Roberts Gorden Combat 175 Service Manual

WARNINGFOR YOUR SAFETYIf you smell gas: 1. Open windows. 2. DO NOT try to light any appliance. 3. DO NOT use electrical switches. 4. DO NOT us

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL2 of 59Figure 1: UHA[T][M][X][S]150 - 250 Label Placement*For separated combustion u

SECTION 1: HEATER SAFETY 3 of 59Figure 2: UHA[T][M][X][S]300 - 400 Label Placement*For separated combustion units only.**For modulating units only.Des

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL4 of 59SECTION 2: INSTALLER RESPONSIBILITYThe installer is responsible for the follo

SECTION 3: CRITICAL CONSIDERATIONS 5 of 59SECTION 3: CRITICAL CONSIDERATIONS3.1 Basic InformationUHA[T][M][X][S] heaters have automatic ignition burne

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL6 of 59SECTION 4: CLEARANCES TO COMBUSTIBLES4.1 Required Clearances to CombustiblesC

SECTION 4: CLEARANCES TO COMBUSTIBLES 7 of 59Figure 3: Installation Clearances and Clearances to Combustibles6"(15 cm)31"**(79 cm)3"(8

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL8 of 59SECTION 5: NATIONAL STANDARDS AND APPLICABLE CODES5.1 Gas CodesThe type of ga

SECTION 6: HEATER INSTALLATION 9 of 59SECTION 6: HEATER INSTALLATION 6.1 General Heaters are designed for installation above 6' (1.8 m). These h

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL10 of 59SECTION 7: VENTING7.1 VentingThis heater must be vented in accordance with t

SECTION 7: VENTING 11 of 59concentric vent box and a concentric vent/air intake pipe penetrates the wall or roof. See Page 15, Figure 9 and Page 16, F

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL12 of 59dampers and any other gas-burning piece(s) of equipment to their previous co

SECTION 7: VENTING 13 of 59Figure 6: Standard Vented Heater - Vertical and Horizontal Vent TerminationVentFlashing(By Others)Vent TerminationVerticalO

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL14 of 59Figure 7: Standard Vented Heater - Common Vertical Vent TerminationRequirem

SECTION 7: VENTING 15 of 59Figure 8: Separated Combustion Heater - Vertical and Horizontal Vent TerminationFigure 9: Concentric Vent BoxModel **Vent D

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL16 of 59Figure 10: Concentric Vertical and Horizontal Vent Termination - Separated C

SECTION 8: AIR SUPPLY 17 of 59SECTION 8: AIR SUPPLY8.1 Separated Combustion InstallationWhen installed as a separated combustion heater (UHA[T][M][X]S

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL18 of 59SECTION 9: GAS PIPINGA gas meter is connected to the service pipe by the gas

SECTION 9: GAS PIPING 19 of 59Figure 11: Gas ConnectionGas Shut-off ValveDrip LegCapUnionConnectionOption B:Medium or HeavyGauge PipeGas ConnectorOpti

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL20 of 59SECTION 10: WIRINGAll heater models require constant 120 V / 1Ø / 60 Hz powe

SECTION 10: WIRING 21 of 5910.2 Low Voltage Thermostat for Models UHA[T][M][X][S] 150-400NOTE: Models 300-400 have two axial fans.NOTE: Electrical sup

AVERTISSEMENTPOUR VOTRE SECURITESi vous sentez une odeur de gaz:1. Ouvrir les fenêtres.2. N’essayer pas d’allumer un appareil.3. N’utiliser pas d’int

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL22 of 5910.3 UHA[X][S] Series Internal Wiring Diagram for Single Stage Gas ValvesNOT

SECTION 10: WIRING 23 of 5910.4 UHA[X][S] Series Ladder Wiring Diagram for Single Stage Gas ValvesNOTE:For field wiring into service junction box, or

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL24 of 5910.5 UHA[T][X][S] Series Internal Wiring Diagram for Two Stage Gas Valves1W2

SECTION 10: WIRING 25 of 5910.6 UHA[T][X][S] Series Ladder Wiring Diagram for Two Stage Gas ValvesHIGHSTAGENOTE:For field wiring into service junction

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL26 of 5910.7 UHA[M][X][S] Series Internal Wiring Diagram for Modulating Gas ValvesNO

SECTION 10: WIRING 27 of 5910.8 UHA[M][X][S] Series Ladder Diagram for Modulating Gas ValvesNOTE:For field wiring into service junction box, or if any

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL28 of 5910.9 Electrical Connection to the HeaterNote: Junction box is not provided w

SECTION 11: OPERATION AND MAINTENANCE 29 of 59SECTION 11: OPERATION AND MAINTENANCERead this manual carefully before installation, operation, or servi

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL30 of 5911.2 Begin Start-Up 11.2.1 Before Operating the HeaterTo ensure that all

SECTION 11: OPERATION AND MAINTENANCE 31 of 59Figure 13: Single Stage Gas Valve for Models UHA[X][S] 150 - 400Figure 14: Two Stage Gas Valve for Model

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL32 of 59Figure 15: Modulating Gas Valve for Models UHA[M][X][S] 150 - 400Description

SECTION 11: OPERATION AND MAINTENANCE 33 of 5911.2.2 Start-Up the Gas Valve (All Gases)11.2.2.1 Check Burner Gas Pressure (Single Stage)1. Remove the

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL34 of 5911.3 Pressure SwitchThe pressure switch is factory pre-set for each model an

SECTION 12: USER INSTRUCTIONS 35 of 59SECTION 12: USER INSTRUCTIONSThe UHA[T][M][X][S] Series heaters are fully automatic and operate from the externa

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL36 of 59Figure 16: LED Diagnostic CodesLED INDICATION FAULT MODESlow Flash Normal Op

SECTION 13: SERVICING 37 of 59SECTION 13: SERVICING13.1 Servicing InstructionsAfter start-up, the heater will require maintenance to be carried out, a

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL38 of 59and electrical supply. Remove the fan(s) and use a small brush or duster to

SECTION 13: SERVICING 39 of 59Vent Pipe/Terminals Venting must be intact. Using a flashlight, look for obstructions, cracks on the pipe, gaps in the s

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL40 of 59Silicone Tubing Ensure tight, secure fit on all pressure fittings at pressur

SECTION 14: TROUBLESHOOTING 41 of 59SECTION 14: TROUBLESHOOTINGCut/Pinch HazardWear protective gear during installation, operation and service.Edges a

© 2014 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

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL42 of 5914.1 General

SECTION 14: TROUBLESHOOTING 43 of 5914.2 Troubleshooting For Automatic Ignition Burner Systems For your safety and optimum heater performance, use onl

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL44 of 5914.3 Troubleshooting for Flame Supervision SystemNOTE: Minimum flame probe c

SECTION 14: TROUBLESHOOTING 45 of 5914.4 Troubleshooting for Gas Valves14.5 Troubleshooting for Flue Blower Valve faulty.Replace with one of correct t

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL46 of 59SECTION 15: REPLACEMENT PARTSSee warnings and important information on Page

SECTION 15: REPLACEMENT PARTS 47 of 5915.2 Burner Compartment for Models UHA[T][M][X][S] 150-40015.2.1 Burner Compartment without Filler Panel for Mod

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL48 of 5915.2.2 Burner Injectors for Models UHA[T][M][X][S] 150-400MODELUHA[T][M][X][

SECTION 15: REPLACEMENT PARTS 49 of 5915.3 Ignition Electrode and Flame Probe for Models UHA[T][M][X][S] 150-400Description Part Number Qty.Spark Elec

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL50 of 5915.4 Heat Exchanger The heat exchanger consists of a four-pass design with 1

SECTION 15: REPLACEMENT PARTS 51 of 5915.6 Flue Blower for Models UHA[T][M][X][S] 150-300 IT IS IMPORTANT THAT ONLY THE CORRECT FLUE BLOWER SPECIFIED

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL52 of 5915.7 Flue Blower for Models UHA[T][M][X][S] 350-400 IT IS IMPORTANT THAT ONL

SECTION 15: REPLACEMENT PARTS 53 of 5915.8 Pressure SwitchPull off 3 way connector. Spring open plastic clips of mounting cradle. Replace with correct

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL54 of 5915.10.1 Fan Removal and Replacement15.10.2 To Replace the Fan AssemblyTo rep

SECTION 16: SPECIFICATIONS 55 of 59SECTION 16: SPECIFICATIONS16.1 Dimension Data for Models UHA[T][M][X][S] 150-250Model UHA[T][M][X][S]150 UHA[T][M][

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL56 of 5916.2 General Technical Data Table*Do not exceed the maximum length of flue s

SECTION 16: SPECIFICATIONS 57 of 5916.4 Dimension Data for Models UHA[T][M][X][S] 300-400

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL58 of 5916.5 General Technical Data Table*Do not exceed the maximum length of flue s

SECTION 17: THE ROBERTS GORDON® UHA-SERIES WARRANTY 59 of 59SECTION 17: THE ROBERTS GORDON® UHA-SERIES WARRANTYROBERTS-GORDON LLC WILL PAY FOR:Within

TABLE OF FIGURESFigure 1: UHA[T][M][X][S]150 - 250 Label Placement ...2Figure 2: UHA[T][M][X][S]300 - 400 Label Placement ...3Fi

SECTION 1: HEATER SAFETY 1 of 59SECTION 1: HEATER SAFETYYour Safety is Important to Us! This symbol is used throughout the manual to notify you of po