Page 1 Manual No.'22・PAC-SM-422 SERVICE MANUAL INVERTER PACKAGED AIR-CONDITIONERS Wi-Fi model (Split system, air to air heat pump type) HYPER INVERTER WALL MOUNTED TYPE Single type SRK100VNXWZRF 100VSXWZRF MICRO INVERTER WALL MOUNTED TYPE Single type Twin type SRK100VNAWZRF SRK200VSAWPZRF 100VSAWZRF STANDARD INVERTER...
Page 2 '22 • PAC-SM-422 TABLE OF CONTENTS 1. HYPER INVERTER PACKAGED AIR-CONDITIONERS ........2 2. MICRO INVERTER PACKAGED AIR-CONDITIONERS ........151 3. STANDARD INVERTER PACKAGED AIR-CONDITIONERS ......185 4. WIRELESS LAN INTERFACE SETTING MANUAL ..........212 5. APPICATION OPERATION MANUAL ..............223...
Page 3 '22 • PAC-SM-422 1. HYPER INVERTER PACKAGED AIR-CONDITIONERS CONTENTS 1.1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ....1.1.1 Remote control ..................1.1.2 Operation control function by the wired remote control ....... 1.1.3 Operation control function by the indoor control ........10 (1) Unit ON/OFF button ..................
Page 4 '22 • PAC-SM-422 (7) Inverter checker for diagnosis of inverter output ........62 (8) Outdoor unit control failure diagnosis circuit diagram ....... 64 1.2.2 Troubleshooting flow ................70 (1) List of troubles................... 70 (2) Troubleshooting ..................73 1.3 ELECTRICAL WIRING ..................147 (1) Indoor unit ....................147 (2) Outdoor units ....................148 1.4 PIPING SYSTEM .....................150...
Page 5 '16 • PAC-T-251 '22 • PAC-SM-422 1.10 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 1.1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 1.10.1 Remote control 1.1.1 Remote control Wired remote control (1) Wired remote control (Option parts) Model RC-EX3A Model RC-EX3A ⑤ LCD (with backlight) ③...
Page 6 '22 • PAC-SM-422 Wired remote control Model RC-E5 Model RC-E5 The figure below shows the remote control with the cover opened. Note that all the items that may be displayed in the liquid crystal display area are shown in the figure for the sake of explanation. Characters displayed with dots in the liquid crystal display area are abbreviated.
Page 7 '22 • PAC-SM-422 (2) Wireless remote control Transmission section Operation section ON/OFF (luminous) button Press to start operation, press again to stop. OPERATION MODE select button Each time the button is pressed, the FAN SPEED button mode changes. Each time the button is pressed, the fan speed changes.
Page 8 '16 • PAC-T-251 '22 • PAC-SM-422 1.10.2 Operation control function by the wired remote control 1.1.2 Operation control function by the wired remote control ● Model RC-EX3A ●Model RC-EX3A (1) Switching sequence of the operation mode switches of remote control (1) Switching sequence of the operation mode switches of remote control (a) Tap the change operation mode button on the TOP screen.
Page 9 '22 • PAC-SM-422 ●Content memorized with the power failure compensation are as follows. Note(1) Items (f) and (g) are memorized regardless whether the power failure compensation is effective or not while the setting of silent mode is cancelled regardless whether the power failure compensation is effective or not. At power failure –...
Page 10 '22 • PAC-SM-422 ● Model RC-E5 (1) Switching sequence of the operation mode switches of remote control COOL HEAT AUTO (2) CPU reset This functions when “CHECK” and “ESP” buttons on the remote control are pressed simultaneously. Operation is same as that of the power source reset.
Page 11 '22 • PAC-SM-422 '09•SRK-DB-087D '09•SRK-DB-087D 1.1.3 Operation control function by the indoor control (1) Unit ON/OFF button (1) Unit ON/OFF button (1) Unit ON/OFF button (a) Operation (a) Operation (a) Operation (b) Details of operation (b) Details of operation (b) Details of operation room room whether to go into the COOL or HEAT mode.
Page 12 '22 • PAC-SM-422 (3) Auto swing control Note Even if ［ Auto Swing ］ is selected, the louver position with anti draft function is fixed to position 1. (a) RC-EX3A Louver control To operate the swing louver when the air-conditioner is operating, press the “Direction” button on the TOP screen of remote control. The wind direction select screen will be displayed. To swing the louver, touch the “Auto swing” button. The lover will move up and down. To fix the swing louver at a position, touch one of [1] - [4] buttons.
Page 13 '22 • PAC-SM-422 (4) Timer operation (a) RC-EX3A (i) Sleep timer Set the time from the start to stop of operation. The time can be selected in the range from 30 to 240 minutes (in the unit of 10-minute). Note (1) Enable the “Sleep timer” setting from the remote control. If the setting is enabled, the timer operates at every time. (ii) Set OFF timer by hour Set the time to stop the unit after operation, in the range from 1 to 12 hours (in the unit of hour).
Page 14 '22 • PAC-SM-422 (5) Wireless LAN connection function (a) Operating conditions When a signal of wireless LAN connection setting was received from a remote control during all air-conditioners stop (b) Detail of operation (i) A signal which corresponds to the signal received from a remote control is sent to air-conditioner. (ii) A buzzer for confirmation of receipt rings.
Page 15 '22 • PAC-SM-422 Outdoor unit Signal wiring between outdoor unit Refrigerant piping and indoor units Indoor unit (Master unit) (Slave unit 1) Connection cable Interfase kit (Master) (Slave 1) * 1:In case of SRK single use. Remote control wiring * 2:In case of SRK twin use. Remote control (2) Unit No.
Page 16 '22 • PAC-SM-422 (b) Operation mode is changes when keep cooling and heating thermostat off 20 minutes and be satisfied following conditions. If the setting temperature is changed with the remote control, the operation mode is judged immediately. Cooling Keep operation mode SP: Setting temperature Heating...
Page 17 '22 • PAC-SM-422 (ii) Contents of operation Air capacity control Model SRK100ZR-W Item Upper limit of command compressor speed Range A: As per following table, Range B: 40 rps Note Ranges A and B are as shown below. ● Condition for range A Command compressor speed is controlled according to the indoor Range B unit heat exchanger temperature (Th2) and the indoor unit room air...
Page 18 '22 • PAC-SM-422 1.1.4 Operation control function by the outdoor control (1) Determination of compressor speed Required compressor speed Cooling/dehumidifying operation Unit: rps Model FDC100 Usual operation Max. required Silent mode, outdoor air temperature ≦ 15°C compressor speed Silent mode II ( When SW4-1 ON ) Min. required compressor speed (b) Heating operation Unit: rps...
Page 19 '22 • PAC-SM-422 (2) Compressor start control Compressor starts upon receipt of the thermostat ON signal from the indoor unit. (b) However, at initial start after turning the power source breaker, it may enter the standby state for maximum 30 minutes (“ PREPARATION” is displayed on the remote control) in order to prevent the oil loss in the compressor. If the cooling/dehumidifying/heating operation is selected from the remote control when the outdoor unit is in the standby state, “...
Page 20 '22 • PAC-SM-422 (4) Outdoor fan control (a) Outdoor fan tap and fan motor speed Unit: min Model Mode Fan motor tap speed speed speed speed speed speed speed ① ② ③ ④ ⑤ ⑥ ⑦ FDC100 Cooling/Dehumidifying Heating (b) Fan tap control during cooling/defumidifying operation Fan taps are selected depending on the outdoor heat exchanger temperature (Tho-R1, R2) and the outdoor air temperature (Tho-A).
Page 21 '22 • PAC-SM-422 (e) Outdoor fan control by the power transistor radiator fin temperature When all the following conditions are established later than 3 minutes after the start of compressor, the following control is implemented. Cooling/dehumidifying 1) Outdoor air temperature (Tho-A) 33°C 2) Actual compressor speed A rps 3) Power transistor radiator fin temperature C °C (ii) Heating...
Page 22 '22 • PAC-SM-422 (5) Defrost operation Model FDC100 (a) Starting conditions If all of the following defrost conditions A or conditions B are satisfied, the defrost operation starts. Defrost conditions A Accumulative compressor operation time after the end of defrost operation has elapsed 37 minutes, and the accumulative compressor operation time after the Defrost operation start start of heating operation (remote control ON) has...
Page 23 '22 • PAC-SM-422 (c) Switching of defrost control with SW3-1 If SW3-1 on the outdoor control PCB is turned to ON, it becomes easier to enter the defrost operation. Use this when installing a unit at snowing regions. (ii) Control contents It allows entering the defrost operation under the defrost condition A when the cumulative heating operation time becomes 30 minutes.
Page 24 '22 • PAC-SM-422 (c) Heating high pressure protection Protective control 1) As the indoor heat exchanger temperature (Th2) exceeds the setting value, the compressor speed is controlled to suppress the rise of high pressure. Control value A is updated to an optimum value automatically according to the operating conditions. Existing piping adaptation switch: SW5-1 Reduces compressor speed Model OFF (Shipping) at every 60 seconds.
Page 25 '22 • PAC-SM-422 Over-current protection current safe controls I, II Detecting the outdoor inverter input (primary) current and the output (secondary) current, if the current values exceed setting values, the compressor speed is controlled to protect the inverter. Reduces compressor speed Cooling Heating at each minute. Model Control Reset Control Reset Retention value A value B value A value B Primary...
Page 26 '22 • PAC-SM-422 ( k ) Dewing prevention control [Control condition] During cooling and dehumidifying operation, if all the following conditions are established, the compressor speed is reduced to prevent dewing and water splash. (i) Cooling electronic expansion valve aperture (EEVC) is 500 pulses. (ii) Suction overheat is 10°C or higher. (iii) Compressor speed is A rps or higher.
Page 27 '22 • PAC-SM-422 (7) Silent mode As “Silent mode start” signal is received from the remote control, it operates by dropping the outdoor fan speed and the compressor speed. (b) For details, refer to items (1) and (4) above. (8) Test run It is possible to operate from the outdoor unit using the DIP switch on the outdoor unit control PCB.
Page 28 '22 • PAC-SM-422 (10) Base heater ON/OFF output control (Option) (a) Base heater ON conditions When all of following conditions are satisfied, the base heater is turned ON. ・ Outdoor air temperature (detected with Tho-A) is 1ºC or lower. ・ In the heating mode ・ When the compressor is turned ON ・ JSW1-4 is OFF. (b) Base heater OFF conditions When either one of following conditions is satisfied, the base heater is turned OFF.
Page 29 '22 • PAC-SM-422 1.2 MAINTENANCE DATA 1.2.1 Diagnosing of microcomputer circuit (1) Selfdiagnosis function (a) Check indicator table Whether a failure exists or not on the indoor unit and outdoor unit can be know by the contents of remote control error code, indoor/outdoor unit green LED (power pilot lamp and microcomputer normality pilot lamp) or red LED (check pilot lamp). Note SRK series only. At the indoor unit side, errors are displayed with the combination of RUN light and TIMER light on the display panel.
Page 30 '22 • PAC-SM-422 (ii) Outdoor unit 　1) FDC100VNX-W,100VSX-W FCD100VNA-W,100VSA-W Remote control Indoor unit display Outdoor unit control PCB Outdoor inventer PCB Reference Location of trouble Description of trouble Repair method page TIMER Error code Red LED RUN light Red LED Green LED Yellow LED light Installation or operating...
Page 31 '22 • PAC-SM-422 2) FDC200VSA-W Remote control Indoor unit display Outdoor unit control PCB Outdoor inventer PCB Reference Location of trouble Description of trouble Repair method page TIMER Error code Red LED RUN light Red LED Green LED Yellow LED light Installation or operating •...
Page 32 Reference Location of trouble Description of trouble Repair method page TIMER Error code Red LED RUN light Red LED Green LED Yellow LED light Installation or operating • Higher outdoor heat exchanger temperature Repair condition '22 • PAC-SM-422 Keeps Keeps Outdoor heat exchanger Replacement of 1-time flash...
Page 33 '22 • PAC-SM-422 (iv) Display sequence of error codes or inspection indicator lamps ■ Occurrence of one kind of error Displays are shown respectively according to errors. ■ Occurrence of plural kinds of error Section Category of display Error code on remote •...
Page 34 '22 • PAC-SM-422 ■ Error log and reset Error indicator Memorized error log Reset • Stop the unit by pressing the ON/OFF Remote control display • Higher priority error is memorized. switch of remote control. • If the unit has recovered from anomaly, it Red LED on outdoor unit control PCB •...
Page 35 '22 • PAC-SM-422 (a) Cautions (3) Troubleshooting at the indoor unit 1) If you are disassembling and checking an air conditioner, be sure to turn off the power before beginning. (i) Cautions When working on indoor units, let the unit sit for about 1 minute after turning off the power before you begin work. 1) If you are disassembling and checking an air- conditioner, be sure to turn off the power before beginning.
Page 36 '09•SRK-DB-087D '22 • PAC-SM-422 (iv) Inspection procedures corresponding to detail of trouble Sensor error Broken sensor wire, connector poor connection Sensor temperature characteristics (Room air temperature, indoor heat exchanger temperature) - 10 Temperature (˚C) Indoor fan motor error Defective fan motor, connector poor connection, defective indoor unit PCB unit unit...
Page 37 '22 • PAC-SM-422 Error of signal transmission Wiring error including power cable, defective indoor/ outdoor unit PCB ② ③ unit ② ③ unit ① ② unit...
Page 38 '22 • PAC-SM-422 (v) Phenomenon observed after short-circuit, wire breakage on sensor Phenomenon Operation Sensor mode Short-circuit Disconnected wire Cooling Room air temperature sensor Heating Freezing cycle system protection trips and stops the compressor. Cooling Heat exchanger temperature sensor Heating Cooling Humidity sensor Heating...
Page 39 Replace indoor unit PCB. blocks ② and ③ oscillating between DC 0 and 20V? '22 • PAC-SM-422 Indoor electrical components are normal. 2) Indoor fan motor check procedure a) Indoor unit PCB output check iii) ① ④ ⑤ DC several V (–) DC 308-336V (4-6 V)
Page 40 '22 • PAC-SM-422 (4) Troubleshooting at the outdoor unit When troubleshooting the outdoor unit, firstly assess the overview of malfunction and try to presume the cause and the faulty part by checking the error code dispalyed on the remote control and flashing pattern of indicator lamps (Red LED and Green LED), and then proceed further inspection and remedy it. Self-diagnosis system by microcomputor on indoor unit and outdoor unit PCB can assist to find the cause of malfunction smoothly by making a diagnosis of not only the anomaly of microcomputer, but also the anomaly in power source system, installation space, overload resulting from improper charging amount of refrigerant and etc.
Page 41 '22 • PAC-SM-422 PCA012D043 Models FDC100VNX-W PCA012D043 Model FDC100VSX-W Replace the PCB after elapsing 3 minutes from power OFF. (Be sure to measure voltage (DC) on both capacitor terminals located in control back, and check that the voltage is discharged sufficiently.) Disconnect the connectors from the control PCB.
Page 42 '22 • PAC-SM-422 (ii) Model FDC100VNA-W PCA012D083 1) Disassembly a) After the breaker is shut down, remove the service panel, top panel and rear panel. (Refer to Fig.1). b) Don't touch the main PCB until three minutes have passed after the breaker is shut doun. (After having shut down the breaker, some capacitor is held by high voltage.
Page 43 '22 • PAC-SM-422 LED2(Red) LED1(Green)
Page 44 '22 • PAC-SM-422 2) Exchange a) Match the setting of new main PCB switches (JSW1, SW3-7) with former main PCB. (Refer to Fig.4) b) Tum over the separator of new heat conduction sheet and paste the heat conduction sheet on the aluminum block.
Page 45 '22 • PAC-SM-422...
Page 46 '22 • PAC-SM-422 (iii) Model FDC100VSA-W PCA012D084 1) Disassembly a) After the breaker is shut down, remove the service panel, top panel and rear panel. (Refer to Fig.1). b) Don't touch the main PCB until three minutes have passed after the breaker is shut doun. (After having shut down the breaker, some capacitor is held by high voltage.
Page 47 '22 • PAC-SM-422 LED2(Red) LED1(Green)
Page 48 '22 • PAC-SM-422 2) Exchange a) Match the setting of new main PCB switches (JSW1, SW3-7) with former main PCB. (Refer to Fig.4) b) Tum over the separator of new heat conduction sheet and paste the heat conduction sheet on the aluminum block. (Refer to Fig.5) 3) Installation a) Install the new main PCB on the control and tighten the screw as shown in Fig.6.
Page 49 '22 • PAC-SM-422...
Page 50 '22 • PAC-SM-422 (iv) Model FDC200VSA-W PCA012D110 Exchange the control PCB according to the following procedure. 1. Exchange the PCB after elapsing 3 minutes from power OFF. 2. Measurement was done on both ends of connector (CNA1) during measurement, the voltage (DC) might charged the electrolytic capacitor, be sure that the voltage is discharged sufficiently (10V of less).
Page 51 '22 • PAC-SM-422 (c) Outdoor inverter PCB replacement procedure (c) Outdoor inverter PCB replacement procedure Precautions for Safety Precautions for Safety • Since the following precaution is the important contents for safety, be sure to observe them. • Since the following precaution is the important contents for safety, be sure to observe them. WARNING and CAUTION are described as follows: WARNING and CAUTION are described as follows: WARNING...
Page 52 '22 • PAC-SM-422 PCA012D025F (ii) Model FDC100VSX-W Replace the PCB after elapsing 3 minutes from power OFF. (Be sure to measure voltage (DC) on both capacitor terminals located in control back, and check that the voltage is discharged sufficiently.(Refer to Fig.1.)) Take off the connection of inverter PCB terminal block connector and remove the screw of power transistor then remove the PCB. Wipe off the silicon grease neatly on the control’s radiation heat fins.
Page 53 '22 • PAC-SM-422 PCB012D057A (V) Model FDC250VSA (iii) Model FDC200VSA-W Replace the inverter PCB (Fig.1) according to the following procedure. 1) Replace the PCB after elapsing 3 minutes from power OFF. In the situation that harnesses are connected to control PCB, be sure to measure voltage (DC) of two places ((A), (B)) and check that the voltage is discharged sufficiently.
Page 54 '22 • PAC-SM-422 ※：Presence and shape of electric component may vary according to a model. Remove screws. (4 places) (C) Voltage measurement point of power source for inverter : DM (+) – DM (–) Inverter PCB Snubber capacitor Control PCB Remove harnesses from bands.
Page 55 '22 • PAC-SM-422 DIP switch setting list (Outdoor unit) Models FDC100VNX-W, 100VSX-W DIP switch setting list (Outdoor unit) (1) Control PCB Models FDC100VNX-W, 100VSX-W (1) Control PCB (1) Control PCB Description Default setting Switch Remark Pump down operation Normal*/Pump down Normal JSW 1-1 JSW 1-2...
Page 56 '22 • PAC-SM-422 ● DIP switch setting list (Outdoor unit)
Page 57 '22 • PAC-SM-422 ● DIP switch setting list (Outdoor unit)
Page 58 '22 • PAC-SM-422 (5) Check of anomalous operation data with the remote control (a) In case of RC-EX3A remote control [Operating procedure] ➀ On the TOP screen, touch the buttons in the order of “Menu” ➝ “Service setting” ➝ “Service & Maintenance” ➝ “Service password”...
Page 59 '22 • PAC-SM-422 Models FDC100VNA-W, 100VSA-W Number 33 details of compressor protection status Reference page Contents of display Notes(1) Operation data display on the remote control. "0" Normal Data is dispalyed until canceling the protection control. In case of multiple protections controlled, only the younger No. is displayed. "1"...
Page 60 '22 • PAC-SM-422 (b) In case of RC-E5 remote control Number Data Item Operation data can be checked with remote control unit operation. (Operation Mode) (Set Temperature) ➀ Press the button. (Return Air Temperature) The display change “ ” (Remote Control Temperature Sensor) ➁...
Page 61 '22 • PAC-SM-422 (6) Power transistor module (Including the driver PCB) inspection procedure Is the power transistor module cracked or burnt? Is there a short circuit between the power transistor module ∗ terminals? Compressor operation Is there any difference in the compressor current If there is a 10% or greater difference between phases?
Page 62 '22 • PAC-SM-422 Model FDC200VSA-W Tester Normal value (W) Terminal Terminal Model FDC200 Scores of M Approx. 8.9M Scores of M Approx. 4.6M Approx. 4.8M Scores of M If the measured values range from 0 - several kW, there is a possibility that the elements are damaged, so replace the power transistor parts. Model FDC100VNP-W Tester Normal value (W)
Page 63 '22 • PAC-SM-422 (7) Inverter checker for diagnosis of inverter output Models FDC100VNX-W,100VSX-W FDC100VNA-W,100VSA-W, 200VSA-W 　●Checking method (i) Setup procedure of checker. 1) Power OFF (Turn off the breaker). 2) Remove the terminal cover of compressor and disconnect the wires (U, V, W) from compressor. 3) Connect the wires U (Red) , V (White) and W (Black) of checker to the terminal of disconnected wires (U, V, W) from compressor respectively.
Page 64 '22 • PAC-SM-422 Model FDC100VNP-W (c) Models FDC71, 90VNP ● Checking method (i) Setup procedure of checker. 1) Power OFF (Turn off the breaker). 2) Remove the terminal cover of compressor and disconnect the wires (U, V, W) from compressor. 3) Connect the wires U (Red) , V (White) and W (Black) of checker to the terminal of disconnected wires (U, V, W) from compressor respectively.
Page 65 '22 • PAC-SM-422 (8) Outdoor unit control failure diagnosis circuit diagram Model FDC100VNX-W t° t° t° t° t° t°...
Page 66 '22 • PAC-SM-422 Model FDC100VSX-W t° t° t° t° t° t°...
Page 67 '22 • PAC-SM-422 Model FDC100VNA-W...
Page 68 '22 • PAC-SM-422 Model FDC100VSA-W...
Page 69 '22 • PAC-SM-422 Model FDC200VSA-W...
Page 70 '22 • PAC-SM-422 Model FDC100VNP-W...
Page 71 '22 • PAC-SM-422 1.2.2 Troubleshooting flow (1) List of troubles (a) Models FDC100VNX-W,100VSX-W FDC100VNA-W,100VSA-W Remote control display Description of trouble Reference page None Operates but does not cool. None Operates but does not heat. None Earth leakage breaker activated None Excessive noise/vibration (1/3) None Excessive noise/vibration (2/3)
Page 72 '22 • PAC-SM-422 (b) Model FDC200VSA-W Remote control display Description of trouble Reference page None Operates but does not cool. None Operates but does not heat. None Earth leakage breaker activated None Excessive noise/vibration (1/3) None Excessive noise/vibration (2/3) None Excessive noise/vibration (3/3) None Louver motor failure None Power source system error (Power source to indoor unit control PCB) None...
Page 73 '22 • PAC-SM-422 (c) Model FDC100VNP-W Remote control display Description of trouble Reference page None Operates but does not cool. None Operates but does not heat. None Earth leakage breaker activated None Excessive noise/vibration (1/3) None Excessive noise/vibration (2/3) None Excessive noise/vibration (3/3) None Louver motor failure None Power source system error (Power source to indoor unit control PCB) None...
Page 74 '22 • PAC-SM-422 (2) Troubleshooting RUN light TIMER light Indoor Content Error code display – – Operates but does not cool. None Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure...
Page 75 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display – – Operates but does not heat. None Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Check the indoor unit fan operation.
Page 76 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display – – Earth leakage breaker activated None Remote control: Green LED Red LED Outdoor unit control PCB Stays OFF Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Are OK the...
Page 77 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display – – Excessive noise/vibration (1/3) None Remote control: Green LED Red LED Outdoor unit control PCB – – 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure If excessive noise/vibration persists when sufficient Does time has elapsed after noise/vibration stopping the unit, it is...
Page 78 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display – – Excessive noise/vibration (2/3) None Remote control: Green LED Red LED Outdoor unit control PCB – – 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure From previous page Rearrange the piping to Are the pipes avoid contact with the...
Page 79 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display – – Excessive noise/vibration (3/3) None Remote control: Green LED Red LED Outdoor unit control PCB – – 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure From previous page If insufficient cooling/ [Adjustment heating problem happens...
Page 80 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display – – Louver motor failure None Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure L Check at the indoor unit side.
Page 81 '22 • PAC-SM-422 RUN light TIMER light Indoor Power source system error Content Error code display – – None Remote control: (Power source to indoor unit control PCB) Green LED Red LED Outdoor unit control PCB Stays OFF 2-time flash 5. Troubleshooting 1.
Page 82 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code Power source system error display – – None (Power source to remote control) Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure...
Page 83 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display – – INSPECT I/U INSPECT I/U Remote control: Green LED Red LED Outdoor unit (When 1 or 2 remote controls are connected) control PCB Keeps flashing 2-time flash 5. Troubleshooting 1.
Page 84 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display – – INSPECT I/U INSPECT I/U Remote control: Green LED Red LED Outdoor unit (Connection of 3 units or more remote controls) control PCB Keeps flashing 2-time flash 5. Troubleshooting 1.
Page 85 '22 • PAC-SM-422 Communication error at RUN light TIMER light Indoor Content Error code display – – initial operation (1/3) Remote control: WAIT Green LED Red LED Outdoor unit (Models FDC100VN(S)X-W,100VN(S)A-W only) control PCB Keeps flashing 2-time flash 5. Troubleshooting 1. Applicable model Models FDC100VN(S)X-W, Diagnosis Countermeasure...
Page 86 '22 • PAC-SM-422 Communication error at RUN light TIMER light Indoor Content Error code display – – initial operation (2/3) Remote control: WAIT Green LED Red LED Outdoor unit (Models FDC100VN(S)X-W,100VN(S)A-W only) control PCB Keeps flashing 2-time flash 5. Troubleshooting 1. Applicable model Models FDC100VN(S)X-W, Diagnosis Countermeasure...
Page 87 '22 • PAC-SM-422 Communication error at RUN light TIMER light Indoor Content Error code display – – initial operation (3/3) Remote control: WAIT Green LED Red LED Outdoor unit (Models FDC100VN(S)X-W,100VN(S)A-W only) control PCB Keeps flashing 2-time flash 5. Troubleshooting 1. Applicable model Models FDC100VN(S)X-W, Diagnosis Countermeasure...
Page 88 '22 • PAC-SM-422 Communication error at RUN light TIMER light Indoor Content Error code display – – initial operation (1/2) Remote control: WAIT Green LED Red LED Outdoor unit (Model FDC200VSA-W only) control PCB Keeps flashing 2-time flash 5. Troubleshooting 1. Applicable model Model FDC200VSA-W Diagnosis Countermeasure...
Page 89 '22 • PAC-SM-422 Communication error at RUN light TIMER light Indoor Content Error code display – – initial operation (2/2) Remote control: WAIT Green LED Red LED Outdoor unit (Model FDC200VSA-W only) control PCB Keeps flashing 2-time flash 5. Troubleshooting 1. Applicable model Model FDC200VSA-W Diagnosis Countermeasure...
Page 90 '22 • PAC-SM-422 Communication error at RUN light TIMER light Error code Content Indoor initial operation (1/3) Remote control: WAIT display – – (Model FDC100VNP-W only) 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure When the remote control LCD displays “...
Page 91 '22 • PAC-SM-422 Communication error at RUN light TIMER light Error code Content Indoor initial operation (2/3) Remote control: WAIT display – – (Model FDC100VNP-W only) 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure When the fuse is blown, the method to inspect outdoor unit PCB before replacing the power From previous page...
Page 92 '22 • PAC-SM-422 Communication error at RUN light TIMER light Error code Content Indoor initial operation (3/3) Remote control: WAIT display – – (Model FDC100VNP-W only) 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure When the remote control display is extinguished after the Remote control display is power on.
Page 93 '22 • PAC-SM-422 No display RUN light TIMER light Indoor Content Error code display – – (Models FDC100VN(S)X-W, None Remote control: Green LED Red LED Outdoor unit 100VN(S)A-W, 200VSA-W only) control PCB Stays OFF Stays OFF 5. Troubleshooting 1. Applicable model Models FDC100VN(S)X-W, Diagnosis Countermeasure...
Page 94 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display – – Remote control Remote control: Green LED Red LED Outdoor unit communication circuit error control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is it possible to...
Page 95 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display 6-time flash Communication error during operation Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing See below 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure In case that the outdoor unit red LED flashes 2-times Note Inspect faulty connections (disconnection,...
Page 96 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code Indoor heat exchanger display 1(3)-time flash None Remote control: Green LED Red LED temperature sensor anomaly Outdoor unit control PCB Keeps flashing Stays OFF Note(1) Value in ( ) are the Th2 5.
Page 97 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code Room air temperature display 2-time flash None Remote control: Green LED Red LED sensor anomaly Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the...
Page 98 '22 • PAC-SM-422 RUN light TIMER light Excessive number of connected Indoor Content Error code display – – indoor units (more than 17 units) Remote control: Green LED Red LED Outdoor unit by controlling with one remote control control PCB Keeps flashing Stays OFF 5.
Page 99 '22 • PAC-SM-422 Address setting error of RUN light TIMER light Indoor Content Error code display – – indoor units Remote control: Green LED Red LED Outdoor unit (Models FDC100 only) control PCB Keeps flashing stays OFF 5. Troubleshooting 1. Applicable model Models FDC100 Diagnosis Countermeasure...
Page 100 '22 • PAC-SM-422 Communication error RUN light TIMER light Indoor Content Error code display – – between master and slave indoor units Remote control: Green LED Red LED Outdoor unit (Model FDC200VSA-W only) control PCB Keeps flashing Stays OFF 5. Troubleshooting 1.
Page 101 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code display 6-time flash Remote control: Indoor fan motor anomaly Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Does any foreign material...
Page 102 '22 • PAC-SM-422 RUN light TIMER light Indoor Content Error code Remote control display – – Remote control: temperature sensor anomaly Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the remote...
Page 103 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content Cooling overload operation Keeps flashing Remote control: Green LED Red LED Outdoor unit (Models FDC100VN(S)X-W,100VN(S)A-W, Keeps flashing 1-time flash control PCB 200VSA-W only) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 104 '22 • PAC-SM-422 RUN light TIMER light Content Cooling overload operation Error code Indoor Remote control: (Model FDC100VNP-W only) display Keeps flashing 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure * For the characteristics of outdoor heat exchanger temperature sensor, refer to E37.
Page 105 '22 • PAC-SM-422 RUN light TIMER light Discharge pipe Error code Indoor display Content 5-time flash Remote control: temperature error Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB (Models FDC100 only) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 106 '22 • PAC-SM-422 RUN light TIMER light Indoor display Discharge pipe Error code Content 5-time flash Green LED Red LED Outdoor unit Remote control: temperature error control PCB Keeps flashing 1-time flash (Model FDC200VSA-W only) Yellow LED Outdoor unit inverter PCB Keeps flashing 5.
Page 107 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content Keeps flashing 2-time flash Remote control: Outdoor heat exchanger Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB temperature sensor anomaly Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 108 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content Keeps flashing 1-time flash Remote control: Outdoor air temperature Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB sensor anomaly Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 109 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content Keeps flashing 4-time flash Remote control: Discharge pipe Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB temperature sensor anomaly Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 110 '22 • PAC-SM-422 RUN light TIMER light High pressure error Error code Indoor display Content – – Remote control: (63H1 activated) Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB (Models FDC100VN(S)X-W, 100VN(S)A-W only) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 111 '22 • PAC-SM-422 RUN light TIMER light High pressure error Error code Indoor display Content – – Remote control: (63H1 activated) Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB (Model FDC200VSA-W only) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 112 '22 • PAC-SM-422 Service valve (gas side) RUN light TIMER light Content Error code closing operation Indoor Remote control: display 7-time 1-time (Model FDC100VNP-W only) flash flash 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure Are the Open the service valve. service valve (gas side) opened? 2.
Page 113 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content – – Remote control: 　　 Power transistor overheat Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB 　　 (Models FDC100VN(S)X-W only) Yellow LED Outdoor unit 6-time flash inverter PCB 5.
Page 114 '22 • PAC-SM-422 RUN light TIMER light Indoor display Error code Content – – Green LED Red LED Outdoor unit Remote control: Power transistor overheat control PCB Keeps flashing 1-time flash (Model FDC200VSA-W only) Yellow LED Outdoor unit inverter PCB 8-time flash 5.
Page 115 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content 1-time flash Current cut (1/2) Remote control: Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB (Models FDC100 only) Yellow LED Outdoor unit 1-time flash inverter PCB 5.
Page 116 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content 1-time flash Current cut (2/2) Remote control: Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB (Models FDC100 only) Yellow LED Outdoor unit 1-time flash inverter PCB 5.
Page 117 '22 • PAC-SM-422 RUN light TIMER light Indoor display Error code Content 1-time flash Current cut (1/2) Green LED Red LED Outdoor unit Remote control: control PCB Keeps flashing 1-time flash Yellow LED (Model FDC200VSA-W only) Outdoor unit inverter PCB 9-time flash 5.
Page 118 '22 • PAC-SM-422 RUN light TIMER light Indoor display Error code Content 1-time flash Current cut (2/2) Green LED Red LED Outdoor unit Remote control: control PCB Keeps flashing 1-time flash Yellow LED (Model FDC200VSA-W only) Outdoor unit inverter PCB 9-time flash 5.
Page 119 '22 • PAC-SM-422 RUN light TIMER light Liquid back error Error code Indoor display Content – – Remote control: (Cooling mode) Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB (Model FDC200VSA-W only) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 120 '22 • PAC-SM-422 RUN light TIMER light Liquid back error Error code Indoor display Content – – Remote control: (Heating mode) Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB (Model FDC200VSA-W only) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 121 '22 • PAC-SM-422 RUN light TIMER light Communication error between Error code Indoor display Content – – Remote control: Green LED Red LED Outdoor unit inverter PCB and outdoor unit control PCB Keeps flashing 1-time flash control PCB (Models FDC100VN(S)X-W only) Yellow LED Outdoor unit Keeps flashing...
Page 122 '22 • PAC-SM-422 RUN light TIMER light Communication error between Error code Indoor display Content – – Remote control: inverter PCB and outdoor unit control PCB Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB (Model FDC200VSA-W only) Yellow LED Outdoor unit Keeps flashing...
Page 123 '22 • PAC-SM-422 RUN light TIMER light Content Error code Indoor display 5-time flash Remote control: E47 PCB A/F module anomaly Red LED Green LED Outdoor unit (Model FDC100VNA-W only) control PCB Keeps flashing 1-time flash 5. Troubleshooting 1. Applicable model Model FDC100VNA-W Diagnosis Countermeasure...
Page 124 '22 • PAC-SM-422 Active filter voltage error RUN light TIMER light Content Error code Indoor Remote control: 5-time display (Model FDC100VNP-W only) flash 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure Restore normal condition. Is the power source normal? 2.
Page 125 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content 7-time flash Remote control: Green LED Red LED Outdoor fan motor anomaly Outdoor unit Keeps flashing 1-time flash control PCB (Models FDC100VN(S)X-W, FDC200VSA-W only) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 126 '22 • PAC-SM-422 RUN light TIMER light Error code Content Indoor display 7-time flash Remote control: Outdoor fan motor anomaly Green LED Red LED Outdoor unit (Models FDC100VN(S)A-W only) control PCB Keeps flashing 1-time flash 5. Troubleshooting 1. Applicable model Models FDC100VN(S)A-W Diagnosis Countermeasure...
Page 127 '22 • PAC-SM-422 RUN light TIMER light Outdoor fan motor anomaly Error code Content Indoor Remote control: 7-time display (Model FDC100VNP-W only) flash 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure Does any foreign material intervene Remove foreign matter. in rotational area of fan propeller? Does the...
Page 128 '22 • PAC-SM-422 RUN light TIMER light Low pressure error or Indoor display Error code Content – – low pressure sensor anomaly (1/2) Green LED Red LED Outdoor unit Remote control: (Models FDC100VN(S)X-W, 100VN(S)A-W, control PCB Keeps flashing 1-time flash Yellow LED Outdoor unit 200VSA-W only)
Page 129 '22 • PAC-SM-422 Low pressure error or RUN light TIMER light Error code Indoor display Content – – low pressure sensor anomaly (2/2) Remote control: Green LED Red LED Outdoor unit (Models FDC100VN(S)X-W, 100VN(S)A-W, Keeps flashing 1-time flash control PCB Yellow LED 200VSA-W only) Outdoor unit...
Page 130 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content 4-time flash Remote control: Green LED Red LED Inverter and fan motor anomaly Outdoor unit Keeps flashing 1-time flash control PCB (Models FDC100VN(S)X-W, 100VN(S)A-W only) Yellow LED Outdoor unit 6-time flash inverter PCB 5.
Page 131 '22 • PAC-SM-422 RUN light TIMER light Indoor display Error code Content 4-time flash Green LED Red LED Outdoor unit Remote control: Inverter or power transistor anomaly control PCB Keeps flashing 1-time flash (Model FDC200VSA-W only) Yellow LED Outdoor unit inverter PCB 8-time flash 5.
Page 132 '22 • PAC-SM-422 RUN light TIMER light Content Green Power transistor anomaly Error code Error code Content Indoor Remote controller: E51 Remote control: 4-time Power transistor error display (Model FDC100VNP-W only) Keeps flashing Stays Off Indoor flash 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure...
Page 133 '22 • PAC-SM-422 RUN light TIMER light Suction pipe temperature Indoor display Error code Content – – sensor anomaly Green LED Red LED Outdoor unit Remote control: (Models FDC100VN(S)X-W, 100VN(S)A-W, control PCB Keeps flashing 1-time flash Yellow LED Outdoor unit 200VSA-W only) inverter PCB Keeps flashing...
Page 134 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content Low pressure sensor anomaly – – Remote control: Green LED Red LED Outdoor unit (Models FDC100VN(S)X-W, 100VN(S)A-W, Keeps flashing 1-time flash control PCB 200VSA-W only) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 135 '22 • PAC-SM-422 RUN light TIMER light Compressor under-dome Error code Indoor display Content – – Remote control: temperature sensor anomaly Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB (Model FDC200VSA-W only) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 136 '22 • PAC-SM-422 Insufficient refrigerant amount RUN light TIMER light Error code Indoor display Content 7-time flash or detection of service valve closure Remote control: Green LED Red LED Outdoor unit (Models FDC100VN(S)X-W, FDC100VN(S)A-W, Keeps flashing 1-time flash control PCB FDC200VSA-W only) Yellow LED Outdoor unit...
Page 137 '22 • PAC-SM-422 Insufficient refrigerant amount RUN light TIMER light Error code Content or detection of service valve closure Indoor Remote control: 7-time display (Model FDC100VNP-W only) flash 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure Is the Open fully. service valve fully opened? Are the...
Page 138: Table Of Contents
'22 • PAC-SM-422 RUN light TIMER light Anomalous compressor Content Error code Indoor display – – Remote control: by loss of synchronism Red LED Green LED Outdoor unit (Models FDC100VN(S)A-W only) control PCB Keeps flashing 1-time flash 5. Troubleshooting 1. Applicable model Models FDC100VN(S)A-W Diagnosis Countermeasure...
Page 139: Applicable Model
'22 • PAC-SM-422 RUN light TIMER light Green Current safe stop Error code Content Error code Content Indoor Current safe stop Keeps flashing Stays Off Indoor Remote control: Remote controller: E58 3-time display (Model FDC100VNP-W only) (Model SRC40 - 60) flash Outdoor 3 time flash...
Page 140: Inverter Pcb
'22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content – – Remote control: Compressor startup failure (1/2) Green LED Red LED Outdoor unit Keeps flashing 5-time flash control PCB (Models FDC100VN(S)X-W only) Yellow LED Outdoor unit Stays OFF inverter PCB 5.
Page 141 '22 • PAC-SM-422 RUN light TIMER light Error code Indoor display Content – – Remote control: Compressor startup failure (2/2) Green LED Red LED Outdoor unit Keeps flashing 5-time flash control PCB (Models FDC100VN(S)X-W only) Yellow LED Outdoor unit Stays OFF inverter PCB 5.
Page 142: Diagnosis
'22 • PAC-SM-422 RUN light TIMER light Error code Content Indoor display Remote control: Compressor startup failure (1/2) Green LED Red LED Outdoor unit (Models FDC100VN(S)A-W only) control PCB Keeps flashing 5-time flash 5. Troubleshooting 1. Applicable model Models FDC100VN(S)A-W Diagnosis Countermeasure In case that the compressor...
Page 143 '22 • PAC-SM-422 RUN light TIMER light Error code Content Indoor display Remote control: Compressor startup failure (2/2) Green LED Red LED Outdoor unit (Models FDC100VN(S)A-W only) control PCB Keeps flashing 5-time flash 5. Troubleshooting 1. Applicable model Models FDC100VN(S)A-W Diagnosis Countermeasure From previous page...
Page 144 '22 • PAC-SM-422 RUN light TIMER light Indoor display Error code Content – – Green LED Red LED Outdoor unit Remote control: Compressor startup failure (1/2) control PCB Keeps flashing 5-time flash Yellow LED Outdoor unit (Model FDC200VSA-W only) inverter PCB 4-time flash 5.
Page 145: Liquid Refrigerant In
'22 • PAC-SM-422 RUN light TIMER light Indoor display Error code Content – – Green LED Red LED Outdoor unit Remote control: Compressor startup failure (2/2) control PCB Keeps flashing 5-time flash Yellow LED Outdoor unit (Model FDC200VSA-W only) inverter PCB 4-time flash 5.
Page 146 '22 • PAC-SM-422 RUN light TIMER light Content Error code Compressor startup failure Indoor Remote control: 2-time display (Model FDC100VNP-W only) flash 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure Disconnect the outdoor fan motor Compressor does not start at all. connector and try to startup.
Page 147 '22 • PAC-SM-422 RUN light TIMER light Error code Content Compressor rotor lock error Indoor Remote control: 2-time 2-time display (Model FDC100VNP-W only) flash flash 5. Troubleshooting 1. Applicable model Model FDC100VNP-W Diagnosis Countermeasure Is the power source voltage Check and correct the power source voltage.
Page 148 '22 • PAC-SM-422 1.3 ELECTRICAL WIRING (1) Indoor unit Model SRK100ZR-WF RWA000Z426...
Page 149 '22 • PAC-SM-422 (2) Outdoor units Model FDC100VNX-W PCA001Z886...
Page 150 '22 • PAC-SM-422 Model FDC100VSX-W PCA001Z887...
Page 151 Receiver Electronic Service valve expansion valve Flare connecting (Flare connecting) (EEV) Capillary tube '22 • PAC-SM-422 Liquid line Strainer Muffler 1.4 PIPING SYSTEM Model 100 Models FDT71, 100, 125, 140 Indoor unit Outdoor unit Cooling cycle Heating cycle Check joint 4-way valve Temperature sensor Gas line...
Page 152 '22 • PAC-SM-422 2. MICRO INVERTER PACKAGED AIR-CONDITIONERS CONTENTS 2.1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ....152 ..................152 2.1.1 Remote control .....152 2.1.2 Operation control function by the wired remote control ........152 2.1.3 Operation control function by the indoor control ........152 2.1.4 Operation control function by the outdoor control (Ⅰ) Models FDC100VNA-W,...
Page 153: Micro Inverter Packaged Air-Conditioners Contents 2.1 Outline Of Operation Control By Microcomputer
'22 • PAC-SM-422 2.1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 2.1.1 Remote control …………………………………………………………… See page 4. 2.1.2 Operation control function by the wired remote control ………… See page 7. 2.1.3 Operation control function by the indoor control ……………… See page 10. 2.1.4 Operation control function by the outdoor control ( I ) Models FDC100VNA-W, 100VSA-W (1) Determination of compressor speed...
Page 154: Compressor Start Control
'22 • PAC-SM-422 (2) Compressor start control (a) Compressor starts upon receipt of the thermostat ON signal from the indoor unit. (b) However, at initial start after turning the power source breaker, it may enter the standby state for maximum 30 minutes (“...
Page 155: Outdoor Fan Control
'22 • PAC-SM-422 (4) Outdoor fan control (a) Outdoor fan tap and fan motor speed Unit: min Model Mode Fan motor tap ➀ speed ➁ speed ➂ speed ➃ speed ➄ speed ➅ speed ➆ speed FDC100 Cooling/Dehumidifying Heating Note If the “silent mode start” signal is received from the remote control and SW7-3 is ON, the speed changes from 600 to 500. (b) Fan tap control during Cooling/Defumidifying operation Fan taps are selected depending on the outdoor heat exchanger temperature (Tho-R1, R2) and the outdoor air temperature (Tho-A).
Page 156: Defrost Operation
'22 • PAC-SM-422 (ii) The outdoor heat exchanger temperature is detected always and, when the number of revolutions of the outdoor fan speed has been increased or decreased, there is no change of fan speed for 20 seconds. (iii) Range of the outdoor fan speed under this control is as follows. a) Lower limit: 130min b) Upper limit: 350min (iv) As any of the following conditions is established, this control terminates.
Page 157: Protective Control/Anomalous Stop Control By Compressor S Number Of Revolutions
'22 • PAC-SM-422 (ii) Defrost conditions B 1) When previous defrost ending condition is the time out of defrost operation and it is in the heating operation after the accumulative compressor operation time after the end of defrost operation has become 30 minutes. 2) After 5 minutes from the start of compressor 3) After 5 minutes from the start of outdoor fan (iii) Defrost condition C...
Page 158 '22 • PAC-SM-422 (ii) Anomalous stop control a) As the outdoor heat exchanger temperature (Tho-R) exceeds the setting value, the compressor stops. b) If it is detected 5 times within 60 minutes or 63°C or higher continues for 30 minutes, including the stop of compressor, E35 is displayed on the remote control and it enters the anomalous stop mode.
Page 159 '22 • PAC-SM-422 (f) Over-current protection current safe controls I, II Detecting the outdoor unit inverter input (primary) current and the output (secondary) current, if the current values exceed setting values, the compressor speed is controlled to protect the inverter. Reduces compressor speed at each minute.
Page 160: Silent Mode
'22 • PAC-SM-422 (k) Broken wire detection on temperature sensor and low pressure sensor (i) Outdoor heat exchanger temperature sensor, outdoor air temperature sensor and low pressure sensor If the following is detected for 5 seconds continuously within 2 minutes to 2 minutes and 20 seconds after the compressor ON, the compressor stops.
Page 161: Pump-Down Control
'22 • PAC-SM-422 (9) Pump-down control When SW7-1 is OFF, turning ON the pump-down switch SW1 for 2 seconds during the operation stop or anomalous stop (excluding the thermostat OFF), the pump-down operation is performed. (This is invalid when the indoor unit is operating. This is effective even when the indoor unit is stopped by the anomalous stop or the power source is turned OFF.) (a) Control contents 1) Close the service valve at the liquid side.
Page 162: Determination Of Comressor Speed
'22 • PAC-SM-422 ( II ) Model FDC200VSA-W (1) Determination of compressor speed Required compressor speed Cooling/dehumidifying operation. Unit: rps Model FDC200 Usual operation Outdoor air temperature ≦ 15°C or Max. required indoor return air temperature ≦ 20°C compressor speed Silent mode 50 (68) Min.
Page 163: Compressor Start Control
'22 • PAC-SM-422 (2) Compressor start control Compressor starts upon receipt of the thermostat ON signal from the indoor unit. (b) However, at initial start of heating mode after turning on the power source breaker, it may enter the standby state for maximum 30 minutes (“...
Page 164: Outdoor Fan Control
'22 • PAC-SM-422 (4) Outdoor fan control (a) Outdoor fan speed and fan motor revolution Unit: min Model Mode Fan motor revolution Speed ➀ Speed ➁ Speed ➂ Speed ➃ Speed ➄ Speed ➅ Speed ➆ FDC200 Cooling/Dehumidifying Heating (b) Fan speed control during Cooling/Defumidifying operation Fan speeds are selected depending on the outdoor heat exchanger temperature (Tho-R1, R2) and the outdoor air temperature (Tho-A).
Page 165 '22 • PAC-SM-422 (d) Outdoor fan control at cooling low outdoor air temperature When all the following conditions are established after the start of compressor, the following control is implemented. If the outdoor air temperature (Tho-A) is in the zone in the cooling/dehumidifying mode, it has elapsed 20 seconds from the start of outdoor fan and the outdoor fan is at the speed ➀, the outdoor fan speed is controlled according to the outdoor heat exchanger temperature (Tho-R1, R2).
Page 166: Defrost Operation
'22 • PAC-SM-422 (5) Defrost operation (a) Starting conditions If all of the following defrost conditions A or conditions B are satisfied, the defrost operation starts. Defrost conditions A Accumulative compressor operation time after the end of defrost operation has elapsed 37 minutes, and the accumulative compressor operation time after the start of heating operation (remote control ON) has elapsed 30 minutes.
Page 167: Protective Control/Anomalous Stop Control By Compressor S Number Of Revolutions
'22 • PAC-SM-422 (6) Protective control/anomalous stop control by compressor’s number of revolutions (a) 　 Compressor discharge pipe temperature protection Discharge pipe temperature control (Solenoid valve SV1 control(At heating mode)) The solenoid valve SV1 opens to suppress the rise of discharge pipe temperature. 1) SV1 open condition In case the following conditions and other certain conditions are satisfied.
Page 168 '22 • PAC-SM-422 (b) 　 Cooling high pressure protection (i) Protective control 1 (Compressor speed control) Outdoor heat exchanger temperature (Tho-R) exceeds the control value A. Value A is changed from 59°C to 53°C by number of 63H1 operations. When the outdoor air temperature (Tho-A) is 40°C or higher. If outdoor heat exchanger temperature (Tho-R) is less than the control value A continuously for 6minutes, protective control finishes.
Page 169 '22 • PAC-SM-422 (c) Heating high pressure protection (i) Protective control As the indoor heat exchanger temperature (Th2) exceeds the setting value, the compressor speed is controlled to suppress the rise of high pressure. Control value A is changed from 57°C to 51°C by number of 63H1 operations. Model Control value A (°C) Reduces compressor speed...
Page 170 '22 • PAC-SM-422 (g) Over-current protection current safe controls I, II Detecting the outdoor inverter input (primary) current and the output (secondary) current, if the current values exceed setting values, the compressor speed is controlled to protect the inverter. Reduces compressor speed at each minute.
Page 171 '22 • PAC-SM-422 ( l ) Dewing prevention control [Control condition] During cooling and dehumidifying operation, if all the following conditions are established, the compressor speed is reduced to prevent dewing and water splash. (i) Cooling electronic expansion valve aperture (EEVC) is 500 pulses. (ii) Suction superheat is more than 10°C.
Page 172: Silent Mode
'22 • PAC-SM-422 (7) Silent mode As “Silent mode start” signal is received from the remote control, it operates by dropping the outdoor fan speed and the compressor speed. (b) For details, refer to items (1) and (4) above. (8) Test run It is possible to operate from the outdoor unit using the DIP switch on the outdoor unit control PCB.
Page 173: Base Heater On/Off Output Control (Option)
'22 • PAC-SM-422 (10) Base heater ON/OFF output control (Option) (i) Base heater ON conditions When all of following conditions are satisfied, the base heater is turned ON. ・Outdoor air temperature (detected with Tho-A) is 1ºC or lower. ・In the heating mode ・When the compressor is turned ON (ii) Base heater OFF conditions When either one of following conditions is satisfied, the base heater is turned OFF.
Page 174: Disassembly Procedure
'22 • PAC-SM-422 2.3 DISASSEMBLY PROCEDURE (1) Indoor unit 1) Remove the cover. 2) Remove the screw (The following 5 places).
Page 175 '22 • PAC-SM-422 3) Remove the cover. 4) Unplug the connector.
Page 176 '22 • PAC-SM-422 5) Unscrew. 6) Pull out control.
Page 177 '22 • PAC-SM-422 SRK100ZR-WF Operation table Operation by Operation by Operation by Function Setting wired remote control remote control Smart M-Air (SC-BIKN2) *1 ON/OFF ○ ○ ○ ○ ○ ○ OPERATION ○ ○ ○ AUTO MODE select ○ ○ ○ COOL ○...
Page 178: Outdoor Unit
'22 • PAC-SM-422 (2) Outdoor unit Model FDC200VSA-W 1. To remove the service panel (1) Remove 2 service panel fixing screws and remove service panel. 2. To remove the rear panel (1) Remove the service panel.(See No.1.) (2) Remove 12 rear panel fixing screws and remove rear panel. 3.
Page 179 '22 • PAC-SM-422 Coil of EEVC 6. To remove the electronic expansion valves, (example"EEVC") (1) Remove the service panel and rear panel.(See No.1,2.) (2) Disconnect the EEVC connector(CNEEV1) on PCB in control box. (3) Remove the EEVC coil wiring fixing bands. (3) Remove the EEVC coil by pull out on the top.
Page 180 '22 • PAC-SM-422 ① ② 11.To remove the printed circuit board (PCB) ≪Control PCB≫ (1) Remove the service panel.(See No.1.) (2) Pull off all the inserted connectors of control PCB.(Pic. ①) Remove wiring fixing screw of noise filter PCB.(◇ mark, Pic.①) (4) Take off 5 control PCB fixing locking supports and remove control PCB.(○...
Page 181: Electrical Wiring
'22 • PAC-SM-422 2.4 ELECTRICAL WIRING (1) Indoor unit ............................ See page 147. (2) Outdoor units Model FDC100VNA-W PCA001Z854...
Page 182 '22 • PAC-SM-422 Model FDC100VSA-W PCA001Z855...
Page 183 '22 • PAC-SM-422 Model FDC200VSA-W PCB004Z471...
Page 184: Piping System
'22 • PAC-SM-422 '19 • PAC-DB-308 2.5 PIPING SYSTEM (1) Single type Model 100 '19 • PAC-DB-308 Indoor unit Outdoor unit Cooling cycle Heating cycle 4-way valve Check joint Temperature sensor Muffler (3) Triple type (Tho-A) Gas line 15.88) φ Model 140 Flare connecting Gas branch...
Page 185 Service valve Strainer Strainer Strainer Strainer (Flare connecting) Liquid Electronic Electronic branch pipe expansion valve expansion valve (heating)(EEVH) (cooling)(EEVC) (φ9.52) '22 • PAC-SM-422 Receiver (2) Twin type Model 200 Gas branch pipe (φ15.88) Indoor unit Indoor unit Outdoor unit Cooling cycle Heating cycle Check joint 4-way valve...
Page 186 '22 • PAC-SM-422 3. STANDARD INVERTER PACKAGED AIR-CONDITIONERS CONTENTS 3.1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ……… 186 3.1.1 Remote control …………………………………………………………… 186 3.1.2 Operation control function by the wired remote control ………… 186 3.1.3 Operation control function by the indoor control ………………… 186 3.1.4 Operation control function by the outdoor control …………………...
Page 187: Outline Of Operation Control By Microcomputer
'22 • PAC-SM-422 3.1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 3.1.1 Remote control …………………………………………………………… See page 4. 3.1.2 Operation control function by the wired remote control ………… See page 7. 3.1.3 Operation control function by the indoor control ………………… See page 10. 3.1.4 Operation control function by the outdoor control (1) Compressor speed Unit: rps...
Page 188 '22 • PAC-SM-422 (c) Relationship between compressor speed and outdoor fan speed. Outdoor fan speed is controlled according to the operation mode (Heating/cooling) and the compressor speed. Unit: rps Fan speed 1st speed 2nd speed 3rd speed 4th speed 5th speed 6th speed 7th speed 8th speed...
Page 189: Defrost Operation
'22 • PAC-SM-422 (ii) Heating Operating conditions When the outdoor air temperature (TH2) is 13ºC or higher continues for 30 seconds while the compressor speed is other than 0 rps Detail of operation After the outdoor fan operates at -3 speed for 60 seconds; the corresponding outdoor heat exchanger temperature shall im- plement the following controls.
Page 190: Cooling Overload Protective Control
'22 • PAC-SM-422 (b) Ending conditions (Operation returns to the heating cycle when either one of the following is satisfied.) Outdoor heat exchanger sensor (TH1) temperature: 10ºC or higher. (ii) Continued operation time of defrost operation → For more than 15 minutes. •...
Page 191: Cooling Low Outdoor Temperature Protective Control
lower limit After lapse of 20 sec. or over speed 30 rps 0rps '22 • PAC-SM-422 Outdoor heat exchanger temperature (°C) (7) Cooling low outdoor air temperature protective control (a) Operating conditions When the outdoor air temperature (TH2) is CºC or lower continues for 20 seconds while the compressor speed is other than 0 rps (b) Detail of operation The lower limit of the compressor speed is set to 45 (35) <20>...
Page 192: Heating Overload Protective Control
'22 • PAC-SM-422 (9) Heating overload protective control (a) Operating conditions When the outdoor air temperature (TH2) is 13°C or higher continues for 30 seconds while the compressor speed is other than 0 rps (b) Detail of operation calculation exceeds 90(75)rps the upper limit, the upper limit value is maintained.
Page 193: Current Safe
'22 • PAC-SM-422 (ii) If the temperature of 115ºC is detected by the sensor on the discharge pipe, then the compressor will stop im- mediately.When the discharge pipe temperature drops and the time delay of 3 minutes is over, the unit starts again within 1 hour but there is no start at the third time.
Page 194: Silent Mode
'22 • PAC-SM-422 (18) Silent mode As “Silent mode start” signal is received from the remote control, it operates by dropping the outdoor fan tap. Item Outdoor fan tap (Upper limit) Model FDC100VNP-W Cooling: 7th speed, Heating: 5th speed (19) Broken wire detection on temperature sensor Outdoor unit heat exchanger temperature sersor, outdoor air temperature sensor If the following is detected for 5 seconds continuously within 2 minutes to 2 minutes and 20 seconds after the compressor ON or with in 20 seconds after power ON, the compressor stops.
Page 195: Maintenance Data
'09•SRK-DB-087D '22 • PAC-SM-422 Reference Reference 3.2 MAINTENANCE DATA 2 TROUBLESHOOTING PROCEDURES FOR ELECTRICAL EQUIPMENT This chapter has described about an indoor unit. Look at 1.2 chapters about the outdoor unit. (1) Cautions (2) Items to check before troubleshooting source (3) Troubleshooting procedure (If the air-conditioner does not run at all) satisfied Important...
Page 196 '09•SRK-DB-087D '22 • PAC-SM-422 (4) Troubleshooting procedure (If the air-conditioner runs) See page 196. See pages 197 - 203. See pages 197 - 203.
Page 197 '22 • PAC-SM-422 (5) Self-diagnosis table Wired Indoor unit display panel Description remote Cause Display (ﬂashing) condition control TIMER of trouble display light light When a heat exchanger temperature sensor 1 wire disconnection is detected • Broken heat exchanger temperature Heat exchanger 1-time sensor 1 wire, poor connector...
Page 198 '22 • PAC-SM-422 (6) Service mode (Trouble mode access function) (a) Explanation of terms Explanation Term The service mode is the mode where service data are displayed by flashing of the display Service mode lights when the operations in item (b) below are performed with the indoor control. These are the contents of error displays and protective stops which occurred in the past in the air-conditioner system.
Page 199 '22 • PAC-SM-422 4-time flash 2-time flash. wireless mode mode Self-diagnosis data wireless mode mode Wireless remote control setting Contents of output data Operation mode Fan speed mode wireless Indicates the number of Wireless remote control setting occasions previous to the present Temperature setting the error display data are from.
Page 200 '09•SRK-DB-087D '22 • PAC-SM-422 (Example) Wireless remote control setting Operation Displayed data Fan speed Temperature mode mode setting Displays the reason for the stop (error code) the previous time an error was displayed. 21ºC Displays the reason for the stop (error code) 2 times previous when an error was displayed. 22ºC Cooling 23ºC...
Page 201 '09•SRK-DB-087D '22 • PAC-SM-422 (c) Error code, stop code table Number of ﬂashes when in service mode Stop code Error Auto TIMER Error content Cause Occurrence conditions display recovery light light Error code (10's digit) (1's digit) Normal Error of wired remote control The wired remote control wire Y is open.
Page 202 '09•SRK-DB-087D '22 • PAC-SM-422 4-time flash 2-time flash. (d) Operation mode, Fan speed mode information tables (i) Operation mode (ii) Fan speed mode Display pattern when Display pattern when Fan speed in service mode in service mode Operation mode mode when when there is an there is an RUN light...
Page 203 '09•SRK-DB-087D '22 • PAC-SM-422 (e) Temperatare information Room air temperature sensor, indoor heat exchanger temperature sensor, outdoor air temperature sensor, outdoor heat exchanger temperature sensor temperature Unit: °C TIMER light (1’s digit) RUN light (10’s digit) Buzzer sound (sounds for 0.1 second) (does not sound) temperature information Sensor value displayed when the error code is normal...
Page 204 '09•SRK-DB-087D '22 • PAC-SM-422 (ii) Discharge pipe sensor temperature Unit: °C TIMER light (1’s digit) RUN light (10’s digit) Buzzer sound (sounds for 0.1 second) (does not sound) temperature information Sensor value displayed when the error code is normal -64ºC data 0.1 sec.
Page 205 '09•SRK-DB-087D '22 • PAC-SM-422 Service data record form Wireless r Operation mode Fan speed mode Wireless r Wireless r Wireless r Wireless r Wireless r wireless 198.)
Page 206 '09•SRK-DB-087D '22 • PAC-SM-422 (7) Inspection procedures corresponding to detail of trouble Sensor error Broken sensor wire, connector poor connection Sensor temperature characteristics (Room air temperature, indoor heat exchanger temperature) (Short-circuit) - 10 Temperature (˚C) Indoor fan motor error Defective fan motor, connector poor connection, defective indoor unit PCB the fan motor and indoor unit PCB separately.
Page 207 '09•SRK-DB-087D '22 • PAC-SM-422 Error of signal transmission Wiring error including power cable, defective indoor/ outdoor unit PCB source ② ③ Defective outdoor unit PCB ② ③ Defective outdoor unit PCB. Check crossover wires. ① ② Defective indoor unit PCB...
Page 208 '22 • PAC-SM-422 (8) Phenomenon observed after short-circuit, wire breakage on sensor Phenomenon Operation Sensor mode Short-circuit Disconnected wire Cooling Room air temperature sensor Heating Cooling Freezing cycle system protection trips and stops the compressor. Heat exchanger temperature sensor Heating Cooling Humidity sensor Heating...
Page 209 blocks ② and ③ oscillating between PCB. DC 0 and 20V? '22 • PAC-SM-422 Indoor electrical components are normal. (b) Indoor fan motor check procedure This is a diagnostic procedure for determining if the indoor fan motor or the indoor unit PCB is broken down. (i) Indoor unit PCB output check in the following figure are output for approximately 30 seconds, it means that the indoor unit PCB is normal and the fan motor is broken down...
Page 210 Operation SW ON Measure in this section '22 • PAC-SM-422 (10) How to make sure of wireless remote control wireless wireless wireless wireless wireless wireless Simplified check methd of wireless remote control It is normal if the signal transmission section of the wireless remote control emits a whitish light at each transmission on the monitor of digital camera.
Page 211: Electrical Wiring
'22 • PAC-SM-422 3.3 ELECTRICAL WIRING (1) Indoor unit ............................. See page 147. (2) Outdoor unit Model FDC100VNP-W PCA001Z876...
Page 212: Piping System
Capillary tube (Thi-R1) Electronic (Flaare connecting) expansion valve Temperature sensor (Heat Liquid pipe (EEV) exchanger) (φ6.35) Capillary tube (Thi-R2) '22 • PAC-SM-422 Strainer Strainer Reducer (Accessory) '19 • PAC-DB-333 3.4 PIPING SYSTEM 3.5 PIPING SYSTEM Indoor unit Outdoor unit Heating cycle Model 100 Cooling cycle Service valve...
Page 213 '22 • PAC-SM-422 4. WIRELESS LAN INTERFACE SETTING MANUAL • This document describes how to connect to network via Wireless LAN. • Read this manual carefully, and store it in a safe place after reading. • Be sure to also read the “Safety precautions” in the user’s manual included with the product.
Page 214 '22 • PAC-SM-422 Preparation before connection Prepare the following items. Server Smartphone (tablet PC) Supported OS Android 8 to 10 iOS 12 to 14 Internet line and communication equipment Smartphone (modem, router, ONU etc.) Application Router (wireless LAN access point) “Smart M-Air”...
Page 215 '22 • PAC-SM-422 (3) Creating user account 1) Smartphone setting Turn on Wi-Fi of your smartphone and connect smartphone and router. 2) Application initial setting Initial application settings and the application starts. 3) After startup, the “Language / Time Zone Setting” screen appears.
Page 216 '22 • PAC-SM-422 5) The “Startup” screen appears. Tap [Operate Air Conditioner]. 6) The “Log in” screen appears. Tap [Create an Account]. The “Handling of Personal Information” screen appears. Read and check the statement in full. To consent and proceed with using the application tap [Agree].
Page 217 '22 • PAC-SM-422 7) The “Create an Account” screen appears. Enter your e-mail address and password Tap the [Create an Account] button. <Note> A password must be between 8 to 16 characters including at least one alphabetic character and one numeric character.
Page 218 '22 • PAC-SM-422 the connection method with the wireless remote control (WPS/AP) <Note> If [Find unregistered Air Conditioners] button has been performed correctly. 2) The Wireless LAN connection setting cannot be set whilst the unit is wireless remote control. 3) Select the Wireless LAN connection setting “SL” by pressing the MENU switch on the wireless remote control.
Page 219 '22 • PAC-SM-422 (5) Connect the air conditioner to the network. (WPS/AP). See item (A) for WPS, and item (B) for AP. (A) Connect the air conditioner to the network with WPS function 1) Press the WPS button. Press the WPS button on the router*. The buttons WPS button generally look like this.
Page 220 '22 • PAC-SM-422 3) Tap the [Enter] button to select the air conditioner you want to add. The following screen will be displayed when registration is complete.
Page 221 '22 • PAC-SM-422 (B) Connect the air conditioner to the network with AP 1) Change the Wi-Fi connection destination of your smartphone to enter “Smart M-Air-XXXX”* and KEY. *XXXX indicates the last 4 digits of the MAC address for the air conditioner. 2) On the “Air Conditioner List”...
Page 222 '22 • PAC-SM-422 After selecting the network to connect to from the displayed list, the SSID Next, enter your home Wi-Fi network password and tap the at the *If the home Wi-Fi network SSID number is not input automatically then it will need to be entered manually.
Page 223 '22 • PAC-SM-422 (6) SSID, KEY and MAC address method SSID, KEY and MAC address are printed on the label attached to the front of the indoor unit. Attach the label to this manual and keep it. This can also be viewed by scanning the QR code on the label.
Page 224 '22 • PAC-SM-422 5. APPLICATION OPERATION MANUAL Smart M-Air Operation Manual [EN] RKZ012A107D RKZ012A107...
Page 225 '22 • PAC-SM-422 Table of contents (1) Application features ..............(2) Manipulation modes ..............Remote operation mode ..............228 Home restricted mode ..............228 Demo mode ..................228 (3) Preparation for use ............... Smartphone setting ................ 229 Application initial setting ..............229 Creating user account ..............
Page 226 '22 • PAC-SM-422 (7) Setting Weekly Timer ..............(8) Setting Timer by Specifying Date via Calendar ......Clear the timer set from the calendar ..........257 (9) Displaying Electricity Bill Graph ..........(10) Updating Firmware ..............(11) Main Menu ..................Canceling demo mode ..............
Page 227: Application Features
'22 • PAC-SM-422 (1) Application features You can operate the air conditioner in each room at home or from outside. • Setting operation reservation of every day of the week for each air conditioner • Checking the power consumption of an air conditioner •...
Page 228 '22 • PAC-SM-422 Figure 1-1 Figure 1-2 Note Depending on the function of the connected air conditioner, the following operation will not be reflected in the operation of the air conditioner. Left/Right, 3D AUTO, Home leave mode, Electricity Bill Graph Depending on the function of the connected air conditioner, the following operation will not appear on the screen: Home leave mode setting, LED ON...
Page 229: Manipulation Modes
'22 • PAC-SM-422 (2) Manipulation modes • Remote operation mode This mode allows you to operate the registered air conditioner via the smartphone application when you are out of the office. Also, you can register and operate the air conditioner at home through a smartphone application.
Page 230: Preparation For Use
'22 • PAC-SM-422 (3) Preparation for use • Smartphone setting Turn on Wi-Fi of your smartphone. Figure 3-1 • Application initial setting Tap the Smart M-Air icon. Figure 3-2 The application starts. Figure 3-3 - 7 -...
Page 231 '22 • PAC-SM-422 After startup, the “Language/Time Zone Settings” screen appears. Select a language to use in the application. Select a time zone. Select the time zone in which the air conditioner to operate via the application exists. Choose the unit of temperature. Finally, tap on the top right to complete the setting.
Page 232: Creating User Account
'22 • PAC-SM-422 On the startup screen, select a mode to use. Operate Air Conditioner (Remote operation mode) Tap "Operate Air conditioner" for remote control or to use optional functions such as weekly timer. → To “Creating user account” Home Use Only (Home restricted mode) Tap "Home Use Only"...
Page 233 '22 • PAC-SM-422 Read the text of Handling of Personal Information to the bottom and check the description. If you agree it and use the application, tap [Agree]. Figure 3-8 The “Create an Account” screen appears. Enter your e-mail address and password and tap the [Create an Account] button.
Page 234 '22 • PAC-SM-422 When the pop-up message “Create an Account” appears, tap [OK]. The email containing the URL of the authentication screen will be sent to the email address you entered, so please click the URL within 24 hours to complete the account creation.
Page 235: Registering Air Conditioner
'22 • PAC-SM-422 • Registering air conditioner Use the “Air Conditioner List” screen to register an air conditioner to operate. Tap the "Find unregistered Air Conditioners" button to display air conditioners that are not registered on your smartphone. Figure 3-12 The air conditioner name ( locations) displays the last 6 digits of the SSID on the label of the...
Page 236: Wireless Lan Settings Of Air Conditioner
'22 • PAC-SM-422 • Wireless LAN settings of air conditioner If your wireless LAN router does not support WPS, manually make wireless LAN settings of your air conditioner. Set the wireless LAN interface to the AP mode, and then change the Wi-Fi connection destination of your smartphone to “Smart-M-Air-XXXX”.
Page 237 '22 • PAC-SM-422 When you tap the network you want to set from the displayed list, the SSID appears in the "SSID" entry field at the bottom of the screen, enter "Your home Wi-Fi password" below it, and tap in the top right. If the network you want to set is not displayed in the list, enter "SSID"...
Page 238: Naming Air Conditioner
'22 • PAC-SM-422 • Naming air conditioner If you want to change the name of the air conditioner displayed in the application such as the air conditioner list screen, tap "Details" to display the detailed screen of the air conditioner. Figure 3-19 Press and hold down (1 second) an air conditioner name.
Page 239 '22 • PAC-SM-422 Figure 3-21 Enter a new air conditioner name and tap [YES]. Figure 3-22 Figure 3-23 - 16 -...
Page 240: Basic Usage
'22 • PAC-SM-422 (4) Basic usage • Starting / Stopping air conditioner operation To start or stop the operation, tap the [ON] / [OFF] button of the air conditioner that you want to operate on the “Air Conditioner List” screen. When the button color changes, switching is complete.
Page 241: Changing Temperature
'22 • PAC-SM-422 To change the “Operation mode”, tap each mode from “Auto” to “Dry”. appears when the air conditioner is in clean mode. To cancel clean mode, tap appears when the weekly timer is set by this application. appears when the application is used at home where the air conditioner is set and connected to the application.
Page 242: Changing Fan Speed And Air Flow Direction
'22 • PAC-SM-422 When the operation mode is Fan, Set temp. shows "-". Figure 4-5 • Changing fan speed and air flow direction to change settings. Figure 4-6 - 19 -...
Page 243: Switching Vacant Property Mode
'22 • PAC-SM-422 • Switching Vacant Property Mode When Vacant Property Mode is ON, operation mode and Set temp. can be set as follows. ■ Cool : Set temp. 31°C to 33°C (at 1°C intervals) ■ Heat : Set temp. 10°C to 17°C (at 1°C intervals) Only "Cool"...
Page 244: Using Favourites
'22 • PAC-SM-422 (5) Using Favourites Register your desired settings of “Set temp”, “Operation mode”, “Fan”, “Up / Down” and “Left / Right” with Favourite. Tapping the [Favourite] button changes the current settings to the registered settings. On the air conditioner details screen, press and hold down (1 sec) the [Favourite 1] or [Favourite 2] button.
Page 245 '22 • PAC-SM-422 When you tap the [Favourite 1] or [Favourite 2] button, the current settings are changed to the favourite settings you tapped. Figure 5-3 - 22 -...
Page 246 '22 • PAC-SM-422 To change the name of the "Favourite" button, press and hold down the "Favourite" button for approximately 1 second. "Edit Favourite name" dialog appears to change the name. Figure 5-4 Figure 5-5 - 23 -...
Page 247 '22 • PAC-SM-422 Enter the new favourite name and tap [YES]. Figure 5-6 Figure 5-7 - 24 -...
Page 248: Using Options
'22 • PAC-SM-422 (6) Using Options You can make various option settings such as alerts and LED lighting, and check the number of accounts registered with an air conditioner. Home restricted mode : Only “Home Leave Mode”, “Cooling specific” and “LED ON” are operable. Demo mode : Options are not operable.
Page 249: Shut-Off Reminder Alert
'22 • PAC-SM-422 Only "LED ON" is ON by default. Switch between [ON] and [OFF], and tap on the top right of the screen to save the settings you changed. Note • Shut-off reminder alert, AC error notification, Hi temp/low temp alert , Watching function can be used with "Remote operation mode".
Page 250: Air Conditioner Error Notification
'22 • PAC-SM-422 ■ To not to receive alerts, tap [OFF]. When the pop-up message “If your external location is disabled, it cannot be retrieved. Do you want to disable the external location?” appears, tap [YES] and then tap on the top right.
Page 251: Hi Temp/Low Temp Alert
'22 • PAC-SM-422 • Hi temp/low temp alert When the air conditioner reaches the specified high/low temperature condition, a push notification is sent to the smartphone application. ■ To receive alerts, tap [ON] and enter the high and low temperatures and then tap on the top right.
Page 252: Watching Function
'22 • PAC-SM-422 • Watching function When the air conditioner is controlled other than your smartphone, an e-mail is sent to the registered e-mail address. Note Note • The notification also applies to the operation with the timer of the air conditioner itself and the end of internal clean operation.
Page 253 '22 • PAC-SM-422 ■ To change the setting of home leave mode, tap . To hide them, . The following settings can be changed. Determine temp : Set the preferred outside temperature to start the operation of the air conditioner in cooling/heating mode.
Page 254: Cooling Specific
'22 • PAC-SM-422 • Cooling specific If you set it as an air conditioner for cooling only, you won't be able to use the heating in the smartphone application. ■ To use “Cooling specific”, tap [ON] and then tap on the top right. •...
Page 255: Setting Weekly Timer
'22 • PAC-SM-422 (7) Setting Weekly Timer Makes the timer setting for every day of the week. Tap [Weekly Timer] on the lower part of the air conditioner details screen. The “Weekly Timer” screen appears. Figure 7-1 on the top right of the screen to save the settings you changed. Tap the day of the week you want to set to display the timer list for that day of the week.
Page 256 '22 • PAC-SM-422 A disabled timer shows the time and operation mode only. Tap the switch at to enable and edit. Edit each item and tap on the top right to set the timer on the target day. Figure 7-3 When at least one timer setting is ON, the timer icon appears on the air conditioner detail screen.
Page 257: Setting Timer By Specifying Date Via Calendar
'22 • PAC-SM-422 (8) Setting Timer by Specifying Date via Calendar When you set the weekly timer, the same timer is applied to the same day every week. To turn off the timer or set the timer of a different day on a certain day, set individually from the “Calendar”...
Page 258: Clear The Timer Set From The Calendar
'22 • PAC-SM-422 Tap the date of the calendar. Select the timer of the day of the week that you want to apply from “Weekly Timer Settings” and tap on the top right of the screen. If you select “OFF” from “Weekly Timer Settings”, the weekly timer is not applied.
Page 259 '22 • PAC-SM-422 From “Weekly Timer Settings”, select the same day of the week as the date to clear and tap Figure 8-4 When cleared, the background of the date is displayed in white. Figure 8-5 - 36 -...
Page 260: Displaying Electricity Bill Graph
'22 • PAC-SM-422 (9) Displaying Electricity Bill Graph Displays an electricity bill by month on a graph. You can also set the electricity unit cost. Note Depending on the type of air conditioner you connect, the function may be disabled. Tap [Electricity Bill Graph] on the lower part of the air conditioner details screen.
Page 261: Updating Firmware
'22 • PAC-SM-422 (10) Updating Firmware If the firmware of your wireless LAN interface is not up to date, an exclamation mark appears on the “Air Conditioner List” screen. Tap [Details] to display the air conditioner details screen. Figure 10-1 Tap the [Firmware update] button.
Page 262 '22 • PAC-SM-422 Tap [YES] to update the firmware to the latest one. The firmware update takes 10 minutes (Max). The operation from the application is not accepted during that period. If after 10 minutes (Max) the "Firmware update" button appears, retry the firmware update. Figure 10-3 When the firmware becomes up to date, the firmware version appears instead of the...
Page 263: Main Menu
'22 • PAC-SM-422 (11) Main Menu Tap the menu button ( ) that appears on the top left in the screen such as “Air Conditioner List”, to display the main menu. ■ Air Conditioner List : Operates or sets an Air conditioner.
Page 264: Canceling Demo Mode
'22 • PAC-SM-422 • Canceling demo mode In the demo mode Cancel demo : Exits the demo mode. Figure 11-2 - 41 -...
Page 265: Checking Alerts
'22 • PAC-SM-422 (12) Checking Alerts Open the main menu and tap [Alerts]. Figure 12-1 A list of alerts appears. Tap each alert to display the alert details screen and check it. appears to the alert that is not checked in the alert details screen.
Page 266 '22 • PAC-SM-422 Figure 12-3 - 43 -...
Page 267: Changing Application Settings
'22 • PAC-SM-422 (13) Changing Application Settings Open the main menu and tap [App Settings]. Figure 13-1 The “Application Settings” screen appears. ■ Switch Operation Modes: Switches between the remote operation mode and home restricted mode. → To “Switch Operation Modes” ■...
Page 268: Switch Operation Modes
'22 • PAC-SM-422 Note • In "Home restricted mode", you cannot operate "Password Settings". In "Try a Demo", only "Language/Time Zone Settings" and "Application Version Display" can be operated. Functions that cannot be operated are displayed in gray, and nothing is displayed even if you tap them.
Page 269: Switching To "Home Restricted Mode
'22 • PAC-SM-422 When the account creation pop-up message appears, tap [OK], agree with the handling of personal information, and create an account. → To “Creating user account” Figure 13-4 • Switching to “Home restricted mode” Tap [Home restricted mode] → Tap on the top right to switch the mode.
Page 270 '22 • PAC-SM-422 The popup for remote control disabled and the popup for deleting server data will appear, so tap [YES]. Figure 13-6 Figure 13-7 When the operation mode switching completion pop-up message appears, tap [OK]. Figure 13-8 - 47 -...
Page 271: Reset Password
'22 • PAC-SM-422 • Reset Password Enter the registered e-mail address and tap the [Issue code] button. Note • After tapping the [Issue code] button, keep this screen displayed until the password resetting is completed. If you tap and return to the previous screen, these operations are canceled.
Page 272 '22 • PAC-SM-422 An e-mail with a security code will be sent to the e-mail address you entered. Enter “Security code” and “New password” and tap [Reset Password] ××××××××××@×××××.jp to update your password. Note • A password must be between 8 to 16 012345 characters including at least one alphabetic character and one numeric character.
Page 273: Language/Time Zone Settings
'22 • PAC-SM-422 • Language/Time Zone Settings The “Language/Time Zone Settings” screen appears. Select a language to use in the application. Select a time zone. Select the time zone in which the air conditioner to operate via the application exists. Choose the unit of temperature.
Page 274: Application Initialization
'22 • PAC-SM-422 • Application Initialization Initializes the smartphone application. Note • Note that if you initialize the application in “Remote operation mode”, the information of the account logged in is deleted. Tap [Initialize the application]. Figure 13-14 - 51 -...
Page 275 '22 • PAC-SM-422 When the pop-up message “Your account information will be deleted. Do you want to initialize the application?” appears, tap [YES]. Figure 13-15 When the pop-up message "Initialization is complete. Close the application." appears, tap [OK] to close the application. Figure 13-16 - 52 -...
Page 276: Application Version Display
'22 • PAC-SM-422 • Application Version Display Displays the version of your smartphone application. Figure 13-17 - 53 -...
Page 277: Troubleshooting
'22 • PAC-SM-422 (14) Troubleshooting • When the air conditioner that you want to register does not appear in the air conditioner list screen Tap the [Find unregistered Air Conditioners] Button to search unregistered air conditioners and update the “Air Conditioner List” screen. Figure 14-1 When asked for "search your local network"...
Page 278: How To Delete A Registered Air Conditioner
'22 • PAC-SM-422 • How to delete a registered air conditioner To delete a registered air conditioner, press and hold down (2 seconds) the icon of the target air conditioner. Figure 14-3 When the deleting air conditioner pop-up Message appears, tap [YES]. Figure 14-4 - 55 -...
Page 279: When An Abnormality Notification Appears In The Air Conditioner List
'22 • PAC-SM-422 • When an abnormality notification appears in the air conditioner list When an abnormality notification appears, air conditioner abnormality has been detected. Contact your dealer. When “AC error notification” of the option settings is enabled, an e-mail is sent to the registered e-mail address.
Page 280: When Operation Is Performed By Another Account
'22 • PAC-SM-422 • When operation is performed by another account The message shows in the following cases: • When the application is operated from other smartphones at the same time • When the air conditioner is changing its operation status by its set control The equipment is not malfunctioning, so please try again after a while.
Page 281 Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. Copyright MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. Copyright MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.

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Mitsubishi Heavy Industries SRK100VNXWZRF Service Manual

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