Ventilation Mode Setting - Toshiba MMD-VNK502HEXE-TR Installation Manual

Air to Air Heat Exchanger with DX Coil Unit
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.

Ventilation mode setting

The setting of the ventilation mode can be changed when using the remote controller for air conditioners
(RBC-AMT32E).
* 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 [EA] in step 3 on page 18.
• Select a value from the table on the below in step 4 on page 19.
Code SET DATA
EA Changing the ventilation mode
41-EN
Installation Manual
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)
0001 0002
Automatic mode
Heat Exchange mode
(Factory default)
Air to Air Heat Exchanger with DX Coil Unit
– 21 –
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 18.
• Select a value from the table on the below in step 4 on page 19.
Code SET DATA
Changing the ventilation
EB
amount
* When [0004] is selected, adjust setting of the unbalanced ventilation Fan speed (Code: 48).
Setting for changing the operation output
Terminal 1 and 2 on 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 18.
• Select a value from the table below in step 4 on page 19.
Code SET DATA 0000
ON during
Changing the normal
operation
ED operation
output (Factory
default)
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.
* Contact is off during switching the damper (Heat exchange mode / Bypass mode) regardless of the selected
value.
Installation Manual
0002 0003 0004
High
Low Unbalanced
(Factory default)
0001 0002 0003
ON during
normal ON during
ON when SA ON when EA
operation or nighttime heat
fan is running fan is running
nighttime heat purge operation
purge operation
0004
42-EN