Specifications

RED LED-STATUS
0
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LH33WPOO2A 1088-12
Fig. 24 -- Integrated Gas Control (IGC) Board
Table 55 -- IGC Connections
TERMINAL LABEL POINT DESCRIPTION SENSOR LOCATION TYPE OF I/O CONNECTION
PIN NUMBER
INPUTS
RT, C Input power from TRAN ! control box 24 VAC --
SS Speed sensor gas section analog input J!, 1-3
FS, T1 Flame sensor gas section switch input --
W Heat stage 1 MBB 24 VAC J2, 2
RS Rotlout switch gas section switch input J2, 5-6
LS Limit switch gas 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 MBB relay J2, !
GV Gas valve (heat stage 1) gas section relay J2, 11-12
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