Valor Madrona MF28EN, Installation & Operating Instructions Manual

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1
Venting
KEY VENT TERMINAL LOCATIONS - MINIMUM DISTANCES MINIMUM
CLEARANCE
Inches Cm
A Clearance above grade, verandah, porch, deck or balcony 1 0
B Clearance to window or door that may be opened 1 0
C Clearance to permanently closed window (recommended to prevent
condensation on window)
1 0
D Vertical clearance to ventilated soffit located above the terminal within a
horizontal distance of 2 feet (60 cm) from the center-line of the terminal
18
E Clearance to unventilated soffit 1 0
F Clearance to outside corner 1 0
G Clearance to inside corner 1 0
H Horizontal clearance to center-line of meter/regulator assembly located within 15
feet (4.6 m) below the terminal
90
I Clearance to service regulator vent outlet 90
J Clearance to non-mechanical air supply inlet to the building or the combustion air
inlet to any other appliance
1 0
K Clearance to a mechanical air supply inlet 180
L Clearance above paved sidewalk or a paved driveway located on public property
Note : A vent must not terminate directly above a sidewalk or paved driveway,
which is located between two single-family dwellings and serves both dwellings
8 10
M Clearance under a verandah, porch, deck or balcony
Only permitted if veranda, porch, deck or balcony is fully open on a minimum of 2
sides beneath the floor
1 0
Note:
Local codes and regulations may require different clearances.
Horizontal
Vent
Termination
The vent terminal must be located on an outside wall or through the roof.
This direct vent appliance is designed to operate when an undisturbed airflow hits the
outside vent terminal from any direction.
The minimum clearances from this terminal that must be maintained when located on an
outside wall are shown in the figure below. Any reduction in these clearances could result
in a disruption of the airflow or a safety hazard. Local codes or regulations may require
greater clearances.
The vent terminal must not be recessed into a wall or siding.
The vent terminal should be positioned where it will not be covered by snowdrifts.
Sidewall vent terminations within 7’ of grade require a terminal guard when using a 551DVK.
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