External Input; Optional Parts; Rb Unit - Fujitsu AIRSTAGE J-II Design & Technical Manual

1-3.

RB UNIT

External input

Cooling priority/
Heating priority
1-3-1. EXTERNAL INPUT
● RB unit can be cooling priority/heating priority selection by using RB unit PCB CNA01 or CNA02.
● The "external input priority mode" must be set by changing DIP SW on PC board of RB unit.
● A twisted pair cable (22AWG) should be used. Maximum length of cable is 150m.
● Use an external input cable with appropriate external dimension, depending on the number of cables to be
installed.
● The wire connection should be separate from the power cable line.
INPUT SELECT
„ „
Use either one of these types of terminal according to the application. (Both types of terminals
cannot be used simultaneously.)
Dry contact terminal ([CNA01])
z „
When a power supply is unnecessary at the input device you want to connect, use the Dry
contact terminal ([CNA01]).
*a
connected unit
*a: Select very low current use contacts (usable at DC12V, DC1mA or less).
*b: The wiring is different from Apply voltage terminals. Be sufficiently careful when wiring.
External output Input select
Dry contact
-
Apply voltage
- (08 - 25) -
Connector
CNA01
CNA02
P.C.B
1
CNA01
2
GND
*b
External connect kit

(Optional parts)

UTY-XWZXZ6
UTY-XWZXZB