32
ComPac 9/04-12
Figure 8c. CommStat 3™ Wiring Diagram
COMPAC
®
II A/C
OR
COMPAC
®
I A/C
UNIT 1
COMMSTAT 3
™
TERMINAL BOARD
UNIT 2
C
NO
NC
NO
C
NC
ALARM
CONTACTS
DRY
HIGH BLDG TEMP
CONTACTS
DRY
NO
C
NC
LOW BLDG TEMP
OUTPUT
CONTACTS
DRY
POWER
ALARM
SMOKE ALARM
NOTE:
SMOKE ALARM
JUMPER
IF LINE VOLTAGE IS BELOW 220 VAC, USE THE 208 TRANSFORMER TAP.
LOR
G
W
C
Y
R
LOR
G
W
C
Y
R
NC
CONTACTS
DRY
NO
C
SMOKE
HP/LP LOCKOUT
CONTACTS
DRY
NO
NC
C
(INPUT) FROM
TERMINAL BOARD
#3
#2
#1
THERMISTOR CONTACTS
#4
(FACTORY
INSTALLED)
1.
24 VAC connections only.
2.
For immediate shutdown of air conditioner upon a signal from the smoke alarm, the jumper
between terminals 8 and 10 in the ComPac
®
I and ComPac
®
II units must be removed and
a jumper placed from terminals 8 and 3.
3.
When connecting a smoke alarm to the smoke alarm input terminals (normally closed),
remove the factory installed jumper wire and install the smoke alarm leads.
E3
E1
E4
E2
THERMOSTAT
SWITCH TERMINALS
