Panasonic WH-MHF12G9E8 Service Manual

Also see for WH-MHF09G3E8: Planning and installation manual Service manual Operating instructions

4812.1.3 Tank Mode OperationControl contents: 3 ways valve directiono 3 ways valve switch to tank side during Tank Thermo ON condition. Switch 3 ways valve to room side whentank achieve Tank Thermo OFF temperature and SOLAR turn ON condition. Heat Pump Thermostat characteristico Water set temperature = Tank set temperature or [60°C] whichever lower.o Heat pump Water Outlet set temperature is set to [63°C] at tank mode. Tank Thermo ON/OFF characteristico THERMO OFF TEMP:1. THERMO OFF TEMP = Tank water set temperature + [0°C].2. Tank temperature > THERMO OFF TEMP for continuous 10 seconds after heat pump OFF, water pumpOFF or3. Tank temperature > Tank set temperature + [2°C] for continuously 20 seconds.o THERMO ON TEMP:1. THERMO ON TEMP = Tank water set temperature + [-8°C].When detect tank temperature < THERMO ON TEMP, water pump ON for 3 minutes then heat pump ON.Characteristic of heat pump thermo ON/OFF under Tank Mode condition: Water Outlet Thermo Conditiono Heat pump THERMO OFF TEMP:1. Heat pump THERMO OFF TEMP = 63°C + [+4°C].2. Water outlet temperature > Heat pump THERMO OFF TEMP for continuous 3 minutes, heat pump OFF.o 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. Water Inlet Thermo Conditiono Heat pump THERMO OFF TEMP:1. Water inlet temperature > 65°C for continuous 60 seconds, heat pump OFF.o Heat pump THERMO ON TEMP:1. Heat pump THERMO ON TEMP = Water inlet temperature < 65°C. Booster heater controlo Booster heater turns ON and OFF follow normal operation.o Booster heater turns ON condition:1. During start up time (initialization), Booster heater turns ON after DELAY TIMER.2. When tank temperature lower than HEATER ON TEMP.3. 20 minutes from previous heater OFF.o Booster heater turns OFF CONDITION:1. When tank temperature higher than tank set temperature for continuous 15 seconds. Solar 3-way valveo Solar pump operates follow solar operation specification. 2 way valve closes Othero Indoor backup heater cannot be ON during tank mode only.