11
115-VOLT FIELD-
SUPPLIED
FUSED
DISCONNECT
JUNCTION
BOX
CONTROL
BOX
24-VOLT
TERMINAL
BLOCK
THREE-WIRE
HEATING-
ONLY
FIVE
WIRE
NOTE 2
NOTE 1
1-STAGE
THERMOSTAT
TERMINALS
FIELD-SUPPLIED
FUSED DISCONNECT
CONDENSING
UNIT
FURNACE
COM
R
WC Y RG
GND
GND
FIELD 24-VOLT WIRING
FIELD 115-, 208/230-, 460-VOLT WIRING
FACTORY 24-VOLT WIRING
FACTORY 115-VOLT WIRING
Connect Y/Y2-terminal as shown for proper operation.
Some thermostats require a "C" terminal connection as shown.
If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
208/230- OR
460-VOLT
THREE
PHASE
208/230-
VOLT
SINGLE
PHASE
WHT
BLK
WHT
BLK
W/W1
W2
Y/Y2
G
NOTES: 1.
2.
3.
A95236
Fig. 15 --- Field Wiring
FLASH
UPGRADE
CONNECTOR
(FACTORY
ONLY)
ACRDJ AIR
CONDITIONING
RELAY DISABLE
JUMPER
HUMIDIFIER
TERMINAL (24-VAC
0.5 AMP MAX.
CONTINUOUS FAN
(CF) AIRFLOW
SETUP SWITCHES
COMMUNICATION
CONNECTOR
AIR CONDITIONING
(A/C) AIRFLOW
SETUP SWITCHES
MODEL PLUG
CONNECTOR
SW1 SETUP
SWITCHES AND
BLOWER OFF-
DELAY
STATUS AND COMM
LED LIGHTS
3-AMP FUSE
TRANSFORMER 24-VAC
CONNECTIONS
PL3 ECM BLOWER
HARNESS
CONNECTOR
PL1 LOW VOLTAGE MAIN
HARNESS CONNECTOR
EAC-1 TERMINAL
115-VAC 1.0 AMP MAX.
115-VAC (L1) LINE
VOLTAGE CONNECTIONS
115-VAC (L2) NEUTRAL
CONNECTIONS
PL2 HOT SURFACE
IGNITER & INDUCER
MOTOR CONNECTOR
24-V THERMOSTAT
TERMINALS
FUTURE
APPLICATIONS
DATE CODE XXXXN
A06494
Fig. 16 --- Variable Capacity Furnace Control
355BAV