Roberts Gorden CRV-B-4 - Manual (Page 3)

© 2009 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 the
written permission of Roberts-Gordon LLC.
TABLE OF CONTENTS
SECTION 1: Concept .............................................................. 1
SECTION 2: The CRV-Series System..................................... 2
2.1 Safety........................................................................... 2
2.2 Zero Regulator ............................................................. 2
2.3 Fuel Savings and Comfort ........................................... 4
SECTION 3: Clearances to Combustibles............................. 5
3.1 Required Clearances to Combustibles......................... 5
SECTION 4: Sizing and Design Considerations................... 9
4.1 Radiant Adjustment to Heat Loss ................................ 9
4.2 Radiant Height Adjustment Factor ............................... 9
4.3 Selecting the Burners ................................................ 10
4.4 Radiant Distribution ................................................... 10
SECTION 5: Flow Loading.................................................... 12
5.1 Radiant Branch Flow ................................................. 12
5.2 Pump Capacity .......................................................... 14
5.3 Tailpipe Flow .............................................................. 14
SECTION 6: Radiant Tube and Tailpipe............................... 15
6.1 Radiant Tube Length.................................................. 15
6.2 Tailpipe....................................................................... 15
6.3 Design Parameters .................................................... 16
6.4 CRV-Series Design Methods ..................................... 16
6.5 Tailpipe Design Method ............................................. 18
SECTION 7: Example CRV-Series System Layouts............ 21
7.1 Example System Layout (Option 1) ............................ 21
7.2 Example System Layout (Option 2) ............................ 22
7.3 Example System Layout (Option 3) ............................ 22
7.4 Example System Layout (Option 4) ............................ 23
7.5 Example System Layout (Option 5) ............................ 23
7.6 Example System Layout (Option 6) ............................ 24
7.7 Example System Layout (Option 7, 8 and 9)............... 25
SECTION 8: Control Methods .............................................. 26
8.1 ROBERTS GORDON ® System Control
(P/N 02770002) ......................................................... 26
8.2 ROBERTS GORDON ® ULTRAVAC ™ .......................... 26
8.3 SPST Transformer Relay (P/N 90417600K)............... 27
8.4 DPST Transformer Relay (P/N 90436300)................. 27
8.5 Pressure Switch ......................................................... 27
SECTION 9: Air Supply System ........................................... 28
9.1 Pressurized ................................................................ 28
9.2 Non-Pressurized ........................................................ 28
9.3 Outside Air System Design Requirements................. 28
SECTION 10: ROBERTS GORDON ® ULTRAVAC ™ Design
Requirements................................................. 31
SECTION 11: CRV-Series Equipment Specifications ......... 32
11.1 Burner and Burner Controls...................................... 32
11.2 Equipment ................................................................ 32
Printed in U.S.A.