Roberts Gorden Compact Tubular Unit Heaters CTCU 27 - Manual (Page 3)

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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 Flue 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 Supervision 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