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12.10.3 - 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:
a. Cut a hole for the vent pipe. For
either combustible or noncombustible
construction, size the vent pipe hole with at
least a 1/2 inch clearance around the vent
pipe outer diameter;
b. Insert a galvanized metal thimble in the
vent pipe hole as shown in Figure 12-17.
3. Use a sidewall termination plate as a template
for correct location of hole centers.
4. Follow all local codes for isolation of vent pipe
when passing through floors or walls.
5. Seal exterior openings thoroughly with
exterior caulk.
12.10.4 - Termination and
fittings
1. The air termination coupling must be oriented
at least 12 inches above grade or snow line
as shown in Figures 12-15 and 12-16.
2. Maintain the required dimensions of the
finished termination piping as shown in
Figures 12-15 and 12-16.
3. Do not extend exposed vent pipe outside
of the building more than what is shown in
Figures 12-15 and 12-16. Condensate could
freeze and block vent pipe.
12.10.5 - Multiple vent/air
terminations
1. When terminating multiple heaters terminate
each vent/air connection as shown in Figure
12-18.
WARNING!!!
All vent pipes and
air inlets must terminate at the same
height to avoid possibility of air inlet
flue contamination that could result in
excessive levels of carbon monoxide which
can cause severe personal injury or death!
2. Place wall penetrations to obtain minimum
clearance of 12 inches between edge of
air inlet and adjacent vent outlet, as shown
in Figure 12-18 for U.S. installations. For
Canadian installations, provide clearances
required by CSA B149.1 Installation Code.
3. The air inlet is part of a direct vent connection.
It is not classified as a forced air intake with
regard to spacing from adjacent heater vents.
12 - INSTALLATION - CATEGORY IV: Vent and combustion air
Figure 12-17 Two pipes sidewall termination
assembly
Figure 12-18 Two pipes multiple heaters vent
terminations
Air intake
Flue exhaust
Metal thimble
Termination
template
Bird screen
NOTICE!
Keep the air intake at min. 12” from grade or
snow line. Provide vent and air intake with bird screen
Vent terminals
Air intake
between edge
of each air
intake pipe
Same distance
for vent
terminal
Summary of Contents for Esteem 399
Page 3: ...3 SAFETY INSTRUCTIONS ...
Page 5: ...5 SAFETY INSTRUCTIONS ...
Page 112: ...112 17 MAINTENANCE ...
Page 116: ...116 19 SPARE PARTS Spare parts ...
Page 135: ......
