4
If the boiler is part of a planned heating system,
locate it where shown on your plan. If boiler is to
be part of an existing system, it is usually best to
put it where the old one was. If you plan to change
location, you will need additional materials as well
as an adequate base. The following rules apply:
1. The boiler must be level. Metal shims may be
used under base legs for final leveling.
2. Use a raised base if floor can become wet or
damp.
3. The vent pipe connection should be as short
as possible.
loCAtING the BoIleR
4. Additional clearances for service may exceed
clearances for fire protection. Always comply
with the minimum fire protection clearances
shown on the boiler. An 18 inch clearance
should be maintained on any side where
passage is required to access another side for
cleaning, servicing, inspection or replacement
of any part that may need attention. An 18 inch
clearance is recommended on the control side
for servicing.
Figure #2
Shows minimum clearances to
combustible construction. Rooms that are large
in comparison with the size of the boiler are
defined as rooms having a volume equal to or
greater than 16 times the volume of the boiler.
Where the actual ceiling height of a room is
greater that 8’, the volume of a room shall be
figured on the basis of a ceiling height of 8’.
Determination of room size should be based
on the total volume of all gas fired equipment
installed in the room. Consult the National Fuel
Gas Code for further information, including
approved methods for reducing clearances in
large room.
5. Equipment shall be installed in a location
in which the facilities for ventilation permit
satisfactory combustion of gas, proper venting,
and maintenance of ambient temperature at
safe limits under normal conditions of use.
Equipment shall be located so as not to interfere
with proper circulation of air. When normal
infiltration does not provide the necessary air,
outside air shell be introduced (
see Following
Page -
“Fresh Air for Combustion”
).
THIS UNIT MUST BE SET ON A CONCRETE OR OTHER
NONCOMBUSTIBLE MATERIAL BASE OR FLOOR. IT MUST NOT
BE INSTALLED ON CARPETING.
6. Advise owner to keep air passages free of
obstructions. Ventilating and combustion air
must enter boiler room without restrictions.
7.The floor supporting the boiler must be
noncombustible. If it is combustible, please refer
to the Repair Parts section in the back of this
manual for the appropriate Combustible Floor
BOILER MINIMUM CLEARANCE TO COMBUSTIBLES
Unit
Alcove, or Room Not
Large in Comparison
With Boiler
Room Larger in
Comparison With
Boiler
Top
6”
6”
Rear
6”
6”
Control Side
8”
8”
Opposite Side
6”
6”
Front
18”
18”
Flue/Vent Connector
6”
6”
Near Boiler Piping
1”
1”
This unit must be set on a concrete or other noncombustible material
base or floor.
IT MUST NOT BE INSTALLED ON CARPETING.
BOILER
Rear
Front
Control Side
Opposite Side
8”
18”
6”
6”
Figure #2
BOILER VOLUME SPECIfICATIONS
Boiler Size
(Number of
Sections)
Boiler
Volume
(Cu. Ft.)
Minimum Room
Volume Required To Be
Large Room (Cu. Ft.)
2
4.3
68.7
3
5.6
89.0
4
6.8
109.3
5
8.1
129.5
6
9.4
149.8
7
10.6
170.1
Summary of Contents for XEB-2
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