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Friedrich Floating Air Select FSHW091C Service Manual
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Friedrich Floating Air Select FSHW091C Service Manual

Friedrich Floating Air Select FSHW091C Service Manual

Ductless floating air select single zone r- 32 refrigerant
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System
Wall Mounted Unit
Outdoor Unit
96122000_00
1
Ductless
Floating Air
Single Zone
R- 32 Refrigerant
115-Volt:
230-Volt:
115-Volt:
230-Volt:
115-Volt:
230-Volt:
THE EXPERTS IN ROOM AIR CONDITIONING
Select
®
FSHW091C, FSHW121C
FSHW183D, FSHW243D, FSHW36D
FAHFW09A1C, FAHFW12A1C
FAHFW18A3D, FAHFW24A3D, FAHSW36A3D
FSHSR09B1C, FSHSR12B1C
FSHSR18B3D, FSHSR24B3D, FSHSR36B3D

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Summary of Contents for Friedrich Floating Air Select FSHW091C

  • Page 1 Ductless Floating Air Select ® Single Zone R- 32 Refrigerant System 115-Volt: FSHW091C, FSHW121C 230-Volt: FSHW183D, FSHW243D, FSHW36D Wall Mounted Unit 115-Volt: FAHFW09A1C, FAHFW12A1C 230-Volt: FAHFW18A3D, FAHFW24A3D, FAHSW36A3D Outdoor Unit FSHSR09B1C, FSHSR12B1C 115-Volt: FSHSR18B3D, FSHSR24B3D, FSHSR36B3D 230-Volt: THE EXPERTS IN ROOM AIR CONDITIONING 96122000_00...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Table of Contents INTRODUCTION Important Safety Information Personal Injury Or Death Hazards Model And Serial Number Location Model Identification Guide Serial Number Reference Guide SPECIFICATION 9-12k System C Models 18-36k System D Models Room Size Restriction Indoor Unit Clearances Outdoor Unit Clearances Dimensions Indoor Unit FAHSW09A1C, FAHSW12A1C, FAHFW09A3D, FAHFW12A3D...
  • Page 3 230v Indoor Unit with A2L Sensor Capability FAHFW18A3D, FAHFW24A3D, FAHSW36A3D 230v Indoor Unit Without A2L Sensor Capability FAHFW18A3D, FAHFW24A3D, FAHSW36A3D 115v Outdoor Unit FPHSR09A1C, FPHSR12A1C 230V Outdoor Unit FSHSR18A3D, FSHSR24A3D, FSHSR36A3D FSHSR36A3D APPENDIX Interactive Parts Viewer Limited Warranty Thermistor Resistance Values Friedrich Authorized Parts Depots...

  • Page 4: Introduction

    Installation procedures are not given in this manual. They are given in the Installation/Operation manual which can be acquired 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 5: Personal Injury Or Death Hazards

    INTRODUCTION Personal Injury Or Death Hazards WARNING AVERTISSEMENT ADVERTENCIA SAFETY Do not remove, disable Ne pas supprime, désacti- No eliminar, desactivar o or bypass this unit’s ver ou contourner cette pasar por alto los dispositi- FIRST safety devices. Doing so l´unité...

  • Page 6: Mechanical Hazards

    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 7 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.

  • Page 8: Model And Serial Number Location

    INTRODUCTION Model And Serial Number Location Indoor Unit On side of Unit Figure 101 (Indoor Unit Model Nameplate location) Outdoor Unit On side of Unit Figure 102 (Indoor Unit Model Nameplate location)

  • Page 9: Model Identification Guide

    Optional hard-wired controller for Floating Air wall-mounted and cassette indoor models. MONTH OF MANUFACTURE Included with concealed ducted models. Not compatible with AHU indoor models. See your 01 = JANUARY FACTORY DESIGNATION Friedrich representative for options. 02 = FEBRUARY M = FRIEDRICH MTY 03 = MARCH 04 = APRIL...

  • Page 10: Specification

    SPECIFICATION 9-12k System C Models FAC Model Set FSHW091C FSHW121C Model FAC Indoor Model Unit FAHSW09A1C FAHSW12A1C FAC Outdoor Model FSHSR09B1C FSHSR12B1C Power Supply V/ph/Hz 115V~,60Hz,1P Energy Star Standard Energy Star -Cold Climate Performance Rated Capacity at 95℉ Btu/h 9000 12000 Cooling Capacity Range(MIN-MAX) Btu/h...

  • Page 11: Specifications

    SPECIFICATIONS 9-12k System C Models FAC Model Set FSHW091C FSHW121C Model FAC Indoor Model Unit FAHSW09A1C FAHSW12A1C FAC Outdoor Model FSHSR09B1C FSHSR12B1C Model DG13Z1D-06 DG13Z1D-06 Outdoor Fan Output Motor Capacitor μF Speed (Hi) r/min Cooling (A) 10.7 Rated Current Heating (A) Electrical MOP(Rating of Overcurrent Protective Device MCA(Minimum Circuit Ampacity)
  • Page 12 SPECIFICATIONS 9-12k System C Models FAC Model Set FSHW091C FSHW121C Model FAC Indoor Model Unit FAHSW09A1C FAHSW12A1C FAC Outdoor Model FSHSR09B1C FSHSR12B1C inches 1/8ths 28 1/8 ×21 2/8 ×9 4/8 28 1/8 ×21 2/8 ×9 4/8 Dimension (WxHxD) 715x540x240 715x540x240 inches 1/8ths 32 5/8 ×23 1/8 ×13 3/8 32 5/8 ×23 1/8 ×13 3/8...

  • Page 13: 18-36K System D Models

    SPECIFICATION 18-36k System D Models FAC Model Set FSHW183D FSHW243D FSHW363D Model FAC Indoor Model Unit FAHFW18A3D FAHFW24A3D FAHSW36A3D FAC Outdoor Model FSHSR18B3D FSHSR24B3D FSHSR36B3D Power Supply V/ph/Hz Energy Star Standard Energy Star -Cold Climate Performance Rated Capacity at 95℉ Btu/h 18000 24000...
  • Page 14 SPECIFICATION 18-36k System D Models FAC Model Set FSHW183D FSHW243D FSHW363D Model FAC Indoor Model Unit FAHFW18A3D FAHFW24A3D FAHSW36A3D FAC Outdoor Model FSHSR18B3D FSHSR24B3D FSHSR36B3D Model ZW511A800002 DG13Z2D-06 DG13Z2D-06 Outdoor Fan Output Motor Capacitor μF Speed (Hi) r/min Cooling (A) 10.0 16.2 Rated Current...
  • Page 15 SPECIFICATION 18-36k System D Models FAC Model Set FSHW183D FSHW243D FSHW363D Model FAC Indoor Model Unit FAHFW18A3D FAHFW24A3D FAHSW36A3D FAC Outdoor Model FSHSR18B3D FSHSR24B3D FSHSR36B3D inches 31 7/8 ×23 ×11 33 7/8 ×25 5/8 ×12 2/8 35 3/8 ×29 4/8 ×13 3/8 1/8ths Dimension (WxHxD) 810x585x280...

  • Page 16: Room Size Restriction

    If rooms are connected by opening that people can walk through but with no door installed, those areas can be considered one space. Installing an approved Friedrich A2L sensor on the indoor unit allows for installation in space if exceeding room size.

  • Page 17: Indoor Unit Clearances

    Installation Instructions / SPECIFICATIONS Installation diasram Indoor Unit Clearances Distance from ceiling should be over 7.9in Distance from wall '\.!,. should be over 2in Distance from the wall Distance from the obstacle should be over 9.8ft. should be over 2in Distance from floor should be over 6 ft.

  • Page 18: Dimensions Indoor Unit

    SPECIFICATIONS Dimensions Indoor Unit FAHSW09A1C, FAHSW12A1C, FAHFW09A3D, FAHFW12A3D ALL DIMENSIONS GIVEN IN INCHES (") 33 7/8 Air Inlet 8 3/8 28.5 2 3/4 2 3/8 Tube Exit 7 1/4 7 1/2 Ceilng 26 1/2 20 5/8 > 7 7/8 2 5/8 2 3/4 2 5/8 >...

  • Page 19: Fahfw18A3D, Fahfw24A3D

    SPECIFICATIONS Dimensions Indoor Unit FAHFW18A3D, FAHFW24A3D 44 1/8 ALL DIMENSIONS GIVEN IN INCHES (") CEILING 45 1/4 10 1/8 38 1/4 TUBE EXIT 38 1/4 3 3/8 2 1/4 AIR INLET 23 7/8 27 3/4 37 1/2 CEILING 28 7/8 >...

  • Page 20: Fahsw36A3D

    SPECIFICATIONS Dimensions Indoor Unit FAHSW36A3D 52 5/8 ALL DIMENSIONS GIVEN IN INCHES (") 50 1/2 10 3/4 52 1/8 2 3/8 44 7/8 3 5/8 1 5/8 32 1/4 9 1/4 1 3/4 31 1/8 31 1/8 9 3/8 11 3/4 32 1/4 Figure 207 (36k Indoor Unit Dimensions)

  • Page 21: Dimensions Outdoor Unit

    SPECIFICATIONS Dimensions Outdoor Unit FSHSR09B1C, FSHSR12B1C 30 1/4 28 1/8 3 1/4 3 5/8 10 1/2 31 1/8 16 3/4 All Dimensions are given in inches (") 4 7/8 18 7/8 Figure 208 (9K-12k Indoor Unit Dimensions)

  • Page 22: Fshsr18A3D

    SPECIFICATIONS Dimensions Outdoor Unit FSHSR18A3D 11 1/4 Pipe size(Φ1/4) 32 1/8 2 3/8 Pipe size(Φ1/2) 3/4 DRAIN PORT 3 5/8 20 1/8 Figure 208 (18k Outdoor Unit Dimensions)

  • Page 23: Fshsr24A3D

    SPECIFICATIONS Dimensions Outdoor Unit FSHSR24A3D Pipe size(Φ3/8) Pipe size(Φ5/8) Figure 209 (24k Outdoor Unit Dimensions)

  • Page 24: Fshsr36A3D

    SPECIFICATIONS Dimensions Outdoor Unit FSHSR36A3D 5 3/4 1/8 x 3/8 x 3/4 1 1/2 21 1/4 2 3/8 13 1/2 4 7/8 2 7/8 35 5/8 4 7/8...

  • Page 25: Installation Of The Indoor Unit

    INSTALLATION OF THE INDOOR UNIT Pre-Installation Checkpoints • Ensure there are no obstacles near the air outlet and air can be easily blown to every corner. • Where piping and wall hole can be easily arranged. • Keep the required space from the unit to the ceiling and wall according to the installation diagram on previous page.

  • Page 26: Install Mounting Plate

    INSTALLATION OF THE INDOOR UNIT Install Mounting Plate WARNING WARNING Fire Hazard Refigeration System Under High Pressure A2L refrigerant is classified as mildly flammable. Temperatures on surfaces that may Do not puncture, heat, expose to flame or be exposed to leakage of FLAMMABLE incinerate.

  • Page 27: Drill Hole For Piping

    INSTALLATION OF THE INDOOR UNIT Install Mounting Plate 8 in. or more to ceiling Indoor unit outline 2 in. or more 2 in. or more ! to wall i towall Pipe hole Pipe hole For 18K/ 24K Series Models, WIDTH: 37 5/ 38 in. Installation instructions / C.

  • Page 28: Piping Provisions

    INSTALLATION OF THE INDOOR UNIT Fig. C.5 Piping Provisions 3. Piping Provision 1) Put the piping (liquid and gas pipe) and cables through the wall hole from outside or put them through from inside after indoor piping and cables connection is complete to connect to the outdoor unit. 2) Decide whether to cut the knockout plate in accordance with the piping direction.
  • Page 29 Fig. C.6.4 Fig. C.6.5 Fig. C.7.1 INSTALLATION OF THE INDOOR UNIT Indoor Unit Installation 4. Indoor Unit Piping Installation 1) Hang the unit onto mounting plate (Fig. C.7.1). Indoor unit installation 2) In the A position, open the front panel as shown in Fig. C.7.2. 3) In the B position, open the screw covers as shown in Fig.
  • Page 30 INSTALLATION OF THE INDOOR UNIT Installation instructions / Indoor Unit Installation Indoor unit installation 6) Connect the piping Piping Connection: Small sealing cap Before unscrewing the big and the small sealing caps, press the small sealing cap with the finger until the exhaust noise stops, and then loosen ' '9----.
  • Page 31 INSTALLATION OF THE INDOOR UNIT Indoor Unit Installation ( Indoor unit installation The 18K/24K indoor unit include the switch tie-in accessory -..___ Gas valve only for 18K/24K indoor if required. It may switch 3/8" gas connection tube into 1/2" or 5/8" connection tube. ·.�...
  • Page 32 Installation instructions / INSTALLATION OF THE INDOOR UNIT Indoor Unit Installation Indoor unit installation 10) Pull the baffles as shown in Fig. C.5.20 Close the front shell as shown in Fig. C.5.21 . Then press the E position to fasten the front shell as shown in Fig. C.5.22 Fig.

  • Page 33: Electrical

    INSTALLATION OF THE INDOOR UNIT Electrical Model Wire Diameter(AWG) WARNING Interconnecting Wire 14-4 AWG 600V THHN Stranded Wire Electrical Shock Hazard 14-4 AWG 600V THHN Stranded Wire Always ensure power is 14-4 AWG 600V THHN Stranded Wire disconnected before attempting 24-36K 14-4 AWG 600V THHN Stranded Wire to connect wires.

  • Page 34: Indoor Unit Wiring Connection Diagram

    Diagram is reference only, actual product terminals should be followed.

  • Page 35: Installation Of The Outdoor Unit

    INSTALLATION OF THE OUTDOOR UNIT Tools Verify with tool manufacturers that all tools used during servicing of the refrigerant are non-sparking and can be used with A2L Refrigerants. No halide torches for leak testing. Refrigerant monitors or detectors must be used to detect refrigerant in the work area. •...

  • Page 36: Clearances

    INSTALLATION OF THE OUTDOOR UNIT Clearances Distance from any obstacle should be over 20 inches from the top of the unit Air intake distance from the wall should be over 10 inches. Over 10 inches Over 10 inches Figure C.2...

  • Page 37: Pre-Installation Checkpoints

    INSTALLATION OF THE OUTDOOR UNIT Pre-Installation Checkpoints • Location is convenient to install and well ventilated. • Avoid installing it where flammable gas could leak. • Keep the required distance from walls and other obstacles. • Keep the outdoor unit away from grease and debris. •...

  • Page 38: Unit Installation

    Unit Installation INSTALLATION OF THE OUTDOOR UNIT Condensate Drain for Outdoor Unit Install Condensate Drain Piping Connections to Outdoor Unit Install Condensate Drain for Outdoor Unit 1. Remove service valve cover( if provided) to access the service valves ensate drains from the outdoor unit when the unit operates in heating mode. The condensate drains from the outdoor unit when the unit operates in and refrigerant ports.

  • Page 39: Specifications

    INSTALLATION OF THE OUTDOOR UNIT Specifications Model Wire Diameter(AWG) Main Power Supply To Outdoor Unit Interconnecting Wire between Indoor and Outdoor Unit Wire Size MOP (Rating of Over MCA (Minimum Circuit current Device) Ampacity) FSHSR09B1C 14-4 AWG 600V THHN Stranded Wire Refer to MCA and local/ 14.6A national codes...

  • Page 40: Wiring Diagrams

    INSTALLATION OF THE OUTDOOR UNIT Wiring Diagrams Diagram is reference only, actual product terminals should be followed.

  • Page 41: Leak Check, Evacuation, And Charging

    INSTALLATION OF THE OUTDOOR UNIT Leak Check, Evacuation, and Charging • If there is any amount of refrigerant in the system charge from the low side. Warning: Always charge by liquid inverted. • 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.
  • Page 42 Leak Check, Charging And 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 750 psi be used.

  • Page 43: Startup And Operation

    Present the owner or operator of the equipment with the Installation & Operation Manual, all accessory installation instructions, and the name, address, and telephone number of the Authorized Friedrich Warranty Service Company in the area for future reference if necessary. Inspect the unit for any damage to the coils and tubing that could cause a leak.

  • Page 44: Operation

    OPERATION Operation Range (Cooling and Heating) Temperature Cooling operation Heating operation Indoor temperature 90˚F 81˚F 70˚F 45˚F outdoor temperature 115˚F 75˚F 5˚F -4˚F Figure 301 *Optimum performance will be achieved within these operating temperature. If air conditioner is used outside of the above conditions, the protective device may trip and stop the appliance.

  • Page 45: Remote Control

    OPERATION Remote Control Figure 302...
  • Page 46 OPERATION Remote Control...
  • Page 47 OPERATION Remote Control...
  • Page 48 OPERATION Remote Control...
  • Page 49 OPERATION Remote Control...
  • Page 50 OPERATION Remote Control...
  • Page 51 OPERATION Remote Control...
  • Page 52 OPERATION Remote Control...
  • Page 53 OPERATION Remote Control...
  • Page 54 OPERATION Remote Control...

  • Page 55: Unit Function

    OPERATION Unit Function 1. Major general technical parameters • Remote receiver distance (front of the air conditioner): 25 feet. • Remote receiver angle: Less than 60 degrees. • Temperature control accuracy: ±2.4°F. • Time error: Less than 1%. 2. Functions of the controller •...
  • Page 56 OPERATION Unit Function • Cooling-run mode Outdoor Fan The outdoor fan’s speeds except the single speed motor can be changed according to outdoor ambient temperatures. When operating at a fixed frequency, the outdoor fan is forced to operate 7.2ºF at the high speed. Indoor fan (1) When the indoor fan is running, this operation state could be controlled by the remote control with High, Medium, Low and Automatic setting.
  • Page 57 OPERATION Unit Function Air flow direction control The horizontal louver is controlled by a step motor, press the SWING button to swing or stop the louver. During the louver run in normal operation, the current position will be stored. When the appliance turns off and louver swings automatically to the default position, it will position at the default position plus 5º.

  • Page 58: Special Function Instruction

    OPERATION Special Function Instruction 1 1 ． ． M M a a j j o o r r g g e e n n e e r r a a l l t t e e c c h h n n i i c c a a l l p p a a r r a a m m e e t t e e r r s s 1.1 Remote receiver distance（front of the air conditioner）: 25 ft.
  • Page 59 OPERATION Special Function Instruction 3 3 . . 2 2 H H e e a a t t i i n n g g A A n n t t i i - - C C o o l l d d A A i i r r P P r r o o t t e e c c t t i i o o n n When the heating mode is turned on, to avoid discomfort caused by cold air blowing out immediately after startup, a cold air prevention function is set.
  • Page 60 OPERATION Special Function Instruction 3 3 . . 3 3 C C o o n n t t r r o o l l o o f f I I n n d d o o o o r r M M o o t t o o r r S S p p e e e e d d D D u u r r i i n n g g H H e e a a t t i i n n g g P P r r o o c c e e s s s s During the heating process, the indoor fan speed operates based on the coil temperature according to the following mode.
  • Page 61 OPERATION Special Function Instruction 3 3 . . 4 4 C C o o n n t t r r o o l l M M e e t t h h o o d d o o f f I I n n d d o o o o r r M M o o t t o o r r D D u u r r i i n n g g C C o o o o l l i i n n g g During cooling, the indoor fan speed can be controlled using the remote control.
  • Page 62 OPERATION Special Function Instruction 4 4 . . 1 1 C C o o n n t t r r o o l l o o f f O O u u t t d d o o o o r r M M o o t t o o r r S S p p e e e e d d D D u u r r i i n n g g C C o o o o l l i i n n g g During cooling, the outdoor motor speed operates as follows: When the outdoor motor is a single-speed motor, it defaults to high speed.
  • Page 63 OPERATION Special Function Instruction 6 6 . . H H e e a a t t i i n n g g L L o o w w - - t t e e m m p p e e r r a a t t u u r r e e P P r r o o t t e e c c t t i i o o n n When the outdoor environment is extremely cold, it will trigger outdoor low-temperature protection, and its operation is as follows: T1: Heating outdoor low-temperature protection temperature Outdoor ambient...
  • Page 64 OPERATION Special Function Instruction 8 8 . . H H e e a a t t i i n n g g a a t t 46°F When the machine receives the 46°F heating function command from the remote control, it will operate in the following manner: Machine Receiving Information Machine operation status The remote control activates the 46°F heating...
  • Page 65 OPERATION Special Function Instruction 1 1 0 0 . . I I n n d d o o o o r r S S e e l l f f - - C C l l e e a a n n i i n n g g The indoor self-cleaning process is as follows: Step Machine Operation Status...
  • Page 66 OPERATION Special Function Instruction 1 1 2 2 、 、 S S i i l l e e n n t t M M o o d d e e Components Operation Compressor Operate within the frequency range set for silent mode Silent Mode Indoor Fan Operate at the silent mode speed setting...
  • Page 67 OPERATION Special Function Instruction Operation Machine Status The compressor stabilizes at the first frequency for a short period of time T after starting. During Startup The compressor increases or decreases its frequency according to the target frequency. After Startup Time Exceeds T The compressor operates at the target frequency while being subject to exhaust protection, high-temperature protection, overcurrent protection, and other mechanisms.
  • Page 68 OPERATION Special Function Instruction 1 1 6 6 . . S S l l e e e e p p M M o o d d e e Sleep mode is valid in cooling, heating (models with heating function), and dehumidification modes, and is invalid in other modes. Sleep mode lasts for 8 hours.

  • Page 69: Maintenance

    MAINTENANCE Fig. 501...
  • Page 70 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 71 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 72: Troubleshooting

    TROUBLESHOOTING Outdoor Unit Diagnostic Codes _ Unit Not Running When the unit has the following trouble and the compressor stops running, The LED of outdoor control board will show the error sequence automatically: Outdoor Failure Description LED1 LED2 LED3 the root cause my be one of the following Mark description: the lights flash every two seconds for the following faults Outdoor coil temperature sensor faulted a.
  • Page 73 TROUBLESHOOTING Outdoor Unit Diagnostic Codes - Unit Not Running Outdoor Failure Description LED1 LED2 LED3 the root cause my be one of the following IPM module protection BLINKS OFF a. The IPM board failed. b. The outdoor fan is broken. c.

  • Page 74: Diagnostic Codes When Compressor Is Running

    TROUBLESHOOTING Outdoor Unit Diagnostic Codes when Compressor is Running THE FLASH IS 1 SECOND LED 1 LED 2 LED 3 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 frequency rising caused by...

  • Page 75: Indoor Unit

    TROUBLESHOOTING Indoor Unit Diagnostic Codes When the unit has the following trouble and the compressor stops running, The LED of outdoor control board will show the error sequence automatically: The indoor display board will show the error code automatically when the unit has the following trouble: When the unit has the following trouble and the compressor stops running, press the sleep button on the remote controller for 10 times in ten seconds and the 7-segment tube of the display board will show the error code as the following, if two malfunctions happened at the same time, the sleep button needs to be pressed 10 times again, the LED will show the other error code.
  • Page 76 TROUBLESHOOTING Diagnostic Codes Indoor Unit Error Content The root cause is may be one of the following Code Compressor exhaust temperature too high a. The compressor exhaust temperature sensor failed. protection. b. The unit refrigerant charge is low Outdoor ambient temperature sensor failure. a.
  • Page 77 TROUBLESHOOTING Diagnostic Codes Indoor Unit Error Content The root cause is may be one of the following Code Indoor EEPROM failure a. The EEPROM chip loose; b. The indoor control board failed. Indoor fan motor runs abnormally. a. Something blocking the indoor fan motor. b.

  • Page 78: 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 over-current 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 79: 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. Resistance of compressor coil: Using an OHM Meter, check resistance from U to V, U to W, and V to W.

  • Page 80: Diagnosis And Solution

    6.7.Diagnosis and Solution 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 (5A/250V) burn? Check the code Is the remote controller in good Replace the batteries condition?

  • Page 81: Error Code 39-Dc Fan

    TROUBLESHOOTING Indoor control board is fault Replace it. 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?

  • Page 82: Error Code 9

    TROUBLESHOOTING Error Code 9 Error code 9 Maximum current protection Check resistance of Compressor the windings. Are fault,replace the they similar to each compressor other and be open to the ground? The outdoor control board fault,replace the board...

  • Page 83: Error Code 13

    TROUBLESHOOTING 4. 4. Error Code 13 Error Code 8...

  • Page 84: Error Code 16 Heating Mode

    TROUBLESHOOTING Error Code 16 Error code 16 cooling mode Anti-freeze protection indoor unit Check the coil Is indoor heat Change the indoor sensor for proper resistance exchanger iced up? board Correct? 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 Overload protection indoor unite...

  • Page 85: Error Code 20

    TROUBLESHOOTING Error Code 20 DC fan motor test point:...

  • Page 86: Error Code 14

    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 Take out the white Error Code 34 sensor parameter Error code 34 connector...
  • Page 87 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 88 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 89 TROUBLESHOOTING Error Code 19 test point: test point: The resistance of the compressor U-W\V-W The resistance of the compressor U-W\V-W Error Code 36 Error code 36 Error code 36 Communication trouble Communication trouble Is the order of all wires Is the order of all wires including the indoor and Adjust the order of wires including the indoor and...
  • Page 90 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 91 TROUBLESHOOTING Error Code 36 Fig. 716...

  • Page 92: Blank Display/ Indoor Micro Switch

    TROUBLESHOOTING Blank Display/ Indoor 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.
  • Page 93 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 dis- play will drop the temperature leaving just the Wi-Fi and Timer icons. Still no indoor unit operation. See Figure 719. Fig.

  • Page 94: 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 95: Component Testing

    COMPONENT TESTING Capillary Tube 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 96: Reversing Valve

    COMPONENT TESTING Reversing Valve A reversing valve is a component of a heat pump that changes the direction of refrigerant flow, allowing the system to function in both heating and cooling modes. WARNING It consists of a pressure-operated, main valve and a pilot valve actuated by ELECTRIC SHOCK HAZARD a solenoid plunger.

  • Page 97: Indoor Fan Motor Testing (230V Models)

    COMPONENTS TESTING Indoor Fan Motor Testing (230v models) Power Check: 1. Turn unit on. WARNING 2. Check indoor fan connector on main PCB. See Indoor Unit Main PCB Terminal ID There are 5 wires: ELECTRIC SHOCK HAZARD Voltage for Power (Red) to Ground (Black) = 310 VDC Turn off electric power before service or Motor Return Voltage (White) to Ground (Black) = 15 VDC installation.

  • Page 98: Indoor Fan Motor Testing (115V Models)

    COMPONENTS TESTING Indoor Fan Motor Testing (115v models) 1. Apply power to unit. WARNING 2. Check voltage at Indoor motor control connector. Indoor Unit Main PCB Terminal ID ELECTRIC SHOCK HAZARD a. White to ground VAC (Should read Supply line Voltage). Turn off electric power before service or b.
  • Page 99 COMPONENTS TESTING Outdoor Fan Motor Testing Resistance Test. 1. Disconnect the outdoor fan motor plug on the main PCB. WARNING See Outdoor Unit - Main PCB ID ELECTRIC SHOCK HAZARD U= Yellow V= Red W= White Turn off electric power before service or installation.

  • Page 100: Indoor Unit Main Pcb Terminal Id (115V)

    COMPONENTS TESTING Indoor Unit Main PCB Terminal ID (115v) FAHFW09A1C, FAHFW12A1C Door Safety Motor Feedback Switch Evaporator Coil Indoor Ambient Vertical Louver Horizontal Louver Auto Start Switch Indoor Fan Motor (SW 101) (X841) (X412) Temp Sensor Temp Sensor (X821) (X823) (X840) (X413) (X405)

  • Page 101: Indoor Unit Main Pcb Terminal Id (No A2L Sensor Capability)

    COMPONENTS TESTING 230v Indoor Unit Main PCB Terminal ID (No A2L Sensor Capability) FAHFW18A3D, FAHFW24A3D, FAHFW36A3D Evaporator Coil Indoor Ambient Indoor Fan Door Safety Vertical Louver Horizontal Louver Auto Start Switch Temp Sensor Temp Sensor (X821) Motor (X842) Switch (X412) (X823) (SW 101) (X413)

  • Page 102: Indoor Unit Main Pcb Terminal Id (With A2L Sensor Capability)

    COMPONENTS TESTING 230v Indoor Unit Main PCB Terminal ID (With A2L Sensor Capability) FAHFW18A3D, FAHFW24A3D, FAHFW36A3D Terminal Identification Table Interface of DC motor Switch Button Panel switch Out-input Pipe temperature Sensor Grid eye Temperature and Humidity Sensor REF SENSOR Room temperature Sensor Display Interface Left &...

  • Page 103: 115V Outdoor Unit - Main Pcb Terminal Id

    COMPONENTS TESTING 115v Outdoor Unit - Main PCB Terminal ID FPHSR09A1C, FPHSR12A1C Reactor Compressor Out (UVW) Yellow Connector CN 904 Outdoor Ambient Temp Sensor Fuse Black Connector CN 905 Condensor Coil Temp Sensor White Connector CN 907 L1/N Compressor Discharge Temp Sensor Reversing Valve Basepan Heat...

  • Page 104: Outdoor Unit - Main Pcb Terminal Id

    COMPONENTS TESTING Outdoor Unit - Main PCB Terminal ID FSHSR18B3D U V W White Connector CN 907 Compressor Discharge Temp Sensor Black Connector CN- 905 Condensor Coil Temp Sensor Yellow Connector CN 904 Outdoor Ambient Temp Sensor Outdoor Reversing Basepan Valve Heater Motor...

  • Page 105: Fshsr24B3D

    COMPONENTS TESTING Outdoor Unit - Main PCB Terminal ID FSHSR24B3D U V W Inductor White Connector CN 907 Compressor Discharge Temp Sensor Black Connector CN- 905 Condensor Coil Temp Sensor Yellow Connector CN 904 Outdoor Ambient Temp Sensor L1 (brown Ground L2 (Blue) SI (Red)

  • Page 106: Fshsr36B3D

    COMPONENTS TESTING Outdoor Unit - Main PCB Terminal ID FSHSR36B3D Compressor Program writing DRED Tooling Model Selection temperature Electronic expansion value Discharge temperature DC-Fan Coil temperature 4-WAY value Outdoor Temperature FUSE Compressor AD-PRESS...

  • Page 107: R-32 Sealed System Repair

    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 108 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.

  • Page 109: Required Equipment

    R-32 SEALED SYSTEM REPAIR Required Equipment ABC Fire Extinguisher Recovery Machine Vaccum Pump Nitrogen Guage Manifold Vaccum Guage Nitrogen Regulator Recovery access tool Pinch off and opening tools Purge hose fittings Process tube adapter kit...

  • Page 110: 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 refrigerants) it is important that best practice is followed since flammability is a consideration.

  • Page 111: 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.

  • Page 112: 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. WARNING: This Product uses R-32 Refrigerant Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.

  • Page 113: Triple Evacuation

    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 31.5 psi be used.

  • Page 114: 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. 2. Recover all refrigerant from the system though the process tubes. Refer Refrigerant Removal, Recovery, and Evacuation Section of this manual).

  • Page 115: Replace The Reversing Valve

    R-32 SEALED SYSTEM REPAIR Replace The Reversing Valve WARNING WARNING HIGH PRESSURE HAZARD EXPLOSION HAZARD Sealed Refrigeration System contains refrigerant The use of nitrogen requires a pressure and oil under high pressure. regulator. Follow all safety procedures and wear protective safety clothing etc. Proper safety procedures must be followed, and PPE must be utilized Failure to follow proper safety procedures...

  • Page 116: Wiring Diagrams

    WIRING DIAGRAMS 115v Indoor Unit FAHSW091AC, FAHSW12A1C Figure 801...

  • Page 117: 230V Indoor Unit With A2L Sensor Capability

    WIRING DIAGRAMS 230v Indoor Unit with A2L Sensor Capability FAHFW18A3D, FAHFW24A3D, FAHSW36A3D Figure 802...

  • Page 118: 230V Indoor Unit Without A2L Sensor Capability

    WIRING DIAGRAMS 230v Indoor Unit Without A2L Sensor Capability FAHFW18A3D, FAHFW24A3D, FAHSW36A3D Figure 803...

  • Page 119: 115V Outdoor Unit

    WIRING DIAGRAMS 115v Outdoor Unit FPHSR09A1C, FPHSR12A1C Figure 804...

  • Page 120: 230V Outdoor Unit

    WIRING DIAGRAMS 230V Outdoor Unit FSHSR18A3D, FSHSR24A3D, FSHSR36A3D Figure 805...

  • Page 121: Fshsr36A3D

    WIRING DIAGRAMS 230V Outdoor Unit FSHSR36A3D...

  • Page 122: Appendix

    APPENDIX 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 Assistance contact Friedrich customer service at (1-800-541-6645). Limited Warranty Current warranty information can be obtained by referring to...

  • Page 123: Temperature Sensor

    5-3. Temperature Sensor APPENDIX Parameter table attached: Thermistor Resistance Values 1. THE PARAMETER OF THE INDOOR COIL AND INDOOR ROOM SENSOR ,THE PARAMETER OF THE OUTDOOR COIL AND OUTDOOR AMBIENT TEMP SENSOR: （R(0)=15k B(0/100)=3450） Temperature(℃) Resistance(k) Voltage(V) Temperature(℃) Resistance(k) Voltage(V) 38.757 0.58143512 4.292...
  • Page 124 APPENDIX Thermistor Resistance Values 7.051 2.09859271 1.213 4.039284017 6.778 2.14682606 1.177 4.062450215 6.516 2.19524793 1.142 4.085229093 6.267 2.24333597 1.109 4.106941536 6.028 2.29151689 1.076 4.12888601 2.33944954 1.045 4.149715216 5.581 2.38741691 1.015 4.17007359 5.372 2.43506494 0.986 4.189944134 5.172 2.48247664 0.957 4.210004953 4.981 2.52951096 0.93 4.228855721...
  • Page 125 APPENDIX Thermistor Resistance Values 138.696 0.23368340 2.328767123 132.086 0.24480509 7.546 2.369998606 125.833 0.25634646 7.301 2.411176512 119.916 0.26831655 7.065 2.452217815 114.315 0.28072493 6.843 2.492120501 109.01 0.29358432 6.624 2.532777116 103.984 0.30690352 6.414 2.573028606 99.222 0.32068816 6.212 2.612972641 94.708 0.33494897 6.017 2.652726847 90.427 0.34969710 5.829 2.692216328...
  • Page 126 FPWC1 Optional wired wall controller for Floating Air Select single zone and Floating Air Pro, single and multizone models. ® Does not work with FPHSW36A3B at this time. Please check with your Friedrich representative for options. Cable length = 24 ft (8m) ®...

  • Page 127: Friedrich Authorized Parts Depots

    APPENDIX Friedrich Authorized Parts Depots United Products Distributors Inc. The Gabbert Company Reeve Air Conditioning, Inc. 4030A Benson Ave 2501 South Park Road 6868 Ardmore Hallandale, Florida 33009 Halethorpe, MD 21227 Houston, Texas 77054 888-907-9675 954-962-0252 c.businsky@updinc.com 713-747-4110 800-962-3383 800-458-4110 Shivani Refigeration &...

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