Gree GRS-1.5/TD150ANbA-K, Руководство пользователя

Страница: 21 / 38

Air Source Heat Pump Water Heater
17
drainage pipeline and floor drain shall be lower than water tank bottom, otherwise,
water cannot be discharged completely. A cut off valve must be installed in drainage
pipeline, and the cut off valve must be installed in places where the user is
accessible.
(4) Safety valve installation
The safety valve (“→” indicates the direction to the water tank) supplied with
the unit shall be connected to the inlet of the water tank via a stub of PPR as Figure
4-5 is shown. The other end of the safety valve is connected with running water pipe.
To ensure usage safety, sequence in Figure 4-5 shall be strictly obeyed.
Cut off valve or check valve (one-way valve) shall not be installed between
safety valve and the water tank, otherwise, safety valve shall not work normally,
water tank error might occur.
During heating operation process, safety valve dripping water is a normal
phenomenon of pressure relief. Under standby status, if the safety valve keeps
dripping water, please check if water pressure is too high (not over 0.7MPa). If water
pressure is higher than 0.7MPa, install stabilizing valve correctly according to “(6)
Stabilizing valve installation”; if water pressure is below 0.7MPa, please check and
replace safety valve.
Safety valve must install diversion tube and be reliably fixed to prevent falling
off; lead the drainage hose to floor drain downward naturally and properly without
bending or any twine. After that, the surplus hose must be cut to avoid water in
drainage hose getting frozen due to blocking of drainage or low temperature.
To avoid any inconveniences or property losses due to water leakage or safety
valve discharging water which is resulted from improper connection of water pipe,
water tank and safety valve shall not be installed inside the room or balcony which is
without discharge floor drain.