
May 1998 (3)
11134619
GUCA
High Efficiency
Gas Fired Warm Air Furnace
Due to continuous engineering
design and development, the
information in this spec sheet is
subject to change without notice.
All dimensions are in inches.
Affix this Specification Sheet, Installation Instructions
and User Information manual adjacent to the unit.
Specification Sheet
Dimensions (Inches)
WARNING
To avoid death, personal injury or
property damage due to fire, do not
exceed maximum recommended
fuse or circuit breaker size.
higher standard of comfor
Heating
¡
Air Conditioning
®
Cabinet
Size
Units A B C D
045__30
070__30
070__40
090__40
090__50
115__50
12-5/8
14-5/8
18-5/8
12-3/8
16-3/8
20-3/8
15
19
23
16-1/2
20-1/2
24-1/2
Small
Medium
Large
AIR
DISCHARGE
AIR
DISCHARGE
ALTERNATE
GAS SUPPLY
HOLE
LOW VOLTAGE
ELECTRICAL HOLE
HIGH VOLTAGE
ELECTRICAL HOLE
SIDE KNOCK OUT
LEFT SIDE
VIEW
SIDE KNOCK OUT
HIGH VOLTAGE
ELECTRICAL HOLE
LOW VOLTAGE
ELECTRICAL HOLE
RIGHT SIDE
DRAIN LINE
HOLES
ALTERNATE
VENT/FLUE
LOCATION
STANDARD GAS
SUPPLY HOLE
DRAIN
TRAP
28 3/4
3/4
20 5/16
2 1/2
AIR INTAKE PIPE
2" PVC
7 3/8
LEFT SIDE
DRAIN LINE
HOLES
1 3/4
DRAIN
TRAP
C
L
1 1/2
1 5/8
30 1/4
9 3/8
11 3/4
19 3/16
23
BOTTOM KNOCK OUT
25 9/16
4 1/8
2 11/16
VENT/FLUE PIPE
2" PVC
RIGHT SIDE
VIEW
2 5/8
30 1/4
32 13/16
27 1/8
19 3/16
2 5/8
11 3/4
ALTERNATE
AIR INTAKE LOCATION
7 7/8
C
L
6 1/8
1 3/4
CONDENSATE
DRAIN TRAP
w/ 3/4" PVC
DISCHARGE
(RIGHT OR
LEFT SIDE)
3/4
40
3/4
2 1/16
2
BOTTOM KNOCK OUT
C
B
D
FRONT
VIEW
16 3/8
A
(DISCHARGE)
14
Model Input Output
Temp.
Rise
Number
of
Minimum
Circuit
Maximum
Overcurrent
Circulator Blower
Tons AC
at
Pressure
Switch Settings
(Inches W.C.)
Shipping
Weight
Number (Btu/hr) (Btu/hr) Range
(F)
Burners
Ampacity
1
(Amps)
Protection
2
(Amps)
Size
(D" x W")
HP
Number
of Speeds
0.5" ESP
ID
Blwr
Front
Cover
(lbs)
GUCA045AX30 46,000 42,200 92.0 35 - 65 2 9.0 15.0 11 X 6 1/3 4 1.5 - 3.0 -0.37 -0.37 131
GUCA070AX30 69,000 63,800 92.0 35 - 65 3 8.9 15.0 11 X 7 1/2 4 2.0 - 3.5 -0.37 -0.37 144
GUCA070AX40 69,000 63,300 92.0 35 - 65 3 8.9 15.0 11 X 9 1/2 4 2.5 - 4.0 -0.37 -0.37 152
GUCA090AX40 92,000 86,000 92.0 35 - 65 4 8.9 15.0 11 X 9 1/2 4 2.5 - 4.0 -0.37 -0.37 166
GUCA090AX50 92,000 85,100 92.0 35 - 65 4 13.8 15.0 11 X 9 3/4 4 3.0 - 5.0 -0.37 -0.37 175
GUCA115AX50 115,000 105,900 92.0 35 - 65 5 14.9 15.0 11 X 10 3/4 4 3.0 - 5.0 -0.37 -0.37 187
1
Minimum Circuit Ampacity = (1.25 x Circulator Blower Amps) + ID Blower Amps.
2
Maximum Overcurrent Protection refers to maximum recommended fuse or circuit breaker size.
3
As shipped for installations below 7,000 feet.
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