Fujitsu Airstage J-II Series Design & Technical Manual page 830

z Dry contact terminal ([CNA02], [CNA04])
„
When a power supply is not required, use the Dry contact terminal ([CNA02], [CNA04]).
*c *c
Ch 1 Ch 2
*c
Ch 3
connected unit
*c: Select very low current use contacts (usable at DC 12 V, DC 1 mA or less).
*d: The wiring is different from Apply voltage terminals. Be sufficiently careful when wiring.
When connected to Dry contact terminals of multiple indoor units with a connected unit,
insulate each indoor unit with relay, etc. as shown on below example.
Input device 1
Input device 2
NOTE :
● If power is connected to dry contact on indoor units, damage will occur.
K1
K4
K2
K5
K3
K6
K1 - K6 : Relay
(Device for DC Current)
- (08 - 10) -
P.C.B
1
CNA02
2
3
GND
*d
1
CNA04
2
P.C.B
CNA02
P.C.B
CNA02
P.C.B
CNA02