Friedrich ZoneAire Premier PDH09K3SGR3 Service Manual
Packaged terminal air conditioners & heat pumps
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Summary of Contents for Friedrich ZoneAire Premier PDH09K3SGR3
- Page 1 ZoneAire Premier R-32 Series ® PTAC Packaged Terminal Air Conditioners & Heat Pumps Standard Chassis Models (R-32 Refrigerant) 230 Volt PDH09K3SGR3, PDH12K3SGR3 265 Volt PDH09R3SGR3, PDH12R3SGR3 THE EXPERTS IN ROOM AIR CONDITIONING 94142000_00...
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Page 2: Table Of Contents
TABLE OF CONTENTS Table of Contents Important safety information Personal injury or death hazards Model Number Reference Guide Serial Number Reference Guide SPECIFICATIONS General Specifications Electrical Data OPERATION Air Flow Selection and Adjustment Function and Control General Knowledge Sequence Of Refrigeration Refrigerant System Diagram Auxillary Controls Routine Maintenance... -
Page 3: Important Safety Information
Installation procedures are not given in this manual. They are given in the Installation/ Operation manual which can be aquired on the Friedrich website. Click the Link or scan the QR code to be directed to the Professional page where you can locate our technical literature. - Page 4 CAUTION: Do Not Operate Equipment During Active Stages Of Construction To ensure proper operation, Friedrich requires that all equipment is not operated during active construction phases. This includes active stages of completing framing, drywalling, spackling, sanding, painting, flooring, and moulding in the equipment’s designated conditioning space. The use of this equipment during construction could result in premature failure of the components and/or system and is in violation of our standard warranty guidelines.
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Page 5: Personal Injury Or Death Hazards
INTRODUCTION Personal injury or death hazards WARNING AVERTISSEMENT ADVERTENCIA Do not remove, disable Ne pas supprime, désacti- No eliminar, desactivar o SAFETY or bypass this unit’s ver ou contourner cette pasar por alto los dispositi- safety devices. Doing so l´unité des dispositifs de vos de seguridad de la may cause fire, injuries, sécurité, faire vous risque-... - Page 6 INTRODUCTION Personal Injury Or Death Hazards • REFRIGERATION SYSTEM REPAIR HAZARDS: • Use approved standard refrigerant recovering procedures and equipment to relieve high pressure before opening system for repair. • Do not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor to moderate injury.
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Page 7: Model Number Reference Guide
This service manual was written to assist the professional service technician to quickly and accurately diagnose and repair malfunctions. Installation procedures are not given in this manual. They are given in the Installation and Operation Manual which can be aquired on the Friedrich website (www.friedrich.com). -
Page 8: Specifications
SPECIFICATIONS General Specifications PTAC Heat Pump models PDH09K3SGR3 PDH12K3SGR3 PDH09R3SGR3 PDH12R3SGR3 PERFORMANCE DATA: Cooling Btu 9700/9400 12100/11900 9800 12000 Cooling Watts 800/780 1040/1000 1030 Energy Efficient Ratio, Eer 12.1/12.1 11.6/11.8 12.1 11.6 Reverse Heating Btu 8500/8200 10900/10700 8600 10900 Heating Watts 690/670 940/900 3.6/3.6... - Page 9 SPECIFICATIONS Coil tube sheets PDXWS Wall Sleeve Dimensions Outdoor orifice 16” H x 42” x W x 13 ” D Wire screen Front Cover Dimensions 16” H x 42” x W x 7 ” D Discharge grille Cut-out Dimensions x 42 Accessory outdoor grille...
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Page 10: Electrical Data
Make sure your electrical receptacle has the same configuration as your air conditioner’s plug. If different, consult a Licensed Electrician. All Friedrich 230/208V PTAC units are shipped from the factory with a Leakage Current Detection Interrupter (LCDI) Do not use plug adapters. - Page 11 SPECIFICATIONS Electrical Data MODEL HEATER Kw POWER CORD KIT VOLTAGE AMPERAGE RECEPTACLE PXPC23015A 208/230 NEMA 6-15r PDH09K PXPC23020A (STD) 208/230 NEMA 6-20r PDH12K PXPC23030 208/230 NEMA 6-30r PXPC26515 NEMA 7-15r PDH09R PXPC26520A (STD) NEMA 7-20r PDH12R PXPC26530 NEMA 7-30r Electrical Wiring Grounding For safety and protection, the unit is grounded through the service cord plug or through separate ground wire provided on hard wired units.
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Page 12: Operation
OPERATION Air Flow Selection and Adjustment VENTILATION CONTROL The ventilation control lever is located at left side of unit, behind front panel. NOTE:The vent door shipping hardware must be removed before using vent control lever. See Installation Instructions. Open position Close position When set at close POSITION, only the air inside the room is circulated and filtered. -
Page 13: Function And Control
OPERATION Function and Control Auxiliary dip switch controls are located behind front panel, through an opening below the control panel. To access, remove front panel. Dip switches are accessible without opening the control box. Unit must be powered OFF to Dip Switches effectively change their status. - Page 14 OPERATION OPERATION Function and Control IMPORTANT : When unit is first started,high humidity conditions can cause condensation to form IMPORTANT : When unit is first started, high humidity conditions can cause condensation to form on discharge grille.Keep on discharge grille.Keep doors and windows closed.Room humidity will decrease and moisture will evaporate.
- Page 15 OPERATION Function and Control Ambient temperature display: dual-8 displays AA, after exit allocation mode, ambient temperature will display under heating and cooling mode. In below situation: preset temperature will display 10S, then display ambient temperature. 1. Press mode button. (mode button includes: cooling mode button, heating mode button) 2.
- Page 16 OPERATION Function and Control Heating mode Under heating mode, heating mode LED and set fan speed LED is on. Dual 8 displays set temperature. If select displaying ambient temperature in additional function setting, the dual 8 will display as the display way described in this mode. The set temperature and fan speed will keep the same when switching modes.
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Page 17: General Knowledge Sequence Of Refrigeration
OPERATION General Knowledge Sequence Of Refrigeration A good understanding of the basic operation of the refrigeration system is essential for the service technician. Without this understanding, accurate troubleshooting of refrigeration system problems will be more difficult and time consuming, if not (in some cases) entirely impossible. -
Page 18: Refrigerant System Diagram
OPERATION Refrigerant System Diagram (1)Cooling + Heat Pump + Auxiliary Electric Heater CENTRIFUGAL AXIAL FAN OR CROSS FAN COOLED AIR HOT DISCHARGED AIR HOT AIR COOLED AIR COMPRESSOR INDOOR COILS OUTDOOR COILS ELECTRIC HEATER CAPILLARY COOLING MODE REFRIGERANT FLOW DIRECTION NOTES: HEATING MODE (2) Cooling + Electric Heater... -
Page 19: Auxillary Controls
Auxillary Controls Install Thermostat All PZ model PTAC units are factory configured to be controlled by either the WARNING chassis mounted Smart Center or a 24v remote wall mounted thermostat. The thermostat may be auto or manual changeover as long as the control configuration matches that of the PTAC unit. - Page 20 Auxillary Controls TERMINAL CONNECTIONS The wall thermostat terminal block is located behind the front panel and is easily accessible on front of control panel. Energy Management (24VA C in) Common STATUS TYPICAL WALL THERMOSTAT See Note 1 Energy Management Terminal Connections See Note 2 Wall Thermostat Terminal Connections...
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Page 21: Routine Maintenance
Routine Maintenance Coils & Chassis NOTE: Do not use a caustic cleaning agent on coils or base pan. Use a biodegradable cleaning agent and degreaser. The use of harsh cleaning materials may lead to deterioration of the aluminum fins or the coil end plates. The indoor coil and outdoor coils and base pan should be inspected periodically (annually or semi-annually) and cleaned of all debris (lint, dirt, leaves, paper, etc.) as necessary. -
Page 22: Troubleshooting
TROUBLESHOOTING Basic Troubleshooting SYMTOM POSSIBLE CAUSES SOLUTIONS Unit Does Not • Unit may have become unplugged. • Check that plug is plugged securely in wall receptacle. Start • Fuse may have blown. • Note : Plug has a test/reset button on it. Make sure that •... -
Page 23: Diagnostic Codes
TROUBLESHOOTING Diagnostic Codes STATUS LED Indicator Definitions INTELLIGENT SELF--CHECKING CONTROL Your PTAC has a computer board that continuously checks key components of the unit to ensure they are operating properly. Under normal operation, unit status indicator (STATUS,on main PCB), light is steadily ON. If there is a major problem,the unit will shut down and display a diagnostic failure code on the unit’s display. - Page 24 TROUBLESHOOTING Diagnostic Codes Diag Status Description Possible Causes Solutions Code Indicator 1. Indoor ambient temperature 1. Check wiring connections. Low temperature prevention is lower than 40°f (5°c) 2. Check sensor resistance. (See Dual-8 protection. Unit will operate in continuously. appendix for temperature sensor displays “fp”.
- Page 25 TROUBLESHOOTING Diagnostic Codes Diag Status Description Possible Causes Solutions Code Indicator Frost prevention (heat pump). The compressor & outdoor fan will stop. The indoor fan will operate normally. If calling for Status heat; 15 seconds later the electric indicator will heaters will be energized.
- Page 26 TROUBLESHOOTING Diagnostic Codes Diag Status Description Possible Causes Solutions Code Indicator Unbalanced Electric Current 1. Abnormal operation of Check for proper operation of detected between Null line and compressor or fan motors. compressor and fan motors. live line. 2. Transformer damaged. Check transformers.
- Page 27 2. Troubleshooting for refrigerant insufficient protection F0 TROUBLESHOOTING Main check points: (1) compressor (2) refrigerant (3) filth blockage of air inlet/outlet, heat exchanger or system (4) main board F0 Diagnosic Code Flow Chart Detection procedure in details is as below : Start the troubleshooting for low refrigerant protection...
- Page 28 3. Troubleshooting for overload protection TROUBLESHOOTING Main check points: (1) compressor (2) refrigerant (3) filth blockage for air inlet/outlet, heat exchanger or system (4) fan (5) main board H3 Diagnosic Code Flow Chart Detection procedure in details is as below : Start Heat exchanger is too dirty, Clean the heat exchanger...
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Page 29: Component Testing
COMPONENT TESTING Hermetic Components Check WARNING WARNING BURN HAZARD CUT/SEVER HAZARD Proper safety procedures must be followed, Be careful with the sharp edges and corners. and proper protective clothing must be worn when working with a torch. Wear protective clothing and gloves, etc. Failure to follow these procedures could Failure to do so could result in serious injury. -
Page 30: Reversing Valve Description And Operation
COMPONENT TESTING Reversing Valve Description And Operation The Reversing Valve controls the direction of refrigerant flow to the indoor and outdoor coils. It consists of a pressure-operated, main valve and a pilot valve actuated by a solenoid plunger. The solenoid is energized during the heating cycle only. -
Page 31: Testing The Reversing Valve Solenoid Coil
COMPONENT TESTING Testing The Reversing Valve Solenoid Coil WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death. The solenoid coil is an electromagnetic type coil mounted on the reversing valve and is energized during the operation of the compressor in the heating cycle. -
Page 32: Checking The Reversing Valve
COMPONENT TESTING Checking The Reversing Valve WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants. Failure to follow these procedures could result in serious injury or death. -
Page 33: Touch Test Chart : To Service Reversing Valves
COMPONENT TESTING Touch Test Chart : To Service Reversing Valves NORMAL FUNCTION OF VALVE NOTES: VALVE OPERATING * TEMPERATURE OF VALVE BODY CONDITION ** WARMER THAN VALVE BODY POSSIBLE CAUSES CORRECTIONS Cool Normal Cooling Cool *TVB as (2) as (1) Cool Normal Heating Cool... -
Page 34: Compressor Checks
COMPONENT TESTING Compressor Checks WARNING WARNING ELECTRIC SHOCK HAZARD BURN HAZARD Turn off electric power before service or installation. Proper safety procedures must be followed, All electrical connections and wiring MUST be and proper protective clothing must be worn when working with a torch. the National Electrical Code and all local codes which have jurisdiction. - Page 35 COMPONENT TESTING Compressor Checks WARNING WARNING HIGH PRESSURE HAZARD ELECTRIC SHOCK HAZARD Sealed Refrigeration System contains refrigerant Turn off electric power before service or and oil under high pressure. installation. Extreme care must be used, if it becomes necessary to work on equipment with Proper safety procedures must be followed, and proper protective clothing must be worn power applied.
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Page 36: Logic Pcb Identification And Testing
COMPONENTS TESTING Logic PCB Identification and Testing Name Voltage Name Voltage Diagnostic Code Status Indicator Compressor. and Indoor Fan Control Voltage Temp Sensors Constant 2.8 vdc Constant 5vdc Display Constant 5 vdc Constant 12vdc Wired wall Controller Compressor 3vdc signal Energy Management 4 way valve - energized for heat 3vdc signal... -
Page 37: Power Pcb Identification And Testing
COMPONENTS TESTING 5.2.2 Silk screen on main board 2 Power PCB Identification and Testing Name Voltage Name Voltage Neutral wire interface Compressor. and Indoor Fan Control Voltage Name Name Transformer AC input Constant Unit Constant 5vdc Power Supply Neutral wire interface Needle stand for indoor fan Neutral wire interface Constant 12vdc... -
Page 38: Testing Electric Heat
COMPONENTS TESTING Testing Electric Heat 1. Check Heater power at Molex Plug Use 4 terminal on heat 1 relay should =Unit Power Supply VAC on red white and black wires depending on configuration. White 1.55 kw Red 2.45 kw Black 1 kw 2. -
Page 39: Unit Dissasembly And Component Replacement
Unit Dissasembly and Component Replacement Remove Unit Front Cover 1. Hold front end of filter with hand and then pull the filter upwards to remove it. See figure 501. Figure 501 2. Drag the lower part of panel, pull it outwards and upwards to left, seperate from clasps, and then remove the front panel. -
Page 40: Replace Display Pcb
Unit Dissasembly and Component Replacement Replace Display PCB 2. Remove 5 screws attaching display PCB to cover. See figure 504. Warning: Ensure there are no open flame sources or hot sur- faces that exceed 1200˚F in the work area. Warning: Discharge capacitors in a way that won’t cause any spark. -
Page 41: Replace Logic Pcb
Unit Dissasembly and Component Replacement Replace Logic PCB 5. Remove Logic PCB cover. See figure 508. Warning: Ensure there are no open flame sources or hot surfaces that exceed 1200˚F in the work area. Warning: Discharge capacitors in a way that won’t cause any spark. -
Page 42: Replace Capacitor
Unit Dissasembly and Component Replacement Replace Capacitor Warning: 7. Remove from capacitor strap and disconnect terminals. Ensure there are no open flame sources or hot See Figure 511. surfaces that exceed 1200˚F in the work area. Warning: Discharge capacitors in a way that won’t cause any spark. -
Page 43: Replace Power Pcb
Unit Dissasembly and Component Replacement Replace Power PCB Warning: 11. Rotate Power PCB and seperate from electrical box. See Ensure there are no open flame sources or hot figure 513. surfaces that exceed 1200˚F in the work area. Warning: 12. Remove 2 top screws from Power Board and seperate Discharge capacitors in a way that won’t cause from supporting board. -
Page 44: Replace Indoor Blower, Motor, And Heater Element
Unit Dissasembly and Component Replacement Replace Indoor Blower, Motor, and Heater Element. 5. Remove baffle plate (See Figure 515.) Warning: Ensure there are no open flame sources or hot surfaces that exceed 1200˚F in the work area. Warning: Discharge capacitors in a way that won’t cause any spark. -
Page 45: Replace Indoor Blower, Motor, And Heater Element
Unit Dissasembly and Component Replacement Replace Indoor Blower, Motor, and Heater Element. 7. Loosen blower wheel set screw through slot as shown, screws and slide blower wheel out. See Figure 517. motor Figure 519 8. Remove top panel sub assy. See Figure 520. top panel sub-assy screws Figure 517... -
Page 46: Replace Indoor Blower, Motor, And Heater Element
Unit Dissasembly and Component Replacement Replace Indoor Blower, Motor, and Heater Element. 10. Remove air duct sub assembly. See Figure 522. Blower housing screws screws Figure 522 11. Remove Electric heater. See Figure 523. screws screws electric heater Figure 523... -
Page 47: Replace Outdoor Fan Blade And Motor
Unit Dissasembly and Component Replacement Replace Outdoor Fan blade and motor 5. Remove nut on fan blade. See Figure 526. Warning: 6. Remove Outdoor Fan screws. See Figure 526. Ensure there are no open flame sources or hot surfaces that exceed 1200˚F in the work area. Warning: Discharge capacitors in a way that won’t cause any spark. -
Page 48: General Information
R-32 SEALED SYSTEM REPAIR General Information WARNING: Electrical Shock Hazard Disconnect all power to the unit before starting maintenance. All electrical connections and wiring MUST be installed by a qualified electrician and conform to all codes which have jurisdiction. Failure to do so can result in property damage, severe electrical shock or death. - Page 49 R-32 SEALED SYSTEM REPAIR General Information Warning: No ignition sources: No person carrying out work in relation to a REFRIGERATING SYSTEM which involves exposing any pipe work shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing and disposal, during which refrigerant can possibly be released to the surrounding space.
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Page 50: Required Equipment
R-32 SEALED SYSTEM REPAIR Required Equipment • Multi-meter • Ampmeter • R-32 E.P.A. Approved Refrigerant Recovery System • Vacuum Pump rated for R-32 refrigerant (capable of 300 microns or less vacuum.) • Oxy/ Acetylene torch or similar equipment utilized for brazing. •... -
Page 51: Refrigerant Removal, Recovery, And Evacuation
R-32 SEALED SYSTEM REPAIR Refrigerant Removal, Recovery, and Evacuation NOTE: When accessing the refrigerant in the system to make repairs or for any other purpose, conventional procedures shall be used. However, for FLAMMABLE REFRIGERANTS (R-32 is classified in the A2L group for mildly flammable refigerants) it is important that best practice is followed since flammability is a consideration. -
Page 52: Component Replacement/Brazing
R-32 SEALED SYSTEM REPAIR Component Replacement/Brazing Warning: • Ensure sufficient ventilation at the repair place. Warning: Presence of fire extinguisher. If any hot work is to be conducted on the refrigerating equipment or any associated parts, have a ABC class fire extinguisher available to hand. Warning: No person carrying out work in relation to a REFRIGERATING SYSTEM which involves exposing any pipe work shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. -
Page 53: Refrigerant Charging
R-32 SEALED SYSTEM REPAIRS Refrigerant Charging WARNING: Electrical Shock Hazard Disconnect all power to the unit before starting maintenance. All electrical connections and wiring MUST be installed by a qualified electrician and conform to all codes which have jurisdiction. Failure to do so can result in property damage, severe electrical shock or death. - Page 54 R-32 SEALED SYSTEM REPAIRS Refrigerant Charging CAUTION WARNING FREEZE HAZARD BURN HAZARD Proper safety procedures must be followed, Proper safety procedures must be followed, and proper protective clothing must be worn and proper protective clothing must be worn when working with liquid refrigerant. when working with a torch.
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Page 55: Compressor Replacement
R-32 SEALED SYSTEM REPAIRS Compressor Replacement 1. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing. WARNING 2. Recover all refrigerant from the system though the process tubes. ELECTRIC SHOCK HAZARD Turn off electric power before service or Refer to Refrigerant Removal, Recovery, and Evacuation Section... -
Page 56: Compressor Replacement -Special Procedure In Case Of Compressor Burnout
R-32 SEALED SYSTEM REPAIRS Compressor Replacement -Special Procedure in Case of Compressor Burnout 1. Recover all refrigerant and oil from the system. Refer to Refrigerant Removal, Recovery, and Evacuation Section of this manual. WARNING 2. Remove compressor, capillary tube and filter drier from the system. HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant CAUTION: Seal all openings on the defective compressor... -
Page 57: Wiring Diagrams
WIRING DIAGRAMS POWER L1(L) L2(N) (OPTIONAL) GN(YEGN) JUMP1 (OPTIONAL) PLUG SUBBASE JUMP2 (FOR 265V UNIT) B1 B2 B3 A1 A2 A3 B1 B2 B3 A1 A2 A3 RT2 RT1 θ θ θ θ COMP. COMP COMPAC-L DISP1 CN10 I-HEAT-3 O-HEAT-3 TR-OUT2 ENERGY WALL... -
Page 58: Interactive Parts Viewer
INTERACTIVE PARTS VIEWER All Friedrich Service Parts can be found on our online interactive parts viewer. Please click on the link below: Interactive Parts Viewer For Further Assistence contact Friedrich Technical Support at (1-800-541-6645). -
Page 59: Accessories
ACCESSORIES... - Page 60 ACCESSORIES 23 4 ÿ 67 8 9 7 8 ÿ 3 9 9 7 3 9 ÿ 6 ÿ ÿ 3 9 ÿ 7 ÿ 3 ÿ 3 ÿ 6 ÿ 8 ÿ 7 ÿ 3 ÿ ÿ...
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Page 61: Appendix
Service Manual Appendix: APPENDIX Appendix 1: Reference Sheet of Celsius and Fahrenheit Appendix 1 Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit Celsius display Fahrenheit Celsius Celsius(°C) -
Page 62: Appendix 2 Resistance Table Of Indoor Ambient Temperature Sensor (15K)
Service Manual APPENDIX Appendix 2: List of Resistance for Temperature Sensor Appendix 2 Resistance Table of Indoor Ambient Temperature Sensor (15K) Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor(15K) Temp.( Temp.( Temp.( Temp.( -2.2 138.1 18.75 138.2 3.848 208.4 1.071 -0.4... -
Page 63: Appendix 3 Resistance Table Of Coil Temperature Sensors For Indoor And Outdoor(20K)
Service Manual APPENDIX Resistance Table of Tube Temperature Sensors for Indoor and Outdoor(20K) Appendix 3 Resistance Table of Coil Temperature Sensors for Indoor and Outdoor(20K) Temp.( Temp.( Temp.( Temp.( -2.2 181.4 25.01 138.2 5.13 208.4 1.427 -0.4 171.4 69.8 23.9 4.948 210.2 1.386... -
Page 64: Appendix 4 Resistance Table Of Discharge Temperature Sensor For Outdoor(50K)
APPENDIX Service Manual Appendix 4 Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp.( Temp.( Temp.( Temp.( -20.2 853.5 120.2 18.34 190.4 4.754 -18.4 799.8 51.8 93.42 17.65 192.2 4.609 -16.6 53.6 89.07 123.8 16.99... -
Page 65: Warranty
Friedrich Air Conditioning Company - International Division. Any defective part to be replaced must be made available to FRIEDRICH in exchange for the replacement part. Reasonable proof must be presented to establish the date of install, otherwise the beginning date of this certificate will be considered to be our shipment date plus sixty days. Replacement parts can be new or remanufactured. - Page 66 CUSTOMER SATISFACTION and QUALITY ASSURANCE Friedrich is a conscientious manufacturer, concerned about customer satisfaction, product quality, and controlling warranty costs. As an Authorized Service Provider you play a vital role in these areas. By adhering to the policies and procedures you provide us with vital information on each warranty repair you complete. This information is used to identify product failure trends, initiate corrective action, and improve product quality, thereby further reducing warranty expenses while increasing customer satisfaction levels.
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