Gree FP-22LM/D-K Owner's Manual page 14

Vertical Exposed Fan Coil Unit
(5) When the water pipe and water valve have been installed, connect the connection line of the valve to
the wiring board of the unit.
(6) Check the wiring carefully and then start the water pump and unit to see if they work normally.
2.7.2 Requirements on installation
(1) The water valve should be installed as the following statement; otherwise it would affect the normal
operation.
It is not allowed to directly insulate the connection line
of the actuator and the water pipe together, otherwise it
would lead to shortcutting of the water valve which would
affect its service life.
Water pipe
Never install the valve downwards, otherwise the
condensate would flow into the valve and damage the
valve or then would lead to shortcutting or fire hazards.
(2) There are direct pass and bypass for the water valve and they can be selected based on actual
conditions. See the figure below for the working principle for the water valve.
Connection line of the actuator
Insulation
sleeve
Insulation sponge
Put the connection line through the PVC pipe
and then bind them with the insulation sleeve.
Connection line
of the actuator
Water pipe
The main body of the valve should be
installed upwards and the power lines should be
arranged above the water pipe.
Do not cover fully the valve with the
insulation sponge; otherwise it would
lead to poor heat radiation and even
fire hazards.
Power lines
Switch
Outlet pipe
Bypass
Inlet pipe
11
PVC pipe
Insulation
sleeve