| 1 | Supply, installation, testing and commissioning for replacement of damaged scroll compressor of 10 TR capacity in existing chiller type air conditioning plant, with new hermetically sealed high-efficiency scroll compressor of Blue Star / Bluestar make or equivalent approved make, compatible with existing system configuration, refrigerant (R410A/R407C or equivalent) and operating conditions, including dismantling and safe removal of the existing damaged compressor, supply of new compressor with superior or equivalent performance parameters, replacement of necessary accessories such as filter drier, contactors, oil, refrigerant gas and sealing components, flushing/cleaning of system if required, proper installation with vibration isolation, electrical connections and integration with existing microprocessor control system, updating/reprogramming of control software if required for compatibility and optimal performance, complete testing including pressure testing, vacuumisation, gas charging, leak testing and performance verification, trial run and commissioning to restore full operational efficiency of the plant, and handing over in satisfactory working condition, including all materials, labour, tools, tackles, transportation and incidental works required for complete execution of the job as specified and as directed. | 2.00 | EACH |
| 2 | Description All as per Item No 1 above but Supply and Fix in replacement of Hitachi make compressor of 8.5 TR capacity | 4.00 | EACH |
| 3 | Supply, installation, testing and commissioning for replacement of blower fan motor of 900 RPM, 230V, single phase, suitable for existing 8.5 TR scroll compressor based air conditioning unit, with new motor conforming to required speed, voltage and capacity, including dismantling and safe removal of existing defective motor, supply and fixing of new motor with compatible mounting, alignment with blower assembly, replacement of coupling, bearings, capacitor and associated electrical components as required, proper wiring and integration with existing control system, testing for rotation, vibration and current parameters, and commissioning to ensure smooth and efficient operation of the unit, complete with all materials, labour, tools, tackles and incidental works as specified and as directed. | 4.00 | EACH |
| 4 | Supply, installation, testing and commissioning for replacement of exhaust fan motor of 3 HP, suitable for existing 40 TR chiller unit air conditioning plant, with new motor conforming to required rating, speed, voltage and continuous duty conditions, including dismantling and safe removal of existing defective motor, supply and fixing of new motor with compatible mounting and proper alignment with exhaust fan assembly, replacement of bearings, coupling, starter/capacitor and associated electrical components as required, proper wiring and integration with existing control panel, testing for correct rotation, vibration, insulation resistance and load performance, and commissioning to ensure smooth, reliable and efficient operation of the system, complete with all materials, labour, tools, tackles and incidental works as specified and as directed. | 2.00 | EACH |
| 5 | Evacuation of refrigerant gas from each 8.5 TR chiller unit of package/central air conditioning plant, followed by thorough leak testing of the system using dry nitrogen by isolating low-pressure and high-pressure sides, detecting and arresting all leaks, including replacement of Teflon seats in refrigerant lines, servicing/replacement of suction and discharge valves of compressor, renewal of gland packing of all angle valves, re-flaring of joints as required, and subsequent evacuation, dehydration and charging of refrigerant gas to required parameters, complete in all respects to restore system integrity and performance, including all materials, labour, tools and tackles as directed
Note: quoted rate shall be inclusive of cost of dry nitrogen gas.
| 6.00 | JOB |
