Roberts Gorden UHD[S] 150-400 User Manual
Model
75
100
125
150
175
200
225
250
300
350
400
Total Input
[Btu/h] x [1000]
75
100
125
150
175
200
225
250
300
350
385
Total Output
[Btu/h] x [1000]
61.5
82
102.5
123
143.5
164
184.5
205
246
288.6
315.7
Efficiency
82% - All Models
Number of Burners
5
6
7
7
8
9
10
11
12
14
14
Gas Connection
[in]
½
½
½
½
½
½
¾
¾
¾
¾
¾
Inlet Pressure
[in wc] NG Min. 5
LPG Propane Min. 12
NG & LPG Propane Max. 14
Electrical Supply
115 V / 60 Hz / 1 Ø - All Models
Minimum Air Volume
[CFM]
850
950
1020
1360
1400
2050
2100
2350
2700
3120
3420
Temperature Rise @
Minimum Air Volume
[°F]
68
78
92
83
95
73
80
80
86
86
86
Heat Exchanger Pressure Drop
@ Minimum Air Volume
[in wc]
0.06
0.05
0.06
0.02
0.03
0.025
0.035
0.05
0.02
0.03
0.04
Maximum Air Volume
[CFM]
2650
3660
4750
5800
6850
7750
8300
8850
10200
13600
14200
Temperature Rise @
Maximum Air Volume
[°F]
22
22
20
20
20
20
20
22
23
22
22
Heat Exchanger Pressure Drop
@ Maximum Air Volume
[in wc]
0.36
0.55
0.98
0.16
0.29
0.163
0.253
0.35
0.27
0.48
0.53
Flue Size
[in] 4 - All Models
Air Intake
[in]
4
4
4
4
4
4
4
4
5
5
5
Weight
[lb]
81
92
97
191
211
239
249
254
325
345
345
Printed in U.S.A.
UHDSNA
5M 0308 Orig.
Installation Code and Annual Inspections:
All installations and service of ROBERTS GORDON
®
equipment must be performed by a contractor qualified in the installation and
service 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 avail-
able 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.
© 2008 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.
Combat
®
UHD[S]-Series Technical Data
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