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Ventilation Fan speed setting
The setting of the ventilation Fan speed can be changed when using the remote controller for air conditioners
(RBC-AMT32E, RBC-AMS41E) or using the system without the remote controller.
* Adjusting this setting is necessary for the header unit when using a system equipped with the Air to Air Heat
Exchanger with DX Coil Unit only (RBC-AMT32E can not be used.), and for the Air to Air Heat Exchanger with
DX Coil Unit with the smallest address number when using a system equipped with the Air to Air Heat Exchanger
with DX Coil Unit and air conditioners.
* When the remote controller NRC-01HE is installed, this setting is invalid. (The remote controller can be used for
operation.)
• Select [EB] in step 3 on page 70.
• Select a value from the table on the below in step 4 on page 70.
* When [0004] is selected, adjust setting of the unbalanced ventilation Fan speed (Code: 48).
Setting for changing the operation output
Terminals 1 and 2 on the terminal block 3 for external devices can be used to connect an auxiliary fan or to use the
operation output for operating external devices connected to the terminal. It can be specified when the operation
output is used.
* Apply this setting for the Air to Air Heat Exchanger with DX Coil Unit to which an external device is connected.
• Select [ED] in step 3 on page 70.
• Select a value from the table below in step 4 on page 70.
* Contact is off during switching the damper (Heat exchange mode / Bypass mode) regardless of the selected
value.
Code
SET DATA
0002
0003
0004
EB
Changing the ventilation
amount
High
(Factory default)
Low
Unbalanced
Code
SET DATA
0000
0001
0002
0003
0004
ED
Changing the
operation
output
ON during
normal
operation
(Factory
default)
ON during
normal
operation or
nighttime heat
purge operation
ON during
nighttime heat
purge operation
ON when SA
fan is running
ON when EA
fan is running
0000: Contact is on only during normal operation.
* Contact is off during nighttime heat purge operation.
* Contact is off during cold mode (while the temperature is below -10 °C)
0001: Contact is on during normal operation and nighttime heat purge operation.
* Contact is off when nighttime heat purge operation is on standby. (paused before the monitoring operation of
nighttime heat purge operation starts)
* Contact is off during cold mode (while the temperature is below -10 °C)
0002: Contact is on during nighttime heat purge operation.
* Contact is off during normal operation or when nighttime heat purge operation is on standby. (paused before the
monitoring operation of nighttime heat purge operation starts)
* Contact is off during cold mode (while the temperature is below -10 °C)
0003: Contact is on only when SA fan is running.
0004: Contact is on only when EA fan is running.
Abnormal signal / bypass mode signal output setting
Terminals 3 to 5 for external output can be used to detect an abnormal signal / bypass mode signal output. Output
signal to be detected can be selected.
* Adjust this setting for the Air to Air Heat Exchanger with DX Coil Unit to which an external output is connected.
* When [0000] is selected, signal transfer is on if one of the units in the group has trouble.
• Select [EE] in step 3 on page 70.
• Select a value from the table on the below in step 4 on page 70.
Code
SET DATA
0000
0001
EE
Changing the abnormal signal /
bypass mode signal output
ON when an abnormal signal is
detected
(Factory default)
ON when the bypass mode signal
is detected
0000: Signal transfer is on when an abnormal signal output is detected.
0001: Signal transfer is on when the bypass mode signal output is detected.
* Signal transfer is on during nighttime heat purge operation.
* Signal transfer is off when the nighttime heat purge operation is on standby. (paused before the monitoring
operation of the nighttime heat purge operation starts)
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