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from the wired controller directly. The remote control mode refers to that the indoor unit is controlled from
remote controller. When the setting is remote control mode, its function dial-up must be set on S7.
Dial-up switch 3 (M/S):
The setting of master / slave indoor unit refers to the master / slave setting of indoor run mode, mainly
used to meet the needs of special people on priority (e.g. leader, patients, etc). The factory default setting is
that all indoor units are master (dial-up switch pulled to "ON" position).
When all the indoor units are set as slave, the outdoor unit will run according to the mode of slave indoor
unit that is firstly started. If the mode of slave indoor unit started later has in conflict against the mode started
earlier, the system will display mode conflict error, so that the indoor unit started later cannot work. In this
case, the run mode of the unit is decided by the slave indoor unit that is firstly started.
When only one indoor unit is set as master, no matter if the master indoor unit is firstly started or not, the
slave indoor unit will give out mode conflict error as long as its mode is in conflict against the mode of master
indoor unit (except that the master indoor unit is stopped). In this case, the unit run according to the mode of
master indoor unit on priority.
When several indoor units are set as master, the mode of master indoor unit with a lower address code
will be taken as the master run mode of the unit. when the master indoor unit with the lowest address code is
changed from STOP state to RUN state, the mode of other master indoor units or slave indoor units shall be
kept identical to its mode; otherwise the system will give out mode conflict error. Therefore, when there are
several master indoor units, the address code of the unit shall be set from lower to higher according to priority
level.
Dial-up switch 4 (I/O):
Setting of ambient temperature acquisition point. This setting is mainly used when the temperature of air
conditioner area differs largely from the air inlet temperature of the unit. Meanwhile, this setting is only valid
when the receiver is connected, including the setting of temperature acquisition point at air inlet and setting
of the temperature acquisition point at receiver head. The factory default setting is acquisition of air inlet
temperature (dial-up switch pulled to "ON" position).
Dial-up switch 5 (L/H): Setting of high / low static pressure fan. This setting includes the setting of high
static pressure fan and low static pressure fan, adjusted as needed for the project. The factory default setting is
low static pressure fan (dial-up switch pulled to "ON" position).
Cautions:
1) The above settings must be done under power shutdown state.
2) When the "setting of control mode" is "L", the function dial-up for "setting of memory mode" and
"setting of master / slave indoor unit" will be disabled. When the "setting of control mode" is "I", this function
dial-up setting is enabled.
3) The dial-up switch shall be put to position correctly, and shall not be put to middle position. Dialing of
the switch to "ON" position indicates "0" and the dialing to opposite direction indicates "1".
4) After dialing up, please mark the address code of the unit(√).
3.7.2 Address code
Address dial-up must be set for the multi indoor units; otherwise the abnormal communication will be
caused to the unit. The address code has 4-bit dial-up in total. The highest address is 16 and the lowest address
is 1.
Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit
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