Trinity
│
Installation and Operation Instructions
Ti Series
8
Vent/Air-Intake Pipe Material
Table 3-3 Acceptable Vent and Air-Intake Pipe Material
Items
1
Materials
2, 3
Installation Standards
All Vent and Air-Intake
materials installed on gas
fired appliances in CAN/US
must meet the Standards
listed in Table 3-3. Failure
to comply could result in
fire, serious injury or death.
United States
Canada
4
Vent Piping
and Fittings
PVC - DWV
ANSI/ASTM D2265
All venting material in
Canada must be
ULC S636 approved
.
See Note 4 below for
appropriate temperature
applications.
PVC Schedule 40
ANSI/ASTM D1785
CPVC Schedule 40
ANSI/ASTM F441
AL29-4C
UL-1738
Polypropylene (PP)
n/a
Pipe Cement
PVC
ANSI/ASTM D2564
CPVC
ANSI/ASTM F493
Primers
PVC / CPVC
ANSI/ASTM F656
Notes:
1
Refer to Table 3-4 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.
The use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel®
(polyphenolsulfone) in the exhaust venting system is prohibited. Failure to follow these
instructions may result in property damage, personal injury or death.
Covering non-metallic vent pipe and fittings with thermal insulation is prohibited. Failure to
follow these instructions may result in property damage, personal injury or death.
Mandatory Pre-commissioning Procedure for Plastic Venting
Do not apply power to the boiler prior to Step 4 in the Mandatory Pre-commissioning Procedure for
Plastic Venting.
1)
Working with the power turned off to the boiler, 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 boiler 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.
4)
Turn power on to the boiler 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.
