Haier hp250m1 Installation And Service Manual page 16

The permissible ambient temperature for the heat-pump mode is between 7°C~35°C.
E. Overload protection function for water heaters
The working load of the compressor will be heavy if temperature is high in summer. In order to
meet hot water requirements of users and to lengthen service life of the compressor, this product
automatically adjusts the fan speed to ensure reliable operation of the compressor.
F. Anti-freezing function
The heat-pump starts heating to avoid freezing of the water tank if the temperature in the water
tank is too low.
G.The default temperature of this water heater is 55°C.
Function of the number of occupants, the temperature should be set as below; please raise the set
temperature if a more comfort is required.
H. Anti-legionella function:
This machine is equipped with a sterilization function, which is activated every 14 days to heat the
water tank to 65°C automatically to realize sterilization.
7. Checking and maintenance
Cleaning and maintenance of the water tank
Shut down the machine and cut off the power supply
Do not touch with wet hands
Do not clean with hot water or solvent
1. Safety valve maintenance
Rotate the safety valve handle once a month. The valve works well if there is water flowing out,
otherwise check for blocking and replace the safety valve if necessary.
2. Drain the water tank to empty
Cut off power supply and shut down water inlet valve, then drain the water tank to empty via the
sewage outlet. Please stay away from the sewage outlet if there is hot water inside the water tank
to avoid injury.
3. Replacement of the anode bar
The protective anode equipped for Haier heat-pump water heaters can prolong service life of its
products effectively. The magnesium anode, which shall be replaced in time, shall be checked
typically once every 2 years according to different water qualities.
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