Refcomp SRC-S(W)-503 SRC-S-503-L4 180HP Screw Compressor for HVAC System

Q1: What operating data should I provide when selecting the SRC-S(W)-503 for an HVAC system?

For screw compressor HVAC selection, provide the required cooling capacity, refrigerant, evaporating and condensing temperatures, and operating frequency. The SRC-S(W)-503 has a displacement of 562 m³/h at 50 Hz and 674 m³/h at 60 Hz, while actual cooling capacity must be verified against the manufacturer's performance data.

Q2: How can the SRC-S(W)-503 handle fluctuating cooling demands?

This HVAC screw compressor supports 100%, 75%, 50% and 25% capacity regulation stages, with stepless adjustment from 100% to 25%. Confirm the supplied capacity control configuration and controller compatibility to ensure proper operation under varying loads.

Q3: What should be verified before connecting the SRC-S(W)-503 to an existing refrigeration system?

Check the 105.5 mm (4-1/8") suction and 80.0 mm (3-1/8") discharge connections against the existing pipework. Verify the motor starting arrangement, electrical protection and compatibility with the standard 400V/3/50Hz or 460V/3/60Hz power supply before installation.

Q4: What should I check if the SRC-S(W)-503 operates with unusually high discharge temperatures?

In screw compressor HVAC systems, elevated discharge temperatures may result from excessive condensing pressure, abnormal suction conditions or insufficient refrigerant flow. Check the condenser performance, refrigerant charge and actual operating conditions against the manufacturer's specified limits before continuing operation.