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Air to Air Heat Exchanger
Switching between extra high and high
WARNING
Turn off the circuit breaker before switching between Extra High and High.
When switching to Extra High, connect the black lead wire
(Extra High) to the connector.
* The blue lead wire (High) is connected as factory default.
* Connect the black lead wire both to the supplying air motor
(white connector) and the exhausting air motor (red
connector).
* Refer to "Connection diagram" for the connection method.
REQUIREMENT
After connecting the black lead wire to the connectors, fix the
lead wires using the cord clip.
Remote controller wiring
• As the remote controller wire has non-polarity, there is no problem if connections to Air to Air Heat Exchanger
terminal blocks A and B are reversed.
Wiring diagram
Terminal block for remote
controller wiring of Air to Air
Terminal block
Heat Exchanger
A
A
B
B
Remote controller wire
(locally procured)
* For details of wiring / installation of the remote controller, refer to the Installation Manual enclosed to in the
remote controller.
21-EN
Installation Manual
Cord clip
Blue lead wire
(High)
*Factory default
Remote
controller
unit
Air to Air Heat Exchanger
– 11 –
9
Installation method for each 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. (Refer to page 14 to 16 for details.)
A
Air to Air Heat Exchanger system
(One Air to Air Heat Exchanger is used.)
Air to Air
Heat
Exchanger
A B
A B
A B
Exhaust air
(red connector)
B
Air to Air Heat Exchanger system
(Multiple Air to Air Heat Exchangers are used.)
Supply air
Air to Air
Air to Air
(white connector)
Heat
Heat
Exchanger
Exchanger
A B
A B
C
Air to Air Heat Exchanger system linked with air
conditioners
Outdoor
unit
U1 U2
U1 U2
Air
conditioner
A B
Remote controller for air conditioner
A B
RBC-AMT32E, RBC-AMS41E
Remote controller for the Air to Air Heat
Exchanger
NRC-01HE
System example
• Using the remote controller for the Air to Air Heat
Exchanger NRC-01HE, the unit can be started or stopped,
control the ventilation fan speed, and select the 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.
* The remote controllers for the air conditioners RBC-
AMT32E are not compatible with a system in which only
the Air to Air Heat Exchanger is used. Only on/off
Remote controller for the Air to Air
operation is available for RBC-AMS41E.
Heat Exchanger
NRC-01HE
Remote controller for air conditioner
RBC-AMS41E
• Using the remote controller for the Air to Air Heat
Exchanger NRC-01HE, the unit can be started or stopped,
control the ventilation fan speed, and select the ventilation
mode.
• If two remote controllers are used, the latter operation
overrides the former and their indications always reflect the
A B
result of the latter operation and the settings of the header
unit.
A B
* The remote controllers for the air conditioners RBC-
AMT32E are not compatible with a system in which only
Remote controller for the Air to Air
the Air to Air Heat Exchanger is used. Only on/off
Heat Exchanger
operation is available for RBC-AMS41E.
NRC-01HE
Remote controller for air
conditioner
RBC-AMS41E
• The remote controller for the air conditioner or the Air to Air
Heat Exchanger can be used to ON/OFF the whole
system.
• The remote controller for the Air to Air Heat Exchanger
NRC-01HE can be used to control the ventilation fan speed
and ventilation mode of the Air to Air Heat Exchanger.
• The remote controller for air conditioner RBC-AMT32E and
U1 U2
RBC-AMS41E cannot be used to control the ventilation fan
speed or ventilation mode of the Air to Air Heat Exchanger.
Air
Air to Air
Air to Air
Heat
• The remote controller for the air conditioner or the Air to Air
conditioner
Heat
Exchanger
Exchanger
Heat Exchanger can be used to ON/OFF the Air to Air Heat
Exchanger separately.
A B
A B
A B
* Setting modifications are required for separate control.
Refer to "11. Advanced control" on page 19.
A B
• If two remote controllers are used, the latter operation
overrides the former and their indications always reflect the
result of the latter operation. In addition, the indications of
the Air to Air Heat Exchanger always reflect the setting of
the unit with the smallest indoor unit address number.
Installation Manual
Operation
22-EN
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