NTI Trinity TX Series, Инструкция по установке и эксплуатации

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Tx I&O Manual
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General Venting
15
Vent/Air-inlet Pipe Material
Table 4-2 Approved Vent and Air-inlet Pipe Material
Items
1
Materials
2, 3
Venting System Standards
All Vent and Air-Inlet
materials installed on gas
fired appliances in CAN/US
must meet the specifications
provided in this Table.
Failure to comply could
result in fire, serious injury
or death.
United States Canada
4
Vent Piping
and Fittings
PVC - DWV ANSI/ASTM D2265
In Canada, all exhaust
vent material 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
Stainless Steel (SS) UL-1738
Polypropylene (PP) -
Pipe Cement
PVC ANSI/ASTM D2564
CPVC ANSI/ASTM F493
Primers
PVC / CPVC ANSI/ASTM F656
Notes:
1
Refer to Table 4-3 for Allowable Vent and Air-inlet Pipe Sizes and Lengths.
2
PVC venting (exhaust and air-inlet) is not permitted within the Closet/alcove of a Closet/alcove installation.
3
The Air-inlet does not require high temperature pipe material; ABS and PVC Foam Core piping is acceptable. 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 boiler supply water temperatures greater than 140
o
F (60
o
C) must
use ULC S636 CPVC, PP or SS exhaust venting.
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.
Vent/Air-inlet Pipe Length Determination
Use Table 4-3 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 Tx151 boiler can be installed with 150 equivalent feet of air-inlet piping and
150 equivalent feet of exhaust-vent piping. See Table 4-3 for more details.
Table 4-3 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
Tx51-151 (C)
2”
1
NG /
LP
100 95 90 85 80 75 70 65 60 55
3”
150 145 140 135 130 125 120 115 110 105
Tx200 (C)
3”
100 95 90 85 80 75 70 65 60 55
Note:
1
See WARNING below.
PVC Exhaust Venting – When using 2” PVC venting, the first seven (7) equivalent feet
of exhaust venting must be approved 2” CPVC or 3” PVC; see exceptions in Table 4-2.