5 Daily Maintenance and Repair
5�1 Daily Maintenance
In order to avoid damage of unit, all protecting devices in the unit had been set before outgoing, so the user
can never adjust or remove them.
For the rst startup of the unit or next startup of unit after long-period stop (above 1 day)by cutting off the
power, please electrify the unit in advance to preheat the unit for more than 8hr
Never put sundries on the unit and accessories. Keep dry, clean and ventilated around the unit.
Remove the dust accumulated on the condenser n timely to ensure performance of unit and to avoid stop
of unit for protection.
In order to avoid protection or damage of unit caused by blockage of water system, clean the lter in water
system periodically and frequently check water replenishing device.
In order to ensure anti-freezing protection, never cut off the power if ambient temp. is below zero in winter.
In order to avoid frost crack of the unit, water in the unit and pipeline system not used for a long period
should be drained. In addition, open the end cap of water tank for drainage.
Never frequently make the unit on/off and close manual valve of water system during operation of unit by
users.
Ensure frequently check the working condition of each part to see if there is oil stain at pipeline joint and
charge valve to avoid leakage of refrigerant.
If malfunction of the unit is out of control of users, please timely contact with authorized service center of
company.
Note: the water pressure gage is installed in returning water line in the indoor unit, Please adjust the hydraulics
system pressure according to next item:
①
If the pressure is less than 0.5 bar, please recharge the water immediately;
②
When recharging, the hydraulics system pressure should be not more than 2.5 Bar.
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