System Function Dip Switch Settings - Gree Ultra Heat GMV Multi VRF Heat Pump Series Service Manual

Ultra Heat GMV VRF Technical Service Manual

3.1 System Function DIP Switch Settings

DIP
Name
Switch
Outdoor silent
S1 mode setting
DIP Switch
Outdoor fan
static pressure
S2
setting DIP
switch
Centralized
S3 control address
DIP switch
Master unit
S7 setting DIP
switch
 On the master module, the S3 DIP switch must be set again, the S7 DIP switch cannot be further set,
and other DIP switches retain the factory settings without special requirements.
 If above DIP switch setting is incorrect, unit will work abnormally and compressor may even be
damaged.
3.1.1 Outdoor silent mode setting DIP switch (S1)
The outdoor silent mode setting DIP switch (S1) is used to set noise grades at the place needing
low noise, such as hospital, hotel at night, no matter in the daytime or nighttime. The silent modes of unit
include standard mode, low noise mode, medium noise mode, superlow noise mode. The setting
Meaning
Sets the noise grades of unit when
necessary, especially for hospital.
Sets the static pressure of the fan
according to the static pressure of
the exhaust pipeline connected
with the engineering unit, to
guarantee normal operation of the
unit.
Defines and differentiates
addresses of different systems in
the case of centralized control by
multiple systems.
Defines the master unit.
Factory
Settings
This DIP switch is used to set noise
00
grades at the place needing low noise.
This DIP switch should be set based on
actual engineering conditions, neither
00 over-large nor over-small. It is
unnecessary to change the factory
settings in outdoor scenarios.
The address DIP switch is used only
when centralized control is required.
Otherwise, the factory settings are used
00000
without being changed. The address DIP
switch is valid only when it is set on the
master unit.
A master unit must be set, and only one
master unit can be set in each
00 refrigerating system. This DIP switch is
mandatory. The default factory setting is
the master unit status.
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COMMISSIONING OPERATION
Remark