Panasonic WH-MHF12G9E8 Service Manual

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

54Setting 2: When heating priority is not set by control panel: When Solar Priority is set/not set by control panel:1. 3 ways valve control:o 3 ways valve switch to room side during heating heat-up interval, and switch to tank side during tankheat-up interval. Both modes will switch alternatively. Tank mode is the Initial running mode of this heat+ tank mode (heating no priority).2. Heat pump operation control:o During heating heat-up interval Follow normal heating operationUnder solar priority set condition: Switch to tank heat-up interval and start counting tank heat-up timer when External Room ThermoOFF AND solar 3WV OFF AND Tank temperature < THERMO ON TEMP (End Room IntervalEarly) OR Switch to tank heat-up interval and start counting tank heat-up timer when tank temperature <THERMO ON TEMP AND solar 3WV OFF.Under solar priority not set condition: Switch to tank heat interval and start counting tank heat-up timer when External Room ThermoOFF AND Tank < THERMO ON TEMP (End Room Interval) OR Switch to tank heat-up interval and start counting tank heat-up timer when tank temperature <THERMO ON TEMP.* THERMO ON TEMP is defined Tank thermo ON/OFF condition below.o During tank heat-up interval Heat pump tank target temperature = Tank set temperature or [60°C] whichever lower. Heat pump Water Outlet set temperature is set to [63°C] during tank interval. Initial Tank THERMO ON TEMP = heat pump tank target temperature + [-8°C].Tank thermo ON/OFF characteristic:o THERMO OFF TEMP:1. THERMO OFF TEMP = Heat pump tank target temperature + [0°C].2. Tank temperature > THERMO OFF TEMP for continuous 10 seconds after heat pump off dueto water thermo, switch 3 ways valve to room side. End Tank heat-up interval and start countheating heat-up interval.3. Tank temperature > Tank set temperature + [2°C] for continuous 10 seconds, switch 3 wayvalve to room side. End Tank heat up interval and start count heating up interval.o THERMO ON TEMP:1. THERMO ON TEMP = Heat pump tank target temperature + [-8°C].2. After heating heat-up interval, always detect tank temperature. Switch to next tank heat-upinterval when tank temperature < THERMO ON TEMP.