LAARS Mighty Therm LO-NOx PH (Sizes 250/400) - Install and Operating Manual - Manual (Page 8)

LAARS Heating Systems
Page 8
Figure 17. Alcove Installation.
Closet Installation
(unacceptable)
A closet is any 4 sided enclosure
which is less than 16* times the
total volume of all the gas fired
appliances within the enclosure.
Room Installation
(acceptable)
A room is any enclosure which is
at least 16* times greater than the
total volume of all the gas fired
appliances within the enclosure
Alcove Installation
(acceptable)
An alcove suitable for the
installation of a heater is a
restricted section of a room not
separated from the room by a door
or partition and which meets the
minimum clearances specified in
this manual.
* When the ceiling height exceeds 8 feet, you are only allowed to
consider 8 feet when calculating the total volume of the enclosure.
REAR
FRONT
Figure 19. Outdoor Location Installation.
Figure 18. Incorrect Outdoor Installation.
WINDOW
OR GRILL
INDOOR
ROOM
4 ft.
(1.2m)
10 ft.
(3.0m)
4 ft.
(1.2m)
Forced Air Inlet
Minimum Clearances
4 ft.
(1.2m)
3 ft.
(0.9m)
2.3.2 Outdoor Installation
Caution
Outdoor installations are not recommended in areas
where the danger of snow blockage exists.
Avertissement
L’installation à l’extérieur n’est pas recommandée
dans les zones où il y a des risques d’obstruction
par la neige.
1. Locate the boiler in an open, unroofed area. Do
not locate the boiler below or adjacent to any
doors, windows, louvers, grills, etc., which
connect in any way with an inhabited area of a
building, even though the access might be
through another structure such as a garage or
utility room (see Figure 18 and Table 1).
2. There must be a minimum of 4 feet (1.22 m)
horizontally and vertically between the boiler and
any door, window, or gravity inlet to a building
(see Figure 19).
3. Minimum clearance of 4 feet (1.22m) [6 feet
(1.83m) in Canada] horizontally from, and in no
case above or below, unless the minimum
horizontal distance is maintained, from electric
meters, gas meters, regulators and relief
equipment.
4. If the boiler is installed close to a structure,
protect it from rain water runoff with rain gutters
on the roof or other measures. Do not locate the
boiler near sprinkler systems that could spray
water on it.
5. Avoid locations where wind deflection off nearby
structures might cause wind loading and
downdraft conditions. Where downdraft
conditions exist, locate the boiler at least 3 feet
(0.91 m) from the structure.
2.3.3 Flooring - Typical Installation
All outdoor boilers must be installed with the
special base, as a standard part of the boiler. The base,
part number R0368900, is provided in a separate
package. The boiler is designed and certified for
installation on combustible flooring. NEVER install
the boiler on carpeting. NEVER store objects on or
around the base of the boiler. For outdoor base
installation, see Figure 20.
2.4 Combustion and Ventilation
Air Supply
All indoor installations must have openings to
outside air for combustion, ventilation and dilution of
flue gases from inside the building (see Figure 21 and
OUT OF
PRODUCTION