Lx – WH Series Installation and Operation Instructions
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Trinity Lx
15
Near Water Heater Vent/Air-inlet Piping
Each Trinity Lx is equipped with a short piece of approved CPVC vent pipe (see Table 4-2 CPVC Vent Pipe
Transition Piece). Insert one end into the water heater flue outlet adapter and cement the other to field venting
(see Table 4-4 for approved venting material). The CPVC vent pipe should extend fully into the water heater
flue outlet adapter (see Table 4-2). Ensure that the venting system does not apply a load or strain on the water
heater 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 Figures 4-2 through 4-5.
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.
PVC Exhaust Venting
–
DO NOT
insert PVC pipe directly into the water heater exhaust
adapter, as it can deform from the clamping force of the gear clamp. Failure to follow
these instructions may result in gasket failure and/or the dislodging of the exhaust pipe
from the water heater adapter, resulting in property damage, serious injury or death.
Table 4-2 CPVC Vent Pipe Transition Piece
(used when venting with PVC)
Model No.
CPVC Vent Pipe Size
CPVC Transition Vent Pipe Length
Full Insertion Depth
Lx200WH
3”
Minimum 5” [127 mm]
2-7/8” [73 mm]
Lx300WH-Lx600WH
4”
Minimum 4” [100 mm]
1-7/8” [48 mm]
Lx700WH & Lx800WH
6”
Minimum 6” [152 mm]
2-1/2” [63 mm]
Polypropylene or Stainless Steel Venting
– When using Polypropylene or Stainless Steel
piping, the appropriate water heater adapters must be used to transition the water heater
vent connections to accept the respective Polypropylene or Stainless Steel venting. See
Table 4-3 for a list of approved adapters. Failure to use the correct adapter will result in
flue gas leakage resulting in property damage, serious injury or death.
Table 4-3 Water heater Adapters for Polypropylene and Stainless Steel Venting
Model No.
Vent Material
Venting Brand
Adapter Part No.
1,2
Lx200WH
Polypropylene
DuraVent – PolyPro
300150
Centrotherm - InnoFlue
ISANY0303
Stainless Steel
DuraVent – FasNSeal
300715
Lx300WH-Lx600WH
Polypropylene
DuraVent – PolyPro
300151
Centrotherm - InnoFlue
ISAA0404
Stainless Steel
DuraVent – FasNSeal
303631
Lx700WH & Lx800WH
Polypropylene
DuraVent – PolyPro
810004281
Centrotherm - InnoFlue
ISAA0606
Stainless Steel
DuraVent – FasNSeal
810005231
Notes:
1
Listed water heater adapters are only approved for use with the respective venting brand; i.e. a PolyPro water heater
adapter shall not be used with InnoFlue venting.
2
PolyPro and FasNSeal water heater adapters are available from DuraVent (1-800-835-4429 or
);
InnoFlue water heater adapters are available from Centrotherm Eco Systems (1-877-434-3432 or
www.centrotherm.us.com).
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.