fan motor for water cooler (40/80/60/120 Ltr) after and including taking down old unserviceable one complete all as specified and directed. (Make:Usha/Siemens/Keltron as approved)

Supply, installation and testing of fan motor with blade for water cooler after and including taking down old unserviceable one complete all as specified and directed. (Make:Indfos/Whirlpool/Danfoss as approved)

Supply, installation and testing of cooling coil for refrigerator upto 210 to 312 ltr after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation and testing of condenser coil for refrigerator upto 165 to 352 ltr after and including taking down old unserviceable one complete all as specified and directed.

Supply, installation and testing of fan motor with blade for refrigerator 165 to 352 ltr after and including taking down old unserviceable one complete all as specified and directed. (Make:Indfos/Whirlpool/Danfoss as approved)

S&F for 15mm dia heavy duty PVC flexible pipe threaded type with necessary jubilee clamps for water cooler/split ACs/Window AC drains after and including taking down old unserviceable one complete all as specified and directed.

M&L for repair of PCB of split type AC Cap 1.5/ 2 TR as per existing make and model complete all as specified and directed .

M&L as in replacement for new PCB of split type AC Cap 1.5/ 2 TR as per existing make and model complete all as specified and directed .

M&L for providing rubber foam heavy duty insulation tube over the existing copper tubing of any length at any location in replacement of worn out insulation including fixing with cable tie, clamping as required at site complete all as specified and directed .

S&F as in replacement of front grill of window type AC with air filter as per sample complete all as specified and directed. (Make-Voltas/LG as approved)

S&F as in replacement of air filters of split type AC of 1.5/2.0 TR capacity as per existing pattern, complete all as specified and directed .

S&F for indoor unit of the split type air conditioner 1.5 TR capacity and complete with all accessories such as installation plate with screws, blower motor, swing motor, filters etc duly prewired and including connecting of existing refrigerant pipe, electrical connections, drain pipe and testing etc after and including removing of old unserviceable indoor unit and deposited in MES store yard complete all as specified and directed. (Make: Carrier/LG/Hitachi/Blue star/Voltas/Kirloskar/ Samsung as approved)

S&F for outdoor unit of the split type air conditioner 1.5 TR capacity and complete with all accessories such as installation plate with screws, blower motor, swing motor, filters etc duly prewired and including connecting of existing refrigerant pipe, electrical connections, drain pipe and testing etc after and including removing of old unserviceable outdoor unit and deposited in MES store yard complete all as specified and directed. (Make: Carrier/LG/Hitachi/Blue star/Voltas/Kirloskar/ Samsung as approved)

Taking down defective /unserviceable water cooler (capacity 40/80 ltrs) compressor and replacement of same make in replacement, refixing including brazing work etc and replacement of capillary filter, pressure testing & establishing vacuumed for dehydration complete including charging of R22 gas as refrigerant complete all as specified and directed. Make- As per site requirement/as per existing make item

Taking down defective /unserviceable water cooler (capacity 60/120 ltrs) compressor and replacement of same make in replacement, refixing including brazing work etc and replacement of capillary filter, pressure testing & establishing vacuumed for dehydration complete including charging of R22 gas as refrigerant complete all as specified and directed. Make- As per site requirement/as per existing make item

Taking down defective /unserviceable Deep Freezer (upto capacity 425 ltrs) compressor and replacement of same make in replacement, refixing including brazing work etc and replacement of capillary filter including brazing work etc, pressure testing & establishing vacuume for dehydration complete including charging of R 134a refrigerant. Complete all as specified and directed. Make- As per site requirement/as per existing make item

Supply and installation, commissioning voltage stabilizer of digital type for automatic operation, single phase naturally air cooled indoor type & designed for input variation between 170 v to 280 volts with output voltage stabilized at 230 volts with accuracy of +/- 2.5 % and of capacity 5.0 KVA (15amp) complete all as specified and directed. (Make : V-Guard Model No VS-500 or equivalent Model of Microtek make as approved)

M&L for checking the leakage in both low and high side of the system by feeding dry nitrogen to maintain adequate pressure in the system, plugging the leaks including replacement of old teflon sealing and providing new teflon sealing to all refrigerant line valves like liquid lines valves/suction/ discharge valves of compressors, gland packages of all angle valves flaring of all connections framing welding etc for the AC plant of capacity 3 X 13 TR-Plant complete all as specified and directed

Servicing of Central type air conditioner plant of capacity 3x13 TR by replacing worn out gasket and parts, servicing to oil pump assembly, changing of compressor oil upto level, Charging of refrigerant to the system,making system in working condition, achieving proper cooling effect, rectify the other defects if any complete all as specified and directed . (NOTE: Existing refrigerant shall be taken out from the system, kept in cylinder and recharge on completion of cleaning of cell. Additional qty of Refrigerant if required shall be measured and paid separately.)

M&L for repair of AHU motor suitable for AC plants with capacity 3x13 TR by dismounting it from weather making unit of AHU replacement of Bush, bearing by opening nuts bolts and removing electrical connections of the motor, replacement of V type Belt with new belt, replacement of stator and rotor assembly winding of motor, replacement and alignment of shaft complete all as specified and directed .

M&L for fixing of 50 mm dia cast iron butterfly valve (wafer Type) without lugs, lever operated, SS 304 Disc, Nitrile /EPDM rubber lining test pressure PN-10/PN-16 after and including taking down existing unserviceable valve complete all as specified and as directed .

M&L for 50mm dia Y type strainer flanged type as per existing after and including taking down existing unserviceable valve complete all as specified and directed .

M&L for evacuation of gas from the system into the empty cylinder provided by department/pumping down to the system, descalling condenser unit of the AC plant of capacity 3x13 TR-Plant (3 nos condenser) after bypassing the cooling tower, pumps & supply and circulation of the descalling solution (ANTI SCALENE SCALE FOEE-100) with pump brushing the tubes and where required drilling the stubbon scalling without damaging the tube, replacement of deshed end gasket and unserviceable nuts and bolts assembling back complete testing and commissioning including removing air lock, recharging the gas taken out of the system complete all as specified and directed . Notes: (i) Descaling the pumps, nylon brush, acid including storage containers, drill and drill bits to be arranged by contractor and work including welding cost of the same deemed to be included in the quoted rate. (ii) Descaling shall be carried out by authorized firm dealing in cooling applications and firm which has fixed the central AC plant.

M&L for EWT/LWT sensor suitable for AFT tripping for AC plant of 2x13 AC plant after and including taking down existing unserviceable one complete all as specified and directed .

S&F for 80mm dia MS ERW pipe Heavy class with bend socket etc and applying two coats of synthetic enamel paint over a coat red oxide primer after and including taking down old existing unserviceable pipe complete all as specified and directed .

S&F for 65mm dia MS ERW pipe Heavy class with bend socket etc and applying two coats of synthetic enamel paint over a coat red oxide primer after and including taking down old existing unserviceable pipe complete all as specified and directed .

S&F for 50 mm dia MS ERW pipe Heavy class with bend socket etc and applying two coats of synthetic enamel paint over a coat red oxide primer after and including taking down old existing unserviceable pipe complete all as specified and directed .

S&F for V Belt B-108 after and including taking down old existing unserviceable one complete all as specified and directed . (Make : Fenner or equivalent as approved)

M&L for filter drier 3/8 inch, DML 163 compelte suitable for 13 TR AC plant after and including taking down old existing unserviceable one complete all as specified and directed . (Make- Danfoss or equivalent as approved)

M&L for expension valve thermostatic type suitable for 13 TR AC plant after and including taking down old existing unserviceable one complete all as specified and directed . (Make- Danfoss or equivalent as approved)

M&L for pressure switch MS 0.7 to 4 bar, of size 12.5cmx5cmx9cm after and including taking down old existing unserviceable one complete all as specified and directed . (Make- Danfoss or equivalent as approved)

S&F for power contactor 3 pole Type 1.5 ML AC 3 rating 25 A with auxiliary contact 2 NO + 2 NC after and including taking down old existing unserviceable one complete all as specified and directed . (Make- L&T Cat No - SS91851 or equivalent of Legrand as approved)

Supply, installation and testing cooling tower Induction Motor of Capacity 3 HP , 3 phase, 8 pole, 750 RPM, 415 Volts, 50 Hz with mounting flange and suitable size fan blade suitable for 30 TR cooling tower and installed the motor at its existing position and connected with the system including taking down old unserviceable CT motor complete all as specified and directed. (Make- Hindustan/Kirloskar as approved)

Supply only compressor oil complete all as specified and directed.

S&F for fan belt of AHU motor suitable for 3x20 TR AC Plant unit after and including taking down existing unserviceable one complete all as specified and directed.

S&F for runner bearing of blower motor(P207 or P206) after and including taking down existing unserviceable one complete all as specified and directed.

M&L for washing/cleaning of cooling coil externally with mild acid (or caustic soda hot water solution) followed by water jet including cleaning/washing of air filters and descaling of cooling coil of AHU, re-fixing and changing of V Belt both set with necessary fitting and T&P for mounting after and including opening the upper sheet and side sheet of AHU’s plant for access to cooling coil complete all as specified and directed. Note: Entire work is to be carried out by OEM i.e. Voltas for AC plant of capacity 3x13 TR-Plant .

S&F for europack cross flow cooling tower fill, PVC type, temperature withstand rating 55 degree centigrade, after and including removing the existing choked fills from 30 TR capacity cooling tower complete all as specified and directed.

Supply, fabrication, erection, commissioning and testing of iron removal filter with water softner of capacity 1 Cum per hour having the following details complete all as specified and directed :- a) Raw Water Quality: Iron (as Fe) : < 1 ppm, Total Hardness (as CaCO3) : < 400 ppm, Turbidity : < 5NTU, pH : 6. 5 to 8. 5 (b) Treated Water Quality (94-98% Reduction):Iron(as Fe) : ≤ 0. 03 ppm, Total Hardness (as CaCO3) : ≤ 40 ppm, Turbidity : ≤ 1 NTU, pH : 6. 5 to 8. 5, 1 HP Single phase feed pump for Required Feed Water Flow: Min. 2,000 LPH, Max. 3,000 LPH (c) IRON REMOVAL FILTER, Vessel Size: 14” x 65” Top Open, MOC: FRP, Make: Plastco-Tata/Winsia/Equiv., Multiport Valve: 25 NB (1”), Top Mount Filter, MOC: PP, Make: Initiative/UKL/Plastco Distribution System: Top & Bottom Strainer Vacuum Breaker: PP – 1 Set, Pressure Gage: 7 Kg/cm2 SS Liquid Fill Bottom Connection – 1 No, Media Volume: 100 Ltr, Media: MnO2 15 Ltr Anthracite 20 Ltr Activate Carbon 10 Ltr Treated Sand 30 ltr, Silax 25 Ltr, Gravels 70 Ltr, Pipes & Fittings: UPVC: 2 inch – 80 sch, Backwash & Rinse: 12 Hrs of Flow

(d) WATER SOFTENER Vessel Size: 14” x 65” Top Open, MOC: FRP, Make: Plastco-Tata/Winsia/Equiv., Multiport Valve: 25 NB (1”) Top Mount Softener, MOC: PP, Make: nitiative/UKL/Plastco, Distribution System: Top & Bottom Strainer Vacuum Breaker: PP – 1 Set, Pressure Gage: 7 Kg/cm2 SS Liquid Fill Bottom Connection – 1 No, Media Volume: 100 Ltr, Media: Cation Resin 100 Ltr, Pipes & Fittings: UPVC: 1 inch – 40 sch, Regeneration & Rinse: 12 Hrs of Flow, Brine Solution: 16 Kg Common Salt with 80 Ltr of Filtered water, Brine Tank: 200 Ltr PP

Taking out the old unserviceable motor of 2/3 HP capacity and rewinding of motor with same gauge with super enameled copper wire including cleaning of slots, separation of rotor and starter making insulation to all joint and replacement of the following items complete all as specified and directed :- (a) Ball bearing. Make: SKF-02 Nos, (b) Bush (c) Cooling fan - 01 No.

Supply, installation and testing of followings parts after opening of centrifugal pump of 2/3 HP capacity after and including taking down of old unserviceable one complete all as specified and directed:- (a) Gun metal impeller. -01 No (b) Gun metal bush -02 Nos (c) Ball bearing. Make: SKF - 01 No. (d) Oil seal -01 No. (e) Gland -01 Job

M&L for flapper for cooling tower of 30 TR capacity after and including taking down old existing unserviceable one complete all as specified and directed.

M/S D K Singha

REMCO

BANERJEE ENTERPRISE