Manuals
/
Roberts Gorden
/
Household Appliance
/
Furnace
Roberts Gorden
UHD[X][S][R] 75, UHD[X][S][R] 125 service manual
Models:
UHD[X][S][R] 125
UHD[X][S][R] 75
1
50
54
54
Download
54 pages
18.92 Kb
47
48
49
50
51
52
53
54
<
>
Troubleshooting
Specifications
Install
Internal Wiring Diagram
Replacement Parts
Warranty
Maintenance
Wiring
Reset Limit Switch - See Page 26, Section
Required Incoming Signals
Page 50
Image 50
Page 49
Page 51
Page 50
Image 50
Page 49
Page 51
Contents
Models UHDXSR 75
Combat
UHD-Series Tubular Duct Furnace Low Profile Range
Quality in Any Language
Page
2008 Roberts-GordonLLC
Page
TABLE OF FIGURES
Page
SECTION 1 HEATER SAFETY
1.1 Manpower Requirements
2.3 National Standards and Applicable Codes
SECTION 2 INSTALLER RESPONSIBILITY
2.2 Corrosive Chemicals
2.1 Wall Tag
3.5 Clearances to Combustibles
3.4 Minimum Required Installation Clearances
3.2 Manufactured Units
Figure 1 Clearances to Combustibles
3.6 Ventilation
Heaters may be installed vented or unvented
Gas can leak if not installed properly
Carbon Monoxide Hazard
4.3 Parking Structures and Repair Garages
4.1 Gas Codes
4.2 Aircraft Hangars
4.4 Electrical
4.6 High Altitude
5.1.3 Air Flow and Temperature Rise Ranges
SECTION 5 DUCT HEATER INSTALLATION 5.1 General
5.1.2 Temperature Rise and Pressure Drop Ranges
5.1.1 Minimum Inlet Duct Length
Figure 3 Suspension Methods
5.2 Shelf Mounting and Suspension
Crush Hazard Use 3/8 threaded rod minimum
5.3 Wall Mounting
Existing cabinet screws must be re-used
Figure 4 Shelf-MountingMethods
Figure 5 Wall Shelf Mounting and Suspension
6.1 Changing Vent and Air Intake Orientation
6.3 Vent Installation
SECTION 6 VENTING
6.2 Venting
6.5 Horizontal Venting
6.3.1Standard Vented Heaters Models UHDXR
6.4 Unvented Operation
6.6 Vertical Venting
6.7.1 Maximum Vent Lengths
6.8 Vent Material
UHDXR
Figure 6 Vent and Roof Detail
Model
90502102
Page
Figure 10 Concentric Vent Box
Concentric Vent Kit
Description
Part Number
UHVK1
SECTION 7 AIR SUPPLY
7.1 Separated Combustion Installation
7.2 Unvented Installation
7.3 Building Ventilation
Figure 12 Gas Connection
SECTION 8 GAS PIPING
8.1 Connections
Gas can leak if not installed properly
9.1 Positioning Thermostats
SECTION 9 WIRING
9.2 Low Voltage Thermostat with One Heater
Electrical Shock Hazard
9.3 Internal Wiring Diagram
9.4 Ladder Wiring Diagram
9.5 Electrical Connection to the Heater
10.2.1 Before Operating the Heater
SECTION 10 OPERATION AND MAINTENANCE
10.2 Begin Start-Up
10.1 Pre-Start-UpChecks
END VIEW
Figure 13 Automatic Burner Control Sequence
Figure 14 Gas Valve
Required Incoming Signals
10.2.4 Turning Off the Heater
10.2.3 Pressure Switch
Check Gas Rate
10.2.5 External Controls
Figure 15 Manual Reset Limit Switch
Reset Limit Switch - See Page 26, Section
The fault must be traced and repaired
SECTION 11 USER INSTRUCTIONS
Figure 16 LED Diagnostic Codes
11.5 Simple Troubleshooting
11.5.1 Simple Troubleshooting Burner Faults
11.4.2 To Turn Heater Off
12.4 Gas Valve Maintenance
12.2 Burner Maintenance
12.3 Heat Exchanger Maintenance
SECTION 12 SERVICING
See Page 3, Section
12.7 Maintenance Checklist
The Vicinity of the Heater
Vehicles and Other
Valves
when installed
Gas Line and Shut-off
Burner Observation
SECTION 13 TROUBLESHOOTING 13.1 General
START
TROUBLESHOOT ENDS. No
13.3 Troubleshooting for Flame Supervision System
START
13.4 Troubleshooting for Gas Valves
13.5 Troubleshooting for Flue Blower
START
14.1 Gas Valve
SECTION 14 REPLACEMENT PARTS
Burner Components
Ensure gas tight fitting of injectors
14.2 Burner Compartment
14.2.1 Burner Injectors
Ensure correct alignment with burners
14.3 Ignition Electrode and Flame Probe
14.4 Heat Exchanger
14.5 Flue Blower Vertical Installation
14.8.1 Removal and Replacement
14.6 Pressure Switch
14.8 Limit Switches
14.7 Ignition Control
SECTION 15 SPECIFICATIONS 15.1 Dimension Data
Model
15.2 General Technical Data Table
15.3 Technical Data Table
Page
ROBERTS GORDON WILL NOT PAY FOR
WARRANTY IS VOID IF
ROBERTS GORDON WILL PAY FOR
Roberts-Gordon
Page
About the Installer
Mail or Fax to
OWNER WARRANTY REGISTRATION CARD
Purchased From if different than installer
Page
Page
Fire Hazard