Hatco Powermite PMG-100 Manuel D'installation Et D'utilisation page 18

INSTALLATION
To avoid freezing water damage to the Booster Water
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:
• The appliance shall have dedicated venting and not share
common or multi-story flue configurations.
• 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) to prevent sagging.
• All horizontals must have an upward pitch of at least 1/4"
per foot.
• Right angle adapter is provided to minimize radius of initial
bend toward flue piping required for tight quarters.
NOTE: Right angle duct outlet may be installed with duct exiting
up, to the left, or to the right. Do NOT install with duct
exiting down.
• 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.
- 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.
CAUTION
Non-Combustible
Sidewall Termination
Through-the-wall
fitting or thimble
(supplied by others)
Vent
Pipe
Non-
Combustible
Wall
Sidewall Termination
Through-the-wall
fitting or thimble
(supplied by others)
Vent
Pipe
Maintain 1" (25 mm)
minimum clearance
from combustible
materials.
Combustible
Wall
Typical Through-the-Wall Venting
If outside air temperature is 32°F (0°C) or below, do not turn
heater off when not in use. This is to reduce the potential for
cold outside air to freeze the water in the heat exchanger.
18
English
Cover Plate
Sealant
Minimum distance
of 12" (305 mm)
Termination Tee
(supplied by
vent manufacturer)
Combustible
Cover Plate
Sealant
Minimum distance
of 12" (305 mm)
Termination Tee
(supplied by
vent manufacturer)
NOTICE
PMG100200M-0222