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Premier Heat Pumps – Water Heater and Chiller Manual
Page 17
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 four-way
valve
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