Demand Control - Toshiba MD-VNK802HEXE Service Manual

Off control
[Function]
• Controls the indoor units individually. Connect the wires to the control circuit board of the indoor unit.
• In group control, connect the wires to the control circuit board of the indoor unit, and then set the CODE No.
to the connected indoor unit.
• Available when the external ON operation is not required but the OFF is required.
• Using the card switch box, card lock, etc. allows you to make sure to turn off the indoor unit.
• Inserting the card allows the ON / OFF operation using the remote controller.
• Removing the card stops a running indoor unit and disallows the ON / OFF operation using the remote
controller.
(1) Control items
1) External contact ON:
2) External contact OFF:
* If the above contact operation is not performed in the card switch box, convert it by b-contact relay.
(2) Operation
Follow the procedure below on the wired remote controller.
* Perform while the unit is stopped.
1
Press and hold the
2
Use the button to set the Code (DN) to
3
Use the button to set the setting to
4
Press the button.
5
Press the button. (Enters the normal stop status)
(3) Wiring
CN61
T10
(Yellow)
Indoor control
circuit board
Note: The length of the wire between the indoor control circuit board and relay should be 2 m or less.

Demand control

When the relay is turned on, the thermo is turned off forcedly.
• Wiring example
CN73
EXCT
(2P plug: Red)
Indoor control circuit board
Allows the ON / OFF operation using the remote controller
(A card is inserted into the card switch box)
Stops a running indoor unit
(Disallows the ON / OFF operation using the remote controller)
(A card is removed from the card switch box)
button + button +
Relay (locally procured)
Power supply
Relay (locally procured)
Relay coil signal
40
button for 4 seconds or longer.
.
.
* The contact in the figure is the one
indicated when a card is not inserted.
External contact (Card switch box, etc.: Locally procured)
Note: The length of the wire between the indoor
or outdoor control circuit board and relay
should be 2 m or less.