Trinity
│
Installation and Operation Instructions
Tft Series
16
Vent/Air-inlet Pipe Length Determination
Use Table 4-5 to determine the maximum pipe length that can be used. The table calculates 90º elbows, and 45º
elbows at 5 equivalent feet each.
Example
:
When using 3” pipe, a Tft60-110 can be installed with 150 equivalent feet of air-inlet piping and 150
equivalent feet of exhaust-vent piping. See Table 4-5 for more details.
Models Tft60-110 require a minimum equivalent exhaust vent length of 15’. When
operating on Propane, models Tft60-110 require a minimum air-inlet length of 6’ and 11’
for 2” and 3” venting respectfully.
Table 4-5 Allowable Vent and Air-inlet Pipe Size and Lengths
Model No.
Pipe
Size
Gas
Length
(ft)
Number of Elbows (90’s or 45’s) and Equivalent Feet
1
2
3
4
5
6
7
8
9
Tft60-110
2”
1
NG
100
95
90
85
80
75
70
65
60
55
Tft60-85
LP
35
30
25
20
15
10
5
-
-
-
Tft110
25
20
15
10
5
-
-
-
-
-
Tft60-110
3”
NG/LP
150
145
140
135
130
125
120
115
110
105
Tft155-250
100
95
90
85
80
75
70
65
60
55
Tft300-399
4”
100
95
90
85
80
75
70
65
60
55
Note:
1
See WARNING below.
PVC Exhaust Venting
– When using 2” PVC venting with models Tft60-110, the first
seven (7) equivalent feet of exhaust venting must be approved 2” CPVC or 3” PVC; see
exceptions in Table 4-4 and Figures 4-2b and 4-2d.
Termination Options
– Direct Vent Installation
The venting system of the Tft may be terminated using field supplied piping to construct a “Two-Pipe”
termination, see Figures 4-3a, 4-4a, 4-4d, 4-5a, 4-6a and 4-6d; alternatively the venting may be terminated using
a factory kit selected from Table 4-6. The “IPEX Low Profile” kit (see Figures 4-3b and 4-5c) and “M&G
DuraVent Concentric (Wall)” kit (see Figures 4-3d and 4-5d) can be used for Sidewall terminations, while the
“M&G DuraVent Concentric (Roof)” kit (see Figures 4-4c and 4-6c) can be used for Rooftop terminations; the
“IPEX Concentric” kit (see Figures 4-3c, 4-4b, 4-5b and 4-6b) can be used for either Sidewall or Rooftop
terminations.
Sidewall Termination -
Due to potential moisture loading (build-up) along the exterior
wall, sidewall venting may not be the preferred venting option. Refer to Figures 4-4 and
4-6 for roof top venting options.
The vent for this appliance shall not terminate over public walkways; or near soffit vents
or crawl space vents or other area where condensate of vapor could create a nuisance or
hazard or cause property damage; or where condensate or vapor could cause damage or
could be detrimental to the operation of regulators, relief valves, or other equipment.
Extra precaution must be taken to adequately support the weight of the Vent/Air-inlet
piping in applications using roof-top terminations. Failure to follow these instructions
may result in venting or boiler component failure resulting in flue gas spillage leading to
property damage, serious injury or death.
Optional Termination Kits
– Direct Vent Installation
Kits certified with the Trinity Tft are listed in Table 4-6 and available from IPEX, DuraVent and/or NTI. For
more information on System 636 Vent Kits or wholesaler locations contact IPEX directly
USA:
1-800-463-9572
or www.IPEXamerica.com
│
CAN:
. For more information on PolyPro
Vent Kits or wholesaler locations contact DuraVent directly 1-800-835-4429 or www.duravent.com. For more
information on InnoFlue Vent Kits or wholesaler locations contact Centrotherm directly at 1-877-434-3432 or
www.centrotherm.us.com.
