Carrier 48TCA04---A12 User Manual
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Table 9 – IGC Connections
TERMINAL LABEL
POINT DESCRIPTION
SENSOR LOCATION
TYPE OF I/O
CONNECTION
PIN NUMBER
INPUTS
RT, C
Input power from TRAN 1
control box
24 VAC
—
SS
Speed sensor
gas section
analog input
J1, 1-3
FS, T1
Flame sensor
gas section
switch input
—
W
Heat stage 1
LCTB
24 VAC
J2, 2
RS
Rollout switch
gas section
switch input
J2, 5-6
LS
Limit switch
fan section
switch input
J2, 7-8
CS
Centrifugal switch (not used)
—
switch input
J2, 9-10
OUTPUTS
L1, CM
Induced draft combustion motor
gas section
line VAC
IFO
Indoor fan
control box
relay
J2, 1
GV
Gas valve (heat stage 1)
gas section
relay
J2, 11-12
Table 10 – Orifice Sizes
ORIFICE
DRILL SIZE
CARRIER
PART NUMBER
DRILL
DIA. (in.)
#30
LH32RF129
0.1285
1/8
LH32RF125
0.1250
#31
LH32RF120
0.1200
#32
LH32RF116
0.1160
#33
LH32RF113
0.1130
#34
LH32RF111
0.1110
#35
LH32RF110
0.1100
#36
LH32RF105
0.1065
#37
LH32RF104
0.1040
#38
LH32RF102
0.1015
#39
LH32RF103
0.0995
#40
LH32RF098
0.0980
#41
LH32RF096
0.0960
#42
LH32RF094
0.0935
#43
LH32RF089
0.0890
#44
LH32RF086
0.0860
#45
LH32RF082
0.0820
#46
LH32RF080
0.0810
#47
LH32RF079
0.0785
#48
LH32RF076
0.0760
#49
LH32RF073
0.0730
#50
LH32RF070
0.0700
#51
LH32RF067
0.0670
#52
LH32RF065
0.0635
#53
LH32RF060
0.0595
#54
LH32RF055
0.0550
#55
LH32RF052
0.0520
#56
LH32RF047
0.0465
#57
LH32RF043
0.0430
#58
LH32RF042
0.0420
48TC