1-3
INSTALLATION
SL 80-399 MODULATING GAS BOILER
SL 26-260 G3, SL 40-399 G3 MODULATING GAS BOILERS
1.2 CODE REQUIREMENTS
The boilers are tested and certified 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 conflict, then the more
stringent requirement will apply.
1.3 LOCATION
The boilers are designed and approved for indoor installation (wall or rack mounting), with
significant flexibility of location provided with the available venting options. The boiler can
be placed in an alcove, basement, closet or utility room. Surrounding conditions shall be
32°F (0°C) to 122°F (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 fluorinated hydrocarbons can reduce the life of a boiler. Cleaners, bleaches, air
fresheners, refrigerants, aerosol propellants, dry-cleaning fluids, de-greasers and paint-
removers all contain vapors which can form corrosive acid compounds when burned in a
gas flame. Airborne chlorides such as those released with the use of laundry detergents
are also to be avoided. For this reason, the indoor air venting option using air surrounding
the boiler should not be used 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.
Locate the boiler where water leakage will not result in damage to the area. If a location
such as this cannot be found, a suitable drain pan should be installed under the appliance.
The boiler is not to be installed above carpeting.
Boiler weight – without water and any effect of system piping and components – is up to
approx. 240 lbs/110 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 mounting sites:
•
Adhere to the minimum clearance requirements for combustible materials (see Table
2).
•
A minimum 24" clearance at the front and 12” above the boiler is recommended for
adequate servicing. Check local codes for additional access and service clearance
requirements.
WARNING
Keep boiler area free and clear of
combustible materials, gasoline,
and other flammable vapors and
liquids.
WARNING
Combustion air must not be
drawn from areas containing
corrosive air from swimming
pools or spas, including air
directly next to outdoor pools
and spas.
WARNING
The boiler shall not be exposed
to water leaks from piping or
components located overhead.
This includes condensation
dropping from un-insulated cold
water lines overhead.
WARNING
Ensure the gas ignition system
components are protected from
water (dripping, spraying, rain,
etc.) during appliance operation
and when servicing (pump
replacement, condensate trap
servicing, control replacement,
etc.)
