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| 1 | Servicing and repairs to walk-in-cooler comprise with out door/indoor unit (refrigeration unit of Cap 10000-20000 BTU) of make BLUE STAR/ CARRIER, Cleaning of copper coil/pipe to be done with chemical followed by water jet. Labour charges for relaplacing the unserviceable parts of the machine including charging of Refrigerant gas, leak testing, brazing the suction/ discharge tubes where required and all strainer, Checking/repairs to sensor unit, HP/LP cut off valve for proper functioning is deemed to included in quoted rare.Note : (a) Small spares like nut, bolt, tape, gasket, copper nipple, copper fittings etc deemed to be included in quoted rate.(b)Major spares as mentioned bellow willl be measured separately.(c)One outdoor and one indoor makes a unit Loc. Base Hospital 7 unit, supply dept 1 unit. |
| 2 | Supply of following Parts of repair of Walk-in-Cooler as required against ser No 1 :-(a) Electronic Temperature controller |
| 3 | (b) Evaporator fan motor 70 Watt |
| 4 | (c) Contracotr 3 phase |
| 5 | (d) Hermetically sealed compressor of capacity 2.5TR 3 phase 415V AC 50 Hz |
| 6 | (e) Hermetically sealed compressor of capacity 3 TR 3 phase 415V AC 50 Hz Make |
| 7 | (f) Condenser Motor with blade for outdoor unit |
| 8 | (g) Bracket set up two |
| 9 | (h) HP/LP cutoff |
| 10 | (j) Ralay three phase |
| 11 | (k) Dryer for refigerant gas |
| 12 | (l) Material and labour for repair of display unit alongwith PCB unit twin compressor type. |
| 13 | Repair of voltage stabilizer 3 phase 10/15 KVA including change of faulted spares like circuit board, connector, wiring, display, knob, meters etc complete all as specified and directed. |
| 14 | M&L for evacuting, pressure testing with nitrogen gas & Gas charging of condenser-evaporator circuit with R410 gases complete all as specified and directed. |
| 15 | M&L for evacuting, pressure testing with nitrogen gas and supply and charging refrigerant gas R32 suitable for Refrigerators/water coolers/Deep freezers and cold room Air conditioners complete all as specified and directed. |
| 16 | M&L for descalling chiller unit cycle of the AC plant of capacity 25TR each Plant, chiller pumps, including AHU with descalling solution (ANTI SCALENE SCALE FOEE-100/Alsta scale DS85) 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 asembling back complete testing and commissioning including removing air lock, recharging the liquid taken out of the system complete all as specified and directed at Base Hospital Barrackpore. Note : Descalling the pumps, nylon brush,acid including storage containers, drill and drill bits to be arragned by contractor and work including welding cost of the same deemed to be included in the rate quoted for the following :-Note : Descaling shall be carried out by authorized firm dealing in cooling applications and firm which has fixed the central AC plant in a gap of min45-50 days. |
| 17 | M&L for descalling condenser unit cycle of the AC plant of capacity 25TR Plant includng cooling tower, condenser pumps, AHU with descalling solution (ANTI SCALENE SCALE FOEE-100/Alsta scale DS 85) with pump, brushing the tubes and where rquired drilling the stubbon scalling without damaging the tube, replacement of deshed end gasket and unsericeable nuts and bolts assembling back complete testing and commissioning including removing air lock, recharging the liquid taken out of the system complete all as specified and directed at Base Hospital Barrackpore.Note ; Descaling the pumps, nylon brush, acid including storage containers, drilland dril bits to be arranged by the Contractor and work including welding cost of the same deemed to be included in the rate quoted for the following :-Note : Descaling shall be carried out by authorized firm dealing in cooling applications and firm which has fixed the cental AC plant ina gap of min 45-50 days. |
| 18 | Material and laboure for taking down old used chokedHEPA filter form existing channel of OT1 and OT2 and replace with new HEPA filter of grade H13 having efficiency 99.99% down to 0.3 Micron of sizes 550mm x 550mm x 93mm having including cleaning the existing aluminium channel. Note : Quoted rate shall be included T &P as reqd for the same. |
| 19 | Material and laboure for taking down old used chokedHEPA filter form existing channel of OT1 and OT2 and replace with new HEPA filter of grade H13 having efficiency 99.99% down to 0.3 Micron of sizes 850mm x 550mm x 93mm having including cleaning the existing aluminium channel. Note : Quoted rate shall be included T &P as reqd for the same. |
| 20 | Material and laboure for taking down old used choked pre filter from existing channel of AHU and replace with new pre filter of grade G4 having efficiency 90% down to 10 Micron of size 610mm x 610mm x 50mm having including cleaning the existing aluminium channel. Note : Quoted rate shall be included T &P as reqd for the same. |
| 21 | Material and laboure for taking down old used choked pre filter from existing channel fo AHU and replace with new pre filter of grade G4 having efficiency90% down to 10 Micron of size 610mm x 305mm x 50mm having including cleaning the existing aluminium channel. Note : Quoted rate shall be included T &P as reqd for the same. |
| 22 | Material and laboure for taking down old used choked pre filter from existing channel fo AHU and replace with new pre filter of grade F7 having efficiency more then 98% down to 3 Micron of size 550mm x 550mm x 305mm having including cleaning the existing aluminium channel. Note : Quoted rate shall be included T &P as reqd for the same. |
| 23 | Material and laboure for taking down old used chokded pre filter from existing channel fo AHU and replace with new pre filter of grade F7 having efficiency more then 98% down to 3 Micron of size 550mm x 245mm x 305mm having including cleaning the existing aluminium channel. Note : Quoted rate shall be included T &P as reqd for the same. |
| 24 | Material and labour for dis assembling, transportation, servising and refixing of air blower and motor set automatic type having capacity 2-4 KW and flow rate max 6000 CFM including minorspares like fixing nut bolt, impeller Key, greasing, washer, heat burnishing of coil etc complete all as specified and directed. |
| 25 | Material and labour for dis assembling, transportation, servising and refixing of chilled water pump motor set and condenser water pump motor set having max capacity 5HP, including minor spares like fixing nut, bolt, impeller Key, greasing, washer, heat burnishing of motor coil etc complete all as specified and directed. |
| 26 | Material and labour for dis assembling, transportation, servising and refixing of 35 TR capacity 100 GPM flow rate cooling tower motor and induced draught fan, includng minor spares like fixing nut bolt, impeller Key, greasing, washer, heat burnishing of motor coil etc complete all as specified and directed. |
| 27 | S&F for V Belt of any size and any description for motors and blowers for max capacity 7.5 HP complete all as specified and directed. |
| 28 | M&L for chagne of coupling for pump and motor set max capacity 5 HP complete all as specified and directed. |
| 29 | Material and labour for surface preparation of old painted surface and painting with two coats of synthetic enamel paint by spray painting over a coat of red oxide primer on outer iron surface of any description , any shape, any size for pipe line, angle, AHU base, breacket, foundation of iron etc complete all as specified and directed. |
