International comfort products F8MVL Installation Instructions Manual page 21

BLK BLK
WHT WHT
GND
115-VOLT FIELD-
SUPPLIED
FUSED
DISCONNECT
Figure 26 − Example of Variable Speed Furnace Control for Variable Speed ECM Blower Motor
SW1 SETUP
SWITCHES AND
BLOWER OFF-
DELAY
COMMUNICATION
CONNECTOR
24-V THERMOSTAT
TERMINALS
STATUS AND COMM
LED LIGHTS
PL1 – LOW VOLTAGE MAIN
HARNESS CONNECTOR
3-AMP FUSE
TRANSFORMER 24-VAC
CONNECTIONS
115-VAC (L2) NEUTRAL
CONNECTIONS
441 01 2122 01
Figure 25 − Example of Field Wiring Diagram
NOTE 2
W
FIVE
WIRE
THREE-WIRE
HEATING-
ONLY
W2
COM
W/W1
NOTE 1
Y/Y2
JUNCTION
BOX
R
CONTROL
BOX G
24-VOLT
TERMINAL
BLOCK
FURNACE
MODEL PLUG
OUTDOOR
CONNECTOR
AIR TEMP
CONNECTOR
115-VAC (L1) LINE
VOLTAGE CONNECTIONS
Specifications are subject to change without notice.
1-STAGE
THERMOSTAT
C Y R G
TERMINALS
CONDENSING
UNIT
NOTES: 1. Connect Y/Y2-terminal as shown for proper operation.
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.
AIR CONDITIONING (A/C) &
CONTINUOUS FAN (CF)
AIRFLOW SETUP SWITCHES
EAC-1 TERMINAL
(115-VAC 1.0 AMP MAX.)
FIELD 24-VOLT WIRING
FIELD 115-, 208/230-, 460-VOLT WIRING
FACTORY 24-VOLT WIRING
FACTORY 115-VOLT WIRING
FIELD-SUPPLIED
FUSED DISCONNECT
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 SOFTWARE
IGNITER & INDUCER VERSION
MOTOR CONNECTOR
A95236
L14F003
21