Functional Dial Switch Of Hydro Box Nrqd16G/A-S; Functional Application Of Hydro Box; Hydro Box (Nrqd16G/A-S) - Gree GMV-S120WL/A-S Service Manual

5.2 Hydro Box (NRQD16G/A-S)

5.2.1 Functional Dial Switch of Hydro Box NRQD16G/A-S

Functional dial switches of unit are in S1 and S2 of mainboard AP1, the default factory
settings are as below:
S1_capacity
Code
S1_capacity Capacity Code
Functional dial
S2_Function
Instruction:
1) Functional Dial Switch (S2_Function)
The functional dial switch is four-digit: ―1‖, ‖2‖, ‖3‖, ‖4‖, which respectively represent the
following Gree water tank, floor heating, solar energy, self-made water tank. Each type of
functional dial switch: dial ―OFF‖ means the function is ―connected‖, dial ―ON‖ means the function
is ―disconnected‖.
―1‖ and ―2‖ must be set according to actual engineering situation, ―3‖ and ―4‖ is not allowed to
changed arbitrarily, otherwise it may cause temperature sensor failure or the unit cannot operate
normally.
Specific meanings are as below:
Serial No.
of Dial
Switch

5.2.2 Functional Application of Hydro Box

Functions of hydro box covers user operation functions and engineering application functions.
For user operation functions please refer to instruction manual of hydro box and wired controller.
Engineering application functions include:
GMV5 Home DC Inverter Multi VRF Units
Name Meaning
Nominal rated capacity
of unit
Setting of equipments
for connecting hydro
switch
box
Meaning
1 Gree water
tank
2 Floor heating
3 Solar energy
4 Self-made
water tank
SN
S2_Function
Default
Setting
Default
1100
Dial Switch
disconnected connected
ON OFF
ON OFF
ON OFF
ON OFF
Function Name
241
Remarks
The default factory
settings are completed,
which cannot be
changed.
After finishing installing
the unit, conduct dial
switch setting according
to actual connected
equipment.
Default
Setting
OFF
OFF
ON
ON