Roberts Gorden 300 User Manual
© 2012
Roberts-Gordon LLC
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or copied in any form or by any means - graphic, electronic, or mechanical, including
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written permission of Roberts-Gordon LLC.
Printed in U.S.A.
TABLE OF CONTENTS
SECTION 1: Heater Safety...................................................... 1
1.1 Manpower Requirements ............................................. 1
1.2 Safety Labels and Their Placement ............................. 1
1.3 California Proposition 65 .............................................. 1
2.1 Wall Tag ....................................................................... 5
2.2 Corrosive Chemicals.................................................... 5
2.3 National Standards and Applicable Codes .................. 5
1.2 Safety Labels and Their Placement ............................. 1
1.3 California Proposition 65 .............................................. 1
2.1 Wall Tag ....................................................................... 5
2.2 Corrosive Chemicals.................................................... 5
2.3 National Standards and Applicable Codes .................. 5
SECTION 3: Critical Considerations ..................................... 6
3.1 Basic Information ......................................................... 6
3.2 Manufactured Units...................................................... 6
3.3 Location and Suspension ............................................ 6
3.4 Minimum Required Installation Clearances ................. 6
3.5 Ventilation .................................................................... 6
3.6 Gas Supply .................................................................. 6
3.7 Electrical Supply .......................................................... 6
3.8 Vent.............................................................................. 6
3.2 Manufactured Units...................................................... 6
3.3 Location and Suspension ............................................ 6
3.4 Minimum Required Installation Clearances ................. 6
3.5 Ventilation .................................................................... 6
3.6 Gas Supply .................................................................. 6
3.7 Electrical Supply .......................................................... 6
3.8 Vent.............................................................................. 6
SECTION 4: Clearances TO combustibles............................ 7
4.1 Required Clearances To Combustibles........................ 7
4.2 Clearances To Combustibles ....................................... 7
4.2 Clearances To Combustibles ....................................... 7
SECTION 5: National Standards and Applicable Codes ..... 8
5.1 Gas Codes................................................................... 8
5.2 Aircraft Hangars ........................................................... 8
5.3 Parking Structures and Repair Garages ...................... 8
5.4 Electrical ...................................................................... 8
5.5 Venting......................................................................... 8
5.6 High Altitude ................................................................ 9
5.2 Aircraft Hangars ........................................................... 8
5.3 Parking Structures and Repair Garages ...................... 8
5.4 Electrical ...................................................................... 8
5.5 Venting......................................................................... 8
5.6 High Altitude ................................................................ 9
SECTION 6: Heater installation............................................ 10
6.1 General ...................................................................... 10
6.2 Suspension ................................................................ 10
6.2 Suspension ................................................................ 10
SECTION 7: Venting.............................................................. 11
7.1 Venting ....................................................................... 11
7.2 Vent Installation .......................................................... 11
7.3 Unvented Operation ................................................... 12
7.4 Horizontal Venting ...................................................... 12
7.5 Vertical Venting........................................................... 12
7.6 Length Requirements ................................................. 12
7.7 Vent Material............................................................... 13
7.8 Replacing an Existing Heater in a Venting System..... 13
7.2 Vent Installation .......................................................... 11
7.3 Unvented Operation ................................................... 12
7.4 Horizontal Venting ...................................................... 12
7.5 Vertical Venting........................................................... 12
7.6 Length Requirements ................................................. 12
7.7 Vent Material............................................................... 13
7.8 Replacing an Existing Heater in a Venting System..... 13
SECTION 8: Air Supply ......................................................... 18
8.1 Separated Combustion Installation ............................ 18
8.2 Unvented Installation ................................................. 18
8.3 Building Ventilation .................................................... 18
8.4 Outside Combustion Air Supply ................................. 18
8.2 Unvented Installation ................................................. 18
8.3 Building Ventilation .................................................... 18
8.4 Outside Combustion Air Supply ................................. 18
SECTION 9: Gas Piping ........................................................ 19
9.1 Connections............................................................... 19
SECTION 10: Wiring .............................................................. 21
10.1 Positioning Thermostats .......................................... 21
10.2 Low Voltage Thermostat with One Heater ............... 21
10.3 Low Voltage Thermostat with Multiple Heaters
10.2 Low Voltage Thermostat with One Heater ............... 21
10.3 Low Voltage Thermostat with Multiple Heaters
(Models UHA[X][S]150 - 250) .................................... 22
10.4 Low Voltage Thermostat with Multiple Heaters
(Models UHA[X][S]300 - 400).................................... 23
10.5 UHA[X][S] Series Internal Wiring Diagram............... 24
10.6 UHA[X][S] Series Ladder Wiring Diagram................ 25
10.7 Electrical Connection to the Heater.......................... 26
10.6 UHA[X][S] Series Ladder Wiring Diagram................ 25
10.7 Electrical Connection to the Heater.......................... 26
SECTION 11: Operation and Maintenance ..........................27
11.1 Pre-Start-Up Checks .................................................27
11.2 Begin Start-Up ..........................................................28
11.3 Complete the Start-Up ..............................................30
11.2 Begin Start-Up ..........................................................28
11.3 Complete the Start-Up ..............................................30
SECTION 12: User Instructions............................................31
12.1 Heater Operation......................................................31
12.2 Lighting Instructions .................................................31
12.3 Simple Troubleshooting ............................................31
12.2 Lighting Instructions .................................................31
12.3 Simple Troubleshooting ............................................31
SECTION 13: Servicing .........................................................32
13.1 Servicing Instructions...............................................32
13.2 Burner Maintenance.................................................32
13.3 Fan/Motor Assembly Maintenance ...........................32
13.4 Heat Exchanger Maintenance ..................................32
13.5 Gas Valve Maintenance ...........................................32
13.6 Flue Blower ..............................................................32
13.7 Venting and Air Intake Pipe ......................................33
13.8 Maintenance Checklist .............................................33
13.2 Burner Maintenance.................................................32
13.3 Fan/Motor Assembly Maintenance ...........................32
13.4 Heat Exchanger Maintenance ..................................32
13.5 Gas Valve Maintenance ...........................................32
13.6 Flue Blower ..............................................................32
13.7 Venting and Air Intake Pipe ......................................33
13.8 Maintenance Checklist .............................................33
SECTION 14: Troubleshooting .............................................35
14.1 General ....................................................................36
14.2 Troubleshooting For Automatic Ignition Burner
14.2 Troubleshooting For Automatic Ignition Burner
Systems...................................................................37
14.3 Troubleshooting for Flame Supervision System .......38
14.4 Troubleshooting for Gas Valves ................................39
14.5 Troubleshooting for Flue Blower ...............................39
14.4 Troubleshooting for Gas Valves ................................39
14.5 Troubleshooting for Flue Blower ...............................39
SECTION 15: Replacement Parts .........................................40
15.1 Gas Valve .................................................................40
15.2 Burner Compartment ...............................................41
15.3 Ignition Electrode and Flame Probe .........................42
15.4 Heat Exchanger .......................................................43
15.5 Louvers and Louver Spring ......................................43
15.6 Flue Blower .............................................................44
15.7 Pressure Switch........................................................45
15.8 Ignition Control .........................................................45
15.9 Axial Fan/Guard/Motor Assembly.............................45
15.10 Limit Switches ........................................................46
15.2 Burner Compartment ...............................................41
15.3 Ignition Electrode and Flame Probe .........................42
15.4 Heat Exchanger .......................................................43
15.5 Louvers and Louver Spring ......................................43
15.6 Flue Blower .............................................................44
15.7 Pressure Switch........................................................45
15.8 Ignition Control .........................................................45
15.9 Axial Fan/Guard/Motor Assembly.............................45
15.10 Limit Switches ........................................................46
SECTION 16: Specifications.................................................47
16.1 Dimension Data........................................................47
16.2 General Technical Data Table ..................................48
16.3 Technical Data Table ................................................48
16.2 General Technical Data Table ..................................48
16.3 Technical Data Table ................................................48
SECTION 17: The ROBERTS GORDON
®
COMBAT
®
UHA-Series Warranty .....................................50