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Service Manual 2.2 Operation Characteristic Curve Cooling Heating Condition Condition Indoor:DB 20°C Indoor:DB27°C WB19°C Indoor air flow: Super High Indoor air flow: Super High Pipe length:5m Pipe length:5m Compressor Frequency(Hz) Compressor Frequency(Hz) 2.3 Capacity Variation Ratio According to Temperature Cooling Heating Condition Indoor:DB 20°C...
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Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Rated cooling condition(°C) connecting indoor and Model (DB/WB) Indoor P (MPa) T1 (°C) T2 (°C) 27/19 35/24 0.9 to 1.1 12 to 14 75 to 37 27/19 35/24 0.9 to 1.1 12 to 14 75 to 37...
Service Manual 4. Refrigerant System Diagram INDOOR UNIT OUTDOOR UNIT GAS SIDE 3-WAY VALVE 4-Way valve Discharge HEAT EXCHANGE (EVAPORATOR) Accumlator Suction COMPRESSOR HEAT EXCHANGE (CONDENSER) Intercooler LIQUID SIDE Electron Strainer Strainer Strainer Capillary Strainer 2-WAY VALVE expansion valve COOLING HEATING Gas pipe Technical Information...
Service Manual 5. Electrical Part 5.1 Wiring Diagram Symbol Symbol Color Symbol Symbol Color Symbol Name Green Yellow Brown COMP Compressor YEGN Yellow/Green 60000700033807 Technical Information...
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Service Manual 60000700051401 Technical Information...
Service Manual 5.2 PCB Printed Diagram ● Top view Name Neutral wire Needle stand for indoor fan Auto button Up&down swing motor left&right swing motor Interface of temperature sensor Terminal for display board connection Terminal of jumper cap Communication wire Connect earthing wire(only for the mode with this function) 11 Fuse...
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Service Manual ● Top view Name 8 9 10 4 5 6 Terminal of compressor compressor sensor Te r m i n a l o f e l e c t r o n i c Te r m i n a l o f e l e c t r o n i c sensor ●...
Service Manual 6. Function and Control 6.1 Remote Controller Introduction Buttons on Remote Controller button,a mode is selected in a sequence that goes from AUTO, COOL, DRY, FAN, and HEAT *, with heating function. AUTO COOL HEAT Swing ▲ Swing Swing Swing ▲...
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Service Manual 2. FAN button ATUO Note: It’s Low fan speed Low fan Medium-low fan Medium fan Medium-high fan High fan 3. MODE button AUTO COOL HEAT 4. +/- button 5. TURBO button button button 8. CLOCK button 9. TIMER ON/TIMER OFF button TIMER ON.
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Service Manual 10. TEMP button no display and 0-60°C °C or 32 or 60°C). button(This function is only available for some models) 12. I FEEL button 13. LIGHT button 14. X-FAN button 15. QUIET button 16. SLEEP button ), Sleep 2 ( ),Sleep 3 ( In Cool mode: In Heat mode:...
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Service Manual 17. About X-FAN function 18. About AUTO RUN 19. About turbo function as soon as possible. 20. About lock will be displayed on it, in 21. About swing up and down 22. About swing left and right 23. About switch between Fahrenheit and Centigrade 24.
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Service Manual 28.WIFI Function Operation Guide 1. General operation mode.) HIGH and HIGH. 2. Optional operation Replacement of Batteries in Remote Controller battery correct. reinstall Note: remove Cover of battery box Technical Information...
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Service Manual ON/OFF button FAN button MODE button +/- button TURBO button button button CLOCK button TIMER ON/ WiFi TIMER OFF button TEMP button button (before opening cover (after opening cover I FEEL button ON/OFF button LIGHT button FAN button WiFi button QUIET button MODE button...
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Service Manual ATUO Low fan Medium-low fan Medium fan Medium-high fan High fan Note: ● It’s Low fan speed under Dry mode. ● X-FAN function:Hold fan speed button for 2s in COOL or DRY mode, the icon “ ” is displayed and the indoor fan will continue operation for a few minutes in order to dry the indoor unit even though you have turned off the unit.
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Service Manual Note: Outdoor temperature display is not available for some models. At that time, indoor unit receives " " signal, while it displays indoor set temperature. Press this button once, to turn on the I FEEL function, then the figure of "I FEEL"will be displayed, after every press of other function button, every 200ms to sendI FEEL once, after this function started, the remote controller will send temperatureto the main un it in every 10 minutes.
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Service Manual (4) When setting the initial temperature 30℃, under this temperature setting, after 7hours, the temperature will be decreased 1℃, after that the unit will keep onrunning under this temperature; In Heat mode: (1) Under the initial presetting temperature 16℃, it will run under this setting temperature all along. (2) Under the initial presetting temperature17℃-20℃, after Sleep function started up, the temperature will decrease 1℃...
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Service Manual 1. After powered on, press ON/OFF button, the unit will start to run. (Note: When it is powered on, the guide louver of main unit will close automatically.) 2. Press MODE button, select desired running mode. WiFi 3. Pressing + or - button, to set the desired temperature. 4.
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Service Manual 6.3 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Home Wi-Fi Cellular/ home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems iOS system Android system Support iOS7.0 and Support Android 4.0 and above version above version Download and installation App Download Linkage...
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Service Manual 6.4 Brief Description of Modes and Functions preset amb. (1)Cooling Mode If T amb. preset If T amb. preset If T preset preset preset amb. amb. preset Tamb. Start cooling Tpreset Original operating status Tpreset –2 ˚C Stop cooling ≥...
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Service Manual Stop heating preset Original operating status preset Start heating 6min. 3min. 6min. Compressor Outdoor fan <2 min. Indoor fan <2 min. preset preset wind wind Reversing valve Stop Condition and process of defrost Protection preset speed. Note: T indoor amb. indicated in defrost symbol is cleared.
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Service Manual Protection Designation of sensors (2) Mode Selection: 16(60.8 )~30°C(86 (5) SLEEP State Control Installation and Maintenance...
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Service Manual 1. In cooling mode: will decrease 1°C(1.8 Initial Temp. 0(start) Initial Temp. 0(start) Installation and Maintenance...
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Service Manual +1°C(1.8 amb. preset +1°C(1.8 +3°C(5.4 preset amb. preset +3°C(5.4 amb. preset +2°C(3.6 amb. preset +2°C(3.6 preset amb. preset , indoor fan will operate at low speed amb. preset (9) Up-and-Down Swinging Control i l o i t a O(0°) O(0°) (10) Display...
Service Manual Part : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself.
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Service Manual Safety Precautions for Installing and Relocating the Unit: To ensure safety, please be mindful of the following precautions. Warnings 1. When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the 2.When installing or moving this unit, do not charge the refrigerant which is not comply with that on the nameplate or 3.When refrigerant needs to be recovered during relocating or repairing the unit, be sure that the unit is running in cooling mode.Then, fully close the valve at high pressure side (liquid valve).About 30-40 seconds later, fully close the valve at low...
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Service Manual Safety Operation of Flammable Refrigerant Installation notes operating heater). The minimum room area is shown on the nameplate or following table a. table a - Minimum room area(m Maintenance notes — Its only allowed to be operated in the rooms that meet the requirement of the nameplate. —...
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Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.
Service Manual 8. Installation 8.1 Installation Dimension Diagram Drainage pipe Installation and Maintenance...
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Service Manual Installation procedures 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...
Service Manual 8.4 Electric Connection Requirement 8.2 Installation Parts-checking 1. Safety Precaution Name Name Wrapping tape Connection pipe Drainage pipe frame Connecting conditioner. cable(power cord) remote controller Wall pipe Air-conditioner Note: 8.3 Selection of Installation Location 1. Basic Requirement: 2. Grounding Requirement: 2.
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Service Manual 5. Connect the Pipe of Indoor Unit 3. Install Wall-mounting Frame Open-end wrench Wall Wall Level meter Mark in the middle of it Union nut Space Space Pipe Pipe joint Union nut to the to the Pipe Torque wrench wall wall above...
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Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe Screw Panel Wiring cover Indoor and outdoor power cord Indoor unit pipe Cable-cross Liquid hole pipe Band Drain hose Power connection wire Drain hose Connection pipe Band Indoor power cord Note: N(1) winding.
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Service Manual 8.6 Installation of Outdoor Unit 1. Fix the Support of Outdoor Unit(Select it according to the actual installation situation) . m) 15~20 expansion screws. 30~40 Note: 45~55 60~65 70~75 5. Connect Outdoor Electric Wire Handle screws are needed. Drain vent Chassis Note: the wiring connect is for reference only,...
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Service Manual Note: 2. Leakage Detection 8.8 Check after Installation and Test Operation The drain hose can't be fluctuant 1. Check after Installation installation. The water outlet The drain hose can't be placed can't be fluctuant The water in water outlet can't be emit noise.
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Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator When the outdoor unit receive signal of Gathering refrigerant Gathering ,the system will be forced to Nominal cooling mode...
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Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Decrease Overload or temperature is too All loads operate normally, frequency high;...
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Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Compressor intermediate Showing during middle cooling or frequence in middle heating test test state During cooling and drying...
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Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator During cooling and drying operation, compressor will stop Refer to the malfunction analysis System is while indoor fan will operate;...
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Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Malfunction of During cooling and drying phase current operation, compressor will stop detection while indoor fan will operate;...
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Service Manual Display Method of Indoor Unit Indicator Display (during blinking, ON 0.5s and OFF Dual-8 Malfunction A/C status Possible Causes 0.5s) Code Name Operation Cool Heating Display Indicator Indicator Indicator Normal communica- tion OFF 3S Defrosting will occur in and blink heating once...
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Service Manual 9.2 Procedure of Troubleshooting 1. Malfunction of Temperature Sensor F1, F2 Main detection points: Start eliminated eliminated eliminated Installation and Maintenance...
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Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: 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.
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Service Manual 3. Malfunction of Protection of Jumper Cap C5 Main detection points: Start eliminated eliminated eliminated Installation and Maintenance...
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Service Manual 4. Malfunction of Overcurrent Protection E5 Main detection points: Start eliminated eliminated eliminated speed is too low or fan doesn’t rotate eliminated model eliminated eliminated opened completely) eliminated Installation and Maintenance...
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Service Manual 5. Communication Malfunction E6 Start Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected. Connect the line Correct connection? according to Malfunction eliminated? wiring diagram. Main board matches Match correctly with display board? Main board of Malfunction eliminated?
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Service Manual 6. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: Start U8 is still displayed Installation and Maintenance...
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Service Manual 7. 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 Installation and Maintenance...
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Service Manual Outdoor Unit 1. Capacity charging malfunction (outdoor unit malfunction) (AP1 below means control board of outdoor unit) Main detection points: Turn on the unit and wait 1 minute Use AC voltmeter to measure the voltage on the two ends of electrolytic capacitor (see fig 30) Malfunction of...
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Service Manual 2. IPM protection(H5), desynchronizing malfunction(H7), overcurrent of compressor phase current (P5) (AP1 below means control board of outdoor unit) Main detection points: H5, H7 or P5 is displayed after turning on the unit Measure if the voltage The unit starts Repair power supply to make input is within 180~265V Restart the unit...
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Service Manual 3. High temperature and overload protection (E8)(AP1 below means control board of outdoor unit) Main detection points: E8 is displayed Normal protection, please If the outdoor Unit restarts use it after improving the ambient temperature is higher normally outdoor ambient temperature than 53℃? Improve the radiating environment...
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Service Manual 4. Start-up failure (LC) (AP1 below means control board of outdoor unit) Main detection points: Turn on the unit The stop time is not sufficient and If the stop time of compressor the high and low pressure of system is more than 3min? is not balanced , please start the unit after 3min...
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Service Manual 5. Overload and high discharge temperature malfunction Main detection points: Installation and Maintenance...
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Service Manual H3 or E4 is displayed 30min after power off the unit If the overload protector SAT is well connected? Under ambient temperature, test the resistance of overload protector with ohmmeter; resistance value should be<1000ohm Connect wire If the wiring terminal FA of electronic according to wiring expansion valve is well connected? diagram...
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Service Manual 6. PFC (correction for power factor) malfunction (outdoor unit malfunction) Main detection points: start If power plug is connected Is the malfunction Connect the plug correctly well with the socket eliminated? Check the connection wire between reactor mainboard and situation of connection Reconnect the wire or Power on and...
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Service Manual 7. Communication malfunction (E6) Main detection points: If the unit operates normally before malfunction Check the connection wire according to the wiring diagram. Check built-in wiring If the connection wire of indoor and outdoor is connected well? unit Reconnect the wire or Replace the If the wiring is...
Service Manual 9.3 Maintenance Method for Normal Malfunction 1. Air Conditioner Can't be Started Up connected well. Wrong wire connection between or poor connection for wiring terminals reliably correctly once improper Replace batteries for remote controller Repair or replace remote controller 2.
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Service Manual 4. ODU Fan Motor Can't Operate Connect wires according to wiring diagram to Wrong wire connection, or poor connection diagram damaged fan capacitor. is bad and ODU compressor generates a lot of 5. Compressor Can't Operate Connect wires according to wiring diagram to Wrong wire connection, or poor connection diagram...
Service Manual 11. Removal Procedure Caution: discharge the refrigerant completely before removal. 11.1 Removal Procedure of Indoor Unit Step Procedure Panel Location of step motor Installation and Maintenance...
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Service Manual Step Procedure Screws Display Panel panel. panel. Panel rotation Screw Screws Clasps Clasps Installation and Maintenance...
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Service Manual Step Procedure Cold plasma generator Screw Wiring terminal of motor mainboard. Note: Wiring terminal of step motor Installation and Maintenance...
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Service Manual Step Procedure 11.Electric box assy assy. Electric box assy Screw Screw Connection pipe clamp clamp. Screws Screws Connection pipe Screws Step motor Installation and Maintenance...
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Service Manual Step Procedure Motor clamp Screws Motor Screw Installation and Maintenance...
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Service Manual 11.2 Removal Procedure of Outdoor Unit 1. Before disassembly 2. Remove top cover Remove the screws connecting top cover, left and right side plate, as well as panel, to remove the top top cover cover. 3. Remove handle Remove the screws connecting handle and right side plate, to remove the handle.
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Service Manual 4. Remove panel and grille Remove the screws fixing panel, to remove the panel. Remove the screws connecting panel grille and panel, loosen the clamp, to remove the panel grille. panel grille 5. Remove valve cover Remove the screw fixing valve cover, to remove the cover.
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Service Manual 6. Remove left side plate Remove the screws fixing left side plate and condenser support board, to remove the left side plate. left side plate 7. Remove cross fan blade Remove the screw nut fixing cross fan blade, remove the gasket and spring cushion, to remove the cross fan blade.
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Service Manual 9. Remove electric box assy cover electric box Remove screws fixing electric box assy and mid-isolation board, loosen the bonding tie, pull off the wiring terminal, lift to remove the electric box assy. electric box assy 10. Remove electric reactor Remove the screws fixing electric reactor, to remove the electric reactor.
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Service Manual 12. Remove mid-isolation board Remove the screws connecting mid-isolation board, chassis and condenser assy, to remove the mid-isolation. mid-isolation board 13. Remove four-way valve assy four-way valve assy Welding cut the spot weld of four-way valve assy, compressor air suction/discharging valve and condenser pipe outlet, lift to remove the four-way valve assy.
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Service Manual 15. Remove big and small valve assy Remove screws connecting condenser assy and chassis, to remove the condenser assy. Remove the screws fixing big and small valve, to remove the valves. small valve big valve condenser assy Installation and Maintenance...
Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature display display display (°C) (°C) (°C) 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...
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Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr Pipe Shaper Downwards Union pipe Pipe Hard mold Note: Expander A(mm)
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Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor (15K) Temp( Temp( Temp( Temp( 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009 16.39 3.454 0.98 108.7 15.68 3.333...
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Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp( Temp( Temp( Temp( 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2 4.289 1.233 129.9 19.14 4.14 1.198...
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