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1
Determine boiler location
Installation must comply with:
• Local, state, provincial, and national codes, laws, regulations,
and ordinances.
• National Fuel Gas Code, ANSI Z223.1 – latest edition.
• Standard for Controls and Safety Devices for Automatically
Fired Boilers, ANSI/ASME CSD-1, when required.
• National Electrical Code.
The Outdoor Knight XL gas manifold
NOTICE
and controls met safe lighting and other
performance criteria when the boiler
underwent tests specifi ed in ANSI Z21.13 –
latest edition.
Outdoor models must be installed outdoors
WARNING
only and must use the outdoor vent
assembly supplied by the manufacturer.
Personal injury or product damage may
result if any other venting is used or if an
outdoor model is used indoors. All covers,
doors and jacket panels must be properly
installed to ensure proper operation and
prevent a hazardous condition.
This product contains a condensate
WARNING
management and disposal system that
may be subject to freezing if exposed to
sustained
Precautions should be taken to protect
the condensate trap and drain lines during
extended periods of outdoor temperatures
below 32°F. Consult the manufacturer
(and see Table 1A below) for an optional
condensate trap kit recommended for areas
which may experience temperatures below
32°F. Note: This condensate option is only
available for Models OK 151 - 286 and
501 - 801.
Model OK 400 is NOT suitable for installation
WARNING
in areas which may experience temperatures
below 32°F.
Table 1A - Ambient Temperature
Requirements
Model
Kit Number
OK 151/211
KIT30123
OA 151/200
OK/OA 286
KIT30124
OK/OA
KIT30125
501 - 801
Before locating the boiler, check:
1.
Check for nearby connection to:
• System water piping
• Gas supply piping
• Electrical power
2.
- Keep venting areas free of obstructions.
- Keep area clean and free of combustible and fl ammable
materials.
- To avoid a blocked air inlet or blocked fl ue condition,
keep the outdoor air inlet and fl ue outlet clear or leaves,
debris, etc.
8
temperatures
below
32°F.
Minimum Allowable
Ambient Temperature
5°F
5°F
10°F (OK/OA 501)
5°F (OK/OA 601 - 801)
Outdoor Knight XL Installation & Operation Manual
Do not install outdoor models directly on
CAUTION
the ground. You must install the outdoor
unit on a level concrete, brick, block, or
pressure-treated wood platform.
Do not locate unit so that high winds can
CAUTION
defl ect off of adjacent walls, buildings
or shrubbery causing recirculation.
Recirculation of fl ue products may cause
operational problems, bad combustion or
damage to controls. Locate unit at least
3 feet (0.91m) from any wall or vertical
surface to prevent wind conditions from
affecting performance.
The unit must not be installed in an area
CAUTION
that is enclosed by walls or a fence that
will block free wind movement around
the appliance. Free movement of wind
around the outdoor unit is required
to carry away the fl ue products and
provide combustion air. The fl ue outlet/
combustion air inlet of an outdoor unit
must not be installed closer than 10 feet
from an inside corner of an L-shaped
structure. Walls or enclosed fencing may
cause eddy currents which can recirculate
the fl ue products into the combustion
air inlet. Recirculation of fl ue products
may cause operational problems, bad
combustion or non-warrantable damage
to controls.
Locate the unit at least 3 feet (0.91m)
outside any overhang.
Do not install in locations where rain from
CAUTION
building runoff drains will spill onto the
unit.
Do not locate the unit so that water from
sprinklers may spray directly onto it. Water
may damage controls or other electrical
components.
Do not install the unit under a deck.
WARNING
Do not install the unit in a well, stairwell,
alcove, courtyard or other recessed area.
Do not install outdoor units on stack
frames. Failure to comply with the above
may result in severe personal injury, death
or substantial property damage.
3.
Check area around the boiler. Remove any combustible
materials, gasoline and other fl ammable liquids.
Failure to keep boiler area clear and free
WARNING
of combustible materials, gasoline, and
other fl ammable liquids and vapors can
result in severe personal injury, death, or
substantial property damage.
4. If a new boiler will replace an existing boiler, check for
and correct system problems, such as:
• System leaks causing oxygen corrosion or heat exchanger
cracks from hard water deposits.
• Incorrectly-sized expansion tank.
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