Advanced System - Toshiba MMD-VNK502HEXE Installation Manual

Air to Air Heat Exchanger with DX Coil Unit
12

Advanced System

WARNING
• Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and
laws. Use of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage,
smoking and/or a fire.
• When carrying out electric connection, use the wire specified in the Installation Manual and connect and fix the wire
securely to prevent them applying external force to the terminals. Improper connection of fixing may result in fire.
• Electrical wiring work shall be conducted according to law and regulation in the community and Installation Manual.
Failure to do so may result in electrocution or short circuit.
REQUIREMENT
For the connecting procedure and electric wiring of External Input (sold separately), refer to the Installation Manual of
Remote On/Off Adapter NRB-IHE.
1
Operating together with an external device (separately sold External Input)
REQUIREMENT
Do not change the "Setting the single operation of the Air to Air Heat Exchanger with DX Coil Unit (Setting for the header
air conditioner)" on page 20.
* Operating together if a command is sent to one of the units in the group.
• When a remote controller is used with the Air to Air Heat Exchanger with DX Coil Unit
The latter operation of the remote controller or the switch of the external device overrides the former.
(Single operation is possible.)
• When no remote controller is used with the Air to Air Heat Exchanger with DX Coil Unit
The operation of the Air to Air Heat Exchanger with DX Coil Unit is confined to that together with the external
device.
(Single operation is not possible.)
1) When the output signal of the external device is DC12V or DC24V (static signal)
(locally procured)
(1), (2)
DC12V
DC24V
(non polarity)
• Transmission wire used to extend must be locally procured: Non-polarity, 2-core wire 0.5mm
Maximum length: Refer to the external device's manual.
• Insert the remote ON/OFF adapter NRB-1HE (sold separately) into connector CN706 (2P).
• If a command is sent to one of the units in the group, all the air conditioners and the Air to Air Heat
Exchanger with DX Coil Unit operate together.
31-EN
Installation Manual
Remote ON/OFF adapter NRB-1HE
CN706
Blue (1)
Orange (2)
Control circuit board of the Air to
Air Heat Exchanger with DX Coil
2m
Unit
2
Air to Air Heat Exchanger with DX Coil Unit
2) When the output signal of the external device is a no voltage a-contact (static signal)
(locally procured)
(1), (5)
No voltage
a-contact
SW4
As these terminals are not used, insulate them.
Running when SW4 is closed, and stopped when it is open.
• Transmission wire used to extend must be locally procured: Non-polarity, shielded wire (H05 VVC4V5-K
or 60227 IEC 74) 0.5mm 2
Maximum length: 50m
• Insert the remote ON/OFF adapter NRB-1HE (sold separately) into connector CN705 (5P).
• If a command is sent to one of the units in the group, all the air conditioners and the Air to Air Heat
Exchanger with DX Coil Unit operate together.
If a polar contact such as a photocoupler is used with a no
voltage a contact, connect the positive pole to terminal (5)
and the negative pole to terminal (1).
2
Operating together with a pulse transmission device such as a building management system
(separately sold External Input)
1) Select "Pulse: ON" for No.1 of SW701 (Changeover switch for pulse/
static). (Factory default: "Static")
2) Insert the remote ON/OFF adapter NRB-1HE (sold separately) into
connector CN705 or CN706. (For the input signal, refer to "1).When
the output signal of the external device is DC12V or DC24V (static
signal)" or "2).When the output signal of the external device is a no
voltage a-contact (static signal)" above.
* The pulse width should be 200msec or more.
3
Switching the remote controller between invalid/valid or low/high from an external device
(separately sold External Input)
* Perform connection with one of the units in the group.
* Static signal only
Insert the remote ON/OFF adapter NRB-1HE (sold separately) into connector CN705.
• Transmission wire used to extend must be locally procured: Non-polarity, shielded wire (H05 VVC4V5-K or
60227 IEC 74) 0.5mm 2
Maximum length: 50m
If a polar contact such as a photocoupler is used with a no
voltage a-contact, connect the positive pole to terminal (2),
(3) or (4) and the negative pole to terminal (1).
– 16 –
Installation Manual
Remote ON/OFF adapter NRB-1HE
CN705
Green (1)
Yellow (2)
Red (3)
White (4)
Black (5)
Control circuit board of the
Air to Air Heat Exchanger
2m
with DX Coil Unit
Specification of the external contact:
Contact for microcurrent
DC12V 1mA
SW701
Changing the
ON
pulse/static
ON
Pulse: ON
Static: OFF
OFF
Select "ON" for No.1
1 2
of SW701
(Factory default:
Static)
Specification of the external contact:
Contact for microcurrent
DC12V 1mA
EN
32-EN