1-3
INSTALLATION
SL 10-85 G3, SL 14-115 G3, SL 20-160 G3, SL 30-199 G3 MODULATING GAS BOILERSSL 10-85 G3, SL 14-115 G3, SL 20-160 G3, SL 30-199 G3 MODULATING GAS BOILERS
1.2 CODE REQUIREMENTS
The SL models were tested to and certied under CSA 4.9-2014 / ANSI Z21.13-2014.
Installation must conform to local codes, or in the absence of these, with the latest editions
of CAN/CGA B149.1 and the Canadian Electrical Code Part 1 CSA C22.2 No. 1.
In the US, installations must conform to the current National Fuel Gas Code ANSI
Z223.1 and the National Electrical Code ANSI/NFPA 70. Where required by jurisdiction,
installation must conform to the Standard for Controls and Safety Devices for
Automatically Fired Boilers, ANSI/ASME CSD-1. If there is any conict, then the more
stringent requirement will apply.
1.3 LOCATION OF A BOILER
The boilers are designed and approved for indoor installation (wall or rack mounting), with
exibility of location provided with the available venting options. The boiler can be placed
in an alcove, basement, closet or utility room. Surrounding conditions need to be 0°C to
50°C and less than 90% relative humidity.
Install the boiler in areas where the combustion air source is not subject to chemical
fouling or agricultural vapors. Exposure to corrosive chemical fumes such as chlorinated
and/or uorinated hydrocarbons can reduce the life of a boiler. Cleaners, bleaches, air
fresheners, refrigerants, aerosol propellants, dry-cleaning uids, de-greasers and paint-
removers all contain vapors which can form corrosive acid compounds when burned in a
gas ame. Airborne chlorides such as those released with the use of laundry detergents
are also to be avoided. For this reason, do not use the indoor air venting option (using air
surrounding the boiler) in a laundry room. Similarly, ensure any direct vent air source is
not adjacent to a clothes dryer exhaust terminal. Avoid agricultural applications where the
boiler and/or the intake air source are affected by ammonia and/or dust.
Avoid installing a boiler where water leakage will cause damage; for example, above
carpeting. If unavoidable, install a suitable drain pan under the appliance.
Boiler Weight – up to 150 lbs / 68 kg. For support fasteners, use the supplied 6 x 1/4” x
2 1/2” long lag screws. Installer to supply 1/4” bolts if metal mounting systems are used.
Fasteners are to be attached to solid material capable of supporting the combined weight
of the boiler and piping assembly components.
Other factors to consider for potential mounting sites:
• The minimum clearance requirements for combustible materials (see
Table 2).
• A minimum 24" clearance at the front and 10” above the boiler is recommended for
adequate servicing. Check local codes for additional access and service clearance
requirements.
• At a new construction site, or during renovations, action must be taken to protect
the boiler from drywall dust or other construction related contaminants; combustion
air should be drawn from a CLEAN source (e.g. outdoors) and the boiler should be
isolated from interior dust sources.
WARNING
Keep a boiler area free and
clear of combustible materials,
gasoline, and other ammable
vapors and liquids.
WARNING
Ensure combustion air is not
drawn from areas containing
corrosive air from swimming
pools or spas, including air
directly next to outdoor pools
and spas.
WARNING
Ensure a boiler is not exposed
to water leaks from piping or
components located overhead,
including condensation from
un-insulated cold water lines
overhead.
WARNING
Protect the gas ignition system
components from water (dripping,
spraying, rain, etc.) during
appliance operation and when
servicing (pump replacement,
condensate trap servicing, control
replacement, etc.)
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