P/N 42-9450 8/08 Copyright 2008 Hydrotherm
Page 7 KN INSTALLATION AND OPERATION INSTRUCTIONS
Installation site preparation
Boiler location requirements
Do not install the boiler unless the location
meets all of the requirements in this box.
Failure to comply could result in severe personal
injury, death or substantial property damage.
Indoor installation only
Do not install the boiler outside or in an area that would
expose the boiler or its gas or electrical components to rain
or dripping or spraying water.
Do not install the boiler in a location that would subject the
boiler to freezing. Where freeze protection is needed, follow
the guidelines in this manual.
Flooring
e boiler can be installed on combustible ooring, but
must not be installed on carpeting.
e oor must be structurally sound and capable of support-
ing the weight of the boiler.
e boiler must be leveled front to back and side to side.
Use metal shims if necessary.
Accessibility
Jacket parts will have to be removed for some service proce-
dures. Ensure that the location provides a reasonable means
for service and operation of the boiler.
System piping, fuel and electrical supply
e boiler must be located such that piping for water, gas,
vent and air can reasonable be connected.
ere must be a reasonable means of providing electrical
supply to the boiler.
Adjacent construction
Locate the boiler in an area that will prevent water
damage to adjacent construction should a leak occur or
during routine maintenance.
Combustion air
Do not place the boiler in a location that would restrict
the ow of combustion air into the air intake or subject the
boiler to a negative air pressure in the space when using air
from the boiler room.
Provide required combustion air openings to the boiler
room and the building (when required) when using air
from the boiler room for combustion (see page 8). If air is
piped to the boiler air intake connection, combustion air
openings are not required unless other appliances share the
same room.
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Buildings will require the installation of a fresh air duct
or other means of providing make-up air if the intake air
option isn’t used. Any building utilizing other gas burning
appliances, a replace, wood stove or any type of exhaust
fan must be checked for adequate combustion air when all
of these devices are in operation at one time. Sizing of an
outside air duct must be done to meet the requirements of
all such devices.
e boiler must be supplied with combustion air in
accordance with Section 5.3, “Air for Combustion and
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.
Negative room pressure
Never operate the boiler in an environment subjected to
a negative pressure unless it is Direct Vented. Failure to
comply with this warning can result in excessive levels of
carbon monoxide.
Combustion air contamination
Combustion air contaminated with uorocarbons or other
halogenated compounds such as cleaning solvents and
refrigerants will result in the formation of acids in the
combustion chamber. ese acids will cause premature
failure of the boiler.
Construction dust: 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 boiler from construction dust will
damage the boiler.
If the boiler has been operated with contaminated air, it
must be thoroughly inspected. Where possible, boiler com-
ponents must be cleaned, following instructions provided
in this manual and/or supplementary instructions from
Hydrotherm. Where cleaning is not possible, the boiler
may have to be replaced.
Never store combustible materials, gasoline or any product
containing ammable vapors or liquids in the vicinity of the
boiler.
Clearances
All installation must provide the minimum clearances to
combustible materials given on page 7.
e installation should provide the minimum service clear-
ances given on page 7 when possible. If these clearances
cannot be met, then:
Ensure that boiler components can be accessed for
operation/start-up/maintenance as required in the
KN
manuals.
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