Roberts Gorden UHD[X][S][R] 125 User Manuals

Table of Contents

• SECTION 1: Heater Safety

  1
• SECTION 10: Operation and Maintenance

  23
• 1.1 Manpower Requirements

  1
• 10.1 Pre-Start-Up Checks

  23
• SECTION 2: Installer Responsibility

  2
• 10.2 Begin Start-Up

  23
• 2.1 Wall Tag

  2
• 10.3 Complete Start-Up

  25
• 2.2 Corrosive Chemicals

  2
• SECTION 11: User Instructions

  26
• 2.3 National Standards and Applicable Codes

  2
• 11.1 User Instructions

  26
• SECTION 3: Critical Considerations

  3
• 11.2 Heater Operation

  26
• 3.1 Basic Information

  3
• 11.3 Common User Controls

  26
• 3.2 Manufactured Units

  3
• 11.4 Lighting Instructions

  26
• 3.3 Location and Suspension

  3
• 11.5 Simple Troubleshooting

  27
• 3.4 Minimum Required Installation Clearances

  3
• SECTION 12: Servicing

  28
• 3.5 Clearances to Combustibles

  3
• 12.1 Servicing Instructions

  28
• 3.6 Ventilation

  4
• 12.2 Burner Maintenance

  28
• 3.7 Gas Supply

  4
• 12.3 Heat Exchanger Maintenance

  28
• 3.8 Electrical Supply

  4
• 12.4 Gas Valve Maintenance

  28
• 3.9 Vent

  4
• 12.5 Flue Blower

  28
• SECTION 4: National Standards and Applicable Codes

  5
• 12.6 Venting and Air Intake Pipe

  28
• 4.1 Gas Codes

  5
• 12.7 Maintenance Checklist

  29
• 4.2 Aircraft Hangars

  5
• SECTION 13: Troubleshooting

  31
• 4.3 Parking Structures and Repair Garages

  5
• 13.1 General

  31
• 4.4 Electrical

  5
• 4.5 Venting

  5
• Systems

  32
• 4.6 High Altitude

  6
• 13.3 Troubleshooting for Flame Supervision System

  33
• SECTION 5: Duct Heater Installation

  7
• 13.4 Troubleshooting for Gas Valves

  34
• 5.1 General

  7
• 13.5 Troubleshooting for Flue Blower

  34
• 5.2 Shelf Mounting and Suspension

  8
• SECTION 14: Replacement Parts

  35
• 5.3 Wall Mounting

  8
• 14.1 Gas Valve

  35
• SECTION 6: Venting

  10
• 14.2 Burner Compartment

  36
• 6.1 Changing Vent and Air Intake Orientation

  10
• 14.3 Ignition Electrode and Flame Probe

  37
• 6.2 Venting

  10
• 14.4 Heat Exchanger

  37
• 6.3 Vent Installation

  10
• 14.5 Flue Blower Vertical Installation

  38
• 6.4 Unvented Operation

  11
• 14.6 Pressure Switch

  39
• 6.5 Horizontal Venting

  11
• 14.7 Ignition Control

  39
• 6.6 Vertical Venting

  11
• 14.8 Limit Switches

  39
• 6.7 Length Requirements

  11
• SECTION 15: Specifications

  40
• 6.8 Vent Material

  12
• 15.1 Dimension Data

  40
• 15.2 General Technical Data Table

  41
• SECTION 7: Air Supply

  17
• 15.3 Technical Data Table

  41
• 7.1 Separated Combustion Installation

  17
• 7.2 Unvented Installation

  17
• Warranty

  43
• 7.3 Building Ventilation

  17
• 7.4 Outside Combustion Air Supply

  17
• SECTION 8: Gas Piping

  18
• 8.1 Connections

  18
• SECTION 9: Wiring

  19
• 9.1 Positioning Thermostats

  19
• 9.2 Low Voltage Thermostat with One Heater

  19
• 9.3 Internal Wiring Diagram

  20
• 9.4 Ladder Wiring Diagram

  21
• 9.5 Electrical Connection to the Heater

  22
• Figure 1: Clearances to Combustibles

  3
• Figure 2: Air Flow Direction

  7
• Figure 3: Suspension Methods

  8
• Figure 4: Shelf-Mounting Methods

  9
• Figure 5: Wall Shelf Mounting and Suspension

  9
• Figure 6: Vent and Roof Detail

  13
• Vent Termination

  13
• Termination

  14
• Horizontal Vent Termination

  15
• Figure 10: Concentric Vent Box

  15
• Separated Combustion Heater

  16
• Figure 12: Gas Connection

  18
• Figure 13: Automatic Burner Control Sequence

  24
• Figure 14: Gas Valve

  24
• Figure 15: Manual Reset Limit Switch

  26
• Figure 16: LED Diagnostic Codes

  27