Lennox ML193DFE Series Unit Information page 21

Vent Pipe
Input Size
Dia. in.
1-1/2
6
2
045
2-1/2
3
1-1/2
6
2
070
2-1/2
3
2
090 2-1/2
3
NOTE - Standard Terminations do not include any vent pipe or elbows external to the structure. Any vent pipe or elbows external to the structure must be included in total
vent length calculations. See vent length tables.
* Kits must be properly installed according to kit instructions.
1Requires field-provided outdoor 1-1/2" exhaust accelerator.
2Concentric kits 71M80 and 44W92 include 1-1/2" outdoor accelerator, when uses with 045 and 070 input models. When using 1-1/2 inch vent pipe, transition to 2" pipe before
installing concentric kit.
3 Flush mount kits 51W11 and 51W12 includes 1-1/2 in. outdoor exhaust accelerator, required when used with 045, 070 and 090 input models .When using 1-1/2 inch vent
pipe, transition to
2" pipe before installing flushmount kit..
4 Termination kits 30G28, 44W92, 4493 and 81J20 are certified to ULC S636 for use in Canada only.
5 See TABLE 16 for vent accelerator requirements.
6 Requires field provided 2" to 1-1/2" reducer.
OUTDOOR TERMINATION USAGE*
STANDARD
Flush Mount
Wall Kit
Kit
2 inch
51W11 (US)
22G44 (US)
51W12 (CA)
4 30G28
(CA)
YES YES
3
YES YES
3
YES YES
3
YES YES
3
3YES YES
3YES YES
YES YES
3
YES YES
3
YES
3
YES N/A
3
YES
3
TABLE 11
3 inch Field
Fabricated
44J40 (US)
4 81J20 (CA)
YES YES
1 5
YES YES
1 5
YES YES
1 5
YES YES
1 5
YES YES
1 5
YES YES
1 5
YES YES
1 5
YES YES
1 5
YES YES
5
YES YES
5
YES YES
5
Page 21
CONCENTRIC
1-1/2 inch 2 inch
71M80 (US) 69M29 (US)
4 44W92 4 44W92
(CA) (CA)
YES
2
YES
2
YES
2
YES
2
N/A
YES
2
YES
2
YES
2
YES
2
YES
N/A YES
YES
3 inch
60L46 (US)
4 444W93
(CA)
N/A
YES
YES
YES