Dry Contact Wiring - LG ARNH963K2A2 Installation Manual

rouGHING-IN

Dry Contact Wiring

Dry contact - Wiring
dry Contact May Be Powered Using Two Methods
• Power Source wired directly to the Dry Contact Terminals 1
and 2 and subsequently providing power to the third party
binary switch (Figure 27).
• Power source wired to the third party binary switch (device)
providing power to the Dry Contact (Figure 28).
Procedure
Connect a CN_DRY with the third party binary contact and moni-
toring relays to CN-DRY terminals 1 through 4 as shown in either
Figure 27 or Figure 28. External wiring is provided by others.
36
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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG Life's Good" is a registered trademark of LG Corp.
DRY CONTACT
PCB
RY2
CN-CC
RY1
CN_DRY
N L
2 2
1 1
INPUT
AC 220V
Figure 27: Dry Contact - Direct Power Wiring
DRY CONTACT
DRY CONTACT
PCB
PCB
CN-CC
RY2
RY1
CN_DRY
L
N
2 1
2 1
Figure 28: Dry Contact - Indirect Power Wiring
Operation Display
4 4
Error Check Display
3 3
2 2
Dry contact
1 1
Controller
LG does not
supply this section
Operation Display
4 4
3 3
Error Check Display
2 2
1 1 Dry contact
Controller
AC 220V
LG does not
supply this section