Trinity Lx
│
Installation and Operation Instructions
Lx Series
14
Figure 4-3(a) Lx800
Figure 4-3(b) Lx800
Near Appliance Venting (CPVC)
Near Appliance Venting (PVC)
Air-Inlet - check with applicable local codes for acceptable pipe material.
Exhaust venting must be supported to reduce strain on piping joints. Failure to
follow these instructions may result in result in damage, serious injury or death.
In Canada, the first 3 ft (915 mm) of vent piping must be readily accessible for inspection.
Table 4-2 Mandatory Vent Pipe Transition Piece
Model No.
CPVC Vent Pipe Size
CPVC Transition Vent Pipe Length
Full Insertion Depth
Trinity Lx150-200
3”
Minimum 5” [127 mm]
2-7/8” [73 mm]
Trinity Lx300-400
4”
Minimum 4” [100 mm]
1-7/8” [48 mm]
Trinity Lx800
6”
Minimum 6” [152 mm]
2-1/2” [63 mm]
Vent/Air-Intake Pipe Material
Table 4-3 Acceptable Vent and Air-Intake Pipe Material
Installation Standards
Items
1
Materials
2, 3
United States
Canada
4
PVC - DWV
ANSI/ASTM D2265
PVC Schedule 40
ANSI/ASTM D1785
Vent Pipe and
Fittings
CPVC Schedule 40
ANSI/ASTM F441
PVC
ANSI/ASTM D2564
Pipe Cement
CPVC
ANSI/ASTM F493
Primers
PVC / CPVC
ANSI/ASTM F656
All venting material in
Canada must be
ULC S636 approved.
See Note 4 below for
appropriate temperature
applications.
All Vent and Air-Intake
materials installed on gas
fired appliances in CAN/US
must meet the Standards
listed in Table 4-3. Failure
to comply could result in
fire, serious injury or death.
Notes:
1
Refer to Table 4-4 for Allowable Vent and Air-Intake Pipe Sizes and Lengths.
2
Closet/alcove installations in US and Canada require approved CPVC vent pipe, fittings, cements, and primers.
3
The Air-Intake does not require high temperature pipe material. Check applicable local codes for acceptable materials.
4
ULC S636 PVC is approved for flue gas temperatures up to 149
o
F (65
o
C) and must only be used for low temperature
applications. High temperature applications requiring appliance supply water temperatures greater than 140
o
F (60
o
C)
must use ULC S636 approved CPVC.
5
Air-Inlet - check with applicable local codes for acceptable pipe material.
Air-Inlet 4” Pipe *
Exhaust Vent
6” CPVC
Swing Joint
to attain slope in
horizontal runs
Flue Outlet 6”
stainless steel
elbow (factory
supplied)
Air-Inlet Adapter
4” stainless steel
(factory supplied
)
90
o
elbow typical, or tee
and drain cap option for
easy cleanouts
Air-Inlet Adapter
4” stainless steel
(factory supplied
)
90
o
elbow typical, or tee
and drain cap option for
easy cleanouts
Flue Outlet 6”
stainless steel
elbow (factory
supplied)
Exhaust Vent
6” PVC (check
local codes
and Table 4-3)
Coupling 6”
PVC, length 4”
Air-Inlet 4/6” Pipe *
Transition
6” CPVC
Swing Joint
to attain slope in
horizontal runs
Mandatory Vent Pipe Transition Piece
6” CPVC (factory supplied). See Table 4-2.
