Laars LMH, Инструкция по установке и эксплуатации, Страница: 8 / 52

LAARS Heating Systems
Page 6
SECTION 2.
Locating the Appliance
2.1 Locating the Appliance
Mascot II is for indoor, wall-mounted
installations only.
The appliance should be located to provide
clearances on all sides for maintenance and inspection.
It should not be located in an area where leakage of any
connections will result in damage to the area adjacent to
the appliance or to lower floors of the structure.
When such a location is not available, it is
recommended that a suitable drain pan, adequately
drained, be installed under the appliance.
The appliance is design certified by CSA-
International for wall-mounted installation in
basements; in closets, utility rooms or alcoves . The
location for the appliance should be chosen with regard
to the vent pipe lengths and external plumbing and
on a plumb (vertical) wall. The unit shall be installed
such that the gas ignition system components are
protected from water (dripping, spraying, rain, etc.)
during operation and service (circulator replacement,
control replacement, etc.). When vented vertically, the
Mascot II must be located as close as practical to the
vertical section of the vent. If the vent terminal and/or
combustion air terminal terminate through a wall, and
there is potential for snow accumulation in the local
area, both terminals should be installed at an appropriate
level above grade or the maximum expected snow line.
The dimensions and requirements that are shown
in Table 1 should be met when choosing the locations
for the appliance.
2.2 Locating Appliance for Correct Vent
Distance from Outside Wall or
Roof Termination
The forced draft combustion air blower in the
appliance has sufficient power to vent properly when the
guidelines in Table 2 are followed.
NOTE: When located on the same wall, the Mascot
II combustion air intake terminal must be installed a
minimum of 12" below the exhaust terminal.
For concentric vent terminal kit (optional), follow
installation instructions included with the kit.
APPLIANCE SUGGESTED SERVICE ACCESS CLEARANCE
SURFACE INCHES CM
Left Side 6 15
Right Side 6 15
Top 6 15
Closet, Front 6 15
Front 24 61
Vent 1 3
Certified by CSA for zero clearance to
combustible materials on all sides.
Table 1. Clearances.
INTAKE / EXHAUST
MAX EQUIV. CONCENTRIC MAX EQUIV.
SIZE VENT FT. M VENT FT. M
125 2" 40 6.1 3/5" 40 6.1
125 * 3" * 100 30.5 3/5" 40 6.1
Installations in the U.S. require exhaust vent pipe that is a combination
of PVC & CPVC complying with ANSI/ASTM D1785 F441 or stainless
steel complying with UL1738. Installations in Canada require exhaust
vent pipe that is certified to ULC S636.
Intake (air) pipe must be PVC or CPVC that complies with ANSI/ASTM
D1785 F441, ABS that complies with ANSI/ASTM D1527 or galvanized
material.
Installer must comply fully with manufacturer's installation instructions,
to maintain ANSI Z21.13 safety certification.
Closet and alcove installations do not allow the use of PVC under any
circumstances
To calculate max equivalent length, measure the linear feet of the pipe,
and add 5 feet
(1.5m) for each elbow used.
*
Must use 2x3 adapter within 1 ft. (30cm) of boiler exhaust outlet.
Table 2. Vent / Air Pipe Sizes.