Manual 2100-590A
Page
10 of 67
1.
IMPORTANT
The equipment covered in this manual is to be installed by
trained, experienced service and installation technicians.
All duct work or portions thereof not in the conditioned
space should be properly insulated in order to both conserve
energy and prevent condensation or moisture damage.
2. APPLICATION
This is a fan-assisted forced air gas furnace with electric
air conditioning for outdoor installation. A fan-assisted
furnace is equipped with an integral mechanical means
to draw products of combustion through the combustion
chamber and heat exchanger. The furnace installation
must conform with local building codes and ordinances
or, in their absence, with the National Fuel Gas Code
ANSI Z223.1 or CAN/CGA-B149.1, latest edition, and
the National Electrical Code ANSI/NFPA-7 or CSA
C22.1, latest edition. It is the personal responsibility
and obligation of the purchaser to contact a qualified
installer to assure that installation is adequate and is in
conformance with governing codes and ordinances.
3.
DUCT WORK
The unit is designed for use with or without duct work.
See Warning on Page 10. Flanges are provided for
attaching the supply and return ducts. These
instructions explain the recommended method to install
the air cooled self-contained electric air conditioning
and gas heating unit and the electrical wiring
connections and gas piping to the unit. The refrigerant
system is completely assembled and charged. All
internal wiring is complete.
These instructions and any instructions packaged with any
separate equipment required to make up the entire heating/
cooling system should be carefully read before beginning
the installation. Note particularly “Starting Procedure”
and any tags and/or labels attached to the equipment.
All duct work, supply and return, must be properly sized
for the design airflow requirement of the equipment.
Air Conditioning Contractors of America (ACCA) is an
excellent guide to proper sizing.
Refer to Tables 10, 11, 12, 13, 14 and 15 in this Manual
for maximum static pressure available for duct design.
See Figure 3 and clearance information in Section 9 and
Table 2 for additional information.
Design the duct work according to methods given by the
Air Conditioning Contractors of America (ACCA).
When duct runs through unheated spaces, it should be
insulated with a minimum of one-inch of insulation.
Use insulation with a vapor barrier on the outside of the
insulation. Flexible joints should be used to connect the
duct work to the equipment in order to keep the noise
transmission to a minimum.
A one-inch clearance to combustible material for the
first three feet of duct attached to the outlet air frame is
required. See Wall Mounting Instructions and Figures
2, 2A, 3 and 3A for further details.
Ducts through the walls must be insulated and all joints taped
or sealed to prevent air or moisture entering the wall cavity.
Some installations may not require any return air duct.
A metallic return air grille is required with installations
not requiring a return air duct. The spacing between
louvers on the grille shall not be larger than 5/8 inch.
Any grille that meets with the 5/8 inch louver criteria may
be used. It is recommended that Bard Return Air Grille or
Return Filter Grille be installed when no return duct is used.
Contact distributor or factory for ordering information. If
using a return air filter grille, filters must be of sufficient
size to allow a maximum velocity of 400 fpm.
NOTE: If no return air duct is used, applicable
installation codes may limit this cabinet to
installation only in a single story structure.
WARNING
In all cases, there must be a metal duct
connection made to the supply air flange, and a
one inch clearance to combustibles must be
maintained to this duct connection.
For free blow applications, a metal sleeve must
be used in the wall opening itself, again
maintaining a one inch clearance to combustibles.
Failure to use the sheet metal can cause fire
resulting in property damage, injury, or death.
CAUTION
During the initial firing of the burners there will probably be some amount of smoke issued to the
circulating air stream as the result of residual oil burning off of the heat exchanger tubes. This oil
is required during the forming process of the stainless steel heat exchanger tubes to facilitate the
bending. OSHA or the National Toxicology Program does not list the oil as a carcinogen. In vapor
form this may be irritating to the eyes or could cause headaches. This is a one-time occurrence,
and ventilation of the space may be required depending upon the space being conditioned.
Summary of Contents for W24G2-A
Page 13: ...Manual 2100 590A Page 13 of 67 FIGURE 2A MOUNTING INSTRUCTIONS FOR W42G W48G AND W60G ...
Page 16: ...Manual 2100 590A Page 16 of 67 FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS ...
Page 25: ...Manual 2100 590A Page 25 of 67 FIGURE 14 GAS PIPE CONNECTION W24G W36G W42G W60G ...
Page 51: ...Manual 2100 590A Page 51 of 67 W24G2 A 230 208 60 1 ...
Page 53: ...Manual 2100 590A Page 53 of 67 W24G2 B 230 208 60 3 ...
Page 55: ...Manual 2100 590A Page 55 of 67 W24G2 C 460 60 3 ...
Page 57: ...Manual 2100 590A Page 57 of 67 W30G2 A W36G2 A W42G2 A W48G2 A 230 208 60 1 ...
Page 59: ...Manual 2100 590A Page 59 of 67 W30G2 B W36G2 B W42G2 B W48G2 B 230 208 60 3 ...
Page 61: ...Manual 2100 590A Page 61 of 67 W30G2 C W36G2 C W42G2 C W48G2 C 460 60 3 ...
Page 63: ...Manual 2100 590A Page 63 of 67 W60G2 A 230 208 60 1 ...
Page 65: ...Manual 2100 590A Page 65 of 67 W60G2 B 230 208 60 3 ...
Page 67: ...Manual 2100 590A Page 67 of 67 W60G2 C 460 60 3 ...