Circulating Air Source Heat Pump Water Heater
10
（
4
）
The wiring distance between the water flow switch and the units should be less than 10m, and
the water flow switch should be installed at a position where wiring is easy;
（
5
）
Water flow switch project should be added by rain-proof equipment (Rainproof cover should be
set up);
（
6
）
Water flow switch installation size is “G1”.
3.7 Construction and installation for the heating water tank
Installation diagram of water tank:
The installation of water tank is mainly for the matching between water tank and pipeline and the
matching among water level switch. Please pay attention to below point during installation:
（
1
）
The water-getting outlet of user should be 50mm (minimum) higher than the circulating water
outlet to prevent water-lacking during operation.
（
2
）
The overflow port should be 50mm (maximum) higher than the water level switch to prevent
overflow of water tank. The overflow port must be connected with connection pipe and then lead it to the
flow drainage outlet;
（
3
）
The hot water inlet and the user back water outlet should point at the water level switch to
prevent impacting of water flow and then cause wrong action of switch.
（
4
）
If the auxiliary electric heating is installed on the water tank, the position of the auxiliary electric
heating should be lower than the user water-getting position.
（
5
）
Water temperature sensor must be installed under the user water-getting outlet, and it should
be placed into the blind pipe.
（
6
）
The valid volume of water tank must be ensured. The valid volume of water tank is the volume
between the user water-getting outlet and the high water level.
