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Summary of Contents for Johnson Controls JHKF09ZEEBXFORX
- Page 1 HIGH WALL INVERTER New Released Service Manual Form: MHKFEEBXFORX-20210419 High Wall Inverter 50Hz R-32 JHKF09/12/18/24ZEEBXFORX Issue Date Apr 19, 2021...
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Page 2: Table Of Contents
CONTENTS Part I : Technical Information ..................1 1. Summary ........................1 1-1 Appearance ............................ 1 1-2 Model List ............................2 2. Outline Dimension Diagram ................... 2 3. Function and Control ...................... 4 3-1 P-Style ............................. 4 4. Refrigerant System Diagram ..................10 4-1 Cooling &... -
Page 3: Part I : Technical Information
Part I : Technical Information 1. Summary 1-1 Appearance ➢ Indoor Unit ➢ Outdoor Unit 9/12K... -
Page 4: Model List
1-2 Model List MODEL JHKF09ZEEBXFORX JHKF12ZEEBXFORX JHKF18ZEEBXFORX JHKF24ZEEBXFORX 2. Outline Dimension Diagram The following data is for reference only and the actual size may vary. ➢ Indoor Unit Cooling Boundary Dimension Package Size capacity W× H× D (mm) W× H× D (mm) 750×... - Page 5 ➢ Outdoor Unit Boundary Dimension Base footing center size Package Size Platform W1(W2)× H× D(mm) A× B(mm) W× H× D(mm) 850×620×370 750× 285×200 540×280 1.3P 900× 310× 225 545×315 920×620×400 1.8P 1082× 330× 233 945× 725× 435 630×350 2.3P Note: 1.
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Page 6: Function And Control
3. Function and Control 3-1 P-Style 1) Remote Controller Introductions ◆ Read this "instructions" carefully so that you can use the air-conditioner safely and correctly. ◆ Take good care of the "instructions so that it can be referred to at any time. - Page 7 ➢ Buttons description The cooling only units don't have the function of heating or electric heating. When the remote controller turns to such function buttons the units wi1l not result such effect. *Please don't turn the remote controller to such ote: The picture is general remote controller contains almost all of the function buttons.
- Page 8 4. “iFeel” button When it displays "iFeel" button: Press this button can be used to set the feeling function. The LCD shows the actual room temperature when the function set and it shows the setting temperature when the function cancelled. This function is invalid when the appliance at the Fan mode. 5.
- Page 9 b. After setting "iClean" function, press "iClean" button again to cancel "iClean" function or press "ON/OFF" button to cancel "iClean" function and start A/C. c. The clean function will be stop working after 35 minutes running working without any operation. Note: "iClean"...
- Page 10 continuously press “Anti-FUNGUS” pushbutton for one time , the buzzer keep beeping three times again after five times beep indicating that this function has been cancelled; 3. When this function is on, it is suggested not to restart the A/C before it is completely stop;...
- Page 11 ★Automatic operation mode 1. Press the ON/OFF button, the air-conditioner starts to operate. 2. Press the MODE button, select the automatic operation mode. 3. Press the SPEED button, you can select fan speed. You can select fan speed from LOW, MID, HIGH, AUTO. 4.
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Page 12: Refrigerant System Diagram
4. Refrigerant System Diagram 4-1 Cooling & Heating ➢ Cooling Mode Indoor Unit Outdoor Unit ➢ Cooling Cycle Steam-gas of low pressure Indoor heat exchanger Compressor (Evaporation) (Compression) 4-way valve (Heat pump only) Liquid of low pressure Gas of high pressure (also a little gas) &... - Page 13 ➢ Heating Mode Indoor Unit Outdoor Unit ➢ Heating Cycle Gas of high pressure & temperature Indoor heat exchanger Compressor (Evaporation) (Compression) 4-way valve (Heat pump only) Super cooled liquid of low pressure Steam-gas of low pressure Super cooled liquid of high pressure Capillary Outdoor heat exchanger...
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Page 14: Part Ii : Installation And Maintenance
Part II : Installation and Maintenance 5. Main Tools for Installation and Maintenance... -
Page 15: Installation
6. Installation 6-1 Notes for Installation Important Notices ⚫ Before installation, please contact with local authorized maintenance center, if unit is not installed by the authorized maintenance center, the malfunction may not solved, due to discommodious contact. ⚫ The air conditioner must be installed by professionals according to the national wiring rules and this manual. -
Page 16: Installation Of Indoor Unit
⚫ The power cable enables communication between the indoor and outdoor units. You must first choose the right cable size before preparing it for connection. Grounding Requirements ⚫ The air conditioner is the type I electrical appliance and must ensure a reliable grounding. - Page 17 1. The wall for installation of the indoor unit shall be hard and firm, so as to prevent vibration. 2. Use the "+" type screw to fasten the peg board, horizontally mount the peg board on the wall, and ensure the lateral horizontal and longitudinal vertical. 3.
- Page 18 ➢ Drain pipe connection 1. Remove the mountings and pull the indoor unit pipe out of the housing. 2. Connect the connecting pipe to the indoor unit: Aim at the pipe center, tighten the Taper nut with fingers, and then tighten the T nut with a torque wrench, and the direction is shown in diagram on the right.
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Page 19: Installation Of Outdoor Unit
wiring diagram), and if there are signals connected to the plug, just conduct butt joint. ● Ground wire: Remove the grounding screw out of the electric bracket, cover the grounding wire end onto the grounding screw and screw it into the grounding hole. ●... - Page 20 ➢ Install the connection pipe Connect the Outdoor Unit with Connecting Pipe: Aim the counter-bore of the connecting pipe at the stop valve, and tighten the Taper nut with fingers. Then tighten the Taper nut with a torque wrench. ★When prolonging the piping, extra amount of refrigerant must be added so that the operation and performance of the air conditioner will not be compromised.
- Page 21 ➢ Wiring diagram Wiring Diagram NOTE: ※ This manual is usually includes the wiring mode for the different kind of A/C. We cannot exclude the possibility that some special type of wiring diagrams are not included. ※ The diagram are for reference only. If the entity is difference with this wiring diagram, please refer to the detailed wiring diagram adhered on the unit which you purchased.
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Page 22: Check After Installation And Test Operation
vacuum pumping method) Before working on the air conditioner, remove the cover of the stop valve(gas and liquid valves)and be sure to retighten it afterward.(to prevent the potential air leakage) 1. To prevent air leakage and spilling tighten all connecting nut of all flare tubes. 2. - Page 23 ④ Check that no foreign matter or tools are left inside the unit. ★ Leak test of the refrigerant Depending on the installation method, the following methods may be used to check for suspect leak, on areas such as the four connections of the outdoor unit and the cores of the cut-off valves and t-valves: ①...
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Page 24: Maintenance
7. Maintenance 7-1 Troubleshooting Guide Many error codes many appears on this air conditionor, and this troubleshooting guide is prepared for the maintenance personnel to detect the error position and the parts to be replaced during the troubleshooting process. In this Guide, the Troubleshooting Method is guided by the Error Name, and the Reference Code under the General Index is the error code of the internal unit of the mainstream model supplied by the Company. - Page 25 Indoor High Temperature Protection Anti-freezing Protection in Refrigeration Room Overcurrent Protection Function protection prompt of frequency See the Error List conversion external machine Troubleshooting Guide on Category-L Failures See the Error List (Subdivided Failures) Example: Cause: explain the principle of the specific error. Explanation Inspection path: The basic order of troubleshooting.
- Page 26 （1） E0- Overcurrent Protection of Indoor Unit Cause: The main control panel detects that the working current of the system exceeds the upper limit of protection, and will indicate "indoor unit overcurrent protectin:. The air conditioner stopps running for Explanation of protection and displays the failure code E0.
- Page 27 （2） E1- internal temperature sensor error Cause: The detection of short circuit or open circuit of internal temperature sensor during the inspection of main control panel in the Explanation of internal machine, indicated by “internal temperature sensor error”. error Inspection path: Sensor→Sensor wire→Connectors→Main internal control panel Tools required Multimeter, 15KΩ...
- Page 28 （3） E2 -external coil sensor error Cause: The detection of short circuit or open circuit of external coil sensor during the inspection of main external control panel, indicated Explanation of by “external coil sensor error”. error Inspection path: Sensor→Sensor wire→Connectors→Main external control panel Tools required Multimeter, 20KΩ...
- Page 29 （4） E3 -internal coil sensor error Cause: The detection of short circuit or open circuit of internal coil sensor during the inspection of main internal control panel, indicated Explanation of by “internal coil sensor error”. error Inspection path: Sensor→Sensor wire→Connectors→Main internal control panel Tools required Multimeter,, 5KΩ...
- Page 30 （5） E4 -Internal fan error of wall mounted air conditioner（PG motor） Cause: PG motor is equipped with speed feedback signal line. When the feedback signal of speed is not received by the main internal control panel, it has no way to recognize the rotating speed of motor, which will be indicated as “Internal fan error”.
- Page 31 (6) E4- Internal fan error of wall mounted air conditioner (DC motor) Cause: The internal fan of some highly energy efficient models is DC motor using a green plug through which the main internal control panel can drive the motor and sense the current rotational speed feedback. When the main internal control panel cannot receive the rotational speed feedback signal of the motor, it will indicate “DC motor error”.
- Page 32 (7) E5(5E) -Internal and external communication error Cause: The frequency converter needs internal and external communication.When the communication cannot be reached, the internal and external units will indicate “internal and external communication error”. Only “main internal control panel, connecting cable and main external control panel” are related to communication; but sometimes the communication error will be indicated when the external unit has no power and the internal unit cannot connect with the external unit due to other errors, then such situation shall be...
- Page 33 When the external unit not power on: If the internal terminal board does not transmit 220V power, replace the main internal control panel; if the external terminal board has 220V power, first check if (fuse, reactor and bridge rectifier) are normal. There is still something wrong, replace the whole set of external control unit;...
- Page 34 (8) Eb –Indoor EE Failure Cause: Many parameters need to be preset for the running of the indoor unit of the air conditioner and such parameters are placed in a data storage 8-feet chip, which is called "EEPROM" or "EE" for short. The motor on the internal main control panel can only work after reading the data stored in EE and if not read, the failure code "Outdoor EE Failure"...
- Page 35 (9) F0- External DC fan error (3-core terminal motor) Cause: Our frequency changing external unit uses the 3-lead-wire DC motor, or “externally driven DC motor” for short, after 2012. It has no speed feedback circuit but 3 drive lead wires and its driving principle is similar to that of the compressor.
- Page 36 (10) F1 -Module protection error Cause: The power module is the part to directly drive the compressor to work. It can protect the machine in time when overcurrent, overvoltage or overheat occurs and stops the compressor from working. It will, at the same time, send “shutdown request” to the Explanation of module panel.
- Page 37 1. Is the order of compressor wires not correct, which makes the compressor rotate reversely? Try exchanging the compressor wires on U-V phase to see if the problem can be solved? 2. Check if the supply voltage is unstable and highly volatile, and test if the system pressure is normal.
- Page 38 (11) F2- PFC protection error Cause: PFC board is a component of the inverter air conditioner for power factor correction and voltage boosting. When the PFC board cannot perform power calibration as normal because of overcurrent and Explanation of overvoltage, it will indicate “PFC protection error” and its function error may also be integrated with the module panel or main control panel.
- Page 39 (12) F3- Compressor out-of-step error Cause: The module panel will constantly test the current of lead wires of the compressor and calculate the position of the rotator of the compressor when driving the compressor to work. When the compressor deviates far from the normal operating status , it will indicate “compressor out-of-step error”...
- Page 40 For the “compressor out-of-step error” and “module protection error”, the former is calculated by the main chip of the module panel and the latter is detected by the power module itself. They are abnormal operating phenomenon of the compressor essentially. If there is Special attention uncertainty about either error, analyze both together with similar method.
- Page 41 Cause: The compressor top head sensor is a compressor top head temperature protection switch most of the time. It keeps closed (short circuit) when the compressor temperature is normal and switches off (open circuit) when the temperature is too high. The main external Explanation of control panel will indicate “compressor top head sensor error”...
- Page 42 （15） F6- external temperature sensor error Cause: The detection of short circuit or open circuit of external termperature sensor during the inspection of main external control Explanation of panel, indicated by "external termperature sensor error". error Inspection path: Sensor→Sensor wire→Connectors→Main external control panel Tools required Multimeter, 15KΩ...
- Page 43 （16） F7-OVP or UVP error Cause: All the inverter air conditioners are equipped with voltage inspection circuits, but differnt models of machines have differnt locations for the voltage inspection (on the modue panel or main external control panel). When the supply voltage is lower than 135V or higher than 275V, the inspectio circuit would detect over or under Explanation of voltage protection signal and send it to the main external control panel...
- Page 44 （exclusive of external machine of single panel） Cause: Only the models with the module panels separated with the main external control panels may have this error. When the machine is running normally, the module panel and the main external control panel would coordinate with each other on the communication to work and when the communication is off, the main external control panel Explanation of...
- Page 45 Inspection 1. Replace the main external control panel directly. procedure and key points （19） FA- recirculated sensor error (only models of electronic expansion valves are involved) Cause: The recirculated sensors are only used on machine models of electronic expanssion valves and the back temperature value is considered as the basis for adjustment of the electronic expanssion valve and determination if the four-way valve changes the position normally during heating.
- Page 46 Cause: In standby state or when the equipment is running, the high-voltage switch is disconnected three times (within 20 minutes) Explanation of and reported as "high-voltage switch protection"; error Inspection path: high-voltage switch cable → connector → high-voltage switch → main control panel Tools required Multimeter, connectoin line and high-voltage swtich for inspection...
- Page 47 (21) P3 –Liquid Deficiency Protection Cause: The liquid volume of the system is less than 30%, which leads to non-refrigeration and liquid shortage protection. Inspection path: whether the valves of the outdoor unit are opened → Explanation of whether the evaporator, condenser, connectoin pipe are damanged or error cracked →...
- Page 48 (22) P4 –Refrigeration Overload Protection Cause: Outdoor coil sensor senses excessive temperature, prevents compressor from overloading, and reduces frequency. Explanation of Inspection path: the system is dirty or blocked → the condenser is error dirty → external coil sensor is faulated →AC fan not running → failure of divider resistance of controller Tools required Multimeter and pressure gauge...
- Page 49 (23) P5–Exhaust Protection Cause: the exhaust sensor detects that the exhaust temperature is too high and triggers the exhaust protection shutdown. Explanation of Inspection path: system pressure → indoor / outdoor air inlet → error exhaust sensor → external panel Tools required Multimeter, pressure gauge, regular 50KΩ...
- Page 50 (24) P6–Indoor High Temperature Protection Cause: Protection shutdown due to temperature of indoor coil. Explanation of Inspection path: indoor air inlet → indoor unit filter → indoor fan error - indoor coil sensor Tools required Multimeter, pressure gauge, regular 20KΩ exhuast sensor (25℃) for inspection 1.
- Page 51 (25) P7–Anti-freezing Protection in Refrigeration Room Cause: Protection shutdown due to temperature of indoor coil. Explanation of Inspection path: indoor air inlet → indoor unit filter → indoor error f a n - indoor coil sensor Tools required Multimeter, pressure gauge, regular 20KΩ exhuast sensor (25℃) for inspection Frequent Indoor coil sensor...
- Page 52 (26) P8–Overcurrent Protection Cause: Controller detects AC bus current exceeding the set protection value, then limits and reduces the frequency. Explanation of Inspection path: system blockage → grid voltage→ outdoor unit error controller Tools required Multimeter, pressure gauge for inspection Frequent Grid voltage and outdoor unit controller problematic part...
- Page 53 （27）Function protection prompt of frequency conversion external machine Cause: In the regular running of the air conditioner, for some nonfaulted status, it may need the compressor to shut down or limit or lower the frequency so as to protect the normal operating of the entire cooling system (eg.
- Page 54 6. Over or under pressure protection: this protection is a pilot protection for the "over or under pressure error". When the power pressure is too high or too low but not so high or so low to reach limit for shutting down (within 165V-265V), it would limit and lower the frequency first to reduce the air conditioner's needs for the power to keep teh air conditioner running.
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Page 55: Display Error Code Of Outdoor Unit's Indicator Lights
7-2 Display error code of outdoor unit's indicator lights Display by the 3 LED indicator lights on the control panel of the outdoor unit: ○ for off; ● for on; ★ for flashing. Error Name Probable Trouble Location Normal (outdoor Normal, all three lights off for standby ○... - Page 56 sensor error Internal coil Internal coil sensor, main internal control ● ○ ★ sensor error panel. Mechanical jam of fan, internal fan, main ○ ● Indoor fan error ★ internal control panel. Refer to tooling display for other ○ ○ Entire set of external controller.
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Page 57: Troubleshooting For Normal Malfunction
7-3 Troubleshooting for Normal Malfunction ➢ The Foremost Inspecting Items ① The input voltage must be within +10% tolerance of the rated Voltage. If it is not the case, the air-conditioner will probably not work normally. ② Check the connecting cord between indoor unit and outdoor unit to see if it is properly connected. - Page 58 ➢ Fault Diagnosis by Symptom ①No Power Display (1) Items a) Check if the input voltage is correct? b) Check if the AC power supply connecting is correct? c) Check if the output voltage of the manostat L7805 (IC2) is correct? (2) Trouble shooting procedure...
- Page 59 ②The Indoor Fan Motor Does Not Work (1) Items a) Check if the indoor fan motor is connected correctly to the connector (CN8)? b) Check if the AC input voltage is correct? c) Check if the IC of indoor fan motor is connected correctly to the connector (CN2)? d) Check if the capacity of indoor fan motor is connected correctly to the connector (CN8)?
- Page 60 ③The Outdoor Unit Does Not Work (1) Items a) Check if the input voltage is correct? b) Check if the wire connection of the outdoor connecting terminal is correct? (2) Trouble shooting procedure...
- Page 61 ④The Step Motor Does Not Work (1) Items a) Check if the input voltage is correct? b) Check if the step motor controlling the up-down movement firmly connected to Cn2? (2) Trouble shooting procedure ⑤Heating Mode Can Work, But No Hot Air Blow...
- Page 62 (1) Check if the set temperature is lower than the indoor temperature? (2) Check if the indoor PCB is connected to the terminal correctly?
- Page 63 ⑥ Remote Control Can Not Work Trouble shooting procedure...
- Page 64 2021 Johnson Controls, Inc. www.johnsoncontrols.com Form: MHKFEEBXFORX-20210419 Johnson Controls reserve the right to change product features without prior notice.
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