Friedrich FPHW091 Service Manual

Floating air pro-premiere single zone

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Service & parts manual (120 pages)

Service & parts manual (121 pages)

Table Of Contents

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Floating Air Pro-Premiere

Single Zone

Model

FPHW091

FPHW091A

FPHW093

FPHW093A

FRHW093

FRHW093A

FPHW121

FPHW121A

FPHW123

FPHW123A

FRHW123

FRHW123A

FPHW183

FPHW183A

FPHW243

FPHW243A

FPHW363

FPHW363A

FPHW363B

96261401_05

Indoor Unit

Outdoor Unit

FPHSW09A1A

FPHSR09A1A

FPHSW09A1B

FPHSR09A1A

FPHFW09A3A

FPHSR09A3A

FPHFW09A3B

FPHSR09A3A

FRHSW09A3A

FRHSR09A3A

FRHSW09A3B

FRHSR09A3A

FPHSW12A1A

FPHSR12A1A

FPHSW12A1B

FPHSR12A1A

FPHFW12A3A

FPHSR12A3A

FPHFW12A3B

FPHSR12A3A

FRHSW12A3A

FRHSR12A3A

FRHSW12A3B

FRHSR12A3A

FPHFW18A3A

FPHSR18A3A

FPHFW18A3B

FPHSR18A3A

FPHFW24A3A

FPHSR24A3A

FPHFW24A3B

FPHSR24A3A

FPHSW36A3A

FPHSR36A3A

FPHSW36A3B

FPHSR36A3A

FPHSW36A3C

FPHSR36A3B

Voltage

BTU

115

WiFi

208/230

WiFi

208/230

WiFi

115

12k

115

12k

WiFi

208/230

12k

208/230

12k

WiFi

208/230

12k

208/230

12k

WiFi

208/230

18k

208/230

18k

WiFi

208/230

24k

208/230

24k

WiFi

208/230

36k

208/230

36k

WiFi

208/230

36k

WiFi

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Summary of Contents for Friedrich FPHW091

Page 1 Floating Air Pro-Premiere Single Zone Model Indoor Unit Outdoor Unit Voltage FPHW091 FPHSW09A1A FPHSR09A1A FPHW091A FPHSW09A1B FPHSR09A1A WiFi FPHW093 FPHFW09A3A FPHSR09A3A 208/230 FPHW093A FPHFW09A3B FPHSR09A3A 208/230 WiFi FRHW093 FRHSW09A3A FRHSR09A3A 208/230 FRHW093A FRHSW09A3B FRHSR09A3A 208/230 WiFi FPHW121 FPHSW12A1A FPHSR12A1A FPHW121A...
Page 2: Table Of Contents
TABLE OF CONTENTS Table of Contents INTRODUCTION‑ Important Safety Information‑ Personal Injury Or Death Hazards‑ Model Identification Guide‑ SPECIFICATIONS‑ Product Specifications 9k and 12k‑ Product Specifications 18k, 24k and 36k‑ Product Dimensions: Indoor Units‑ Capacities and Selection Data‑ Capacities and Selection Data‑ Remote Control‑...
Page 3 TABLE OF CONTENTS COMPONENTS TESTING ‑ Compressor‑ EEV Stepper Coil‑ Fan Motor‑ Printed Circuit Board Diagram Lookup Chart‑ Printed Circuit Board (Indoor)‑ Printed Circuit Board (Outdoor)‑ R‑410A SEALED SYSTEM REPAIR‑ Service Valves Appearance‑ Gas Charging (After Repair)‑ Pumping Down‑ WIRING DIAGRAMS‑ Wiring Diagram Lookup Table‑...
Page 4: Introduction
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.
Page 5 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.
Page 6: Personal Injury Or Death Hazards
INTRODUCTION Personal Injury Or Death Hazards WARNING AVERTISSEMENT ADVERTENCIA SAFETY FIRST Do not remove, disable Ne pas supprime, désactiver No eliminar, desactivar o or bypass this unit’s ou contourner cette l´unité pasar por alto los safety devices. Doing so des dispositifs de sécurité, dispositivos de seguridad de may cause fire, Doing so faire vous risqueriez de...
Page 7 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. Reference EPA regulations (40 CFR Part 82, Subpart F ) Section 608. •...
Page 8: Model Identification Guide
INTRODUCTION Model Identification Guide MODEL IDENTIFICATION GUIDE Function : Model Type: HS – H ea t Pump Single Approximate Voltag e FR- Floating Air Premier Coolin g 1- 115 Volts HM – Heat Pump Multi FP - Floating Air Pro BTU/HR 3- 230 Volts HF –...
Page 9: Specifications
SPECIFICATIONS Product Specifications 9k and 12k Model No. Units FPHW091/A FPHW121/A FPHW093/A FRHW093/A FPHW123/A FRHW123/A INDOOR MODEL FPHSW09A1A, FPHSW12A1A, FPHFW09A3A, FRHSW09A3A, FPHFW12A3A, FRHSW12A3A, FPHSW09A1B/B FPHSW12A1B/B FPHFW09A3B/B FRHSW09A3B/B FPHFW12A3B/B FRHSW12A3B/B OUTDOOR MODEL FPHSR09A1A FPHSR12A1A FPHSR09A3A FRHSR09A3A FPHSR12A3A FRHSR12A3A SPECIFICATIONS CAPACITY COOLING (RATED)
Page 10: Product Specifications 18K, 24K And 36K
SPECIFICATIONS Product Specifications 18k, 24k and 36k Model No. Unit FPHW183/A FPHW243/A FPHW363A FPHW363B INDOOR MODEL FPHFW18A3A,/ B FPHFW24A3A/B FPHSW36A3A/B FPHSW36A3C OUTDOOR MODEL FPHSR18A3A FPHSR24A3A FPHSR36A3A FPHSR36A3B CAPACITY COOLING (RATED) 18000 23500 36000 35000 CAPACITY COOLING MIN - MAX 6500-19500 8000-26500 12000--38000 12000--38000...
Page 11: Product Dimensions: Indoor Units
SPECIFICATIONS Product Dimensions: Indoor Units Model Width Height Depth FPHSW09A1A, 33 7/8 “(Inches) 11 3/16 “(Inches) 8 1/2 “(Inches) FPHSW09A1B/B FPHFW09A3A, 33 7/8 “(Inches) 11 3/16 “(Inches) 8 1/2 “(Inches) FPHFW09A3B/B FPHSW12A1A, 33 7/8 “(Inches) 11 3/16 “(Inches) 8 1/2 “(Inches) FPHSW12A1B/B FPHFW12A3A, 33 7/8 “(Inches)
Page 12: Capacities And Selection Data
SPECIFICATIONS Capacities and Selection Data Capacity characteristic charts The following charts show the characteristics of outdoor unit capacity, which corresponds with the operating ambient temperature of outdoor unit. This data is obtained with Free-Spin of the Condenser and not in a testing mode Conditions: Pipe length / height difference : 25 ft.
Page 13 Cooling BTUs Heating BTUs Power kBtu/h 9.56 6.69 0.26 10.09 7.06 0.36 10.35 7.24 0.47 10.96 7.67 0.50 11.18 7.83 0.59 FPHW091/A 11.57 8.10 0.70 11.90 8.33 0.81 11.78 8.25 1.00 11.63 8.14 1.02 11.08 7.76 1.02 9.94 6.96 1.00 10.76...
Page 14 SPECIFICATIONS Capacities and Selection Data Floating Air Pro / Premier Cooling Extended Capacity (By System Model) Indoor Air Temp. °F DB / °F WB 80 /67 Outdoor Air System Model Temp. (°F DB) Cooling BTUs Heating BTUs Power kBtu/h 10.66 7.46 0.35 11.39...
Page 15 SPECIFICATIONS Capacities and Selection Data Floating Air Pro / Premier Cooling Extended Capacity (By System Model) Indoor Air Temp. °F DB / °F WB 80 /67 Outdoor Air System Model Temp. (°F DB) Cooling BTUs Heating BTUs Power kBtu/h 29.25 20.48 1.09 32.72...
Page 16 80 /67 Outdoor Air System Model Temp. (°F DB) Cooling BTUs Heating BTUs Power kBtu/h 4.95 1.14 5.45 1.07 7.08 1.17 8.93 1.30 FPHW091/A 9.67 1.30 9.65 1.19 9.89 1.03 10.54 0.94 9.86 0.82 6.40 1.22 8.12 1.30 9.76 1.49 12.13...
Page 17 SPECIFICATIONS Capacities and Selection Data Floating Air Pro / Premier Cooling Extended Capacity (By System Model) Indoor Air Temp. °F DB / °F WB 80 /67 Outdoor Air System Model Temp. (°F DB) Cooling BTUs Heating BTUs Power kBtu/h 8.57 1.17 10.90 1.27...
Page 18 SPECIFICATIONS Capacities and Selection Data Floating Air Pro / Premier Cooling Extended Capacity (By System Model) Indoor Air Temp. °F DB / °F WB 80 /67 Outdoor Air System Model Temp. (°F DB) Cooling BTUs Heating BTUs Power kBtu/h 8.56 1.46 10.78 1.60...
Page 19: Remote Control
Remote controller OPERATION Remote Control Remote controller The remote controller transmits signals to the system. SMART(invalid for multi system) TEMP+ Used to enter fuzzy logic operation directly, regardless of the unit is on or off. Used to adjust the room temperature and the timer, also real time.
Page 20 OPERATION Remote Technical Parameters Remote receiver distance (front of the air conditioner): 26ft. Remote receiver angle: Less than 60 degrees. Temperature control accuracy: ±2.4°F. Time Response: Less than 1 second. Display Functions Remote Current control functions on the remote controller (See unit’s “Installation and Operating Manual”) Display of the indoor unit displays set temperature or indoor temperature.
Page 21: Using Sleep During Off-Timer Function
OPERATION Sleep mode will cease after 8 hours of operation. Using Sleep during Off-Timer Function When using Sleep mode, if the next OFF-Timer setting less than 8 hours, Sleep mode will remain active until the OFF-Timer setting. If the next OFF-Timer setting more than 8 hours, it will override the OFF-Timer setting and will turn the system off 8 hours after engaging Sleep mode.
Page 22 OPERATION Air flow direction (Louvers) control The louver is operated by a stepper motor and operates the horizontal swing of the louver automatically. Press the SWING button to start or stop the louver swing. During the louver swing in normal operation, the current position will be stored. When the appliance turns off and the louvers swing automatically to the default position, it will position at the close position plus 5º.
Page 23 OPERATION Dehumidifying mode The dehumidifying mode is illustrated as follows: 62˚F Figure 304 Dehumidifying area I: Operation at the frequency in the range (30–60Hz) according to Dt (Tindoor ambient-Tset). Dehumidifying area II: The compressor stops for 5 minutes and operators for 5 minutes at the lowest frequency. Dehumidifying area III: The compressor stops.
Page 24 OPERATION Fan Only Mode Operation During the appliance run in this mode; the compressor and outdoor fan stop and the indoor fan operates under the pre- setting of air volume. The louver swing and the indoor fan speed is the same as the Heating Mode. Defrost Conditions for Defrost Activation: The following three conditions must be met to activate Defrost.
Page 25: Installation
INSTALLATION Installation Dimension Diagram Figure 401...
Page 26: Main Tools For Installation And Maintenance
INSTALLATION Main Tools For Installation and Maintenance Figure 402...
Page 27 (Btu/h) Length (ft) Elevation A (ft) Refrigerant B (ft) (oz/ft) LIQUID If the height or pipe length is out of the scope of the table, please consult your installer or Friedrich /!ur Conditioning. 9k-12 1/4"(Ø6.35) 3/8"(Ø9.52) 1/4"(Ø6.35) 1/2"(Ø12.7) 24k-36k 3/8"(Ø9.52)
Page 28: Install Indoor Unit
INSTALLATION Install Indoor Unit Horizontal ruler Mounting plate the Mounting Plate position Decide an installing location for the mounting plate Holder according to the indoor unit location and piping (for some models) ..-· · ··· direction. Find the center of the mounting plate according to the : .
Page 29 INSTALLATION Install Indoor Unit Note: Both sides drainage structure is standanl. For both sides drainage stroctul'8, it be chosen for right. left or both Ilk/es drainage connection. If choosing both aides drainage connection, another proper drain hose Is needed as there Is only one drain hose offered by facto,y. If choosing one side drainage connection, ma/ce suf8 the drain hole on the other side Is well plugged.
Page 30 INSTALLATION Install Indoor Unit 4. Indoor Unit Piping Installation 1 ) Hang the unit onto mounting plate (Fig. 412). Fig. 415 Fig. 413...
Page 31 INSTALLATION Install Indoor Unit 6) Connect the piping . Piping Connection: � sealing cap a.Before unscrewing the b ig and the small sealing caps, press the small seallng cap with the finger until the exhaust noise stops, and then loosen the finger.
Page 32 INSTALLATION Install Indoor Unit 8) Connect the power connecting cord (Fig.422). � u 'it!=; :;�� . P ower connecting '-. cord Fig. 422 mounUng plate mounting plate Flg.423 Fig424 9) Remove the support plate as shown in Fig. 423. Then move the unit step by step to reach the best Installation, then press the 2 buckles of the air duct Into 2 down slots of the mounting plate.
Page 33 Installation instructions / INSTALLATION Install Indoor Unit Indoor unit installation 10) Pull the baffles as shown in Fig. 426. Close the front shell as shown in Fig. 427. Then press the E position to fasten the front shell as shown in Fig. 428 . Fig.428 �...
Page 34 INSTALLATION Install Outdoor Unit Fig. 431...
Page 35 INSTALLATION Outdoor Units...
Page 36: Power And Wiring
INSTALLATION Installation Instructions, Power and Wiring Power and Wiring Connecting of the Cable Front panel • Indoor Unit (Inside) Terminal Connect the power cord to the indoor unit by connecting the wires to the terminals on the control board individually in accordance with the outdoor unit connection.
Page 37: Leak Check, Evacuation, And Charging (Triple Evacuation)
Leak Check, Evacuation, and Charging (Triple Evacuation) Friedrich requires all installations are Leak Checked and Evacuated in accordance to the “triple evacuation” process. This process promotes a dry tight refrigeration system before opening the service valves. It recommended that a single port refrigeration manifold and hoses rated over 31.5psi be used.
Page 38 INSTALLATION Leak Check, Evacuation, and Charging (Triple Evacuation) EVACUATE BREAK VACUUM WITH DRY NITROGEN WAIT EVACUATE BREAK VACUUM WITH DRY NITROGEN WAIT EVACUATE CHECK FOR TIGHT, DRY SYSTEM (IF IT HOLDS A VACUUM) CHARGE SYSTEM Fig. 436 Capacity Pipe Size Standard Max.
Page 39: Checklist And Operation Test
INSTALLATION Checklist and Operation Test Check Unit following Installation Items to be checked Possible malfunction Has the unit been The unit may drop, shake or installed ﬁrmly? emit noise. Have you done the It may cause insufﬁcient cooling refrigerant leakage test? (heating) capacity.
Page 40: Maintenance
MAINTENANCE Fig. 501...
Page 41 MAINTENANCE The following is a deep cleaning and must be completed by a professional. Usera are strictly forbidden operate privately, otherwise they will be at their own risk. Cut off the power supply by moving the power switch In the dlnictlon of the arrow.
Page 42 MAINTENANCE L'.h The followlng 18 a deep cleanlng and must be completed by a professlonal. L'.h Users ara strlctly forbidden to operate prlvately, otherwise they wlll be at their own risk. Remove the acrews of the air duct. (G poaltlon and H poaltlon) screws.
Page 43: Troubleshooting
TROUBLESHOOTING Diagnostic Codes Outdoor Unit When the unit has the following trouble and the compressor stops running, The LED of outdoor control board will show the error sequence automatically: Diag Outdoor Failure Description LED1 LED2 LED3 the root cause my be one of the following Code Mark description: the lights flash every second for the following faults Outdoor coil temperature sensor...
Page 44 TROUBLESHOOTING Diagnostic Codes Outdoor Unit Diag Outdoor Failure Description LED1 LED2 LED3 the root cause my be one of the following Code Compressor drive faulted BLINKS BLINKS a.the outdoor drive board failed. b.the compressor failed. c. the outdoor control board failed. Outdoor fan motor locked rotor BLINKS BLINKS...
Page 45: Outdoor Unit When The Compressor Is In Operation
TROUBLESHOOTING Diagnostic Codes Outdoor Unit When The Compressor Is In Operation THE FLASH IS 1 SECOND LED1 LED2 LED3 Reasons for the current operating frequency of the compressor is limited BLINK BLINK BLINK Normal frequency rising and decreasing, no limitation Frequency decreasing or prohibition of frequency rising caused by over-current Frequency decreasing or prohibition of...
Page 46: Indoor Unit
TROUBLESHOOTING Diagnostic Codes Indoor Unit The the indoor display board will show the error code automatically when the unit has the following trouble: Error Power Timer Running Sleep Code Content The root cause is may be one of the following the error code will display a.
Page 47 TROUBLESHOOTING Diagnostic Codes Indoor Unit Error Power Timer Running Sleep Code Content The root cause is may be one of the following BLINK Maximum current a.the outdoor control board is short circuited. protection b.the drive board is short circuited. c. other components are short circuited. BLINK Communication trouble a.
Page 48 TROUBLESHOOTING Diagnostic Codes Indoor Unit Error Power Timer Running Sleep Code Content The root cause is may be one of the following 1. The wiring of the sensor for the expansion valve A (thin tube) connect loose; 2. The sensor for the expansion A(thin tube) has failure;...
Page 49: Led Display
TROUBLESHOOTING Diagnostic Codes Led Display Error Power Timer Running Code Content The root cause is may be one of the following Normal BLINK The failure for temperature a. The outdoor temperature sensor loose. sensor of outdoor coil b. The outdoor temperature sensor failed. c.
Page 50 TROUBLESHOOTING Diagnostic Codes LED Display Error Power Timer Running Code Content The root cause is may be one of the following Anti-freeze protection a.the indoor coil temperature sensor connector loose. with cooling or overload b.the indoor coil temperature sensor failed. protection with heating in c.the indoor control board failed.
Page 51 TROUBLESHOOTING Diagnostic Codes LED Display Error Power Timer Running Code Content The root cause is may be one of the following BLINK BLINK Indoor EEPROM failure a. The EEPROM chip loose; b. The indoor control board failed. BLINK BLINK Indoor fan motor run a.
Page 52: Test The Jumper Terminals
TROUBLESHOOTING Test the jumper terminals Outdoor Unit Verification of Operation and Testing: When powered on, if there is a probability that the outdoor unit is malfunctioning, or to rule out field wiring, the terminals below can be jumped to engage the outdoor unit in normal cooling operation. Application: Jump these terminals to engage cooling for the outdoor unit.
Page 53: Protection Circuit Fault Isolation
TROUBLESHOOTING Protection Circuit Fault Isolation Protection diagnosis of the complete machine (all types of protection during operation, i.e. under-voltage, over-voltage and overcurrent protection) Note:List all types of protection that may occur to the complete machine and describe the conditions and signs of the start, course and end of such protection.
Page 54: Compressor Fault Isolation
TROUBLESHOOTING Compressor Fault Isolation Judging the connecting terminals of inverter compressor: It is impossible to identify terminals U, V and W of inverter compressor with multi-meter. Just connect the terminals in the same way as the original unit when replacing the compressor. A wrong connection will lead to reverse and loud noise of the compressor.
Page 55: Unit Does Not Run
TROUBLESHOOTING Unit does not run Switch on the power supply Does it receive the Is the remote Does the screen remote controller controller display normally? signal? setting right? Is the fuse (3.5A/250V) Check the code blown? Is the remote controller in good Replace the batteries condition? Are the wires...
Page 56: Error Code 39-Dc Fan
TROUBLESHOOTING Error Code 39-DC FAN Error code 39 Indoor fan motor trouble DC Fan Set the air conditioner operate in fan mode Does fan motor Check the connector of stop following the Is indoor fan motor indoor motor connected remote controller running? tightly or not order?
Page 57: Error Code 39
TROUBLESHOOTING Error Code 39-PG Fan Error code 39 Indoor fan motor trouble PG Fan Set the air conditioner operate in fan mode Does fan motor Check the connector of stop following the Is indoor fan motor indoor motor connected remote controller running? tightly or not order?
Page 58 TROUBLESHOOTING Error Code 9 Error code 9 Maximum current protection Is the windings of the Compressor conpressor right or fault,replace the not(eath winding and compressor winding to the earth) The outdoor control board fault,replace the board Fig. 707...
Page 59 TROUBLESHOOTING Error Code 13 Error Code 8 Fig. 708...
Page 60 TROUBLESHOOTING Error Code 15 Compressor protection device is Error 15 open. Wait to see if it resets. Compressor shell temperature A feel test on compressor should too high protection con rm when cool. If device is still open, replace device. Is the protector plug connected to the CN902 Reconnect the plug...
Page 61: Error Code 16 Cooling Mode
TROUBLESHOOTING Error Code 16 Cooling Mode Error code 16 cooling mode Anti-freeze protection indoor unit Is indoor heat Check the coil Change the indoor exchanger iced up? sensor right or not board Change the coil Refrigeration system protection,check the sensor air inlet and outlet of indoor unit Error Code 16 Heating Mode Error code 16 heating mode...
Page 62 TROUBLESHOOTING Error Code 20 DC fan motor test point: Fig. 711...
Page 63: Error Code 33
TROUBLESHOOTING Error Code 33 Error code 33 Take out the red Indoor connector temperature sensor.Measure the Does the resistance sensor resistance of sensor Replace the of the sensor have indoor control the characteristics on board Error Code 34 Take out the white sensor parameter Error code 34 connector...
Page 64: Error Code
TROUBLESHOOTING Error Code 19 Error code 19 Compressor drive in trouble Is fastening screw fastening of IPM fastened? Check the wiring Corrent the connection between main or replace the wires control board and connectors and compressor Change the control Check the board or replace it Replace the fan or the Check the outdoor fan is...
Page 65 TROUBLESHOOTING Error Code 19 test point: Forward of IPM P-U/P-V/P-W test : Reverse of IPM P-U/P-V/P-W test: Forward of IPM N-U/N-V/N-W test : Reverse of IPM N-U/N-V/N-W test : Fig. 714...
Page 66 TROUBLESHOOTING Error Code 19 test point: The resistance of the compressor U-W\V-W Values should be +/- 0.1 (Ohms) between phases. Fig. 715...
Page 67 TROUBLESHOOTING Error Code 36 E36 Error Does communica�on wiring meet speciﬁca�ons? Replace wiring 14 gauge stranded wiring rated as required. for 600v Are there any junc�on boxes or Replace wiring splices in the wiring except for as required. code required disconnects? Is Wiring connected to the proper terminals? Correct wiring...
Page 68 TROUBLESHOOTING Error Code 36 Fig. 716...
Page 69: Blank Display/Indoor Unit Door Micro Switch
TROUBLESHOOTING Blank Display/Indoor Unit Door Micro Switch If the Display is blank, check to see if the door is properly closed. If the door is properly closed, confirm that you have proper line voltage to the indoor unit. If the indoor unit door is not properly closed, or if the door micro switch has malfunctioned the display may be blank. See Figure 717 When the micro‑switch is not engaged, and the power button is depressed, there will be no display and the system will not operate or respond in any way.See Figure 718.
Page 70 TROUBLESHOOTING Blank Display/Indoor Unit Door Micro Switch When the Timer On/Clock button is pressed you will see a temperature on the display, but still no system operation. After a few seconds, the display will drop the temperature leaving just the Wi‑Fi and Timer icons. Still no indoor unit operation. See Figure 719. Fig.
Page 71: Components Testing
COMPONENTS TESTING Compressor OVERLOAD PROT ECTION INVERTER POWER & CONTROLLER Resistance Test. The compressor is at fault if the resistance of winding is 0(short circuit)or∞ open circuit. Common signs compressor is faulty: • Compressor motor lock. • Discharge pressure value approaches static pressure value . •...
Page 72: Eev Stepper Coil
COMPONENTS TESTING EEV Stepper Coil Discharge pipe temperature is too high. This means the compressor is over heating and will shut down and lock itself out. The cause for this issue is lack of refrigerant coming back to the compressor to cool the compressor. The main causes of this would be low charge, restriction or issue with the electronic expansion valve (EEV).
Page 73: Fan Motor
COMPONENTS TESTING Fan Motor...
Page 74 COMPONENTS TESTING Fan Motor Resistance Test. Test the resistance of the main winding. The indoor fan motor is faulted if the resistance of main winding 0 (short circuit)or ∞ open circuit. DC Voltage test Manually rotate indoor fan motor slowly for several revolutions, and measure voltage “YELLOW” and “GND” on motor. The voltage repeats 0V DC and 5V DC.
Page 75: Printed Circuit Board Diagram Lookup Chart
COMPONENTS TESTING Printed Circuit Board Diagram Lookup Chart Model Indoor Unit Indoor Unit Outdoor Unit Outdoor Unit Printed Voltage Number Printed Circuit Circuit Board Board FPHW091 FPHSW09A1A, 1833235 FPHSR09A1A OU-PCB-SYD/SVE FPHSW09A1B FPHW093 FPHFW09A3A, 1833235 FPHSR09A3A OU-PCB-SYD/SVE 208/230 FPHFW09A3B 1898224 1878005...
Page 76: Printed Circuit Board (Indoor)
COMPONENTS TESTING Printed Circuit Board (Indoor) Interface of PG motor Room temperature sensor Pipe temperature sensor Switch button Feedback from PG motor Up down swing Left right swing Wiring control or wifi interface Display interface 10 Protective tube Figure 609 (9-18k units) 1833235 Indoor Unit Printed Circuit Board Identification Interface of PG motor...
Page 77 COMPONENTS TESTING Printed Circuit Board (Indoor) Interface of ID motor Room/and Pipe temperature sensor Switch button Vane Steppers Fuse Figure 611 (36k units) 1836919 Indoor Unit Printed Circuit Board Identification...
Page 78: Printed Circuit Board (Outdoor)
COMPONENTS TESTING Printed Circuit Board (Outdoor) Terminal of compressor U Outdoor ambient phase temperature sensor Terminal of compressor V Terminal of 4-way valve phase Terminal of compressor W Terminal of heater phase Terminal of DC fan communication wire to terminal block Terminal of electronic Terminal of nuetral wire to expansion valve...
Page 79 COMPONENTS TESTING Printed Circuit Board (Outdoor) Terminal of compressor 4-way valve terminal U/V/W phase Terminal of reactor Terminal of electronic expansion valve Terminal of reactor Outdoor ambient temperature sensor Terminal of signal Outdoor pipe temperature wire,connect to the terminal sensor panel "3(SI)"...
Page 80 COMPONENTS TESTING Printed Circuit Board (Outdoor) Terminal of reactor Terminal of electronic expansion valve Terminal of compressor DRED Function Terminal of DC fan Terminal of AC fan Heat Sink temperature Cool Valve terminal sensor PressureProtector Heater terminal Compressor discharge 4-way valve terminal temperature sensor Outdoor ambient Terminal of communication...
Page 81: R-410A Sealed System Repair
R-410A SEALED SYSTEM REPAIR Service Valves Appearance 2-way Valve (Liquid Side) 3-way Valve (Gas Side) Valve cap Hexagonal wrench (4mm) Open position Flare nut Flare nut Closed position Open position Closed position piping piping Service Service connection connection port cap port To outdoor unit To outdoor unit...
Page 82: Gas Charging (After Repair)
R-410A SEALED SYSTEM REPAIR Gas Charging (After Repair) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open OPEN CLOSE This is di erent from previous procedures. – Connect the charge hose which you dis-connected from the Because you are charging with liquid refrigerant vacuum pump to the valve at the bottom of the cylinder.
Page 83: Pumping Down
R-410A SEALED SYSTEM REPAIR Pumping Down Liquid side Indoor unit Outdoor unit Open 2-Way valve Gas side Open 3-Way valve CLOSE CLOSE Purge the air – Do this quickly so that the gauge ends up indicating 0-15 PSI. – Remove the valve stem caps and conﬁrm that the valve stems are in the raised position.
Page 84: Wiring Diagrams
WIRING DIAGRAMS Wiring Diagram Lookup Table Model Number Indoor Unit Indoor Unit Wiring Outdoor Unit Outdoor Unit Voltage Diagram Wiring Diagram FPHW091/A FPHSW09A1A, 1912241 FPHSR09A1A 1912204 FPHSW09A1B FPHW093/A FPHFW09A3A, 1854605 FPHSR09A3A 1854707 208/230 FPHFW09A3B 1912241 1907790 FRHW093/A FRHSW09A3A, 1854605 FRHSR09A3A...
Page 85: Indoor Units
WIRING DIAGRAMS Indoor Units Figure 801 FPHSW09A1A, FPHSW09A1B, FPHFW09A3A, FPHFW09A3B, FPHFW12A3A, FPHFW12A3B, FRHSW12A3A, FRHSW12A3B, FPHFW18A3A, FPHFW18A3B Figure 802 FPHFW09A3A, FPHFW09A3B...
Page 86 WIRING DIAGRAMS Indoor Units Figure 803 FPHFW18A3A, FPHFW18A3B, FPHFW24A3A, FPHFW24A3B Figure 804 FPHSW36A3A, FPHSW36A3B, FPHSW36A3C...
Page 87: Outdoor Units
WIRING DIAGRAMS Outdoor Units Figure 805 9-36K Outdoor Units...
Page 88 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 customer service at (1-800-541-6645).
Page 89: Appendix
APPENDIX Appendix 1: Reference Sheet of Celsius and Farenheit Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius Celsius Celsius temperature temperature temperature 60.8 69/70 69.8 78/79 78.8 62/63 62.6 71/72 71.6 80/81 80.6 64/65 64.4 73/74 73.4 82/83 82.4 66/67 66.2...
Page 90: Appendix 2: Pipe Expanding Method
APPENDIX Appendix 2: Pipe Expanding Method Pipe Pipe cutter Leaning Uneven Burr A:Cut the pip Conﬁrm the pipe length according to the distance of indoor unit and outdoor unit. Cut the required pipe with pipe cutter. B:Remove the burrs Pipe Shaper Remove the burrs with shaper and prevent the burrs from getting into the pipe.
Page 91: Appendix 3 Resistance Table Of Indoor Coil And Indoor Room Sensor
APPENDIX Appendix 3 Resistance Table Of Indoor Coil And Indoor Room Sensor The Resistence Table of Outdoor Coil and Outdoor Air Sensor R(32F)=15k B(0/100)=3450 Temp. Resistance Voltage Temp. Resistance Voltage Temp. Resistance Voltage (°F) (kΩ) (°F) (kΩ) (°F) (kΩ) 38.757 0.58143512 64.4 7.051...
Page 92: Resistance Table Of Outdoor Compressor Temperature Sensor
APPENDIX Resistance Table Of Outdoor Compressor Temperature Sensor R(32F)=187.25k B(0100)=3979 Temp. Resistance Voltage Temp. Resistance Voltage Temp. Resistance Voltage (°F) (kΩ) (°F) (kΩ) (°F) (kΩ) 542.867 0.06185563 64.4 78.854 0.39694585 132.8 6.624 2.532777116 -2.2 512.839 0.06543004 66.2 75.381 0.41372093 134.6 6.414 2.573028606 -0.4...
Page 93: Limited Warranty
FRIEDRICH will repair or replace, at its option, any defective part without charge for the part.
Page 94 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.

Friedrich FPHW091 Service Manual

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