Commissioning Operation Of Hydro Box; Confirm Main Board Dip Switch; Capacity Dip Switch Of Hydro Box; Function Dip Switch Of Hydro Box - Gree GMV-S120WL/A-S Service Manual

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4.Commissioning Operation
Note: An indoor unit must be set to be master indoor unit and only one can be set during
commissioning.
If there is no special requirement, there's no need to set other functions and you can operate
the unit in factory settings. If special functions are needed, please refer to relevant section in this
manual.

4.1 Commissioning Operation of Hydro Box

4.1.1 Confirm Main Board DIP Switch

Confirm the DIP switch S
while S is function DIP switch.
2
4.1.1.1 Capacity DIP Switch of Hydro Box (S1)
Capacity DIP switch S
Capacity of hyrdo box
Note:
DIP switch must be set in place. Never set the switch in a middle position. ―ON‖ indicates ―0‖
status while the opposite direction indicates ―1‖ status.
Example: S1 is as below:
The black part indicates the lever.
4.1.1.2Function DIP Switch of Hydro Box (S2)
Note: Please set in strict accordance with actual engineering condition.
GMV5 Home DC Inverter Multi VRF Units
when water replenishing pressure is
over 3 bar?
Check if floor heating performer of
each room has been connected to
hydro box? If it has conducted
linkage setting with indoor unit?
Check if auto emptier is installed in
floor heating water cycle and hot
water cycle?
Check if hydro box is installed in the
first branch pipe?
and S on the main board of hydro box. S
1 2
has 5 digits. No not alter it arbitrarily.
1
Capacity DIP switch
1
16 ON OFF
reducing valve in
water system.
Refer to installation
setting of hydro box
Refer to installation
instruction of hydro
box.
It should be
installed in the
forefront of branch
pipe.
Model DIP switch
2 3 4
OFF ON
202
is capacity DIP switch
1
5
OFF