Liquid Receiver Function, Volume Calculation & Safety Matching for Refrigeration Rack

Liquid Receiver Function, Volume Calculation & Safety Matching for Refrigeration Rack

Liquid receiver is installed after condenser; store condensed liquid refrigerant, buffer liquid volume change under different load and defrost. Core functions: reserve refrigerant charge, maintain stable liquid supply, accommodate liquid migration during defrost and pump down. Receiver volume sizing rule: hold at least 50% of total system refrigerant charge for pump down maintenance. Xiteliduo rack liquid receiver is pressure vessel, CE marked for export, equipped with safety valve, liquid level sight glass, drain valve. Receiver inlet and outlet pipe layout: inlet above liquid level, outlet submerge below liquid level to ensure saturated liquid output. High liquid level: risk of liquid carryover to liquid line and overpressure; low liquid level: insufficient liquid supply under peak load. Receiver needs insulation only under special low pressure condition; normal high pressure receiver does not need thermal insulation. Pump down operation: close liquid solenoid valve, run compressor to pump refrigerant into receiver for safe maintenance. Receiver safety valve discharge pipe must lead outdoor, never vent inside machine room. Refrigeration maintenance & repair company reads liquid level sight glass before pump down and after refrigerant charging.

FAQ

1. Where is liquid receiver installed? Downstream of condenser.
2. What is the main function of receiver? Store liquid refrigerant and buffer volume fluctuation.
3. How much refrigerant can receiver hold for maintenance? Minimum 50% of total system charge.
4. What certification is needed for export pressure vessel receiver? CE certification.
5. Why outlet pipe submerge under liquid surface? Guarantee saturated liquid out, no gas carry.
6. What operation uses receiver to collect refrigerant? Pump down.
7. Does normal high pressure receiver need insulation? Generally not required.
8. What protection device is mounted on receiver? Safety relief valve.