REPAIR / REPLACEMENT OF DEFECTIVE PARTS, PIPE INSULATION, DUCTING SYSTEM, COOLING TOWER AND CONNECTED ITEMS OF CENTRAL AC PLANT AT MH AREA AND SSA UNDER AGE E/M OF GE JAIPUR

S&F in repair of thermostatic expansion valve suitable for R22 refrigerant, complete with sensing bulb, equalizer line, orifice assembly, including brazing with silver alloy, nitrogen purging during brazing, insulation of bulb and suction line with nitrile rubber, leak testing, evacuation, gas charging, and commissioning including taking down old one complete all as specified and directed.

S&F in repair of replaceable core type filter drier suitable for refrigerant circuit, refrigerant recovery, core replacement, nitrogen flushing, brazing, vacuuming, recharging of refrigerant, and testing including dismantling of old unit complete all as specified and directed.

S&F in repair of dual pressure control switch (HP/LP cut-out) suitable for chiller application, including capillary connection, wiring with control panel, calibration of set points, functional testing, and commissioning including taking down old complete all as specified and directed.

S&F in repair NTC type temperature sensor suitable for chilled water line, including removal of defective sensor, installation in thermowell, wiring to controller, calibration, testing, and commissioning incl taking down complete all as specified and directed.

Supply and fix in replacement of compressor oil filter, including draining of oil if required, removal of old filter, installation of new filter, oil topping, leak testing, and commissioning incl taking down complete all as specified and directed.

S&F in repair of control PCB/microprocessor controller compatible with Voltas chiller, including software configuration, parameter setting, wiring, integration with sensors and actuators, testing and commissioning incl taking down complete all as specified and directed.

S&F in repair of compressor crankcase heater suitable for oil sump heating, including mounting, electrical wiring, insulation, testing of heater operation, and commissioning incl taking down complete all as specified and directed.

S&F in repair of paddle type / electronic flow switch for chilled water line, including installation on pipeline, wiring to control panel, calibration, testing of flow interlock, and commissioning incl taking down complete all as specified and directed.

S&F in repair of pressure gauges for high side and low side, including siphon, isolation valves, mounting, leak proof connections, testing and commissioning incl taking down complete all as specified and directed.

Supply and charging of R22 refrigerant gas, including recovery of existing gas, leak testing with nitrogen, evacuation up to 500 microns, charging, pressure stabilization, and performance testing complete all as specified and directed.