Lennox ComfortSense 8500 Installation And Setup Manual page 7

CS8500 ZONING (14X57 OR 14X58) - (TEMPERATURE SENSOR AND
RELAYS CONNECTIONS)
HEAT RELAY
DO SG HR FR RH R
Figure 2. CS8500 Connections (14X57 or 14X58)
CS8500 ZONING (14X57 OR 14X58) - (ZONE LINK AND DAMPER ACTUATOR)
24VAC HOT
COM
2-10VDC
ZONE DAMPER
ACTUATOR B8
NEXT
ZONE
2 CONDUCTOR #20 (MIN)
TSTAT
NEXT CS8500
SENSOR
LENNOX COMM
CABLE (PURPLE)
DO SG
Figure 3. CS8500 Zoning Connections (14X57 or 14X58)
FAN RELAY
COM
24VAC HOT
T T OC OC CM-CM+ C
CS8500 ZONING
2 CONDUCTOR #18 (MIN) TSTAT
CONNECT SHIELDS
ZONE BUS
BLACK
RED
T OC OC CM-CM+ C
HR FR RH R T
CS8500 ZONING
7
24VAC TRANSFORMER
WITH OVERCURRENT
PROTECTION
REQUIRED (6.5VA/
ZONE)
External
Temperatures
Sensor (optional)
24VAC TRANSFORMER
WITH OVERCURRENT
PROTECTION
REQUIRED (6.5VA/
ZONE)
COM
24VAC HOT
BLACK ZONE BUS-
ZONE BUS+
RED
ZONE LINK