Mitsubishi Heavy Industries SRK63ZR-S Technical Manual
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Mitsubishi Heavy Industries SRK63ZR-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

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Summary of Contents for Mitsubishi Heavy Industries SRK63ZR-S

  • Page 1 TECHNICAL MANUAL INVERTER WALL MOUNTED TYPE RESIDENTIAL AIR-CONDITIONERS...

  • Page 2: Table Of Contents

    '10 • SRK-T-105 '15 • SRK-T-175 CONTENTS 1. SPECIFICATIONS ..................2. EXTERIOR DIMENSIONS ................. (1) Indoor units ..................(2) Outdoor units ..................(3) Remote control ..................10 3. ELECTRICAL WIRING ................12 (1) Indoor units ..................12 (2) Outdoor units ..................
  • Page 3 '13 • SRK-T-135 '15 • SRK-T-175 10. MAINTENANCE DATA ................51 (1) Cautions ..................... 51 (2) Items to check before troubleshooting ..........51 ..51 (3) Troubleshooting procedure (If the air-conditioner does not run at all) ..... 52 (4) Troubleshooting procedure (If the air-conditioner runs) (5) Self-diagnosis table ................

  • Page 4: Specifications

    '15 • SRK-T-175 1. SPECIFICATIONS 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 SRK63ZR-S Model Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz n i l y t i ) ) . y t i ) ) . Heating capacity (H2) － n i l...
  • Page 5 '15 • SRK-T-175 Model SRK71ZR-S Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz n i l y t i ) ) . y t i ) ) . Heating capacity (H2) － n i l Power consumption Heating (H2) －...
  • Page 6 '15 • SRK-T-175 Model SRK80ZR-S Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz n i l y t i ) ) . y t i ) ) . Heating capacity (H2) － n i l Power consumption Heating (H2) －...

  • Page 7: Exterior Dimensions

    Symbol Content （ ／ ） （ Flare） SRK63 Gas piping （5／ ） （ Flare） （ ／ ） （ Flare） Liquid piping （ 65） Hole on wall for right rear piping （ 65） Hole on wall for left rear piping Drain hose Outlet for wiring （...

  • Page 8: Outdoor Units

    Notes Symbol Content （1） It must not be surrounded by walls on four sides. Service valve connection （ gas side） φ12.7 （ 1／2"） （ Flare） （2）The unit must be fixed with anchor bolts. An anchor bolt Service valve connection （ liquid side） φ6.35 （...
  • Page 9 Symbol Content Notes Service valve connection （ gas side） φ15.88 （ 5／8"） （ Flare） （1） It must not be surrounded by walls on four sides. Service valve connection （ liquid side） φ6.35 （ 1／4"） （ Flare） （2） The unit must be fixed with anchor bolts. An anchor bolt Pipe／cable draw-out hole must not protrude more than 15mm.
  • Page 10 Symbol Content Notes Service valve connection （ gas side） φ15.88 （ 5／8"） （ Flare） （1） It must not be surrounded by walls on four sides. Service valve connection （ liquid side） φ6.35 （ 1／4"） （ Flare） （2） The unit must be fixed with anchor bolts. An anchor bolt Pipe／cable draw-out hole must not protrude more than 15mm.

  • Page 11: Remote Control

    '15 • SRK-T-175 (3) Remote control (a) Wireless remote control Unit : mm...
  • Page 12 '15 • SRK-T-175 (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 13: Electrical Wiring

    Item Description Connector DISPLAY WIRELESS RECEIVER BACK-UP SW PRINTED CIRCUIT BOARD Fan motor Flap motor Louver motor Room temp. sensor Heat exchanger sensor Humidity sensor Diode stack INTERFACE KIT Fuse Terminal block Varistor Color Marks Mark Color HEAT F 3.15A Black EXCHANGER L 250V...

  • Page 14: Outdoor Units

    POWER SOURCE 1 Phase 220-240V 50Hz 220V 60Hz PCB ASSY PCB1 TERMINAL POWER BLOCK 1 （Y） （Y） ∼ ＋ TRANSISTOR （BK） （BK） R.IN （BL） （BL） （RD） 250V 20A （WH） S.IN （WH） ∼ − （Y／G） 3∼ （BK） （Y／G） 250V 20A （Y／G） （WH）...

  • Page 15: Noise Level

    '15 • SRK-T-175 4. NOISE LEVEL Condition ISO5151 T1 Model SRK63ZR-S MODE Rated capacity value Mike position ● (Indoor Unit) SRK63ZR-S Model 0.8m Unit Mike position 44 dB(A) Noise Cooling (Center & Low points) Level 44 dB(A) Heating × ..Cooling...
  • Page 16 '15 • SRK-T-175 Condition ISO5151 T1 MODE Rated capacity value Model SRK71ZR-S Mike position ● (Indoor Unit) SRK71ZR-S Model 0.8m Unit Mike position 44 dB(A) Noise Cooling (Center & Low points) Level 46 dB(A) Heating × ..Cooling Heating Mike position: at highest noise level in position as mentioned belo ●...
  • Page 17 '15 • SRK-T-175 Condition ISO5151 T1 Model SRK80ZR-S MODE Rated capacity value (Indoor Unit) Mike position ● SRK80ZR-S Model 47 dB(A) Noise Cooling 0.8m Unit Level 47 dB(A) Mike position Heating (Center & Low points) × ..Cooling Heating Mike position: at highest noise level in position as mentioned below ●...

  • Page 18: Piping System

    '15 • SRK-T-175 5. PIPING SYSTEM Model SRK63ZR-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 ( 12.7) (TH3) Humidity exchanger...
  • Page 19 '15 • SRK-T-175 Model SRK80ZR-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) Humidity exchanger sensor sensor (Th3) (Th2 4way valve Muffler...

  • Page 20: Range Of Usage & Limitations

    6. RANGE OF USAGE & LIMITATIONS 6. RANGE OF USAGE & LIMITATIONS Model SRK25ZJP-S1, 35ZJP-S1 SRK50ZJP-S1 SRK63ZR-S,71ZR-S,80ZR-S Item Cooling operation : Approximately 18 to 32℃ D.B. Indoor return air temperature Heating operation : Approximately 15 to 30℃ D.B. (Upper, lower limits) (Refer to the selection chart) Cooling operation : Approximately -15 to 46℃...
  • Page 21 (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-S 6.2k SRK63ZR-S...

  • Page 22: Capacity Tables

    '15 • SRK-T-175 7. CAPACITY TABLES Model SRK63ZR-S ling Mode (kW) ting Mode (kW) Indoor air temp. Outdoor Outdoor Indoor air temp. Air flow air temp. ℃DB ℃DB ℃DB ℃DB ℃DB ℃DB ℃DB Air flow air temp. ℃WB ℃ DB 18℃ DB 20℃ DB 22℃ DB 24℃ DB ℃WB...

  • Page 23: Application Data

    8. APPLICATION DATA RLD012A001 WALL TYPE AIR-CONDITIONER R410A REFRIGERANT USED (1) Installation of indoor unit CAUTION INSTALLATION MANUAL FOR INDOOR UNIT • Carry out the electrical work for ground lead with care. Do not connect the ground lead to the gas line, water line, lightning conductor or telephone line’s ground lead. Incorrect grounding can cause unit faults such as electric shocks due to short-circuiting.

  • Page 24: Selection Of Installation Location

    • Locations where an equipment affected by high harmonics is placed (TV • Do not touch any refrigerant pipes with your hands when the system If air enters in the refrigerant circuit, the pressure in the refrigerant circuit Touching rotating equipments, hot surfaces or high voltage parts can set or radio receiver is placed within 1m).

  • Page 25: Connection Of Refrigerant Pipings

    RLD012A001 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 Pass the pipe through...
  • Page 26 ○ To remove, pull up the panel to the position shown in ○ Installing right illustration and pull it toward you. Remove the air filter. Front panel ○ To install, insert the panel arm into the slot on the front Approx.

  • Page 27: Installation Of Outdoor Unit

    RCR012A200C (2) Installation of outdoor unit Note as a unit designed INSTALLATION MANUAL FOR OUTDOOR UNIT • Do not use any refrigerant oth Model 63 ·71 ·80 A cylinder containing R410A h R410A REFRIGERANT USED • A unit designed for R410A has The processed dimension of th •...

  • Page 28: Haulage And Installation

    installed at a place where i • Do not process or splice the power cord, or share the socket with other power plugs. Touching rotating equipments, hot surfaces or high voltage parts can cause burst. • A place where strong wind This may cause fire or electric shock due to defecting contact, defecting insulation personal injury due to entrapment, burn or electric shocks.

  • Page 29: Refrigerant Piping Work

    • All indoor units must be models designed exclusively for R410A. Check connectable indoor unit models in a catalog, etc. (A wrong indoor unit, if connected into the system, will impair proper system operation) time. 1. HAULAGE AND INSTALLATION (Take particular care in carrying in or moving the unit, and always perform such an operation with two or more persons.) ) should When a unit is hoisted with slings for haulage, take into consideration the offset of its gravity center position.
  • Page 30 • Do not execute drain piping work by using a drain elbow and drain grommets (accessories). compressor failure, broken piping within the unit and abnormal noise generation. [Refer to Drain piping work.] damaged cause 2. REFRIGERANT PIPING WORK ng in the unit 1) Restrictions on unit installation and use •...

  • Page 31: Drain Piping Work

    CAUTION not available, fasten Fix both liquid and gas service valves at the valve main bodies as illustrated on the right, and then fasten them, the flare nut manually applying appropriate fastening torque. first and then tighten it further, using the Service valve size (mm) Tightening torque (N·m) Tightening angle (°...
  • Page 32 Running the unit with an insufficient quantity of refrigerant for a long time can cause a compressor failure. Formula to calculate the volume of additional refrigerant required Does the existing pipe system to reuse sati Put down the refrigerant volume calculated from the pipe length onto the caution label attached NOTE (1) The pipe length is 30m or less.
  • Page 33 grounding wire longer than the power cable. • SRC-ZRA-S, DXC-ZRA-S and SRC-YRA-S complies with the DRED One conductor of the cable is the earth conductor • The installation of an impulse withstanding type earth leakage breaker is necessary. (Demand Response Enabling Devices) standard AS/NZS4755.3.1 and (mm) (yellow/green) A failure to install an earth leakage breaker can result in an accident such as an electric...

  • Page 34: After Installation

    instructions or the construction instructions of the indoor unit. • Use Polychloroprene sheathed flexible cord (code designation 60245 IEC57, IEC60335-2-40) with cross- • Switchgear or Circuit breaker capacity which is calculated from maximum over current should be chosen along the sectional area of 2.0 or 2.5 mm for power cable of outdoor unit.

  • Page 35: Outline Of Operation Control By Microcomputer

    '15 • SRK-T-175 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 36: Unit On/Off Button

    '15 • SRK-T-175 '09•SRK-DB-087D (2) Unit ON/OFF button wireless wireless (a) Operation (b) Details of operation COOL, DRY HEAT Function Indoor temperature Fan speed Flap/Louver Timer Switch setting Operation mode COOL Unit ON/OFF button HEAT (3) Auto restart function Jumper wire (JA1) (ii) (JA1) (4) Installing two air-conditioners in the same room...

  • Page 37: Selection Of The Annual Cooling Function

    '15 • SRK-T-175 (5) Selection of the annual cooling function Jumper wire (JA3) (a) The annual cooling function can be enabled or disabled by means of the jumper wire (JA3) 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 38: 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. '15 • SRK-T-175 ② When the operation mode is changed DRY to FAN. (c) Not operable while the air-conditioner is OFF.

  • Page 39: Auto Operation

    display Center installation Left Approx. 50° Left Approx. 20° Center Right Approx. 20° Right Approx. 50° '15 • SRK-T-175 (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 40: Timer Operation

    As “Silent mode start” signal is received from the wireless remote control, it operates by dropping the outdoor fan tap and the (a) Setting compressor command speed. If the air-conditioning unit is running, press the ON/OFF button to stop. SRK63ZR-S SRK71ZR-S SRK80ZR-S Outdoor fan tap (Upper limit)

  • Page 41: 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 SRK63ZR-S SRK71ZR-S SRK80ZR-S Fan speed 12-120rps 20-116rps 20-120rps AUTO 12-120rps 20-116rps...
  • Page 42 Indoor fan motor Outdoor fan motor (few minutes ON) '15 • SRK-T-175 4-way valve (3 minutes ON) (b) Details of control at each operation mode (pattern) Fuzzy operation Model SRK63ZR-S SRK71ZR-S SRK80ZR-S Fan speed AUTO 12-120rps 20-116rps 20-120rps 12-120rps 20-116rps...

  • Page 43: Outline Of Cooling Operation

    (few minutes ON) (few minutes ON) 4-way valve 4-way valve (b) Detail of control in each mode (Pattern) (b) Detail of control in each mode (Pattern) Fuzzy operation Fuzzy operation Model SRK63ZR-S SRK71ZR-S SRK80ZR-S Model Fan speed SRK63ZR-S SRK71ZR-S SRK80ZR-S Fan speed...

  • Page 44: Outline Of Automatic Operation

    12-106rps 20-76rps 20-98rps AUTO 12-106rps 20-76rps 20-98rps AUTO 12-106rps 20-76rps 20-98rps AUTO 12-106rps 20-76rps 20-98rps 12-106rps 20-76rps 20-98rps 12-106rps 20-76rps 20-98rps 12-68rps 20-56rps 20-64rps 12-68rps 20-56rps 20-64rps 12-68rps 20-56rps 20-64rps '15 • SRK-T-175 12-50rps 20-40rps 20-46rps 12-50rps 20-40rps 20-46rps 12-50rps 20-40rps 20-46rps 12-32rps...
  • Page 45 '15 • SRK-T-175 (ii) Contents of operation Air capacity control Model SRK63ZR-S SRK71ZR-S SRK80ZR-S Item Upper limit of compressor’s command speed Range A: As per following table, Range B: 0 rps Note () Ranges A and B are as shown below.
  • Page 46 Operating conditions:Reset conditions: When the outdoor air temperature (TH2) has become continuously for 30 seconds at 38(41) ℃ or more, with the compressor running, the lower limit speed of compressor is brought up. Model SRK63ZR-S Item Outdoor air temperature 38℃ or more 41℃...
  • Page 47 After lapse of E sec. or over speed F rps Model 71, 80 0rps Indoor heat exchanger temperature (°C) 5 seconds Temperature list Model SRK63ZR-S '09•SRK-DB-087D 54.5 - 56 56.5 RPSmin < 45 57.0 45 < RPSmin < 115 115 <...
  • Page 48 '15 • SRK-T-175 (h) Heating low outdoor temperature protective control Operating conditions: When the outdoor air temperature (TH2) is lower than 4℃ or higher continues for 30 seconds while the compressor command speed is other than 0 rps. (ii)  Detail of operation: The lower limit compressor command speed is change as shown in the figure below.  ...
  • Page 49 Lower limit speed 25 rps 32 rps '15 • SRK-T-175 Current safe Current safe Purpose: Purpose: (ii) Detail of operation: (ii) Detail of operation: (k) Current cut (k) Current cut Purpose: Purpose: (ii) Detail of operation: (ii) Detail of operation: (l) Outdoor unit failure (l) Outdoor unit failure item (i), (ii) is satisfied.
  • Page 50 Outdoor fan motor protection Outdoor fan motor protection '15 • SRK-T-175 Outdoor fan control at low outdoor temperature Cooling Operating conditions: Outdoor fan control at low outdoor temperature Cooling Detail of operation: Operating conditions: Detail of operation: Outdoor fan Outdoor temperature > 10˚C Outdoor fan Outdoor temperature <...
  • Page 51 Outdoor temperature < = 16˚C '15 • SRK-T-175 Outdoor fan control at overload conditions. Cooling Operating conditions: When the outdoor air temperature (TH2) is 41℃(model 63:38℃) or higher continues Reset conditions: for 30 seconds while the compressor ON. Detail of operation: The outdoor fan is stepped up by 3 speed step. (Upper limit 8th speed). Reset conditions: When either of the fllowing conditions is satisfied.

  • Page 52: Maintenance Data

    '09•SRK-DB-087D '15 • SRK-T-175 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) satisfied Important source wireless proced-...
  • Page 53 '09•SRK-DB-087D '15 • SRK-T-175 (4) Troubleshooting procedure (If the air-conditioner runs) 54 - 60. 54 - 60.

  • Page 54: Self-Diagnosis Table

    '15 • SRK-T-175 (5) Self-diagnosis table Wired Indoor unit display panel remote Description Cause Display (flashing) condition control TIMER of trouble display light light • Broken heat exchanger sensor When a heat exchanger sensor 1 wire disconnection is detected while 1-time operation is stopped.

  • Page 55: 6) Service Mode (Trouble Mode Access Function

    '09•SRK-DB-087D '15 • SRK-T-175 (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 56 '09•SRK-DB-087D '15 • SRK-T-175 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 57 '09•SRK-DB-087D '15 • SRK-T-175 (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 58 '15 • SRK-T-175 (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 light Error coad (10's digit) (1's digit) Normal The wired remote control wire Y is open. The wired remote control wires X and Y are reversely connected.
  • Page 59 '09•SRK-DB-087D '15 • SRK-T-175 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 60 '09•SRK-DB-087D '15 • SRK-T-175 (e) Temperatare information Room temperature sensor, indoor heat exchanger sensor, outdoor air temperature sensor, outdoor heat exchanger 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 Sensor name...
  • Page 61 '09•SRK-DB-087D '15 • SRK-T-175 (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 62 '09•SRK-DB-087D '15 • SRK-T-175 Service data record form Wireless r Operation mode Fan speed mode Wireless r Wireless r Wireless r Wireless r Wireless r wireless...

  • Page 63: 7) Inspection Procedures Corresponding To Detail Of Trouble

    '09•SRK-DB-087D '15 • SRK-T-175 (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 64 '09•SRK-DB-087D '15 • SRK-T-175 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. ＊   ＊ Model63 0.864Ω or more at 20℃ Model71, 80 1.155Ω...
  • Page 65 '09•SRK-DB-087D '15 • SRK-T-175 Over heat of compressor Gas shortage, defective discharge pipe sensor Error of signal transmission Wiring error including power cable, defective indoor/ outdoor PCB source ② ③ ② ③ ① ②...
  • Page 66 '09•SRK-DB-087D '15 • SRK-T-175 Trouble of outdoor unit Insufficient refregerant amount, Faulty power transistor, Broken compressor wire Service valve close, Defective EEV, Defective outdoor PCB source source source source ◆       Notes (1) (2) Check coil wire resistance, see page 63. wire ．...

  • Page 67: 8) Phenomenon Observed After Shortcircuit, Wire Breakage On Sensor

    '15 • SRK-T-175 Rotor lock Defective compressor, defective outdoor PCB See page 63. 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 68: 8) Phenomenon Observed After Shortcircuit, Wire Breakage On Sensor

    '15 • SRK-T-175 (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 69 Replace indoor PCB. blocks ② and ③ oscillating between DC 0 and 20V? '15 • SRK-T-175 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 70: Inspection Procedure For Blown Fuse On The Indoor And Outdoor Pcb

    Operation SW ON Measure in this section '15 • SRK-T-175 (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 71: Outdoor Unit Inspection Points

    '15 • SRK-T-175 (12) Outdoor unit inspection points Models SRC63ZR-S, 71ZR-S, 80ZR-S ◆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 72 '09•SRK-DB-087D '15 • SRK-T-175 (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          source ② Measuring Voltage range when point...

  • Page 73: Option Parts

    '15 • SRK-T-175 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 74 '15 • SRK-T-175 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 75 '15 • SRK-T-175 PJA0 12D7 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, dehumidifying, automatic) : 18 - 30°C (62 - 86°F) Upper limit and lower limit of set temperature can be changed with remote control.
  • Page 76 '15 • SRK-T-175 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 77 '15 • SRK-T-175 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 78 '15 • SRK-T-175 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 79: Interface Kit (Sc-Bikn-E)

    '15 • SRK-T-175 (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 80 '15 • SRK-T-175 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 81 '15 • SRK-T-175 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 82 '15 • SRK-T-175 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 83: Superlink E Board (Sc-Adna-E)

    '15 • SRK-T-175 (3) Superlink E board (SC-ADNA-E) central control...
  • Page 84 '15 • SRK-T-175...

  • Page 85: Technical Information

    Rated air flow(outdoor) 2490 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 RWA000Z262...

  • Page 86: 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 RWA000Z262...
  • Page 87 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 RWA000Z262...
  • Page 88 INVERTER WALL MOUNTED TYPE RESIDENTIAL AIR-CONDITIONERS Air-Conditioning & Refrigeration Divison 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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