Check Points, Maintenance and Troubleshooting
78
Air-to-Water Heat Pump
To assure best performance of , it is required to perform periodical check and maintenance.
It is recommended to proceed following check list for once a year.
Maintenance
Turn off the power before proceeding maintenance
• In normal state, the pressure gage (inside of the unit) should
indicate 200~250 kPa.
• If the pressure is less than 30 kPa, please recharge the water.
• Disassemble strainer. Then wash the strainer to make it clean.
• While disassembling the strainer, be careful for water flood out.
• Open the switch of the safety valve and check if water is flood out
through the drain hose.
• After checking, close the safety valve.
• Look and inspect if there is loosen or defected connection on the
terminal block.
No Category Item Check Point
Water
Electricity
Water pressure
Strainer(Water filter)
Safety valve
Terminal block wiring
1
2
3
4
