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REFERENCE - VENTING CONNECTION LOCATIONS
200-300MBH
C
COMPRESSOR
ACCESS
COMBUSTION AIR INLET
EXHAUST OUTLET
B
A
C
Furnace Size
Model
(MBH)
100
150
AR-DR12 /
200
AR-DE12
250
300
300
AR-DR22 /
400
AR-DE22
500
62
AR-DE12
COMBUSTION AIR INLET
EXHAUST OUTLET
AR-DE22
500MBH
CONTROL CENTER
ACCESS
IG FURNACE
ACCESS
D
IG Venting Locations
A
B
14
23.5
15.2
23.7
14.8
23.3
14.9
23.6
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COMPRESSOR / CONTROL CENTER
COMBUSTION AIR INLET
EXHAUST OUTLET
B
A
C
D
300-400MBH
COMPRESSOR
ACCESS
IG FURNACE
B
ACCESS
A
C
D
Flue Connection Size (diameter in inches)
C
D
Standard
20.5
20.5
31.5
35.9
38.1
44.1
25.2
57.1
100-150MBH
ACCESS
IG FURNACE
ACCESS
CONTROL CENTER
ACCESS
COMBUSTION AIR INLET
EXHAUST OUTLET
2-Pipe Concentric
Exhaust
Exhaust
4
4
4
4
6
6
6
6
6
6
6
6
6
6
6
6
Intake
4
4
6
6
6
6
6
6
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Troubleshooting
