Trinity
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Installation and Operation Instructions
Ti Series
6
3.0 GENERAL VENTING
The Trinity Ti is a “Direct Vent” appliance requiring a “Special Venting System” designed for pressurized venting. Both the
Vent and Air-Intake piping must be piped to the outdoors, using the vent material and rules outlined in this section. Under no
conditions may this unit vent gases into a masonry chimney, unless it is vacant, and utilizes the approved venting material and
rules described in this section. Installations must comply with the National Fuel Gas Code, ANSI Z223.1 (U.S.) or CSA B149.1
(Canada) and local requirements.
Vent and Air-Intake to be piped separately. The Trinity Ti cannot share a common vent or air-intake
with multiple appliances. Failure to comply will result in serious injury or death.
Combustion Air-Intake Contamination
Be careful not to locate the Air-Intake termination in an area where contaminants can be drawn in and used for combustion.
Combustion air containing dust, debris or air-borne contaminants will drastically increase the required maintenance and may
cause a corrosive reaction in the Heat Exchanger which could result in premature failure, fire, serious injury, or death.
See Table
3-1 for a list of areas to avoid when terminating air-intake piping:
Table 3-1 Corrosive Products and Contaminant Sources
Products to Avoid
Contaminated Sources to Avoid
Antistatic fabric softeners, bleaches, detergents, cleaners
Laundry facilities
Perchloroethylene (PCE), hydrocarbon based cleaners
Dry cleaning facilities
Chemical fertilizer, herbicides/pesticides, dust, methane gas
Farms or areas with livestock and manure
Paint or varnish removers, cements or glues, sawdust
Wood working or furniture refinishing shops
Water chlorination chemicals (chloride, fluoride)
Swimming pools, hot tubs
Solvents, cutting oils, fiberglass, cleaning solvents
Auto body or metal working shops
Refrigerant charge with CFC or HCFC
Refrigerant repair shops
Permanent wave solutions
Beauty shops
Fixer, hydrochloric acid (muriatic acid), bromide, iodine
Photo labs, chemical / plastics processing plants
Calcium Chloride
De-Icing / Ice Melters
Cement powder, crack fill dust, cellulose, fiber based insulation
Concrete plant or construction site
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance. Failure to follow instructions may result in serious injury or death.
Flammable Solvents and Plastic Piping
Due to the extremely flammable characteristics of most glues, cements, solvents and primers used in the process of joining plastic
vent and air-inlet pipe, explosive solvent vapors must be evacuated from the vent and air-intake prior to start-up. Avoid using
excess cement or primer that may lead to pooling inside the pipe assembly. Freshly assembled piping should be allowed to cure
for a minimum of 8 hours before applying power to the gas fired appliance. Refer to
Mandatory Pre-commissioning Procedure
for Plastic Venting
in this section.
Flammable Cements and Primers
– It is the installers’ responsibility to familiarize themselves with
the hazards associated with explosive solvents and to take all precautions to reduce these risks. Failure
to follow these instructions can cause explosions, property damage, injury or death.
Near Boiler Vent/Air-Intake Piping
Each Trinity Ti is equipped with a short piece of approved CPVC vent pipe. Insert one end into the boiler flue outlet adapter and
cement the other to field venting (see Table 3-3 for approved venting material). The CPVC vent pipe should extend fully into the
boiler flue outlet adapter (see Table 3-2).
DO NOT
insert PVC pipe directly into the flue outlet connection as it can deform from
the clamping force of the gear clamp. Ensure that the venting system does not apply a load or strain on the boiler flue outlet
adapter. The manufacturer recommends using two elbows to create a “swing joint” to reduce potential strain on vent piping and
cemented joints. See Figure 3-1 for illustration.
Gasket Seating
- Improper seating can cause leakage and eventual failure of the sealing gasket. Failure
to follow these instructions may result in serious injury or death.
