Mitsubishi Heavy Industries SRK63ZR-WF Technical Manual
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Mitsubishi Heavy Industries SRK63ZR-WF Technical Manual

Inverter wall mounted type residential air-conditioners
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TECHNICAL MANUAL
INVERTER WALL MOUNTED TYPE
RESIDENTIAL AIR-CONDITIONERS
Wi-Fi model
(Split system, air to air heat pump type)
SRK63ZR-WF
71ZR-WF
80ZR-WF
Manual No. '22 • SRK-T-362

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Summary of Contents for Mitsubishi Heavy Industries SRK63ZR-WF

  • Page 1 Manual No. '22 • SRK-T-362 TECHNICAL MANUAL INVERTER WALL MOUNTED TYPE RESIDENTIAL AIR-CONDITIONERS Wi-Fi model (Split system, air to air heat pump type) SRK63ZR-WF 71ZR-WF 80ZR-WF...

  • Page 2: Table Of Contents

    '22 • SRK-T-362 CONTENTS 1. SPECIFICATIONS ....................3 2. EXTERIOR DIMENSIONS ..................7 (1) Indoor units ....................7 (2) Outdoor units ....................8 (3) Remote control ...................10 3. ELECTRICAL WIRING ..................13 (1) Indoor units ....................13 (2) Outdoor units ....................14 4. NOISE LEVEL .....................15 5. PIPING SYSTEM ....................21 6.
  • Page 3 '22 • SRK-T-362 (16) Outline of cooling operation ...............44 (17) Outline of dehumidifying (DRY) operation ...........44 (18) Outline of automatic operation ..............45 (19) Protective control function ................45 10. MAINTENANCE DATA ..................54 (1) Cautions ......................54 (2) Items to check before troubleshooting ............54 10.

  • Page 4: Specifications

    '22 • SRK-T-362 1. SPECIFICATIONS 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 Model SRK63ZR-WF Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz n i l y t i ) ) . y t i ) ) . Heating capacity (H2) － n i l 1.63...
  • Page 5 '22 • SRK-T-362 SRK71ZR-WF Model Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz n i l y t i ) ) . y t i 10.8 ) ) . Heating capacity (H2) － n i l 1.93 Power consumption 1.95 Heating (H2)
  • Page 6 '22 • SRK-T-362 SRK80ZR-WF Model Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz n i l y t i ) ) . y t i 11.2 ) ) . Heating capacity (H2) － n i l 2.09 0.48 Power consumption 2.27...
  • Page 7 Packing material weight list Unit: kg Material Packing Metal Paper Gross parts Glass Plastic Wood Others weight weight Aluminium Steel board Model (Total) SRK63ZR-WF 19.5 2.64 0.00 0.77 1.87 0.00 0.00 0.00 0.00 Indoor SRK71ZR-WF 19.5 2.64 0.00 0.77 1.87 0.00 0.00 0.00...

  • Page 8: Exterior Dimensions

    '22 • SRK-T-362 2. EXTERIOR DIMENSIONS (1) Indoor units Models SRK63ZR-WF, 71ZR-WF, 80ZR-WF RLD000Z005...

  • Page 9: Outdoor Units

    '22 • SRK-T-362 (2) Outdoor units Model SRC63ZR-W RCT000Z031...
  • Page 10 '22 • SRK-T-362 Models SRC71ZR-W, 80ZR-W RCR000Z038...

  • Page 11: Remote Control

    '22 • SRK-T-362 (3) Remote control (3) Remote control (a) Wireless remote control Unit : mm...
  • Page 12 '22 • SRK-T-362 (b) Wired remote control (Option parts) Interface kit (SC-BIKN2-E) is required to use the wired remote control. Model RC-EX3A Installation space Dimensions (Viewed from front) 30mm 30mm Wiring 配線 30mm 30mm 30mm 30mm Fixing holes 固定穴 R/C temperature sensor Secure minimum spaces for disassembling the case.
  • Page 13 '22 • SRK-T-362 Model RC-E5 Wiring outlet Cut off the upper thin part of remote control lower case with a nipper or knife, and grind burrs with a file etc. Exposed mounting In case of pulling out In case of pulling out from upper left from center 0.3mm...

  • Page 14: Electrical Wiring

    '22 • SRK-T-362 3. ELECTRICAL WIRING (1) Indoor units Models SRK63ZR-WF, 71ZR-WF, 80ZR-WF RWA000Z426...

  • Page 15: Outdoor Units

    '22 • SRK-T-362 (2) Outdoor units Models SRC63ZR-W, 71ZR-W, 80ZR-W RCR000Z039...

  • Page 16: Noise Level

    '18 • SRK-DB-252 '22 • SRK-T-362 4. NOISE LEVEL 4. NOISE LEVEL (1) Sound power level (1) Sound power level Model SRK63ZR-W Model SRK63ZR-WF (Indoor unit) Condition ISO5151 T1/H1 Model SRK63ZR-WF Cooling 56 dB(A) MODE Rated capacity value (Hi) Noise...
  • Page 17 '18 • SRK-DB-252 '22 • SRK-T-362 '18 • SRK-DB-252 Model SRK71ZR-W Model SRK71ZR-W Model SRK71ZR-WF (Indoor unit) Condition ISO5151 T1/H1 Model SRK71ZR-WF (Indoor unit) ISO5151 T1/H1 Condition Cooling 57 dB(A) MODE Rated capacity value (Hi) Noise Model SRK71ZR-WF level Heating 60 dB(A) Cooling 57 dB(A)
  • Page 18 '18 • SRK-DB-252 '22 • SRK-T-362 '18 • SRK-DB-252 Model SRK80ZR-W Model SRK80ZR-W Model SRK80ZR-WF (Indoor unit) Condition ISO5151 T1/H1 Model SRK80ZR-WF (Indoor unit) Condition ISO5151 T1/H1 Cooling 60 dB(A) MODE Rated capacity value (Hi) Noise Model SRK80ZR-WF level Heating 62 dB(A) Cooling 60 dB(A)
  • Page 19 '18 • SRK-DB-252 (2) Sound pressure level (2) Sound pressure level (2) Sound pressure level Condition Condition ISO5151 T1/H1 ISO5151 T1/H1 Model SRK63ZR-WF Model SRK63ZR-W Model SRK63ZR-W (2) Sound pressure level (2) Sound pressure level Condition ISO5151 T1/H1 Condition ISO5151 T1/H1...
  • Page 20 '18 • SRK-DB-252 '22 • SRK-T-362 Model SRK71ZR-WF Condition ISO5151 T1/H1 Model SRK71ZR-W MODE Rated capacity value Mike position (Indoor unit) Model SRK71ZR-WF 0.8m Cooling 44 dB(A) Noise Unit Mike position level Heating 46 dB(A) (Center & low points) Cooling Heating 1000 2000...
  • Page 21 '18 • SRK-DB-252 '22 • SRK-T-362 Model SRK80ZR-WF Condition ISO5151 T1/H1 Model SRK80ZR-W MODE Rated capacity value Mike position (Indoor unit) Model SRK80ZR-WF 0.8m Cooling 47 dB(A) Noise Unit Mike position level Heating 47 dB(A) (Center & low points) Cooling Heating 1000 2000...

  • Page 22: Piping System

    '22 • SRK-T-362 5. PIPING SYSTEM Model SRK63ZR-WF Cooling cycle Heating cycle Outdoor air Indoor unit Outdoor unit temperature Flare sensor connection Service valve (TH2) (Gas) Discharge pipe temperature sensor Gas pipe Heat Check joint exchanger (TH3) (φ12.7) Humidity temperature...
  • Page 23 '22 • SRK-T-362 Model SRK80ZR-WF Cooling cycle Heating cycle Outdoor air Indoor unit Outdoor unit temperature Flare sensor connection Service valve (TH2) (Gas) Discharge pipe temperature sensor Heat Gas pipe Check joint exchanger (TH3) (φ15.88) Humidity temperature Muffler sensor sensor (Th3) (Th2 Muffler...

  • Page 24: Range Of Usage & Limitations

    6. RANGE OF USAGE & LIMITATIONS 6. RANGE OF USAGE & LIMITATIONS Model SRK25ZJP-S1, 35ZJP-S1 SRK50ZJP-S1 SRK63ZR-WF, 71ZR-WF, 80ZR-WF Item Cooling operation : Approximately 18 to 32℃ DB Indoor return air temperature Heating operation : Approximately 15 to 30℃ DB...
  • Page 25 (3) Correction relative to frosting on outdoor heat exchanger during heating Air inlet temperature of 5 or more outdoor unit in °C WB Adjustment coefficient 0.95 0.95 0.94 0.93 0.91 0.88 0.86 0.87 0.92 1.00 How to obtain the cooling and heating capacity SRK63ZR-WF 6.1k SRK63ZR-WF...

  • Page 26: Capacity Tables

    '22 • SRK-T-362 7. CAPACITY TABLES Model SRK63ZR-WF Cooling mode (kW) Heating mode (HC) (kW) Indoor air temperature Outdoor Outdoor Indoor air temperature Air flow ℃DB ℃DB ℃DB ℃DB ℃DB ℃DB ℃DB Air flow temperature temperature 1 ℃ DB 16℃ DB 1 ℃...

  • Page 27: Application Data

    '22 • SRK-T-362 RLD012A028 8. APPLICATION DATA Model SRK63,71,80,100ZR-WF (1) Installation of indoor unit R32/R410A REFRIGERANT USED • • This installation manual deals with an indoor unit installation only. For an outdoor unit installation, refer to page 30. • • This unit is designed for R32 or R410A. See a label on the outdoor unit to check refrigerant information. •...
  • Page 28 '22 • SRK-T-362 2. SELECTING INSTALLATION LOCATION After getting customer’s approval, select installation location according to following guidelines. 10cm minimum from the ceiling Installation example 1. Indoor unit Installation board • Where there is no obstruction to the air fl ow and where the cooled and heated air can be evenly Indoor distributed.
  • Page 29 '22 • SRK-T-362 6. FORMING PIPING AND DRAIN HOSE 1. Forming piping Forming of piping. Taping of the exterior Piping is possible in the right, rear, downward, left, left rear or left downward direction. • Hold the bottom of the piping and fi x direction •...
  • Page 30 '22 • SRK-T-362 10. HOW TO OPEN, CLOSE, REMOVE AND INSTALL 11. HOW TO REMOVE AND INSTALL FRONT PANEL THE AIR INLET PANEL 1. Open 1. Removing Air inlet panel Air filter Pull the air inlet panel at both ends of lower part (1) Remove the air inlet panel and the air fi...

  • Page 31: Installation Of Outdoor Unit

    '22 • SRK-T-362 RCT012A220 RCT012A220 (2) Installation of outdoor unit Model SRC63,71,80ZR-W INSTALLATION MANUAL FOR OUTDOOR UNIT R32 REFRIGERANT USED • This installation manual deals with an outdoor unit installation only. For an indoor unit installation, refer to page 26. SAFETY PRECAUTIONS •...
  • Page 32 '22 • SRK-T-362 2. OUTDOOR UNIT INSTALLATION Note as a unit designed for R32 3. Installation space Inlet • Do not use any refrigerant other than R32. R32 will rise to pressure about 1.6 times higher than that of • There must be 1 meter or larger space between the unit and Service space a conventional refrigerant.
  • Page 33 '22 • SRK-T-362 4. CONNECTING PIPING WORK 1. Restrictions on unit installation 4. Evacuation Abide by the following restrictions on unit installation. (1) Connect vacuum pump to gauge manifold. Connect charge hose of gauge manifold to service port Improper installation can cause compressor failure or performance degradation. of outdoor unit.
  • Page 34 '22 • SRK-T-362 RCT012A220 6. PUMP DOWN (1) Connect charge hose of gauge manifold to service port of outdoor unit. Gauge manifold (2) Close the liquid operation valve with hexagonal wrench key. (3) Fully open the gas operation valve with hexagonal wrench key. (4) Carry out forced cooling operation (For forced cooling operation procedure, refer to indoor unit installation manual).

  • Page 35: Safety Precautions In Handling Air-Conditioners With Flammable Refrigerant

    '22 • SRK-T-362 RSA012A061B (3) Safety precautions in handling air-conditioners with flammable refrigerant WALL TYPE AIR-CONDITIONER RSA012A061B R32 REFRIGERANT USED There is information included in the user’s manual and/or is leaked, together with an external ignition source, there is a installation manual.
  • Page 36 '22 • SRK-T-362 RSA012A061B CAUTION • 6. Repair to intrinsically safe components 13. Labelling • Do not apply any permanent inductive or • Equipment shall be labelled stating that it has been capacitance loads to the circuit without ensuring de-commissioned and emptied of refrigerant. The the working pressure is achieved, then venting to that this will not exceed the permissible voltage and label shall be dated and signed.

  • Page 37: Outline Of Operation Control By Microcomputer

    '22 • SRK-T-362 9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Operation control function by wireless remote control Operation section Transmission 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.

  • Page 38: Unit On/Off Button

    '22 • SRK-T-362 '09•SRK-DB-087D (2) Unit ON/OFF button wireless wireless (a) Operation (b) Details of operation from room temperature (as detected COOL HEAT Function Indoor temperature Fan speed Flap/Louver Timer Switch setting Operation mode COOL About 24°C HEAT About 26°C Unit ON/OFF button (3) Auto restart function Jumper wire (JA1)

  • Page 39: Selection Of The Annual Cooling Function

    '22 • SRK-T-362 (5) Selection of the annual cooling function The annual cooling control is valid from factory default setting. It is possible Jumper wire (JA3) to disable by cutting jumper wire (JA3), or changing the setting of DIP switch (SW2-4) on the interface kit (Option) PCB if it is connected.

  • Page 40: Air Flow Direction Adjustment

    ③ When the operation is retrieved from CLEAN or ALLERGEN CLEAR operation. (b) When the following operation are set, ECONOMY operation will be canceled. ① When the HI POWER/ECONO button is pressed again. '22 • SRK-T-362 ② When the operation mode is changed DRY to FAN. (c) Not operable while the air-conditioner is OFF.

  • Page 41: Auto Operation

    display Center installation Left Approx. 50° Left Approx. 20° Center Right Approx. 20° Right Approx. 50° '22 • SRK-T-362 (c) Swing (ii) In HEAT operation In COOL, DRY, FAN operation Approx. 5° Approx. 35° Approx. 60° Approx. 70° (d) Memory flap (Flap or Louver stopped) '09•SRK-DB-087D (e) When not operating (9) 3D auto operation...

  • Page 42: Timer Operation

    The air flow range setting As “Silent mode start” signal is received from the wireless remote control, it operates by dropping the outdoor fan tap and (iii) Setting the air-conditioning installation location. the compressor command speed. SRK63ZR-WF SRK71ZR-WF SRK80ZR-WF 5th speed 3rd speed...

  • Page 43: Air Flow Range Setting

    (c) OFF timer operation '22 • SRK-T-362 (13) Air flow range setting wireless (a) Setting If the air-conditioning unit is running, press the ON/OFF button to stop. The air flow range setting (ii) Press the AIR FLOW U/D (UP/DOWN) button and the AIR FLOW L/R (LEFT/RIGHT) button together for 5 seconds or more.

  • Page 44: Outline Of Heating Operation

    Compressor ON(HOT KEEP) Indoor fan motor Outdoor fan motor (few minutes ON) 4-way valve (3 minutes ON) (b) Details of control at each operation mode (pattern) Fuzzy operation Model SRK63ZR-WF SRK71ZR-WF SRK80ZR-WF Fan speed AUTO 12-120rps 20-116rps 20-120rps 12-120rps 20-116rps...

  • Page 45: Outline Of Cooling Operation

    Thermostat OFF Failure Compressor Indoor fan motor Outdoor fan motor (few minutes ON) (few minutes ON) 4-way valve (b) Detail of control in each mode (Pattern) Fuzzy operation Model SRK63ZR-WF SRK71ZR-WF SRK80ZR-WF Fan speed 20-98rps AUTO 12-106rps 20-76rps 20-98rps 12-106rps 20-76rps...

  • Page 46: Outline Of Automatic Operation

    (i) Indoor fan speed and compressor are controlled by the area which is selected by the temperature difference. Indoor fan speed (b) Detail of control in each mode (Pattern) Area Fuzzy operation Me speed Indoor fan speed ULo(Lo) speed STOP Model SRK63ZR-WF SRK71ZR-WF SRK80ZR-WF Fan speed Limited （Lower than 20-98rps AUTO normal cooling operation） 12-106rps 20-76rps 20-98rps...
  • Page 47 '22 • SRK-T-362 (ii) Contents of operation Air capacity control Model SRK63ZR-WF SRK71ZR-WF SRK80ZR-WF Item Follow the table below Range A Upper limit of compressor’s command speed 40rps 40rps 45rps Range B Note (1) Ranges A and B are as shown below.
  • Page 48 Operating conditions:Reset conditions When the outdoor air temperature (TH2) has become continuously for 30 seconds at 38(37)℃ or more, with the compressor running, the lower limit speed of compressor is brought up. Model SRK63ZR-WF Item Outdoor air temperature 38℃ or more 41℃...
  • Page 49 Models 71, 80 0rps Indoor heat exchanger temperature (°C) P2-P3 P3-P4 5 seconds P1-P2 speed Temperature list Model SRK63ZR-WF 54.5 - 56 56.5 RPSmin < 45 < = 57.0 RPSmin < 115 115 < = 45 - 43 52 - 50 56 - 55 56.5...
  • Page 50 RPSmin < 40 40 < = RPSmin < 80 80 < = RPSmin < 90 53 ~ 47 57 ~ 51 59 ~ 53 '22 • SRK-T-362 90 < = RPSmin < 102 47 ~ 41 51 ~ 45 53 ~ 47 102 <...
  • Page 51 Reset conditions: When either of the following condition is satisfied. '22 • SRK-T-362 The outdoor air temperature (TH2) becomes 6ºC. The compressor command speed is 0 rps. Compressor overheat protection Purpose (ii) Detail of operation (Example) Fuzzy 180 seconds or over 180 seconds or over 180 seconds or over Discharge pipe temperature (˚C)
  • Page 52 '22 • SRK-T-362 (m) Indoor fan motor protection Serial signal transmission error protection Purpose (ii) Detail of operation Rotor lock Outdoor fan motor protection Outdoor fan control at low outdoor temperature Cooling Operating conditions Detail of operation Outdoor fan Outdoor air temperature > 10(0)˚C Outdoor air temperature <...
  • Page 53 '22 • SRK-T-362 Reset conditions (ii) Heating Operating conditions (model 63 : 1 ） Detail of operation at each 20 seconds 8th (model71 : 7th) Reset conditions (model 63 : 3 ） Refrigeration cycle system protection Outdoor fan control at overload conditions. Starting conditions Cooling When A minutes have elapsed after the compressor ON or the completion of the defrost operation...
  • Page 54 at each 20 seconds 8th (model71 : 7th) Reset conditions '22 • SRK-T-362 (model 63 : 3 ） Refrigeration cycle system protection Starting conditions When A minutes have elapsed after the compressor ON or the completion of the defrost operation Other than the defrost operation When, after satisfying the conditions of 1) and 2) above, the compressor speed, indoor air temperature (Th1) and indoor heat exchanger temperature (Th2) have satisfied the conditions in the following table for B minutes:...

  • Page 55: Maintenance Data

    '09•SRK-DB-087D '22 • SRK-T-362 Reference Reference 10. MAINTENANCE DATA 2 TROUBLESHOOTING PROCEDURES FOR ELECTRICAL EQUIPMENT (1) Cautions (2) Items to check before troubleshooting source (3) Troubleshooting procedure (If the air-conditioner does not run at all) Important satisfied source wireless proced-...

  • Page 56: Troubleshooting Procedure (If The Air-Conditioner Runs)

    '09•SRK-DB-087D '22 • SRK-T-362 (4) Troubleshooting procedure (If the air-conditioner runs) 57-63. 57-63.

  • Page 57: Self-Diagnosis Table

    '22 • SRK-T-362 (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 58: Service Mode (Trouble Mode Access Function)

    '09•SRK-DB-087D '22 • SRK-T-362 (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 lights Service mode 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 59 '09•SRK-DB-087D '22 • SRK-T-362 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 60 '09•SRK-DB-087D '22 • SRK-T-362 (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 61 '09•SRK-DB-087D '22 • SRK-T-362 (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 62 '09•SRK-DB-087D '22 • SRK-T-362 (See the example shown below.) 4-time flash 2-time flash. (d) Operation mode, Fan speed mode information tables (ii) mode 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...
  • Page 63 '09•SRK-DB-087D '22 • SRK-T-362 (e) Temperature information (i) Room temperature sensor, indoor heat exchanger temperature sensor, outdoor air temperature sensor, outdoor heat exchanger temperature sensor 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 name...
  • Page 64 '09•SRK-DB-087D '22 • SRK-T-362 (ii) Discharge pipe temperature sensor 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 temperature sensor data ×...
  • Page 65 '09•SRK-DB-087D '22 • SRK-T-362 Service data record form Wireless r Operation mode Fan speed mode Wireless r Wireless r Wireless r Wireless r Wireless r wireless 58.)

  • Page 66: Inspection Procedures Corresponding To Detail Of Trouble

    '09•SRK-DB-087D '22 • SRK-T-362 (7) Inspection procedures corresponding to detail of trouble Sensor error Broken sensor wire, connector poor connection Temperature sensor characteristics (Room Discharge pipe temperature sensor characteristics temperature, indoor heat exchanger temperature, outdoor heat exchanger temperature, outdoor air temperature) (Short-circuit) (Short-circuit) - 10...
  • Page 67 '09•SRK-DB-087D '22 • SRK-T-362 Current cut Compressor lock, Compressor wiring short-circuit, Compressor output is open phase, Outdoor unit PCB is faulty, Service valve is closed, EEV is faulty, Compressor faulty. Is there any short-circuit? Defective outdoor unit PCB ＊   Defective outdoor unit PCB ＊...
  • Page 68 '09•SRK-DB-087D '22 • SRK-T-362 Overheat of compressor Gas shortage, defective discharge pipe temperature sensor temperature temperature Defective outdoor unit PCB Error of signal transmission Wiring error including power cable, defective indoor/ outdoor unit PCB ② ③ unit ② ③ unit ①...
  • Page 69 '09•SRK-DB-087D '22 • SRK-T-362 Trouble of outdoor unit Insufficient refregerant amount, Faulty power transistor, Broken compressor wire Service valve close, Defective EEV, Defective outdoor unit PCB unit ◆  unit     defrost operation   minutes or more Notes (1) (2) Check resistance between terminals, see page 66. unit between terminals ．...
  • Page 70 '22 • SRK-T-362 Rotor lock Defective compressor, defective outdoor unit PCB unit between terminals. See page 82. Service valve (gas side) closed, Service valve (gas side) closed operation (8) Phenomenon observed after shortcircuit, wire breakage on sensor Defective outdoor unit PCB (a) Indoor unit Phenomenon Operation...

  • Page 71: Phenomenon Observed After Short-Circuit, Wire Breakage On Sensor

    '22 • SRK-T-362 (8) Phenomenon observed after short-circuit, wire breakage on sensor (a) Indoor unit Phenomenon Operation Sensor mode Short-circuit Disconnected wire Cooling Room temperature sensor Heating Heat exchanger Cooling Freezing cycle system protection trips and stops the compressor. temperature sensor Heating Cooling...
  • Page 72 '22 • SRK-T-362 (b) Indoor fan motor check procedure 1) Indoor unit PCB output check ① ④ ⑤ DC several V (–) DC 308-336V (4-6 V) Measuring Voltage range when DC15V point normal ①  −  ③ − Indoor unit PCB ⑥...

  • Page 73: How To Make Sure Of Wireless Remote Control

    Operation SW ON Measure in this section '22 • SRK-T-362 (10) How to make sure of wireless remote control wireless wireless wireless wireless wireless wireless   Simplified check method 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 74: Outdoor Unit Inspection Points

    '22 • SRK-T-362 (12) Outdoor unit inspection points Models SRC63ZR-W, 71ZR-W, 80ZR-W ◆Check point of outdoor unit CAUTION- HIGH VOLTAGE High voltage is produced in the control box. Don't touch ◆Power source and serial signal inspection electrical parts in the control box for 5 minutes after the unit is stopped.
  • Page 75 '22 • SRK-T-362 (a) Inspection of electronic expansion valve (ii) (6P, white) (iii) (iv) • Inspection of electronic expansion valve as a separate unit Measuring point Resistance when normal (b) Outdoor fan motor check procedure unit unit source ② unit unit Measuring Voltage range when...

  • Page 76: Indoor Unit Disassembly Method

    '22 • SRK-T-362 11. INDOOR UNIT DISASSEMBLY METHOD (1) Remove the cover. (2) Remove the screw (The following 5 places).
  • Page 77 '22 • SRK-T-362 (3) Remove the cover. (4) Unplug the connector.
  • Page 78 '22 • SRK-T-362 (5) Unscrew. (6) Pull out control.
  • Page 79 '22 • SRK-T-362 SRK63-80ZR-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 80: Wireless Lan Interface Setting Manual

    '22 • SRK-T-362 12. 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 81 '22 • SRK-T-362 Preparation before connection Prepare the following items. Server Smartphone (tablet PC) Supported OS Android 8 to 10 iPhone 12 to 14 Internet line and communication equipment Smartphone (modem, router, ONU etc.) Application Router (wireless LAN access point) “Smart M-Air”...
  • Page 82 '22 • SRK-T-362 (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 83 '22 • SRK-T-362 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 84 '22 • SRK-T-362 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 85 '22 • SRK-T-362 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 86 '22 • SRK-T-362 (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 87 '22 • SRK-T-362 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 88 '22 • SRK-T-362 (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 89 '22 • SRK-T-362 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 90 '22 • SRK-T-362 (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 91: Option Parts 13. Application Operation Manual

    '22 • SRK-T-362 13. APPLICATION OPERATION MANUAL Smart M-Air Operation Manual [EN] RKZ012A107D RKZ012A107...
  • Page 92 '22 • SRK-T-362 Table of contents Application features ..............Manipulation modes ..............Remote operation mode ..............95 Home restricted mode ..............95 Demo mode ..................95 Preparation for use ............... Smartphone setting ................ 96 Application initial setting ..............96 Creating user account ..............
  • Page 93 '22 • SRK-T-362 Setting Weekly Timer ..............Setting Timer by Specifying Date via Calendar ....... Clear the timer set from the calendar ..........124 Displaying Electricity Bill Graph ..........(10) Updating Firmware ..............(11) Main Menu ..................Canceling demo mode ..............

  • Page 94: Application Features

    '22 • SRK-T-362 (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 95 '22 • SRK-T-362 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 96: Manipulation Modes

    '22 • SRK-T-362 (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 97: Preparation For Use

    '22 • SRK-T-362 (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 98 '22 • SRK-T-362 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 99: Creating User Account

    '22 • SRK-T-362 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 100: Superlink E Board (Sc-Adna-E)

    '22 • SRK-T-362 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 101 '22 • SRK-T-362 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 102: Registering Air Conditioner

    '22 • SRK-T-362 • 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. The air conditioner name ( locations) displays Figure 3-12 the last 6 digits of the SSID on the label of the...

  • Page 103: Wireless Lan Settings Of Air Conditioner

    '22 • SRK-T-362 • 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 104 '22 • SRK-T-362 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 105: Naming Air Conditioner

    '22 • SRK-T-362 • 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 106 '22 • SRK-T-362 Figure 3-21 Enter a new air conditioner name and tap [YES]. Figure 3-22 Figure 3-23 - 16 -...

  • Page 107: Basic Usage

    '22 • SRK-T-362 (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 108: Changing Temperature

    '22 • SRK-T-362 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 109: Changing Fan Speed And Air Flow Direction

    '22 • SRK-T-362 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 110: Switching Vacant Property Mode

    '22 • SRK-T-362 • 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 111: Using Favourites

    '22 • SRK-T-362 (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 112 '22 • SRK-T-362 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 113 '22 • SRK-T-362 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 114 '22 • SRK-T-362 Enter the new favourite name and tap [YES]. Figure 5-6 Figure 5-7 - 24 -...

  • Page 115: Using Options

    '22 • SRK-T-362 (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 116: Shut-Off Reminder Alert

    '22 • SRK-T-362 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 117: Air Conditioner Error Notification

    '22 • SRK-T-362 ■ 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 118: Hi Temp/Low Temp Alert

    '22 • SRK-T-362 • 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 119: Watching Function

    '22 • SRK-T-362 • 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 120 '22 • SRK-T-362 ■ 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 121: Cooling Specific

    '22 • SRK-T-362 • 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 122: Setting Weekly Timer

    '22 • SRK-T-362 (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 123 '22 • SRK-T-362 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 124: Setting Timer By Specifying Date Via Calendar

    '22 • SRK-T-362 (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 125: Clear The Timer Set From The Calendar

    '22 • SRK-T-362 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 126 '22 • SRK-T-362 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 127: Displaying Electricity Bill Graph

    '22 • SRK-T-362 (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 128: Updating Firmware

    '22 • SRK-T-362 (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 129 '22 • SRK-T-362 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 130: Main Menu

    '22 • SRK-T-362 (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 131: Canceling Demo Mode

    '22 • SRK-T-362 • Canceling demo mode In the demo mode Cancel demo : Exits the demo mode. Figure 11-2 - 41 -...

  • Page 132: Checking Alerts

    '22 • SRK-T-362 (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 133 '22 • SRK-T-362 Figure 12-3 - 43 -...

  • Page 134: Changing Application Settings

    '22 • SRK-T-362 (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 135: Switch Operation Modes

    '22 • SRK-T-362 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 136: Switching To "Home Restricted Mode

    '22 • SRK-T-362 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 137 '22 • SRK-T-362 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 138: Reset Password

    '22 • SRK-T-362 • 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 139 '22 • SRK-T-362 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 140: Language/Time Zone Settings

    '22 • SRK-T-362 • 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 141: Application Initialization

    '22 • SRK-T-362 • 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 142 '22 • SRK-T-362 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 143: Application Version Display

    '22 • SRK-T-362 • Application Version Display Displays the version of your smartphone application. Figure 13-17 - 53 -...

  • Page 144: Troubleshooting

    '22 • SRK-T-362 (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 145: How To Delete A Registered Air Conditioner

    '22 • SRK-T-362 • 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 146: When An Abnormality Notification Appears In The Air Conditioner List

    '22 • SRK-T-362 • 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 147: When Operation Is Performed By Another Account

    '22 • SRK-T-362 • 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 148: Option Parts

    '22 • SRK-T-362 14. OPTION PARTS (1) Wired remote control PJZ012A171 (a) Model RC-EX3A 1 ）Safety precautions 　 ●Please read this manual carefully before starting installation work to install the unit properly. Every one of the followings is important information to be observed strictly. Failure to follow these instructions properly may result in serious WARNING consequences such as death, severe injury, etc.
  • Page 149 '22 • SRK-T-362 　 WARNING Do not install the unit in appropriate environment or where inflammable gas could generate, flow in, accumulate or leak. t f I s i t c a l s n i l i o , t s i v l o , r o corrosive gas (ammonium, sulfuric compound, acid, etc) or where acidic or alkaline...
  • Page 150 '22 • SRK-T-362 　 CAUTION Do not install the remote control at following places. i t a r t n . l o ・Where it is exposed to direct sunlight ・Where the ambient temperature becomes 0 ° C or below, or 40 ° C or above ・...
  • Page 151 '22 • SRK-T-362 2 ）Accessories & prepare on site 　 Following parts are provided. Accessories R/C main unit, wood screw (φ3.5 x 16) 2 pcs., Quick reference Following parts are arranged at site. Prepare them according to the respective installation procedures. When the cable length is longer than 100 m, Item name Q’ty...
  • Page 152 '22 • SRK-T-362 　 4）Installation procedure Perform installation and wiring work for the remote control according to the PCB side (Viewed from rear) following procedure. Dimensions (Viewed from front) Fixing holes 固定穴 センサー 端子 Sensor USB port Terminal block To disassemble the R/C case into the upper and lower pieces after assembling them once ess at the lower part of R/C and twist it lightly to remove.
  • Page 153 ブッ シング パテで シール する こ と '22 • SRK-T-362 　 リ モコ ン配線 ③ Connect wires from X and Y terminals of R/C to X and Y terminals of indoor unit. R/C wires (X, Y) have no polarity. Fix wires such that the wires will run around the terminal screws on the top case of R/C.
  • Page 154 '22 • SRK-T-362 　 5） Main/Sub setting when more than one remote control are used ○ : operable ×: not operable Up to two units of R/C can be used R/C operations Main Sub R/C operations Main Sub ○ Service Installation Installation date ×...
  • Page 155 '22 • SRK-T-362 PJA012D730 (b) Model RC-E5 Installation manual for wired remote controller Connect the remote con terminal block. Connect the terminal of r Read together with indoor unit's installation manual. with the terminal of indoo (X and Y are no polarity) WARNING Wiring route is as shown Fasten the wiring to the terminal securely and hold the cable securely so as not to apply unexpected stress on the...
  • Page 156 '22 • SRK-T-362 ote controller Connect the remote control cord to the Sheath Sheath The range of temperature settin terminal block. When shipped, the range of set te Connect the terminal of remote control (X,Y) Upper case Upper case Board Board Heating : 16 ~ 30˚C (55 ~ 86˚F with the terminal of indoor unit (X,Y).
  • Page 157 '22 • SRK-T-362 PJA012D730 Sheath The range of temperature setting When shipped, the range of set temperature differs depending on the operation mode as below. Upper case Board Heating : 16-30˚C (55-86˚F) Except heating (cooling, fan, dry, automatic) : 18-30˚C (62-86˚F) Upper limit and lower limit of set temperature can be changed with remote control.
  • Page 158 '22 • SRK-T-362 The functional setting The initial function setting for typical using is performed automatically by the indoor unit connected, when remote Note 1: The initial setting marked “ ” is decided by connected indoor and outdoor unit, and is automatically defined as following table. control and indoor unit are connected.
  • Page 159 PJA012D73 '22 • SRK-T-362 PJA012D730 ned as following table. omatically defined as following table. Operation message How to set function Operation message How to set function Function description: ndoor unit. Function description: Function No. Stop air-conditioner and press (SET) (MODE) setting description: Function No.
  • Page 160 '22 • SRK-T-362 '17 • SRK-T-211 (c) Operation and setting from wired remote control Blank：Not compatible −：No function on remote control ○：Correspondence △：Corresponding part Setting ＆ display item Description RC-EX3A RC-E5 1.Remote control network 1 Control plural indoor units by a single remote control A remote control can control plural indoor units up to 16 (in one group of remote control network).
  • Page 161 '22 • SRK-T-362 Setting ＆ display item Description RC-EX3A RC-E5 2 Administrator settings Permission/Prohibition setting ・Permission/Prohibition setting of operation can be set. [On/Off] [Change set temp] [Change operation mode] [Change flap direction] [Change fan speed] [High power operation] [Energy-saving operation] [Timer] [Administrator password] ○...
  • Page 162 '22 • SRK-T-362 Setting ＆ display item Description RC-EX3A RC-E5 IU address Max 16 indoor units can be connected to one remote control, and all address No. of the connected indoor units can be displayed. 4 Service & Maintenance ・ The indoor unit conforming to the address No. can be identified by selecting the address No. and tapping [Check] to ○...

  • Page 163: Interface Kit (Sc-Bikn2-E)

    '22 • SRK-T-362 (2) Interface kit (SC-BIKN2-E) ※ When RC-EX3A is connected, please use SC-BIKN2-E by all means. RKZ012A099 Accessories included in package Safety precautions Before use, please read these Safety precautions thoroughly before installation. Be sure to check all the accessories included in package. ●All the cautionary items mentioned below are important safety related items to be taken into consideration, so be sure to observe them at all times.
  • Page 164 '22 • SRK-T-362 Installation of the interface ・Install the interface within the range of the connection cable length (approximately 1.3m) from the indoor unit. Wiring inlet ・Be sure not to extend the connection cable on site. If the connection cable is extended, malfunction may occur. ・Fix the interface on the wall, pillar or the like.
  • Page 165 '22 • SRK-T-362 Functions of CnT connector It is available to operate the air-conditioner and to monitor the operation status with the external control unit (remote display) by sending the input/output signal through CnT connector on the indoor control PCB. Note (1) 0.3mm 0.75mm ×2m...
  • Page 166 '22 • SRK-T-362 Connection of wired remote control Regarding the connection of wired remote control, refer to the installation manual of wired remote control. ①Switch ON the DIP switch SW2-2 (Factory setting : ON) on the interface PCB. DIP switch Caution:Wireless remote control attached to the indoor unit can be used in parallel, after connecting the wired remote control.

  • Page 167: Technical Information (3) Superlink E Board (Sc-Adna-E)

    '22 • SRK-T-362 (3) Superlink E board (SC-ADNA-E) PJZ012D029K...
  • Page 168 '22 • SRK-T-362 cores cores cores cores cores make cores cores...

  • Page 169: Technical Information

    Name and address of the manufacturer or of its authorised representative. more information (EU) MHIAE SERVICES B.V. Herikerbergweg 238, Luna ArenA, 1101 CM Amsterdam, Netherlands. P.O.Box 23393 1100 DW Amsterdam, Netherlands (UK) Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd 5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET,United Kingdom RWA000Z267...
  • Page 170 Name and address of the manufacturer or of its authorised representative. more information (EU) MHIAE SERVICES B.V. Herikerbergweg 238, Luna ArenA, 1101 CM Amsterdam, Netherlands. P.O.Box 23393 1100 DW Amsterdam, Netherlands (UK) Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd 5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET,United Kingdom RWA000Z267...
  • Page 171 Name and address of the manufacturer or of its authorised representative. more information (EU) MHIAE SERVICES B.V. Herikerbergweg 238, Luna ArenA, 1101 CM Amsterdam, Netherlands. P.O.Box 23393 1100 DW Amsterdam, Netherlands (UK) Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd 5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET,United Kingdom RWA000Z267...

  • Page 172: Reference

    '22 • SRK-T-362 16. REFERENCE (1) Outline 1-1) R32 as the alternative refrigerant for residential air-conditioners As for the R410A refrigerant which we have been usually using for air-conditioners, in case of emissions into the atmo- sphere, we have been adopting the collection of refrigerant etc. in order to restrain the world from global warming. Based on the 4th basic ecological plan, it is said that the amount of emission of the green house effect gases including the refrigerants which are being used for air-conditioners shall be reduced 80% by 2050, emissions of any kind of freon gases which have especially high global warming coefficient must be reduced much more.
  • Page 173 '22 • SRK-T-362 Table2 Comparison of saturated vapour pressure (MPa) Refrigerant R410A Temperature [°C] 0.30 0.30 0.14 0.71 0.70 0.40 1.37 1.35 0.81 2.38 2.32 1.43 3.84 3.73 2.33 4.29 4.17 2.60 1-3) Combustion charactaristic R32 is possible to combust slightly when following conditions (gas density and ignition energy) coincide. a) Combustible gas density by mixture with the air In the event that if the ignition source which is possible to ignite is within the gas density mentioned in table 3, R32 might combust.
  • Page 174 '22 • SRK-T-362 (2) Cautions for safety 2-1) Transport of equipment containing flammable refrigerants It is necessary to follow the applicable transport regulations during the transportation with respect to equipment containing flammable gas. 2-2) Marking of equipment using signs All required signs are to be maintained and employers should ensure that employees receive suitable and sufficient instruc- tion and training on the meaning of appropriate safety signs and the actions that need to be taken in connection with these signs.
  • Page 175 '22 • SRK-T-362 (3) General 3-1) The following information shall be specified in the manual where the information is needed for the function of the manual and as applicable to the appliance: (a) Information for spaces where refrigerant pipes are allowed, including statements •...
  • Page 176 '22 • SRK-T-362 ►Checks to the area Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ig- nition is minimised. For repair to the refrigerating system, following precautions shall be taken prior to conducting work on the system. ►Work procedure Work shall be undertaken under a controlled procedure so as to minimise the risk of a flammable gas or vapour being present while the work is being performed.
  • Page 177 '22 • SRK-T-362 The following checks shall be applied to installations using flammable refrigerants including R32: – The charge size is in accordance with the room size within which the refrigerant containing parts are installed; – The ventilation machinery and outlets are operating adequately and are not obstructed; –...
  • Page 178 '22 • SRK-T-362 ►Cabling (1) Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.
  • Page 179 '22 • SRK-T-362 ►Charging procedures In addition to conventional charging procedures, the following requirements shall be followed. – Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimise the amount of refrigerant contained in them. –...
  • Page 180 '22 • SRK-T-362 ►Recovery When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge are available.
  • Page 181 MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. 2-3, Marunouchi 3-chome, Chiyoda-ku, Tokyo, 100-8332, Japan http://www.mhi-mth.co.jp/en/ 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.

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