WARNING:
This heat pump water heater system maintenance and service sould be peformed by qualified technician.
The improper maintenance and service might cause serious personal injury or property lose.
Please disconnect the power to both heat pump unit and centralcontroller before any maintenance or
service is performed.
7 – Maintenance Instructions
•
Please inspect on the water piping system and gas exhausting valve regularly to avoid air
entering the system or there is no water in the system, which will bring negative influence on
the system performance and reliability.
•
Please clean the water system, including the water filter regularly (every 2 to 3 months) to
avoid the system stop due to insufficient water flow.
•
Please keep the system installation environment dry, clean and with good ventilation. To
ensure the good heat exchange performance of the air side coil, please use the dedicated
detergent to clean the air side coil regularly (every 12 to 24 months, depends on the
environment of the system installation).Proposed cleaning process: Dilute the detergent by
the water with the proposed proportion by the detergent supplier, spray the liquid to the coil
surface and wait for 3-5 minutes, then clean the coil with pressurized water. Please avoild
spraying detergent or water on the electrical components or wiring harnesses.
•
Please clean the condenser regularly (every 2 to 6 months, depends on the local water qualtity)
to ensure the efficient and safe operation of the heat pump unit.
•
Please inspect the major components of the system regularly and do the service or
maintenance if there is any abnormal observation.
•
Please inspect the power supply, electrical components and system wiring regularly and do
the service or maintenance if there is any abnormal observation.
•
Please drain out the water from the piping system, seal all the opennings, disconnect the
power to the system if the system will be stopped for a long time.
•
If the system had been stopped for a long time and need to be restarted. Please do the full
inspection on the system, check on every valve status, connect power to the heat pump unit
for at least 12 hours before switch on the system.
•
If the system had been stopped for a long time under low ambient temperature, i.e. the tank
temperature had dropped to lower than 15C. Please use the auxillary heater to heat the tank
temperature to be higher than 15C before start the heat pump system.
•
This hot water system is designed with anti-freezing protection function. Please do not
disconnect the power to the hot water system if the system is not under operation
continuously.
