【
Check before pre-start up
】
Before start-up, please check the following items:
【
Pre-start up
】
A. When the installation of unit is completed, water system pipes are well connected and air
purging is done, no leakage or other problems, the unit can be powered to start up.
B. Turn on the unit, press the on-off button on the operation panel to start the unit.
Please check carefully if there is some abnormal noise or vibration, or the display of wired
controller is normal or not.
C. After the unit is working properly for 10 minutes, without any problem, then the pre-start
up is completed; If not, please refer to the Service and Maintenance chapter in this manual
to solve the problems.
D. Keep the unit running check if the supply water temperature is the same as shown on the
wired controller. If the water is not heated properly, please refer to
“
Trouble Shooting
”
to check the possible causes
.
A. Check if the water pipes are connected well and if there is any leakage;
B. Make sure the water supply valves are open and the water flows smoothly;
C. Check if the power cable is connected well and properly grounded, and if the cable is
broken or not.
D. Make sure the indoor and outdoor units have been installed in a flat and solid location.
E. Check if the power supply corresponds with the pecifications on the label.
F. In cold area, please ensure the supply water flow is smooth without freezing.
G. Check if the refrigerant pipe and water pipe are well insulated.
If everything above is OK, the unit can start up.
If any of them fails, please fix it.
It is suggested not to run "heating" or "hot water" mode, when ambient temperature is over
32
℃,
otherwise unit may go into protection mode easily.
2
Installation
8. Pre-Start up
1
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