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IMPORTANT
ML193DF exhaust and intake connections are made
of PVC. Use PVC primer and solvent cement when
using PVC vent pipe. When using ABS vent pipe, use
transitional solvent cement to make connections to
the PVC fittings in the unit.
Use PVC primer and solvent cement or ABS solvent cement
meeting ASTM specifications, refer to Table 4. As an alter-
nate, use all purpose cement, to bond ABS, PVC, or CPVC
pipe when using fittings and pipe made of the same materi-
als. Use transition solvent cement when bonding ABS to ei-
ther PVC or CPVC.
Low temperature solvent cement is recommended during
cooler weather. Metal or plastic strapping may be used for
vent pipe hangers. Uniformly apply a liberal coat of PVC
primer for PVC or use a clean dry cloth for ABS to clean in-
side socket surface of fitting and male end of pipe to depth
of fitting socket.
Canadian Applications Only − Pipe, fittings, primer
and solvent cement used to vent (exhaust) this ap-
pliance must be certified to ULC S636 and supplied by a
single manufacturer as part of an approved vent (ex-
haust) system. In addition, the first three feet of vent
pipe from the furnace flue collar must be accessible for
inspection.
TABLE 5
OUTDOOR TERMINATION KITS USAGE
ML193
UNIT
VENT
PIPE
DIA.
(in.)
STANDARD CONCENTRIC
Outdoor
Exhaust
Accelerator
(Dia. X
Length)
Outdoor
Exhaust
Accelerator
(Dia. X
Length)
2" Wall Plate
Kit
3" Wall Plate
Kit
2" Wall
Ring Kit
Flush-
Mount
Kit
1−1/2"
Concentric
Kit
2"
Concentric
Kit
3"
Concentric
Kit
1−1/2" X 12" 2" X 12"
22G44
or 30G28
44J40
or 81J20
15F74 51W11**
71M80
or
44W92
69M29
or
44W92
60L46
or 44W93
045
2 YES YES YES* YES YES YES
2−1/2 YES YES YES* YES YES YES
3 YES YES YES* YES YES YES
070
2 YES YES YES* YES YES YES
2−1/2 YES YES YES* YES YES YES
3 YES YES YES* YES YES YES
090
2 YES YES YES YES YES YES
2−1/2 YES YES YES YES YES YES
3 YES YES YES YES YES YES
110 3 YES YES YES YES YES YES
*Requires field−provided and installed 1−1/2" exhaust accelerator.
** Kit 51W11 is provided with a 1−1/2" accelerator which must be used for all ML193DF−045, −070 and −090 installations.
Termination kits 44W92, 44W93, 30G28 and 81J20 approved for use in Canadian installations to meet CSAB149.
The 44W92 Concentric kit is provided with a 1−1/2" accelerator which must be installed on the exhaust outlet when this kit is used with the ML193DF045P36B and
ML193DF070P36B
furnaces.