Requirements - Lennox G21Q Series Installation Instructions Manual

REQUIREMENTS

The G21Q unit is designed as a North American unit. It is
certified for use in both the United States and Canada.
Refer to the requirements section below for specific in-
formation concerning installation in the two countries.
Installation of Lennox gas central furnaces must con-
form with local building codes. In the absence of local
codes, units must be installed according to the current
National Fuel Gas Code (ANSI- -Z223.1). The National
Fuel Gas Code is available from the following address:
American National Standards Institute, Inc.
11 West 42nd Street
New York, NY 10036
The installation of Lennox high efficiency gas furnaces
must conform with the current “Installation Code for
Gas Burning Appliances and Equipment”CAN/CGA- -
B149.1 - - (natural gas) or CAN/CGA- -B149.2 - - (propane
gas) and/or local codes. For unspecified requirements
the installation must conform with the manufacturer’s
C.G.A. certified instructions contained herein.
All G21 units are A.G.A. (American Gas Association)
and C.G.A (Canadian Gas Association) certified.
The electrical installation must conform with the Cana-
dian Electrical Code Part 1, C.S.A. C22.1, and/or local
codes.
The plumbing installation must comply with local
plumbing or waste water codes where applicable.
This furnace is certified for installation clearances to
combustible material as listed on the unit rating plate
and in table 1 for installation in an alcove or closet.
TABLE 1
Clearances Location
Service access
Exhaust side
To combustible
materials
Side, rear and front
*Appliance shall not be installed directly on carpeting, tile or other
combustible material other than wood flooring.
N
OTE- -Service access clearance must be maintained.
Accessibility and service clearances must take prece-
dence over fire protection clearances.
For installation in a residential garage, the furnace
must be located or protected to avoid physical damage
by vehicles. The furnace must be adjusted to obtain a
temperature rise and external static pressure within
the range specified on the unit rating plate.
The G21Q furnace must be installed so that electrical
components are protected from water.
Inches (mm)
Front 36 (914)
6 (152)
(from side of unit)
Top 1 (25)
Exhaust 0
0
Floor
0*
When the furnace is used with cooling units, it shall be
installed in parallel with, or on the upstream side of,
cooling units to avoid condensation in the heating ele-
ment. With a parallel flow arrangement, a damper (or
other means to control the flow of air) must adequately
prevent chilled air from entering the furnace. If the
damper is manually operated, it must be equipped to
prevent operation of either the heating or cooling unit
unless it is in the full “heat” or “cool” setting.
When installed,
grounded according to the current National Electric
Code, ANSI/NFPA No. 70 in the U.S. and current CSA
C22.1 Canadian Electrical Code Part 1 in Canada, if an
external electrical source is utilized. The National Elec-
tric Code is available from the following address:
National Fire Protection Association
1 Battery March Park
Quincy, MA 02269
Field wiring between the furnace and devices not at-
tached to the furnace, or between separate devices
which are field- -installed and located, shall conform
with the temperature limitation for type T wire [63
-
(17 C) rise] when installed in accordance with these in-
structions.
When the furnace is installed so that supply ducts carry
air circulated by the furnace to areas outside the space
containing the furnace, return air shall be handled by a
duct(s) sealed to the furnace casing and terminating
outside the space containing the furnace.
Product contains fiberglass wool.
Disturbing the insulation in this product during in-
stallation, maintenance, or repair will expose you
to fiberglass wool. Breathing this may cause lung
cancer. (Fiberglass wool is known to the State of
California to cause cancer.)
Fiberglass wool may also cause respiratory, skin,
and eye irritation.
To reduce exposure to this substance or for further
information, consult material safety data sheets
available from address shown below, or contact
your supervisor.
Lennox Industries Inc.
P .O. Box 799900
Dallas, TX 75379- -9900
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