Service/ Parts Manual PTAC FRESHAIRE® Standard Chassis Models 9K PVH09K3FA, PVH09K3FB, PVH09R3FA, PVH09R3FB 12K PVH12K3FA, PVH12K3FB, PVH12R3FA, PVH12R3FB 1 94131400_03
Table of Contents 2 TABLE OF CONTENTS INTRODUCTION Important Safety Information Personal Injury Or Death Hazards Operation of Equipment in During Construction Typical Unit Components and Dimensions Model Number Reference Guide Serial Number Reference Guide Product Features SPECIFICATIONS General Specifications 9-12k Heat Pump Models Electrical Data OPERATION Function and Control Buttons and Display Temperature Definition System Basic Function 1) Cooling Mode 2) Heating Mode 3) Room Freeze
TABLE OF CONTENTS Remove Reversing valve Solenoid R-410A SEALED SYSTEM REPAIR Refrigerant Charging Undercharged Refrigerant Systems Overcharged Refrigerant Systems Restricted Refrigerant System Sealed System Method of Charging/ Repairs COMPONENT TESTING Hermetic Components Check Reversing Valve Description And Operation Testing The Reversing Valve Solenoid Coil Checking The Reversing Valve Touch Test Chart : To Service Reversing Valves Compressor Checks Compressor Replacement Compressor Replac
INTRODUCTION Important Safety Information The information in this manual is intended for use by a qualified technician who is familiar with the safety procedures required for installation and repair, and who is equipped with the proper tools and test instruments required to service this product.
Personal Injury Or Death Hazards INTRODUCTION WARNING SAFETY FIRST Do not remove, disable or bypass this unit’s safety devices. Doing so may cause fire, Doing so may cause fire, injuries, or death. AVERTISSEMENT Ne pas supprime, désactiver ou contourner cette l´unité des dispositifs de sécurité, faire vous risqueriez de provoquer le feu, les blessures ou la mort. ADVERTENCIA No eliminar, desactivar o pasar por alto los dispositivos de seguridad de la unidad.
INTRODUCTION Personal Injury Or Death Hazards 6 • 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. • Be extremely careful when using an oxy-acetylene torch. Direct contact with the torch’s flame or hot surfaces can cause serious burns.
INTRODUCTION Operation of Equipment in During Construction • OPERATION OF EQUIPMENT MUST BE AVOIDED DURING CONSTRUCTION PHASES WHICH WILL PRODUCE AIRBORNE DUST OR CONTAMINTES NEAR OR AROUND AIR INTAKE OPENINGS: • Wood or metal framing; • Drywalling or sheathing, • Spackling or applying joint compound. • Sanding or grinding. • Moulding or trimwork.
INTRODUCTION This service manual is designed to be used in conjunction with the installation and operation manuals provided with each air conditioning system. 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).
Serial Number Reference Guide INTRODUCTION 17 12 M 00001 NUMERIC SEQUENCE FIRST UNIT OF EACH MONTH = 00001 YEAR OF MANUFACTURE 17 = 2017 18 = 2018 19 = 2019 20 = 2020 21 = 2021 22 = 2022 MONTH OF MANUFACTURE 01 = JANUARY 02 = FEBRUARY 03 = MARCH 04 = APRIL 05 = MAY 06 = JUNE 07 = JULY 08 = AUGUST 09 = SEPTEMBER 10 = OCTOBER 11 = NOVEMBER 12 = DECEMBER MANUFACTURING LOCATION Refer to the Chart below for Serial Numbers beginning with an Alpha Sequence PTAC Serial Number Identification Guide SERIAL NUMB
Product Features INTRODUCTION Friedrich PTAC Digital Control and Unit Features The new Friedrich digital PTAC has state of the art features to improve guest comfort, indoor air quality and conserve energy. Through the use of specifically designed control software for the PTAC industry Friedrich has accomplished what other Manufacturer’s have only attempted – a quiet, dependable, affordable and easy to use PTAC. Below is a list of features and their benifit to the owner.
INTRODUCTION Product Features DIGITAL DEFROST THERMOSTAT The PV-Series uses a digital thermostat to accurately monitor the outdoor coil conditions to allow the heat pump to run whenever conditions are correct. Running the PTAC in heat pump mode saves energy and reduces operating costs. The digital thermostat allows maximization of heat pump run time.
SPECIFICATIONS General Specifications 9-12k Heat Pump Models PVH Series Cooling with Heat Pumps Model PVH09K PVH12K PVH09R PVH12R PERFORMANCE DATA: Cooling Capacity Btu 9600/9400 12000/11800 9600 12000 Cooling Capacity Min./Max Btu 6462-12099 7929-17142 6462-12099 7929-17142 Cooling Watts 790/775 1040/1025 800 1040 Energy Efficiency Ratio EER 12.1/12.1 11.5/11.5 12.0 11.5 Reverse Heating Capacity Btu 8200/8500 11600/11800 8500 11800 Reverse Heating Capacity Min./Max.
SPECIFICATIONS 42 16 21 1/2 10 40 Unit:inch Figure 205 ( Chassis Specs) E Figure 206 (Typical Unit Components and Dimensions) 13
SPECIFICATIONS A. Electrical Rating Tables Electrical Data All 230/208 volt units are equipped with LCDI power cords. All 265 volt units are equipped with non-LCDI power cords. NOTE: Use Copper Conductors ONLY. Wire sizes are per NEC, check local codes for overseas applications. Table 1 RECEPTACLES AND FUSE TYPES Voltage 230V 15 Amps Heater Size 2.5 kW 20 265V 30 3.5 kW 5.0 kW 15 20 30 FUSE/CIRCUIT BREAKER 2.5 kW 3.5 kW 5.
SPECIFICATIONS Electrical Data Table 2 Based on Power Cord0 203/208 Electric Heater Rating (Configuration Model Heater kW Power Cord Kit Amperage POWER CORD VOLTAGE BRANCH CKT AMPS MCAVoltage WATTS PDE/PDH07K 2.5 PXPC23015A 230/208 15 PXPCFA23015A 230/208 15 13.9 2500 3.5 PXPC23020A (STD) 230/208 20 PXPCFA23020A 230/208 20 19.9 3600 PDE/PDH09K 2.5 PXPC23015A 230/208 15 PXPCFA23030A 230/208 30 27.5 5000 3.5 PXPC23020A (STD) 230/208 20 PXPCFA26515A 265V 5.0 15 PXPC23030 12.
SPECIFICATIONS Electrical Data Figure 16 Figure 15 TO CHASSIS JUNCTION STRAIGHT CONNECTOR WALL CONNECTION 4.0 IN. JUNCTION BOX GROUND SCREW GROUND WIRE HARNESS EXPOSE WIRES (1.0 IN.) 18.0 IN. TRIM HARNESS TO LENGTH STRIP WIRE ENDS (0.5 IN.) SPACER TO WALL JUNCTION 5. 6. Route the cut ends of harness through the conduit connector assembly and flex conduit sleeve. Be sure to use the supplied conduit bushing to prevent damage to the cord by the conduit.
OPERATION Function and Control Buttons and Display 1) Buttons There are ON/OFF, UP, DOWN, HEAT, COOL, CONSTANT FAN and fan speed of HIGH, LOW, AUTO buttons. 1. ON/OFF: Press to turn power on or off to the unit. 2. COOL, HEAT: choose the mode of operation 3. HIGH, LOW, AUTO: choose the fan speed. 4. UP, DOWN: Adjust the setting temperature , default: 60-90°F(16~32°F). 2) Dual 8 Digital Tube Displayer and LED Two 8 digital tube and 7 LEDs (ON/OFF, HIGH, LOW, AUTO, HEAT, COOL, CONSTANT FAN) 1.
OPERATION Function and Control When 32°F < T4 < 44°F, unit will run in electric heating mode to meet the first cycle demand. From the second cycle on, heat pump will operate. When T4≤32°F, the E-heater will operate exclusively. During heat pump mode, once T3 freezes to 5°F, or any fault occurs, unit will switch over to electric heating mode.
OPERATION Function and Control 7) Smart fresh air system The control logic as the below table1 and table2, the DIP switch is SW3 on the main board.
OPERATION Function and Control Relationship Between Inputs and Output by 24V Wall Thermostat INPUTS OUTPUT FreshAire Mode "24V wall Thermostat" In Demand No Demand Enable Continuous "ID Fan Speed Selection" ID Fan Operation "Fresh-Air Fan Operation" ID Fan Operation "Fresh-Air Fan Operation" YES NO High High ON High ON low low low Auto Auto OFF OFF High High High ON low low low Auto Auto High High low low low Auto Auto OFF High High High low low low Auto Au
OPERATION Function and Control Advanced Functions 1) DIP Switch Function [after reprogramming, disconnect the power cord and wait 2 minites for the electronic components (capacitors/resistors) to cool down or bleed off.
OPERATION Function and Control Advanced Settings Example Setting target: d0(C), d1(r), d2(30°C), d3(18°C), d4(-1°C), d5(1). Step 1: hold [HEAT] and [FAN SPEED] two keys at the same time continuously for 5 seconds. Display:’d0’’ Step 2: short press [HEAT] key. Display: ‘F’ Step 3: short press [+] or [-] key. Display: ‘C’ (setting d0 has finished) Step 4: short press [HEAT] key. Display:’d0’ Step 5: short press [+] key. Display:’d1’ Step 6: short press [HEAT] key.
OPERATION Function and Control Control logic (a). Turn ON unit: short R and FD then release one time within 5s. (b). Turn OFF unit: short R and FD then release twice within 5s. (c). Force unit shut down for one time: short R and FD short over 5s. NOTE: After forcing unit shut down, you can turn on the unit again by control panel. For the 24V remote thermostat, it is possible to control the unit with the full functions of DC-Inverter unit, if the main board has loaded a faulty control algorithm program.
OPERATION Function and Control 7) IPM fault protection When IPM faults, include overheat, unit will be shut down and all outputs are shut down. Control panel displays the error code. 8) Temperature sensor fault protection Any temperature sensor faults will shut down unit. The error code will be displayed . 9) Communication fault protection If communication faults between indoor unit and outdoor unit for continuously 2 minutes, unit will shut down and display error code.
OPERATION System Configuration Fresh Air Vent Control Figure 25 Air Vent Control System Configuration Fresh Air Vent Control POWER-DRIVEN VENT DOOR FRP025 Adjusting Air Figure 26 Backside of Front Panel 1 1. 2. 3. 4. 5.
OPERATION System Configuration Fresh Air Vent Control Digital Control User Input Configuration The adjustable control dip switches are located at the front portion of the digital Smart Center. The inputs are only visible and accessible with the front cover removed from the PTAC. Dip Switch Setting With the room freeze protection enable.Room Freeze Protection can be switched off at the owner’s preference by moving Dip Switch 5 to “OFF”.
OPERATION System Configuration Fresh Air Vent Control Engagement Method FreshAire System SW3 DIP SWITCH Mode Description Fresh-Air Fan runs only when Dip Switch is set to ‘ON’ SW3-1 ON/CON. 1 2 OFF/CYC.
Digital Control OperationOPERATION Digital Control User Input Configuration Figure 29 Digital Control Panel FRP029 Emergency Heat Operation Cooling Mode Pressing the “Cool” button after turn the unit on will put the unit into cooling mode. Press “UP” or “DOWN” button to adjust the set point, the unit will start the compressor and run appropriate frequency to maintain a comfortable room temperature. The compressor will come on anytime that the room temperature is 2℉above the set point.
Settings- Detailed Configurations OPERATION This section is about how to set the unit operating parameter, include display temperature unit, Fahrenheit or Celsius, control master, temperature limit, temperature calibration, display set point or room temperature. Under OFF mode, hold [Cool] and [Low] two keys at the same time continuously for 5 seconds. This time displays ‘d0’, indicates that system has entered the senior operation status.
Refrigeration Sequence Of Operation OPERATION 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. The refrigeration system uses four basic principles in its operation which are as follows: 1. “Heat always flows from a warmer body to a cooler body.” 2.
OPERATION Refrigerant System Diagram (1)Cooling + Heat Pump + Auxiliary Electric Heater PDH07R3SG PDH09R3SG PDH12R3SG PDH15R5SG COOLED AIR CENTRIFUGAL OR CROSS FAN AXIAL FAN HOT AIR HOT DISCHARGED AIR COOLED AIR COMPRESSOR INDOOR COILS OUTDOOR COILS ELECTRIC HEATER CAPILLARY NOTES: REFRIGERANT FLOW DIRECTION COOLING MODE HEATING MODE (2) Cooling + Electric Heater PDE07R3SG PDE09R3SG PDE12R3SG PDE15R5SG CENTRIFUGAL OR CROSS FAN AXIAL FAN COOLED AIR HOT DISCHARGED AIR COMPRESSOR OUTDOOR CO
Coils & Chassis Routine Maintenance 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. Under extreme conditions, more frequent cleaning may be required.
INSTALLATION PTAC Installation Recommendations PTACInstallationRecommendations For proper PTAC unit performance and maximum operating life refer to the minimum installation clearances below: Figure 1 PTAC units should be installed no closer than 12" apart when two units are side by side. If three or more PTAC units are to operate next to one another allow a minimum of 36" between units. Also,a vertical clearance of 60" should be maintained between units installed.
INSTALLATION Wall Sleeve Installation Instructions Wall Sleeve Installation Instructions (PDXWS) NOTE: (PDXWSA) Insure that the unit is only installed in a wall structurally adequate to support the unit including the sleeve, chassis and accessories.If the sleeve projects more than 8" into the room, a subbase or other means of support MUST be used. Please read these instructions completely before attempting installation. WARNING NOTICE Falling Object Hazard DO NOT allow any pitch toward the inside.
Figure 4 Alternate Panel WallWall Installations INSTALLATION Figure 6 CurtainWall WALL OR WINDOW 1/4" MIN PROJECTIO N CASE FLANGE (BY OTHERS) OPTIONAL SUBBASE OPTIONAL SUBBASE LEVELING SCREW LEVELING SCREW FRP004 Figure 5 Figure 7 Frame and Brick Veneer Block and Brick Veneer 1/4" MIN PROJECTION 1/4" MIN PROJECTION CONCRETE LINTEL WOOD FRAME STEEL LINTEL STEEL LINTEL 13-3/4" MIN. WITHOUT SUBBASE 11" MIN.
INSTALLATION Alternate Wall Installations Figure 8 Wall Sleeve Attachment ALTERNATE FASTENING METHODS (Field Supplied) WALL SLEEVE NOTE: The Wall Sleeve must be horizontally level (side-to-side) and pitched 1/4 bubble to the WOOD SCREW outside when installed in an opening. TOGGLE BOLT The mounting hole location EXPANSION should be approximately 2-4” ANCHOR BOLT from the top and bottom of the sleeve. MOUNTING HOLES PLASTIC ANCHORS SCREWS FRP008 Figure 9 Dimensions A ¼" MIN.
INSTALLATION Alternate Wall Installations 5. Drill two 3/16" holes through each side of the sleeve approximately 4" from top and 4" from bottom of sleeve. Screw four #10 x 1" screws (included) or appropriate fasteners for your installation, through the holes in the sides of the wall sleeve. 7. If the chassis and exterior grille are to be installed later, leave the weatherboard and center support in place, otherwise remove and dispose of them. (See Figure 13, Page 12). 8. 6.
INSTALLATION PXDR10 Drain Kit Installation PXDR10DrainKitInstallation Instructions (optional for new construction) NOTE: Determine whether drain will be located within the wall, on the indoor side, or will drain to the exterior of the building. Follow appropriate instructions below depending on your particular type of installation. Internal Drain NOTE: 1. 2. 3. Remove the backing from the gasket and mount it on the flat side of the mounting plate (See Figure 12, Page 11).
External Drain INSTALLATION External Drain (for new construction or unit replacement) Cover Plate Installation When using an external drain system, the condensate is removed through either of two drain holes on the back of the wall sleeve. Select the drain hole which best meets your drainage situation and install the drain kit. Seal off the other with a cover plate. Peel the backing tape off the gaskets and apply the sticky side to one cover plate and one mounting plate as shown in Details A and B. 2.
PXGA Standard Grille INSTALLATION PXGAStandard Grille Installation Instructions 5. Insert the remaining screws into the remaining holes and tighten securely. WARNING 1. Remove the center support and weatherboard if still installed in the sleeve. 2. Insert six plastic grommets into the grille openings from the outside of the grille as shown in Figure 13. Falling Object Hazard 3.
INSTALLATION PXGA Standard Grille CAUTION Figure 21 Unit Damage Hazard Removing Front Panel Failure to follow this caution may result in equipment damage or improper operation. 2 3. Carefully remove shipping tape from the front panel and power vent door. See Figure 20. Figure 20 Shipping Tape Location 1 4. FRP021 Remove front panel,see Figure 21. Pull out at the bottom to release it from the tabs (1). Then lift up (2).
Chassis Install INSTALLATION Chassis Installation 1. Lift unit level and slide unit into wall sleeve until seal rests firmly against front of wall sleeve. 3. Place tabs over top rail.(1)Push inward at bottom until panel snaps into place(2). 4. Reinstall front panel.See Figure 23. CAUTION Figure 22 SecuringUnit Excessive Weight Hazard Use two or more people when installing your air conditioner. Failure to do so can result in back or other injury. NOTICE Copper refrigerant tubes are NOT handles.
INSTALLATION Remote Control Thermostat Installation Remote Control Thermostat Installation To control the unit with a wall mounted thermostat follow the steps below: Install Thermostat 1. Approximately 5 ft from the floor. 2. Close to or in a frequently used room,preferably on an inside wall. 3. On a section of wall without pipes or ductwork. The Thermostat should NOT be mounted: 1. Close to a window, on an outside wall, or next to a door leading outside. 2.
Front Desk Control Terminal ol Terminal NTROL) INSTALLATION WARNING AC has built-in provisions for connection to an ower to the unit. The switch can be a central ration, connect one side of the normal open the other to the FD terminal. and FD then release for one time within 5s. R and FD then release for twice within 5s. for one time: short R and FD short over 5s. own, you can turn on the unit again by control system and switches must be field supplied.
INSTALLATION Final Inspection & Start-up Checklist Final Inspection & Start-up Checklist Secure components and accessories, such as the chassis, decorative front cover and control door. Inspect and ensure that all components and accessories have been installed properly and that they have not been damaged during the installation process. Start the unit and check for proper operation of all components in each mode of operation.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Chassis WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. The Front Panel needs to be removed prior to any repair or troubleshooting procedures. 1. Front panel is removed by lifting up and rotating back and down. CAUTION Unit weighs approximately 120 pounds.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove User Interface WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. 1. Remove 1 screw securing User Interface to the control box. (Figure 502) Figure 502 (User Interface Removal) 2. Remove 7 screws attaching display board to user interface.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Open Electrical Control Box WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. 1. Remove front panel (Figure 501). 2. Remove User Interface (Figures 502 thru 504). 3. Remove 7 screws.(Figure 505) 4. Unhinge electrical box.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Power Cord WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. 1. Remove front panel (Figure 501). 1. Remove power cord access panel located on right side of control box(2 screws) Figure 507) Figure 507 (Remove Power Cord) 2.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Power PCB WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. 1. Remove front panel (Figure 501). 2. Remove User Interface (Figures 502 thru 504). 3. Open electrical Control Box (Figure 505). 4. Snip wire ties to loosen wire bundles (Figure 509).
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Power PCB (Continued) NOTE: It is a good practice to take pictures of the wiring connections to facilitate reinsallation. 6. Disconnect wire connectors from Power PCB (Power Board) one at a time. and and identify plugs for reinstallation (Figure 511). 7. Remove Power PCB (Power Board) (4 screws).
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove IPM PCB (Inverter Board) 1. Remove front panel (Figure 501). 2. Remove User Interface (Figures 502 thru 504). 3. Open electrical Control Box (Figure 505). 4. Disconnect CN 13 from the Power PCB. 5. Remove Chassis from Wall (Figure 501). 6. Remove shroud support (2 screws) (Fig 512). 7. Remove IPM PCB Cover (3 screws) (Fig 512). NOTE: It is a good practice to take pictures of the wiring connections to facilitate reinsallation. 8. Disconnect all wires.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Blower Wheel (Inside Fan) WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. 1. Remove front panel (Figure 501). 2. Remove User Interface (Figures 502 thru 504). 3. Open electrical Control Box (Figure 505). 4. Remove indoor fan guard (6 screws) (Figure 514).
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Blower Wheel (Inside Fan)(Continued) 9. Remove left panel (7 screws) (Figure 517). Figure 517 (Remove Left Panel) 10. Loosen set screw (DO NOT REMOVE) from blower motor shaft. (Figure 518). NOTE: Set screw is a metric type “Allen Head” screw.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Blower Wheel (Inside Fan)(Continued) 11. Remove blower end plate (3 screws)(Figure 519). 12. Slide blower assembly out of left side of unit.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Blower Wheel Motor (Inside Fan) WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. 1. Remove front panel (Figure 501). 2. Remove User Interface (Figures 502 thru 504). 3. Open electrical Control Box (Figure 505). 4. Snip wire ties to loosen wire bundles.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Blower Wheel Motor (Inside Fan) (Continued) 7. Remove mounting screws from electrical box rear and side covers and slide out of way to facilitate blower motor replacement (Figure 522). 6. Remove fan motor bracket (3 screws). 7. Remove motor.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Heating Element WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. 1. Remove front panel (Figure 501). 2. Remove User Interface (Figures 502 thru 504). 3. Open electrical Control Box (Figure 505). 4. Remove Chassis from Wall (Figure 501) 4.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Freshaire Components WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. 1. Remove Chassis From wall. (Figure 501). 2. Remove Freshair Cover (Figure 526). Figure 526 (Remove Fresh Air Housing) 3. Cut wire ties as required. 4.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Freshaire Components (Continued) 8) Remove freshaire actuator assembly (1 screw). 9) Remove Blower wheel (Figure 514 thru 519). 10) Remove blower wheel housing. 11) Remove freshaire fan assembly ( 2 screws).
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Outdoor Fan WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. 1. Remove Chassis from wall (Figure 501). 2. Remove front panel (Figure 501). (Not required for Blade replacement) 3. Remove User Interface (Figures 502 thru 504). Not required for Blade replacement) 4.
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Outdoor Fan (Continued) 8. Remove Brackets and Shrouds (12 screws)(Figure 531and 532). 9. Remove Mounting screws (4 places) (Figure 533).
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Outdoor Fan (Continued) 10. Pull up and remove fan housing (Figure 534). 11. Remove shaft nut and fan blade (Figure 535). 12. Remove motor (4 places) (Figure536).
UNIT DISASSEMBLY AND COMPONENT REPLACEMENT Remove Reversing valve Solenoid 1. Remove Chassis from wall (Figure 501). 2. Remove front panel (Figure 501). (Not required for Blade replacement) 3. Remove User Interface (Figures 502 thru 504). Not required for Blade replacement) 4. Open electrical Control Box (Figure 505). Not required for Blade replacement. 5. Cut wire ties as required. Not required for Blade replacement. 6.
R-410A SEALED SYSTEM REPAIR WARNING Refrigeration system under high pressure O service this equipment. R410A systems operate at higher pressures than R22 equipment. Appropriate safe service and handling practicces must be used. Only use gauge sets designed for use with R410A. Do not use standard R22 gauge sets. The following is a list of important considerations when working with R-410A equipment 1. R-410A pressure is approximately 60% higher than R-22 pressure. 2.
R-410A SEALED SYSTEM REPAIRS WARNING RISK OF ELECTRIC SHOCK Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service. Failure to do so could result in electric shock, serious injury or death. 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.
R-410A SEALED SYSTEM REPAIRS Undercharged Refrigerant Systems WARNING RISK OF ELECTRIC SHOCK Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service. Failure to do so could result in electric shock, serious injury or death. 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.
R-410A SEALED SYSTEM REPAIRS Overcharged Refrigerant Systems WARNING RISK OF ELECTRIC SHOCK Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service. Failure to do so could result in electric shock, serious injury or death. 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.
R-410A SEALED SYSTEM REPAIRS Restricted Refrigerant System Troubleshooting a restricted refrigerant system can be difficult. The following procedures are the more common problems and solutions to these problems. There are two types of refrigerant restrictions: Partial restrictions and complete restrictions. A partial restriction allows some of the refrigerant to circulate through the system. With a complete restriction there is no circulation of refrigerant in the system.
R-410A SEALED SYSTEM REPAIRS Sealed System Method of Charging/ Repairs WARNING CAUTION BURN HAZARD Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch. FREEZE HAZARD Proper safety procedures must be followed, and proper protective clothing must be worn when working with liquid refrigerant. Failure to follow these procedures could result in moderate or serious injury.
COMPONENT TESTING Hermetic Components Check WARNING WARNING BURN HAZARD Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch. CUT/SEVER HAZARD Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc. Failure to follow these procedures could result in moderate or serious injury. Failure to do so could result in serious injury.
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. The reversing valves used in the RAC system is a 2-position, 4-way valve. The single tube on one side of the main valve body is the high-pressure inlet to the valve from the compressor.
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. 1. Turn off high voltage electrical power to unit. 2. Unplug line voltage lead from reversing valve coil. 3.
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. NOTE: You must have normal operating pressures before the reversing valve can shift.
COMPONENT TESTING Replace The Reversing Valve NOTICE WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. FIRE HAZARD The use of a torch requires extreme care and proper judgment. Follow all safety recommended precautions and Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants. notice could result in moderate to serious property damage.
COMPONENT TESTING Touch Test Chart : To Service Reversing Valves Normal Cooling Normal Heating Hot Hot NOTES: RIGHT Pilot LEFT Pilot 5 RIGHT PilotTube Capillary Capillary Tube 4 LEFTCapillary Pilot Tube Capillary Tube 3 Tube to OUTSIDE COIL SUCTION TUBE 2 to INSIDE Tube toTube INSIDE COILCOIL 1 SUCTION TUBE to to Compressor Compressor DISCHARGE TUBE from Compressor from Compressor VALVE OPERATING CONDITION DISCHARGE TUBE NORMAL FUNCTION OF VALVE 6 Cool Cool as (2) Hot as (1) *TVB T
Compressor Checks COMPONENT TESTING WARNING ELECTRIC SHOCK HAZARD Turn off electric power before installation. WARNING service or All electrical connections and wiring MUST be the National Electrical Code and all local codes which have jurisdiction. Failure to do so can result in personal injury or death. BURN HAZARD Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch.
COMPONENT TESTING Compressor Checks WARNING WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants. Failure to do so could result in serious injury or death.
Compressor Replacement COMPONENT TESTING 1. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing. WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death.
COMPONENT TESTING Compressor Replacement -Special Procedure in Case of Compressor Burnout 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. WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation.
Check Indoor Fan Motor COMPONENT TESTING Gain Access to the Power PCB (Power Board). 1. Remove front panel (Figure 501). Indoor Fan (H) Indoor Fan (M) High Speed Medium Speed Indoor Fan (L) Low Speed 2. Remove User Interface (Figures 502 thru 504). 3. Open electrical Control Box (Figure 505). Indoor Fan (N) Nuetral Indoor fan control in cooling mode: The indoor fan will run synchronously with cooling demand.
COMPONENT TESTING Check Fan Motor Capacitors Gain Acces to the Power PCB (Power Board). 1. Remove front panel (Figure 501). 2. Remove User Interface (Figures 502 thru 504). 3. Open electrical Control Box (Figure 505). WARNING RISK OF ELECTRIC SHOCK Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service. Figure 708 (Fan Capacitors) Failure to do so could result in electric shock, serious injury or death.
COMPONENT TESTING Main PCB (logic) Board Connector Identification CN 6 Display CN 16 IR/ RF Remote Indoor ambient temperature (T1) Indoor coil temperature (T2) Outdoor coil temperature (T3) Outdoor ambient temperature (T4) Compressor discharge temperature (T5) Indoor outlet air temperature (T6) CN-44 I- Check CN3 Trans_24V Heater 2 CN-5 Debug Heater 1 Heater Com CN 1 MB Comm CN-21 E Heater_N Power Relays Figure 709 (Main PCB (logic) Board) 83 CN 2 E Heater 2C
COMPONENT TESTING Power PCB (Power Board) Connector Identification DC Bus Lines Positive CN 3 MB Com Mod Com J3 24V J3 24v + DC Bus Lines Negative CN 21 FAH CN 22 FAL CN 20 FA + CN 5 Inside Fan Connector CN-9 Fresh Air Connector CN 10 Power Relays CN 6 & 7 Reversing Valve Solenoid CN 18 Outside Fan Connector L2/ N L1 L1 Fuse CN 6 ACN CN 4 Trans- IN Figure 710 (Power PCB (Power Board) 84
Basic Troubleshooting TROUBLESHOOTING Malfunction Possible Reasons Solution Unit does not have power; Power line damaged or power not available. "Check the indicator LED on the LCID power head, it should be lit up, if not, push the RESET button, if still no voltage, but power grid has output, you need to change the power cord." Power cord protection trip. Check the power cord for damage, push the RESET button. If not solved, replace the power cord. Power cord isn’t plugged in correctly.
TROUBLESHOOTING Figure 711 Basic Troubleshooting Malfunction Possible Reasons Solution Make sure that there are no obstacles at the indoor/outdoor air outlet. Something is blocking the indoor/outdoor air outlet. Set unsuitable temperature. Set higher/lower temperature by the control board. NOTE: temperature setting restriction will restrict the setting temperature. See the ADVANCED SETTINGS section. Indoor air filter is dirty. Should clean the filter at least every month. Room is hot/cold.
Error code and solutions 87 TROUBLESHOOTING Figure 712 ERROR CODE Meaning Solutions Click link for reference E1 Communication Error between Power, IPM, Main, & or Display electronic boards+B2:C14 Check all Communication Cables; MOD_Com, MB_Com, Display_ com& Power Relay_com. See “Unit does not operate” in troubleshooting section” E2 Indoor Temp Sensor Open/Shorted Check if properly connected. Check resistance values. Check for loose wires/broken wires in Molex connectors.
TROUBLESHOOTING Figure 712 Error code and solutions 88 ERROR CODE Meaning Solutions Click link for reference P2 IPM Over Heat or Over Current Protection envoked Check for low air flow or no air flow due to evaporator or condenser coil bloked with debris. Evap/Cond motor fan motor compromised, fan Capacitors compromised, blower wheel/fan blade compromised. Check Dip Switch SW2 on Main Board is correct for the BTU of the unit model.
Unit Does Not Operate TROUBLESHOOTING Figure 713 Unit Does Not Operate Remove Front Panel (Figure 501) Open Electrical Box (Figure 505) Check L1 and L@ for line voltage (220265v) on Power PCB Check LCDI Unit power supply cord for tripped circuit NO Is power Cord tripped Check the fuse on the power PCB for continuity with multi meter Is Line voltage Present YES Replace fuse YES Is the fuse open NO Go to Next page and continue troubleshooting Trace back source power to tripped breaker or open
TROUBLESHOOTING Figure 713 Unit Does Not Operate Disconnect Display Connector CN6 on top of Main PCB Set multi meter do read low voltage DC and place Multi Meter leads on pins 3 and 7. Set multimeter to read continuity. Check all wires on display board connector cable to CN6 plug for pin to pin continuity. Is Fluctuating 0-6Vdc Present? NO Check all wiring and comms cable connectors from Main PCB to the Power PCB YES Ensure all connectors are undamaged, fully connected and fully engaged.
TROUBLESHOOTING Figure 714 Check Heater Coil The unit is equipped with a universal E-heater, which contains two independent heating elements. Two limit switches are incorporated into the heater assembly. The primary opens at 155°F and closes at 125°F. The secondary’s open temp is 200°F.They can not be replaced independantly. If they are found to be faulty the entire heater assembly must be replaced as a unit. The 9K BTU unit incorporates a 2.5kW and a 1.0kW element. The 12K BTU unit incorporates a 3.
TROUBLESHOOTING Check Electric Heater Control Replace Heater Assembly. Check Heater Assembly. Refer to Figures 714-716 on previous page. Does Heater Assembly check good? Check line voltage connec�ons at line block. Repair as required. Check for 230/265v across relay 1 black and relay 2 blue wire on com terminals. Is 230/265 present? Replace Relays as required. Check for 12 vdc at heater relays. Is 12 VDC Present? Replace or repair cables. Check CN2 and CN21 on Main PCB for 12 vdc.
Check Thermistors TROUBLESHOOTING Figure 718 Gain Acces to Main PCB (logic) board 1. Remove front panel (Figure 501). 2. Remove User Interface (Figures 502 thru 504). 3. Open electrical Control Box (Figure 505). 4. Using a multi meter ohm across applicaple pins for the sensor you are checking. 5. Refer to thermistor charts for resistance and temperature deviation.
TROUBLESHOOTING Figure 719 Check Thermistors -Resistance Table of Thermistors (5K) 94 Temp Resis Temp Resis Temp Resis Temp Resis Temp Resis -33 130100 7 34252 47 10785 57 8275 97 3119 -32 125518 8 33209 48 10499 58 8063 98 3048 -31 121114 9 32202 49 10221 59 7857 99 2980 -30 116881 10 31228 50 9952 60 7657 100 2913 -29 112811 11 30288 51 9690 61 7462 101 2848 -28 108898 12 29378 52 9437 62 7273 102 2785 -27 105131 13 28499 53 91
TROUBLESHOOTING Figure 719 Check Thermistors -Resistance Table of Thermistors (5K) 95 Temp Resis Temp Resis Temp Resis Temp Resis Temp Resis 137 1321 162 812 187 517 212 339 237 229 138 1294 163 797 188 508 213 334 238 226 139 1269 164 782 189 499 214 329 239 222 140 1244 165 768 190 491 215 323 240 219 141 1219 166 754 191 482 216 318 241 216 142 1195 167 740 192 474 217 313 242 212 143 1171 168 727 193 466 218 308 243 209
TROUBLESHOOTING Figure 720 Check Thermistors -Resistance Table of Thermistors (50K)(Compressor Discharge Sensor) 96 Temp Resis Temp Resis Temp Resis Temp Resis Temp Resis -40 167862 0 42664 40 13052 80 4649 120 1878 -39 161791 1 41332 41 12698 81 4538 121 1839 -38 155965 2 40047 42 12354 82 4431 122 1800 -37 150368 3 38805 43 12021 83 4326 123 1763 -36 144994 4 37607 44 11698 84 4224 124 1726 -35 139828 5 36450 45 11384 85 4125 125 169
TROUBLESHOOTING Figure 720 Check Thermistors -Resistance Table of Thermistors (50K) (Compressor Discharge Sensor) 97 Temp Resis Temp Resis Temp Resis Temp Resis Temp Resis 160 843 178 606 196 443 214 329 232 247 161 828 179 595 197 435 215 323 233 244 162 812 180 585 198 428 216 318 234 240 163 797 181 574 199 421 217 313 235 236 164 782 182 564 200 414 218 308 236 233 165 768 183 554 201 407 219 303 237 229 166 754 184 545 202 4
WIRING DIAGRAMS Figure 801 98
Figure 802 (Used With Inverter Board PN XXX) BK-BLACK WH-WHITE BN-BROWN OR-ORANGE RD-RED YE/GN-YELLOW/GREEN BL-BLUE GN-GREEN COLOR CODE RELAY2 BK BL WH BL BL BK BK POWER SUPPLY COM NO DC+ BK ACN INPUT_N INPUT_L BK(BN) POWER CONNECTOR YE/GN TERMINAL BLOCK YE/GN REACTOR BL BK BK WH YE/GN DC- EARTH EMI FILTER TRANS_IN BL RD 2 BL RD BK ACL RD BL BK(BN) L L DCDC+ ACN BL OUTPUT_L OUTPUT_N TRANS_24V E.HEATER_N E.
PARTS CATALOG Introduction This illustrated part catalog has been written to help assist the technician to quickly locate the parts that he or she needs to make a repair. The catalog is broken down into different figures which represent different modules of the air conditioning unit. For example; the chassis, refrigeration system, blower system, or electrical controls. Each figure contains an illustration(s) containing item numbers and a corresponding item list.
PARTS CATALOG Figure 901 PVH09K3FA, PVH09K3FB, PVH09R3FA, PVH09R3FB PVH12K3FA, PVH12K3FB, PVH12R3FA, PVH12R3FB NON-ILLUSTRATED PARTS 75 NOISE BLANKET 76 NOISE BLANKET CAP 77 DISCHARGE AIR SENSOR 23 23.1 23.2 78 ROOM AND COIL SENSOR PACK 79 AMBIENT SENSOR 80 DISHARGE SENSOR 81 POWER CORD LCDI 82 PANEL CLIP 83 BELLOWS VALVE 6.7 6.5 16 15 14 6.6 6.10 6.11 6.4 6.3 6.9 6.8 19 18 17 20 21 24 22 60 25 26 12 6.12 27 28 6.13 6.2 29 6.
PARTS CATALOG PVH09K3FA, PVH09K3FB, PVH09R3FA, PVH09R3FB Figure 901 PVH12K3FA, PVH12K3FB, PVH12R3FA, PVH12R3FB ITEM 102 PART NUMBER PART DESCRIPTION USED ON MODEL QTY 1 67808044 AIR FILTER ALL 1 2 67808001 PANEL COVER ALL 1 3 67808043 DISCHARGE LOUVER ALL 1 4 67808026 INDOOR FAN GUARD ALL 1 5 67808024 OUTDOOR LOUVER ALL 1 6 67812213 "230v Fresh Air Door Actuator Kit PVH09K3FA, PVH09K3FB, PVH12K3FA, PVH12K3FB 1 6 67812214 265v Fresh Air Door Actuator Kit PVH09R3FA, PV
PARTS CATALOG PVH09K3FA, PVH09K3FB, PVH09R3FA, PVH09R3FB Figure 901 PVH12K3FA, PVH12K3FB, PVH12R3FA, PVH12R3FB 103 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 23.1 QTY 67812210 Reversing Valve Solenoid PVH09K3FA, PVH09K3FB, PVH12K3FA, PVH12K3FB 1 23.1 67812211 Reversing Valve Solenoid PVH09R3FA, PVH09R3FB, PVH12R3FA, PVH12R3FB 1 23.
PARTS CATALOG PVH09K3FA, PVH09K3FB, PVH09R3FA, PVH09R3FB Figure 901 PVH12K3FA, PVH12K3FB, PVH12R3FA, PVH12R3FB ITEM 104 PART NUMBER PART DESCRIPTION USED ON MODEL QTY 46 67812212 "Freshair Operation Panel / PCB Assembly Kit Contains items: 46.1 DISPLAY OVERLAY 46.2 DISPLAY PCB 46.
PARTS CATALOG PVH09K3FA, PVH09K3FB, PVH09R3FA, PVH09R3FB Figure 901 PVH12K3FA, PVH12K3FB, PVH12R3FA, PVH12R3FB ITEM PART NUMBER PART DESCRIPTION USED ON MODEL -82 67812172 PANEL CLIP ALL 1 -83 67812100 BELLOWS VALVE ALL 1 -80 67812186 DISHARGE SENSOR ALL 3 -81 67812149 POWER CORD LCDI PVH09K3FA, PVH09K3FB, PVH12K3FA, PVH12K3FB 1 -81 67808100 POWER CORD LCDI PVH09R3FA, PVH09R3FB, PVH12R3FA, PVH12R3FB 1 -82 67812172 PANEL CLIP ALL 1 -83 67812100 BELLOWS VALVE ALL 1 -84
Accessories ACCESSORIES New Construction Accessories PDXWSA WALL SLEEVE Galvanized zinc coated steel is prepared in an 11-step process, then powder coated with a polyester finish and cured in an oven for exceptional durability. The wall sleeve is insulated for sound absorption and thermal efficiency, 16" High x 42" Wide x 13 3/4" Deep. PDXWSEXT DEEP WALL SLEEVE EXTENSION For use when the wall is thicker than 13 1/4”deep.
New Construction Accessories ACCESSORIES PDXDAA LATERAL DUCT ADAPTER Attaches to the Friedrich PTAC/PTHP unit to direct up to 35% of the total airflow to a second room. The unit mounted duct plenum features a front mounted aluminum grille that has two positions to provide the most optimal air direction. The air may be directed to either the left or the right of the unit through the supplied 3.5 H" x 7 W" x 47" L plenum. Plenum may be cut to length by the installer.
Service Manual Appendix: APPENDIX Appendix 1: Reference of Celsius and Fahrenheit Reference Sheet of Celsius andSheet Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit display temperature (°F) 61 62/63 64/65 66/67 68 Fahrenheit Celsius(°C) (°F) 60.8 62.6 64.4 66.2 68 16 17 18 19 20 Fahrenheit display Fahrenheit temperature (°F) (°F) 69/70 69.8 71/72 71.6 73/74 73.4 75/76 75.
WARRANTY Friedrich Air Conditioning Co. 10001 Reunion Place, San Antonio, TX 78216 800.541.6645 www.friedrich.com PV-SERIES PACKAGED TERMINAL AIR CONDITIONERS LIMITED WARRANTY SAVE THIS CERTIFICATE.It gives you specific rights.You may also have other rights which may vary from state to state and province to province. In the event that your unit needs servicing, contact your nearest authorized service center.
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.
