Connection With Other Equipments; Memory Back Up Switch; Test Run - Sanyo CH2442 Installation Instructions Manual

9-6. Connection with Other Equipments

System controller
Input/output
ON/OFF output
Alarm output
Potential tree
A contact, static
(relay output)
Contact capacity
DC 30V, 0.5A
All ON input
All OFF input
Pulse (photo
compler input)
Contact capacity
DC 24V, 10mA

9-7. Memory Back Up Switch

Check the back up switch is ON for back side of PCB
by system controller.

9-8. Test Run

(1) Power on for all indoor units. Next, power on for
system controller.
will flash, checking the indoor unit address
automatically.
(2) If group No. displayed on system controller is not
same as indoor unit No.* which is connected, see
Fig. 9-5 and setting again.
*In case of group control, main unit No. only.
9 9 9 9 9
SC
Terminal Terminal
CPEV
ON/OFF AWG#16
Alarm
Output common
ALL ON (+)
CPEV
AWG#16
CX
ALL OFF (+)
TX
Input common
Equipment
Example Input/output
Wire length:
less than 330 ft.
Pulse width:
+24
more than
984 ft./sec.
Wire length:
less than 330 ft.
COM
2055_M_I
78
S4359146
Back up switch
Back up battery
2056_M_I