System Configuration - Toshiba MMD-VNK502HEXE Installation Manual

Air to Air Heat Exchanger with DX Coil Unit
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
Outdoor Power supply
380 V - 415 V ~, 50 Hz
380 V ~, 60 Hz
Circuit breaker
Header outdoor unit
Earth
L1 L2 L3 N U1 U2 U3 U4 U5 U6
terminal
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor unit Indoor unit
Earth
Earth
L N U1 U2 A B
Indoor power supply
220 V - 240 V ~, 50 Hz
A B
220 V ~, 60 Hz
Remote controller
Circuit breaker, Pull box
Power switch
27-EN
Installation Manual
Outdoor Power supply
380 V - 415 V ~, 50 Hz
380 V ~, 60 Hz
Circuit breaker
Follower outdoor unit
Earth
L1 L2 L3 N U1 U2 U3 U4 U5 U6
terminal
Control wiring between outdoor units
Indoor unit Indoor unit
Earth Earth
L N U1 U2 A B L N U1 U2 A B L N
A B A B
Remote controller Remote controller
Pull box Pull box
Group control
Air to Air Heat Exchanger with DX Coil Unit
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.
A. Air to Air Heat Exchanger with DX Coil Unit system
Outdoor unit
Air to Air Heat
Air to Air Heat
Exchanger with Exchanger with
DX Coil Unit DX Coil Unit
B. Air to Air Heat Exchanger with DX Coil Unit system linked with
air conditioners
Outdoor unit
Air conditioner Air conditioner
U1 U2 A B
– 14 –
System example
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)
Air to Air Heat Air to Air Heat
• You can select the operation mode, start and stop the unit, and
Exchanger with Exchanger with
adjust the temperature.
DX Coil Unit DX Coil Unit
• 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.
Remote controller NRC-
01HE/RBC-AMT32E
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
Air to Air Heat Air to Air Heat
adjust the temperature.
Exchanger with Exchanger with
• You cannot change the ventilation FAN speed or ventilation mode.
DX Coil Unit DX Coil Unit
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
Remote controller NRC- Coil Unit in the system using NRC-01HE. For this operation, it is
01HE/RBC-AMT32E 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.
Installation Manual
Operation
EN
28-EN