68
12.1.5 Tank Mode Operation
Control contents:
a. 3 ways valve direction
o
3 ways valve switch to tank side during TANK THERMO ON condition. Switch 3 ways valve to room side
when tank achieve TANK THERMO OFF temperature.
b. Heat Pump Thermostat characteristic
o
Tank water set temperature = tank set temperature or 51°C whichever lower.
o
Heat pump Water Outlet set temperature is set to 57°C when Outdoor < 5°C and 59°C when Outdoor
≥
5°C.
Characteristic of heat pump thermo ON/OFF under Tank Mode condition:
Water Outlet Thermo Condition
o
Heat pump THERMO OFF TEMP:
1. Water outlet temperature >
Heat Pump Water Outlet Set Temp
for continuously 90 seconds, heat pump
OFF but water pump continues ON.
o
Heat pump THERMO ON TEMP:
1. Heat pump THERMO ON TEMP = Water inlet during thermo OFF time + [-3°C].
2. When water outlet temperature is less than Heat pump THERMO ON TEMP, heat pump ON.
Water Inlet Thermo Condition
o
Heat pump THERMO OFF TEMP:
1. Water inlet temperature is more than 55°C when Outdoor < 5°C and 57°C when Outdoor
≥
5°C for
continuously 30 seconds, heat pump OFF, water pump will continue ON.
o
Heat pump THERMO ON TEMP when Water inlet < water inlet THERMO OFF temperature.
Tank Thermo ON/OFF for HEAT Pump Operation:
When tank temperature achieve Heat Pump OFF condition, refer below condition:
Condition 1 : When Backup Heater for Tank Select USE from remote controller.
o
Heat Pump Turn OFF, Water pump continue ON and Backup Heater will continue boil up the tank if tank
temperature below Tank Heater Thermo ON condition. 3 ways valve will only switch to room side after heater
boil tank to Tank Heater Thermo OFF condition.
Condition 2: When Backup Heater for Tank Select NO USE from remote controller.
o
Heat Pump Turn OFF, water pump turn OFF, Backup heater OFF and 3 ways valve switch to room side.
When tank temperature achieve Heat Pump ON condition, Water Pump ON, Heat Pump ON and Backup
Heater turn OFF
o
Heat Pump OFF Condition at Tank Mode:
1. Tank Temperature > Tank Water Set Tempe [0°C] continuously for 10 seconds after heat pump
Thermo OFF due to water thermo, (Heat Pump turn OFF but water pump continue ON and Backup
Heater Turn ON to boil tank to achieve Tank Set Temperature),
OR
2. Tank Temperature > Tank Set TEMPE [2°C] for continuously 10 seconds (Heat Pump OFF,
Water pump OFF, Backup Heater OFF and 3-ways valve switch to room side)
o
Heat Pump ON Condition at Tank Mode:
1. Tank Temperature < Tank Water Set Tempe [-8°C]. (Water Pump Turn ON OR Continue ON,
Heat Pump ON and 3-ways valve switch to tank side or maintain at tank side)
c. Backup Heater Control
o
Backup Heater Turn ON condition:
1. Tank Temperature < Tank Set Tempe [0°C]
AND
2. Heat Pump Thermo OFF
AND
3. 20 minutes from previous heater OFF.
AND
4. Backup Heater for Tank Select USE from remote controller.
Summary of Contents for WH-ADC0916G9E8
Page 34: ...34 4 2 Outdoor Unit Air inlet rear Air inlet side Air inlet side Air outlet Air outlet ...
Page 40: ...40 8 Wiring Connection Diagram 8 1 Indoor Unit RY HT L1 RY HT L2 RY V3 RY V2 RY HT L3 ...
Page 100: ...100 Note Default value refer Location of Control and Component OPERATION ACTUAL ...