Gree GRS-1.5/TD150ANbA-K, Руководство пользователя

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Air Source Heat Pump Water Heater
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2) Open the cut-off valve at the hot water outlet and valve in user water
use site;
3) Open the cut-off valve on the joint (3-way) pipe;
4) Close the drainage cut-off valve after draining water on the water tank
to complete drainage operation.
10.2 Periodic Cleaning for Water Tank
Please clean the water tank periodically to get good-quality water according to
the following steps:
(1) Cut off the power supply.
(2) Close the cut-off valve at the water inlet of the water tank.
(3) Open the cut-off valve at the hot outlet and valve in user water use site.
(4) Open the cut-off valve in joint (3-way) connector, and wait for drainage of
water inside water tank.
(5) Close the cut-off valve in joint (3-way) connector, open the cut-off valve at
the water inlet of the water tank, close the cut-off valve at the water inlet
when water flows from user water use site, then reopen the cut-off valve
in joint (3-way) connector, repeat the drainage operation, close the cut-off
valve in joint (3-way) connector when water discharged is clean.
(6) Conduct water input for the water tank according to water input operation.
(7) Water tank cleaning completed and energize it.
10.3 Maintenance of Safety Valve
During heating, if pressure of inner tank of the water tank is too high, it will
discharge little water to release pressure through safety valve, which is a normal
phenomenon. However, if water of big outflow occur in safety valve obviously, even
result in vibration of pipeline and give out abnormal noise, please contact with our
authorized maintenance center for inspection. There are mainly two reasons for this
phenomenon:
(1) Safety valve is damaged;
(2) Water input pressure of the tap water is higher than the max.
Working pressure (0.7MPa) of water tank will generally occur if no effective
pressure relief treatment for the tap water. Under normal situation, pressure of tap
water is around 0.3MPa, if supplement tap water with booster pump, water input