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Friedrich R410A Electrical Troubleshooting Chart Heat Pump, Heat Pump Mode, Replace Solenoid Coil

Models: R410A

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ELECTRICAL TROUBLESHOOTING CHART

HEAT PUMP

HEAT PUMP MODE

SYSTEM COOLS WHEN

HEATING IS DESIRED.

Is Line Voltage

Present at

Solenoid Valve?

YES

Is Selector Switch

set for Heat?

Is the Solenoid

Coil Good?

Replace Solenoid Coil

YES

Reversing Valve Stuck

YES

Replace Reversing Valve

Page 39

Image 39

Friedrich R410A manual Electrical Troubleshooting Chart Heat Pump, Heat Pump Mode, System Cools When Heating Is Desired

Contents

A Series Electronic Controls Single Package Vertical Air Conditioning SystemL-BSufﬁ x, R410A Models 9-18K24KTable of Contents NOTICE IMPORTANT SAFETY INFORMATIONPERSONAL INJURY OR DEATH HAZARDS ELECTRICAL HAZARDSMECHANICAL HAZARDS REFRIGERATION SYSTEM HAZARDSWATER DAMAGE HAZARDS INTRODUCTIONPROPERTY DAMAGE HAZARDS FIRE DAMAGE HAZARDSMODEL IDENTIﬁCATION GUIDE 00001SampleNameplateseeyourchassis nameplate VPAK SERIAL NUMBER IDENTIFICATION GUIDEELECTRICAL DATA NOTICEELECTRICAL REQUIREMENTS ELECTRIC SHOCK HAZARDELECTRICAL DATA Chassis Speciﬁ cationsFor VPAK Cool with Electric Heat 24K For VPAK Heat Pumps 24KModel # TECHNICAL SERVICE DATA Cooling Performance DataExtended Cooling Performance Data Model #ELECTRONIC CONTROL BOARD FEATURES Condition Compressor Heat Heat / Cool UnitsHeat Mode in Cool with Electric Heat Units Heat Pump With Electric Heat OperationRoomAirSamplingFeature Cooling Fan DelayHeating Fan Delay Fan Speed Change DelayFigure 1 Interface Connector Location Connecting a Remote Wall ThermostatRemote Wall Thermostat Low Voltage Interface ConnectionsServicing/ChassisQuickChangeouts SERVICEREMOTE WALL THERMOSTAT LOCATION WarrantyGround Air Intake VPAK 9-18KBTU UNITS COMPONENTS IDENTIFICATIONFront Side Right Side Left and Front Sides Left and Back SidesRight Side Condenser VPAK 24K BTU UNITS COMPONENTS IDENTIFICATIONAir Intake Front Side Left and Back SidesProblem ERROR CODES AND ALARM STATUSCheck Error Codes ErrorDiagnostic Service Module COMPONENTS TESTINGTesting the Diagnostic Service Module Testing the Electronic Control Board2.Test the 10 amp/250 VAC fuse for continuity Capacitor Connections COMPONENTS TESTING ContinuedCAPACITORS Capacitor Check with Capacitor AnalyzerCOMPONENTS TESTING CONTINUED Determining the Indoor CFM: Chart A – CFM External Static PressureChecking External Static Pressure Ductwork Preparation Explanation of chartsChart B – Correction Multipliers Indoor Airflow DataRefrigeration Assembly REFRIGERATION SEQUENCE OF OPERATIONRefrigerant Charging SEALED REFRIGERATION SYSTEM REPAIRSFREEZE HAZARD Method Of Charging / RepairsUndercharged Refrigerant Systems BURN HAZARDRestricted Refrigerant System Overcharged Refrigerant SystemsCapillary Tube Systems HERMETIC COMPONENTS CHECKMETERING DEVICE CHECK VALVEELECTRIC SHOCK HAZARD TESTING THE COILREVERSING VALVE DESCRIPTION/OPERATION CHECKING THE REVERSING VALVEProcedure For Changing Reversing Valve NOTICETouch Test in Heating/Cooling Cycle Locked Rotor Voltage L.R.V. Test Single Phase ConnectionsSingle Phase Running and L.R.A. Test COMPRESSOR CHECKSBURN HAZARD Single Phase Resistance TestExternal Overload VPAK 9, 12, 18 K Btus Internal Overload VPAK 24 K BtusCOMPRESSOR REPLACEMENT Recommended procedure for compressor replacementNOTICE ROUTINE MAINTENANCE HOW IS ALL OF THE INSTALLATION? GOODSizing Guide THERMISTORS’ RESISTANCE VALUES This Table Applies to All ThermistorsFAHRENHEIT check for Error ELECTRICAL TROUBLESHOOTING CHART - COOLING9K BTU, 12K BTU, & 18K BTU NO COOLING OPERATIONelectronics control diagnostics on page 24K BTUELECTRICAL TROUBLESHOOTING CHART - COOLING Before continuing check for Error Codes, seeIs Selector Switch set for Heat? ELECTRICAL TROUBLESHOOTING CHART HEAT PUMPSYSTEM COOLS WHEN HEATING IS DESIRED HEAT PUMP MODEREFRIGERANT SYSTEM DIAGNOSIS COOLING TROUBLESHOOTING CHART - COOLINGTROUBLESHOOTING CHART - HEATING HEAT PUMP PROBLEMHEAT PUMP WITH ELECTRIC HEAT REMOTE WALL THERMOSTAT WIRING DIAGRAMSCOOL WITH ELECTRIC HEAT C GH GL B Y W R RC GH GL O/B Y WGH GL B Y WIRING DIAGRAM COOL EH 2.5KW, 3.4KW, 5.0KWLEGEND FOR TSTAT WIRING HARNESS VEA 9K12K/18K92160301 WIRING DIAGRAM HEAT PUMP EH 2.5KW, 3.4KW, 5.0KWLEGEND FOR TSTAT WIRING HARNESS VHA 9K/12K/18KCOOL WITH ELECTRIC HEAT 92160601C S R 92160701 LEGEND FOR TSTAT WIRING HARNESSCOOL WITH ELECTRIC HEAT 7.5KW, 10.0KWVHA 24K WIRING DIAGRAM HEAT PUMP EHLEGEND FOR TSTAT WIRING HARNESS 2.5KW, 3.4KW, 5.0KWVHA 24K WIRING DIAGRAM HEAT PUMP EHLEGEND FOR TSTAT WIRING HARNESS 7.5KW, 10.0KWVPAL2 ACCESSORIESVPAWP1-8 VPAWP1-14LIMITED WARRANTY VERT-I-PAK A SERIESSINGLE PACKAGE VERTICAL AIR CONDITIONERS 2011 VPAK 9K-18KBTU/h Models 8 4 7 1 9 103 5 11 2011 VPAK 9K-18KBTU/h Models 16 17 15 13 14 1225 26 16 28 2011 VPAK 9K-18KBTU/h Models2011 VPAK 9K-18KBTU/h Models 20 19 18 22 219K-18KBTU/h Models 2011 VPAK Parts List9 8 3 2 4 1 6 52011 VPAK 24K BTU/h Models 14 10 16 15 23 13 12 22 11 21 19 202011 VPAK 24K BTU/h Models 2011 VPAK 24K BTU/h Models 24 26 30 29 28 25 142011 VPAK 24K BTU/h Models 33 31 322011 VPAK Parts List 24K BTU/h ModelsFRIEDRICH AIR CONDITIONING CO CUSTOMER SATISFACTION and QUALITY ASSURANCEFRIEDRICH AUTHORIZED PARTS DEPOTS TECHNICAL SUPPORT CONTACT INFORMATIONFRIEDRICH AIR CONDITIONING CO Printed in the U.S.AVPK-ServMan-L