6
Limitations and Warnings
1-1. Unit Application Range
1-2. Notes for Long-term Shut Down Between Seasons
• The unit should be connected to power to prevent freezing if it is shut down for a short period of time between seasons.
• For long-term shut down, the unit should be disconnected to power and drain the water inside the unit, water tank and pipeline,and turn off the
water discharge valve after the water is drained. Long time exposure to freezing environment would damage the water storage tank and
pipeline.
1-3. Notes for Starting the Unit
• When starting the unit for the first time or after long-term shut down, user should connect the main power switch at least 24hours in ad
vance to warm up the compressor.
•
Do not disconnect the main power switch of the unit when the unit is turned off in winter, otherwise the anti-freezing function will be invalid
and the unit will be damaged.
•
The Y type filter in water system must be cleaned on a regular basis.
•
Check the water system on a regular basis: confirm the normal operation of exhaust and water refill in water system.
•
Make sure the water temperature meets the operation requirements.
•
The air condition water pipeline and hot water pipeline must go through pressure test to ensure there is no water leakage.
1-4. Inspections before Start-up
1.Water pipeline inspection
Before starting the unit, make sure the pump can run normally and there is no leakage in the pipeline.
2.Air exhaust of water pipeline
Before starting the unit, make sure to exhaust the air in the water pipeline as below:
• Open the valve on the water pipeline.
• Open the pump.
• Open the air exhaust value at indoor end and the air exhaust value on the water pipeline.
• When the reading of the water pressure gauge of air condition water pipeline is above 2 bar and the pointer stops vibrating and there is no
air coming out of the air exhaust valve, the air exhaust is completed.
3.Parameter setup
•
User parameter setup table
Control by leaving water temperature
No.
Parameter Setup
Maximum Value
Minimum Value
Adjustment Precision
Factory Setting
1
Set temperature for
cooling
℃
25
5
1
7
2
Set temperature for
heating
℃
50
25
1
45
Temperature Range
Ambient Temperature
Leaving Water Temperature
Cooling
18
℃
~ 46
℃
5
℃
~ 15
℃
Heating
-15
℃
~ 25
℃
30
℃
~ 50
℃
1 Limitations and Warnings
