Honeywell PC8900A Manual page 13

CO MONITOR
3
2
PC8900
1
2
3
4
5
L2
1
L1
(HOT)
SYSTEM
TRANSFORMER
HUMIDIFIER OR
2
DEHUMIDIFIER
EQUIPMENT
4
VENTILATION
EQUIPMENT
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
1
DURING INSTALLER SETUP, CONFIGURE PC8900 FOR HUMIDITY CONTROL IN HEATING MODE
2
(HUMIDIFIER) OR COOLING MODE (DEHUMIDIFIER).
3
W8900 ALLOWS CONNECTION OF A CO MONITOR WITH UNCOMMITTED CONTACTS.
4
SEE VENTILATION INSTRUCTIONS FOR WIRING.
5
GROUNDING THE GND TERMINAL IS NOT RECOMMENDED.
6
CONNECTION FOR CM8900A REMOTE COMMUNICATIONS MODULE.
Fig. 15. Hookup diagram in oil heating/electric cooling system (oil primary has its own transformer).
W8900A,C
CO
2
1
6
2
3
4
GND
C
R
RH
RC
HUM
HUM
VNT
VNT
2
13
C7189A REMOTE AIR
TEMPERATURE SENSOR
C7100 DISCHARGE AIR
TEMPERATURE SENSOR
S1
S
T1
T
OUT
OUT
LED
FAN RELAY
G
Y2
STAGE 1
Y1 COOL RELAY
W1
W2
L1
(HOT)
L2
C7089A OUTDOOR AIR
TEMPERATURE SENSOR
T
T
OIL PRIMARY
1
M4490D
68-0173—3