HTP EFT-399 - Manual (Page 15)

15
LP-387 REV. 6.10.14
D. RESIDENTIAL GARAGE, CLOSET, AND ALCOVE INSTALLATIONS
Check with your local Authority Having Jurisdiction for requirements when installing boiler in a garage, closet, or alcove. Please read
the entire manual before attempting installation. Failure to properly take factors such as boiler venting, piping, condensate removal, and
wiring into account before installation could result in wasted time, money, and possible property damage and personal injury.
PRECAUTIONS
If the boiler is located in a residential garage, it should be installed per the latest edition of the National Fuel Gas Code, ANSI Z223.1,
and CGA-B149 Installation Code in Canada.

Mount the bottom of the boiler a minimum of 18” above the floor of the garage, to ensure the burner and ignition devices are
well off the floor.

Locate or protect the boiler so it cannot be damaged by a moving vehicle.
For closet or alcove installations, a two pipe venting system must be used. Failure to follow this warning could result in substantial
property damage, severe personal injury, or death.
The space must be provided with correctly sized combustion/ventilation air openings for all other boilers located in the space with the
boiler. Do not install the boiler in an attic. Failure to comply with these warnings could result in substantial property damage, severe
personal injury, or death.
NOTE: For installations using room air for combustion, refer to the boiler venting section, Part 6 in this manual.
E. EXHAUST VENT AND INTAKE PIPE
Vent pipes must be properly supported. The boiler exhaust and intake connections are not designed to carry heavy weight. Vent
support brackets must be within 1’ of the boiler and the balance at 4’ intervals. Venting must be readily accessible for visual inspection
for the first 3’ from the boiler.
The boiler is rated ANSI Z21.13 Category IV (pressurized vent, likely to form condensate in the vent), and requires a special vent
system designed for pressurized venting.
You must also install air intake piping from outdoors to the boiler flue adaptor. NOTE: To prevent combustion air contamination, see
Table 2 in this section when considering exhaust vent and intake pipe termination.
Exhaust vent and intake pipe must terminate near each other and vented vertically through the roof. Venting methods are detailed in
the Venting Section. Do not attempt installation using any other means. Be sure to locate the boiler so exhaust vent and intake pipe can
be routed through the building and properly terminated. The exhaust vent and intake piping lengths, routing and termination method
must all comply with methods and limits given in the venting section.
F. PREVENT COMBUSTION AIR CONTAMINATION
Install intake piping for the boiler as described in the Venting section. Do not terminate exhaust in locations that can allow
contamination of intake air.
PRODUCTS TO AVOID
AREAS LIKELY TO HAVE CONTAMINANTS
Spray cans containing fluorocarbons Dry cleaning/laundry areas and establishments
Permanent wave solutions Swimming pools
Chlorinated waxes/cleaners Metal fabrication plants
Chlorine-based swimming pool chemicals Beauty shops
Calcium chloride used for thawing Refrigeration repair shops
Sodium chloride used for water softening Photo processing plants
Refrigerant leaks Auto body shops
Paint or varnish removers Plastic manufacturing plants
Hydrochloric or Muriatic acid Furniture refinishing areas and establishments
Cements and glues New building construction
Antistatic fabric softeners used in clothes dryers Remodeling areas
Chlorine-type bleaches, laundry detergents, and cleaning solvents Garages and workshops
Adhesives used to fasten building products
Table 2