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Heating Air Conditioning
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GUD-X
Specification Sheet
High Efficiency
Gas Fired
Affix this Specification Sheet, Installation Instructions and
User Information manual adjacent to the unit.
Warm Air Furnace
Temp.
Blower
Pressure
Model Number Input
Output
Rise
Number
of
Burners
Minimum
Circuit
Ampacity1
Maximum
Overcurrent
Protection2
AC Tons @ Switch Setting Shipping
(Inches W.C.)3
(BTUH) (BTUH)
AFUE Range, °F
.5 ESP
Weight
(lbs)
D" x W" HP Speeds
GUD045X30B
GUD070X30B
GUD070X40B
GUD090X35B
GUD090X50B
45,000 43,000
70,000 65,700
70,000 65,700
90,000 84,300
90,000 85,100
95.6
93.8
93.8
93.7
94.6
93.6
25-55
35-65
35-65
45-75
35-65
35-65
2
3
3
4
4
5
11.3
10.3
14.1
10.1
15.1
15.1
15
15
15
15
20
20
10X8
10X8
1/3
1/3
3
4
4
4
4
4
2.0-3.0
2.0-3.0
3.0-4.0
2.0-3.5
3.5-5.0
3.5-5.0
-1.38
-1.38
-1.38
-1.57
-1.57
-1.38
158
194
194
216
216
231
10X10 3/4
10X8 1/2
10X10 3/4
10X10 3/4
GUD115X50B 115,000 107,600
1
2
3
Minimum Circuit Ampacity = (Circulating Blower Amps x 1.25) + I.D. Blower Amps
Maximum Overcurrent Protection refers to maximum recommended fuse or circuit breaker size.
As shipped for installations below 4,000 feet.
WARNING
To avoid death, personal injury or
property damage due to fire, do not
exceed maximum recommended
fuse or circuit breaker size.
Dimensions
Left Side View
Front View
28-1/8
28
A
B
3/4
3/4
20-1/8
3/4
Right Side View
2-3/8
6-5/8
Top View
Gas
Supply
Hole
Supply
Supply
4-3/4
Electrical
Hole-Low
Voltage
Combustion
Air Inlet
Gas Supply Hole
Electrical
Hole-Low
Voltage
1-5/8
Electrical Hole
Line Voltage
Flue Outlet
48
Electrical
Hole-Line
Voltage
38-3/4
4-1/4
Gas
Supply
Hole
1-3/4
2
5-7/8
6-5/8
40
4-3/8
38-1/4
23
38-3/4
1-1/8
2-1/2
28-3/4
Side KO
14
C
E
16-1/2
Condensate Drain
(Left or Right Side)
1-5/8
1-5/8
D
23
Bottom KO
Bottom KO
Size
45
70
90
115
A
B
C
7
11
D
E
Due to continuous engineering de-
sign and development, the above
informationissubjecttochangewith-
out notice.
16-1/2
20-1/2
24-1/2
24-1/2
15
19
23
23
10-1/2 2-5/8
14-1/2 2-5/8
10-1/2 18-1/2 4-5/8
12-1/2 18-1/2 2-5/8
All dimensions are in inches.
Amana
Fayetteville, TN 37334
January 1998
11134620
5. Drain connections must conform to local codes.
Accessibility Clearances (Minimum)
6. Installer must supply the following gas line fittings
according to which entrance is used:
WARNING
Top
Two 90° Elbows
One Close Nipple
One 90° Elbow
One 90° Elbow
One 45° Elbow
One Close Nipple
To avoid death, personal injury or property
damage due to fire, clearances to combus-
tible surfaces listed as below must be
observed.
Left
Right
36 inches front clearance is required for servicing or clean-
ing.
Flame Sensor
NOTE: In all cases, accessibility clearance must take
precedence over clearances from the enclosure where
accessibility clearances are greater.
Flame sensor output is 1 to 4 microamps at 115 volts.
Filters
CLEARANCES TO COMBUSTIBLE SURFACES
GUD_ MODEL FURNACES (Inches)
Side Return Filters
Minimum Recommended Size
FRONT
RIGHT
LEFT
3
1
1
0
TOP
1
0
FLUE
FLOOR
Size_Air Flow Disposable*
Permanent*
C
045_30
070_30
070_40
090_35
090_50
115_50
1 - 24x24 (576) 1 - 16x25 (280)
1 - 24x24 (576) 1 - 16x25 (280)
2 - 16x25 (768) 1 - 16x25 (372)
2 - 14x25 (692) 1 - 16x25 (342)
2 - 20x25 (960) 2 - 16x25 (465)
2 - 20x25 (960) 2 - 16x25 (465)
REAR
----
----
C = If placed on combustible floor, floor MUST be wood only.
High Altitude Installations
For installations above 4000 feet, please refer to your
Amana distributor for required kit(s).
Manifold
Pressure
3.5" W.C.
*
Quantity - Inches (Total Minimum Surface Area in Square Inches)
Permanent filter sizes are as shipped with furnace. The minimum
permanent filter size area is based on allowable face velocity of 620
feet per minute.
Gas
Altitude
Kit
Orifice
#43
Natural 0-4000 Ft. None
Propane 0-4500 Ft. LPTK09 #55 10.0" W.C.
Bottom Return Filter Sizes
Model Filter Size (Inches) Type
NOTE: In Canada, gas furnaces are certified to 4,500 feet
45
70
14 x 25 x 1
16 x 25 x 1*
20 x 25 x 1
20 x 25 x 1
P
P
P
P
only.
IMPORTANT NOTES:
1. All furnaces have a redundant gas valve and blower
90
115
door interlock switch.
P = Permanent
* As Shipped With Furnace
2. All furnaces are manufactured for use on 115 VAC, 60
Hz, single phase electrical supply.
3. IMPORTANT: While the data is presented as a guide,
it is very important to properly size fuses and wires and
make electrical connections in accordance with the
National Electrical Code and/or all existing local codes.
The figure below shows how the filter is retained over the
bottom return air opening.
Filter Retainer
4. Performance figures are based on Department of En-
ergy information and requirements under continuous
operatingconditions.Performancewillvarywithweather
conditions and use.
Filter
Furnace Bottom
Filter Retainer
3
WARNING
To prevent death, personal injury or property damage due to electrical shock, disconnect electrical power to this furnace
before servicing or performing maintenance.
THERMOSTAT
CONNECTIONS
Y
W
R
G
C
PRESSURE SWITCH (PS)
115V FIELD
CONNECT
ELECTRONIC
AIR CLEANER
6
PRIMARY
ROLLOUT
LIMIT (RL)
COM
CONTROL
TERMINAL ORDER REARRANGED FOR CLARITY
NC
AIR
CIRCULATION
BLOWER
(ACB)
#26 BK (HI)
NO
BR
BR
RD-44
RD-44
#23 BU (MED)
#29 OR (MED LOW)
#24 RD (LOW)
OR
-16
5
L
I
E
A
X X
F F
C
I
R
E H H
A U U
L
I
N
5
**
*
CAPACITOR
(CAP)
YL
-11
N
C C M M M M
**
*
E
R R
E
WH
C H P P
H
H
H N
H H
O E A A N I
G I
N R R
N H N
P
C
3
2
1
BK-6
BK-1
O
O E O E O E T T P L L M M O A R R E G F N N E 0
0
2
CONTROL
T
T U T U T U R H S I O V V L T K K U N P D D U 1
BR-21
GY-47
M
GAS
VALVE
(GV)
120 V
TRANS-
FORMER
VT-14
VT
-55
OR-16
LIMIT
BU-15
BU-25
24 V
RD
-22
GN
WH-33
L
I
M
I
T
F S
L E
A N
FLAME SENSOR
NO
BU-36
MS
C
PS
E O
R
NC
12
11
10
9
8
7
6
5
4
3
2
1
OR-3
RD-22
WH
COMBUSTION
BLOWER
(CB)
6
GV
BU
-36
BK-6
WH-
23
VT
-55
BK
CB
THERMOSTAT
CONNECTIONS
BK-1
IGNITOR
BK-3
115V FIELD
CONNECT
HUMIDIFIER
WH-2
CAP
ACB
GND
C
Y
W
R
G
C
DOOR SWITCH (CLOSED
WHEN DOOR IN PLACE)
LINE
TRANSFORMER
LOAD
NO
L1
DOOR
SWITCH
BR-21
GY-47
VT
-14
N
L1
WARNING:DISCONNECT POWER
BEFORE SERVICING.WIRING TO
UNIT MUST BE PROPERLY
115V
YL-11
GY
-25
BU-25
N
FIELD
WH
IGNITOR
GN
PRIMARY CONNECT
GND
WARNING:DISCONNECT POWER BEFORE
SERVICING.WIRING TO UNIT MUST BE
PROPERLY POLARIZED AND GROUNDED.
POLARIZED AND GROUNDED.
RD-44
RL
RD-44
GY-25
ELECTRICAL BOX
OR-3
FACTORY WIRED BLOWER MOTOR TO CONTROL CONNECTIONS
COLOR CODE
IMPORTANT:
READ BEFORE OPERATING OR SERVICING THIS UNIT.
YL YELLOW
OR ORANGE
VT VIOLET
GN GREEN
BK BLACK
BR BROWN
WH WHITE
BU BLUE
FURNACE MODEL
HEATING BLOWER SPEED
*
**COOLING
MOTOR
SPEEDS
BLOWER SPEED
* MANUFACTURER'S VARIABLE LETTER
SPEED
MOTOR TO "HEAT"
1. SET HEAT ANTICIPATOR ON ROOM THERMOSTAT AT 0.7 AMPS.
2. AMANA SPECIFIED REPLACEMENT PARTS MUST BE USED WHEN SERVICING.
3. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BE
REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING
OF AT LEAST 105C. USE COPPER CONDUCTORS ONLY.
4. UNUSED BLOWER MOTOR LEADS MUST BE PLACED ON "PARK" TERMINALS OF CONTROL OR TAPED.
GUX: 045X30*
GUC: 070X40*
GUC: 045X30*
GUD: 045X30*
LOW
LOW
RD-24
RD-24
3
4
SEE
INSTALLATION
INSTRUCTIONS
TO DETERMINE
PROPER
COOLING
BLOWER SPEED.
MED
MED LOW
MED
BU-23
OR-29
BU-23
3
4
4
GUX: 070X40*
GUC: 090X50*
GUD: 070X40*
5
IF HEATING AND COOLING BLOWER SPEEDS ARE NOT THE SAME DISCARD JUMPER BEFORE
CONNECTING BLOWER LEADS.
GY GRAY
RD RED
6
DIAGNOSTIC LIGHT:STEADY=REPLACE CONTROL;1 FLASH=LOCKOUT;2 FLASHES=PS STUCK CLOSED;
3 FLASHES=PS STUCK OPEN;4 FLASHES=OPEN HIGH LIMIT SWITCH;
5 FLASHES=OPEN ROLLOUT CONTROL;
GUX: 070X30*,090X50*
GUD: 090X35*,090X50*
LOW VOLTAGE
LOW VOLTAGE FIELD
HI VOLTAGE
HI VOLTAGE FIELD
GUX: 090X35*,115X50*
GUC: 070X30*,115X50*
090X35*
CONTINUOUS FLASHING=FLAME-NO CALL FOR HEAT
HI
BK-26
4
GUD: 070X30*,115X50*
11165501 REV. 0
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