DSAFP
109
11-15. Important Information for Installation of
2 Separate Receiver Units
When using 2 receiver units to operate 1 or more
indoor units at the same time, follow the procedure
below to install them.
●
Installation method
1. If 2 remote controllers are installed, set one of
them as the “main remote controller” (setting at
time of factory shipment).
2. At the other remote controller, remove the receiver
nameplate and switch the DIP switch to “sub
remote controller.” Under these conditions, the
receiver unit functions as the sub receiver unit.
* The TIMER lamp lights only at the remote con-
troller that receives the signal.
●
Basic wiring diagram
* When connecting the wires, be careful not to
wire incorrectly.
(Incorrect wiring will damage the unit.)
●
Using 2 separate receiver units to control 1 indoor
unit:
●
Using 2 separate receiver units to control a group
of multiple indoor units:
* The main and sub receiver units will operate
regardless of the indoor unit in which they are
installed.
* Use wires that are 0.5 mm
2
– 2 mm
2
in diameter.
* The wiring length must not exceed 400 m.
Separate
receiver unit
(main)
Separate
receiver unit
(sub)
(optional)
Remote controller
terminal board
Wire of the receiver unit (field supply)
Indoor
unit
1
2
1 2
2
1
* Use field wiring cables with a
cross-sectional area of at least
0.5mm
2
to 2mm
2
.
* The maximum total length of
crossover cables must be no
longer than 400m.
Ground
1
2
1 2
1
2
1 2
1
2
1
2
Indoor
unit No. 1
Indoor
unit No. 2
Indoor
unit No. 3
Indoor
unit No. 8
Remote controller
terminal board
Separate
receiver unit
(main)
(optional)
Separate
receiver unit
(sub)
(optional)
Crossover cables of the
receiver unit for the
control groups (field supply)
Ground
Ground
Ground
Ground
04-393 DC INV Tech p 64-110 12/13/04 11:35 AM Page 109
