Joint Cementing Procedure. Lennox ML193UHE Gas Furnace

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Joint Cementing Procedure. Lennox ML193UHE Gas Furnace | Manualzz

Input Size

030,

045

070

090

110

Vent Pipe

Dia. in.

6 1-1/2

2

2-1/2

3

6 1-1/2

2

2-1/2

3

2

2-1/2

3

2

2-1/2

3

Flush

Mount Kit

51W11

(US)

51W12

(CA)

3

3

3

3

3

3 YES

3 YES

3 YES

3 YES

3 YES

3 YES

YES

YES

YES

YES

YES

YES

YES

YES

TABLE 3

OUTDOOR TERMINATION USAGE*

STANDARD

Wall Kit

3 inch 2 inch

22G44

(US)

4 30G28

(CA)

44J40 (US)

4 81J20

(CA)

Field

Fabricated

YES

YES

YES

YES

YES

YES

YES

YES

1

1

1

1

1

1

1

1

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

5

5

5

5

5

5

5

5

5

5

YES

YES

YES

YES

YES

YES

YES

YES

5 YES

5 YES

YES

YES

5 YES

5 YES

1-1.2 inch

4

71M80

44W92

2

2

2

2

2

2

2

2

(US)

(CA)

YES

YES

YES

YES

YES

YES

YES

YES

CONCENTRIC

4

2 inch

69M29

(US)

44W92

(CA)

YES

YES

YES

YES

YES

YES

4

3 inch

60L46 (US)

44W93

(CA)

YES

YES

YES

YES

YES

YES

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 030, 045 and 070 input models. When using 1-1/2 inch vent pipe, transistion 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 030, 045, 070 and 090 input models.When using 1-1/2” 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 8 for vent accelerator requirements.

6 Requires field provided 2” to 1-1/2” reducer.

Joint Cementing Procedure

All cementing of joints should be done according to the specifications outlined in ASTM D 2855.

NOTE - A sheet metal screw may be used to secure the intake pipe to the connector, if desired. Use a drill or self tapping screw to make a pilot hole.

DANGER

DANGER OF EXPLOSION!

Fumes from PVC glue may ignite during system check.

Allow fumes to dissipate for at least 5 minutes before placing unit into operation..

1 - Measure and cut vent pipe to desired length.

2 - Debur and chamfer end of pipe, removing any ridges or rough edges. If end is not chamfered, edge of pipe may remove cement from fitting socket and result in a leaking joint.

3 - Clean and dry surfaces to be joined.

4 - Test fit joint and mark depth of fitting on outside of pipe.

5 - Uniformly apply a liberal coat of PVC primer for PVC or use a clean dry cloth for ABS to clean inside socket surface of fitting and male end of pipe to depth of fitting socket.

NOTE - Time is critical at this stage. Do not allow primer to dry before applying cement.

6 - Promptly apply solvent cement to end of pipe and inside socket surface of fitting. Cement should be applied lightly but uniformly to inside of socket. Take care to keep excess cement out of socket. Apply second coat to end of pipe.

Page 15

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