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© 2011
Roberts-Gordon Europe Ltd
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 Europe Ltd.
Printed in U.K.
TABLE OF CONTENTS
SECTION 1: Heater Safety......................................................2
1.1 Manpower Requirements .............................................2
1.2 Safety Labels and Their Placement .............................2
SECTION 2: Installer Responsibility .....................................4
2.1 Clearances to Combustibles........................................4
2.2 Corrosive Chemicals....................................................4
2.3 National Standards and Applicable Codes ..................4
SECTION 3: Clearances to Combustibles.............................5
3.1 Required Clearances to Combustibles.........................5
SECTION 4: Critcal Considerations ......................................7
4.1 Ventilation....................................................................7
4.2 Gas Supply..................................................................7
4.3 Electrical Supply..........................................................7
4.4 Flue..............................................................................7
SECTION 5: Specifications ....................................................8
5.1 CTCUA (All Models) ....................................................8
5.2 General Technical Data Table (All Models)..................9
5.3 Technical Data Table (All Models)................................9
SECTION 6: Heater Installation............................................ 10
6.1 General......................................................................10
6.2 Basic Information.......................................................10
6.3 Location and Suspension ..........................................10
6.4 Handling ....................................................................10
6.5 Suspension and Shelf Mounting................................10
6.6 Wall Mounting............................................................ 10
SECTION 7: Flue Installation ...............................................13
7. 1 F lue Installation ..........................................................13
7.2 Changing Flue and Air Intake Orientation ..................13
7.3 Type C
12
, C
32
& C
62
Appliance..................................... 13
7.4 Type B
22
Appliance .....................................................13
SECTION 8: Air Supply.........................................................16
8.1 Room Sealed Installation...........................................16
8.2 Open Flued Installation..............................................16
8.3 Building Ventilation ....................................................16
SECTION 9: Gas Pipe Work..................................................17
9.1 Connections...............................................................17
SECTION 10: Wiring and Electrical Information.................19
10.1 Electrical Supply ......................................................19
10.2 Remote Controls......................................................19
10.3 CTCUA Wiring Diagram (Models 7-32) ....................20
SECTION 11: Commissioning..............................................21
11.1 Pre-Commission Checks ..........................................21
11.2 Gas Supply...............................................................21
11.3 Mechanical Checks...................................................21
11.4 Begin Commissioning...............................................22
11.5 Combustion Testing ..................................................23
11.6 Turning Off the Heater ..............................................23
11.7 External Controls......................................................23
11.8 Complete the Commissioning...................................24
11.9 Instruction to the User ..............................................24
SECTION 12: User Instructions ...........................................25
12.1 User Instructions......................................................25
12.2 Heater Operation .....................................................25
12.3 Common User Controls ...........................................25
12.4 Lighting Instructions.................................................26
12.5 Simple Fault Finding ................................................26
SECTION 13: Servicing.........................................................27
13.1 Servicing Instructions...............................................27
13.2 Burner Maintenance.................................................27
13.3 Fan/Motor Assembly Maintenance...........................27
13.4 Heat Exchanger Maintenance..................................27
13.5 Gas Control Valve Maintenance...............................28
13.6 Flue Fan...................................................................28
13.7 Maintenance Checklist.............................................28
SECTION 14: Conversion Between Gases..........................30
14.1 General ....................................................................30
14.2 Burner Conversion ...................................................30
14.3 Gas Valves ...............................................................30
SECTION 15: Troubleshooting .............................................31
15.1 General ....................................................................32
15.2 Troubleshooting For Automatic Ignition Burner
Systems....................................................................33
15.3 Troubleshooting for Flame S
upervision System .......34
15.4 Troubleshooting for Solenoid Valves ........................34
15.5 Troubleshooting for Main Fan...................................35
SECTION 16: Removal and Replacement Parts..................36
16.1 Gas Valve.................................................................36
16.2 Burner Compartment ...............................................37
16.3 Ignition Electrode and Flame Probe.........................38
16.4 Flue Fan Vertical Installation (Models 7 - 15) ...........39
16.5 Flue Fan Vertical Installation (Models 22 - 32).........40
16.6 Pressure Switch........................................................41
16.7 Ignition Control.........................................................42
16.8 CTCUA Axial Fan/Guard/Motor Assembly ...............42
16.9 Fan and Limit Thermostats ......................................42