Direct Vent - Sidewall With W-M Vent/Air Plate - Weil-McLain Series 2 Manual

® S
ERIES
DIRECT VENT —
Allowable vent/air pipe materials &
lengths
Use only the vent materials and kits
listed in Figure 23, page 24 . Provide pipe
adapters if specifi ed.
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 22, page 23 .
For polypropylene applications, comply
with any additional requirements in the
vent system manufacturer's instructions.
Provide 3" PVC transition pieces at the
boiler vent and air connections and at the
vent termination. Install a locking collar
at every joint.
For AL29-4C vent pipe applications,
comply with any additional requirements
in the vent system manufacturer's
instructions. Provide 3" PVC transition
pieces at the boiler and at the vent and
air terminations. (The air pipe must be
PVC or CPVC.)
Determine termination location
1. The vent/air cap must be installed as shown in
Figure 35, page 33 .
2. The termination must comply with clearances and
limitations shown in Figure 24, page 26 .
3. Locate the termination so it is not likely to be
damaged by foreign objects, such as stones or balls,
or subject to buildup of leaves or sediment.
Multiple vent/air terminations or
termination adjacent to other appliance
terminations
1. When terminating multiple ECO boilers, terminate
each vent/air connection as described in this
manual.
All vent pipes and air inlets must
terminate at the same height to avoid
possibility of severe personal injury,
death or substantial property damage.
2. Place wall penetrations to obtain minimum
clearance as shown in for U. S. installations. For
Canadian installations, provide clearances required
by CSA B149.1 or B149.2 Installation Code and a
ULC S636 compliant vent kit.
3. The air inlet of a ECO boiler is part of a direct vent
connection. It is not classifi ed as a forced air intake
with regard to spacing from adjacent boiler vents.
For terminations of other appliances,
provide at least the clearance shown. The
installation must also comply with the
manual for the other appliances.
32
2
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G
AS FIRED WATER BOILER
Sidewall with W-M vent/air plate
— Boiler Manual
Figure 32
INSTALLATION
Vent/air pipes and vent/air can be oriented as option 1, 2, or 3. DO
NOT mount with plate vertical and vent outlet down.
Step 1 Read and follow all instructions in this manual. DO NOT proceed
with vent/air installation until you have read page 22
through page 27 .
Step 2 Install the boiler in a location that allows proper routing of all vent
and air piping to the selected sidewall location.
Step 3 Make sure the selected sidewall termination location complies with
Figure 24, page 26 . (Multiple boiler sidewall plates must also comply
with Figure 33, page 33 .)
Step 4 Use only the vent materials listed in Figure 23, page 24 . Provide pipe
adapters where required.
Step 5 Vent piping and air piping lengths must not exceed the values shown
in Figure 22, page 23 .
Step 6 Prepare the sidewall penetrations and secure the sidewall plates as
instructed in this section. See "Install Weil-McLain vent/air cap" on
page 33 .
Step 7 The Weil-McLain plate termination must be installed before piping
from the boiler to the termination.
Step 8 Install vent and air piping between the boiler and the vent/air
termination plate. Slope horizontal piping downward toward the boiler
at least 1/4 inch per foot. See page 41 for general guidelines.
Step 9 Install pipe supports every 5 feet on both the horizontal and vertical
runs, or per vent pipe manufacturer's instructions.
See notices at left.
Step 10 Install a hanger support within 6 inches of any upturn in the piping,
or per vent pipe manufacturer's instructions.
notices at left.
USE SWEEP ELBOWS FOR ALL VENT AND AIR
PIPING — DO NOT use short radius elbows for vent or
air piping. Boiler performance could be affected.
— W-M sidewall vent/air plate
See notices at left.
Part number 550-142-190/1218
See