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Loose wiring may cause the terminal to overheat or result in unit malfunction.
WARNING
A fire hazard may also exist.
Therefore, ensure that all wiring is tightly connected.
When connecting each power wire to the terminal, follow the instructions on "How to Connect Wiring to Terminal" and fasten the wire
securely with the fixing screw of the terminal board.
4-4. Connecting Multiple Indoor Units to a Single Solenoid Valve Kit
● It is possible to connect plural indoor units to one solenoid valve kit. The indoor units can be controlled individually or be operated as
a group.
● It is possible to adopt plural indoor units with a common use of the solenoid valve kit per piece of refrigerant.
● Categories of connected indoor unit capacities are determined by the solenoid valve kit.
Type of solenoid valve kit
CZ-P160HR3
CZ-P56HR3
* If the capacity range is exceeded, use two solenoid valves connected in parallel.
Method 1
Solenoid
valve kit
Indoor unit
Remote
controller
Method 3
Solenoid
valve kit
Indoor unit
Remote
controller
Each Method (General) and Conditions
Method
Connectable number
of remote controls
Possible operating
functions
Possible operating
modes
Condition
Total capacity of indoor units (kW)
5.6 < Total capacity ≤ 16.0
Total capacity ≤ 5.6
Method 1
Solenoid
valve kit
Indoor unit
Remote
controller
Indoor unit
Remote
controller
Method 1
Connecting one indoor unit with
one solenoid valve kit
1 piece
Individual control
Cool, Dry, Heating, Auto, Fan
–
Solenoid
valve kit
Indoor unit
Indoor unit
Method 2
Group control is possible by
connecting plural indoor units to
one solenoid valve kit.
1 piece
Group control
* Thermostat On/Off function
is possible only in individual
control (when selecting the body
thermostat).
Cool, Dry, Heating, Auto, Fan
• Mixed cooling and heating is
impossible.
34
Method 2
Solenoid
valve kit
Indoor unit
Remote
controller
Method 3
Solenoid
valve kit
Indoor unit
Indoor unit
Remote
Remote
controller
controller
Method 3
Indoor units can operate individually
by connecting plural indoor units to
one solenoid valve kit.
Over 2 pieces
Individual control available
* Mixed group control available
Cooling, Dry, Heating, Fan
* Auto selection is impossible.
• Mixed cooling and heating is
impossible.
• Auto selection is impossible.
Indoor unit
Indoor unit
Remote
controller
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