If install the unit first time or use for long time, rooms are not as
well heated as before even can hear strange noise due to dirt
in pipe and ir cause shorten the use life
Please remove the dirt when use first time in winter and more
than twice in a year
CAUTION
Please unplug the unit from the power source when you clean
- When clean with water or wet towel, it may cause electric shock
Please follow the below when you clean the heating filter
- When clean the heating filter, hot water in the appliance may
cause burns
1
.
Please unplug the unit from the power source.
2
.
Please close the gas shut-off valve.
3
.
Please close the domestic hot water inlet valve
5
.
Please clean the domestic hot water filter with clean water.
②
Please take out the filter from DHW nipple attached the unit.
6
.
After cleaning the domestic hot water filter, please reattach it in
reverse order iten 4.
7
.
Please open the domestic hot water inlet valve.
8
.
Please plug the unit to the power supply.
9
.
Please open the gas shut-off valve.
4
.
①
Please unfasten DHW outlet nut.
10 Maintaining the Boiler
4.1 How to clean the hot water filter
4. Maintaining the Boiler
