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Gas Furnace
The A97DSMV Category IV gas furnace is equipped with a
variable capacity, variable speed integrated control. Each
A97DSMV is shipped ready for installation in the downflow
position.
The furnace is equipped for installation in natural gas
applications only. A change over kit must be ordered for
LP/propane applications.
The A97DSMV must be installed only as a Direct Vent
gas central furnace
NOTE: In Direct Vent installations, combustion air is taken
from outdoors and flue gases are discharged outdoors.
See Figure 2 for applications including roof termination.
Figure 2.
Shipping and Packing List
1 - Assembled A97DSMV unit.
1 - Bag assembly containing the following:
1 - Snap bushing
1 - Snap Plug
1 - Wire tie
1 - Condensate trap
1 - 3/4" Threaded PVC street elbow
2 - 2" Street elbows
2 - Side vent sealing plates
2 - Side vent sealing gaskets
6 - Sheet metal screws
Check equipment for shipping damage. If you find any
damage, immediately contact the last carrier.
The following items may also be ordered separately:
1 - Thermostat
1 - Natural to LP gas conversion kit
1 - High altitude kit
Page 4 of 73
Safety Information
DANGER OF EXPLOSION!
There are circumstances in which odorant used with
LP/Propane gas can lose its scent. In case of a leak,
LP/Propane gas will settle close to the floor and may be
difficult to smell. An LP/Propane leak detector should be
installed in all LP applications.
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional installer (or
equivalent), service agency or the gas supplier.
As with any mechanical equipment, personal injury can
result from contact with sharp sheet metal edges. Be
careful when you handle this equipment.
Use only the type of gas approved for use with this furnace.
Refer to unit nameplate.
Building Codes
In the USA, installation of gas furnaces must conform 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/NFPA 54). The National Fuel Gas
Code is available from the American National Standards
Institute, Inc., 11 West 42nd Street, New York, NY 10036.
Installed Locations
In Canada, installation must conform with current National
Standard of Canada CSA-B149 Natural Gas and Propane
Installation Codes, local plumbing or waste water codes
and other applicable local codes.
The furnace is designed for installation clearances to
combustible material as listed on the unit nameplate and
in the table in Figure 7. Installers should also consider the
greater of either accessibility/service clearances or fire
protection clearances.
NOTE: For installation on combustible floors, the furnace
shall not be installed directly on carpeting, tile, or other
combustible material other than wood flooring. A downflow
combustible flooring base must be installed. See Table 2
for kit information.
Issue 2241
DANGER
WARNING
CAUTION
507029-05
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