Mitsubishi SRK63ZM-S Technical Manual
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Mitsubishi SRK63ZM-S Technical Manual

Inverter wall mounted type residential air-conditioners (split system, air to air heat pump type)
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TECHNICAL MANUAL
INVERTER WALL MOUNTED TYPE
RESIDENTIAL AIR-CONDITIONERS
(Split system, air to air heat pump type)
SRK63ZM-S
71ZM-S
80ZM-S
Manual No.'13•SRK-T-142
updated September 26 ,2013

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Summary of Contents for Mitsubishi SRK63ZM-S

  • Page 1 Manual No.'13•SRK-T-142 updated September 26 ,2013 TECHNICAL MANUAL INVERTER WALL MOUNTED TYPE RESIDENTIAL AIR-CONDITIONERS (Split system, air to air heat pump type) SRK63ZM-S 71ZM-S 80ZM-S...

  • Page 2: Table Of Contents

    '10 • SRK-T-105 '13 • SRK-T-142 CONTENTS 1. SPECIFICATIONS ..................2. EXTERIOR DIMENSIONS ................. (1) Indoor units ..................(2) Outdoor units ..................(3) Remote control ..................3. ELECTRICAL WIRING ................10 (1) Indoor units ..................10 (2) Outdoor units ..................11 4.
  • Page 3 '13 • SRK-T-135 '13 • SRK-T-142 (2) Items to check before troubleshooting ..........58 ..58 (3) Troubleshooting procedure (If the air conditioner does not run at all) ..... 59 (4) Troubleshooting procedure (If the air conditioner runs) (5) Self-diagnosis table ................

  • Page 4: Specifications

    '13 • SRK-T-142 1. SPECIFICATIONS SRK63ZM-S Model Indoor unit SRK63ZM-S Outdoor unit SRC63ZM-S Item Power source Single phase, 220 - 240V, 50Hz Nominal cooling capacity (range) 6.3 ( 2.15 (Min.) - 7.1 (Max.)) Nominal heating capacity (range) 7.1 ( 1.7 (Min.) - 9.5 (Max.)) Cooling 1.76 ( 0.54 - 2.30 )
  • Page 5 '13 • SRK-T-142 SRK71ZM-S Model Item Indoor unit SRK71ZM-S Outdoor unit SRC71ZM-S Power source Single phase, 220 - 240V, 50Hz Nominal cooling capacity (range) 7.1 ( 2.15 (Min.) - 8.0 (Max.)) Nominal heating capacity (range) 8.0 ( 1.6 (Min.) - 10.0 (Max.)) Cooling 2.16 ( 0.54 - 2.80 ) Power...
  • Page 6 '13 • SRK-T-142 SRK80ZM-S Model Item Indoor unit SRK80ZM-S Outdoor unit SRC80ZM-S Power source Single phase, 220 - 240V, 50Hz Nominal cooling capacity (range) 8.0 ( 2.15 (Min.) - 8.5 (Max.)) Nominal heating capacity (range) 9.0 ( 1.7 (Min.) - 10.5 (Max.)) Cooling 2.65 ( 0.54 - 3.00 ) Power...

  • Page 7: Exterior Dimensions

    1090 Symbol Content 43.5 Gas piping φ15.88(5／8")(Flare) Liquid piping φ6.35(1／4")(Flare) Hole on wall for right rear piping (φ65) Hole on wall for left rear piping (φ65) Drain hose VP16 Outlet for wiring Outlet for piping（on both side） 1098 Wireless remote control Outlet for down piping （Refer to the above view）...

  • Page 8: Outdoor Units

    Symbol Content Service valve connection(gas side) φ15.88(5／8")(Flare) Note Service valve connection(liquid side) φ6.35(1／4")(Flare) （1）It must not be surrounded by walls on four sides. Pipe／cable draw-out hole （2）The unit must be fixed with anchor bolts. An anchor bolt Drain discharge hole φ20 x 3 places must not protrude more than 15mm.

  • Page 9: Remote Control

    '13 • SRK-T-142 (3) Remote control (a) Wireless remote control Unit : mm...
  • Page 10 '13 • SRK-T-142 (b) Wired remote control (option parts) Interface kit (SC-BIKN-E) is required to use the wired remote control. 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...

  • Page 11: Electrical Wiring

    Item Description CNE-CNX2 Connector Fan motor DISPLAY Flap motor WIRELESS RECEIVER CNX1 Louver motor BACK-UP SW Room temp. sensor PRINTED CIRCUIT Heat exch. sensor BOARD Humidity sensor Diode stack CNX2 Fuse Terminal block Varistor INTERFACE KIT SC-BIKN-E Color Marks Mark Color Y／G Black...

  • Page 12: Outdoor Units

    POWER SOURCE ～220-240V 50Hz TERMINAL PCB ASSY （MAIN） PCB ASSY （SUB） BLOCK POWER TRANSISTOR FUSE （BK） （BK） （RD） 250V 20A （BK） ACTIVE 250V 20A 250V 20A （WH） （WH） FILTER （WH） 3～ UNIT （Y／G） （Y／G） （BK） （RD） （WH） TERMINAL （BK） CNMAIN CNSUB BLOCK （BR）...

  • Page 13: Noise Level

    '13 • SRK-T-142 4. NOISE LEVEL (1) Model SRK63ZM-S Condition ISO-T1,JIS C 9612 (a) Reted capacity value Mike position (Indoor Unit) 0.8m Model SRK63ZM-S Unit Mike position Noise Cooling 47 dB(A) (Center & Low points) Level Heating 44 dB(A) × ..Cooling...
  • Page 14 '13 • SRK-T-142 Condition ISO-T1,JIS C 9612 (b) Max value in Hi MODE Mike position ● (Indoor Unit) Model SRK63ZM-S 0.8m Unit Mike position Noise Cooling 47 dB(A) (Center & Low points) Level Heating 44 dB(A) × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...
  • Page 15 '13 • SRK-T-142 (c) Max value in Me MODE Condition ISO-T1,JIS C 9612 (Indoor Unit) Mike position ● Model SRK63ZM-S Noise Cooling 43 dB(A) 0.8m Unit Level Mike position Heating 41 dB(A) (Center & Low points) × ..Cooling Heating Mike position: at highest noise level in position as mentioned below ●...
  • Page 16 '13 • SRK-T-142 (d) Max value in Lo MODE Condition ISO-T1,JIS C 9612 Mike position (Indoor Unit) ● Model SRK63ZM-S 0.8m Cooling 37 dB(A) Noise Unit Mike position Level Heating 36 dB(A) (Center & Low points) × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...
  • Page 17 '13 • SRK-T-142 (e) Max value in ULo MODE Condition ISO-T1,JIS C 9612 Mike position (Indoor Unit) ● Model SRK63ZM-S 0.8m Cooling 26 dB(A) Noise Unit Mike position Level Heating 33 dB(A) (Center & Low points) × ..Cooling Heating Mike position: at highest noise level in position as mentioned below ●...
  • Page 18 '13 • SRK-T-142 (2) Model SRK71ZM-S Condition ISO-T1,JIS C 9612 (a) Reted capacity value Mike position (Indoor Unit) Model SRK71ZM-S 0.8m Unit Cooling 49 dB(A) Noise Mike position (Center & Low points) Level Heating 46 dB(A) × ..Cooling Heating (Outdoor Unit) Mike position: at highest noise level in position as mentioned below Model...
  • Page 19 '13 • SRK-T-142 Condition ISO-T1,JIS C 9612 (b) Max value in Hi MODE Mike position ● (Indoor Unit) Model SRK71ZM-S 0.8m Unit Noise Cooling 49 dB(A) Mike position (Center & Low points) Level Heating 46 dB(A) × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...
  • Page 20 '13 • SRK-T-142 (c) Max value in Me MODE Condition ISO-T1,JIS C 9612 (Indoor Unit) Mike position ● Model SRK71ZM-S 0.8m Noise Cooling 45 dB(A) Unit Mike position Level Heating 43 dB(A) (Center & Low points) × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...
  • Page 21 '13 • SRK-T-142 (d) Max value in Lo MODE Condition ISO-T1,JIS C 9612 (Indoor Unit) Mike position ● Model SRK71ZM-S 0.8m Cooling 39 dB(A) Noise Unit Mike position Level Heating 38 dB(A) (Center & Low points) × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...
  • Page 22 '13 • SRK-T-142 (e) Max value in ULo MODE Condition ISO-T1,JIS C 9612 (Indoor Unit) Mike position ● Model SRK71ZM-S 0.8m Cooling 26 dB(A) Noise Unit Mike position Level Heating 35 dB(A) (Center & Low points) × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...
  • Page 23 '13 • SRK-T-142 (3) Model SRK80ZM-S Condition ISO-T1,JIS C 9612 (a) Reted capacity value Mike position (Indoor Unit) 0.8m Model SRK80ZM-S Unit Mike position Noise Cooling 51 dB(A) (Center & Low points) Level Heating 48 dB(A) × ..Cooling Heating (Outdoor Unit) Mike position: at highest noise level in position as mentioned below Model...
  • Page 24 '13 • SRK-T-142 Condition ISO-T1,JIS C 9612 (b) Max value in Hi MODE Mike position ● (Indoor Unit) Model SRK80ZM-S 0.8m Unit Mike position Noise Cooling 51 dB(A) (Center & Low points) Level Heating 48 dB(A) × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...
  • Page 25 '13 • SRK-T-142 (c) Max value in Me MODE Condition ISO-T1,JIS C 9612 Mike position ● (Indoor Unit) Model SRK80ZM-S 0.8m Cooling 47 dB(A) Noise Unit Mike position Level Heating 45 dB(A) (Center & Low points) × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...
  • Page 26 '13 • SRK-T-142 (d) Max value in Lo MODE Condition ISO-T1,JIS C 9612 Mike position ● (Indoor Unit) Model SRK80ZM-S 0.8m Cooling 41 dB(A) Unit Noise Mike position (Center & Low points) Level Heating 40 dB(A) × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...
  • Page 27 '13 • SRK-T-142 (e) Max value in ULo MODE Condition ISO-T1,JIS C 9612 Mike position ● (Indoor Unit) Model SRK80ZM-S 0.8m Cooling 26 dB(A) Noise Unit Mike position Level Heating 37 dB(A) (Center & Low points) × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...

  • Page 28: Piping System

    '13 • SRK-T-142 5. PIPING SYSTEM Models SRK63ZM-S, 71ZM-S, 80ZM-S Cooling cycle Heating cycle Indoor unit Outdoor unit Outdoor air Flare temp. sensor connection Service valve (TH2) (Gas) Discharge pipe temp. sensor Gas pipe Check joint Heat (TH3) ( 15.88)

  • Page 29: Range Of Usage & Limitations

    '13 • SRK-T-142 6. RANGE OF USAGE & LIMITATIONS Models SRK63ZM-S,71ZM-S,80ZM-S Item Cooling operation : Approximately 18 to 32 D.B. Indoor return air temperature Heating operation : Approximately 10 to 30 D.B. (Upper, lower limits) (Refer to the selection chart) Cooling operation : Approximately -15 to 46 D.B.
  • Page 30 (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 SRK63ZM-S 6.2k SRK63ZM-S...

  • Page 31: Capacity Tables

    '13 • SRK-T-142 Adapted to RoHS directive 7. CAPACITY TABLES Model SRK63ZM-S Cooling Mode (kW) Heating Mode (HC) (kW) Indoor air temp Indoor air temp Outdoor 21˚CDB 23˚CDB 26˚CDB 27˚CDB 28˚CDB 31˚CDB 33˚CDB Air flow Outdoor air temp. Air flow air temp.

  • Page 32: Application Data

    8. APPLICATION DATA WALL TYPE AIR CONDITIONER RKW012A411 R410A REFRIGERANT USED (1) Installation of indoor unit WARNING INSTALLATION MANUAL FOR INDOOR UNIT • Do not vent R410A into the atmosphere : R410A is a fluorinated • Do not perform any change of protective device itself or its setup greenhouse gas, covered by the Kyoto Protocol with Groval condition.

  • Page 33: Selection Of Installation Location

    seriously affect the user’s health and safety. This can also cause the insulation and over-current etc. • Locations where an equipment affected by high harmonics is placed (TV • Do not touch any refrigerant pipes with your hands when the corrosion of the indoor unit and a resultant unit failure or refrigerant leak.

  • Page 34: Connection Of Refrigerant Pipings

    RKW012A411 Fixing of indoor unit Since this air conditioner has been designed to collect dew drops on the rear Gutter surface to the drain pan, do not attach the power cord above the gutter. • How to remove the indoor unit from the installation board Latch (2 locations) Installation Steps Wall...
  • Page 35 ○Installing shown in right illustration and pull it toward you. ① Remove the air filter. ○ To install, insert the panel arm into the slot on the ② Cover the unit with the front panel. Approx. 80 front panel from the position shown in right Front panel To remove / To install ③...

  • Page 36: Installation Of Outdoor Unit

    (2) Installation of outdoor unit RCR012A002 Notabilia as a unit designed for R410A INSTALLATION MANUAL FOR OUTDOOR UNIT • Do not use any refrigerant other than R410A. R410A will ris A cylinder containing R410A has a pink indication mark on t R410A REFRIGERANT USED •...
  • Page 37 • Where it is likely that the unit is subjected to strong win • Ensure that no air enters in the refrigerant circuit when the unit is • Do not bundling, winding or processing for the power cord. Or, do not •...

  • Page 38: Refrigerant Piping Work

    Accordingly, you are required to arrange dedicated R410A tools listed in the table on the left before installing or servicing this unit. ts, power • Do not use a charge cylinder. The use of a charge cylinder will cause the refrigerant composition to change, which results in performance degradation. •...
  • Page 39 [Refer to Drain piping work.] • In installing the unit, fix the unit’s legs with bolts specified on the above. • The protrusion of an anchor bolt on the front side must be kept within 15mm. nd small • Securely install the unit so that it does not fall over during earthquakes or strong winds, etc. •...
  • Page 40 • Bend a pipe to a radius as large as practical (R100 R150). Do not bend a pipe repeatedly to correct its form. Copper pipe protrusion for flaring : B (mm) • Flare connection is used between the unit and refrigerant pipe. Flare a pipe after 4.
  • Page 41 Additional charge volume (kg) = { Main length (m) – Factory charged volume 15 (m) } x 0.025 (kg/m) • When refrigerant is charged with the unit being run, complete a charge operation within 30minutes. Running the unit with an insufficient quantity of refrigerant for a long time can cause a compressor failure. * When an additional charge volume calculation result is negative, it is not necessary to charge refrigerant Power cable Indoor - Outdoor...
  • Page 42 unit • When cables are connected, make sure that all electrical components within the electrical component box are free of loose connector coupling or (yellow/green) terminal connection and then attach the cover securely. (Improper cover attachment can result in malfunctioning or a failure of the unit, if water Section of copper wire (mm penetrates into the box.) •...

  • Page 43: Outline Of Operation Control By Microcomputer

    '13 • SRK-T-142 9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Operation control function by wireless remote control Operation section Transmission section OPERATION MODE select button ON/OFF (luminous) button Each time the button is pressed, the mode changes. Press to start operation, press again to stop.

  • Page 44: Unit On/Off Button

    '13 • SRK-T-142 '09•SRK-DB-087D (2) Unit ON/OFF button wireless wireless (a) Operation (b) Details of operation Function Indoor temperature Fan speed Flap/Louver Timer Switch setting Operation mode COOL Unit ON/OFF button HEAT (3) Auto restart function Jumper wire (J170) (ii) (J170) (4) Installing two air conditioners in the same room When tow air conditioners are installed in the room, use setting when the two air conditioners are not operated with one wireless...

  • Page 45: Selection Of The Annual Cooling Function

    '13 • SRK-T-142 (5) Selection of the annual cooling function (a) The annual cooling function can be enabled or disabled by means of the jumper wire (J172) on the indoor unit PCB and the dip switch (SW2-4) on the interface kit (optional) PCB. Interface kit Jumper wire (SC-BIKN-E)

  • Page 46: Flap And Louver Control

    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. '13 • SRK-T-142 ② When the operation mode is changed DRY to FAN. (c) Not operable while the air-conditioner is OFF.

  • Page 47: Auto Operation

    display Center installation Left Approx. 50° Left Approx. 20° Center Right Approx. 20° Right Approx. 50° '13 • SRK-T-142 (c) Swing (ii) In HEAT operation In COOL, DRY, FAN operation Approx. 5° Approx. 35° Approx. 60° Approx. 80° (c) Memory flap (Flap or Louver stopped) '09•SRK-DB-087D (d) When not operating (9) 3D auto operation...

  • Page 48: Timer Operation

    Cooling Heating '13 • SRK-T-142 Flap Up/down swing Center (Fixed) Louver Cooling Heating Flap Horizontal blowing (Fixed) Slant forwardl blowing (Fixed) Wide (Fixed) Louver Operation mode Air flow direction contorol Indoor temp. – Setting temp. 2°C < = 2°C < Indoor temp. – Setting temp. 5°C <...

  • Page 49: Installation Location Setting

    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 SRK63ZM-S SRK71ZM-S SRK80ZM-S Fan speed 20~106rps 20~116rps 20~120rps AUTO 20~106rps 20~116rps...
  • Page 50 Indoor fan motor Outdoor fan motor (few minutes ON) '13 • SRK-T-142 4-way valve (3 minutes ON) (b) Details of control at each operation mode (pattern) Fuzzy operation Model SRK63ZM-S SRK71ZM-S SRK80ZM-S Fan speed AUTO 20~106rps 20~116rps 20~120rps 20~106rps 20~116rps...

  • Page 51: Outline Of Cooling Operation

    (b) Detail of control in each mode (Pattern) (b) Detail of control in each mode (Pattern) (b) Detail of control in each mode (Pattern) Fuzzy operation Fuzzy operation Fuzzy operation Model Model SRK63ZM-S SRK71ZM-S SRK80ZM-S Model SRK63ZM-S SRK71ZM-S SRK80ZM-S Fan speed...

  • Page 52: Protective Control Function

    Compressor’s command speed is 28 rps or higher. Detected value of humidity is 68% or higher. (ii) Contents of operation Air capacity control Model SRK63ZM-S SRK71ZM-S SRK80ZM-S Item Upper limit of compressor’s command speed Range A: As per following table, Range B: 40 rps...
  • Page 53 '13 • SRK-T-142 '09•SRK-DB-087D (iii) Resetting condition: When any of followings is met Compressor’s command speed is less than 28 rps. Detected value of humidity is less than 63%. (b) Frost prevention control Operating conditions compressor command speed (ii) Detail of anti-frost operation Lower limit Indoor heat exchanger...
  • Page 54 '09•SRK-DB-087D '09•SRK-DB-087D '13 • SRK-T-142 (e) Cooling low outdoor air temperature protective control Operating conditions: (ii) Detail of operation: than 40 (30) rps, the speed is kept to 40 (30) rps. However, when the thermo OFF,the speed is 60 75 becomes 60 75 Upper limit 60 rps...
  • Page 55 RPSmin < 40 Reset conditions: 40 < = RPSmin < 80 80 < = RPSmin < 90 53 ~ 47 57 ~ 51 59 ~ 53 90 < = RPSmin < 102 47 ~ 41 51 ~ 45 53 ~ 47 '13 •...
  • Page 56 Reset conditions: When either of the following condition is satisfied. When either of the following condition is satisfied. Reset conditions: The outdoor air temperature (TH2) becomes 6ºC. '13 • SRK-T-142 The outdoor air temperature (TH2) becomes 6ºC. The compressor command speed is 0 rps. The compressor command speed is 0 rps.
  • Page 57 '09•SRK-DB-087D '13 • SRK-T-142 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 temperature > 10˚C Outdoor temperature < = 10˚C Lower limit fan speed Outdoor fan Outdoor temperature >...
  • Page 58 Reset conditions: '13 • SRK-T-142 (ii) Heating Operating conditions: Detail of operation: Reset conditions: Refrigeration cycle system protection Starting conditions When 5 minutes have elapsed after the compressor ON or the completion of the defrost control Other than the defrost control When, after meeting the conditions of 1) and 2) above, the compressor speed, indoor air temperature (Th1) and indoor heat exchanger temperature (Th2) have met the conditions in the following table for 5 minutes: Indoor air temperature (Th1)/...

  • Page 59: Maintenance Data

    '09•SRK-DB-087D '13 • SRK-T-142 Reference Reference 10. MAINTENANCE DATA 2 TROUBLESHOOTING PROCEDURES FOR ELECTRICAL EQUIPMENT (1) Cautions (2) Items to check before troubleshooting (3) Troubleshooting procedure (If the air conditioner does not run at all) Important wireless proced-...

  • Page 60: Troubleshooting Procedure (If The Air Conditioner Runs)

    '09•SRK-DB-087D '13 • SRK-T-142 (4) Troubleshooting procedure (If the air conditioner runs) 61 ~ 67. 61 ~ 67.

  • Page 61: Self-Diagnosis Table

    '09•SRK-DB-087D '13 • SRK-T-142 (5) Self-diagnosis table Wired Outdoor Indoor unit display panel remote Description control PCB Cause Display (flashing) condition control TIMER of trouble Red LED display light light • Broken heat exchanger sensor When a heat exchanger sensor 1 wire disconnection is detected while 1-time operation is stopped.

  • Page 62: Service Mode (Trouble Mode Access Function)

    '09•SRK-DB-087D '13 • SRK-T-142 (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 controller. These are the contents of error displays and protective stops which occurred in the past in the air conditioner system.
  • Page 63 '09•SRK-DB-087D '13 • SRK-T-142 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 64 '09•SRK-DB-087D '13 • SRK-T-142 (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 65 '09•SRK-DB-087D '13 • SRK-T-142 (c) Error code, stop code table Number of flashes when in service mode Stop coad Error Auto TIMER Error content Cause Occurrence conditions display recovery light Error coad light (10's digit) (1's digit) Normal Can not receive signals for 35 Power supply is faulty.
  • Page 66 '09•SRK-DB-087D '13 • SRK-T-142 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 RUN light TIMER light...
  • Page 67 '09•SRK-DB-087D '13 • SRK-T-142 (e) Temperatare information Room temperature sensor, indoor heat exchanger sensor, outdoor air temperature sensor, outdoor heat exchanger sensor temperature Units: °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 Sensor name...
  • Page 68 '09•SRK-DB-087D '13 • SRK-T-142 (ii) Discharge pipe sensor temperature Units: °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 69 '09•SRK-DB-087D '13 • SRK-T-142 Service data record form Wireless r Operation mode Fan speed mode Wireless r Wireless r Wireless r Wireless r Wireless r wireless...

  • Page 70: Inspection Procedures Corresponding To Detail Of Trouble

    '09•SRK-DB-087D '13 • SRK-T-142 (7) Inspection procedures corresponding to detail of trouble Sensor error Broken sensor wire, connector poor connection Sensor temperature characteristics (Room Discharge pipe sensor temperature characteristics temp., indoor heat exchanger temp., out- door heat exchanger temp., outdoor air temp.) - 10 Temperature (˚C)

  • Page 71: Current Cut

    '09•SRK-DB-087D '13 • SRK-T-142 Current cut Compressor lock, Compressor wiring short circuit, Compressor output is open phase, Outdoor PCB is faulty, Service valve is closed, EEV is faulty, Compressor faulty. ＊   ＊ 1.155Ω (U-V), 1.133Ω (V-W), 1.174Ω (W-U) or more at 20ºC Current safe stop Overload operation, compressor lock, overcharge...
  • Page 72 '09•SRK-DB-087D '13 • SRK-T-142 Over heat of compressor Gas shortage, defective discharge pipe sensor Error of signal transmission Wiring error including power cable, defective indoor/ outdoor PCB ② ③ ② ③ ① ②...
  • Page 73 '09•SRK-DB-087D '13 • SRK-T-142 Trouble of outdoor unit Insufficient refregerant amount, Faulty power transistor, Broken compressor wire Service valve close, Defective EEV, Defective outdoor PCB ◆       Notes (1) wire Check coil wire resistance, see page 70. ． Outdoor fan motor error Defective fan motor, connector poor connection, defective outdoor PCB...

  • Page 74: 8) Phenomenon Observed After Shortcircuit, Wire Breakage On Sensor

    '13 • SRK-T-142 Rotor lock Defective compressor, defective outdoor PCB See page 70. Service valve (gas side) closed, Service valve (gas side) closed operation (8) Phenomenon observed after shortcircuit, wire breakage on sensor Defective outdoor PCB (a) Indoor unit Phenomenon Operation Sensor mode...

  • Page 75: Phenomenon Observed After Shortcircuit, Wire Breakage On Sensor

    '13 • SRK-T-142 (8) Phenomenon observed after shortcircuit, wire breakage on sensor (a) Indoor unit Phenomenon Operation Sensor mode Shortcircuit Disconnected wire Cooling Room temperature sensor Heating Freezing cycle system protection trips and stops the compressor. Cooling Heat exchanger sensor Heating Cooling Humidity sensor...
  • Page 76 Replace indoor PCB. blocks ② and ③ oscillating between DC 0 and 20V? '13 • SRK-T-142 Indoor electrical components are normal. (b) Indoor unit fan motor check procedure 1) Indoor PCB output check ① ④ ⑤ DC several V (–) DC 308~336V (4~6 V) Measuring...

  • Page 77: How To Make Sure Of Wireless Remote Control

    Operation SW ON Measure in this section '13 • SRK-T-142 (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 or camera of mobile phone.

  • Page 78: Outdoor Unit Inspection Points

    '13 • SRK-T-142 (12) Outdoor unit inspection points Models SRC63ZM-S, 71ZM-S, 80ZM-S ◆Check point of outdoor unit CAUTION- HIGH VOLTAGE ◆Power source and serial signal inspection High voltage is produced in the control box. Don't touch : AC 220/230/240V electrical parts in the control box for 5 minutes after the : AC 220/230/240V unit is stopped.
  • Page 79 '09•SRK-DB-087D '13 • SRK-T-142 (a) Inspection of electronic expansion valve (ii) (iii) (iv) • Inspection of electronic expansion valve as a separate unit Measuring point Resistance when normal (b) Outdoor unit fan motor check procedure          ② Measuring Voltage range when point normal...

  • Page 80: Option Parts

    '13 • SRK-T-142 11. OPTION PARTS Installation manual for wired remote controller PJA012D730 Connect the remote control cord (1) Wired remote control (RC-E5) terminal block. Connect the terminal of remote c Read together with indoor unit's installation manual. with the terminal of indoor unit (X (X and Y are no polarity) WARNING Wiring route is as shown in the r...
  • Page 81 '13 • SRK-T-142 mote controller Connect the remote control cord to the Sheath Sheath The range of temperature setting Upper Upper terminal block. When shipped, the range of set tempera Connect the terminal of remote control (X,Y) Upper case Upper case Board Board Heating : 16 ~ 30°C (55 ~ 86°F)
  • Page 82 '13 • SRK-T-142 PJA01 2D7 30 Sheath Sheath The range of temperature setting Upper When shipped, the range of set temperature differs depending on the operation mode as below. Upper case 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 83 '13 • SRK-T-142 The functional setting The initial function setting for typical using is performed automatically by the indoor unit connected, when remote control and indoor unit are connected. As long as they are used in a typical manner, there wiil be no need to change the initial settings. If you would like to change the initial setting marked “...
  • Page 84 '13 • SRK-T-142 Note 1: The initial setting marked “ ” is decided by connected indoor and outdoor unit, and is automatically defined as following table. Function No. Item Default Model "Auto-RUN" mode selectable indoor unit. Remote control function02 Indoor unit without "Auto-RUN" mode Indoor unit with two or three step of air flow setting Remote control function06...
  • Page 85 '13 • SRK-T-142 PJA 01 2D7 30 is automatically defined as following table. Operation message How to set function able indoor unit. Function description: Function No. Stop air-conditioner and press (SET) (MODE) setting description: -RUN" mode buttons at the same time for over three seconds, and the ree step of air flow setting "FUNCTION SET "...

  • Page 86: Interface Kit (Sc-Bikn-E)

    '13 • SRK-T-142 (2) Interface kit (SC-BIKN-E) RKZ012A088B 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 87 '13 • SRK-T-142 Installation of the interface ・Install the interface within the range of the connection cable length from the indoor unit. (approximately 1.8m) 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 88 '13 • SRK-T-142 Functions of CNT connector It is available to operate the air conditioning unit 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. 0.75mm Note (1) 0.3mm ×2m...
  • Page 89 '13 • SRK-T-142 Connection of wired remote control Regarding the connection of wired remote control, refer to the instruction manual of wired remote control. ①Switch ON the DIP switch SW2-2 (Factory setting : ON) on the interface PCB. DIP suitch Caution:Wireless remote control attached to the indoor unit can be used in parallel, after connecting the wired remote control.

  • Page 90: Super Link E Board (Sc-Adna-E)

    '13 • SRK-T-142 (3) Super link E board (SC-ADNA-E)
  • Page 91 '13 • SRK-T-142...

  • Page 92: Technical Information

    Rated air flow(outdoor) 2910 m3/h Contact details for obtaining Name and address of the manufacturer or of its authorised representative. more information Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd. 7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom RWA000Z251...

  • Page 93: Srk-T

    Rated air flow(outdoor) 3300 m3/h Contact details for obtaining Name and address of the manufacturer or of its authorised representative. more information Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd. 7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom RWA000Z251...
  • Page 94 Rated air flow(outdoor) 3780 m3/h Contact details for obtaining Name and address of the manufacturer or of its authorised representative. more information Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd. 7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom RWA000Z251...
  • Page 95 INVERTER WALL MOUNTED TYPE RESIDENTIAL AIR-CONDITIONERS Air-Conditioning & Refrigeration Systems 16-5, Konan 2-chome, Minato-ku, Tokyo, 108-8215 Japan http://www.mhi.co.jp Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. Copyright MITSUBISHI HEAVY INDUSTRIES, LTD.

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