Roberts Gorden AT-248 Manuel D’Utilisation

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Tables D: Air Turnover Heating/Cooling Unit with Filtration Performance Information
AT-136
CFM
Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise 
Range (°F)
Base Unit 
Weight
(lbs.)
4,500
1.5 (1 motor)
240
450
49 to 93
2,425
9,000
5 (1 motor)
240
450
25 to 46
2,505
12,000
5 (1 motor)
240
450
19 to 35
2,520
AT-148
CFM
Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise 
Range (°F)
Base Unit 
Weight
(lbs.)
10,000
5 (1 motor)
240
450
22 to 42
3,455
16,000 7.5 (1 motor)
240
750
14 to 43
3,470
AT-154
CFM
Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise 
Range (°F)
Base Unit 
Weight
(lbs.)
14,000
5 (1 motor)
240
450
16 to 30
4,080
22,000 7.5 (1 motor)
240
750
10 to 32
4,140
30,000 10 (1 motor)
520
1,000
16 to 31
4,210
30,000 10 (1 motor)
560
1,250
17 to 39
4,420
AT-236
CFM
Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise 
Range (°F)
Base Unit 
Weight
(lbs.)
9,000 1.5 (2 motors)
240
450
25 to 46
4,145
18,000 5 (2 motors)
240
750
12 to 39
4,240
24,000 5 (2 motors)
520
1,000
20 to 39
4,270
AT-242
CFM
Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise 
Range (°F)
Base Unit 
Weight
(lbs.)
21,000 5 (2 motors)
240
750
11 to 33
5,240
31,000 7.5 (2 motors)
520
1,000
16 to 30
5,270
31,000 7.5 (2 motors)
560
1,250
17 to 37
5,445
AT-248
CFM
Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise 
Range (°F)
Base Unit 
Weight
(lbs.)
22,000 5 (2 motors)
240
750
10 to 32
6,190
35,000 7.5 (2 motors)
520
1,000
14 to 26
6,345
45,000 10 (2 motors)
560
1,250
12 to 26
6,575
45,000 10 (2 motors)
560
1,500
12 to 31
6,730
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
7,870
60,000 10 (2 motors)
600
2,250
9 to 35
8,310
65,000 15 (2 motors)
600
2,500
9 to 36
8,560
AT-260
CFM
Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise 
Range (°F)
Base Unit 
Weight
(lbs.)
54,000 7.5 (2 motors)
600
3,000
10 to 51
11,070
61,000 10 (2 motors)
720
4,000
11 to 61
11,335
74,000 15 (2 motors)
720
4,000
9 to 50
11,385
AT-272
CFM
Motor (HP)
Output
(MBH)
Minimum
Output
(MBH)
Maximum
Temp. Rise 
Range (°F) 
Base Unit 
Weight
(lbs.)
62,000 7.5 (2 motors)
600
3,000
9 to 45
12,160
88,000 15 (2 motors)
720
4,500
8 to 47
12,385
100,000 15 (2 motors)
720
4,500
7 to 42
12,515
Roberts-Gordon, LLC
1250 William Street
P.O. Box 44
Buffalo, NY 14240-0044 USA 
Telephone: 716.852.4400
Fax: 716.852.0854
Toll Free: 800.828.7450
www.rg-inc.com
European Office:
Roberts Gordon Europe Limited
Telephone: +44(0)121 506 7700
Fax: +44(0)121 506 7701
Installation Code and Annual Inspections:
  
All installations and service of ROBERTS GORDON
®
 equipment must be performed by a contractor qualified in the installation and ser-
vice of equipment sold and supplied by Roberts-Gordon and conform to all requirements set forth in the ROBERTS GORDON
®
 manuals 
and all applicable governmental authorities pertaining to the installation, service and operation of the equipment. To help facilitate 
optimum performance and safety, Roberts-Gordon recommends that a qualified contractor annually inspect your ROBERTS GORDON
®
 
equipment and perform service where necessary, using only replacement parts sold and supplied by Roberts-Gordon.
Further Information: 
Applications, engineering and detailed guidance on systems design, installation and equipment performance is  
available through ROBERTS GORDON
®
 representatives. Please contact us for any further information you may require, including the  
Installation, Operation and Service Manual. 
This product is not for residential use.
This document is intended to assist licensed professionals in the exercise of their professional judgement. 
© 2007 Roberts-Gordon, LLC   All rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form  
 
   
  or by any means – graphic, electronic, or mechanical, including photocopying, recording, taping, or information  
 
   
  storage and retrieval systems – without written permission of Roberts-Gordon, LLC.
(For cooling applications, consult factory.  Base Unit Weights do not account for inclusion of cooling coils or exclusion of heat exchanger.  
Additional configurations are available upon request.)