Addison UHA 300 Service Manual

P/N AD111101NA 10/13 Rev. CWARNINGFOR YOUR SAFETYIf you smell gas: 1. Open windows. 2. DO NOT try to light any appliance. 3. DO NOT use electri

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

SECTION 1: HEATER SAFETY 3 of 59Figure 2: UHA[X][S]300 - 400 Label Placement*For separated combustion units only.Description Part NumberLogo Label 910

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][X][S] heaters have automatic ignition burners

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

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

5.6 High AltitudeThese heaters are approved (without modifications) for installations up to 2000' (610 m) in US and Canada. Heaters installed abo

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL10 of 59SECTION 6: HEATER INSTALLATION 6.1 General Heaters are designed for installa

SECTION 7: VENTING 11 of 59SECTION 7: VENTINGWARNINGCarbon Monoxide HazardHeaters may be installed vented or unvented.Vented heaters must be vented ou

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL12 of 597.2.1 Standard Vented Heaters (Models UHA[T][X] 150-250 and Models UHA[X] 3

SECTION 7: VENTING 13 of 597.8 Replacing an Existing Heater in a Venting SystemWhen replacing an existing heater in a venting system, the venting syst

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL14 of 59Figure 6: Standard Vented Heater - Vertical and Horizontal Vent TerminationV

SECTION 7: VENTING 15 of 59Figure 7: Standard Vented Heater - Common Vertical Vent TerminationRoof2'(.6 m)MinimumType "B" vent cap (7&

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL16 of 59Figure 8: Separated Combustion Heater - Vertical and Horizontal Vent Termina

SECTION 7: VENTING 17 of 59Figure 10: Concentric Vertical and Horizontal Vent TerminationVent**Air Intake*ConcentricVent BoxVerticalOption10' (3

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL18 of 59SECTION 8: AIR SUPPLYWARNINGExplosion HazardEquipment must have access to un

SECTION 9: GAS PIPING 19 of 59SECTION 9: GAS PIPINGWARNINGFire HazardConnect gas supply according to Figure 11.Do not use gas supply pipe and electric

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL20 of 59Figure 11: Gas ConnectionGas Shut-off ValveDrip LegCapUnionConnectionOption

SECTION 10: WIRING 21 of 59SECTION 10: WIRINGDANGERElectrical Shock HazardDisconnect electric before service.More than one disconnect switch may be re

Addison7050 Overland RoadOrlando, Florida 32810Téléphone: +1.407.292.4400Fax: +1.407.290.1329www.addison-hvac.com© 2013 AddisonManuel d’installation,

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL22 of 5910.2 Low Voltage Thermostat with One Heater for Models UHA[T][X][S] 150-250T

SECTION 10: WIRING 23 of 5910.4 Low Voltage Thermostat with Multiple Heaters (Models UHA[T][X][S]150 - 250)NLGnd.NLGnd.LNGnd.120V-60 HzNOTE: If both t

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL24 of 5910.5 Low Voltage Thermostat with Multiple Heaters (Models UHA[X][S]300 - 400

SECTION 10: WIRING 25 of 5910.6 UHA[X][S] Series Internal Wiring Diagram for Single Stage Gas ValvesNOTE:For field wiring into service junction box, o

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL26 of 5910.7 UHA[X][S] Series Ladder Wiring Diagram for Single Stage Gas ValvesNOTE:

SECTION 10: WIRING 27 of 5910.8 UHA[T][X][S] Series Internal Wiring Diagram for Two Stage Gas Valves1W2HIGH/LOW CONTROLHIGHLOWCOMMONNOTE:For field wir

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL28 of 5910.9 UHA[T][X][S] Series Ladder Wiring Diagram for Two Stage Gas ValvesHIGHS

SECTION 10: WIRING 29 of 5910.10 Electrical Connection to the HeaterNote: Junction box is not provided with heater. Conduit can also be attached dire

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL30 of 59SECTION 11: OPERATION AND MAINTENANCECut/Pinch HazardWear protective gear du

SECTION 11: OPERATION AND MAINTENANCE 31 of 5911.2 Begin Start-Up 11.2.1 Before Operating the HeaterTo ensure that all the controls are in safe wor

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL32 of 59Figure 13: Single Stage Gas Valve for Models UHA[X][S] 150-400½PSI INCONOFFR

SECTION 11: OPERATION AND MAINTENANCE 33 of 5911.2.2 Start-Up the Gas Valve (All Gases)11.2.2.1 Check Burner Gas Pressure1. Remove the plug in the out

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL34 of 59SECTION 12: USER INSTRUCTIONSCut/Pinch HazardWear protective gear during ins

SECTION 13: SERVICING 35 of 59SECTION 13: SERVICINGCut/Pinch HazardWear protective gear during installation, operation and service.Edges are sharp.WAR

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL36 of 59Page 47, Section 15.3.1. Clean any deposits from the main burner which may h

SECTION 13: SERVICING 37 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 MANUAL38 of 59Silicone Tubing Ensure tight, secure fit on all pressure fittings at pressur

SECTION 14: TROUBLESHOOTING 39 of 59SECTION 14: TROUBLESHOOTINGCut/Pinch HazardWear protective gear during installation, operation and service.Edges a

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL40 of 5914.1 General

SECTION 14: TROUBLESHOOTING 41 of 5914.2 Troubleshooting For Automatic Ignition Burner Systems For your safety and optimum heater performance, use onl

© 2013 AddisonAll rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form or by any means - gra

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL42 of 5914.3 Troubleshooting for Flame Supervision SystemNOTE: Minimum flame probe c

SECTION 14: TROUBLESHOOTING 43 of 5914.4 Troubleshooting for Gas Valves14.5 Troubleshooting for Flue BlowerFor your safety and optimum heater performa

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL44 of 59SECTION 15: REPLACEMENT PARTSCarbon Monoxide HazardWARNINGUse only genuine A

SECTION 15: REPLACEMENT PARTS 45 of 5915.2 Burner Compartment for Models UHA[T][X][S] 150-250FillerPanelBurnerAssemblySide View of Burner Compartment

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL46 of 5915.2.2 Remove 4 screws to remove manifold.Ensure gas tight fitting of inject

SECTION 15: REPLACEMENT PARTS 47 of 5915.3 Burner Compartment for Models UHA[X][S] 300-400Remove flexibleair duct from spigot Removeaccess plateRemove

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL48 of 5915.4 Ignition Electrode and Flame Probe for Models UHA[T][X][S] 150-250Descr

SECTION 15: REPLACEMENT PARTS 49 of 5915.5 Ignition Electrode and Flame Probe for Models UHA[X][S] 300-400InshotBurnersInshotBurnersBurner Compartment

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL50 of 5915.6 Heat Exchanger The heat exchanger consists of a four-pass design with 1

SECTION 15: REPLACEMENT PARTS 51 of 5915.8 Flue Blower for Models UHA[T][X][S] 150-175Rear PanelGasketMountingPlateFlue FanVent BoxRear PanelFlue FanV

15.12 Ignition Control... 5415.13 Axial Fan/Guard/Motor Assembly... 5415.1

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL52 of 5915.9 Flue Blower for Models UHA[T][X][S] 200-300 Outlet Gasket(Inside of Rea

SECTION 15: REPLACEMENT PARTS 53 of 5915.10 Flue Blower for Models UHA[X][S] 350-400 Vent BoxOutletGasketFlue BlowerVent BoxscrewsFlueAdapterFlue Adap

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL54 of 5915.11 Pressure SwitchCarbon Monoxide HazardUse correct pressure switch speci

SECTION 15: REPLACEMENT PARTS 55 of 5915.13.1 Fan Removal and ReplacementWARNINGSevere Injury HazardTurn off gas and electrical supply before service.

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL56 of 59SECTION 16: SPECIFICATIONS16.1 Dimension Data for Models UHA[T][X][S] 150-25

SECTION 16: SPECIFICATIONS 57 of 5916.2 General Technical Data TableModelUHA[T][X][S]150UHA[T][X][S]175UHA[T][X][S]200UHA[T][X][S]225UHA[T][X][S]250Fu

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL58 of 5916.4 Dimension Data for Models UHA[X][S] 300-400ABFGHHeater must be supporte

Model UHA[X][S]300 UHA[X][S]350 UHA[X][S]400A in (cm) 52.3 (132.8) 52.3 (132.8) 52.3 (132.8)B in (cm) 43.2 (109.7) 43.2 (109.7) 43.2 (109.7)C in (cm)

UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL60 of 59

SECTION 17: THE ADDISON® UHA-SERIES WARRANTY 61 of 59SECTION 17: THE ADDISON® UHA-SERIES WARRANTYADDISON WILL PAY FOR:Within 24 months from date of pu

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

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