120
2) When the output signal of the external device is a no voltage a-contact (static signal)
• 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 operate together.
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 of “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, low/high, or Bypass mode/Heat exchange
mode 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 (5),
and the negative pole to terminal (1).
Specification of the external contact:
Contact for microcurrent
DC12V 1mA
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).
Specification of the external contact:
Contact for microcurrent
DC12V 1mA
(locally procured)
Remote ON/OFF Adapter NRB-1HE
CN705
Control circuit board of the
Air to Air Heat Exchanger
Yellow (2)
Red (3)
White (4)
Green (1)
Black (5)
SW4
As these terminals are not used, insulate them.
Running when SW4 is closed, and stopped when it is open.
(1), (5)
No voltage
a-contact
2m
1
ON
2
SW701
ON
OFF
Changing the
pulse/static
Pulse: ON
Static: OFF
Select “ON” for No.1
of SW701
(Factory default:
Static)
Summary of Contents for VN-M1000HE
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