Press“ ”and “ ”to lock or unlock the controller；When in lock status,the
display ,when in unlock status,the hide；
Press“ ”，If the panel is power on, it will be turned off. If the panel is turned off, it will
turn on.
The left side of the main interface shows the set temperature, and the right side shows
the return water temperature；
Press“ ”， to cycle select unit woking mode
Press“ ”and“ ”，to set the temperature.
Press“ ”for 3 seconds ，to set the real time.
Press“ ”， to set the unit on/off time.
V. Daily Maintenance & Repair
1. Maintenance
1）. External cleaning: The heat pump unit must be turned off, and wiped with a small amount of
neutral detergent with a damp cloth. Do not use gasoline or acidic solutions, alcohol, and finally dry
with a dry cloth.
2）. Waterway cleaning: emptying every 3 months, descaling material: cleaning with organic acids such
as formic acid, citric acid, acetic acid;
3）. Evaporator cleaning: The evaporator fins can be cleaned with a hard nylon brush. It must be
cleaned with a vacuum cleaner before brushing. If there is compressed air, the fin heat exchanger can
be cleaned with a high pressure air tube.
2. Common problem
1. Power cut
2. The power switch is not connected
3. Power switch fuse blown
1. Please wait to resume power supply
2. Power on
3. Replace the fuse
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