Friedrich FSHW091 Service And Parts Manual
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Friedrich FSHW091 Service And Parts Manual

Single zone wall-mounted air conditioning system
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Floating Air Select
FSHW091 - 9,000 BTU Single Zone - 110V
FSHW121 - 12,000 BTU Single Zone - 110V
FSHW183 - 18,000 BTU Single Zone - 230V
FSHW243 - 24,000 BTU Single Zone - 230V
FSHW363 - 36,000 BTU Single Zone - 230V
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Summary of Contents for Friedrich FSHW091

  • Page 1 Floating Air Select FSHW091 - 9,000 BTU Single Zone - 110V FSHW121 - 12,000 BTU Single Zone - 110V FSHW183 - 18,000 BTU Single Zone - 230V FSHW243 - 24,000 BTU Single Zone - 230V FSHW363 - 36,000 BTU Single Zone - 230V...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION‑ Important Safety Information‑ Personal injury or death hazards‑ Model identification guide‑ Indoor Units‑ Outdoor Units‑ Remote Control‑ SPECIFICATIONS‑ Product Specifications‑ Capacities and selection data‑ 9‑12K Operation Characteristics curve‑ 18‑24kK Operation Characteristics curve‑ 36K Operation Characteristics curve‑ 9‑12K Capacity Variation Ratio According to Temperature‑...
  • Page 3 9K Outdoor Unit‑ 12k Outdoor Unit‑ 18k Outdoor Unit‑ 24k Outdoor Unit‑ 36k Outdoor Unit‑ APPENDIX‑ Appendix 1: Reference Sheet of Celsius and Farenheit‑ Appendix 2: Configuration of Connection Pipe‑ Appendix 3: Pipe Expanding Method‑ LIMITED WARRANTY‑ FRIEDRICH AUTHORIZED PARTS DEPOTS‑...

  • 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. 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 guide‑...

  • Page 6: Personal Injury Or Death Hazards

    INTRODUCTION Personal injury or death hazards WARNING AVERTISSEMENT ADVERTENCIA Do not remove, disable or Ne pas supprime, désactiver ou No eliminar, desactivar o pasar SAFETY bypass this unit’s safety contourner cette l´unité des por alto los dispositivos de devices. Doing so may cause dispositifs de sécurité, faire vous seguridad de la unidad.

  • Page 7: 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 HM – Heat Pump Multi Cooling 1- 115 Volts FP - Floating Air Pro HF – H eat Pump F lex Single and BTU/HR 3- 230 Volts FS- F loating Air Select...

  • Page 8: Indoor Units

    INTRODUCTION FSHSW09A1A FSHSW12A1A FSHSW18A3A FSHSW24A3A FSHSW36A3A Figure 102 Indoor Units...

  • Page 9: Outdoor Units

    INTRODUCTION FSHSR09A1A FSHSR12A1A FSHSR18A3A FSHSR24A3A FSHSR36A3A Figure 103 Outdoor Units FSHSW09A1A FSHSW12A1A FSHSW18A3A FSHSW24A3A FSHSW36A3A Figure 104 Remote Control...

  • Page 10: Specifications

    SPECIFICATIONS Friedrich Indoor Model Number Unit FSHSW09A1A FSHSW12A1A FSHSW18A3A FSHSW24A3A FSHSW36A3A Friedrich Outdoor Model Number FSHSR09A1A FSHSR12A1A FSHSR18A3A FSHSR24A3A FSHSR36A3A Friedrich Indoor UPC code 724587438710 724587438727 724587438734 724587438741 724587438758 Friedrich Outdoor UPC code 724587438765 724587438772 724587438789 724587438796 724587438802 Product Code...
  • Page 11 SPECIFICATIONS Friedrich Indoor Model Number Unit FSHSW09A1A FSHSW12A1A FSHSW18A3A FSHSW24A3A FSHSW36A3A Friedrich Outdoor Model Number FSHSR09A1A FSHSR12A1A FSHSR18A3A FSHSR24A3A FSHSR36A3A Dehumidifying Volume Dehumidifying Volume PINT/D 1.69 2.96 4.23 Application Area sq ft 130-194 172-258 248-366 248-366 495-764 Fan Type ‑‑...
  • Page 12 SPECIFICATIONS Friedrich Indoor Model Number Unit FSHSW09A1A FSHSW12A1A FSHSW18A3A FSHSW24A3A FSHSW36A3A Friedrich Outdoor Model Number FSHSR09A1A FSHSR12A1A FSHSR18A3A FSHSR24A3A FSHSR36A3A ZHUHAI LANDA COM- ZHUHAI LANDA COM- ZHUHAI LANDA COM- ZHUHAI LANDA COM- ZHUHAI LANDA COM- Compressor Manufacturer PRESSOR CO.,LTD PRESSOR CO.,LTD PRESSOR CO.,LTD...
  • Page 13 SPECIFICATIONS Friedrich Indoor Model Number Unit FSHSW09A1A FSHSW12A1A FSHSW18A3A FSHSW24A3A FSHSW36A3A Friedrich Outdoor Model Number FSHSR09A1A FSHSR12A1A FSHSR18A3A FSHSR24A3A FSHSR36A3A Heating Operation Ambient Tempera- °F -4~75 -4~75 -13 75 -13 75 -4 75 ture Range Electron expansion Electron expansion Electron expansion...

  • Page 14: Capacities And Selection Data

    SPECIFICATIONS Capacities and selection data 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: 1- Pipe length / height difference : 25 ft.
  • Page 15 SPECIFICATIONS Capacities and selection data Cooling Template Outdoor Indoor Air Temp. °F DB / °F WB 64 / 54 70 / 60 75/ 83 80 / 67 85 / 71 90 / 73 Indoor units(Btu) Temp. (°F DB) kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h...
  • Page 16 SPECIFICATIONS Capacities and selection data Cooling Template Outdoor Indoor Air Temp. °F DB / °F WB 64 / 54 70 / 60 75/ 83 80 / 67 85 / 71 90 / 73 Indoor units(Btu) Temp. (°F DB) kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h...
  • Page 17 SPECIFICATIONS Capacities and selection data Cooling Template Outdoor Indoor Air Temp. °F DB / °F WB 64 / 54 70 / 60 75/ 83 80 / 67 85 / 71 90 / 73 Indoor units(Btu) Temp. (°F DB) kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h...

  • Page 18: 9-12K Operation Characteristics Curve

    SPECIFICATIONS Heating Cooling 220V 220V • Conditions Indoor : DB80˚F/WB66.9˚F Outdoor : DB95˚F Indoor air flow : High Pipe lengt : 24.6ft 230V 230V 240V • Conditions Indoor : DB70˚F/WB60˚F 240V Outdoor : DB19.94˚F/WB19.04˚F Indoor air flow : High Pipe lengt : 24.6ft Compressor frequency(Hz) Compressor frequency(Hz) Figure 203...

  • Page 19: Operation Characteristics Curve

    SPECIFICATIONS Cooling Heating Condition Condition Indoor:DB 70°F Indoor:DB 80°F WB66°F Indoor air flow: Super High Indoor air flow: Super High Pipe length:24 39/64ft Pipe length:24 39/64ft Compressor Frequency(Hz) Compressor Frequency(Hz) Figure 205 36K Operation Characteristics curve...

  • Page 20: 9-12K Capacity Variation Ratio According To Temperature

    SPECIFICATIONS Cooling Heating Conditions Conditions Indoor:DB80°F/WB66.9°F Indoor:DB70°F Outdoor:DB95°F Outdoor:DB19.94°F/WB19.04°F Indoor air flow:Super High Indoor air flow:Super High Pipe length:24.6ft Pipe length:24.6ft 98.6 100.4 102.2 104 105.8 107.6 109.4 89.6 91.4 93.2 96.8 Outdoor temp.(°F) Outdoor temp.(°F) Figure 206 9-12K Capacity Variation Ratio According to Temperature Cooling Heating Conditions...

  • Page 21: Capacity Variation Ratio According To Temperature

    SPECIFICATIONS Cooling Heating Conditions Conditions Indoor: DB 80°F °F WB66 Indoor:DB 70°F Indoor air flow: Super High Indoor air flow:Super High Pipe length : 24 39/64f t Pipe length: 24 39/64f t Outdoor temp. (˚F) utdoor temp. (˚F) Figure 208 36K Capacity Variation Ratio According to Temperature Indoor side noise when blowing Outdoor side noise when blowing...

  • Page 22: 18-24K Noise Curve

    SPECIFICATIONS Indoor side noise Outdoor side noise Heating Cooling Compressor frequency(Hz) Indoor fan motor rating speed Figure 210 18-24K Noise Curve Indoor side noise Outdoor side noise Compressor frequency(Hz) Indoor fan motor rating speed Figure 211 36K Noise Curve...

  • Page 23: Cooling Data Sheet In Rated Frequency

    SPECIFICATIONS Rated cooling connecting Model Pressure of Inlet and outlet pipe tempera‑ Fan speed of Fan speed of Compresso r indoor and (DB/WB) gas pipe con‑ ture of heat exchanger indoor unit outdoor unit frequency (Hz) necting indoor and outdoor unit Indoor Outdoor...
  • Page 24 SPECIFICATIONS Unit: “ (inches) 4 7/8 1 5/16 7 1/16 6 5/8 18 1/4 6 1/4 Φ 2 3/16 Φ2 3/16 Φ2 3/16 Φ 3/16 1 3/8 1 3/8 2 1/8 3 1/4 4 15/16 3 9/16 5 7/8 Models 31 1/8 10 13/16 7 7/8...

  • Page 25: 18-24K Indoor Unit Dimensions

    SPECIFICATIONS Unit: “ (inches) 3/16 Φ2 3/16 Φ2 3/16 1 1/2 7 1/2 5 1/2 8 1/8 7 5/16 Φ2 3/4 Φ2 3/4 1 11/16 3 1/8 Models 38 3/16 11 13/16 8 13/16 42 7/16 12 13/16 9 11/16 Figure 225 18-24K Indoor Unit Dimensions...

  • Page 26: 9-12K Outdoor Unit Dimensions

    SPECIFICATIONS Unit: “ (inches) 53 9/64 13 25/32 29 3/8 Φ2 3/4 Φ2 3/4 11 19/32 3 1/2 Figure 226 36K indoor Unit Dimensions Unit: “ (inches) 12 5/8 33 3/8 21 1/4 Figure 227 9-12K Outdoor Unit Dimensions...

  • Page 27: 18-24K Outdoor Unit Dimensions

    SPECIFICATIONS Unit: “ (inches) 13 3/8 15 5/8 Figure 228 18-24K Outdoor Unit Dimensions Unit: “ (inches) 36 7/32 14 37/64 16 13/16 39 1/2 Figure 229 36K Outdoor Unit Dimensions...

  • Page 28: Operation

    OPERATION 69700657 / 69700623 ON/OFF button MODE button FAN button SWING button TURBO button ▲/ button SLEEP button TEMP button WiFi button LIGHT button CLOCK button TIMER ON / TIMER OFF button Introduction for icons on display screen Set fan speed I feel Send signal Operation mode...

  • Page 29: Remote Control Description

    OPERATION Remote Control Description 1. ON/OFF button Press this button to turn on the unit. Press this button again to turn off the unit. 2. MODE button Press this button to select your required operation mode. AUTO COOL HEAT ● When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature can't be adjusted and will not be displayed as well.
  • Page 30 OPERATION Remote Control Description 6. ▲/ button ● Press "▲" or " " button once increase or decrease set temperature 1°F . Holding "▲" or " " button, 2s later, set temperature on remote (Temperature can't be adjusted under auto mode) ●...
  • Page 31 OPERATION Remote Control Description Note: ● Under on and off status, you can set TIMER OFF or TIMER ON simultaneously. ● Before setting TIMER ON or TIMER OFF, please adjust the clock time. ● After starting up TIMER ON or TIMER OFF, set the constant circulating valid. After that, air conditioner will be turned on or turned off according to setting time.
  • Page 32 OPERATION Remote Control Description Operation guide 1. After putting through the power, press "ON/OFF" button on remote controller to turn on the air conditioner. 2. Press "MODE" button to select your required mode: AUTO, COOL, DRY, FAN, HEAT. 3. Press "▲" or " "...

  • Page 33: 9-24K Sequence Of Operation

    OPERATION 9-24k Sequence of Operation 1.Basic function of system (1)Cooling mode (1) Under this mode, fan and swing operates at setting status. Temperature setting range is 60.8~86.0 (2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status. (2)Drying mode (1) Under this mode, fan operates at low speed and swing operates at setting status.
  • Page 34 OPERATION 9-24k Sequence of Operation (8)I feel control mode After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient temperature sent by remote controller. (9)Compulsory defrosting function (1) Start up compulsory defrosting function Under ON status, set heating mode with remote controller and adjust the temperature to 60.8 F.
  • Page 35 OPERATION 9-24k Sequence of Operation Outdoor Units 1. Input Parameter Compensation and Calibration (1) Check the ambient temperature compensation function Indoor ambient temperature compensation function. a. In cooling mode, the indoor ambient temperature participating in computing control = (T – ⊿ T indoor ambient temperature cooling indoor ambient temperature compensation...
  • Page 36 OPERATION 9-24k Sequence of Operation 3. Special Functions Defrosting Control ① Conditions for starting defrosting the defrosting operation will start. ② ③ T ≥ (T – [T outdoor pipe temperature outdoor ambient temperature ④ The continuous running time of defrosting reaches [tmax. defrosting time]. 4.
  • Page 37 OPERATION 9-24k Sequence of Operation 1. Starting estimation: After the compressor stopped working for 180s, if T > [T (the temperature of hysteresis is 35.6ºF )], inner pipe frozen-preventing frequency-limited temperature the machine is only allowed to start for operating, otherwise it should not be started, and should be stopped to treat according to the frozen- preventing protection: Clear the trouble under the mode of power turn-off / heating, and the protection times are not counted.
  • Page 38 OPERATION 9-24k Sequence of Operation 1. Frequency limited If [T ]≤T <[T ] , you should limit the frequency raising of heating overload frequency-limited temperature inner pipe heating overload frequency reducing temperature at normal speed compressor. 2. Reducing frequency at normal speed and stopping machine: If T[ ]≤T <[T...
  • Page 39 OPERATION 9-24k Sequence of Operation (6)Voltage sag protection After start the compressor, if the time of DC link Voltage sag [U ] is measured to be less than t Voltage sag protection time , Sagging protection voltage the machine should be stop at once, hand on the voltage sag trouble, reboot automatically after 30 minutes. (7)Communication fault When you have not received any correct signal from the inner machine in three minutes, the machine will stop for communication fault.
  • Page 40 OPERATION 9-24k Sequence of Operation (12) Starting-up Failure Protection for Compressor Stop the compressor after staring fails, then restart it after 20s if the fault doesn't show.If starting fails 3 consecutive times, it shall be reported as Starting-up Failure, and then restart up it after 3 min. When it still not be able to operate through carry out the above process for 5 times, it is available if you press ON/OFF.
  • Page 41 OPERATION 9-24k Sequence of Operation 6. Electric Heating Function of Chassis (1) When T ≤32ºF , the electric heating of chassis will operate; outdoor amb. (2) When T >35.6ºF , the electric heating of chassis will stop operation; outdoor amb. (3)When 32ºF <T ≤35.6ºF, the electric heating of chassis will keep original status.

  • Page 42: Sequence Of Operation

    OPERATION 36k Sequence of Operation 1. Temperature Parameters Indoor preset temperature (Tpreset) Indoor ambient temperature (Tamb.) 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory functionis without a 3 minute lag;...
  • Page 43 OPERATION 36k Sequence of Operation When duration of successive heating operation is more than 45 minutes, or accumulated heating time more than 90 minutes, and one of the following conditions is reached, the unit will enter the defrost mode after 3 minutes. a.
  • Page 44 OPERATION 36k Sequence of Operation c. If Ttube ≥ 136°F, the compressor will run at reduced frequency. d. If Ttube ≥ 144°F, the compressor will stop and the indoor fan will run at preset speed. 2) Heating overload a. If Ttube ≤ 126°F, the unit will return to its original operation state. b.

  • Page 45: 9-12K Refrigerant System Diagram

    OPERATION Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Strainer Electron expansion valve COOLING HEATING Figure 302 9-12K Refrigerant System Diagram Outdoor unit Indoor unit Gas pipe...

  • Page 46: Refrigerant System Diagram

    OPERATION Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electron Strainer expansion valve COOLING HEATING Liquid pipe:1/4 inch Gas pipe:5/8 inch Figure 304 36K Refrigerant System Diagram...

  • Page 47: Installation

    INSTALLATION...

  • Page 48: Installation Tools

    INSTALLATION Installation Tools...
  • Page 49 INSTALLATION Installation Dimension Diagram Space to the wall Space to the wall At least 4 inches(”) At least 4 inches(”) Drainage pipe...
  • Page 50 INSTALLATION Installation Work Flow Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...

  • Page 51: Installation Parts Checklist

    INSTALLATION Installation Parts Checklist 1. Indoor Unit 2. Outdoor Unit 3. Connection Pipe 4. Drainage pipe 5. Wall Mounting Frame 6. Connecting Cable (power cord) 7. Wall Pipe 8. Sealing gim 9. Wrapping Tape 10. Outdoor unit support 11. Fixing screw 12.
  • Page 52 INSTALLATION Outdoor Unit 1. Select a location where the noise and outflow air emitted by the outdoor unit will not affect neighborhood. 2. The location should be well ventilated and dry, in which the outdoor unit won’t be exposed directly to sunlight or strong wind. 3.

  • Page 53: Installation Of Indoor Unit

    INSTALLATION Installation of Indoor Unit Install Wall Mounting Frame 1. Hang the wall‑mounting frame on the wall; adjust it in horizontal position with the level meter and then point out the screw fixing holes on the wall. 2. Drill the screw fixing holes on the wall with impact drill (the specification of drill head should be the same as the plastic expansion particle) and then fill the plastic expansion particles in the holes.
  • Page 54 INSTALLATION Installation of Indoor Unit Connect the Pipe of the Indoor Unit 1. Aim the pipe joint at the corresponding bellmouth.(As show in Fig.5) 2. Pretightening the union nut with hand. 3. Adjust the torque force by referring to Figure 22a. Place the open‑end wrench on the pipe joint and place torque wrench on the union nut.
  • Page 55 INSTALLATION Installation of Indoor Unit Connect Wire of Indoor Unit 1. Open the panel, remove the screw on the wiring cover and then take down the cover.(As show in Fig.11) 2. Fix the wire crossing board on connection wire sleeve at the bottom case; let the connection wire sleeve go through the wire crossing hole at the back of indoor unit, and then pull it out from the front.(As show in Fig.12) Screw Panel...
  • Page 56 INSTALLATION Installation of Indoor Unit Hang the Indoor Unit 1. Put the bound pipes in the wall pipe and then make them pass through the wall hole. 2. Hang the indoor unit on the wall‑mounting frame. 3. Stuff the gap between pipes and wall hole with sealing gum. 4.
  • Page 57 INSTALLATION Installation of the Outdoor Unit Install the Outdoor Support 1. Select installation location according to the house structure. 2. Fix the support of outdoor unit on the selected location with expansion screws. Notes 1. Take sufficient protective measures when installing the outdoor unit. 2.
  • Page 58 INSTALLATION Installation of the Outdoor Unit Connect Outdoor Electric Wire 1. Put power connection wire and power wire through the wire‑‑passing hole. 2. Remove the wire clip; connect the power connection wire and power wire to the wiring terminal; fix them with screws.(As show in Fig.23) 3.
  • Page 59 INSTALLATION Installation of the Outdoor Unit Neaten the Pipes 1. The pipes should be placed along the wall, bent reasonably and hidden possibly. Min. semidiameter of bending the pipe is 4 inch. 2. If the outdoor unit is higher than the wall hole, you must set a U‑shaped curve in the pipe before pipe goes into the room, in order to prevent rain from getting into the room.

  • Page 60: 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 pro‑ motes a dry tight refrigeration system before opening the service valves. It recommended that a single port refrigeration manifold and hoses rated over 800psi be used.
  • Page 61 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...

  • Page 62: 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 63: Removal

    REMOVAL Indoor Unit Step Procedure Front panel the groove on the front panel. Front case respectively. Groove 2. Remove horizontal louver Push out the axile bush on horizontal louver. Bend the horizontal louver with hand and then separate the horizontal louver from the crankshaft of step motor to remove it.
  • Page 64 REMOVAL Indoor Unit Step Procedure 4. Remove electric box cover 2 and detecting plate(WIFI) Remove the screws on the electric box cover 2 and detecting plate(WIFI), then remove the electric box cover 2 and Detecting plate(WIFI) detecting plate(WIFI). Note:the position of detection board(WIFI) may be different for different models.
  • Page 65 REMOVAL Indoor Unit Steps Procedure 7. Remove vertical louver Loosen the connection clasps between Bottom vertical louver and bottom case to remove case vertical louver. Vertical louver Vertical Clasps louver 8. Remove electric box assy Screw Clasps Loosen the connection clasps between shield cover of electric box sub-assy and electric box, and then remove the shield cover of electric box sub-assy.
  • Page 66 REMOVAL Indoor Unit Steps Procedure Instruction: Some wiring terminal of this product is with lock catch and other devices. Circlip The pulling method is as below: Holder ① Remove the soft sheath for some terminals terminals. Connector Soft sheath ② Pull out the holder for some terminals at terminal), hold the connector and then pull the terminal.
  • Page 67 REMOVAL Indoor Unit Steps Procedure Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Remove the screws at the connection Screw Motor place of cross flow blade and motor; lift Holder the motor and cross flow blade upwards sub-assy to remove them.

  • Page 68: Outdoor Unit

    REMOVAL Outdoor Unit Steps Procedure 1.Remove cable cross plate sub-assy and valve cover cable cross plate sub-assy Remove the screws fixing cable cross plate sub-assy and then remove the cable cross plate sub-assy. Remove the screws fixing valve cover and then remove the valve cover.
  • Page 69 REMOVAL Outdoor Unit Steps Procedure 4.Remove front panel front panel Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. 5.Remove right side plate Remove connection screws connecting the right side plate right side plate with the valve support and the electric box.
  • Page 70 REMOVAL Outdoor Unit Steps Procedure 7.Remove motor and motor support motor support tor Pull out the lead-out wire and remove themotor. Remove the 2 tapping screws re-move it. motor 8.Remove electric box assy electric box assy Remove the 2 screws fixing the cover of elec-tric box.
  • Page 71 REMOVAL Outdoor Unit Steps Procedure 10.Remove 4-way valve assy 4-way valve assy Unscrew the fastening nut of the 4-way Valve Assy coil and remove the coil. Wrap the 4-way Valve Assy with wet cotton and unsolder the 4 weld spots connecting the 4-way Valve Assy to take it out (Note: Refrig- erant shouldbe discharged firstly.) Welding process should be as quickly as possible and...

  • Page 72: Wired Controller

    WIRED CONTROLLER Display...
  • Page 73 WIRED CONTROLLER Display Wired Controller FSWC1 Owner's Manual 1.2 Instructions for Related Displayed Symbols Symbols Instructions Up and down swing function Left and right swing function Fresh air function Sleep function Auto mode Cooling mode Dry mode Fan mode Heating mode Health function I-Demand function Absence function...

  • Page 74: Buttons

    Wired Controller FSWC1 Owner's Manual WIRED CONTROLLER 2 Buttons Buttons 2.1 Button Graphics Fig. 2 Button graphics 2.2 Function Instructions of Buttons Button name Button Function Set low speed, medium speed,high speed, turbo and auto speed. (1) Set temperature ∧ (2) Set parameter ∨...
  • Page 75 WIRED CONTROLLER Operation Instructions Wired Controller FSWC1 Owner's Manual Main menu User function menu Fresh air function setting Sleep function setting Health function setting I-DEMAND function setting Absence function setting Memory function setting Fixed-angle swing function setting Save function setting Auxiliary heat function setting Dry function setting Quiet function setting...
  • Page 76 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions 3.2 On/Off When the wired control is on main page, press ON/OFF button to turn on the unit. Press ON/OFF button again to turn off the unit. The interfaces of On/Off status are shown in Fig.
  • Page 77 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions 3.6 Swing Setting In unit on status, press SWING button for swing setting. Two swing modes are available: fixed-angle swing and simple swing. When fixed-angle swing mode is set, swing operation is as follows: In unit on status, press SWING button to select up&down swing .
  • Page 78 WIRED CONTROLLER Operation Instructions Wired Controller FSWC1 Owner's Manual AUTO AUTO Press SWING button to turn on or Press SWING button to enter swing turn off simple up&down swing setting status. and fixed-angle up&down swing. AUTO AUTO Press SWING button to turn on or Press “<”or “>”...
  • Page 79 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions 3.7 Functions Setting Press MENU/OK button on main page to enter main menu page. Press “∧” or “∨” or “＜” or “＞” button to select the function setting symbol. Then press MENU/OK button to enter user function setting page.
  • Page 80 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions 3.7.1 Fresh Air Function Setting After entering user function page, press “ ” or “ ” button to select fresh air function and press “ ” or “ ” button to turn on or turn off air function. Press MENU button to adjust the mode of fresh air.
  • Page 81 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions 3.7.3 Health Function Setting After entering user function page, press “∧” or “∨” button to select health function and press “＜” or “＞” button to turn on or turn off health function with auto saving. 3.7.4 I-DEMAND Function Setting After entering user function page, press “∧”...
  • Page 82 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions 3.7.8 Save Function Setting After entering user function page, press “∧” or “∨” button to select save function and press “＜” or “＞” button to turn on or turn off save function. Press MENU button to enter save function setting page.
  • Page 83 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions 3.7.13 Air Function Setting After entering user function page, press “∧” or “∨” button to select Air Function and press “＜” or “＞” button to turn on or turn off air function. Press MENU button to adjust the mode of Air Function .
  • Page 84 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions 3.9 Current Error View When error occurs in the unit, error symbol will be displayed on the main page of wired controller to indicate that the unit is with error. In this case, you can enter error view page to view the current error.
  • Page 85 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions Error Error Error Error Code Code Return air temperature sensor open/ Drive board communication error short circuited evaporator temperature sensor open/ Compressor overheating protection short circuited Indoor unit liquid valve temperature Indoor and outdoor units unmatched sensor open/short circuited Indoor gas valve temperature sensor...
  • Page 86 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions Error Error Error Error Code Code Communication error between IDU and IDU network address error grid connection Communication error between ODU and Ip address allocation overflow grid connection Main error at grid connection side 3.10 Timer Setting The wired controller can set 6 kinds of timer: one time clock timer, everyday timer, one week timer, two week timer, countdown timer on and countdown timer off.
  • Page 87 WIRED CONTROLLER Operation Instructions Wired Controller FSWC1 Owner's Manual ONCE 12:46 Fig. 12 Setting page of one time clock timer Note: If this timer function is turned on, when the unit is turned on or turned off, this timer function will be cancelled automatically. 3.10.2 Daily Timer In daily timer, user can set eight segments of timer individually.
  • Page 88 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions After entering weekly timer setting page, press “＜” or “＞” button to select the day to be set. Then press MENU button to enter timer programming of that day. Press “＜” or “＞”...
  • Page 89 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions 3.10.4 Two Week Timer The user can set the everyday timer content for two weeks. In each day, the user can set eight segments of timer content. The unit will execute corresponding timer setting in two weeks.
  • Page 90 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Operation Instructions After entering timer on setting page, press “ ∧ ” or “ ∨” button to increases or decreases timer time by 0.5h. Press MENU button to save setting. Press BACK button to return to the last page. Please refer to Fig. 16. TIMER ON HOURS ON Fig.
  • Page 91 WIRED CONTROLLER Operation Instructions Wired Controller FSWC1 Owner's Manual This timer function will be carried out for only once and then it will be cancelled automatically. Note: If this timer function is turned on, when the unit is turned on or turned off, this timer function will be cancelled automatically.
  • Page 92 WIRED CONTROLLER Operation Instructions Wired Controller FSWC1 Owner's Manual CLOCK CLOCK FORMAT CLOCK SEARCH TIMER FUNCTION CLOCK LOCK CLOCK TIME : Fig. 19 Clock setting 3.12 Lock Setting Select lock symbol in menu page and then press MENU button to enter lock setting page.

  • Page 93: Installation Instructions

    WIRED CONTROLLER Installation Instructions Wired Controller FSWC1 Owner's Manual Fig. 20 Lock setting 4 Installation Instructions 4.1 Parts and Dimension of Wired Controller unit：mm Fig. 21 Dimension of wired controller Fig. 22 Parts of wired controller Sponge 20× × 20 3 Panel of wired Soleplate of wired Name...
  • Page 94 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Installation Instructions 4.2 Installation Requirements (1) Prohibit installing the wired controller at wet places. (2) Prohibit installing the wired controller at the places with direct sunshine. (3) Prohibit installing the wired controller at the place near high temperature objects or water-splashing places.
  • Page 95 WIRED CONTROLLER Installation Instructions Fig. 23 Installation diagram for wired controller Fig. 23 is the simple installation process of wired controller; please pay attention to the following items: (1) Before installation, please cut off the power for indoor unit; (2) Pull out the four-core twisted pair line from the installation holes and then let it go Wired Controller FSWC1 Owner's Manual through the rectangular hole behind the soleplate of the wired controller.
  • Page 96 WIRED CONTROLLER Installation Instructions Wired Controller FSWC1 Owner's Manual Only use the connection wire (fig. B) in the packing box of wired controller. Connect the terminal ② to the terminal ④ of patch cord which has been installed on the air conditioner; insert terminal ① to needle stand CN2 of wired controller. If there’s protection terminal ③, pull out the protection terminal at first and then install it.
  • Page 97 WIRED CONTROLLER Wired Controller FSWC1 Owner's Manual Installation Instructions 4.4 Disassembly Fig. 24 Disassembly diagram for wired controller...

  • Page 98: 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 99 R-410A SEALED SYSTEM REPAIR Pumping Down Liquid side Indoor unit Outdoor unit Open 2-Way valve Gas side Closed 3-Way valve CLOSE CLOSE Purge the air Fig. 505 – Do this quickly so that the gauge ends up indicating 0-15 PSI. –...

  • Page 100: 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 Fig. 506 This is different 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 101: Components Testing

    COMPONENTS TESTING Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15k Ω Temp. Resistance Temp. Resistance( Temp. Resistance Temp. Resistance (°F) (kΩ) (°F) kΩ) (°F) (kΩ) (°F) (kΩ) ‑2.2 138.1 18.75 138.2 3.848 208.4 1.071 ‑0.4 128.6 69.8 17.93 3.711...

  • Page 102: Resistance Table Of Ambient Temperature Sensor For Indoor And Outdoor Units (20Kω)

    COMPONENTS TESTING Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (20k Ω Temp. Resistance Temp. Resistance( Temp. Resistance Temp. Resistance (°F) (kΩ) (°F) kΩ) (°F) (kΩ) (°F) (kΩ) ‑2.2 181.4 25.01 138.2 5.13 208.4 1.427 ‑0.4 171.4 69.8 23.9 4.948...

  • Page 103: Resistance Table Of Ambient Temperature Sensor For Indoor And Outdoor Units (50Kω)

    COMPONENTS TESTING Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (50k Ω Temp. Resistance Temp. Resistance( Temp. Resistance Temp. Resistance (°F) (kΩ) (°F) kΩ) (°F) (kΩ) (°F) (kΩ) ‑20.2 853.5 120.2 18.34 190.4 4.754 ‑18.4 799.8 51.8 93.42 17.65 192.2...

  • Page 104: 9-12K Indoor Unit Printed Circuit Board Identification

    COMPONENTS TESTING ● Top view Name Interface of communication wire for indoor unit and outdoor unit Interface of live wire Interface of neutral wire Interface of fan Jumper cap Interface of health function live wire (only for the mode with this function) 7 Up&down swing interface Feedback interface of indoor unit Interface of tube temperature sensor...

  • Page 105: 18-24K Indoor Unit Printed Circuit Board Identification

    COMPONENTS TESTING Top view Name Display interface Inner tube temperature sensor Ambient temperature sensor Jumper cap Left&right swing interface Up&down swing interface Auto button Interface of wired controller Neutral wire Live wire Fuse Communication interface Wiring terminal for DC motor Interface of health function live wire (only for the mode with this function) Interface of health function neutral wire...

  • Page 106: Indoor Unit Printed Circuit Board Identification

    COMPONENTS TESTING Top view Name Display interface Inner tube temperature sensor Ambient temperature sensor Jumper cap Left&right swing interface Up&down swing interface Auto button Interface of wired controller Neutral wire Live wire Fuse Communication interface Wiring terminal for DC motor Interface of health function live wire (only for the mode with this function) Interface of health function neutral wire...

  • Page 107: 9-12K Outdoor Unit Printed Circuit Board Identification

    COMPONENTS TESTING ● Top view 17 16 15 14 13 12 Name Name Name Compressor output port Live wire 17 Terminal of outdoor fan Connection wire between boards of Connect the negative pole of external Master control chip neutral wire connects AC-N4 big electrolytic capacitor Connection wire between boards of Connect the positive pole of external...

  • Page 108: 18-24K Outdoor Unit Printed Circuit Board Identification

    COMPONENTS TESTING Outdoor Unit ● Top view N me Compressor three phase input interface Interface of system high pressure protection Compressor overload protection interface Interface of temperature sensor Interface of electronic expansion valve Interface of system low pressure protection Interface of fan 4-way valve interface 2-way valve interface Interface of electric heating for...

  • Page 109: Outdoor Unit Printed Circuit Board Identification

    COMPONENTS TESTING ● Top view Name Name Name 1 High-frequency transformer T1 6 High pressure protection terminal HPP1 11 Terminal of neutral wire Overload protection terminal of 7 Terminal of 4-way valve 12 Protective tube FU101 compressor OVC-COMP 3 Terminal of temp sensor CN2 8 Electric heater band of chassis HEAT2-L 13 Terminal of ground wire High pressure protection terminal...

  • Page 110: Troubleshooting

    TROUBLESHOOTING Diagnostic Codes Malfunction Display Method of Indoor Unit Display Method of Outdoor Unit A/C status Possible Causes Name Dual‑8 Indicator Display (During blinking, Indicator has 3 kinds of display status Code ON 0.5s and OFF 0.5s) and during blinking, ON 0.5s and Display OFF 0.5s Power...
  • Page 111 TROUBLESHOOTING Diagnostic Codes Malfunction Display Method of Indoor Unit Display Method of Outdoor Unit A/C status Possible Causes Name Dual‑8 Indicator Display (During blinking, Indicator has 3 kinds of display status Code ON 0.5s and OFF 0.5s) and during blinking, ON 0.5s and Display OFF 0.5s Power...
  • Page 112 TROUBLESHOOTING Diagnostic Codes Malfunction Display Method of Indoor Unit Display Method of Outdoor Unit A/C status Possible Causes Name Dual‑8 Indicator Display (During blinking, Indicator has 3 kinds of display status Code ON 0.5s and OFF 0.5s) and during blinking, ON 0.5s and Display OFF 0.5s Power...
  • Page 113 TROUBLESHOOTING Diagnostic Codes Malfunction Display Method of Indoor Unit Display Method of Outdoor Unit A/C status Possible Causes Name Dual‑8 Indicator Display (During blinking, Indicator has 3 kinds of display status Code ON 0.5s and OFF 0.5s) and during blinking, ON 0.5s and Display OFF 0.5s Power...
  • Page 114 TROUBLESHOOTING Diagnostic Codes Malfunction Display Method of Indoor Unit Display Method of Outdoor Unit A/C status Possible Causes Name Dual‑8 Indicator Display (During blinking, Indicator has 3 kinds of display status Code ON 0.5s and OFF 0.5s) and during blinking, ON 0.5s and Display OFF 0.5s Power...
  • Page 115 TROUBLESHOOTING Diagnostic Code Malfunction Display Method of Indoor Unit Display Method of Outdoor Unit A/C status Possible Causes Name Dual‑8 Indicator Display (During blinking, Indicator has 3 kinds of display status Code ON 0.5s and OFF 0.5s) and during blinking, ON 0.5s and Display OFF 0.5s Power...
  • Page 116 TROUBLESHOOTING Diagnostic Codes Malfunction Display Method of Indoor Unit Display Method of Outdoor Unit A/C status Possible Causes Name Dual‑8 Indicator Display (During blinking, Indicator has 3 kinds of display status Code ON 0.5s and OFF 0.5s) and during blinking, ON 0.5s and Display OFF 0.5s Power...
  • Page 117 TROUBLESHOOTING Diagnostic Codes Malfunction Display Method of Indoor Unit Display Method of Outdoor Unit A/C status Possible Causes Name Dual‑8 Indicator Display (During blinking, Indicator has 3 kinds of display status Code ON 0.5s and OFF 0.5s) and during blinking, ON 0.5s and Display OFF 0.5s Power...

  • Page 118: Malfunction Of Temperature Sensor F1, F2

    TROUBLESHOOTING Malfunction of Temperature Sensor F1, F2 Indoor unit (1) Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●...

  • Page 119: 9-12K Malfunction Of Blocked Protection Of Idu Fan Motor H6

    TROUBLESHOOTING 9-12k Malfunction of blocked Protection of IDU Fan Motor H6 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ●...

  • Page 120: 18-36K Malfunction Of Blocked Protection Of Idu Fan Motor H6

    TROUBLESHOOTING 18-36k Malfunction of blocked Protection of IDU Fan Motor H6 2.Malfunction of Blocked Protection of IDU Fan Motor H6 Start Turn the fan blades by hand under power-off condition Adjust the motor and blade Whether the fan blades assembly so that rotor can run can run smoothly? smoothly.

  • Page 121: Malfunction Of Protection Of Jumper Cap C5

    TROUBLESHOOTING Malfunction of Protection of Jumper Cap C5 Troubleshooting for C5 malfunction Appearance of Is there jumper cap on the the jumper cap mainboard ? Assemble the jumper cap with the same model Is malfunction eliminated the jumper cap inserted correctly and tightly ? Insert the...

  • Page 122: Malfunction Of Idu Fan Motor U8

    TROUBLESHOOTING Malfunction of IDU Fan Motor U8 Service Manual Start...
  • Page 123 TROUBLESHOOTING Overcurrent Protection E5 Malfunction of Overcurrent Protection E5 Main detection points: ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate eliminated Is the supply voltage too low Adjust the supply voltage to maintain it...

  • Page 124: Malfunction Of Communication E6

    TROUBLESHOOTING Malfunction of Communication E6 Malfunction of communication E6 Main detection points: ● Check if the connection wire and the built-in wiring of indoor and outdoor unit are connected well and without damage; ● If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is damaged? Malfunction diagnosis process: Start...

  • Page 125: Malfunction Of Power Supply From Indoor To Outdoor Unit

    TROUBLESHOOTING Malfunction of Power Supply from Indoor to Outdoor Unit Inspect the power supply plug seat wit hAC voltage guage to check if voltage between L and N is within 200VAC‑240 VAC. Check with AC voltage gauge if the voltage between N1 and 3 of indoor wiring block is within 200 VAC‑240AC Energize the unit and wait for 3min Measure voltage between...

  • Page 126: Malfunction Of Detecting Plate (Wifi) Jf

    TROUBLESHOOTING Malfunction of Detecting Plate (WIFI) JF Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end...

  • Page 127: Indoor Fan Does Not Rotate And There Is No Feedback

    TROUBLESHOOTING Indoor fan does not rotate and there is no Feedback Is the control panel reliably connected with the motor? Is it loose? Is the connecting sequence correct? Is the input voltage within the normal range (measure the voltage between L and N of the wiring block XT with AC voltage gauge.)? Energize the unit and start it Voltage between...

  • Page 128: Temperature Sensor Malfunction

    TROUBLESHOOTING Temperature sensor malfunction Is outdoor ambient temperature within the normal range? Is indoor and outdoor fan running normally? Is the radiating environment inside and outside the unit good enough? Energize the unit and start Check connecting state of indoor Indoor unit temperature display F1/F2...

  • Page 129: Malfunction Diagnosis Of Startup Failure

    TROUBLESHOOTING Malfunction diagnosis of startup failure Is wiring of compressor correct. Is the stop time of compressor enough? Is compressor damaged? Energize the unit and start it Is the stop time of compressor more Start it 3 min later than 3min Startup failure? Connect it according Is compressor wire connected correctly?

  • Page 130: Diagnosis Of Losing Synchronism For Compressor

    TROUBLESHOOTING Diagnosis of losing synchronism for compressor (AP1 below is control board of outdoor unit) ● If the system pressure is over-high? ● If the work voltage is over-low? Malfunction diagnosis process: Synchronism Synchronism after energize the unit occurred during and start it operation Check if the fan...

  • Page 131: 9-12K, 36K Diagnosis Of Overload And Discharge Malfunction

    TROUBLESHOOTING 9-12k, 36k Diagnosis of overload and discharge malfunction Is electric expansion valve well connected? Is it damaged? Is refrigerant leaked? Is overload wire connection normal? Are resistances between the first four pins close to the terminal hole and the 5th pin almost the same.? They should be less than 100 ohm.

  • Page 132: 18-24K Diagnosis Of Overload And Discharge Malfunction

    TROUBLESHOOTING 18-24k Diagnosis of overload and discharge malfunction Diagnosis for overload and discharge malfunction (AP1 below is control board of outdoor unit) Main detection point: ● If the electron expansion valve is connected well? Is the expansion valve damaged? ● If the refrigerant is leakage? ●...

  • Page 133: Capacity Charging Malfunction - Outdoor Unit

    TROUBLESHOOTING Capacity Charging malfunction - Outdoor unit 1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel) Main Check Points: Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC. If the reactor (L) is correctly connected? If the connection is loose or fallen? If the reactor (L) is damaged? Turn on the unit and wait 1 minute...

  • Page 134: 9-24K Pm Protection, Phase Current Overcurrent

    TROUBLESHOOTING 9-24k PM protection, phase current overcurrent (the control board as below indicates the control board of outdoor unit) H5/P5 Mainly detect: (1) Compressor COMP terminal (2) voltage of power supply (3) compressor (4) Refrigerant-charging volume (5) air outlet and air inlet of outdoor/indoor unit Troubleshooting: Turn on the unit after energization...

  • Page 135: Ipm Protection, Out-Of-Step Fault, Compressor Phase Overcurrent

    TROUBLESHOOTING 36k IPM Protection, Out-of-Step Fault, Compressor Phase Overcurrent If the connection between control panel AP1 and compressor COMP is secure? If loose? If the connection is in correct order? If the voltage input of the machine is within normal range? (Use AC voltmeter to measure the voltage between terminal L and N on the wiring board If the compressor coil resistance is normal? If the insulation of compressor coil against the copper tube is in good condition?If the working load of the machine are too high? If the radiation is good? If the charge volume of refrigerant is correct?

  • Page 136: High Temperature And Overload Protection Diagnosis

    TROUBLESHOOTING High temperature and Overload Protection Diagnosis Is outdoor ambient temperature in normal range? Are the outdoor and indoor fans operating normally? Is the heat dissipation environment inside and outside the unit is good? (AP1 below refers to the outdoor control panel) Overheat and high temperature protection Normal protection, please operate...

  • Page 137: Pfc (Correction Power Factor) Outdor Unit Malfuction

    TROUBLESHOOTING PFC (Correction Power Factor) Outdor Unit Malfuction AP1 hereinafter refers to the control board of the outdoor unit Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken Start Check wiring of the reactor (L) of the outdoor unit and the PFC capacitor Replace it as per the...

  • Page 138: Communication Malfunction: (Following Ap1 For Outdoor Unit Control Board)

    TROUBLESHOOTING Communication malfunction: (following AP1 for outdoor unit control board) (8) Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Fault diagnosis process: Start...

  • Page 139: High-Pressure Protection

    TROUBLESHOOTING High-pressure Protection High-pressure Protection High-pressure protection Use pressure gauge to Measure if the pressure switch Replace the mainboard of measure if the pressure is is normal outdoor unit really high? Check if the operation mode of Set the correct operation Replace the pressure switch indoor unit is set properly? mode...

  • Page 140: Troubleshooting For Malfunction Without Active Error Code

    TROUBLESHOOTING Troubleshooting for Malfunction without Active Error Code Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Air Conditioner will not start up No power supply, or poor connection for power After energization, operation indicator isn’t Confirm whether it's due to power failure. plug bright and the buzzer can't give out sound If yes, wait for power recovery.
  • Page 141 TROUBLESHOOTING Troubleshooting for Malfunction without Active Error Code Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Malfunction of the IDU fan motor The IDU fan motor can’t operate Refer to troubleshooting for H6 for mainte‑ nance method in details Malfunction of the ODU fan motor The ODU fan motor can't operate Refer to point 4 of maintenance method for details...
  • Page 142 TROUBLESHOOTING Troubleshooting for Malfunction without Active Error Code Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Cylinder of compressor is blocked Compressor can't operate Repair or replace compressor Air Conditioner is Leaking Drain pipe is blocked Water leaking from indoor unit "Eliminate the foreign objects inside the drain pipe"...

  • Page 143: Wiring Diagrams

    WIRING DIAGRAMS Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange 600007000575 Figure 801 9-12K Indoor Unit Wiring Diagram...

  • Page 144: 18-24K Indoor Unit Wiring Diagram

    WIRING DIAGRAMS Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●...

  • Page 145: Indoor Unit Wiring Diagrams

    WIRING DIAGRAMS Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●...
  • Page 146 WIRING DIAGRAMS N(1) 60000706067401 9-12K Outdoor Unit Wiring Diagrams Figure 8054...

  • Page 147: 18-24K Outdoor Unit Wiring Diagrams

    WIRING DIAGRAMS Figure 805 18-24k Outdoor Unit Wiring Diagrams 6361000047001 Figure 806 36k Outdoor Unit Wiring Diagrams...

  • Page 148: Parts Catalog

    PARTS CATALOG 9K Indoor Unit FIgure 901...
  • Page 149 PARTS CATALOG 9k Indoor Unit FIGURE 901 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700627 300036 ‑ Front Panel Assy FSHW09A1A 69700628 30565260 ‑ Display Board FSHW09A1A 69700629 2002249501 ‑ Front Case Assy FSHW09A1A 69700630 26112508 ‑ Helicoid Tongue FSHW09A1A 69700631 10512037 ‑...

  • Page 150: Indoor Unit

    PARTS CATALOG 12k Indoor Unit FIgure 902...

  • Page 151: Indoor Unit

    PARTS CATALOG 12k Indoor Unit FIGURE 902 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700659 300022 ‑ Front Panel Assy FSHSW12A1A 69700628 30565260 ‑ Display Board FSHSW12A1A 69700661 200022 ‑ Front Case Assy FSHSW12A1A 69700662 26112436 ‑ Helicoid Tongue FSHSW12A1A 69700631 10512037 ‑...

  • Page 152: Indoor Unit

    PARTS CATALOG 18K Indoor Unit 18K Unit Figure 903 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700691 20192703P ‑ Decorative Strip FSHW18A3A 69700692 300035 ‑ Front Panel Assy FSHW18A3A 69700628 30565260 ‑ Display Board FSHW18A3A 69700694 11122089 ‑ Filter Sub‑Assy FSHW18A3A 69700695 2019261201 ‑...
  • Page 153 PARTS CATALOG 18K Indoor Unit Figure 903 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700700 26112512 ‑ Helicoid Tongue FSHW18A3A 69700631 10512037 ‑ Left Axile Bush FSHW18A3A 69700702 22202571 ‑ Rear Case assy FSHW18A3A 69700481 76712012 ‑ Rubber Plug (Water Tray) FSHW18A3A 69700635 7651205102 ‑...
  • Page 154 PARTS CATALOG 24K Indoor Unit Figure 904 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700732 300021 ‑ Front Panel Assy FSHW24A3A 69700733 11012007 ‑ Filter Sub‑Assy FSHW24A3A 69700734 2425245301 ‑ Screw Cover FSHW24A3A 69700735 200116 ‑ Front Case Assy FSHW24A3A 69700736 10512737 ‑...
  • Page 155 PARTS CATALOG 24K Indoor Unit Figure 904 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700635 7651205102 ‑ O‑Gasket sub‑assy of FSHW24A3A Bearing 69700743 10352057 ‑ Cross Flow Fan FSHW24A3A 69700744 24212178 ‑ Evaporator Support FSHW24A3A 69700745 11001000095 ‑ Evaporator Assy FSHW24A3A #N/A #N/A...
  • Page 156 PARTS CATALOG 36K Indoor Unit Figure 905 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700592 22430024 ‑ Receiver Window/DIS‑ FSHSW36A3A PLAY COVER 69700593 20000300022S ‑ Front Panel FSHSW36A3A 69700594 2421212001 ‑ Stand Bar FSHSW36A3A 69700470 11122106 ‑ Filter Sub‑Assy FSHSW36A3A 69700596 20900700005 ‑...
  • Page 157 PARTS CATALOG 36K Indoor Unit Figure 905 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700598 1051216701 ‑ Lower Guide Louver FSHSW36A3A 69700599 1051216902 ‑ Air Louver 2 FSHSW36A3A 69700600 1051216802 ‑ Air Louver 1 FSHSW36A3A 69700477 10582086 ‑ Connecting Rod/LOUVER FSHSW36A3A 69700478 26112158 ‑...

  • Page 158: Outdoor Unit

    PARTS CATALOG 9K Outdoor Unit FIgure 906...
  • Page 159 PARTS CATALOG 9K Outdoor Unit Figure 906 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700000 1473012 ‑ Front Grill FSHSR09A1A 69700772 153304901 ‑ Front Panel Assy FSHSR09A1A 69700773 10333004 ‑ Axial Flow Fan FSHSR09A1A 69700774 1501308507 ‑ Fan Motor FSHSR09A1A 69700775 0120388105P ‑...

  • Page 160: Outdoor Unit

    PARTS CATALOG 12k Outdoor Unit FIgure 907...

  • Page 161: Outdoor Unit

    PARTS CATALOG 12k Outdoor Unit Figure 907 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700000 1473012 ‑ Front Grill FSHSR12A1A 69700772 153304901 ‑ Front Panel Assy FSHSR12A1A 69700773 10333004 ‑ Axial Flow Fan FSHSR12A1A 69700774 1501308507 ‑ Fan Motor FSHSR12A1A 69700808 0120388103P ‑...

  • Page 162: Outdoor Unit

    PARTS CATALOG 18k Outdoor Unit FIgure 908...
  • Page 163 PARTS CATALOG 18kOutdoor Unit Figure 908 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700837 16004000006 ‑ Front Grill FSHSR18A3A 69700838 3060055 ‑ Front Panel Assy FSHSR18A3A 69700839 10335008 ‑ Axial Flow Fan FSHSR18A3A 69700840 01700000093P ‑ Chassis Sub‑assy FSHSR18A3A 69700164 6123401 ‑...
  • Page 164 PARTS CATALOG 24k Outdoor Unit FIgure 909...
  • Page 165 PARTS CATALOG 24k Outdoor Unit Figure 909 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700837 16004000006 ‑ Front Grill FSHSR24A3A 69700838 3060055 ‑ Front Panel Assy FSHSR24A3A 69700839 10335008 ‑ Axial Flow Fan FSHSR24A3A #N/A #N/A FSHSR24A3A 69700870 01700000161P ‑ Chassis Sub‑assy FSHSR24A3A #N/A #N/A...
  • Page 166 PARTS CATALOG 36k Outdoor Unit 11 12 13 14 15 FIgure 910...
  • Page 167 PARTS CATALOG 36k Outdoor Unit Figure 910 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 69700572 16004060005 ‑ Front Grill FSHSR36A3A 69700573 153501405 ‑ Front Panel Assy FSHSR36A3A 69700514 01303249P ‑ Front Side Plate Sub‑ FSHSR36A3A Assy 69700515 10335014 ‑ Axial Flow Fan FSHSR36A3A #N/A #N/A...

  • Page 168: 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 169: Appendix 3: Pipe Expanding Method

    APPENDIX Appendix 3: 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 170: Limited Warranty

    2. Any defective part to be replaced must be made available to FRIEDRICH in exchange for the replacement part. You must present proof of the original date of installation of the product in order to establish the effective date of the warranty. Otherwise, the effective date will be deemed to be the date of manufacture plus thirty days.

  • Page 171: Friedrich Authorized Parts Depots

    CUSTOMER SATISFACTION and QUALITY ASSURANCE Friedrich is a conscientious manufacturer, concerned about customer satisfaction, product quality, and controlling warranty costs. As an Authorized Service Provider you play a vital role in these areas. By adhering to the policies and procedures you provide us with vital information on each warranty repair you complete. This information is used to identify product failure trends, initiate corrective action, and improve product quality, thereby further reducing warranty expenses while increasing customer satisfaction levels.

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