Leaving-On Prevention Control; Power Peak-Cut From Indoor Unit - Toshiba Super MMU-AP0091H Service Manual

n Leaving-ON prevention control
[Function]
• This function controls the indoor units individually. It is connected with cable to the control P .C. board of the
indoor unit.
• In a group control, it is connected with cable to the indoor unit (Control P .C. board), and the item code
set to the connected indoor unit.
• It is used when the start operation from outside if unnecessary but the stop operation is necessary.
• Using a card switch box, card lock, etc, the forgotten-OFF of the indoor unit can be protected.
• When inserting a card, start/stop operation from the remote controller is allowed.
• When taking out a card, the system stops if the indoor unit is operating and start/stop operation from the
remote controller is forbidden.
(1) Control items
1) Outside contact ON
2) Outside contact OFF : If the indoor unit is operating, it is stopped forcedly.
∗ When the card switch box does not perform the above contact operation, convert it using a relay with b
contact.
(2) Operation
Handle the wired remote controller switch in the following procedure.
∗ Use the wired remote controller switch during stop of the system.
1
Push concurrently SET +
2
Using the setup temp
3
Using the timer time
4
Push button.
SET
5
Push button. (The status returns to the usual stop status.)
(3) Wiring
CN61
T10
(YEL)
Indoor control P.C. board
Note) Determine the cable length between the indoor control P.C. board and the relay within 2m.
n Power peak-cut from indoor unit
When the relay is turned on, a forced thermostat-OFF operation starts.
• Wiring example
CN73
EXCT
(2P plug: RED)
Indoor control P.C. board
: The start/stop operation from the remote controller is allowed.
(Status that card is inserted in the card switch box)
(Start/Stop prohibited to remote controller)
(Status that card is taken out from the card switch box)
+ buttons for 4 seconds or more.
CL
or button, specify the item code
or button, set
Relay (procured locally)
1 1
2 2
3 3
4 4
5 5
6 6
Relay (procured locally)
1 1
2 2
Relay coil signal
to the setup data.
Power supply
Outside contact (Card switch box, etc: Procured locally)
Note) Determine the cable length between the indoor or
outdoor control P.C. board and the relay within 2m.
79
-
.
* In the figure, the contact indicates
a status that the card is taken out.
-
is