Carrier 48PG03-16 Controls, Start-Up, Operation, Service And Troubleshooting Instructions page 105

TERMINAL LABEL
INPUTS
Input power from TRAN 1
RT, C
Speed sensor
SS
Flame sensor
FS, T1
Heat stage 1
W
Rollout switch
RS
Limit switch
LS
Centrifugal switch (not used)
CS
OUTPUTS
Induced draft combustion motor
L1, CM
Indoor fan
IFO
Gas valve (heat stage 1)
GV
RED LED-STATUS
Fig. 31 --- Integrated Gas Control (IGC) Board
Table 104—IGC Connections
POINT DESCRIPTION SENSOR LOCATION
control box
gas section
gas section
MBB
gas section
gas section
—
gas section
MBB
gas section
105
CONNECTION
TYPE OF I/O
PIN NUMBER
24 VAC
—
analog input J1, 1-3
switch input
—
24 VAC J2, 2
switch input J2, 5-6
switch input J2, 7-8
switch input J2, 9-10
line VAC
relay J2, 1
relay J2, 11-12
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