A
t
GUD-X
®
Heating ¡ Air Conditioning
higher standard of comfor
High Efficiency
Gas Fired
Affix this Specification Sheet, Installation Instructions and
Warm Air Furnace
Model Number Input
GUD045X30B 45,000 43,000 95.6 25-55 2 11.3 15 10X8 1/3 3 2.0-3.0 -1.38 158
GUD070X30B 70,000 65,700 93.8 35-65 3 10.3 15 10X8 1/3 4 2.0-3.0 -1.38 194
GUD070X40B 70,000 65,700 93.8 35-65 3 14.1 15 10X10 3/4 4 3.0-4.0 -1.38 194
GUD090X35B 90,000 84,300 93.7 45-75 4 10.1 15 10X8 1/2 4 2.0-3.5 -1.57 216
GUD090X50B 90,000 85,100 94.6 35-65 4 15.1 20 10X10 3/4 4 3.5-5.0 -1.57 216
GUD115X50B 115,000 107,600 93.6 35-65 5 15.1 20 10X10 3/4 4 3.5-5.0 -1.38 231
1
Minimum Circuit Ampacity = (Circulating Blower Amps x 1.25) + I.D. Blower Amps
2
Maximum Overcurrent Protection refers to maximum recommended fuse or circuit breaker size.
3
As shipped for installations below 4,000 feet.
(BTUH)
Output
(BTUH) AFUE
Temp. Blower Pressure
Rise
Range, °F
Number
Burners
of
Minimum
Circuit
Ampacity
Maximum
Overcurrent
1
Protection
Specification Sheet
User Information manual adjacent to the unit.
Shipping
3
D" x W" HP Speeds
2
AC To ns @
.5 ESP
WARNING
Switch Setting
(Inches W.C.)
Weight
(lbs)
To avoid death, personal injury or
Dimensions
property damage due to fire, do not
exceed maximum recommended
fuse or circuit breaker size.
Left Side View
48
Front View
A
B
3/4
38-3/4
16-1/2
4-3/4
6-5/8
38-1/4
Right Side View
Supply
Electrical
Hole-Low
Voltage
Gas
Supply
Hole
Gas Supply H ole
Electrical Hol e
Line Volta ge
1-3/4
2
1-1/8
Top View
Combustion
Air Inlet
4-1/4
E
Flue Outlet
4-3/8
2-1/2
C
3/4
14
20-1/8
Supply
Electrical
Hole-Low
Voltage
Electrical
Hole-Line
Voltage
28-1/8
28
Gas
Supply
Hole
1-5/8
5-7/8
6-5/8
23
Side KO
2-3/8
28-3/4
3/4
40
38-3/4
1-5/8
1-5/8
23
Bottom KO
Due to continuous engineering design and development, the above
information is subject to change without notice.
January 1998
Condensate Drain
(Left or Right Side)
D
Bottom KO
Size A B C D E
45 16-1/2 15 7 10-1/2 2-5/8
70 20-1/2 19 11 14-1/2 2-5/8
90 24-1/2 23 10-1/2 18-1/2 4-5/8
115 24-1/2 23 12-1/2 18-1/2 2-5/8
Amana
Fayetteville, TN 37334
All dimensions are in inches.
11134620
Model (Htg. Tons AC External Static Pressure, Inches Water Column
Speed As Motor at .5" 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Shipped) Speed ESP CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM
HIGH 3.0 1381 28 1319 29 1260 30 1197 32 1131 34 1055 960 847
GUD045X30B MED 2.5 1173 33 1142 34 1103 35 1055 36 998 38 931 848 736
(MED) LOW 2.0 908 42 901 43 884 43 855 45 815 47 760 688 602
HIGH 3.0 1458 41 1395 43 1334 45 1266 47 1188 50 1111 1015 895
GUD070X30B MED 2.5 1270 47 1229 49 1178 51 1122 53 1060 56 986 898 778
(HIGH) MED-LO 2.0 1019 59 1001 60 973 61 938 64 891 ----- 831 750 649
LOW 1.5 782 ----- 778 ----- 766 ----- 746 ----- 708 ----- 659 590 501
HIGH 4.0 1861 ----- 1803 ----- 1714 35 1647 37 1561 39 1457 1278 1063
GUD070X40B MED 3.5 1699 36 1643 37 1577 38 1512 40 1431 42 1312 1164 977
(MED-LOW) MED-LO 3.5 1519 40 1482 41 1439 42 1386 44 1316 46 1196 1063 903
LOW 3.0 1278 47 1277 47 1268 48 1227 49 1164 52 1069 937 839
HIGH 4.0 1664 47 1599 49 1532 51 1465 53 1395 56 1312 1234 1150
GUD090X35B MED 3.5 1465 53 1439 54 1395 56 1345 58 1288 60 1218 1145 1048
(MED) MED-LO 3.0 1089 71 1108 70 1106 70 1092 71 1059 73 1021 961 883
LOW 2.5 850 ----- 845 ----- 841 ----- 834 ----- 823 ----- 801 759 688
HIGH 5.0 2271 ----- 2184 36 2094 37 2000 39 1914 41 1810 1701 1552
GUD090X50B MED 4.5 1951 40 1889 41 1837 42 1770 44 1701 46 1598 1489 1353
(MED) MED-LO 4.0 1724 45 1695 46 1647 47 1598 49 1534 51 1412 1362 1236
LOW 3.5 1495 52 1474 53 1448 54 1407 55 1356 57 1289 1196 1036
HIGH 5.0 2358 42 2228 44 2094 47 1997 49 1896 52 1800 1680 1552
GUD115X50B MED 4.5 1922 52 1869 52 1810 55 1743 57 1688 59 1583 1488 1364
(HIGH) MED-LO 4.0 1699 58 1672 59 1630 61 1583 63 1526 65 1454 1369 1248
LOW 3.5 1475 ----- 1462 ----- 1441 ----- 1414 ----- 1369 ----- 1317 1232 1067
NOTES:
• CFM information in the above table is with high velocity, permanent filter(s) as shipped with the furnace. If the furnace is shipped with two
side return filters, this table assumes both filters are used.
• All furnaces ship as high speed for cooling. Installer must adjust blower speed as needed.
• For most jobs, about 400 CFM per ton when cooling is desirable.
• This chart is for furnaces installed at 0 - 4000 feet. At higher altitudes, a properly derated unit will have the same temperature rise at a particular
CFM, while the ESP at that CFM will be lower.
• The shaded area ( )indicates ranges in excess of maximum external static pressure allowable when heating. For satisfactory operation,
external static pressure should not exceed 0.5” W.C. The data for 0.6” W.C. to 0.8” W.C. is shown for air conditioning purposes only.
• The dashed (-----) areas indicate a temperature rise not recommended for this model.
• The installation must be adjusted to obtain a temperature rise within the range listed on the furnace nameplate.
2
Accessibility Clearances (Minimum)
WARNING
To avoid death, personal injury or property
damage due to fire, clearances to combustible surfaces listed as below must be
observed.
36 inches front clearance is required for servicing or cleaning.
NOTE: In all cases, accessibility clearance must take
precedence over clearances from the enclosure where
accessibility clearances are greater.
CLEARANCES TO COMBUSTIBLE SURFACES
GUD_ MODEL FURNACES (Inches)
FRONT 3 TOP 1
RIGHT 1 FLUE 0
LEFT 1 FLOOR C
REAR 0 ---- ----
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).
Gas Al titude Ki t Orifice
Natural 0-4000 Ft. None #43 3.5" W.C.
Propane 0-4500 Ft. LPTK09 #55 10.0" W.C.
NOTE: In Canada, gas furnaces are certified to 4,500 feet
only.
IMPORTANT NOTES:
1. All furnaces have a redundant gas valve and blower
door interlock switch.
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.
4. Performance figures are based on Department of Energy information and requirements under continuous
operating conditions. Performance will vary with weather
conditions and use.
Manif old
Pressure
5. Drain connections must conform to local codes.
6. Installer must supply the following gas line fittings
according to which entrance is used:
Top Two 90° Elbows
One Close Nippl e
Left
Right
One 90° Elbow
One 90° Elbow
One 45° Elbow
One Close Nippl e
Flame Sensor
Flame sensor output is 1 to 4 microamps at 115 volts.
Filters
Side Return Filters
Minimum Recommended Size
Size_Air Flow Disposable* Permanent*
045_30 1 - 24x24 (576) 1 - 16x25 (280)
070_30 1 - 24x24 (576) 1 - 16x25 (280)
070_40 2 - 16x25 (768) 1 - 16x25 (372)
090_35 2 - 14x25 (692) 1 - 16x25 (342)
090_50 2 - 20x25 (960) 2 - 16x25 (465)
115_50 2 - 20x25 (960) 2 - 16x25 (465)
* 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.
Bottom Return Filter Sizes
Model Filter Size (Inches) Type
45 14 x 25 x 1 P
70 16 x 25 x 1* P
90 20 x 25 x 1 P
115 20 x 25 x 1 P
P = Permanent
* As Shipped With Furnace
The figure below shows how the filter is retained over the
bottom return air opening.
Filter Retainer
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
Y
CONNECTIONS
W
R
G
C
TERMINAL ORDER REARRANGED FOR CLARITY
L
E
E
H
H
I
A
A
U
U
N
C
C
M
M
E
H
H
N
H
N
O
O
E
O
E
T
T
U
T
U
120 V
TRANS-
FORMER
24 V
4
PS
CONTROL
X
X
F
F
M
M
R
R
H
N
H
O
E
T
P
L
T
T
U
H
S
I
R
NO
C
NC
5
**
*
C
H
P
H
O
E
A
L
M
M
O
A
R
O
V
V
L
T
K
L
I
M
I
T
GV
CAP ACB
C
NO
L1
DOOR
SWITCH
GND
6
C
P
A
R
K
L
I
I
N
R
E
I
N
I
G
N
N
E
E
G
F
N
D
U
U
N
P
D
S
F
E
L
N
A
S
M
O
E
R
CB
N
IGNITOR
WARNING:DISCONNECT POWER BEF ORE
SERVICING.WIRING TO UNIT MUST BE
PROPERLY POLARIZED AND GROUNDED.
PRIMARY
FACTORY WIRED BLOWER MOTOR TO CONTROL CONNECTIONS
HEATING BLOWER SPEEDFURNACE MODEL
* MANUFACTURER'S VARIABLE LETTER
GUX: 045X30*
GUC: 070X40* 4LOW RD-24
GUC: 045X30*
GUD: 045X30*
GUX: 070X40*
GUC: 090X50*
GUD: 070X40*
GUX: 070X30*,090X50*
GUD: 090X35*,090X50*
GUX: 090X35*,115X50*
GUC: 070X30*,115X50*
090X35*
GUD: 070X30*,115X50*
*
SPEED
LOW
MED 3BU-23
MED LOW 4OR-29
HI BK-26 4
R
R
0
0
2
1
FLAME S ENSOR
115V
FIELD
CONNECT
RL
MOTOR TO "HEAT"
3
P
2
C
1
M
GAS
VALVE
(GV)
COMBUSTION
BLOWER
(CB)
VT-14
BK
L1
N
GND
ELECTRI CAL BOX
RD-24
BU-23MED 4
PRIMARY
ROLLOU T
LIMIT (RL)
BR-21
GY-47
WH
VT
-55
MOTOR
SPEEDS
3
RD-44
RD-44
LIMIT
WH
**
COOLING
BLOWER SPEED
SEE
INSTALLATION
INSTRUCTIONS
TO DETERMINE
PROPER
COOLING
BLOWER SPEED.
LOW VOLTAGE FIELD
HI VOLTAGE FIELD
PRESSURE SWITCH (PS)
COM
NC
NO
OR
-16
BU-15
GN
YL
-11
CAPACITOR
(CAP)
WH-33
BU-36
RD-22
WH-
23
IGNITOR
BK-6
BK-3
DOOR SWITCH (CLOSED
WHEN D OOR IN PLACE )
WARNING:DISCONNECT POWER
BEFORE SERVICING.W IRING TO
UNIT MU ST BE PROPERLY
POLARIZED AND GROUNDED.
COLOR CODE
YL YELLOW
OR ORANGE
VT VIOLE T
GN GREE N
BK BLACK
BR BROWN
WH WHITE
BU BLUE
GY GRAY
RD RED
LOW VOLTAGE
HI VOLTAGE
115V FIE LD
CONNECT
ELECTRONIC
AIR CLEANER
VT
-55
RD
-22
5
BK-6
BK-1
**
*
L
T
K
K
E
R
E
R
OR-16
AIR
BR
CIRCULATION
BLOWER
BR
(ACB)
#26 BK (HI)
#23 BU (MED)
#29 OR (MED LOW)
#24 RD (LOW)
WH
BU-25
6
GY-47
THERMOSTAT
CONNECTIONS
WY
BR-21
BK-1
WH-2
LINE
TRANSFORMER
LOAD
115V FIE LD
CONNECT
HUMIDIFIER
BU-25
GY-25
OR-3
IMPORTANT:
READ BEFORE OPERATING OR SERVICING THIS UNIT.
1. SET HEAT ANTICIPAT OR ON ROOM THERMOSTAT AT 0.7 AMPS.
2. AMANA SPECIFIED RE PLACEMENT PARTS MUST BE USED WHEN SERVICING.
3. IF ANY OF THE ORIGIN AL WIRE AS S UP PLIED WITH THE FURNACE MUST BE
REPLACED, IT MUST BE REPLACED WI T H WIRING MAT ERIAL HAVING A TEMPERATURE RATI NG
OF AT LEAST 105C. USE COPPER CONDU CTORS ON LY.
4. UNUSE D BLOWER MOTOR LEADS MUST BE PLACE D ON "PARK" TERMINALS OF CONTROL OR TAPED.
5 IF HEATING AND COOLING BLOWER SPEEDS ARE NOT THE SA ME DISCARD JU M PER BEFORE
CONNECTING BLOWER LEADS.
6 DIAGNOSTIC LIGHT:STEADY=REPLACE CONTR OL;1 FLASH=LOCKOUT;2 FLASHES=PS ST UCK CLOSED;
3 FLASHES=PS STUCK OPEN;4 FLASHE S=OPEN HIGH LIMIT SWI TCH;
5 FLASHES=O PEN ROLLOUT CO NTROL ;
CONTINUOUS FLASHING=FLAME-NO CALL FOR HEAT
CIRCU LATOR BLO WER
COO
HEA
PAR
PAR
LIN
XFM
EAC
HUM
IND
IGN
CIR
LIN
XFM
EAC
HUM
R G C
HOT 120 VAC
NEUTRAL 120VAC
YL-11
CONTROL
MV GND HLI
RO1TR
PSRO2MV
12
11 8 5 2
GY
GN
-25
RD-44
11165501 REV . 0
TH FP HLO
369
OR-3
BU
-36
14710
VT
-14
RD-44
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