Refcomp SRC-S(W)-985 SRC-S-985-L4 R404A Screw Air Conditioning Compressor for Refrigeration
Refcomp SRC-S-985 screw compressor
,R404A refrigeration screw compressor
,SRC-S(W)-985 air conditioning compressor
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Optimized Asymmetric Rotor Design
RefComp's 5/6 asymmetric rotor profile helps the screw air conditioning compressor maintain smooth compression while reducing gas pulsation, vibration and operating noise.
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Compact High-Pressure Housing
The semi-hermetic screw compressor features a 25-bar housing with optimized internal gas passages to reduce flow resistance. Its compact construction integrates the suction filter, shut-off valve and temperature sensor.
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Flexible Shut-Off Valve Configuration
360° rotatable suction and discharge shut-off valves simplify piping connections and servicing. An internal discharge check valve helps prevent refrigerant backflow when the screw air conditioning compressor stops.
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INT69 SNY Motor Protection
The RefComp screw compressor uses an INT69 SNY protection module with six series-connected PTC thermistors to monitor motor temperature and provide protection against overheating, reverse rotation and phase loss.
| Parameter | Value |
|---|---|
| Model | SRC-S(W)-985 | SRC-S-985-L4 |
| Rated power | 300 HP / 224 kW |
| Exhaust volume 50/60 Hz | 1100 / 1320 m³/hr |
| Weight | 1400 kg |
| Oil charge | 25 L |
| Cooling capacity regulation | 100%, 75%, 50%, 25% (stepless 100%–25%) |
| Standard motor | 400/3/50 Hz – 460/3/60 Hz |
| LRA Y/Δ | 1062 / 3186 A | 1062 / 3186 A |
Q1: How can I determine the required cooling capacity for my HVAC system?
For screw air conditioning compressor selection, provide the required cooling capacity, refrigerant, evaporating and condensing temperatures, and operating frequency. The SRC-S(W)-985 has a displacement of 1100 m³/h at 50 Hz and 1320 m³/h at 60 Hz, but actual cooling capacity must be verified against manufacturer performance data.
Q2: What should be considered when replacing an existing air conditioning screw compressor?
Compare the suction and discharge connections, mounting dimensions and electrical requirements with the existing installation. Check the available lifting access and supporting structure, as the SRC-S(W)-985 weighs 1400 kg.
Q3: How should capacity control be configured for changing cooling loads?
The SRC-S series specifies 100%, 75%, 50% and 25% capacity stages, with stepless regulation from 100% to 25%. Confirm the supplied control configuration and ensure the HVAC controller supports the required capacity adjustment method.
Q4: What should I check if the motor protection module trips during operation?
Inspect the power supply, phase sequence, motor temperature, PTC sensor connections and refrigeration operating pressures. Identify and correct the underlying fault before resetting the protection module or restarting the compressor.
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