Outdoor Installation Venting - Lochinvar 000 - 2 Installation And Service Manual

Hydronic Heating Boilers and
Domestic Water Heaters
INSTALLATION
Continued
4. Turn on clothes dryers and any other appliances not
connected to the common venting system. Turn on any
exhaust fans, such as range hoods and bathroom exhausts, so
they will operate at maximum speed. Do not operate a
summer exhaust fan.
5. Close fire place dampers.
6. Place in operation the unit being inspected. Follow the
lighting instructions. Adjust thermostat so unit will operate
continuously.
7. Test for spillage at the draft hood/relief opening after 5
minutes of main burner operation. Use the flame of a
match or candle, or smoke from a cigarette, cigar or pipe.
8. After making sure that each appliance remaining
connected to the common venting system properly vents
when tested as above, return doors, windows, exhaust fans,
fireplace dampers and other gas burning appliances to their
previous conditions of use.
9. Correct any improper operation of the common venting
system so that the installation conforms to the latest edition
of the National Fuel Gas Code, ANSI Z223.1, in Canada,
the latest edition of CAN/CGA-B149 Installation Code for
Gas Burning Appliances and Equipment. When resizing
any portion of the common venting system, resize to
approach the minimum size as determined using the
appropriate tables of the latest edition of the National Fuel
Gas Code, ANSI Z223.1, in Canada, the latest edition of
CAN/CGA-B149 Installation Code for Gas Burning
Appliances and Equipment.
Masonry Chimney Installations
A masonry chimney must be properly sized for the installation
of a high efficiency gas-fired appliance. Venting of a high
efficiency appliance into a cold or oversized masonry chimney
can result in operational and safety problems. Exterior
masonry chimneys, with one or more sides exposed to cold
outdoor temperatures, are more likely to have venting
problems. The temperature of the flue products from a high
efficiency appliance may not be able to sufficiently heat the
masonry structure of the chimney to generate proper draft. This
will result in condensing of flue products, damage to the
masonry flue/tile, insufficient draft and possible spillage of
flue products into an occupied living space. Carefully inspect
all chimney systems before installation.
Inspection of a Masonry Chimney
A masonry chimney must be carefully inspected to determine
its suitability for the venting of flue products. A clay-tile-lined
chimney must be structurally sound, straight and free of
misaligned tile, gaps between liner sections, missing sections
of liner or any signs of condensate drainage at the breeching or
clean out. If there is any doubt about the condition of a
masonry chimney, it must be relined with a properly-sized and
approved chimney liner system. An unlined masonry chimney
must not be used to vent flue products from this high-
efficiency unit. An unlined chimney must be relined with an
approved chimney liner system when a new appliance is
being attached to it. Metallic liner systems (Type-B double-
wall or flexible or rigid metallic liners) are recommended.
Consult with local code officials to determine code
requirements or the advisability of using or relining a masonry
chimney.
Vertical Vent Termination Clearances
and Location
Follow all vertical venting termination information for
clearances and location
Clearances and Location, page 10.

2. Outdoor Installation Venting

IMPORTANT: Before installing a venting system,
follow all venting clearances and requirements
found in the Venting, General Information section,
page 10.
Units are self-venting and can be used outdoors when installed
with the optional outdoor caps. These caps mount directly to the
unit and cover the flue outlet and combustion air inlet openings.
No additional vent piping is required.
WARNING: Only install outdoor models
outdoors and only use the vent caps supplied by
the appliance manufacturer. Personal injury or
product damage may result if any other cap is
used or if an outdoor model is used indoors.
Properly install all covers, doors and jacket panels
to ensure proper operation and prevent a
hazardous condition.
Combustion air supply must be free of contaminants (see
Combustion and Ventilation Air, page 8). To prevent recirculation
of the flue products into the combustion air inlet, follow all
instructions in this section.
14
under Vertical Vent Termination