Mitsubishi Heavy Industries SRF50ZMX-S Technical Manual
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Mitsubishi Heavy Industries SRF50ZMX-S Technical Manual

Mitsubishi Heavy Industries SRF50ZMX-S Technical Manual

Inverter floor standing type residential air-conditioners
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Manual No.'17•SRF-T-217
updated May 22, 2018
TECHNICAL MANUAL
INVERTER FLOOR STANDING TYPE
RESIDENTIAL AIR-CONDITIONERS
(Split system, air to air heat pump type)
SRF50ZMX-S / SRC50ZSX-S

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Summary of Contents for Mitsubishi Heavy Industries SRF50ZMX-S

  • Page 1 Manual No.'17•SRF-T-217 updated May 22, 2018 TECHNICAL MANUAL INVERTER FLOOR STANDING TYPE RESIDENTIAL AIR-CONDITIONERS (Split system, air to air heat pump type) SRF50ZMX-S / SRC50ZSX-S...

  • Page 2: Table Of Contents

    '10 • SRK-T-105 '17 • SRF-T-217 CONTENTS 1. SPECIFICATIONS ..................2. EXTERIOR DIMENSIONS ................. (1) Indoor unit ..................(2) Outdoor unit ..................(3) Remote control ..................3. ELECTRICAL WIRING ................(1) Indoor unit ..................(2) Outdoor unit ..................10 4. NOISE LEVEL ....................
  • Page 3 '17 • SRF-T-217 10. MAINTENANCE DATA ................39 (1) Cautions ..................... 39 (2) Items to check before troubleshooting ..........39 ..39 (3) Troubleshooting procedure (If the air conditioner does not run at all) ..... 40 (4) Troubleshooting procedure (If the air conditioner runs) (5) Self-diagnosis table ................

  • Page 4: Specifications

    '17 • SRF-T-217 1. SPECIFICATIONS SRF50ZMX-S Model Item Indoor unit SRF50ZMX-S Outdoor unit SRC50ZSX-S Power source 1 Phase 220 - 240V 50Hz / 220V 60Hz Nominal cooling capacity (range) 5.0 ( 1.1(Min.) - 5.2 (Max.)) Nominal heating capacity (range) 6.0 ( 0.6(Min.) - 6.9 (Max.)) Heating capacity (H2) —...

  • Page 5: Exterior Dimensions

    '17 • SRF-T-217 2. EXTERIOR DIMENSIONS (1) Indoor unit Model SRF 50ZMX-S RFB000Z006...

  • Page 6: Outdoor Unit

    '17 • SRF-T-217 (2) Outdoor unit Model SRC50ZSX-S RCT000Z020...

  • Page 7: Remote Control

    '17 • SRF-T-217 (3) Remote control (a) Wireless remote control Unit : mm...
  • Page 8 '17 • SRF-T-217 (b) Wired remote control (option parts) Interface kit (SC-BIKN-E, SC-BIKN2-E) is required to use the wired remote control. Model RC-EX3 Installation space Installation space Exterior appearance Pearl white Exterior appearance Pearl white (Munsell color) (N8.5) near equivalent (Munsell color) (N8.5) near equivalent R/ C cable ：...
  • Page 9 '17 • SRF-T-217 Model RC-E5 Wiring outlet Cut off the upper thin part of remote control lower case with a nipper or knife, Exposed mounting and grind burrs with a file etc. In case of pulling out In case of pulling out from upper left from center 0.3mm...

  • Page 10: Electrical Wiring

    '17 • SRF-T-217 3. ELECTRICAL WIRING (1) Indoor unit Model SRF 50ZMX-S RWB000Z057...

  • Page 11: Outdoor Unit

    '17 • SRF-T-217 (2) Outdoor unit Model SRC50ZSX-S RWC000Z298...

  • Page 12: Noise Level

    '17 • SRF-T-217 4. NOISE LEVEL Model SRK50ZSX-S Condition ISO5151 T1/H1 (Indoor Unit) Mike position Model SRF50ZMX-S Cooling 46 dB(A) Mike position Noise Unit Level Heating 47 dB(A) × ..Cooling, Heating N 70 N 60 N 50 N 40...

  • Page 13: Piping System

    '17 • SRF-T-217 5. PIPING SYSTEM Model SRF50ZMX-S Cooling cycle Heating cycle Indoor unit Outdoor unit Outdoor air Flare temp. sensor connection Service valve (TH2) (Gas) Gas pipe Muffler Discharge pipe Heat Check joint (φ12.7) temp. sensor Room temp. exchanger...

  • Page 14: Range Of Usage & Limitations

    '17 • SRF-T-217 6. RANGE OF USAGE & LIMITATIONS RANGE OF USAGE & LIMITATIONS Model SRF50ZMX-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℃...
  • Page 15 '09•SRK-DB-087D '17 • SRF-T-217 (2) Correction of cooling and heating capacity in relation to one way length of refrigerant piping Piping length [m] Cooling 0.99 0.975 0.965 0.95 0.935 Heating (3) Correction relative to frosting on outdoor heat exchanger during heating Air inlet temperature of 5 or more outdoor unit in °C WB...

  • Page 16: Capacity Tables

    '17 • SRF-T-217 7. CAPACITY TABLES Model SRF50ZMX-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. 16˚CDB 18˚CDB 20˚CDB...

  • Page 17: Application Data

    '17 • SRF-T-217...
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  • Page 21: Installation Of Outdoor Unit

    '17 • SRF-T-217 (2) Installation of outdoor unit RWC012A060 A Model SRC20,25,35,40,50,60ZSX-S SRC20,25,35ZSX-SA R410A REFRIGERANT USED • This installation manual deals with an outdoor unit installation only. For an indoor unit installation, refer to page 16. SAFETY PRECAUTIONS • Before installation, read the “SAFETY PRECAUTIONS” carefully and strictly follow it during the installa- • B e sure to confirm no operation problem on the equipment after completing the installation. If unusual tion work in order to protect yourself.
  • Page 22 '17 • SRF-T-217 2. OUTDOOR UNIT INSTALLATION 1. Haulage 3. Installation space • Always carry or move the unit with two or more persons. • There must be 1 meter or larger space between the unit and the wall in at least 1 of the 4 sides. •...
  • Page 23 '17 • SRF-T-217 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 of outdoor unit. Improper installation can cause compressor failure or performance degradation.
  • Page 24 '17 • SRF-T-217 6. PUMP DOWN (1) Connect charge hose of gauge manifold to service port of outdoor unit. Gauge manifold (2) Close the liquid service valve with hexagonal wrench key. (3) Fully open the gas service valve with hexagonal wrench key. (4) Carry out forced cooling operation (For forced cooling operation procedure, refer to indoor unit installation manual).

  • Page 25: Outline Of Operation Control By Microcomputer

    '17 • SRF-T-217 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 26: Unit On/Off Button

    '17 • SRF-T-217 (2) Unit ON/OFF button When the wireless remote control batteries become weak, or if the wireless remote control is lost or malfunctioning, this button may be used to turn the unit on and off. (a) Operation Push the button once to place the unit in the automatic mode. Push it once more to turn the unit off. (b) Details of operation The unit will go into the automatic mode in which it automatically determines, from indoor temperature (as detected by sensor), whether to go into the cooling, thermal dry or heating modes.

  • Page 27: Selection Of The Annual Cooling Function

    '17 • SRF-T-217 (5) Selection of the annual cooling function (a) The annual cooling control is valid from factory default setting . It is possible 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 28: Flap Control

    '17 • SRF-T-217 Flap control   Control the flap by AIR FLOW (UP/DOWN) button on the wireless remote control. (a) Flap   Each time when you press the AIR FLOW (UP/DOWN) button the mode changes as follows. (Flap stopped) (Swing)  ...

  • Page 29: Timer Operation

    The Off timer can be set at a specific time (in 10-minute units) within a 24-hour period. (11) Silent mode As “Silent mode start” signal is received from the wireless remote control, it operates by dropping the outdoor fan tap and the compressor command speed. SRF50ZMX-S Cooling Heating Outdoor fan tap 5th speed...
  • Page 30 Deviation between the room temperature setting correction temperature and the return air temperature is calculated in accordance with the fuzzy rule, and used for control of the air capacity and the compressor speed. Model SRF50ZMX-S Fan speed 12 - 110rps...

  • Page 31: Outline Of Cooling Operation

    (i) Fuzzy operation During the fuzzy operation, the air flow and the compressor speed are controlled by calculating the difference between the room temperature setting correction temperature and the return air temperature. Model SRF50ZMX-S Fan speed 12 - 86rps Auto...

  • Page 32: Outline Of Dehumidifying (Dry) Operation

    '17 • SRF-T-217 (15) Outline of dehumidifying (DRY) operationion (a) Purpose of DRY mode The purpose is "Dehumidification", and not to control the humidity to the target condition. Indoor/outdoor unit control the operation condition to reduce the humidity, and also prevent over cooling. (b) Outline of control (i) Indoor unit fan speed and compressor are controlled by the area which is selected by the temperature difference.

  • Page 33: Protective Control Function

    '17 • SRF-T-217 (c) When the unit is started again within one hour after the stop of automatic operation or when the automatic operation is selected during heating, cooling or dehumidifying operation, the unit is operated in the previous operation mode. (d) Setting temperature can be adjusted within the following range.
  • Page 34 '17 • SRF-T-217 Frost prevention control (During cooling or dehumidifying) (i) Operating conditions 1) Indoor heat exchanger temperature (Th2) is lower than 5ºC. compressor command 2) 5 minutes after reaching the compressor command speed except 0 rps. speed (ii) Detail of anti-frost operation Lower Indoor heat exchanger temperature limit...
  • Page 35 '17 • SRF-T-217 (d) Cooling high pressure control (i) Purpose Prevents anomalous high pressure operation during cooling. (ii) Detector Outdoor heat exchanger sensor (TH1) (iii) Detail of operation: Model SRF50 TH2 > = 32ºC Outdoor heat exchanger temperature (ºC) TH2 < 32ºC TH2 : Outdoor air temperature (Example) Fuzzy After lapse of 20 sec.
  • Page 36 '17 • SRF-T-217 (f) Heating high pressure control (i) Purpose Prevents anomalous high pressure operation during heating. (ii) Detector Indoor heat exchanger sensor (Th2) (iii) Detail of operation (Example) Fuzzy After lapse of 10 sec. or over 4rps 8rps 4rps 8rps After lapse of 10 sec.
  • Page 37 rps. Item Compressor command speed Protective Low limit Upper limit control '17 • SRF-T-217 30 rps 90 rps 40 rps 75 rps Protective control ON2 Protective control ON1 Normal operation Outdoor air temperature(°C) 3) Reset conditions The outdoor air temperature (TH2) is lower than 11ºC. (h) Heating low outdoor temperature protective control (i) Operating conditions When the outdoor air temperature (TH2) is lower than 4ºC or higher continues for 30 seconds while the compressor com-...
  • Page 38 '17 • SRF-T-217 (j) Current safe (i) Purpose Current is controlled not to exceed the upper limit of the setting operation current. (ii) Detail of operation Input current to the converter is monitored with the current sensor fixed on the printed circuit board of the outdoor unit and, if the operation current value reaches the limiting current value, the compressor command speed is reduced.
  • Page 39 '17 • SRF-T-217 a) Outdoor heat exchanger temperature = < 21ºC After the outdoor fan speed drops (down) to 1 speed for 60 seconds; if the outdoor heat exchanger temperature is lower than 21ºC, gradually reduce the outdoor fan speed by 1 speed. (Lower limit 1st speed) b) 21ºC <...

  • Page 40: Maintenance Data

    '09•SRK-DB-087D '17 • SRF-T-217 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 198 - 264V source wireless proced-...
  • Page 41 '09•SRK-DB-087D '17 • SRF-T-217 (4) Troubleshooting procedure (If the air-conditioner runs) service 42 - 48. service 42 - 48.

  • Page 42: Self-Diagnosis Table

    '09•SRK-DB-087D '17 • SRF-T-217 (5) Self-diagnosis table air-conditioner air-conditioner air-conditioner 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 43 '09•SRK-DB-087D '17 • SRF-T-217 (6) Service mode (Trouble mode access function) air-conditioner (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 44 '09•SRK-DB-087D '17 • SRF-T-217 4-time flash 2-time flash. wireless mode mode air-conditioner Self-diagnosis data What are 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 45 '09•SRK-DB-087D '17 • SRF-T-217 (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 46 '09•SRK-DB-087D '17 • SRF-T-217 (c) Error code, stop code table Number of flashes when in service mode Stop coad Error Auto Error content Cause Occurrence conditions TIMER 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 47 '09•SRK-DB-087D '17 • SRF-T-217 service mode 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 48 '09•SRK-DB-087D '17 • SRF-T-217 (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 49 '09•SRK-DB-087D '17 • SRF-T-217 (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 50 '09•SRK-DB-087D '17 • SRF-T-217 Service data record form Wireless r Operation mode Fan speed mode Wireless r Wireless r Wireless r Wireless r Wireless r wireless (Refer to page...
  • Page 51 '09•SRK-DB-087D '17 • SRF-T-217 (7) Inspection procedures corresponding to detail of trouble Sensor error Broken sensor wire, connector poor connection Discharge pipe sensor temperature characteristics Sensor temperature characteristics (Room temp., indoor heat exchanger temp., out- door heat exchanger temp., outdoor air temp.) - 10 Temperature (˚C)
  • Page 52 '09•SRK-DB-087D '17 • SRF-T-217 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. ＊   ＊ SRC50:0.864Ω (U-V, V-W, U-W) or more at 20ºC Current safe stop Overload operation, compressor lock, overcharge...
  • Page 53 '09•SRK-DB-087D '17 • SRF-T-217 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 54 '09•SRK-DB-087D '17 • SRF-T-217 Trouble of outdoor unit Insufficient refregerant amount, Faulty power transistor, Broken compressor wire Service valve close, Defective EEV, Defective outdoor PCB ◆  (1)        Notes (1) ． Outdoor fan motor error Defective fan motor, connector poor connection, defective outdoor PCB...
  • Page 55 '17 • SRF-T-217 Rotor lock Defective compressor, defective outdoor PCB See page 51. Service valve (gas side) closed operation Service valve (gas side) closed, (8) Phenomenon observed after shortcircuit, wire breakage on sensor Defective outdoor PCB (a) Indoor unit Phenomenon Operation Sensor mode...
  • Page 56 '17 • SRF-T-217 (8) Phenomenon observed after shortcircuit, wire breakage on sensor (a) Indoor unit Phenomenon Operation Sensor mode Shortcircuit Disconnected wire Cooling Room temperature sensor Heating Cooling Heat exchanger sensor Heating Cooling Humidity sensor Heating ■ Humidity sensor operation Failure mode Control input circuit reading Air-conditioning system operation...
  • Page 57 blocks ② and ③ oscillating between Replace indoor PCB. DC 0 and 20V? '17 • SRF-T-217 Indoor electrical components are normal. (b) Indoor unit fan motor check procedure 1) Indoor PCB output check ① ④ ⑤ (–) DC several V DC308-336V (4-6 V) Measuring...

  • Page 58: Inspection Procedure For Blown Fuse On The Indoor And Outdoor Pcb

    Operation SW ON Measure in this section '17 • SRF-T-217 (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 59: Outdoor Unit Inspection Points

    '17 • SRF-T-217 (12) Outdoor unit inspection points Model SRC50ZSX-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 : AC220/230/240V unit is stopped.
  • Page 60 '09•SRK-DB-087D '17 • SRF-T-217 (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 ⑥ ...

  • Page 61: Option Parts

    '17 • SRF-T-217 11. OPTION PARTS (1)　Wired remote control PJZ012A131 ※ When RC-EX3 is connected, please use SC-BIKN2-E by all means. (a)　Model RC-EX3 　 1 . Safety precautions s i h l a u y l l t r a g n i a t s t a l l...
  • Page 62 '17 • SRF-T-217 　 WARNING Do not install the unit in appropriate environment or where inflammable gas could generate, flow in, accumulate or leak. If the unit is used at places where air contains dense oil mist, steam, organic solvent vapor, corrosive gas (ammonium, sulfuric compound, acid, etc) or where acidic or alkaline solution, special spray, etc.
  • Page 63 '17 • SRF-T-217 　 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 ・Where the surface is not flat ・Where the strength of installation area is insufficient ) 2 (...
  • Page 64 '17 • SRF-T-217 　 2 . Accessories & Prepare on site Following parts are provided. Accessories R/C main unit, wood screw (ø3.5 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 65 '17 • SRF-T-217 　 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) 固定穴 Fixing holes センサー 端子 Sensor USB port Terminal block To remove the upper case from the bottom cases of R/C ess at the lower part of R/C and twist it lightly to remove.
  • Page 66 ブッ シ ング パテで シール する こ と '17 • SRF-T-217 　 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 67 '17 • SRF-T-217 　 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 68 '17 • SRF-T-217 Installation manual for wired remote controller Connect the remote control cord (b)　Model RC-E5 terminal block. PJA012D730 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 Fasten the wiring to the terminal securely and hold the cable securely so as not to apply unexpected stress on the...
  • Page 69 '17 • SRF-T-217 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 70 '17 • SRF-T-217 P J A 0 1 2D 73 0 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 71 '17 • SRF-T-217 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 72 '17 • SRF-T-217 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 73 '15 • SRK-T-177 '17 • SRF-T-217 PJA01 2D 730 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 74 '17 • SRF-T-217 '17 • SRK-T-211 (c) Operation and setting from wired remote control ○：Nearly same function setting and operations are possible. △：Similar function setting and operations are possible. Setting ＆ display item Description RC-EX3 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 75 '17 • SRF-T-217 '17 • SRK-T-211 Setting ＆ display item Description RC-EX3 RC-E5 2 Administrator settings R/C display setting Register [Room name] [Name of I/U] Display [Indoor temp. display] or not. ○ △ [Administrator password] Display [Error code display] or not. Display [Heating stand-by display] [Defrost operation display] [Auto cooling/heating display] [Display temp of R/C, Room, Outdoor] or not Change administrator password The administrator password can be changed.

  • Page 76: Interface Kit

    '17 • SRF-T-217 (2) Interface kit (a) 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 77 '17 • SRF-T-217 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 78 '17 • SRF-T-217 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 ×0.2m...
  • Page 79 '17 • SRF-T-217 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 80 '17 • SRF-T-217 ※ When RC-EX3 is connected, please use SC-BIKN2-E by all means. (b) SC-BIKN2-E 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 81 '17 • SRF-T-217 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 82 '17 • SRF-T-217 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 83 '17 • SRF-T-217 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 suitch Caution:Wireless remote control attached to the indoor unit can be used in parallel, after connecting the wired remote control.
  • Page 84 '17 • SRF-T-217 (3) Superlink E board (SC-ADNA-E) PJZ012D029K central control...
  • Page 85 '17 • SRF-T-217...

  • Page 86: Technical Information

    Rated air flow(outdoor) 2340 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 RWA000Z269-15...
  • Page 87 MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. 16-5 Konan 2-chome, Minato-ku, Tokyo, 108-8215, 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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