Group Control - Toshiba MMD-VNK502HEXE Installation Manual

Air to Air Heat Exchanger with DX Coil Unit

Group control

In a group control, a remote controller can control up to maximum 8 units.
• For wiring procedure and wiring method of the individual line (Identical refrigerant line) system, refer to "Electric
Wiring" in this Manual.
• Wiring between indoor units in a group is performed in the following procedure.
Connect the indoor units by connecting the remote controller inter-unit wires from the remote controller terminal
blocks (A/B) of the indoor unit connected with a remote controller to the remote controller terminal blocks (A/B)
of the other indoor unit. (Non-polarity)
• For address setup, refer to the Installation Manual attached to the outdoor unit.
Changing the time before the Filter Sign lights up
The time before the Filter Sign lights up can be changed according to the installation conditions.
* Adjust this setting for the header unit.
• Select [01] in step 3 on page 18.
• Select a value from the table on the below in step 4 on page 19 according to the preferred time before the
Filter Sign lights up.
Code SET DATA 0000
Time before the
01 Filter Sign lights None
up
Setting the single operation of the Air to Air Heat Exchanger with
DX Coil Unit (Setting for the header air conditioner)
Single operation of the Air to Air Heat Exchanger with DX Coil Unit is possible when operation of the Air to Air Heat
Exchanger with DX Coil Unit is linked with that of the air conditioners.
Use the button of the wired remote controller.
* While the Air to Air Heat Exchanger with DX Coil Unit is in operation,
* Adjust this setting for the header air conditioner in the group when using a system equipped with the Air to Air
Heat Exchanger with DX Coil Unit and air conditioners.
* This setting is invalid when using a system equipped with the Air to Air Heat Exchanger with DX Coil Unit(s) only.
• Select [31] in step 3 on page 18.
• Select [0001] in step 4 on page 19.
Code SET DATA
31 Single operation of the fan
REQUIREMENT
Do not change this setting when the operation is linked by a signal from an external device or remotely controlled on
and off (page 16) by using Remote ON/OFF Adapter NRB-1HE (sold separately).
39-EN
Installation Manual
0001 0002 0003 0004
2500H
150H 5000H 10000H
(Factory
default)
VENT
is displayed on the remote controller.
0000 0001
Invalid
Valid
(Factory default)
Air to Air Heat Exchanger with DX Coil Unit
Setting of the unbalanced ventilation Fan speed
SA/EA unbalanced operation of the Air to Air Heat Exchanger with DX Coil Unit is possible.
Use the button of the remote controller.
* Adjust this setting for all the Air to Air Heat Exchanger with DX Coil Units when group operation is applied.
* Though RBC-AMT32E cannot be used, this setting can still be changed. For details, refer to "Ventilation Fan
speed setting" on page 21.
• Select [48] in step 3 on page 19.
• Select [0001: SA (High) > EA (Low) active] or [0002: SA (Low) < EA (High) active] in step 4 on page 19.
Code SET DATA
Unbalanced ventilation Fan
48
speed
Nighttime heat purge setting
Nighttime heat purge exhausts hot air in the room by bypass mode and reduces the cooling load in the morning.
Monitoring operation starts after [Setting value] x 1 hour(s). (1 to 48 hours)
* Adjust this setting for all the Air to Air Heat Exchanger with DX Coil Units in the group. (Only when the Air to Air
Heat Exchanger with DX Coil Unit(s) operates link with air conditioners)
* This setting is invalid for a system equipped with the Air to Air Heat Exchanger with DX Coil Unit only.
• Select [4C] in step 3 on page 18.
• Select a value from the table on the below in step 4 on page 19 according to the preferred time.
Code SET DATA
4C Nighttime heat purge
Setting for linked operation with external devices
Specifies the operation of the Air to Air Heat Exchanger with DX Coil Unit linked with the on/off operation of external
devices
* For group operation, adjust this setting for the Air to Air Heat Exchanger with DX Coil Unit to which the remote
ON/OFF adapter (NRB-1HE: sold separately) is connected.
• Select [4E] in step 3 on page 18.
• Select a value from the table on the below in step 4 on page 19.
Code SET DATA
Linked operation with external
4E
devices
0000: The Air to Air Heat Exchanger with DX Coil Unit starts/stops together with the starting/stopping of an external
device. (The latter operation of the remote controller or the switch of the external device overrides the former.)
0001: The Air to Air Heat Exchanger with DX Coil Unit starts together with the starting of an external device. Use the
remote controller to stop operation.
0002: The Air to Air Heat Exchanger with DX Coil Unit stops together with the stopping of an external device. Use the
remote controller to start operation.
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Installation Manual
0000 0001 0002
Invalid SA (High) > EA (Low) SA (Low) < EA (High)
active active
(Factory default)
0000 0001 to 0048
0000: Invalid
Start after [Setting value] x 1
hour(s)
(Factory default)
0000 0001 0002
ON/OFF linked
ON linked OFF linked
(Factory default)
EN
40-EN