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Items to be Checked
Check whether the water pipeline system is complete.
Check whether the power supply is consistent with the
power supply required in this manual and the unit
nameplate.
Check whether the specification of the power supply
line is consistent with that required in this Manual.
Whether the unit is firmly installed.
Whether there are obstacles at the air outlet and air inlet
of the unit.
7.2 Commissioning
The whole unit can be commissioned only after the installation and inspection of the unit are
qualified. The commissioning steps are as follows:
(1) Keep the valve fully open first.
(2) When the water supply pump of the unit is not connected to the heat pump unit, the water supply
pump shall be connected and adjusted to the nominal flow of the unit before starting. If the water
supply pump is controlled by the heat pump unit, the whole unit shall be powered on and the flow
shall be adjusted to ensure that there is no water leakage in the pipes and joints.
(3) When the whole unit is powered on, it is necessary to confirm that the leakage protection switch is
in "ON" before starting and running. After the unit is powered on, observe whether the wire
controller displays normally. If there is no fault, it is normal.
(4) Time calibration of controller by wire controller system.
(5) Refer to the manual of the wire controller for WiFi connection.
(6) Start the wire controller and check whether the unit operates normally: Gradually adjust the
bypass valve from fully-open to half-open, the fan operates normally, and the whole unit operates
stably without obvious shaking or abnormal noise. After running for 10 min, the unit inlet and
outlet wind energy feel obvious temperature difference. Adjust the inlet and outlet bypass valves,
so that the heat pump water flow reaches the rated flow, and the unit inlet and outlet water
temperature difference is about 2°C.
(7) After commissioning or setting wire controller, close the lid of the box and fix it with the tapping
screw that comes with the unit to avoid rain or misoperation.
8.Non-Fault Phenomenon
Phenomenon
Start up immediately after shutdown.
Unit frosting.
During operation, you will hear the sound of "rushing" or
"hissing" like running water.
The unit has condensate discharge.
Tab. 7.1 Unit installation checklist
Possible Situation in Case of Improper Installation
System protection caused by pipeline leakage.
Abnormal unit or burnt-out parts.
Abnormal unit, heated or even blown line.
The unit operation may produce noise or vibration, and even
cause falling hazards.
Abnormal unit operation.
In order to protect the unit, start the unit immediately after
shutdown, and the microcomputer control will delay its
operation for about 5 min.
In heating mode, the outdoor ambient temperature is low and
frosting is a normal operation process. The unit will defrost
regularly to ensure reliable operation.
The sound of refrigerant flowing is normal.
Normal phenomenon during unit operation.
30
SWIMMING POOL HEAT PUMP (R32)
Cause Analysis
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