Direct Vent - Sidewall With Separate Pipes - Freestyle 2 Series Manual

FreeStyle
®
2
series
10 DIRECT VENT — Sidewall with separate pipes
Allowable vent/air pipe materials &
lengths
Use only the vent materials and kits listed in
Figure 21, page 17. Provide pipe adapters if specified.
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 20, page 16.
For polypropylene applications, comply with any
additional requirements in the vent system manufac-
turer's instructions. (Do Not use 3" PVC transition
pieces at the boiler vent and air connections). 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 a AL29-4C
starter piece from the AL29-4C manufacturer for the
transition piece at the boiler vent connection. The
air piping must be PVC or CPVC. Provide a 3" PVC
transition piece at the boiler air connection if using
2" air piping.
Determine termination location
1. Wall penetration thickness between 2" to 24".
2. The air and vent terminations must be installed as shown in
Figure 24 and Figure 26, page 22.
3. The terminations must comply with clearances and limitations
shown in Figure 22, page 19.
4. Locate the terminations so they are not likely to be damaged
by foreign objects, such as stones or balls, or subject to buildup
of leaves or sediment.
5. Vent and air locations can be on different building walls.
Example: Vent/exhaust can be on North building wall and air
intake can be on South building wall. (Different pressure zone).
Do not exceed the maximum lengths of the outside
vent piping shown in Figure 24. Excessive length
exposed to the outside could cause freezing of
condensate in the vent pipe, resulting in potential
boiler shutdown. In extremely cold climates, install
an insulated chase around the vent piping, particu-
larly if using longer lengths. The chase must allow
for inspection of the vent pipe, and insulation must
be protected from water.
Multiple vent/air terminations
1. When terminating multiple boilers, terminate each vent/air
connection as described in this manual.
2. Place wall penetrations to obtain minimum clearances shown
in Figure 24 for U. S. installations.
3. The air inlet of a FreeStyle® boiler is part of a direct vent con-
nection. It is not classified as a forced air intake with regard
to spacing from adjacent boiler vents.
Prepare wall penetrations
1. Air pipe penetration:
a. Cut a hole for the air pipe. Size the air pipe hole as close as
desired to the air pipe outside diameter.
2. Vent pipe penetration:
Part number 550-142-950/0122
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wall mount gas fired water boiler
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boiler manual
Figure 24
INSTALLATION SEQUENCE
sidewall
Step 1 Read and follow all instructions in this manual.
DO NOT proceed with vent/air installation
until you have read page 15 through page 20
See notices at left.
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 com-
plies with Figure 22, page 19. (Multiple boiler sidewall plates
must also comply with Figure 25, page 22.)
Step 4 Use only the vent materials listed in Figure 21, page 17.
Provide pipe adapters where required. Vent piping and
air piping lengths must not exceed the values shown in
Figure 20, page 16.
Step 5 Prepare the sidewall penetrations and secure the sidewall
plates as instructed in this section. See "Prepare wall pene-
trations" on this page.
Step 6 The air piping must terminate in a down-turned elbow as
shown above. The vent piping must terminate in an elbow
pointed outward or away from the air inlet as shown
above. See illustration above.
Step 7 Install vent and air piping between the boiler and the side-
wall openings. Slope horizontal piping downward toward
the boiler at least 1/4 inch per foot. See page 32 for general
guidelines.
Step 8 Install pipe supports every 5 feet on both the horizontal
and vertical runs. Install a hanger support within 6 inches
of any upturn in the piping, or per vent pipe manufacturer's
instructions.
Step 9 Attach the vent termination exterior piping: Use either of the
configurations shown above, as needed to ensure clearance
above grade or snow line. Keep vents/air intake area clear
of accumulating snow.
Step 10 The vent and air pipes may run up as high as 4 feet with
no enclosure. The vent and air pipes must be secured with
braces, and all clearances and lengths must be maintained.
Space braces no further than 24 inches apart.
Step 11 External venting greater than 4 feet requires an insulated
enclosure around the vent and air pipes. The vent and air
terminations must exit through the enclosure as shown in
the illustration above, maintaining all required clearances.
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.
— Separate pipes
See notices at left.
See notices at left.
See notices at left.
21