Toshiba MMU-AP0074YH-E Service Manual page 53

▼ Ventilating fan control from remote controller
[Function]
• The start / stop operation can be operated from the wired remote controller when air to air heat exchanger
or ventilating fan is installed in the system.
• The fan can be operated even if the indoor unit is not operating.
• Use a fan which can receive the no-voltage A contact as an outside input signal.
• In a group control, the units are collectively operated and they can not be individually operated.
1. Operation
Handle a wired remote controller in the following procedure.
* Use the wired remote controller during stop of the system.
* Be sure to set up the wired remote controller to the header unit. (Same in group control)
* In a group control, if the wired remote controller is set up to the header unit, both header and follower units
are simultaneously operable.
1
Push concurrently
The unit No. displayed firstly indicates the header indoor unit address in the group control.
In this time, the fan of the selected indoor unit turns on.
2
Every pushing
successively.
In this time, the fan of the selected indoor unit only turns on.
3
Using the setup temp
4
Using the timer time
The setup data are as follows:
SET DATA
5
Push button. (OK if display goes on.)
• To change the selected indoor unit, go to the procedure
• To change the item to be set up, go to the procedure
6
Pushing returns the status to the usual stop status.
2. Wiring
Relay (DC12 V, procured locally)
Corresponds to the relay up to one that
the rated current of the operation coil is
approx. 75 mA
Indoor control
P.C. board
Note) Determine the cable length between the indoor
control P.C. board and the relay within 2 m.
+ + buttons for 4 seconds or more.
button, the indoor unit numbers in group control are displayed
or button, specify the CODE No.
or button, select the SET DATA. (At shipment:
Handling of operation of air to air heat exchanger or ventilating fan
Unavailable (At shipment)
Outside control
input of fan
To terminal
31
Available
2
).
3
).
Compact 4-way Cassette type
1-way Cassette type (SH)
Concealed Duct Standard type
Slim Duct type
Ceiling type
Corresponds up to a relay in which rated current of the
operation coil is approx. 75 mA
Other type models:
Correspond up to a relay in which rated current of the
operation coil is approx. 16 mA (Does not
correspond to a terminal block type relay on the market.)
52
.
)
model :