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2010 Hyper-heating Y-SERIES SYSTEM DESIGN (Sept. 2010)
H2iSD-11
2010 H2i
®
Y-SERIES
SYSTEM DESIGN
2. M-NET CONTROL
2-4. Address Setting
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 outdoor unit, indoor unit and remote controller.
The address No. is set at the address setting board.
In the case of R2 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
¥ 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
PAR-21MAA
The MA remote controller does not have the switches listed above.
Refer to the installation manual for the function setting.
Setting the dip switches
There are switches on the front 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”.)
SW No
1
2
3
SW contents Main
Remote controller
Main/Sub setting
Temperature display
units setting
Cooling/heating dis-
play in AUTO mode
ON
Main
Celsius
Yes
OFF
Sub
Fahrenheit
No
Comment
Set one of the two remote controllers at one group to “Main”
When the temperature is displayed in [Fahrenheit], set to “No”.
When you do not want to display “Cooling” and “Heating” in the
Auto mode, set to “No”.
PAC-YT51CRB
4
Intake temperature
display
YesNo
When you do not want to display the intake temperature, set to
“No”.