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23
Operation and Use
Note:
①
:Fault code
②
:Fault name
③
:Occurrence time of the fault,Day, month and year hour: second (s)
④
:Click this key to clear all fault records
meaning
default
adjust(yes/no)
Parameter table
Return water temp.
Setting( Hot water)
yes
55
℃
parameter
Return water temp.
Setting(Heating)
yes
40
℃
R01
R02
24
6.1 Maintenance
Check the water supply and air vent frequently, to avoid lack of water or air in the water loop.
Clean the water filter in a certain period to keep good water quality. Lack of water and dirty
water can damage the unit. The heat pump will start the water pump per 72 hours when it is
not running, to avoid freezing.
Keep the unit in a place which is dry and clean, and has good ventilation. Clean the heat
exchanger in 1 or 2 month and keep good heat exchange rate and save energy.
Check each part of the unit and the pressure of the system. Replace the failure part if there
is any, and recharge the refrigerant if it is needed.
If the heat pump is not used for a long time, please drain out all the water in the unit and
seal the unit to keep it good. Please drain the water from the lowest point of the heat
exchanger to avoid freezing in winter. Water recharge and full inspection on the heat
pump is needed before it is restarted.
Check the power supply and the electrical system, make sure the electrical components are
good, the wiring is well. If there is any part failed with wrong action or smell, please replace
in time.
The water loop of the heat pump MUST be protected from freezing in winter time. Please
pay attention to below suggestions. Nonobservance on below suggestion will invalid the
warranty for the heat pump.
(1) Please do not shut off the power supply to the heat pump in winter. When the air
temperature is below 0
℃
, if the inlet water temperature is above 2
℃
and below 4
℃
,
the water pump will start for freezing protect, if the inlet water is lower than 2
℃
, the
heat pump will run for heating.
Please drain out the water in the super heater of the heat pump unit in winter, when the
super heater is not used, in case it is heat pump with super heater.
Troubleshooting and extra information
Note:
①
:Fault code
②
:Fault name
③
:Occurrence time of the fault,Day, month and year hour: second (s)
④
:Click this key to clear all fault records