– 21 –
HWM : Hot Water Module
NOTE
It is not possible to connect any Hot Water Modules and any indoor units together for group control.
L1
L
L2
Ln
Indoor unit
Remote controller inter-unit wiring
Indoor unit
Indoor unit
Indoor unit
Remote
controller
(Max. 8 units)
Remote
controller
wiring
Correct
L1
L2
Ln
L
HWM
Indoor unit
Indoor unit
Indoor unit
Remote
controller
(Max. 8 units)
Incorrect
Remote controller inter-unit wiring
Remote
controller
wiring
Ln(*)
L
L1
L2
HWM
HWM
HWM
HWM
Remote
controller
(Max. 8 units)
Correct
Remote controller inter-unit wiring
Remote
controller
wiring
(*) : In the case of multiple refrigerant systems
Wiring between indoor (including hot water module) and outdoor
units
NOTE
• An outdoor unit connected with control wiring between indoor (including hot water module) and outdoor units wire
becomes automatically the header unit.
• Do not turn off the circuit breaker of the hot water module when the circuit breaker of the system (outdoor unit)
is set to the ON position.
• It becomes a cause of a trouble.
▼
Wiring example
U1 U2
U1 U2 U3 U4
L1 L2 L3 N
U5 U6
L N
A B
A B
U1 U2 U3 U4
L1 L2 L3 N
U5 U6
U1 U2
L N
A B
A B
U1 U2
L N
A B
A B
U1 U2
L N
A B
Outdoor Power supply
380 V - 415 V ~, 50 Hz
Circuit breaker,
Power switch
Remote controller
Indoor unit
Outdoor Power supply
380 V - 415 V ~, 50 Hz
Remote controller
Remote controller
Indoor unit
Hot water module
Circuit breaker
Circuit breaker
Header outdoor
unit
Follower outdoor
unit
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor power supply
220 V - 240 V ~, 50 Hz
Earth
Earth
Earth
Earth
Group control
Pull box
Pull box
Pull box
Earth
terminal
Earth
terminal
Hot water module
In the case of connecting
two hot water modules.
41-EN
42-EN
Summary of Contents for MMW-AP0271LQ-E
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