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Oil leakage during transit due to vibration is normal and can be remedied by topping up with POE (Polyol Ester) synthetic refrigeration oil. This must be performed by a qualified HVAC technician in accordance with proper procedures.Upon receipt, the compressor must be left standing for 4-6 hours to allow the oil to return to the crankcase. Do NOT install or start the compressor immediately.Welding & Troubleshooting Operation Specifications
I. Pre-welding Requirements
1. Replace the filter and clean the condenser (clean the air-energy water heater condenser with special cleaning solution and soak it).
2. Power on and test the unit. Proceed with welding only after confirming the exhaust pipe works normally.II. Troubleshooting & Dismantling Methods for Common Faults1. Compressor fails to run after power-onCause: Wiring reversal
Solution: Adjust the three connecting wires one by one until normal exhaust is achieved.
Note: Do not keep the power on for too long. There is only one correct wiring combination among all 6 wiring arrangements.2. Compressor overheat protection activates 10 minutes after startup
Cause: Poor system heat dissipation and excessive compressor load
Solution: Replace the filter and clean the condenser.3. Compressor has no pressure and makes abnormal noisesCause: Wiring reversal
Solution: Adjust the three connecting wires until the compressor runs in the correct direction.Important Reminders
Vacuum pumping is mandatory before refrigerant charging. Never invert the refrigerant cylinder during charging.
Pre-welding & Installation Safety Reminders
⚠️ Mandatory Pre-operation Requirements
Always perform a test run before welding. Simultaneously verify:
1. The system is free from water ingress
2. No blockages exist in the system
3. The expansion valve is functioning properly
Proceed with installation only after all above checks are confirmed satisfactory.Failure Warning:
Direct installation without prior inspection and test run may result in faults including excessive operating current, compressor vibration, and system protection activation.⚠️️️ Hidden risk: The refrigerating oil inside this compressor is used to lubricate the bearings. During transportation, the refrigerated oil may flow into the refrigerant pipeline. Skipping the standing-off step will result in insufficient oil quantity, bearing jamming and compressor damage after two days of operation.
⚠️ After receiving, it is necessary to let it stand for 4-6 hours to allow the oil to flow back into the crankcase. Do not install and start it directly.⚠️ Before the compressor is turned on for the first time, the crankcase heater must be activated 12 hours in advance.⚠️️️ Hidden risk: When not preheated, the refrigerant will dilute the POE lubricant, resulting in lubrication failure and bearing damage. This can occur within just two days.
⚠️ The inclination angle of this single compressor during operation must not exceed 15 degrees; otherwise, it cannot ensure that the refrigeration oil can properly cover the lubrication components such as bearings.⚠️ Professional HVAC technicians are required for the installation process. Do not attempt it yourself!!!Important: Ensure a Smooth Purchase!We want you to be delighted with your part!
Please review these details for a perfect fit:ZR54K5E-PFV-800 (1PH Single Phase)Core Specifications (60Hz, R22)Model: ZR54K5E-PFV-800Phase: 1PHVoltage: 208–230VFrequency: 60HzNominal Cooling Capacity: 53,500 BTU/h (4.5 HP)Power: 4.5 HP / 4,850 WRefrigerant: R22, compatible with R407C/R134aEER: 10.3Rated Load Current (RLA): 21.8 AMax Operating Current: 34 ALocked Rotor Current (LRA): 146 AOil Type: POE Polyester OilSuction Line: 7/8\" ODFDischarge Line: 1/2\" ODFWeight: Approx. 35.4 kg (78 lbs)Application: Medium & High Temperature HVAC SystemPackage included:
Hermetic Scroll Air Compressor *1（As shown in the figure）
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