Carrier 59TN6B - Page 39

39
W/W1
W2
COM
Y/Y2
R
G
A11401
Fig. 37 -- Typical Two--Stage Field Wiring Diagram
24-V THERMOSTAT
TERMINALS
PL2 – HOT SURFACE
IGNITER & INDUCER
MOTOR CONNECTOR
115-VAC (L2) NEUTRAL
CONNECTIONS
115-VAC (L1) LINE
VOLTAGE CONNECTIONS
EAC-1 TERMINAL
(115-VAC 1.0 AMP MAX.)
PL1 – LOW VOLTAGE MAIN
HARNESS CONNECTOR
TRANSFORMER 24-VAC
CONNECTIONS
3-AMP FUSE
STATUS AND COMM
LED LIGHTS
SW1 SETUP
SWITCHES AND
BLOWER OFF-
DELAY
MODEL PLUG
CONNECTOR
AIR CONDITIONING
(A/C) AIRFLOW
SETUP SWITCHES
COMMUNICATION
CONNECTOR
CONTINUOUS FAN
(CF) AIRFLOW
SETUP SWITCHES
OUTDOOR
AIR TEMP
CONNECTOR
HUMIDIFIER
TERMINAL (24-VAC
0.5 AMP MAX.
FLASH
UPGRADE
CONNECTOR
(FACTORY
ONLY)
SW4 SETUP
SWITCHES
SOFTWARE
VERSION
PART NUMBER AND
DATE CODE WWYY
ACRDJ – AIR
CONDITIONING
RELAY DISABLE
JUMPER
PL3 – ECM BLOWER
HARNESS
CONNECTOR
A11617
Fig. 38 -- Example of Variable Speed Furnace Control