Hatco Powermite PMG-100 Installation And Operating Manual page 21

To avoid freezing water damage to the booster heater
when the outside temperature is below 32°F (0°C), the unit
must be left ON and the venting must be protected from
migrating cold air.
General Notes On Venting:
• Whenever a vent pipe goes through a combustible wall, the
clearance between the vent material and the combustible
material must be in accordance with the listing requirements
of the vent system chosen. See the vent manufacturer's
instructions.
• All horizontal runs of vent pipe must be supported at every
elbow and every 3' (1 m).
• All horizontals must have an upward pitch of at least 1/4"
per foot.
• When venting through a side wall to the outdoors the
following must be observed:
• A vent termination [Tee Fitting] must be used that is
positioned with the backside of the TEE at least 12"
(305 mm) from the exterior wall.
• The vent termination must be away from areas where the
general public will walk or vehicle may damage the vent
cap.
• The cap must be at least 3' (1 m) above any forced inlet
openings [into the building] that are within 10' (3 m) of the
cap.
• The cap must be one foot above any windows, doors or
other openings into the building.
• The cap must be 4' (1.2 m) horizontally from any doors,
windows, etc.
• The cap must be at least 7' (2 m) above any public walkway.
• The bottom of the cap must be at least 1' (0.3 m) above
ground and possibly higher if the snow accumulation
normally exceeds 1' (0.3 m).
• The cap should be positioned such that any condensate that
drips from the cap will not damage plants, shrubs or onto
other equipment located on the outside of the restaurant.
Form No. PMG100200M-0918
CAUTION
Typical Through-the-Wall Venting
• The cap should be positioned so that condensate that
drips from the cap will not allow the water to accumulate
on walkways or other areas, which may freeze and cause
an accident.
• Right angle adapter is provided to minimize radius of initial
bend toward flue piping required for tight quarters.
Important Note
Do not install with duct exiting down.
Right angle duct outlet may be installed with
duct exiting up, to the left, or to the right.
Right Angle Adapter Mounting Options
21
INSTALLATION