ICP F9MVE0401410A - Page 8

SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: (F/G)9MVE
Specifications subject to change without notice.
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Figure 4 Example of Variable Speed Furnace Control for ECM Blower Motor
24ïV THERMOSTAT
PL2 ï HOT SURFACE
IGNITER & INDUCER
MOTOR CONNECTOR
115ïVAC (L2) NEUTRAL
CONNECTIONS
115ïVAC (L1) LINE
VOLTAGE CONNECTIONS
EACï1 TERMINAL
(115ïVAC 1.0 AMP MAX.)
PL1 ï LOW VOLTAGE MAIN
HARNESS CONNECTOR
TERMINALS
HARNESS CONNECTOR
TRANSFORMER 24ïVAC
CONNECTIONS
3ïAMP FUSE
STATUS AND COMM
LED LIGHTS
SW1 SETUP
SWITCHES AND
AND ECM BLOWER
DELAY
MODEL PLUG
CONNECTOR
AIR CONDITIONING
(A/C) AIRFLOW
SETUP SWITCHES
COMMUNICATION
CONNECTOR
CONTINUOUS FAN
BLOWER OFFï
F) AIRFLOW
SETUP SWITCHES
OUTDOOR
(C
IR TEMP
CONNECTOR
HUMIDIFIER
TERMINAL (24
A
VAC
0.5 AMP MAX.
FLASH
UPGRADE
CONNECTOR
(FACTORY
ONLY)
SW4 SETUP
ï
SOFTWARE
VERSION
PART NUMBER AND
DATE CODE WWYY
SWITCHES
L11F081