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29
Red LED-Status
C08452
Fig. 40 -- Integrated Gas Control (IGC) Board
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
CTB
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
48L
C
Summary of Contents for 48LC 05
Page 10: ...10 COOLING CHARGING CHARTS C14037 Fig 13 Cooling Charging Charts 3 Ton 48LC ...
Page 11: ...11 COOLING CHARGING CHARTS cont C14038 Fig 14 Cooling Charging Charts 4 Ton 48LC ...
Page 12: ...12 COOLING CHARGING CHARTS cont C14039 Fig 15 Cooling Charging Charts 5 Ton 48LC ...
Page 35: ...35 WIRING DIAGRAMS C14043 Fig 44 Unit Wiring Diagram Power 208 230V 460V 3 Phase 48LC ...
Page 36: ...36 C14044 Fig 45 Unit Wiring Diagram Power 575V 3 Phase 48LC ...
Page 37: ...37 C14045 Fig 46 Unit Wiring Diagram Control 48LC ...
Page 47: ...47 48LC ...