150
12.2.2.3.2 Remote Control Wiring
Wiring diagram
1
2
R1
R2
Indoor unit
Terminals for RC wiring
RC
RC wiring (field supply)
• No polarity
Type of wiring
Use cables of 0.5 to 1.25 mm
2
.
Total wire length: 500 m or less
(The wire length between indoor units should be 200 m or less.)
Number of connectable units
Remote controller: Max. 2
Indoor unit: Max. 8
Attention
Use the field supplied RC wiring with at least 1 mm in thickness of insulation part including the sheath.
Regulations on wire diameters differ from locally to locally. For field wiring rules, please refer to your LOCAL
ELECTRICAL CODES before beginning. You must ensure that installation complies with relevant rules and
regulations.
Be careful not to connect cables to other terminals of indoor units (e.g. power source wiring terminal).
Malfunction may occur.
Do not bundle together with the power source wiring or store in the same metal tube. Operation error may occur.
If noise is induced to the unit power supply, attach a noise filter.
Wiring as shown below is prohibited.
12 12 12
RC
(main)
Indoor unit
Indoor unit Indoor unit
RC
(sub)
RC wiring
RC
RC wiring
When setting both the main and sub remote controllers
After installation, set one remote controller to [Main] and the other to [Sub] for [Main/sub] for “Setting”. (See the
other side)
When using the remote controllers* in combination, set this unit to [Main].
*CZ-RTC2, CZ-RTC4, CZ-RE2C2, CZ-RELC2
Using 1 indoor unit
12 12
RC wiring
RC
(main)
RC
(sub)
Indoor unit
Note
Remote controllers can be connected to any indoor unit for operation.
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