Large temp. difference between wate inlet
and outlet
1.Check if the water system is normal, check if the water
flow volume is small
2.Check if the unit operation is normal, check if the
discharge temp. and system pressure is normal
Low outlet water temp. protection
1.Check if the water system is normal, check if the water
flow volume is small
2.Check if the unit operation is normal, check if the
discharge temp. and system pressure is normal
High cooling coil temp. protection
Check if the fan blades are too dirty that influence the
heat exchange efficiency of the heat exchanger
Cooling coil temp. antifreeze protection
Unit antifreeze protection operation
High outlet water temp. protection
1. Check if outlet water temperature is too high
2. Check if the water outlet temp. sensor is in failure
3. Check if the setting water temperature is too high
Ambient temperature too high or too low
1. Check if the current ambient temperature is out of the
unit working ambient temperature range
2. Check if the ambient temperature sensor is in failure
To Next Page
Loading...