minutes.
2) Parameters for Exiting Defrost Mode:
•When defrosting time reach 3 minutes and T4 reaches 10°C or defrosting time reaches 8 minutes, defrost exits and starts heating water mode. While defrost is exiting, after compressor and fan motor have stopped for 1 minute, the four way valve1 is turned off.
•The Compressor will restart after it stops for 3 minutes, and the system will run the same mode as before defrosting.
5-3 Fault Codes and Fault Descriptions
Failure Code:
E1: sensor for T1 (water temperature) failure
E2: sensor for T2 (ambient temperature) failure
E3: sensor for T3 (exhaust temperature from compressor) failure
E4: sensor for T4 (coil temperature in condenser) failure
E5: Compressor stops three times in 24 hours because the current is too high.
E6: While heating water, there is three times of T3≥100°C in 24 hours.
E7: There is electrical leakage in the compressor or outdoor motor or
Recommendation: Contact the installer or service agent
6 - Maintenance Instructions
The following operational maintenance must be done by a qualified person each year:
•Clean the back evaporator with a delicate brush and water jet without any pressure (karcher prohibited)
•Check the mandatory labelling and the operation of the unit
•Check the safety measures
•Check the pressure of the refrigerating gas
•Clean the electric box and control the connections
•Check the electrical connections
Premier Heat Pumps – Water Heater and Chiller Manual | Page 17 |
