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SAFETY INFORMATION
Safety markings are used frequently throughout this
manual to designate a degree or level of seriousness and
should not be ignored. WARNING indicates a potentially
hazardous situation that if not avoided, could result in
personal injury or death. CAUTION indicates a potentially
hazardous situation that if not avoided, may result in minor
or moderate injury or property damage.
The safety information listed below must be
followed during the installation, service, and
operation of this furnace. Failure to follow safety
recommendations could result in possible
damage to the equipment, serious per sonal
injury or death .
• Use only with type of gas approved for this furnace.
Refer to the furnace rating plate.
• Install this furnace only in a location and position as
specifi ed in Table 1 (page 7).
• Provide adequate combustion and ventilation air to the
furnace space as specifi ed on pages 8 - 10.
• Provide adequate clearances around the vent air intake
terminal as specifi ed in Figures 6 - 9 (pages 12 - 13).
• Combustion products must be discharged outdoors.
Connect this furnace to an approved vent system only,
as specifi ed on pages 10 - 14.
• Never test for gas leaks with an open fl ame. Use a
commercially available soap solution to check all
connections. See page 20.
• This furnace is designed to operate with a maximum
external pressure rise of 0.5 inches of water column.
Consult Tables 8 - 10 (pages 35 - 37), and the rating
plate for the proper circulating air fl ow and temperature
rise. It is important that the duct system be designed
to provide the correct fl ow rates and external pressure
rise. An improperly designed duct system can result in
nuisance shutdowns, and comfort or noise issues.
• When supply ducts carry air circulated by the furnace
to areas outside the space containing the furnace, the
return air shall also be handled by duct(s) sealed to
the furnace casing and terminating in the conditioned
space. See page 14.
• A gas-fi red furnace for installation in a residential garage
must be installed as specifi ed on page 6.
• This furnace may be used for temporary heating of
buildings or structures under construction. See the
guidelines listed on pages 5 - 6.
4
WARNING:
REQUIREMENTS and CODES
This furnace must be installed in accordance with
these instructions, all applicable local building codes
and the current revision of the National Fuel Gas Code
(NFPA54/ANSI Z223.1) or the Natural Gas and Propane
Installation Code, CAN/CGA B149.1.
The Commonwealth of Massachusetts requires
compliance with regulation 248 CMR 4.00 and 5.00 for
installation of through – the – wall vented gas appliances
as follows:
1. For direct-vent appliances, mechanical-vent heating
appliances or domestic hot water equipment, where
the bottom of the vent terminal and the air intake is
installed below four feet above grade the following
requirements must be satisfi ed:
a.) A carbon monoxide (CO) detector and alarm shall
be placed on each fl oor level where there are
bedrooms. The detector shall comply with NFPA
720 (2005 Edition) and be mounted in the living
area outside the bedroom(s).
b.) A (CO) detector shall be located in the room that
houses the appliance or equipment and shall:
• Be powered by the same electrical circuit as
the appliance or equipment. Only one service
switch shall power the appliance and the (CO)
detector;
• Have battery back-up power;
• Meet ANSI/UL 2034 Standards and comply with
NFPA 720 (2005 Edition); and Approved and listed
by a Nationally Recognized Testing Laboratory
as recognized under 527 CMR.
c.) A Product-approved vent terminal must be used,
and if applicable, a product-approved air intake must
be used. Installation shall be in strict compliance
with the manufacturer's instructions. A copy of
the installation instructions shall remain with the
appliance or equipment at the completion of the
installation.
d.) A metal or plastic identifi cation plate shall be
mounted at the exterior of the building, four feet
directly above the location of vent terminal. The
plate shall be of suffi cient size, easily read from
a distance of eight feet away, and read "Gas Vent
Directly Below".
2. For direct-vent appliances, mechanical-vent heating
appliances or domestic hot water equipment where
the bottom of the vent terminal and the air intake is
installed above four feet above grade the following
requirements must be satisfi ed:
a.) A (CO) detector and alarm shall be placed on
each fl oor level where there are bedrooms. The
detector shall comply with NFPA 720 (2005 Edition)
and be mounted in the living area outside the
bedroom(s).
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