Weil-McLain Ultra Series 3 Quick Start Manual page 3

MATERIAL CHECKLIST
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Support pipes as
described in the
manual.
S l o p
f o o t
Sidewall with
Weil-McLain
termination
(included with boiler)
Air inlet can be snorkeled up as shown above.
VENT & AIR PIPING
(see boiler manual for details)
" p e r
e s ¼
e p i p i l e r .
r d b o
t o w a
Sidewall with
Separate Pipes
termination
(requires 2 bird screens)
See manual for details.
Slide the air inlet pipe and vent pipe into the boiler top
openings. Just tighten the restraining rings — no messy
sealants required. Reducers or adapters are required when
the vent / air pipe O. D. is different from the boiler connection
diameter (see below). All AL29-4C stainless pipe applications
require adapters made by the vent pipe manufacturer. See
the material checklist for items required.
Ultra boilers can be sidewall vented or vertically vented
as shown in the five options below and in the manual.
Make sure the terminations are placed as required in the
manual and that air intakes are at least 12 inches above
normal snow line.
Vent / air pipe size options (PVC sizes):
Sidewall with
3" Concentric Pipe
termination
(requires W-M kit)
Ultra-80, 105: 2" or 3"
Ultra-155: 3"
Ultra-230: 3" or 4"
Ultra-299, 399: 4"
Vertical Vertical
3" Concentric Pipe Separate Pipes
termination termination
(requires W-M kit) (requires 2 bird screens)
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