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FIVE
WIRE
THREE-WIRE
HEATING-
ONLY
BLK
BLK
WHT
WHT
GND
115-VOLT FIELD-
JUNCTION
SUPPLIED
BOX
FUSED
CONTROL
DISCONNECT
FURNACE
MODEL PLUG
CONNECTOR
SW1 SETUP
SWITCHES AND
BLOWER OFF-
DELAY
AIR CONDITIONING
(A/C) AIRFLOW
SETUP SWITCHES
24-V THERMOSTAT
TERMINALS
STATUS AND COMM
LED LIGHTS
3-AMP FUSE
TRANSFORMER 24-VAC
CONNECTIONS
115-VAC (L2) NEUTRAL
CONNECTIONS
PL1 – LOW VOLTAGE MAIN
HARNESS CONNECTOR
AND ECM BLOWER
HARNESS CONNECTOR
Fig. 26 - - Variable Speed Furnace Control for ECM Blower Motor
NOTE 2
W
C
Y
W2
COM
W/W1
NOTE 1
Y/Y2
R
BOX
G
24-VOLT
NOTES: 1.
Connect Y/Y2-terminal as shown for proper operation.
TERMINAL
BLOCK
2.
Some thermostats require a "C" terminal connection as shown.
3.
If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
Fig. 25 - - Field Wiring Diagram
COMMUNICATION
CONTINUOUS FAN
CONNECTOR
(CF) AIRFLOW
SETUP SWITCHES
PART NUMBER AND
DATE CODE WWYY
EAC-1 TERMINAL
SOFTWARE
(115-VAC 1.0 AMP MAX.)
VERSION
FIELD 24-VOLT WIRING
FIELD 115-, 208/230-, 460-VOLT WIRING
FACTORY 24-VOLT WIRING
FACTORY 115-VOLT WIRING
1-STAGE
THERMOSTAT
R
G
FIELD-SUPPLIED
TERMINALS
FUSED DISCONNECT
CONDENSING
UNIT
OUTDOOR
SW4 SETUP
AIR TEMP
SWITCHES
CONNECTOR
115-VAC (L1) LINE
VOLTAGE CONNECTIONS
24
208/230- OR
460-VOLT
THREE
PHASE
208/230-
VOLT
SINGLE
PHASE
GND
HUMIDIFIER
TERMINAL (24-VAC
0.5 AMP MAX.
ACRDJ – AIR
CONDITIONING
RELAY DISABLE
JUMPER
FLASH
UPGRADE
CONNECTOR
(FACTORY
ONLY)
PL2 – HOT SURFACE
IGNITER & INDUCER
MOTOR CONNECTOR
A95236
A11618
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