Specifications

WR2-SERIES SYSTEM DESIGN (June 2010)
WR2SD-15
WR2-SERIES
SYSTEM DESIGN
2. M-NET CONTROL
2-4. Address Setting
1
234
ON
1
234
ON
Branch
No. setting
Unit address No. setting
Rotary switch
In order to constitute CITY MULTI in a complete system, switch
operation for setting the unit address No. and connection No. is
required.
À Address No. of heat source unit, indoor unit and remote controller.
The address No. is set at the address setting board.
In the case of WR2 system, it is necessary to set the same No. at the
branch No. switch of indoor unit as that of the BC controller
connected. (When connecting two or more branches, use the lowest
branch No.)
Á Caution for switch operations
 MA remote controller
Setting the dip switches
The dip switches are at the bottom of the remote controller.
Remote controller Main/Sub and other function settings are performed
using these switches.
Ordinarily, only change the Main/Sub setting of SW1. (The factory settings are all ON .)
Set one of the two remote controllers at one group to Main .
Remote controller
Main/Sub setting
When remote control-
ler power turned on
Cooling/heating dis-
play in AUTO mode
Intake temperature
display
When you want to return to the timer mode when the power is restored after
a power failure when a Program timer is connected, select Timer mode .
When you do not want to display Cooling and Heating in the
Auto mode, set to No .
When you do not want to display the intake temperature, set to No .
SW No
1
2
3
4
SW contents Main Comment
ON
Main
Normally on
Yes
Yes
OFF
Sub
Timer mode on
No
No
¥ Be sure to shut off power source before switch setting. If operated with power source on, switch can
not operate properly.
¥ When connecting only one remote controller to one group, it is always the main remote controller.
When connecting two remote controllers to one group, set one remote controller as the main remote controller
and the other as the sub remote controller.
¥ No units with identical unit address shall exist in one whole air conditioner system. If set erroneously,
the system can not operate.
¥ The factory setting is Main .
2-4-1. Switch operation
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9