Gas Supply And Piping; Volt Thermostat Wiring; 115 Volt Line Connection Of Accessories (Humidifier And Electronic Air Cleaner ); General - Amana GUI Installation Instructions Manual

1. Measure resistance between the neutral (white) connection
and one of the burners.
2. Resistance should measure 10 ohms or less.
This furnace is equipped with a blower door interlock switch which
interrupts unit voltage when the blower door is opened for servic-
ing. Do not defeat this switch.
24 V T W
OLT HERMOSTAT
NOTE: Wire routing must not interfere with circulator blower
operation, filter removal, or routine maintenance.
Low voltage connections can be made through either the right or
left side panel. Thermostat wiring entrance holes are located in the
blower compartment. The following figure shows connections for a
"heat only" system and "heat/cool system".
Heating
Room
Thermostat
W1
R
Y
R
C
G
W1
Furnace Control
Figure 11 - Typical Field Wiring
(24 VAC Control Circuit)
This furnace is equipped with a 40 VA transformer to facilitate use
with most cooling equipment. Consult the wiring diagram, located
on the blower compartment door, for further details of 115 Volt and
24 Volt wiring.
115 V L C
OLT INE ONNECTION OF
E A C
AND LECTRONIC IR LEANER
T
O AVOID PERSONAL INJURY, ELECTRICAL SHOCK OR DEATH, DISCONNECT
ELECTRICAL POWER BEFORE SERVICING OR CHANGING ANY ELECTRICAL
WIRING.
The furnace integrated control module is equipped with line voltage
accessory terminals for controlling power to an optional field-sup-
plied humidifier and/or electronic air cleaner.
The accessory load specifications are as follows:
Humidifier
Electronic Air Cleaner
Turn OFF power to the furnace before installing any accessories.
Follow the humidifier or air cleaner manufacturers' instructions for
locating, mounting, grounding, and controlling these accessories.
Accessory wiring connections are to be made through the 1/4" quick
connect terminals provided on the furnace integrated control mod-
ule. The humidifier and electronic air cleaner hot and neutral termi-
nals are identified as HUM and EAC. All field wiring must conform
to applicable codes. Connections should be made as shown in the
following illustration.
IRING
Heating/Cooling
Room
Thermostat
Y
W1
R
G
C
Y Y
R
C C
G
Remote
W1
Condensing
Unit
Furnace Control
A (H
CCESSORIES UMIDIFIER
)
WARNING
1.0 Amp maximum at 120 VAC
1.0 Amp maximum at 120 VAC
ACCESSORIES
120 VAC
HOT AND
PARK
TERMINALS
12 PIN
CONNECTOR
Figure 12 - Accessories Wiring
If it is necessary for the installer to supply additional line voltage
wiring to the inside of the furnace, the wiring must conform to all
local codes, and have a minimum temperature rating of 105°C. All
line voltage wire splices must be made inside the furnace junction
box.
The integrated control module humidifier terminals (HUM) are en-
ergized with 115 volts whenever the induced draft blower is ener-
gized. The integrated control module electronic air cleaner termi-
nals (EAC) are energized with 115 volts whenever the circulator
blower is energized.
IX. GAS SUPPL IX. GA IX. GA IX. GA IX. GA S SUPPLY AND PIPIN S SUPPL S SUPPL S SUPPL
G
ENERAL
The furnace rating plate includes the approved furnace gas input
rating and gas types. The furnace must be equipped to operate on
the type of gas applied. This includes any conversion kits required
for alternate fuels and/or high altitude.
T
O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE INLET
GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE
WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANCES OPERATING.
Inlet gas supply pressures must be maintained within the ranges
specified in the following table. The supply pressure must be con-
stant and available with all other household gas fired appliances
operating. The minimum gas supply pressure must be maintained
to prevent unreliable ignition. The maximum must not be exceeded
to prevent unit overfiring.
Inlet Gas Supply Pressure
Natural Gas Minimum: 5.0" w.c.
Propane Gas Minimum: 11.0" w.c.
NOTE: Adjusting the minimum supply pressure below the limits in
the above table could lead to unreliable ignition.
Gas input to the burners must not exceed the rated input shown on
the rating plate. Overfiring of the furnace can result in premature
heat exchanger failure. Gas pressures in excess of 13 inches wa-
ter column can also cause permanent damage to the gas valve.
IMPORTANT NOTE: The furnace will naturally derate itself with
altitude. Do not attempt to increase the firing rate by changing ori-
fices or increasing the manifold pressure. This can cause poor com-
bustion and equipment failure.
At all altitudes, the manifold pressure must be within 0.3 inches
WC of that listed on the "Product Data bulletin" for the fuel used. At
all altitudes and with either fuel, the air temperature rise must be
within the range listed on the furnace nameplate.
17
OPTIONAL
ELECTRONIC
AIR CLEANER
HUMIDIFIER
HUM-N
EAC-N
INTEGRATED
120 VAC
NEUTRAL CONTROL
TERMINALS
MODULE
Y AND PIPING G G G G Y AND PIPIN Y AND PIPIN Y AND PIPIN
CAUTION
Maximum:10.0" w.c.
Maximum:13.0" w.c.