1-3
INSTALLATION
SFT 199 TANKLESS WATER HEATER
1.2 CODE REQUIREMENTS
The SFT water heaters are certifi ed under CSA 4.3 / ANSI Z21.10.3.
The installation must conform to the requirements of the authority having
jurisdiction or, in the absence of such requirements, to the
National Fuel Gas
Code, ANSI Z223.1/NFPA 54, and/or Natural Gas and Propane Installation Code,
CAN/CSA B149.1.
The installation must also conform to the Canadian Electrical
Code Part 1 CSA C22.2 No.1 and/or the National Electrical Code ANSI/NFPA 70.
1.3 LOCATION
The SFT series unit is designed and approved for indoor installation. Its venting
options provide fl exibility of location; for example, placement in an alcove,
basement, utility room or closet. The unit is approved for installation in a closet
(see Table 2 for clearances to combustibles).
Conditions for safe installations
Ensure that the surrounding conditions are 0°C to 50°C
and less than 90%
relative humidity.
Install the unit in areas where the combustion air source is not subject to
chemical fouling or agricultural vapours.
Exposure to corrosive chemical fumes such as chlorinated and/or
fl uorinated hydrocarbons can reduce the life of a water heater.
Cleaners,
bleaches, air fresheners, refrigerants, aerosol propellants, dry-cleaning fl uids,
de-greasers and paint-removers contain vapors that can form corrosive acid
compounds when burned in a gas fl ame. Also avoid airborne chlorides such as
those released with the use of laundry detergents.
Avoid installing the unit where water leakage may damage the area (for example,
above carpeting). If a location such as this cannot be found, a suitable drain pan
should be installed under the appliance.
Water heater fastening
Approximate weight for the empty water heater is 68 lbs / 31 kg. For support
fasteners, use the four 1¾" long lag screws. Installers will supply ¼" bolts if metal
mounting systems are used. Attach fasteners to solid material that are capable of
supporting the combined weight of the unit and piping assembly components.
Water heater clearance
Other factors affecting potential mounting sites:
•
Ensure minimum clearance requirements for combustible materials
(see
Table 2)
are satisfi ed.
•
For ease of access, we recommend a minimum 24" clearance at the front and
10" above. Check local codes for additional access and service clearance
requirements.
•
At a new construction site, or during renovations, protect the unit from
drywall dust or other construction related contaminants. Combustion air
must be drawn from a CLEAN source (e.g. outdoors) and the unit must be
isolated from interior dust sources.
WARNINGS
- Keep the unit area free
and clear of combustible
materials, gasoline, and
other fl ammable vapours and
liquids.
- C
ombustion air must not be
drawn from areas containing
corrosive air from swimming
pools or spas, including air
directly next to outdoor pools
and spas.
- T
he unit must not be
exposed to water leaks from
piping or components located
overhead. This includes
condensation dropping from
un-insulated cold water lines
overhead.
- 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.)
