Baxi HP40 MB Series User's Operation Manual page 14

6.3.2 Fast DHW
The FAST DHW function is used to force the system to
operate in DHW mode.
The heat pump and the booster heater or addition
heater will operate for DHW mode together, and the
DHW desired temperature will be changed to 60℃.
Go to MENU> DOMESTIC HOT WATER >FAST DHW.
Press :
DOMESTIC HOT WATER（DHW）
DIS- FAST
INFECT DHW
CURRENT STATE
ON/OFF
DOMESTIC HOT WATER（DHW）
DIS- FAST
INFECT DHW
CURRENT STATE
ON/OFF
Use key to select ON or «OFF».
INFORMATION
If CURRENT STATE is OFF, the FAST DHW is
invalid, and if CURRENT STATE is ON, the FAST
DHW function is effective.
The FAST DHW function is once effective.
6.3.3 TANK HEATER
The tank heater function is used to force the tank heater
to heat the water in tank. In the same situation, the
cooling or heating is required and the heat pump system
is operating for cooling or heating, however there still is
a demand for the hot water.
Also, even if the heat pump system fails, TANK HEATER
can be used to heat water in tank.
Go to ''MENU'' > ''DOMESTIC HOT WATER'' > ''TANK
HEATER''. Press .Use to select ON or OFF. Use
to exit.
If TANK HEATER is activated, the following page will
appear:
TANK DHW
HEATER PUMP
ON
TANK DHW
HEATER PUMP
ON
DOMESTIC HOT WATER（DHW）
DIS-
INFECT
CURRENT STATE
ON/OFF
DOMESTIC HOT WATER（DHW）
DIS-
INFECT
CURRENT STATE
ON/OFF
Use to select ON or OFF. Use
If TANK HEATER is activated, the following page
will appear:
If CURRENT STATE is OFF, TANK HEATER is
invalid.
If the T5(sensor of tank) is faulty, tank heater
cannot work.
6.3.4 DHW Pump
Also, even if the heat pump system fails, TANK HEATER
can be used to heat water in tank.
Go to ''MENU'' > ''DOMESTIC HOT WATER'' > ''TANK
HEATER''. Press
> ''DHW PUMP''. Press
appear:
12
FAST TANK DHW
DHW HEATER PUMP
ON
FAST TANK DHW
DHW HEATER PUMP
ON
to exit.
INFORMATION
.
. The following page will