Page 13
N
EO
T
HERM
Boilers and Water Heaters
Section 2 -
LOCATING THE APPLIANCE
2.1 General Information
The ‘Indoor’ NeoTherm is designed and CSA-certified
for indoor installations only.
The ‘Outdoor’ NeoTherm is designed and CSA-certified
for outdoor installations only.
If installing in a location that may experience freezing
temperatures, precautions must be taken to prevent water
in the heat exchanger and condensate inside and outside of
the boiler from freezing. Damage due to freezing water or
condensate is not covered by the warranty.
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.
1. Always install the unit on a firm, level surface.
The NeoTherm is design certified by CSA-International for
installation on combustible flooring; in basements; in closets,
utility rooms or alcoves
. NeoTherm Boilers must never be
installed on carpeting.
The location for the appliance should
be chosen with regard to the vent pipe lengths and external
plumbing and on a level surface.
The
Indoor NeoTherm
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 unit 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
Outdoor NeoTherm
must be installed at least 10 ft (the
vent pipe) from any door or window that can be opened. The
exhaust vent shall bot be under any overhang or roof. Use
only the vent components included with the boiler.
The dimensions and requirements that are shown in Table 3
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 4
are followed.
For concentric vent terminal kit (optional), follow installation
instructions included with the kit.
APPLIANCE
INDOOR
OUTDOOR
SURFACE
INCHES
CM
INCHES
CM
Left Side
1
2.5<_____
same
Right Side
12
31<_____
same
Top
24
61
48
122
(for flue)
Back
6
15<_____
same
Closet, Front
(285-500)
6
15<_____
same
Alcove, Front
(285-500)
24
61<_____
same
Front
(600-850)
24
61<_____
same
Vent
–
–
– –
Certified by CSA for zero clearance to
combustible materials on all sides.
INTAKE / EXHAUST
STANDARD MAX EQUIV.
OPTIONAL
MAX EQUIV.
SIZE VENT
FT.
M
VENT
FT.
M
150 3”
100
30.5
n/a — —
199/210 3”
100
30.5
n/a — —
285 4”
100
30
n/a — —
399 4”
100
30
n/a — —
500 4”
100
30
n/a — —
600* 4”
40
6.1
6”
100
30
750 4”
40
6.1
6”
100
30
850 4”
40
6.1
6”
100
30
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 the stainless steel vent suppliers listed in Section 3.
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.
The installer must comply fully with the manufacturer’s installation
instructions, including use of minimum exhaust length CPVC, to main-
tain 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 90°
*
elbow used.
* For any combination of vent and intake lengths up to 40 equivalent
feet, any even or uneven combination of length is allowed. For overall
lengths greater than 40 equivalent feet, the exhaust may be up to 20
feet greater than the intake length.
*
Add 2
1/2
feet (.76 meters) for each 45 elbow used.
Table 3. Suggested Service Clearances
Table 4. Vent / Air Pipe Sizes and Length
NOTE:
When located on the same wall, the NeoTherm
combustion air intake terminal must be installed
a minimum of 12” below the exhaust terminal.
Models 399-850 also require a minimum horizontal
distance from intake to exhaust terminal of 36”.
Summary of Contents for NTH
Page 4: ...LAARS Heating Systems...
Page 13: ...Page 9 NEOTHERM Boilers and Water Heaters 38 1 2 98 8 3 4 22 7 1 2 19 64...
Page 30: ...Page 26 LAARS Heating Systems Figure 21 Hydronic Piping Single Boiler Zoning with Circulators...
Page 86: ...Page 82 LAARS Heating Systems Parts Illustration 1 Jacket Components...
Page 88: ...Page 84 LAARS Heating Systems Parts Illustration 4 Internal Components Sizes 750 850...
Page 90: ...Page 86 LAARS Heating Systems Parts Illustration 6 Gas Train Components Sizes 600 850...
Page 93: ...Page 89 NEOTHERM Boilers and Water Heaters Notes...
Page 94: ...Page 90 LAARS Heating Systems Notes...
Page 95: ...Page 91 NEOTHERM Boilers and Water Heaters Notes...
