Lanair MX 75, Руководство по установке и эксплуатации

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NFPA rules for flue height above roof
• Contact your local building or fire officials
about restrictions and an installation
inspection.
• Run the flue vertical from the damper tee out
through the roof. If this is not possible, two
offsets (30° maximum) are allowable for U.L.
103 Listed Flue Kits (refer to figure).
•
Single wall flue (minimum wall
thickness of 24 Gauge steel) may be used in
heated space, but must be kept a minimum
distance (air space only) of 18 inches (46
cm) from combustible surfaces (check
building and fire codes for precedence).
ANY PORTION OF THE FLUE SYSTEM
THAT PASSES THROUGH UNHEATED
SPACE / CONCEALED AREAS AND ANY
Roof
Maximum of two offsets (30º
maximum) are allowed for UL
103 Listed flue. 2 offsets = 4
elbows.
Offset in flue stack
PORTION OUTSIDE THE BUILDING IS TO BE CLASS-A DOUBLE WALL FACTORY-
BUILT FLUE THAT IS APPROVED TO STANDARD U.L. 103, OR EQUIVALENT.
Refer to the manufacturer’s instructions on the minimum clearance required for the
double-wall product used. Install flue system per the flue manufacturer’s instructions,
making sure to fully comply with national safety standards such as NFPA 31, 54, and
211. Refer to fire and building codes for further requirements.
Improper installation of the flue system could result in property damage,
serious injury or death.
•
Whenever possible, avoid 90 degree elbows and horizontal runs, as these will collect ash
and require regular cleaning.
•
Properly support the flue stack. Do not rely on the heater to support the total load of the
flue system. Follow the flue manufacturer’s instructions for support kits.
•
Use a dedicated flue system for each appliance. Do not share a flue system with
another appliance or fireplace.
•
The flue is required to extend at least 3 feet above
the highest point where it passes through the roof
of a building, and at least 2 feet higher than any
portion of a building within 10 feet (NFPA 31, 54
and 211 – see figure). For increased margin,
Lanair recommends extending the flue further
than the minimum guidelines.
• Minimum stack height: 10 feet, plus 1 foot for each
additional tee or elbow. Refer to local codes,
which may require additional stack height based on BTU input.