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erts-Gordon LLC
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Printed in U.S.A.
TABLE OF CONTENTS
SECTION 1: Heater Safety...................................................... 1
1.1 Manpower Requirements ............................................. 1
SECTION 2: Installer Responsibility ..................................... 2
2.1 Wall Tag ....................................................................... 2
2.2 Corrosive Chemicals.................................................... 2
2.3 National Standards and Applicable Codes .................. 2
SECTION 3: Critical Considerations ..................................... 3
3.1 Basic Information ......................................................... 3
3.2 Manufactured Units...................................................... 3
3.3 Location and Suspension ............................................ 3
3.4 Minimum Required Installation Clearances ................. 3
3.5 Clearances to Combustibles ........................................ 3
3.6 Ventilation .................................................................... 4
3.7 Gas Supply .................................................................. 4
3.8 Electrical Supply .......................................................... 4
3.9 Vent.............................................................................. 4
SECTION 4: National Standards and Applicable Codes ..... 5
4.1 Gas Codes................................................................... 5
4.2 Aircraft Hangars ........................................................... 5
4.3 Parking Structures and Repair Garages ...................... 5
4.4 Electrical ...................................................................... 5
4.5 Venting......................................................................... 5
4.6 High Altitude ................................................................ 6
SECTION 5: Duct Heater Installation..................................... 7
5.1 General ........................................................................ 7
5.2 Suspension .................................................................. 8
SECTION 6: Venting................................................................ 9
6.1 Changing Vent and Air Intake Orientation.................... 9
6.2 Venting......................................................................... 9
6.3 Vent Installation ........................................................... 9
6.4 Unvented Operation................................................... 10
6.5 Horizontal Venting...................................................... 10
6.6 Vertical Venting .......................................................... 10
6.7 Length Requirements ................................................ 10
6.8 Vent Material.............................................................. 11
6.9 Replacing an Existing Heater in a Venting System .... 11
SECTION 7: Air Supply......................................................... 15
7.1 Separated Combustion Installation............................. 15
7.2 Unvented Installation .................................................. 15
7.3 Building Ventilation ..................................................... 15
7.4 Outside Combustion Air Supply.................................. 15
SECTION 8: Gas Piping ........................................................ 16
8.1 Connections............................................................... 16
SECTION 9: Wiring................................................................ 17
9.1 Positioning Thermostats ............................................ 17
9.2 Low Voltage Thermostat with One Heater ................. 17
9.3 Internal Wiring Diagram ............................................. 18
9.4 Ladder Wiring Diagram.............................................. 19
9.5 Electrical Connection to the Heater ........................... 20
SECTION 10: Operation and Maintenance ..........................21
10.1 Pre-Start-Up Checks ................................................21
10.2 Begin Start-Up .........................................................21
10.3 Complete Start-Up ...................................................23
SECTION 11: User Instructions............................................24
11.1 User Instructions .......................................................24
11.2 Heater Operation ......................................................24
11.3 Lighting Instructions ..................................................24
11.4 Simple Troubleshooting.............................................24
SECTION 12: Servicing .........................................................25
12.1 Servicing Instructions...............................................25
12.2 Burner Maintenance.................................................25
12.3 Heat Exchanger Maintenance ..................................25
12.4 Gas Valve Maintenance ...........................................25
12.5 Flue Blower ..............................................................25
12.6 Venting and Air Intake Pipe ......................................25
12.7 Maintenance Checklist .............................................26
SECTION 13: Troubleshooting .............................................28
13.1 General ....................................................................28
13.2 Troubleshooting For Automatic Ignition Burner
Systems ...................................................................29
13.3 Troubleshooting for Flame Supervision System .......30
13.4 Troubleshooting for Gas Valves ................................31
13.5 Troubleshooting for Flue Blower ...............................31
SECTION 14: Replacement Parts.........................................32
14.1 Gas Valve .................................................................32
14.2 Burner Compartment ...............................................33
14.3 Ignition Electrode and Flame Probe .........................34
14.4 Heat Exchanger .......................................................35
14.5 Flue Blower .............................................................35
14.6 Pressure Switch........................................................36
14.7 Ignition Control .........................................................36
14.8 Limit Switches ..........................................................36
SECTION 15: Specifications.................................................37
15.1 Dimension Data........................................................37
15.2 General Technical Data Table ..................................38
15.3 Technical Data Table ................................................38
SECTION 16: The ROBERTS GORDON
®
COMBAT
®
UHD-Series Warranty .....................................39
