GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
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MPa. If a booster pump is used to replenish water, the water replenishment pressure may exceed 0.7
MPa. In this case, a pressure reduction valve needs to be added to the tap water replenishment pipe to
reduce water replenishment pressure.
Open the safety check valve’s handle to check whether it is blocked on a regular (about once a month)
basis. If it is blocked, contact the authorized maintenance center for check or replacement. Perform
sewage disposal by following the guide on a regular (about once a year) basis.
4 Maintenance of the Unit
(1) Regularly check whether the air inlet and outlet of the main unit are blocked. If blocked,
immediately clean them.
(2) Regularly check whether piping between the main unit and the water tank, piping on the water
use side, pipe fittings, and valves are damaged or blocked. Check whether any joint leaks, and whether
the filter is blocked.
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