Manuals / Friedrich / Household Appliance / Air Conditioner

Friedrich 2009, 2008 service manual Introduction, Typical Unit Components

Models: 2009 2008

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Introduction

This service manual is designed to be used in conjunction with the installation manuals provided with each air conditioning system component.

This service manual was written to assist the professional RAC service technician to quickly and accurately diagnose and repair malfunctions.

This manual will deal with subjects in a general nature. (i.e. all text will not pertain to all models).

TYPICAL UNIT COMPONENTS

Fresh Air	Compressor
Capillary Tube		Liquid Filter Driers
Reversing Valve		Condenser Coil
(some models)		Condenser Coil
(some models)
Front Cover			Discharge Air
System Switches				Outdoor Grille
Evaporator Coil

		Sleeve
		Sleeve
Return Air Grille/Filter
Blower Wheel
Blower Motor	Basepan	Condenser Fan Blade
	Basepan

IMPORTANT: It will be necessary for you to accurately identify the unit you are servicing, so you can be certain of a proper diagnosis and repair (See Unit Identification on page 6).

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Friedrich 2009, 2008 service manual Introduction, Typical Unit Components

Contents

Warmer Power Money Saver Set Hr ModelsPower Timer4200 N. Pan Am Expressway · San Antonio, Texas TECHNICAL SUPPORT CONTACT INFORMATIONFRIEDRICH AIR CONDITIONING CO Post Office Box 1540 · San Antonio, TexasTable Of Contents PERSONAL INJURY OR DEATH HAZARDS IMPORTANT SAFETY INFORMATIONELECTRICAL HAZARDS MECHANICAL HAZARDS REFRIGERATION SYSTEM HAZARDSFIRE DAMAGE HAZARDS PROPERTY DAMAGE HAZARDSWATER DAMAGE HAZARDS TYPICAL UNIT COMPONENTS Introduction1st Digit - Function S S 08 L 1 0 EUnit Identification Model Number Code RAC Serial Number Identification GuideModel Chassis Specifications for 2009, 2008 modelsElectrical Characteristics 60 Hertz EER COPMinimum installation information / sleeve dimensionsCircuit Rating / Breaker Window Mounting KitsPERFORMANCE DATA for 2009, 2008 models FIRE HAZARD electrical DATAHACR Heating Air Conditioning and Refrigeration ELECTRIC SHOCK HAZARDUnit placement Make sure the wiring is adequate for your unitTest the power cord Keep the filter cleanTo set mode of operation To adjust fan speedTo set the timer To start unitTo adjust fan speed To adjust temperatureTo set the hour clock To set the timerTo start unit To adjust temperatureTo adjust fan speed To set the timerTo adjust fan speed How to use the remote control XQ modelsTo adjust temperature setting To set the timerQuietMaster / Twintemp models How to operate the Friedrich room air conditionerTemperature control Money Saver switchFunction Control EQ08 modelsFunction Control Checking Room Temperature1.Activate Error Code Mode by pressing the “TIMER ON/ OFF” button on XQ models. LED for the “TIMER ON/ OFF” will flash 1 bps while Error Code Mode is active. Pressing the “TEMP/HR ” button will display 00. Consecutive presses will scroll through all error codes logged. Press the “TEMP/HR ” button to see the reverse order of all error codes logged. When the end of logged error codes is reached the temperature set point will appear ELECTRIC SHOCK HAZARD TESTING THE ROTARY CONTROL SWITCHESKS, KM, SL Models See Figure ELECTRICAL COMPONENTS FUNCTIONAL COMPONENT DEFINITIONS“EQ08” SYSTEM CONTROL SWITCH - TEST MECHANICAL COMPONENTSELECTRIC SHOCK HAZARD COMPONENTS TESTINGTHERMOSTAT ADJUSTMENT THERMOSTAT “EQ08” Models See FigureELECTRIC SHOCK HAZARD COMPONENTS TESTING ContinuedRESISTOR Heat Anticipator See Figure DEFROST THERMOSTAT Heat Pump Models OnlyCOMPONENTS TESTING Continued CAPACITORSCapacitor Check with Capacitor Analyzer Capacitor ConnectionsHEATING ELEMENT Heat Pump Models COMPONENTS TESTING ContinuedTESTING THE HEATING ELEMENT HEATING ELEMENT See FigureMode Control OPERATING SEQUENCE / CHARACTERISTICS AND FEATURESCompressor Time Delay 180 seconds Return Air Temperature SensorREFRIGERATION SEQUENCE OF OPERATION EQUIPMENT MUST BE CAPABLE OF SEALED REFRIGERATION SYSTEM REPAIRSRefrigerant Charging EQUIPMENT REQUIREDBURN HAZARD Method Of Charging / RepairsBURN HAZARD FREEZE HAZARDHIGH PRESSURE HAZARD Undercharged Refrigerant SystemsOvercharged Refrigerant Systems ELECTRIC SHOCK HAZARDRestricted Refrigerant System Capillary Tube Systems HERMETIC COMPONENTS CHECKMETERING DEVICE CHECK VALVEELECTRIC SHOCK HAZARD REVERSING VALVE DESCRIPTION/OPERATIONHIGH PRESSURE HAZARD TESTING THE COILCHECKING THE REVERSING VALVE ELECTRIC SHOCK HAZARDHIGH PRESSURE HAZARD Procedure For Changing Reversing ValveTouch Test in Heating/Cooling Cycle BURN HAZARDLocked Rotor Voltage L.R.V. Test Single Phase ConnectionsSingle Phase Running and L.R.A. Test COMPRESSOR CHECKSCHECKING COMPRESSOR EFFICIENCY Single Phase Resistance TestELECTRIC SHOCK HAZARD GROUND TESTRISK OF ELECTRIC SHOCK COMPRESSOR REPLACEMENTRecommended procedure for compressor replacement HIGH TEMPERATURESHIGH PRESSURE HAZARD ELECTRIC SHOCK HAZARDEXPLOSION HAZARD ELECTRIC SHOCK HAZARD ROUTINE MAINTENANCEEXCESSIVE WEIGHT HAZARD BLOWER WHEEL / HOUSING / CONDENSER FAN / SHROUDROUTINE MAINTENANCE Continued Possible Cause ProblemProblem ProblemProblem ProblemProblem ProblemProblem ProblemProblem ProblemProblem ProblemProblem ProblemPossible Cause ProblemProblem ProblemPossible Cause TROUBLESHOOTING CHART - HEATPUMPProblem REFRIGERANT SYSTEM DIAGNOSIS - COOLING CYCLETROUBLESHOOTING CHART - HEATPUMP ELECTRICAL TROUBLESHOOTING CHART - HEAT PUMPREFRIGERANT SYSTEM DIAGNOSIS - HEATING CYCLE HEAT PUMPNORMAL FUNCTION OF VALVE TEMPERATURE OF VALVE BODYPOSSIBLE CAUSES CORRECTIONSXQ05L10A-C XQ06L10A-C XQ08L10A-B,A-E ELECTRONIC CONTROL COOL ONLY MODELSXQ10L10A-C XQ12L10A-B,A-C ELECTRONIC CONTROL COOL ONLY MODELS ELECTROMECHANICAL CONTROL COOL ONLY MODELS ELECTROMECHANICAL CONTROL COOL ONLY MODELS SL28L30-D,-E SL36L30A-D,A-EPage COOL WITH ELECTRIC HEAT MODELS ELECTROMECHANICAL CONTROLES12L33-D,-E ES16L33-C,-D EM18L34-C EM24L34-B ELECTROMECHANICAL CONTROL COOL WITH ELECTRIC HEAT MODELS EL36L35A-D,A-EYS09L10-F,-G ELECTROMECHANICAL CONTROL HEAT PUMP ONLY MODELSYS13L33-D,-E YM18L34-D,-E HEAT PUMP WITH ELECTRIC HEAT MODELSELECTROMECHANICAL CONTROL ELECTROMECHANICAL CONTROL HEAT PUMP WITH ELECTRIC HEAT MODELS YL24L35-E,-FFORM FOR ROOM AIR CONDITIONERS INSTRUCTIONS FOR USING COOLING LOAD ESTIMATEAHAM PUB. NO. RAC-1 FACTORS COOLING LOAD ESTIMATE FORMHEAT GAIN FROM QUANTITYFollowing is an example using the heat load form HEAT LOAD FORMWINDOWS & DOORS Area, sq. ft HEATING LOAD FORM FRIEDRICH ROOM UNIT HEAT PUMPSINFILTRATION - WINDOWS & DOORS AVG FIRST YEAR ROOM AIR CONDITIONERS LIMITED WARRANTYSECOND THROUGH FIFTH YEAR Page 4200 N. Pan Am Expressway · San Antonio, Texas TECHNICAL SUPPORT CONTACT INFORMATIONFRIEDRICH AIR CONDITIONING CO Post Office Box 1540 · San Antonio, TexasPost Office Box 1540 · San Antonio, Texas FRIEDRICH AIR CONDITIONING CORAC-ServMan