6. Maintenance and Inspection
To check the water supply device and the releaser often. You should avoid the condition of no water or air enter
into system, or that will influence unit's performance and reliability. You should clear the water filter regularly to
avoid unit's damage by filter's jam.
There should be dry, sanitary and ventilation around the units. To clean the side heating exchanger regularly for
keeping good heating exchanging and saving energy.
To check the operation of every process in the u nit, the operation pressure of the refrigerant system.
You should maintain or change it in time.
Please discharge all water in the water pump and water system lest freeze the water pump or water system.
You should discharge the water at the bottom of water pump if the units will stop for long time. And you
should check the units thoroughly and fill the system with water fully before power on the units again.
To check the power supply and cable connection often, there is abnormal action or bad smell about the electrical
component. If there is, please maintain or change it in time.
6.2 Trouble shooting guide
malfunction
Controller
display
Water in temp.
Sensor failure
Coil1 sensor failure(Heating mode)
Temp. is too much
different between
water-in and water-out
Anti freezing
under cooling mode
The second time freezing
protection in winter
High pressure protection
Flow switch failure
Power supply connections
wrong(for 3phase unit)
Defrosting
Communication failure
Defrost code
display
Reason
The sensor is open
or short circuit
Check or replace a new sensor
Water flow volume not
enough, water pressure
difference is too low
resolution
Wire controller and The
PCB connection failure
Check the wire connection
Wrong phase or
lack of phase power connection
Ambient temp. too low
No water/little water
in water system.
Check the water flow volume,
water pump is failure or not
Check connections of power cable
Water out temp.
Sensor failure
The sensor is open
or short circuit
Check or replace a new sensor
The sensor is open
or short circuit
Check or replace a new sensor
Gas return sensor failure
The sensor is open
or short circuit
Check or replace the sensor
Ambient sensor failure
The sensor is open
or short circuit
Check or replace the sensor
The first time freezing
protection in winter
Ambient temp. too low
Low pressure protection
3times display PP06
in 30minutes
(Temp.
is too much different between
water-in&out)
Check the water flow volume,
or water system is jammed or not
3
15
Swimming pool Heat Pump
6.1 Maintenance
Coil sensor failure
(Cooling mode)
Water volume isn’t enough
The sensor is open
or short circuit
Check or change the sensor
Ambient temp.too low
Refrigerant system pressure is high
EE 04
EE 03
E E02
Increase water volume
PP 08
EE 01
PP 07
PP 07
PP 07
PP 06
PP 05
PP 04
PP 03
PP 02
PP 01
EE 05
EE 08
Refrigerant system pressure is low
Check pressure gauge,increase the water
volume
Check pressure gauge,refeed refrigerant
To Next Page
Loading...