Harman Stove Company PB 105 - Manual (Page 14)

14 3-90-07205R19_05/13
Outside Air
To install outside air, use 2 3/4” I.D.galvanized steel flex
pipe, part # 2-00-08544 ( 12’ 6” length) or part # 2-00-
08545 ( 25’ length) See Fig. 6. There is a break-away
hole on the rear panel which must be removed before
connecting the flex pipe. See Fig. 7.
When the appliance is side wall vented: The air intake
is best located on the same exterior wall as the exhaust
vent outlet, and located lower on the wall than the vent
outlet.
When the appliance is roof vented: The air intake is
best located on the exterior wall oriented toward the
prevailing wind direction during the heating season.
Never terminate the outside air above the vent pipe
outlet. The maximum length of this pipe is 20 feet. Inlet
cover part number 1-10-09542 should be used to keep
birds, rodents etc.out of the inlet pipe. See Fig.6.
NOTE: The inlet cover should not be placed in an area
where drifting of snow or ice will build up, blocking the
intake air supply.
The Outside Air knockout is located on the face of the
Feeder Cover. It is pre-cut except for several small
tabs. There is also a filler plate screwed to the inside
to cover the top of the hole after the Outside Air Pipe
has been installed. This will allow for removal of the
Feeder Cover without disconnecting the Outside Air
Pipe. See Fig. 7.
Only metal Intake Flex should be used for the Outside
Air Supply connection.
The Outside Air Intake Pipe is inside the Feeder Cover
and to the right of the feeder motor. The 2 3/4” steel flex
pipe is made to slide over the outside of the Air Intake
Pipe. See Fig. 8. It should be held into place with some
silicone, foil tape, or a hose clamp. (not supplied)
Heat Reclaiming Ventilation System (HRV)
When installing in a house with a Heat Reclaiming
Ventilation System (HRV) be sure the system is balanced
and is not creating a negative pressure in the house.
Installation
Inlet Cover part#
1-10-09542
Fig. 6
Fig. 7
Outside Air Pipe
Knockout
Feeder Cover
Fig. 8
Hopper/Feeder
Swing Plate
Knob
Outside Air Inlet Pipe