Trinity Lx │Installation and Operation Instructions Lx Series
16
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 Lx300-600 4” Minimum 4” [100 mm] 1-7/8” [48 mm]
Trinity Lx700-800 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
CPVC Schedule 40 ANSI/ASTM F441
AL29-4C UL-1738
Vent Piping
and Fittings
Polypropylene (PP) n/a
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
PVC venting (exhaust and air-intake) is not permitted within the Closet/alcove of a Closet/alcove installation.
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 CPVC, PP or AL29-4C.
Mandatory Pre-commissioning Procedure for Plastic Venting
Do not apply power to the appliance prior to Step 4 in the Mandatory Pre-commissioning
Procedure for Plastic Venting.
Spark Igniter Cable - Maintain a minimum 2” separation between spark igniter circuit and
conductors. Failure to follow instructions may result in component failure, injury or death.
1) Working with the power turned off to the appliance, completely install the vent and air intake system,
securely cementing joints together. If possible, allow primers/cements to cure for 8 hours before firing the
burner. If curing time is less than 8 hours, proceed with Steps 2 through 6.
2) Maintain the appliance gas supply shut-off valve in the off position.
3) Disconnect electrical leads to the Hot Surface or Spark Igniter. Ensure the cables are placed in a fashion
where they will not arc to ground or other conductor. Refer to warning regarding Spark Igniter Cable.
4) Turn power on to the appliance and apply a heat demand.
5) Allow for 3 complete trials for ignition, consisting of pre and post purge of the combustion blower, until an
ignition lockout occurs. Repeat the process two more times (i.e. 9 complete ignition sequences in total).
6) Turn power off and reconnect the electrical leads to the Igniter.
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