Vent And Air Piping And Boiler Connections - Weil-McLain WMB-155C Manual

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AquaBalance

15 Vent and air piping and boiler connections

Follow termination instructions
1. Read and follow all instructions for the termination type
used before proceeding with this page. Follow all instructions
provided by vent pipe manufacturer.
Use only materials from the manufacturers listed
in Figure 22, page 19.
Installing vent and air piping
For polypropylene applications, comply with any
additional requirements in the vent system manu-
facturer's instructions. (Do Not use 3" PVC transi-
tion pieces at the boiler vent and air connections).
For AL29-4C vent pipe applications, comply with
any additional requirements in the vent system
manufacturer's instructions.
1. Work from the boiler to vent or air termination. Do not
exceed the lengths given in the previous pages for either the
air or vent piping.
2. See Figure 37, for locations for attaching vent and air inlet
adapters on to the boiler. Air inlet adapter connection is made
on right side of centered flue adapter.
3. Remove vent/exhaust protective paper prior to mounting
vent adapter.
4. Vent and air inlet adapters needed to be attached to top
securely with four (4) 10-32 large Phillips head screws, see
Figures 38, 39 and 40. Vent adapters (provided with boiler)
are for polypropylene, PVC, and AL29-4C venting.
5. See Figure 39, center flue gasket and insert the extruded flue
vent adapter into the center opening, secure with four (4)
10-32 Phillips head screws.
Figure 37
vent/exhaust
location
Air pipe
connection
32
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ALL OUNT GAS FIRED WATER BOILER
— C
OMBI Boiler Manual
Figure 38
Vent
adapter
Figure 39
6. See Figure 41, right air inlet, center gasket and air inlet vent
adapter over right opening, secure with four (4) 10-32 Phil-
lips head screws.
Figure 40
Vent
gasket
Part number 550-100-305/1016