Roberts Gorden Combat UHA[X][S] 100 Service Manual

Models UHA[S]150, 175, 200, 225250, 300, 350, 400P/N RP111101NA 06/08 Rev. EWARNINGFOR YOUR SAFETYIf you smell gas:1. Open windows.2. DO NOT try to li

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL4 Figure 1: Installation Clearances and Clearances to CombustiblesWARNINGFire HazardSo

SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES5SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES4.1 Gas CodesThe type of gas appearing on the nam

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL6 SECTION 5: MAJOR COMPONENTS 5.1 General Heaters are designed for installation above

SECTION 6: VENTING7SECTION 6: VENTING6.1 VentingThis heater must be vented in accordance with the rules contained in this manual and with the followin

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL8 6.2.2 Separated Combustion Heaters (Models UHAS 150 - 400)The heaters are d

SECTION 6: VENTING96.7 Vent MaterialVent material may be single wall 26 ga. (minimum) galvanized steel or equal thickness stainless steel. Completely

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL10 Figure 5: Standard Vented Heater - Common Vertical Vent Termination

SECTION 6: VENTING11Figure 6: Separated Combustion Heater - Vertical and Horizontal Vent TerminationFigure 7: Concentric Vent BoxVentTerminationListed

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL12 Figure 8: Concentric Vertical and Horizontal Vent Termination - Separated Combustio

SECTION 7: AIR SUPPLY13SECTION 7: AIR SUPPLY7.1 Separated Combustion InstallationWhen installed as a separated combustion heater (UHAS), the air for c

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL14 SECTION 8: GAS PIPINGIt is important that the gas supply pipe and the electrical co

SECTION 9: WIRING15SECTION 9: WIRINGAll heater models require constant 120 V 60 Hz 1Ø power supply. Check heater(s) rating plate for electrical rating

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL16 9.3 UHA[S] Series Internal Wiring DiagramBLUEBLACKBLACKORANGEORANGEYELLOWBROWNBLACK

SECTION 9: WIRING179.4 UHA[S] Series Ladder Wiring DiagramNOTE:For field wiring into service junction box, or if any of the original wire supplied wit

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL18 9.5 Electrical Connection to the HeaterNote: Junction box is not provided with heat

SECTION 10: OPERATION AND MAINTENANCE19SECTION 10: OPERATION AND MAINTENANCEInstallation, service, and annual inspection of the heater must be done by

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL20 Figure 10: Automatic Burner Control SequenceFigure 11: Gas Valve for Models UHA[S]

SECTION 10: OPERATION AND MAINTENANCE2110.2.2 Start-Up the Gas Valve (All Gases)10.2.2.1 Check Burner Gas Pressure1. Remove the plug in the outlet (bu

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL22 SECTION 11: USER INSTRUCTIONS11.1 User InstructionsThe UHA[S] Series heaters are fu

SECTION 11: USER INSTRUCTIONS23WARNINGFOR YOUR SAFETYIf you smell gas:1. Open windows.2. DO NOT try to light any appliance.3. DO NOT use electrical sw

© 2008 Roberts-Gordon LLCAll rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form or by any

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL24 SECTION 12: SERVICING12.1 Servicing InstructionsAfter start-up, the heater will req

SECTION 12: SERVICING2512.8 Maintenance ChecklistInstallation Code and Annual Inspections: All installations and service of RAPID™ equipment must be

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL26 Burner Observation WindowMake sure it is clean and free of cracks or holes.Clean an

SECTION 13: TROUBLESHOOTING27SECTION 13: TROUBLESHOOTING13.1 GeneralEnsure proper air flow clearance for axial fan. Open louvers slightly.Replace axia

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL28 13.2 Troubleshooting For Automatic Ignition Burner SystemsIf problems persist, cont

SECTION 13: TROUBLESHOOTING2913.3 Troubleshooting for Flame Supervision SystemNOTE: Minimum flame probe current 1 μA DC. Typical flame probe current 3

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL30 13.4 Troubleshooting for Gas Valves13.5 Troubleshooting for Flue Blower Valve fault

SECTION 14: REPLACEMENT PARTS31SECTION 14: REPLACEMENT PARTSSee warnings and notes on Page 24, Section 12 before removing or replacing parts.Burner Co

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL32 14.2 Burner Compartment14.2.1 Burner InjectorsRemove flexibleair duct from spigotRe

SECTION 14: REPLACEMENT PARTS3314.3 Ignition Electrode and Flame ProbeDescription Part Number Qty.Spark Electrode 90427411 1Automatic Ignition Flame P

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL34 14.4 Heat Exchanger The standard heat exchanger assembly is compossed of multiple t

SECTION 14: REPLACEMENT PARTS3514.6 Flue Blower IT IS IMPORTANT THAT ONLY THE CORRECT FLUE BLOWER SPECIFIED FOR EACH MODEL TYPE IS USED WHEN REPLACING

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL36 14.7 Pressure SwitchPull off 3 way connector. Spring open plastic clips of mounting

SECTION 14: REPLACEMENT PARTS3714.9.1 Fan Removal and Replacement14.9.2 To Replace the Fan Assembly• To replace the fan assembly, reverse the procedur

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL38 SECTION 15: SPECIFICATIONS15.1 Standard (Models 150 - 400) UHA[S] Series Dimension

SECTION 15: SPECIFICATIONS3915.2 General Technical Data Table (All Models)*Do not exceed the maximum length of flue stated or heater may not operate p

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL40

SECTION 16: THE RAPID™ UHA-SERIES WARRANTY41SECTION 16: THE RAPID™ UHA-SERIES WARRANTYRAPID ENGINEERING WILL PAY FOR:Within 24 months from date of pur

TABLE OF FIGURESFigure 1: Installation Clearances and Clearances to Combustibles4Figure 2: Suspension Methods ...

10'(3 m)WARNING© 2007 Roberts-Gordon, LLC www.rapidengineering.com

SECTION 1: HEATER SAFETY1SECTION 1: HEATER SAFETYYour Safety is Important to Us!This symbol is used throughout the manual to notify you of possible fi

RAPID™ UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL2 SECTION 2: INSTALLER RESPONSIBILITYThe installer is responsible for the following:•

SECTION 3: CRITICAL CONSIDERATIONS3SECTION 3: CRITICAL CONSIDERATIONS3.1 Basic InformationUHA[S] heaters have automatic ignition burners for ON/OFF op