Air Source Heat Pump Water Heater
34
16 Servicing and Maintenance
16.1
Water Replenishment for the Water Tank
(1) Water replenishment procedure
①
Cut off the power supply of the unit, and open the cut-off valve of the
hot water outlet pipe and the valve at the location for water use.
②
Open the cut-off valve of the tap water inlet pipe.
③
When the water comes out from the location for water use, close the
valve at the location for water use.
④
Complete water replenishment, and switch on the power supply.
(2) Water tank drainage procedure
①
Cut off the power supply of the unit, and close the cut-off valve of the
tap water inlet pipe;
②
Open the cut-off valve of the hot water outlet pipe and the valve at the
location for water use.
③
Open the cut-off valve of the outfall;
④
After the water tank is drained, close the cut-off valve of the outfall. The
drainage operations are complete.
16.2 Regular Cleaning for the Water Tank
To ensure the quality of hot water you use, follow the following steps to regularly
clean the water tank:
（
1
）
Cut off the power supply of the unit.
（
2
）
Close the cut-off valve on the water inlet pipe of the water tank.
（
3
）
Open the cut-off valve of the hot water outlet pipe and the valve at the
location for water use.
（
4
）
Open the cut-off valve of the outfall until the water tank is drained.
（
5
）
Open the cut-off valve on the water inlet pipe of the water tank to clean
the water tank. Close the cut-off valve of the outfall until the water discharged from
the outfall becomes clean.
（
6
）
Replenishment water for the water tank by following the water
replenishment operations.
