Roberts Gorden UHD[X][S][R] 75, UHD[X][S][R] 125 service manual Clearances to Combustibles

Page 54

Attach this information to the wall near the ROBERTS GORDON® heater

®

Read the Installation, Operation and Service Manual thoroughly before installation, operation or service.

OPERATING INSTRUCTIONS

WARNING

1.STOP! Read all safety instructions on this information sheet.

2.Open the manual gas valve in the heater supply line.

3.Turn on electric power to the heater.

4.Set the thermostat to desired setting (above ambient temperature). The automatic starting sequence begins.

TO TURN OFF THE HEATER

1.Turn the thermostat/time switch to 'OFF' or lowest setting. The burner will turn 'OFF' immediately, but fans will continue to cool heat exchanger until the fan thermostat switches off.

IF THE HEATER WILL NOT OPERATE, TO ENSURE YOUR SAFETY, FOLLOW THESE INSTRUCTIONS TO SHUT DOWN YOUR HEATER

1.Set the thermostat to off or the lowest setting.

2.Turn off electric power to the heater.

3.Turn off the manual gas valve in the heater supply line.

4.Call your installer/contractor qualified in the installation and service of gas-fired heating equipment.

Fire Hazard

Some objects can catch fire or explode when placed close to heater.

Keep all flammable objects, liquids and vapors the required clearances to combustibles away from heater.

Failure to follow these instructions can result in death, injury or property damage.

Top

Clearances to Combustibles

Top

 

 

Left

Right

Left

Right

Bottom

 

 

Bottom

 

 

 

Models 75 - 125

 

 

Models 150 - 400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Models

 

75 - 125

150 - 400

 

 

 

 

 

Top

 

1"

6"

 

 

 

 

 

Bottom

 

1"

6"

 

 

 

 

 

Right

 

1"

31"*

 

 

 

 

 

Left

 

18"*

6"

 

 

 

 

 

Vent

 

2"

2"

 

 

 

* Clearance needed for servicing.

Roberts-Gordon LLC

Telephone: 716.852.4400

1250 William Street

P.O. Box 44

Fax: 716.852.0854

Buffalo, NY 14240-0044 USA

Toll Free: 800.828.7450

Installation Code and Annual Inspections:

All installation and service of ROBERTS GORDON® equipment must be performed by a contractor qualified in the installation and service of equipment sold and supplied by Roberts-Gordon and conform to all requirements set forth in the ROBERTS GORDON® manuals and all applicable governmental authorities pertaining to the installation, service and operation of the equipment. To help facilitate optimum performance and safety, Roberts-Gordon recommends that a qualified contractor conduct annual inspections of your ROBERTS GORDON® equipment and perform service where necessary, using only replacement parts sold and supplied by Roberts-Gordon.

For installations at elevations above 2000' (610 m), the appliance shall be derated 4% for each 1000' (305 m) of elevation above sea level.

Further Information:Applications, engineering and detailed guidance on systems design, installation and equipment performance is available through ROBERTS GORDON® representatives. Please contact us for any further information you may require, including the Installation, Operation and Service Manual.

This product is not for residential use.

© 2008 Roberts-Gordon LLC

www.rg-inc.com

Printed in U.S.A.

P/N 91039831

Image 54
Contents Combat Page Roberts-Gordon LLC Page Table of Figures Page Heater Safety Manpower RequirementsNational Standards and Applicable Codes Installer ResponsibilityCorrosive Chemicals Wall TagManufactured Units Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information Clearances to CombustiblesGas Supply VentilationElectrical Supply VentNational Standards and Applicable Codes High Altitude Air Flow and Temperature Rise Ranges Duct Heater Installation 5.1 GeneralTemperature Rise and Pressure Drop Ranges Minimum Inlet Duct LengthShelf Mounting and Suspension Wall MountingShelf-Mounting Methods Changing Vent and Air Intake Orientation Vent InstallationVenting United States RequirementsUnvented Operation Standard Vented Heaters Models Uhdxr 75Separated Combustion Heaters Models Uhdxsr 75 Horizontal VentingMaximum Vent Lengths Vent MaterialReplacing an Existing Heater in a Venting System Vent and Roof Detail Standard Vented Heater Common Vertical Vent Termination Concentric Vent Box UHVK1 AIR Supply Separated Combustion InstallationUnvented Installation Building VentilationGAS Piping ConnectionsWiring Low Voltage Thermostat with One HeaterPositioning Thermostats Internal Wiring Diagram L2 L1Ladder Wiring Diagram Flue Blower Transformer GAS Valve Flame Sensor ElectrodeElectrical Connection to the Heater Pre-Start-Up Checks Operation and MaintenanceBegin Start-Up Before Operating the Heater Electrical ChecksEND View Turning Off the Heater Pressure SwitchCheck Gas Rate External ControlsHeater Operation User InstructionsUser Instructions Lighting Instructions 11.4.1 To Turn On HeaterSimple Troubleshooting Simple Troubleshooting Burner FaultsTo Turn Heater Off Servicing Vehicles and Other Maintenance ChecklistVicinity of the Heater ObjectsValves When installed DuctworkGas Line and Shut-off Burner ObservationTroubleshooting 13.1 General Troubleshooting For Automatic Ignition Burner Systems Conduct start-up procedure as shown on Page 23, SectionTroubleshooting for Flame Supervision System Troubleshooting for Gas Valves Troubleshooting for Flue BlowerReplacement Parts Burner ComponentsBurner Compartment Burner InjectorsIgnition Electrode and Flame Probe Flue Blower Vertical Installation Top, remove the blower and mounting plate as aboveLimit Switches Removal and Replacement Ignition ControlSpecifications 15.1 Dimension Data TOP ViewGeneral Technical Data Table Technical Data TablePage Roberts-Gordon Warranty is Void ifRoberts Gordon will not PAY for Limitations on Authority RepresentativesPage Owner Warranty Registration Card Page Page Clearances to Combustibles