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Air to Air Heat Exchanger with DX Coil Unit
Installation Manual
EN
Air to Air Heat Exchanger with DX Coil Unit
Installation Manual
Wiring between indoor and outdoor units
NOTE
An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically the header
unit.
Wiring example
U1 U2 U3 U4 U5 U6
L1 L2 L3 N
U1 U2 U3 U4
L1 L2 L3 N
U5 U6
U1 U2
L
A
N
B
A
U1 U2
L
A B
A
U1 U2
L
A
N
N
N
B
A B
B
B
U1 U2
L
A B
Outdoor Power supply
380 V, 50 Hz
Outdoor Power supply
380 V, 50 Hz
Circuit breaker
Circuit breaker
Earth
terminal
Header outdoor unit
Follower outdoor unit
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor unit
Earth
Earth
terminal
Indoor unit
Earth
Indoor unit
Earth
Indoor unit
Earth
Indoor power supply
220 V - 240 V ~, 50 Hz
Remote controller
Remote controller
Remote controller
Circuit breaker,
Power switch
Pull box
Pull box
Pull box
Group control
11
System configuration
Settings and electric wiring differ depending on the system configuration. Perform electric wring according to the
system examples shown in the table below.
System example
Operation
A. Air to Air Heat Exchanger with DX Coil Unit system
You can use the remote controller to ON/OFF running the Air to Air
Heat Exchanger with DX Coil Unit.
Remote controller for the Air to Air Heat Exchanger with DX Coil
Unit (NRC-01HE)
You can select the operation mode, start and stop the unit, control
the ventilation FAN speed, select the ventilation mode, and adjust
the temperature.
Main remote controller (RBC-AMT32E)
• You can select the operation mode, start and stop the unit, and
adjust the temperature.
• You cannot change the ventilation FAN speed or ventilation mode.
If two remote controllers are used, the latter operation
overrides the former and their indications always reflect the
result of the latter operation.
B. Air to Air Heat Exchanger with DX Coil Unit system linked with
air conditioners
You can use the remote controller to ON/OFF running Air
conditioners and Air to Air Heat Exchanger with DX Coil Unit.
Remote controller for the Air to Air Heat Exchanger with DX Coil
Unit (NRC-01HE)
You can select the operation mode, start and stop the unit, control
the ventilation FAN speed, select the ventilation mode, and adjust
the temperature.
Main remote controller (RBC-AMT32E)
• You can select the operation mode, start and stop the unit, and
adjust the temperature.
• You cannot change the ventilation FAN speed or ventilation mode.
If two remote controllers are used, the latter operation
overrides the former and their indications always reflect the
result of the latter operation.
* You can start and stop only the Air to Air Heat Exchanger with DX
Coil Unit in the system using NRC-01HE. For this operation, it is
necessary to change the settings.
* Setting modifications are required for separate control.
Refer to “13. Advanced control” on page 20.
* When the Air to Air Heat Exchanger with DX Coil Unit system
linked with indoor air conditioners is used, set the Air to Air Heat
Exchanger with DX Coil Unit as “Follower”, referring to “Setting
the address manually using the remote controller” in the
Installation Manual of the outdoor unit.
Outdoor unit
Remote controller NRC-01HE /
RBC-AMT32E
Air to Air Heat
Exchanger with
DX Coil Unit
Air to Air Heat
Exchanger with
DX Coil Unit
Air to Air Heat
Exchanger with
DX Coil Unit
Air to Air Heat
Exchanger with
DX Coil Unit
Outdoor unit
Remote controller NRC-01HE /
RBC-AMT32E
Air conditioner
Air conditioner
Air to Air Heat
Exchanger with
DX Coil Unit
Air to Air Heat
Exchanger with
DX Coil Unit
27-EN
28-EN
+00ET99805001-2.book Page 14 Tuesday, July 26, 2011 1:39 PM
