Comfort-aire Gtua75-e4b, Gtua90-e5b, Gtua60-e3b, Gtua75-e3b, Gtua105-e5b Owner's Manual
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Table of Contents
Model Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Parts Numbers
Panels - Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Electrical Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Blower Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Heat Exchanger-Burner Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
Gas Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
Orifice Selection Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7
Drawings/Photographs
Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8
Blower Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9
Burner Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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22-July-2011
92-42810-GTUA-EB
Page 2 of 11
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MODEL NUMBER EXPLANATION |
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G |
T |
U |
A |
7 |
5 |
- |
E |
3 |
B |
1 |
2 |
3 |
4 |
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5 |
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6 |
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(1)GAS
(2)90% - 2 Stage
(3)UPFLOW CONDENSING
(4)PLACEHOLDER
(5)HEATING INPUT DESIGNATION
Electric Ignition |
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Input BTU/HR |
45 |
= |
45,000 |
60 |
= |
60,000 |
75 |
= |
75,000 |
90 |
= |
90,000 |
10 = 105,000
(6)VARIATION
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SERIAL NUMBER EXPLANATION |
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H |
E |
5 |
D |
7 |
0 |
7 |
F |
3 |
1 |
0 |
8 |
9 |
9 |
9 |
9 |
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(1) |
(2) |
(3) |
(4) |
(5) |
(6) |
(7) |
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(8) |
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(9) |
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(10) |
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(1) |
GAS CODE |
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(6) |
MOTOR HORSEPOWER |
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(2) |
LIMIT CONTROL |
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(7) |
PLANT |
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(3) |
BLOWER |
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(8) |
WEEK |
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(4) |
HEATING ELEMENT |
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(9) |
YEAR |
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(5) |
SPECIAL AREA REQUIREMENT |
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(10) |
PRODUCTION NUMBER |
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22-July-2011
92-42810-GTUA-EB
Page 3 of 11
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MODEL |
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GTUA |
GTUA |
GTUA |
GTUA |
GTUA |
GTUA |
No. Notes HEATING INPUT |
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45 |
60 |
75 |
75 |
90 |
105 |
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VARIATIONS |
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-E3B |
-E3B |
-E3B |
-E4B |
-E5B |
-E5B |
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PANELS, SHEET METAL, MISCELLANEOUS |
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1 |
Jacket |
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AS-61824-25 AS-61824-25 |
AS-61824-25 AS-61824-27 |
AS-61824-26 AS-61824-26 |
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4 |
Outlet Air Pipe |
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68-24021-01 68-24021-01 |
68-24021-01 68-24021-03 |
68-24021-01 68-24021-01 |
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5 |
Gasket - Outlet Air Pipe |
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68-24022-02 68-24022-02 |
68-24022-02 68-24022-02 |
68-24022-02 68-24022-02 |
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6 |
Top Plate |
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AS-61872-01 AS-61872-01 |
AS-61872-01 AS-61872-02 |
AS-61872-02 AS-61872-02 |
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7 |
Locknut - Fresh Air Damper |
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64-24031-01 64-24031-01 |
64-24031-01 64-24031-01 |
64-24031-01 64-24031-01 |
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8 |
Burner Door |
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AS-61866-09 AS-61866-09 |
AS-61866-09 AS-61867-09 |
AS-61867-09 AS-61867-09 |
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9 |
Blower/Filter Door |
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AS-67890-11 AS-67890-11 |
AS-67890-11 AS-67891-11 |
AS-67891-11 AS-67891-11 |
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10 |
Filter - Plastic |
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54-24094-01 54-24094-01 |
54-24094-01 54-24094-02 |
54-24094-02 54-24094-02 |
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Filter Retainer Rod |
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45-24095-01 45-24095-01 |
45-24095-01 45-24095-01 |
45-24095-01 45-24095-01 |
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Filter Rod Support Angle |
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AE-60520-01 AE-60520-01 |
AE-60520-01 AE-60520-01 |
AE-60520-01 AE-60520-01 |
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Filter Support Angle |
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AE-61883-01 AE-61883-01 |
AE-61883-01 AE-61883-01 |
AE-61883-01 AE-61883-01 |
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11 |
Solid Bottom |
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AE-61874-02 AE-61874-02 |
AE-61874-02 AE-61874-03 |
AE-61874-03 AE-61874-03 |
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Button Plug - 2 in. opening |
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45-22980-08 45-22980-08 |
45-22980-08 45-22980-08 |
45-22980-08 45-22980-08 |
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Button Plug (2) - 2-3/8 in. opening |
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45-22980-03 |
45-22980-03 |
45-22980-03 45-22980-03 |
45-22980-03 |
45-22980-03 |
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12 |
Pressure Switch Assembly |
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See Electrical Group |
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Silicon Tubing - Pressure Switch |
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AE-61737-10 AE-61737-10 |
AE-61737-10 AE-61737-10 |
AE-61737-10 AE-61737-10 |
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13 |
Trap / Elbow Assembly |
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68-100651-01 68-100651-01 |
68-100651-01 68-100651-01 |
68-100651-01 68-100651-01 |
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14 |
Water Trap Mount Bracket |
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AE-61841-01 AE-61841-01 |
AE-61841-01 AE-61841-01 |
AE-61841-01 AE-61841-01 |
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15 |
Junction Box Cover |
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AE-61476-02 |
AE-61476-02 |
AE-61476-02 AE-61476-02 |
AE-61476-02 |
AE-61476-02 |
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16 |
Door Switch (Push Button) |
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See Electrical Group |
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17 |
Junction Box |
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AE-61475-02 AE-61475-02 |
AE-61475-02 AE-61475-02 |
AE-61475-02 AE-61475-02 |
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Grommet (5/8 in. Tube) |
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56-22521-03 56-22521-03 |
56-22521-03 56-22521-03 |
56-22521-03 56-22521-03 |
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Grommet (1/2 in. I.D.) |
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56-24008-01 56-24008-01 |
56-24008-01 56-24008-01 |
56-24008-01 56-24008-01 |
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Grommet (1/4 in. I.D.) |
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56-24008-02 56-24008-02 |
56-24008-02 56-24008-02 |
56-24008-02 56-24008-02 |
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Grommet (2 in. opening) |
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56-22114-06 |
56-22114-06 |
56-22114-06 56-22114-06 |
56-22114-06 |
56-22114-06 |
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28 |
Heat Exchanger |
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See Heat Exchanger Group |
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29 |
Limit - Main Limit (Heat Exchanger Panel) |
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See Electrical Group |
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Limit - Manual Reset (Burner Compartment) |
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See Electrical Group |
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30 |
Connector/Transition |
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68-24047-07 |
68-24047-07 |
68-103061-01 68-24047-08 |
68-24047-08 |
68-24047-08 |
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31 |
Induced Draft Blower w/Gasket |
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See Electrical Group |
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Tubing - Includes Two Hose Clamps (3) |
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79-25353-82 79-25353-82 |
79-25353-82 |
79-25353-82 |
79-25353-82 |
79-25353-82 |
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Tubing Drain Trap (Induced Draft Blower - Includes |
791000 |
791000 |
791000 |
791001 |
791001 |
791001 |
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two Hose Clamps) |
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Elbow (Induced Draft Blower - 1/2 in. barbed) |
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68-24013-01 68-24013-01 |
68-24013-01 |
68-24013-01 |
68-24013-01 |
68-24013-01 |
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MODEL |
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GTUA |
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No. Notes HEATING INPUT |
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ALL |
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VARIATIONS |
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ALL |
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PARTS BAG |
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Complete Parts Bag |
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AS-100717-01 |
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2 |
O-Ring - Fresh Air Damper |
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68-24032-01 |
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3 |
Adapter - Fresh Air Damper and Locknut |
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68-24114-01 |
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1/2 in. Tee |
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68-21980-02 |
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1/2 in. PVC Pipe - 4 in. |
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68-22024-04 |
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Plug - Nylon - 7/8 in. |
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45-22926-01 |
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Plug - Nylon 1-1/8 in. |
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45-22926-02 |
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PVC Vane |
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68-23473-01 |
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PVC Wind Vane - 2-1/2 in. |
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68-24049-01 |
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Hose Clamp |
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64-22043-01 |
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Hose Clamp (2) |
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64-22043-02 |
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22-July-2011
92-42810-GTUA-EB
Page 4 of 11
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