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Cast Iron Condensing Boilers – Installation Manual
FlexCore Stainless Steel Condensing Boilers – Installation Manual
The owner should maintain a record of all service work
performed with the date and a description of the work
done. Include the name of the service organization for
future reference.
Direct all questions to your RBI distributor or contact the
RBI Customer Service Department at: 260 North Elm
Street, Westfield, MA 01085. Always include the model
and serial numbers from the rating plate of the boiler in
question.
RATINGS & CAPACITIES
Before installing the FlexCore boiler check the rating
plate to ensure that the unit has been sized properly
for the job. Also ensure that the unit has been set up
for the type of gas available at the installation site.
Other important considerations are the availability of an
adequate electrical supply, fresh air for combustion and
a suitable vent system.
BOILER LOCATION
1. This boiler is suitable for indoor installations only.
Locate the boiler in an area that provides good
access to the unit. Servicing may require the
removal of jacket panels. Allow the minimum
clearances between adjacent construction and the
boiler as listed in Table 1.
Service clearances are not mandatory, but
are recommended to ensure ease of service
should it be required.
Table 1 - Clearances
2. An optimum site will be level, central to the piping
system, close to a chimney or outside wall and have
adequate fresh air for combustion. Ensure that the
unit is level from front to back and from side to side.
Use metal shims if leveling is required. Electrical and
electronic components must be protected from
exposure to water during operation and maintenance.
DO NOT install this boiler in a location that would
subject any of the gas ignition and other electronic
components to direct contact with water or excessive
moisture during operation or servicing.
3. Ensure that the floor is structurally sound and will
support the weight of the boiler.
The FlexCore may be installed directly on
combustible flooring, but never on carpeting.
4. Locate the boiler in an area that will prevent water
damage to adjacent construction should a leak
occur or during routine maintenance.
5. DO NOT place this boiler in a location that would
restrict the introduction of combustion air into the
unit or subject it to a negative pressure unless the
combustion air is piped from the outside, see the
COMBUSTION AIR & VENTILATION section.
6. NEVER place this boiler in a location that would
subject it to temperatures at or near freezing.
Never store combustible materials, gasoline
or any product containing flammable vapors
or liquids in the vicinity of the boiler. Failure to
comply with this warning can result in an
explosion or fire causing extensive property
damage, severe personal injury or death!
COMBUSTION AIR & VENTILATION
This boiler must be supplied with combustion
air in accordance with Section 9.3, Air for
Combustion & Ventilation, of the latest
revision of the National Fuel Gas Code, ANSI
Z223.1/NFPA 54 and all applicable local
building codes. Canadian installations must
comply with CSA B149.1 or .2 Installation
Code for Gas Burning Appliances and
Equipment, or applicable provisions of the
local building codes. Failure to provide
adequate combustion air for this boiler/water
heater can result in excessive levels of carbon
monoxide which can result in severe personal
injury or death!
To operate properly and safely this boiler requires a
continuous supply of air for combustion. NEVER store
objects on or around the boiler!
Combustion air contaminated with fluoro-
carbons or other halogenated compounds
such as cleaning solvents and refrigerants
will result in the formation of acids in the
combustion chamber. These acids will cause
premature failure of the boiler voiding the
warranty!
If the boiler is operated while the building is
under construction it must be protected from
wood, concrete, sheet rock and other types
of dust. Failure to properly protect the unit
from construction dust will damage the unit
voiding the warranty!
Clearance to Combustibles
Service Clearance
in
mm
in
mm
Top
6
153
30
762
Back
6
153
24
610
Left Side
6
153
24
610
Right Side
6
153
24
610
Front
6
153
36
914
Flue
6
153
