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ESTIMATED SHIPPING WEIGHTS - BURNERS (ALL MODELS)
GAS
BURNER
Input MBH
300 -
625
626 -
938
939 -
1250
1251 -
1875
1876 -
2500
2501 -
3125
3126 -
5000
Weight 155 190 230 290 300 340 340
#2 OIL BURNER
Input GPH
2.5 -
4.5
4.6 -
6.7
6.8 -
8.9
9.0 -
13.4
13.5 -
17.9
18 -
22
22.1 -
36
Weight 125 125 220 220 310 360 385
COMBINATION
GAS / #2 OIL
BURNER
Input MBH
300 -
625
626 -
938
939 -
1250
1251 -
1875
1876 -
2500
2501 -
3125
3126 -
5000
Input GPH
2.5 -
4.5
4.6 -
6.7
6.8 -
8.9
9.0 -
13.4
13.5 -
17.9
18 -
22
22.1 -
36
Weight 200 240 270 360 400 450 500
AT-Series Estimated Shipping Weights
IMPORTANT NOTES:
•All weights are in pounds.
•All weights are subject to change
without notice.
•To determine total unit weight, add
the appropriate burner weight to the
appropriate base unit weight
(as listed in performance information
tables).
To create a complete air turnover unit, choose one base unit and one burner/manifold package using the tables on the
following pages. Prices apply for natural gas or LPG units.
AT-Series Selection Guide
1. Choosing A Base Unit Package
Base Unit Package choice is based on model choice. First locate the correct set of tables on the following pages which corresponds to the required
type of unit. Locate CFM and MBH requirements on the appropriate set of tables to determine the unit model. If more than one model is applicable,
choose the smaller model.
Btu/h Output Required = CFM * 1.08 * Temperature Rise
MBH = Btu/h / 1,000
2. Choosing A Burner/Manifold Package
Choose Burner/Manifold Package based on input, burner type and insurance requirements. Choose a Burner/Manifold Package that can fulll the
maximum output of the model. Note that burner INPUTS are listed rather than outputs.
Burner Input = Burner Output / .8
Tables A: Air Turnover Heating Unit Performance Information
(Additional congurations are available upon request.)
AT-136
CFM Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise
Range (°F)
Base Unit
Weight
(lbs.)
4,500 1 (1 motor) 240 450 49 to 93 2,225
9,000 2 (1 motor) 240 450 25 to 46 2,280
12,000 3 (1 motor) 240 450 19 to 35 2,305
AT-148
CFM Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise
Range (°F)
Base Unit
Weight
(lbs.)
10,000 3 (1 motor) 240 450 22 to 42 3,255
16,000 3 (1 motor) 240 750 14 to 43 3,300
AT-154
CFM Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise
Range (°F)
Base Unit
Weight
(lbs.)
14,000 3 (1 motor) 240 450 16 to 30 3,880
22,000 5 (1 motor) 240 750 10 to 32 3,940
30,000 7.5 (1 motor) 520 1,000 16 to 31 4,115
30,000 7.5 (1 motor) 560 1,250 17 to 39 4,220
AT-236
CFM Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise
Range (°F)
Base Unit
Weight
(lbs.)
9,000 1 (2 motors) 240 450 25 to 46 3,945
18,000 2 (2 motors) 240 750 12 to 39 3,990
24,000 3 (2 motors) 520 1,000 20 to 39 4,115
AT-242
CFM Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp.
Rise
Range (°F)
Base Unit
Weight
(lbs.)
21,000 2 (2 motors) 240 750 11 to 33 4,990
31,000 3 (2 motors) 520 1,000 16 to 30 5,115
31,000 3 (2 motors) 560 1,250 17 to 37 5,240
AT-248
CFM Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise
Range (°F)
Base Unit
Weight
(lbs.)
22,000 3 (2 motors) 240 750 10 to 32 5,990
35,000 5 (2 motors) 520 1,000 14 to 26 6,145
45,000 5 (2 motors) 560 1,250 12 to 26 6,270
45,000 5 (2 motors) 560 1,500 12 to 31 6,270
AT-254
CFM Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise
Range (°F)
Base Unit
Weight
(lbs.)
40,000 5 (2 motors) 560 1,750 13 to 41 7,670
60,000 7.5 (2 motors) 600 2,250 9 to 35 8,060
65,000 7.5 (2 motors) 600 2,500 9 to 36 8,310
AT-260
CFM Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise
Range (°F)
Base Unit
Weight
(lbs.)
54,000 5 (2 motors) 600 3,000 10 to 51 10,870
61,000 7.5 (2 motors) 720 4,000 11 to 61 11,135
74,000 7.5 (2 motors) 720 4,000 9 to 50 11,135
AT-272
CFM Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise
Range (°F)
Base Unit
Weight
(lbs.)
62,000 5 (2 motors) 600 3,000 9 to 45 11,720
88,000 10 (2 motors) 720 4,500 8 to 47 12,185
100,000
10 (2 motors) 720 4,500 7 to 42 12,185
6