ISR-20SS Service Manual

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1 ISR-20SS Service Manual (The picture is only for reference, and specific appearance and configuration are subject to the real product) 1 / 39

Important Safety Notice The Maintenance Manual is only for the use of maintenance personnel with certain experience and background in electrical, electronic and mechanical field.

Fujidenzo Home Appliances Technical Maintenance Manual Copyright @2016 All rights reserved.

2 Important Safety Notice The Maintenance Manual is only for the use of maintenance personnel with certain experience and background in electrical, electronic and mechanical field. Any attempt to repair main devices may lead to personal injury and property loss. Manufacturers or distributors are not responsible for the content of the Manual and interpretation thereof. Fujidenzo Home Appliances Technical Maintenance Manual All rights reserved. Replication of all or part of the Manual in any forms shall not be allowed without written approval by Excellence Appliance Technologies, Inc. Contents 1.Safety Warning Code Warning for operation safety Safety instruction for refrigerant Description for product features Installation and commissioning Handling... Error! Bookmark not defined. 3.1 Handling Door Disassembly and Assembly Installation location Leveling of the refrigerator Door reversal (None) Installation of handle Installation of door lock(none) Adjustment to level the door Adjustment to shelves(none) Terms Definition of model (None) Location of nameplate Product specification Type specification(none) Electrical parameters / 39

3 5.3 Inside temperature Defrosting parts Circuit diagram Internal view and dimension Main parts and their names External dimension Refrigerating piping system and circulating route of cooling air Refrigerating piping system Circulating route of cooling air Dismantling of parts Parts on the door Parts inside the refrigerator Light system Air duct components refrigerating chamber Air duct components in freezing chamber and fan motor Evaporator and temperature sensing system Compressor case Display control board Main control boardl Bar counter(none) Water dispenser(none) Ice maker(none) Function and operation Operation panel Temperature control give an alarm Defrosting Function Selection Self-diagnosis Compressor fan control(none) Circuit description Power Supply Test circuit for door switch Temperature test circuit BLDC Fan motor circuit Fan motor circuit of the ventilation door (R/T)Resistance value of the sensor (R/T) Troubleshooting Method Figures and details of repair parts(documents are provided separately) Figures(Documents are provided separately) List of parts and components(documents are provided separately) Appendix: Electrical Schematic Diagram Refrigerator maintenance tooling and equipment and material / 39

4 1. Safety Warning Code 1.1 Warning for operation safety 4 / 39

5 5 / 39

6 6 / 39

7 1.2 Safety instruction for refrigerant 7 / 39

2. Description for product features This product is provided with following features: (The picture is only for reference, and specific appearance and configuration are subject to the real product) 1.

8 2. Description for product features This product is provided with following features: (The picture is only for reference, and specific appearance and configuration are subject to the real product) 1. Defrosting will be done automatically in freezing chamber, avoiding the trouble of manual defrosting. 2. Featuring with full integration of quick-freezing, energy-saving and noise reduction technologies. it achieves the result of energy-saving and noise reduction to the maximum by optimization of refrigerating system 3. the compressor guarantees excellent refrigerating effect and a long service life of compressor. 4. Removable door seal, combining mildew-proof and antimicrobial with the benefits of clean and healthy, and it is convenient for cleaning. 5. The hidden hinge system, secure and good in appearance; can realize door self-lock and door-opening limits. 8 / 39

9 3. Installation and commissioning 3.1 Handling 1) Protect the refrigerator in moving it,same as shown as left photo, please move it by handcart with cushion 2) Remove all packing materials and bottom cushion, then move into house for placement 3) After moving it to appropriate location, wait for 2 hours before power on. 3.2 Door Disassembly and Assembly The refrigerator door needs to be dismantled if it cannot enter the room in the whole. 3.3 Installation location Location that is easy for ventilation shall be chosen to facilitate heat dissipation, enhance its performance and reduce the energy consumption. 3.4 Leveling of the refrigerator If the refrigerator cannot be placed steadily, adjust the footing to level it. 9 / 39

10 3.5 Door reversal (None) 3.6 Installation of handle Note: Figures in the user manual are only for reference. The actual product may differ slightly. The refrigerator must be disconnected from the source of electrical supply before attempting the installation of accessory. a. fix the bolt of handle b. tighten the screw of handle c. cover screw hole by cap (Pictures and objects are not consistent, in order to prevail in kind) 3.7 Installation of door lock (None) 3.8 Adjustment to level the door a. To lower the refrigerator door: First, rotate the locking nut counterclockwise to loosen, then rotate the adjusting nut counterclockwise to lower the position of the door, lastly, tighten the locking nut by turning clockwise. b. To raise the refrigerator door higher: First, rotate the locking nut counterclockwise to loosen, then rotate the adjusting nut clockwise to raise the position of the door, lastly, tighten the locking nut by turning clockwise. 10 / 39

subject to the real product) 5. Product specification 5.1 Type specification(none) 5.

11 3.9 Adjustment to shelves(none) 4. Terms 4.1 Definition of model (None) 4.2 Location of nameplate (The picture is only for reference, and specific appearance and configuration are subject to the real product) 5. Product specification 5.1 Type specification(none) 5.2 Electrical parameters Product Name ISR-20SS Name Item Type Specification Compressor / LU118PY1 Starter PTC / Compressor Overload OLP B P A protector 11 / 39

12 Winding resistance of compressor wiring terminal / 20 U-V 12.4Ω±5% 20 U-W 12.4Ω±5% 20 W-V 12.4Ω±5% Motor Lights inside the refrigerator Variable frequency driver board Fan motor of the freezing chamber Ventilation door of the refrigerating chamber Condensatio n fan Lights inside the freezing chamber Lights inside the refrigerating chamber Switch of the refrigerator door / ITRP04BX V(50/60)Hz DC12V/ 4W DC12V / DC12V / DC12V / 12V 2.5W / 5V 0.4W 5.3 Inside temperature Temperature tolerance 2 C Compartment The highest ( C) Lowest ( C) Freezing Refrigerating 8 2 Variable temperature / / 12 / 39

13 5.4 Defrosting parts Defrosting period Initial defrosting period Normal defrosting period Temperature is lower than 0 C 6~24 hours Defrosting sensor NTC B3839 Defrosting temperature controller / / Thermal fuse Can t be restored V 250W 840 UL,VDE RoHS Defrosting heater in freezing chamber / JRQ UL VDE(TUV) ExnAIIT1x LG REACH,RoHS 5.5 Circuit diagram 13 / 39

14 6. Internal view and dimension 6.1 Main parts and their names (The picture is only for reference, and specific appearance and configuration are subject to the real product) 14 / 39

15 6.2 External dimension Front view Side view Down view Open Door Maximum open angle of door(135 ) (The picture is only for reference, and specific appearance and configuration are subject to the real product) 15 / 39

16 7. Refrigerating piping system and circulating route of cooling air 7.1 Refrigerating piping system 1.Compressor 2.Exhaust transition pipe 3.Left condenser 4.Anti-condensationg tube 5.Right condenser 6.Dry filter 7.Capillary tube 8.Evaporator 9.Return pipe 10.Return transition pipe (The picture is only for reference, and specific appearance and configuration are subject to the real product) 16 / 39

17 7.2 Circulating route of cooling air Refrigerating Room Freezing Room 17 / 39

Door tray While squeezing it inward, lift up the baffle and take it out

18 8. 8. Dismantling of parts 8.1 Parts on the door Door seal 1) Door seal is installed into door liner groove. 2) Open the refrigerator door; 3) Take the door seal 1out of door liner; Door tray While squeezing it inward, lift up the baffle and take it out from refrigerator liner. Door stopper Rollover beam None None 8.2 Parts inside the refrigerator Shelves 1) Lift up the division plate with a proper force and pull it out towards yourself; 18 / 39

Drawer 1) The drawer is located at the bottom of freezing and refrigerating

flat-blade screwdrivers at two grooves marked with red circles shown in the

direction shown in the picture and separate LED light panel from the hook;

19 Drawer 1) The drawer is located at the bottom of freezing and refrigerating chambers; 2) Pull the drawer out completely; Lift it up slightly and take it out from the refrigerator. 8.3 Light system Light 1) Turn over the lampshade hard with your hands or two flat-blade screwdrivers at two grooves marked with red circles shown in the picture and take it down 2) Push away the hook with your hand along the arrow direction shown in the picture and separate LED light panel from the hook; then take down LED light panel 3) Remove the connecting harness terminals on LED light panel and take down the LED light panel. 19 / 39

Light switch 1) As shown in the picture, loosen by screwdriver 3

joint in the circle and push it outward along the arrow direction.

screwdriver the screws on the positions shown in the picture

2) Pull the decorative cover of refrigerating air duct to the right

20 Light switch 1) As shown in the picture, loosen by screwdriver 3 fixing screws of the hinge cover and take it down 2) Press the snap joint in the circle and push it outward along the arrow direction. Complete the disassembly of door light switch. Pilot light Fresh light None None 8.4 Air duct components refrigerating chamber 1) Remove by cross screwdriver the screws on the positions shown in the picture anticlockwise. 2) Pull the decorative cover of refrigerating air duct to the right along horizontal direction until air duct decoration cover completely falls off from refrigerator body and air duct foam and take out the decoration cover of refrigerating air duct. 20 / 39

1) Hold of air duct foam in refrigerating chamber and pull it towards the right along the arrow direction shown in the picture until

air duct cover with flat-blade screwdriver or blade; then, remove by cross screwdriver the two screws fixing air duct cover

2) As shown in the right picture, hold of upper part of freezing air duct as shown in the picture, pull it outward along the arrow

21 1) Hold of air duct foam in refrigerating chamber and pull it towards the right along the arrow direction shown in the picture until air duct foam is separated from refrigerator body, remove connecting terminals of ventilation door and take out refrigerating air duct foam. 8.5 Air duct components in freezing chamber and fan motor Disassembly and installation of Air duct 1) First, take out the screw cap of air duct cover with flat-blade screwdriver or blade; then, remove by cross screwdriver the two screws fixing air duct cover anticlockwise. 2) As shown in the right picture, hold of upper part of freezing air duct as shown in the picture, pull it outward along the arrow direction with strength until air duct is separated from refrigerator body (WARNING: Be careful not to break the holding clips while doing this step), remove the connecting harness between fan and refrigerator body, and take down freezing air duct. 3) Pull the snap joint of upper air duct outward to make cover plate of upper air duct in freezing chamber fall off from air duct. 21 / 39

4) Evaporator cover ahead of freezing chamber. After the removal of upper air duct in freezing chamber.

until it is separated from refrigerator body and take it out.

Pull the motor fan of upper air duct in freezing chamber outward to make the fan blade separate from the motor.

22 4) Evaporator cover ahead of freezing chamber. After the removal of upper air duct in freezing chamber. Hold of cover plate of freezing lower air duct shown in the picture, pull it out along the arrow direction until it is separated from refrigerator body and take it out. Fan motor of air duct 1) After the removal of cover plate of upper air duct in freezing chamber. Pull the motor fan of upper air duct in freezing chamber outward to make the fan blade separate from the motor. 2) Remove by cross screwdriver the two fixing screws anticlockwise. Complete disassembly of the motor 8.6 Evaporator and temperature sensing system Evaporator in freezing chamber 22 / 39

Evaporator in freezing chamber 1) Remove the air duct components in freezing chamber. 2) Disconnect all connectors.

Components on the evaporator Defrost thermostat: None Fuse(1) 1) Disconnect the fuse connector. 2) Cut off the band which fixes the fuse.

*Be careful not to break the welding of the evaporator in case that only the fuse needs to be replaced.

23 Evaporator in freezing chamber 1) Remove the air duct components in freezing chamber. 2) Disconnect all connectors. 3) Remove the welding on inlet and outlet tubes. 4) Remove two screws which are used to fix the evaporator and remove the evaporator. Components on the evaporator Defrost thermostat: None Fuse(1) 1) Disconnect the fuse connector. 2) Cut off the band which fixes the fuse. 3) Separate the fuse and the evaporator. *Be careful not to break the welding of the evaporator in case that only the fuse needs to be replaced. Defrost sensor(2) The defrost sensor is located on top of the evaporator. 1) Disconnect the connector of defrost sensor 2) Cut off the band which fixes the sensor. 3) Separate the sensor and the evaporator. *Don t break the welding of the evaporator in case that only the sensor needs to be replaced. 23 / 39

Defrost heater(3) The defrost heater is located at bottom of the evaporator. Disconnect the connector of defrost heater.

Don t break the welding of the evaporator in case that only the defrost heater needs to be replaced.

in freezing chamber 1. To remove the sensor cover, you may squeeze it up and down; 2.

24 Defrost heater(3) The defrost heater is located at bottom of the evaporator. Disconnect the connector of defrost heater. Cut off the band which fixes the defrost heater. Take off the defrost heater from the evaporator. Don t break the welding of the evaporator in case that only the defrost heater needs to be replaced. Evaporator in refrigerating chamber Evaporator in refrigerating chamber Components on the evaporator Temperature Controller Sensor Sensor in freezing chamber 1. To remove the sensor cover, you may squeeze it up and down; 2. Take the sensor out from card slot; None None None Sensor in refrigerating chamber Sensor in variable temperature chamber Ambient temperature senser The ambient temperature senser is located on the display PCB Refer to the method of disassembling the freezer compartment sensor. None 24 / 39

Terminal box of the compressor Remove the screws fixing block terminal, press the tap on block terminal and take

25 8.7 Compressor case Rear cover and compressor case 1)Remove by cross screwdriver the screws fixing back cover plate of compressor chamber anticlockwise 2)Take the back cover plate of compressor chamber upward. Terminal box of the compressor Remove the screws fixing block terminal, press the tap on block terminal and take down block terminal cover with flat-blade screwdriver. Condenser fan motor Condenser fan motor Standby condenser None None 25 / 39

Piping system in the compressor case 1. Compressor 2.

Left condenser 5.Anti-water condensation pipe 6. Filter 7.

8 Display control board 1) Use vacuum cap to pull the

26 Piping system in the compressor case 1. Compressor 2. Compresssor suction pipe 3. Transition tube 4. Left condenser 5.Anti-water condensation pipe 6. Filter 7. Suction pipe 8.Capillary 9. Right condenser 8.8 Display control board 1) Use vacuum cap to pull the control panel outwards 2)Disconnect the fast connector, then remove the control PCB 26 / 39

8.9 Main Control Board 1 ) Remove the screw

2)Pull the lock of fast connector upwards,then

frequency driver board b) Include variable

anticlockwise,then remove the control PCB a)

27 8.9 Main Control Board 1 ) Remove the screw anticlockwise, then remove the PCB housing cover 2)Pull the lock of fast connector upwards,then disconnect the fast connector a) Without variable frequency driver board b) Include variable frequency driver board 3) Remove the screw anticlockwise,then remove the control PCB a) Without variable frequency driver board b) Include variable frequency driver board 27 / 39

28 8.8 Bar counter(none) Disassembly and installation of bar counter Disassembly and installation bar doorseal None None 8.9 Water dispenser(none) Disassembly and installation of water valve Disassembly and installation of water tank None None 8.10 Ice maker(none) Disassembly and installation of ice maker Disassembly and installation of water system Disassembly and installation ice machine sensor None None None 9. Function and operation 9.1 Operation panel (The above picture is for reference only, the actual configuration to buy in kind or vendor statement shall prevail) Icons: Button: 1. Freezing temperature display A. Freezing temperature regulating 2. Refrigerating temperature display B. Refrigerating temperature regulating 3. Holiday mode C. Mode 4. Quick cooling by freezing D. Unlock 5. Quick cooling by refrigerating 6. Unlock 28 / 39

29 9.2 Temperature Control Press the Refrigerating Temperature Regulating button (B button) and the refrigerating temperature area flashes prompt, then press the Refrigerating button to regulate the set temperature and a beep sound comes. The setting range is 2 ~ 8 C, and a press of the button leads to a change of 1 C; The temperature is regulated as: 8 C -7 C -6 C -5 C -4 C -3 C -2 C -8 C -7 C,the new set temperature becomes effective after being locked. Press the Freezing Temperature Regulating button (Button A), and the freezing temperature area flashes prompt, then press the Freezing button to regulate the set temperature and a beep sound comes. The setting range is-16 C ~ -24 C, and a press of the button leads to a change of 1 C; The temperature is regulated as: -16 C C C C C C C C C C C, the new set temperature becomes effective after being locked. Mode Setting: Press the Status button (Button C) to select the operating status of refrigerator according to the following order: Holiday Mode: Press the C button to select the Holiday Mode and the icon 3 is on, and the refrigerator will operate in Holiday mode after being locked. In the Holiday mode, the refrigerating chamber is closed and the freezing chamber is automatically set to -18 C Quick Cooling Mode: Press the C button to select the Quick Cooling Mode and the icon 5 is lighted up, and the refrigerator will operate in Quick Cooling mode after being locked. In the Quick Cooling mode, the refrigerating chamber is automatically set to 2 C Quick Freezing Mode: Press the C button to select the Quick Freezing Mode and the icon 4 is lighted up, and the refrigerator will operate in Quick Freezing mode after being locked. In the Quick Freezing mode, the freezing chamber is automatically set to -24 C 9.3 Give an Alarm When door of refrigerating chamber or freezing chamber is opened, the door-opening melody is ringing, and a long press of the 2s mode button may cancel/start the door-opening melody (the default is starting the ring of a buzzer). If the door is open for 120 seconds, an alarm will be sent by buzzer. After that, every 1 second long leads to one alarm, until the door is closed, then press any button to cancel the alarm. 29 / 39

30 In case of a power failure, it will work in the status set before power interruption after energized again. 9.4 Defrosting Defrosting theory: The defrosting of evaporator is realized by turning on the heater, following the temperature rise, the frost on evaporator becomes melts, and the melted ice becomes water and flows into the drain pan via the draining system, the water in drain pan is exposed into the environment and eventually evaporates. Defrosting steps: Compressor is switched off the air duct closed the fan in freezer chamber works for 3~10 min(for different kinds of refrigerators, the time is different too) the heater starts working the heater is switched off when the temperature rises to the defrost temp setting defrosting done. 9.5 Function Selection a. Locking and Unlocking In unlocking status, press the D button for 2 seconds to enter the operation locking status, and the icon 6 displays the locking pattern; in locking status, press the D button for 2 seconds, and the icon 6 displays the unlocking pattern, the lock is released. b. Holiday Mode Press the C button to select the Holiday Mode, and the icon 1 is lighted up, and the refrigerator will operate in Holiday mode after being locked. c. Fast cooling mode Press the C button to select the Quick Cooling Mode and the icon 5 is lighted up, and the refrigerator will operate in Quick Cooling mode after being locked. d. Temperature setting in refrigerating chamber Press the Refrigerating Temperature Regulating button (B button) and the refrigerating temperature area flashes prompt, then press the Refrigerating button to regulate the set temperature and a beep sound comes. The setting range is 2 ~ 8 C, and a press of the button leads to a change of 1 C. e. Temperature setting in freezing chamber Press the Refrigerating Temperature Regulating button (B button) and the refrigerating temperature area flashes prompt, then press the Refrigerating button to regulate the set temperature and a beep sound comes. The setting range is -16 ~ -24 C, and a press of the button leads to a change of 1 C. The temperature is regulated as: -16 C C C C C C C C C C C after the temperature regulating, the nixie tube flashes for 5 seconds, and the new set temperature becomes effective after being locked. Note: When the set temperature of refrigerating chamber or freezing chamber is changed, the relevant status mode (such as Quick Cooling status, Quick Freezing status, Quick Cooling and Quick Freezing mode, or Holiday mode), set in refrigerating chamber or freezing chamber, is exited/canceled immediately. 30 / 39

31 9.6 Self-diagnosis a. Phase I of display panel self-inspection: Fault detection of the connected sensor. If the resistance therein is found abnormal, the fault code will be displayed on the panel and the alarm be triggered to buzz for as long as 6 seconds before the phase II of self-inspection begins; if the sensor functions well, then the phase II of display panel self-inspection will automatically starts. Inspection of all the temperature input ports. If something goes wrong, corresponding fault code will be shown on the display panel. b. Phase II of display panel self-inspection: Segments will be displayed with the internals of 0.25 second and all icons will be lighten up from top to bottom and from left to right: - is lighten up Two 8 in freezer zone are lighten up as the segment order of a,b,c,d,e,f,g Temperature Degrees in Freezer icon is lighten up 8 in refrigerator zone is lighten up as the segment order of a,b,c,d,e,f,g No Refrigeration icon is lighten up Temperature Degrees in Refrigeration icon is lighten up VACATION icon is lighten up VACATION is lighten up QUICK FRZ icon is lighten up QUICK FRZ is lighten up QUICK REF icon is lighten up QUICK REF is lighten up LOCK icon is lighten up LOCK is lighten up; all lighten up. c. Phase III of display panel self-inspection: Press the Freezing button and 01 will be displayed on the LCD. Press the Refrigeration button and 02 will be displayed on the LCD. Press the Mode button and 03 will be displayed on the LCD. Press the Unlock button and 04 will be displayed on the LCD. NOTE: The above number will only be displayed when you press and then quickly release the button. Each button-press will be accompanied by one buzzing sound. NOTE: The display panel will automatically end up self-inspection and enter normal operation mode one minute after the self-inspection begins. NOTE: During the period of self-inspection, if communication failure occurs, E6 will be displayed on the panel while the self-inspection mode will not exit and the circuit shall be immediately troubleshot. NOTE: E6 will be shown on the panel if the display panel fails to receive correct communication messages during 5 seconds after powered on, or if it fails to receive correct data during 60 seconds when de-energized. NOTE: E6 will be shown on the panel if the main-board fails to receive correct communication messages during 8 seconds after powered on for 15 seconds, or if it fails to receive correct data during 60 seconds when powered off. 31 / 39

32 9.7 Compressor fan control(none) 10. Circuit Description 10.1 Power Supply The AC input power is reduced in voltage by SMPS control chip and filtered off wave by the inductance-capacitance filter, then output the DC 12V power which will mainly power the relay that controls strong current. Relay is used to control the strong current loaded switches of compressor, ice maker and defrost heater. The DC 12V power will output stable 5V electricity after passing through the adjustor 7805, to power for the main control chip and thus monitor the temperature changes in refrigerator Test circuit for door switch As is shown in the picture, R-S/w and GND are directly connected with the door switch. Therefore, if the refrigerator door is closed, the said switch will be turned off and a high power level of MCU port be detected and if the refrigerator door is opened, the said switch will be turned on and a low power 32 / 39

level of MCU port be detected. MCU is able to tell whether the door is closed or opened from high or low power level. 10.

coefficient of resistance in medium temperature.

33 level of MCU port be detected. MCU is able to tell whether the door is closed or opened from high or low power level Temperature test circuit It s conducted by the sensor, making use of the characteristics that resistance value reduces as the temperature increases, and the thermostat that has temperature coefficient of resistance in medium temperature. The characteristic that resistance value reduces as the temperature increases is deemed to have negative slope or negative temperature coefficient (NTC), and such thermostat is called as NTC thermostat. The resistance value changes sensitively with temperature and typically changes 7% ~ 3% per degree centigrade. Sensor used in the refrigerator is NTC thermostat. There is following computing formula for the sensor: Sampling voltage / reference voltage = R1 / (RNTC + R1) AD value / reference AD value = R1 / (RNTC + R1) The reference voltage is 5V, RNTC is the resistance value of the sensor, R1 is R31\R32\R33 in schematic diagram that is 5.1K 10.4 BLDC Fan motor circuit The fan in the freezing chamber is running when the compressor is operating. Check 12V and FAN to see if there is a voltage of 12V. When in normal operation, the fan is in low level and the voltage between 12V and FAN is more than 11V. If there s no voltage when the compressor is in operation, fan motor or electric control panel can be replaced. 33 / 39

10.5 Fan motor circuit of the ventilation door Stepping motor is installed on the ventilation door while the main control board outputs square waves.

34 10.5 Fan motor circuit of the ventilation door Stepping motor is installed on the ventilation door while the main control board outputs square waves. The ventilation door will open when the refrigerator needs refrigeration and will be closed when do not. 10.6(R/T)Resistance value of the sensor (R/T) Tx( ) R(KΩ) Tx( ) R(KΩ) Tx( ) R(KΩ) Tx( ) R(KΩ) Tx( ) R(KΩ) / 39

35 11. Troubleshooting Method 12. Figures and details of repair parts (Documents are provided separately) 12.1 Figures(Documents are provided separately) 12.2 List of parts and components(documents are provided separately) 13 Appendix: 13.1 Electrical Schematic Diagram (Model:***) 13.2 Refrigerator maintenance tooling and equipment and material 35 / 39

disassemble 2 slotted screwdriver/scraper screw and rivet assemble

assemble and disassemble 4 Vacuum/Suction Cap display panel and air

36 Tools Needed No. Name Photo Main Usage 1 Phillips screwdriver screw assemble and disassemble 2 slotted screwdriver/scraper screw and rivet assemble and disassemble 3 Socket spanner 5/16 hinge and compressor screw assemble and disassemble 4 Vacuum/Suction Cap display panel and air duct cover disassemble 5 Allen wrench(2.8~4mm) handle assemble and disassemble 6 Vise grip pliers sealing process tube 36 / 39

37 7 Pipe cutter pipe cutting 8 Knife assistive tool 9 Nipper pliers assistive tool 10 Capillary tube scissors Shear capillary Equipment No. Name Photo Main Usage 1 Vacuum pump vacuum pumping 2 Electronic scale weighing refrigerant/gas 37 / 39

38 3 High pressure nitrogen with piezometer pipe and cooling system(condenser, evaporator, etc) impurities clean 4 Soldering gun heating and welding 5 Quick coupling connection process pipeline, vacuum or charge refrigerant wi ll be used. 6 hand leak detector welding point leakage detect, if no, use soap-suds Materials No. Name Photo Main Usage 1 Process pipeline Charge the refrigerant 2 Dry filter Involving a system failure to be replaced 38 / 39

3 Copper welding rod tube welding 4 Refrigerant/gas Add

reversible door option Fujidenzo Home Appliances If you

manufacturer, please contact: service@exatech.com.

39 3 Copper welding rod tube welding 4 Refrigerant/gas Add refrigerant to the system 5 Sealing tape door fixing for reversible door option Fujidenzo Home Appliances If you need to get detailed technical information from the manufacturer, please contact: service@exatech.com.ph Address: 22 D.Tuazon St., cor. L.Castillo St., Quezon City 39 / 39

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