# 47904K005
Page 3
INSTALLATION
These instructions must be placed on or near the
furnace in a conspicuous place.
The furnace design is certified by CSA International as a
Category IV furnace in compliance with the latest edition
of American National Standard Z21.47/CSA Standard 2.3
for Gas-Fired Central Furnaces, for operation with natural
gas or propane. Consult the rating plate on the furnace for
gas type before installing.
The maximum hourly heat loss of space shall be calcu-
lated in accordance with the procedure described in the
current manuals of Air Conditioning Contractors of
America, or by any other recognized method which is
suitable for local conditions, provided the results obtained
are in substantial agreement with, and not less than, those
obtained using the procedure described in the manuals.
G2D93CT and G2D95CT furnaces may be installed as
upflow
or
horizontal furnaces
. When installed horizontally,
the installer must install a sheet metal screw to retain the
upper door as shown in Figure 1.
G2D93CU and G2D95CU furnaces must be installed only
as upflow furnaces.
Never install any furnace on its back.
Inspection of Shipment
This furnace is shipped in one package, completely
assembled and wired.
The thermostat is shipped in a
separate carton when ordered.
Upon receipt of equipment, carefully inspect it for possible
shipping damage. If damage is found, it should be noted
on the carrier’s freight bill. Damage claims should be filed
with the carrier immediately. Claims of shortages should
be filed with the seller within 5 days.
Location
To provide proper operation and satisfactory performance,
care must be taken in choosing the location for this furnace.
The atmosphere in which the furnace operates must be free
of contaminants such as chlorides and sulfates.
The furnace must be installed so that electrical compo-
nents are protected from water.
Unit must be level for
proper condensate drainage.
All models are suitable for closet or utility room installation.
The furnace is suitable for installation in buildings
constructed on-site. The furnace should be centralized in
respect to the heat distribution system as much as
practicable. When installed in a utility room, the door
should be wide enough to allow the largest part of the
furnace to enter, or permit the replacement of another
appliance, such as a water heater.
A gas-fired furnace for installation in a residential garage must
be installed so the burner(s) and the ignition source are
located not less than 18" above the floor. The furnace is to be
located or protected to avoid physical damage by vehicles.
This furnace is not recommended to be used as a construc-
tion heater during any phase of construction. Very low return
air temperatures, harmful vapors, and operation of the unit
with clogged or misplaced filters will damage the unit.
The furnace may be used for heating of buildings or
structures under construction, if the following conditions
are met:
•
The vent system must be permanently installed per
these installation instructions.
•
A room thermostat must control the furnace. The use
of fixed jumpers that will provide continuous heating is
not allowed.
•
The return air duct must be provided and sealed to
the furnace.
•
Return air temperature range between 60°F and 80°F
must be maintained.
The condensate system must not be ex-
posed to temperatures under 32°F.
The
condensate system must be insulated if ex-
posed to temperatures under 32°F. Use of heat
tape is permissible provided the rate tempera-
ture of the tape
does not exceed 155°F.
CAUTION
Horizontal Installations
Figure 1