Circulating Air And Filters - Amana GUX-X Installation Instructions Manual

Control Module
Hot 120 VAC
{
Optional
Accessories
Figure 21
Accessory Operation
The furnace control module energizes the humidifier when-
ever the induced draft blower is energized (if there is an
optional air cleaner on the system, the humidifier is not
energized until the air cleaner is energized). The control
module energizes the air cleaner whenever the air circula-
tion blower is energized.
LOW VOLTAGE WIRING
Low voltage wiring may enter through the right or left side
of the furnace. See Section II for hole locations. Run the
thermostat wires through either hole, up through a grom-
met in the blower deck, and to the ignition control module
(Figure 22).
CAUTION
To avoid possible equipment malfunction,
be careful to route the low voltage wires so
as not to interfere with filter removal or
other maintenance.
Low voltage wires may then be connected to the terminal
strip as shown below.
Figure 22
Typical Field Wiring
(24 VAC Control Circuit)
Adjust the heat anticipator in the room thermostat to obtain
the proper number of heating cycles per hour. The heat
anticipator is a wire-wound adjustable heater that prevents
the room temperature from "overshooting" the room ther-
mostat setting. The heat anticipator must be set at 0.7
Neutral
120 VAC
Air
Cleaner
Humidifier
amps. The heat anticipator is part of the thermostat and if
it should fail for any reason, the thermostat must be
replaced.
A 40\/ transformer and auxiliary fan relay are built into the
furnace so that is may be used with most cooling equip-
ment.
Consult the wiring diagram for both 115V and 24V wiring
details. The wiring diagram is located inside the blower
compartment door.
X. Circulating Air and Filters
DUCTWORK - AIR FLOW
Duct systems and register sizes must be properly de-
signed for the C.F.M. and external static pressure rating of
the furnace. Ductwork should be designed in accordance
with the recommended methods of "Air Conditioning Con-
tractors of America" Manual D.
A duct system must be installed in accordance with Stan-
dards of the National Board of Fire Underwriters for the
Installation of Air Conditioning, Warm Air Heating and
Ventilating Systems. Pamphlets No. 90A and 90B.
The filter is designed for high velocity heating and cooling
applications. Filters must be inspected, cleaned or changed
every two months or as required. It is the owner's respon-
sibility to keep air filters clean. Note: Dirty filters are the
most common cause of inadequate heating or cooling
performance.
Guide dimples locate the bottom or side cutouts. Use a
straight edge to scribe lines connecting the dimples. Cut
out the opening on these lines. For bottom return air
connection, the bottom of the cabinet has to be removed
before the furnace is positioned on the raised platform or
set on top of the return air duct.
A closed return duct system must be used, with the return
duct sealed to the furnace casing. Supply and return duct
connections to the unit may be made with flexible joints to
minimize noise transmission. If a central return is used, a
connecting duct must be installed between the unit and the
utility room wall so the furnace blower will not interfere with
combustion air or draft. The room, closet, or alcove must
not be used as a return air collecting chamber.
When the furnace is used in connection with a cooling unit,
the furnace should be installed in parallel with or on the
upstream side of the cooling unit to avoid condensation in
the heating element. With a parallel flow arrangement, the
dampers or other means used to control the flow of air must
be adequate to prevent chilled air from entering the fur-
nace and, if manually operated, must be equipped with
means to prevent operation of either unit unless the
damper is in the full heat or cool position.
When the furnace is installed without a cooling coil, it is
recommended that a removable access panel be pro-
vided in the outlet air duct. This opening shall be acces-
sible when the furnace is installed and shall be of such a
size that the heat exchanger can be viewed for visual light
inspection or such that a sampling probe can be inserted
into the air stream. The access panel must be made to
prevent air leaks when the furnace is in operation.
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