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Roberts Gorden
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Roberts Gorden
CTCU 7, CTCU 27, CTCU 15, CTCU 11, CTCU 22, CTCU 32 service manual
Models:
CTCU 32
CTCU 7
CTCU 22
CTCU 11
CTCU 15
CTCU 27
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Troubleshooting
Specs
Install
CTCUA Wiring Diagram Models
Front and Back Panel Label Placement
Maintenance
Wiring And Electrical Information
Burner Lockout Reset Button
CTCUA Axial Fan/Guard/Motor Assembly
Combustion Testing
Page 4
Image 4
Page 3
Page 5
Page 4
Image 4
Page 3
Page 5
Contents
Combat
Models CTCU
CTCU
If you smell gas
Page
Page
Page
TABLE OF FIGURES
Page
Product Approval
1 of
SECTION 1 HEATER SAFETY
Figure 1 Front and Back Panel Label Placement
1.1 Manpower Requirements
1.2 Safety Labels and Their Placement
3 of
Figure 2 Side Panel Label Placement
Part Number
SECTION 2 INSTALLER RESPONSIBILITY
2.1 Clearances to Combustibles
2.2 Corrosive Chemicals
Product Damage Hazard
Fire Hazard
SECTION 3 CLEARANCES TO COMBUSTIBLES
3.1 Required Clearances to Combustibles
80 cm is necessary to service
Heaters may be installed vented or unvented
Disconnect electric before service
DANGER
SECTION 4 CRITCAL CONSIDERATIONS 4.1 Ventilation
SECTION 5 SPECIFICATIONS 5.1 CTCUA All Models
Dimension Data - CTCUA All Models
140 for
8 of
5.2 General Technical Data Table All Models
SECTION 6 HEATER INSTALLATION 6.1 General
6.2 Basic Information
6.4 Handling
6.5Suspension and Shelf Mounting
Existing cabinet screws must be re-used
Figure 4: Suspension Methods
11 of
Figure 5 Shelf Mounting and Hanging Suspension
Figure 6 Vertical Louvres Optional
7.4 Type B22 Appliance
See Page 14, Figure 7 through Page 14, Figure
Cut/Pinch Hazard
Edges are sharp
Figure 7 Flue and Roof Detail
14 of
15 of
8.1 Room Sealed Installation
8.2 Open Flued Installation
8.2.1 Heaters Installed Within the Heated Space
SECTION 8 AIR SUPPLY
SECTION 9 GAS PIPE WORK
9.1 Connections
18 of
SECTION 10 WIRING AND ELECTRICAL INFORMATION
10.2 Remote Controls
10.1 Electrical Supply
10.2.1 Burner Controls Thermostat
10.3 CTCUA Wiring Diagram Models
20 of
SECTION 11 COMMISSIONING
Gas Fired Heater
11.1 Pre-CommissionChecks
11.1.1 Louvres
11.4.1 Before Operating the Heater
11.4 Begin Commissioning
Figure 11 Automatic Burner Control Box Sequence
11.5 Combustion Testing
Figure 12 Gas Valve for Heater Models
Check Gas Rate
11.6 Turning Off the Heater
11.8 Complete the Commissioning
11.9 Instruction to the User
heater before service
before service
during installation
SECTION 12 USER INSTRUCTIONS
12.3.3 Burner Lockout Reset Button
12.5 Simple Fault Finding
12.5.1 Simple Fault Finding Burner Faults
12.3.2 Limit Thermostat
Turn off gas and electrical supply before service
13.2 Burner Maintenance
13.3 Fan/Motor Assembly Maintenance
13.4 Heat Exchanger Maintenance
13.5 Gas Control Valve Maintenance
13.7 Maintenance Checklist
13.6 Flue Fan
The Vicinity of the Heater
when installed
Burner Observation
Window
Flue Blower Scroll, Wheel
14.2 Burner Conversion
SECTION 14 CONVERSION BETWEEN GASES 14.1 General
14.3 Gas Valves
SECTION 15 TROUBLESHOOTING
Disconnect electric before service
heater before service
before service
15.1 General
32 of
SECTION 15 TROUBLESHOOTING
33 of
15.3 Troubleshooting for Flame Supervision System
15.4 Troubleshooting for Solenoid Valves
NOTE Minimum flame probe current 1 µA DC
34 of
SECTION 15 TROUBLESHOOTING
15.5 Troubleshooting for Main Fan
35 of
SECTION 16 REMOVAL AND REPLACEMENT PARTS
Burner Components
16.1 Gas Valve
16.1.1 Models
16.2 Burner Compartment
16.2.1 Burner Injectors
16.3 Ignition Electrode and Flame Probe
16.4 Flue Fan Vertical Installation Models
39 of
16.5 Flue Fan Vertical Installation Models
40 of
16.6 Pressure Switch
Carbon Monoxide Hazard
16.8 CTCUA Axial Fan/Guard/Motor Assembly
16.8.1 Fan Removal and Replacement
16.8.2 To Replace the Fan Assembly
16.7 Ignition Control
Page
80 cm is necessary to service heater
destratification fans are installed
Fire Hazard
close to heater
