Toshiba VN-M1500HE Installation Manual page 16

Air to Air Heat Exchanger
Central control system (When controlling the Air to Air Heat Exchanger only)
D
For the settings of the central control address, refer to the Installation Manual of the central control device.
Power supply
Central controller
L N
U1 U2
U3 U4
Central control wiring
Air to Air Heat Air to Air Heat
Exchanger Exchanger
U1 U2 U1
A B
L N U3 U4 L N U3
Power Power
supply supply
Remote controller Remote controller
A B
(header) (follower)
Remote controller
inter-unit wiring
* Central control wiring must be connected to the header Air to Air Heat Exchanger unit only.
* For group control, install inter-unit wiring between the units.
* Up to 8 units can be installed for group control.
Changing the group address (No.4 of SW703)
Settings for changing the group address are necessary. Select "Header: ON" on the header unit of each group
which central control wiring is connected to. Select "Follower" for the other units.
* Settings of the header unit reflect the indications of the remote controller. (Factory default: Follower)
Changing the indoor unit address (No.1 to 4 of SW702, No.1 and 2 of SW703)
Settings for changing the indoor unit address are necessary. Do not duplicate the value. (1 to 64)
* The header unit does not need to be selected as "1". (Factory default: 1)
Changing the terminator (No.1 of SW301)
Settings for changing the terminator are necessary. Select "ON" for one of the header unit.
(Factory default: OFF)
100 Ω: ON (1 header unit only)
None: OFF (the other units)
29-EN
Installation Manual
Air to Air Heat Air to Air Heat
Exchanger Exchanger
U2 U1 U2
A B A B
U4 L N U3 U4 L N
Power Power
supply supply
Remote controller Remote controller
A B A B
(header) (follower)
Remote controller
inter-unit wiring
Changing the
terminator
100 Ω: ON
None: OFF
(Factory default: OFF)
Air to Air Heat Exchanger
– 15 –
Central control system (When controlling the air conditioner and the Air to Air Heat Exchanger
E
separately)
For the settings of the central control address, refer to the Installation Manual of the central control device.
Power supply
L1 L2 L3 N
U1 U2 U3 U4 U5 U6
Control wiring
between indoor and
outdoor units
U1 U2
A B
U3 U4
Indoor unit
U1 U2
L N
Power
A B
supply
Remote controller
(header)
* Central control wiring of the Air to Air Heat Exchanger is necessary only for the header unit.
* For group control, install inter-unit wiring between the units.
* Up to 8 units can be installed for group control.
Changing the group address (No.4 of SW703)
Settings for changing the group address are necessary. Select "Header: ON" on the header unit of each group
which central control wiring is connected to. Select "Follower" for the other units.
* When "Header: ON" is selected, "Individual: ON" will be selected if only one Air to Air Heat Exchanger is
connected to this system.
SW301
* Settings of the header unit reflect the indications of the remote controller. (Factory default: Follower)
ON
ON
Changing the indoor unit address (No.1 to 4 of SW702, No.1 and 2 of SW703)
OFF Settings for changing the indoor unit address are necessary. Do not duplicate the value. (1 to 64)
1 2
* The header unit does not need to be selected as "1". (Factory default: 1)
Changing the terminator (No.1 of SW301)
* The settings do not need to be adjusted.
Power supply
Outdoor unit Central controller
L N
U1 U2
Central
U3 U4
control
wiring
Control wiring between
Central control wiring
indoor units
Air to Air Heat
Indoor unit
Exchanger
A B U1 U2 A B
L N L N
Power Power
supply supply
Remote controller Remote controller
A B A B
(follower) (header)
Remote controller
inter-unit wiring
Installation Manual
Air to Air Heat
Exchanger
U1 U2 U1 U2
A B A B
U3 U4 L N U3 U4
Power
supply
Remote controller
A B A B
(follower)
Remote controller
inter-unit wiring
30-EN