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Part number 550-100-400/0119
68
Provide pipe adapters as needed where pipe size
is different from termination connections or
boiler connections, and for all AL29-4C vent pipe
connections at the boiler and the termination.
Allowable vent/air pipe materials
1. Use only the materials listed in Figure 13, page 19 .
Maximum piping length
1. Locate the termination such that the total air piping and
vent piping from the boiler to the termination will not
exceed the maximum length given in Figure 69 .
2. Maximum lengths listed in Figure 69 allow for 2 elbows.
Additional elbows required a reduction in maximum length
as explained in the table notes.
Figure 69 aimum pipin lenths for eil-cLain
sideall entair plate
Connecting from termination to boiler
1. Install the termination as instructed in the following. Then
proceed to page 71 to complete the air and vent piping between
the termination and the boiler.
Determine location for termination cap
A gas vent extending through an exterior wall shall
not terminate adjacent to the wall or below building
extensions such as eaves, parapets, balconies or decks.
Failure to comply could result in severe personal
injury, death or substantial property damage.
1. Locate the vent/air terminations using the following guidelines.
2. You must consider the surroundings when terminating the
vent and air:
a. Position the vent termination where vapors will not damage
nearby shrubs, plants or air conditioning equipment or be
objectionable.
b. The fl ue products will form a noticeable plume as they
condense in cold air. Avoid areas where the plume could
obstruct window views.
c. Prevailing winds could cause freezing of condensate and
water/ice buildup where fl ue products impinge on building
surfaces or plants.
eet los eet los eet los
- 100 2 100 2
Not
alloed
- 100 2 100 2
- Not alloed 100 2
- Not alloed 30 2 100 2
- Not alloed Not alloed 100 2
- Not alloed Not alloed 100 2
Install pipe reducers to adapt from pipe sie used to the .
inch outside diameter reuired at the termination. ou do not
hae to reduce alloale pipe lenth for the reducers. Also install
reducers as necessar here connectin to the oiler ent and
air connections.
Ultra- and oilers installed ith -inch ent pipin
automaticall derate due to the pressure loss in the ent and air
pipin. The derate ranes up to for the Ultra- at feet
or for the Ultra- at feet.
or pipin usin more than elos reduce maimum alloale
lenth
feet for each additional -inch elo or
feet for each additional or -inch lon radius elo
feet for each or -inch short radius elo
feet for each or -inch -deree elo.
®
Series 4
gas-fired water boiler — Boiler Manual
Figure 70Termination location eil-cLain entair plate
heiht aoe rade or sno line
Sidewall vent/air termination: Weil-McLain cap (cont.)
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