Panasonic WH-SXC09D3E5 Service Manual page 44

ii. Case 2
- Heat pump THERMO OFF TEMP:
1. Heat pump THERMO OFF TEMP = 53 C + [+4 C].
2. Water outlet temperature > Heat pump THERMO OFF TEMP for continuous 3 minutes, heat pump OFF and water
pump OFF.
- Heat pump THERMO ON TEMP:
1. Heat pump THERMO ON TEMP = Water inlet during thermo off time + [-3 C].
2. Heat pump ON back when water outlet temperature < Heat pump THERMO ON TEMP
iii. Case 3
- Heat pump THERMO OFF TEMP:
1. Water inlet temperature > 55 C for continuous 60 secs, heat pump OFF and water pump OFF
- Heat pump THERMO ON TEMP:
1. Heat pump THERMO ON TEMP = Water inlet during thermo off time + [-3 C].
2. Heat pump ON back when water outlet temperature < tank temp. when heatpump thermo off + [-3°C]
3. Heat pump only ON back after water outlet temperature < Heat pump THERMO ON TEMP & water pump ON for 3
minutes.
• Booster heater control
1. Booster heater turn On and OFF follow normal operation.
2. Booster heater turn ON condition:-
• During startup time (initialization), Booster heater turn ON after DELAY TIMER.
• When tank temperature lower than HEATER ON TEMP
• 20 minutes from previous heater off.
3. Booster heater turn OFF condition:-
• When tank temperature higher than tank set temperature for continous 15 sec.
• Solar 3 way valve
- Solar pump operates follow solar operation specification.
• 2 ways valve control:
- 2 ways valve close
• Others
- Indoor backup heater cannot be On during tank mode only.
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