Design Technical Manual

Table Of Contents
When connected to Dry contact terminals of multiple RB units with a connected unit, insulate
each RB unit with relay, etc. as shown on below example.
RB unitRB unitRB unit
Power supply for relay
Input device
K1 - K3 : Relay
(Device for DC Current)
P.C . B
P.C . B
P.C . B
K1
K2
K3
CNA
01
CNA
01
CNA
01
NOTE :
If power is connected to dry contact on indoor units, damage will occur.
- (08 - 56) -
EXTERNAL INPUT
& OUTPUT
EXTERNAL INPUT
& OUTPUT