Gree DC Inverter Multi VRF

DC INVERTER MULTI VRF CONTROL
56
3（M / S）
Setting of main and slave indoor units
A：For resolution of conflict among the modes.
B：This function is available without wired controller.
Main indoor
unit
Slave
indoor unit
About functional DIP swicth S7 ( for Ducted Type)
Functional DIP switch S7
Code Setting DIP
switch
Description
0（ON 位）
1
1（S / R）
Memory mode setting
Energized
standby（S）
Energized
recovery （R）
2（L / I）
Control method setting
Wired control
（L）
Remote
control （I）
3（M / S）
Master/slave indoor
unit setting
Master indoor
unit（M）
Slave indoor
unit（S）
4（I / O）
Collection point
setting for ambient
temp.
Return air
inlet （I）
receiver（O）
5（L / H)
High-low static setting
of fan
Low static
pressure（L）
High static
pressure（H）
Specific function of each function DIP switch is as follows:
DIP switch 1（S/R）——Memory mode setting; it includes energized standby mode and energized recovery
mode. Energized standby mode is that: after the unit resumes power supply, the previous setting parameters
will be maintained but cannot automatically run and such setting is factory setting (dialing the DIP switch
to “ON” position); For example, setting parameters of a indoor unit are high fan speed before
de-energization and 24℃ and after resuming power supply, the unit will be in standby status; Then
manually turn on the unit and its parameters are still high fan speed and 24℃. Energized recovery mode is
that: after the unit resumes power supply, not only it will keep the previous setting but also can
automatically run; But if the unit is in turnoff status before de-energization, it will still be that status after
resuming power supply.
DIP switch 2（L/I）——Control mode; it includes wired control mode and remote control mode. Wired
control mode is that: control the running of indoor unit by wired controller, which is factory setting (dialing
the DIP switch to “ON” position); When the setting is wired control mode, “Memory mode setting” and
“Master/slave indoor unit setting” of S7 are invalid which can be directly set on the wired controller.
Remote control mode is that: control the running of indoor unit by remote controller; when the setting is
remote control mode, its functional code must be set in S7.
DIP switch 3（M/S）——Master/slave indoor unit setting; it is master/slave setting of indoor unit running
mode, which is mainly used for people’ priority requirements (such as leaders, patients, etc.). The factory
setting is master indoor unit( dialing the DIP switch to “ON” position). When settings of all indoor units are
slave indoor units, outdoor unit will run in the mode of firstly started slave indoor unit. If the mode of later
started slave indoor unit and mode of firstly started slave indoor unit conflict, the conflict modes error will
be warned by the system and later started indoor unit cannot run. In that case, the running of the unit is
decided by firstly started slave indoor unit.