Carrier F97CMN - Page 29

F97CMN and G97CMN: Installation, Start-up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
29
A11616
Fig. 36 – Example of Modulating Furnace Control
A11157
Fig. 37 – Field-supplied Isolation Relay for Humidifiers with Internal Power Supply
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
PL3 – ECM BLOWER
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.
ACRDJ – AIR
CONDITIONING
RELAY DISABLE
JUMPER
FLASH
UPGRADE
CONNECTOR
(FACTORY
ONLY)
SW4 SETUP
SWITCHES
SOFTWARE
VERSION
PART NUMBER AND
DATE CODE WWYY
PL8 - MODULATING
GAS VALVE
CONNECTOR
24 V
Coil
To Humidifier Leads
To Com/24V Screw Terminal
on Thermostat Strip
To HUM Terminal On
Furnace Control Board
To Humidifier Leads