Mitsubishi Heavy Industries KXZ Series Technical Manual
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Mitsubishi Heavy Industries KXZ Series Technical Manual

Vrf inverter multi-system air-conditioners, wall mounted type
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TECHNICAL MANUAL
VRF INVERTER MULTI-SYSTEM AIR-CONDITIONERS
(INDOOR UNIT)
KXZ series
Wall mounted type
FDK22KXZE1
28KXZE1
36KXZE1
45KXZE1
56KXZE1
71KXZE1
Note:
•
(1) Regarding the outdoor unit KXZ series, refer to the No.'14
No.'16
KX-DB-225D.
•
Manual No.'17•KX-T-259
KX-T-223, No.'15
KX-T-227 and
•
•

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  • Page 1 TECHNICAL MANUAL VRF INVERTER MULTI-SYSTEM AIR-CONDITIONERS (INDOOR UNIT) KXZ series Wall mounted type FDK22KXZE1 28KXZE1 36KXZE1 45KXZE1 56KXZE1 71KXZE1 Note: • (1) Regarding the outdoor unit KXZ series, refer to the No.'14 KX-T-223, No.'15 KX-T-227 and • • No.'16 KX-DB-225D. •...

  • Page 2: Table Of Contents

    10.2 Simple wired remote control (RCH-E3) ..............110 ■ How to read the model name Example: FDK 22 Series No. Application power source...See the specifications Multi KXZ series Nominal capacity (Nominal cooling capacity : 2.2kW) Model name〔Wall mounted type 〕 – –...

  • Page 3: Specifications

    '17 • KX-T-259 1. SPECIFICATIONS Models FDK22KXZE1, 28KXZE1, 36KXZE1, 45KXZE1, 56KXZE1 PHA001Z126 – –...
  • Page 4 '17 • KX-T-259 Model FDK71KXZE1 PHA001Z126 – –...
  • Page 5 '17 • KX-T-259 Weight List (Package) 【Indoor unit & option parts】 Unit : kg Gross Packing Paper Plastic Metal Wood Glass Other Material weight Parts Steel Aluminium weight (Total) Model FDK22KXZE1 12.5 1.21 0.88 0.33 0.00 0.00 0.00 0.00 0.00 FDK28KXZE1 12.5 1.21...

  • Page 6: Exterior Dimensions

    '17 • KX-T-259 2. EXTERIOR DIMENSIONS Indoor unit Models FDK22KXZE1, 28KXZE1, 36KXZE1, 45KXZE1, 56KXZE1 PHA001Z105 – –...
  • Page 7 '17 • KX-T-259 Model FDK71KXZE1 PHA001Z106 – –...

  • Page 8: Remote Control (Option Parts)

    '17 • KX-T-259 Remote control (Option parts) Wired remote control Model RC-EX3 Installation space Exterior appearance Pearl white (Munsell color) (N8.5) near equivalent R/C cable：0.3mm × 2 cores RoHS Adapted to directive PJZ000Z321 – –...
  • Page 9 '17 • KX-T-259 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 '17 • KX-T-259 Wireless remote control (RCN-EK2) Unit: mm – –...

  • Page 11: Electrical Wiring

    '17 • KX-T-259 3. ELECTRICAL WIRING All models PHA001Z107 – –...

  • Page 12: Noise Level

    '17 • KX-T-259 4. NOISE LEVEL Notes(1) The data are based on the following conditions. Ambient air temperature: Indoor unit 27℃WB. Outdoor unit 35℃DB. (2) The data in the chart are measured in an anechoic room. Unit (3) The noise levels measured in the field are usually higher than the data because of reflection. Measured based on JIS B 8616 Mike Mike position...
  • Page 13 '17 • KX-T-259 Model FDK45KXZE1 Cooling 43 dB(A) P-Hi Noise Level × ..Cooling Heating 43 dB(A) Heating N 7 0 N 6 0 N 5 0 N 4 0 N 3 0 N 2 0 1000 2000 4000 8000 Mid octave band frequency (Hz) Model FDK56KXZE1...
  • Page 14 '17 • KX-T-259 Model FDK71KXZE1 Cooling 42 dB(A) P-Hi Noise Level × ..Cooling Heating 42 dB(A) Heating N 7 0 N 6 0 N 5 0 N 4 0 N 3 0 N 2 0 1000 2000 4000 8000 Mid octave band frequency (Hz) –...

  • Page 15: Temperature And Velocity Distribution

    '17 • KX-T-259 5. TEMPERATURE AND VELOCITY DISTRIBUTION Indoor temperature Cooling °CDB/°CWB, Heating 0°CDB 〔 Note 〕 These figures represent the typical main range of temperature and velocity distribution at the center of air outlet within the published conditions. In the actual installation, they may differ from the typical figures under the influence of air temperature conditions, ceiling height, operation conditions and obstacles. Models FDK22, 28KXZE1 ：...
  • Page 16 '17 • KX-T-259 Model FDK36KXZE1 ： P-Hi Temperature distribution Velocity distribution ： P-Hi Temperature distribution Velocity distribution – –...
  • Page 17 '17 • KX-T-259 Model FDK45KXZE1 ： P-Hi Temperature distribution Velocity distribution ： P-Hi Temperature distribution Velocity distribution – –...
  • Page 18 '17 • KX-T-259 Model FDK56KXZE1 ： P-Hi Temperature distribution Velocity distribution ： P-Hi Temperature distribution Velocity distribution – –...
  • Page 19 '17 • KX-T-259 Model FDK71KXZE1 ： P-Hi Temperature distribution Velocity distribution ： P-Hi Temperature distribution Velocity distribution – –...

  • Page 20: Capacity Tables

    '17 • KX-T-259 6. CAPACITY TABLES Caution: In case that the cooling operation during low outdoor air temperature below -5°C is expected, install the outdoor unit where it is not influenced by natural wind. Otherwise protection control by low pressure will be activated much more frequently and it will cause insufficient capacity or breakdown of the compressor in worst case.
  • Page 21 '17 • KX-T-259 FDK28KXZE1 Model Cooling Mode (kW) Heating Mode (kW) Indoor air temperature Outdoor temp. Indoor temp. Air flow 21 ℃DB 23 ℃DB 26 ℃DB 27 ℃DB 28 ℃DB 31 ℃DB 33 ℃DB Outdoor Air flow air temp. 14 ℃WB 16 ℃WB 18 ℃WB 19 ℃WB...
  • Page 22 '17 • KX-T-259 FDK36KXZE1 Model Cooling Mode (kW) Heating Mode (kW) Indoor air temperature Outdoor temp. Indoor temp. Air flow Outdoor 21 ℃DB 23 ℃DB 26 ℃DB 27 ℃DB 28 ℃DB 31 ℃DB 33 ℃DB Air flow air temp. 14 ℃WB 16 ℃WB 18 ℃WB 19 ℃WB...
  • Page 23 '17 • KX-T-259 FDK45KXZE1 Model Cooling Mode (kW) Heating Mode (kW) Indoor air temperature Outdoor temp. Indoor temp. Air flow Outdoor 21 ℃DB 23 ℃DB 26 ℃DB 27 ℃DB 28 ℃DB 31 ℃DB 33 ℃DB Air flow air temp. 14 ℃WB 16 ℃WB 18 ℃WB 19 ℃WB...
  • Page 24 '17 • KX-T-259 FDK56KXZE1 Model Cooling Mode (kW) Heating Mode (kW) Indoor air temperature Outdoor temp. Indoor temp. 21 ℃DB 23 ℃DB 26 ℃DB 27 ℃DB 28 ℃DB 31 ℃DB 33 ℃DB Air flow Outdoor Air flow 14 ℃WB 16 ℃WB 18 ℃WB 19 ℃WB 20 ℃WB...
  • Page 25 '17 • KX-T-259 FDK71KXZE1 Model Cooling Mode (kW) Heating Mode (kW) Indoor air temperature Outdoor temp. Indoor temp. Air flow Outdoor 21 ℃DB 23 ℃DB 26 ℃DB 27 ℃DB 28 ℃DB 31 ℃DB 33 ℃DB Air flow air temp. 14 ℃WB 16 ℃WB 18 ℃WB 19 ℃WB...

  • Page 26: Application Data

    '17 • KX-T-259 7. APPLICATION DATA 7.1 lnstallation of indoor unit PHA012D401 This manual is for the installation of an indoor unit. For electrical wiring work (Indoor), refer to the electrical wiring work installation manual. For remote control installation, refer to the installation manual attached to a remote control. For wireless kit CAUTION installation, refer to the installation manual attached to a wireless kit.
  • Page 27 '17 • KX-T-259 D401 201610 ① Before installation ③ Preparation before installation Before installation Preparation before installation Front view for installing position and installing space Front view for installing position and installing space UNIT: mm UNIT: mm Install correctly according to the installation manual. Service space Confirm the following points: Service space...
  • Page 28 '17 • KX-T-259 ⑥ Refrigerant pipe ④ Installation of indoor unit (continued) ⑦ 1. A g Fixing of indoor unit Installation Steps Caution Pass the pipe through the hole ● Be sure to use new pipes for the refrigerant pipes. Use the flare nut attached to the product or Latch (2 locations) 2.
  • Page 29 '17 • KX-T-259 ⑧ Wiring-out position and wiring connection (continued) ⑦ Drain pipe (continued) ● 1. A general-purpose hard PVC pipe VP16 can be connected to the drain hose tip as a part of Address setting drain piping. Remove the front panel of indoor unit and the control cover, it is possible to change address setting. duct or 2.

  • Page 30: Electric Wiring Work Instruction

    '17 • KX-T-259 7.2 Electric wiring work instruction PSC012D087 Electrical wiring work must be performed by an electrician qualified by a local power provider according to the electrical installation technical standards and interior wiring regulations applicable to the installation site. ①...
  • Page 31 '17 • KX-T-259 AIR CON NO. Address setting ② ③④ Operation and confirmation from remote control Address setting is done by (1) Manual address setting or (2) Automatic address setting. AIR CON NO. Operation from the eco touch remote Operation from the standard remote control Item In the case of (2) "Automatic address setting", it is possible to change address setting by wired control (RC-EX3)
  • Page 32 '17 • KX-T-259 ⑥ Operation and setting from remote control A : Refer to the instruction manual for RC-EX series ○：Nearly same function setting and operations are possible. B : Refer to the installation manual for RC-EX series △：Similar function setting and opperations are possible. C : Loading a utility software vie Internet *1: RC-EX1A has not this function.
  • Page 33 '17 • KX-T-259 ⑥ Operation and setting from remote control (continued) RC-E4 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.

  • Page 34: Installation Of Wired Remote Control (Option Parts)

    '17 • KX-T-259 7.3 Installation of wired remote control (Option parts) (1) Model RC-EX3 PJZ012A131 　 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 35 '17 • KX-T-259 　 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 36 '17 • KX-T-259 　 CAUTION Do not install the remote control at following places. (1) It could cause break-down or deformation of remote control. ・ Where it is exposed to direct sunlight ・ Where the ambient temperature becomes 0 °C or below, or 40 °C or above ・...
  • Page 37 '17 • KX-T-259 　 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 38 '17 • KX-T-259 　 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 ·...
  • Page 39 ブッ シ ング パテで シール する こ と '17 • KX-T-259 　 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 40 '17 • KX-T-259 　 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 41: Model Rc-E5

    '17 • KX-T-259 PJA012D730 (2) Model RC-E5 Installation manual for wired remote controller Connect the remote cont 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 42 '17 • KX-T-259 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 43 '17 • KX-T-259 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 44 '17 • KX-T-259 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 45 '17 • KX-T-259 PJA012D730 omatically defined as following table. Operation message How to set function ndoor unit. Function description: Function No. Stop air-conditioner and press (SET) (MODE) setting description: " mode buttons at the same time for over three seconds, and the ep of air flow setting "FUNCTION SET "...

  • Page 46: Outline Of Operation Control By Mycrocomputer

    '16 • PAC-T-251 '17 • KX-T-259 1.10 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 8. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 1.10.1 Remote control 8.1 Remote control (Option parts) Wired remote control Wired remote control Model RC-EX3 Model RC-EX3 ⑤ LCD (With backlight) ③...
  • Page 47 '16 • PAC-T-251 '17 • KX-T-259 Wired remote control Model RC-E5 The figure below shows the remote control with the cover opened. Note that all the items that may be displayed in the liquid crystal display area are shown in the figure for the sake of explanation Characters displayed with dots in the liquid crystal display area are abbreviated.
  • Page 48 '16 • PAC-T-251 '17 • KX-T-259 Wireless remote control Indication section ① OPERATION MODE display Indicates selected operation mode. SET TEMP display Indicates set temperature. SLEEP TIMER time display Indicates the amount of time remaining on the sleep timer. ② Indoor function setting Indicates the setting number of the indoor function setting.

  • Page 49: Operation Control Function By The Wired Remote Control

    '16 • PAC-T-251 '17 • KX-T-259 1.10.2 Operation control function by the wired remote control 8.2 Operation control function by the wired remote control ●Model RC-EX3 (1) Switching sequence of the operation mode switches of remote control (a) Tap the change operation mode button on the TOP screen. (b) When the change operation mode screen is displayed, tap the button of desired mode.
  • Page 50 '16 • PAC-T-251 '17 • KX-T-259 ●Content memorized with the power failure compensation are as follows. Note(1) Items (f) and (g) are memorized regardless whether the power failure compensation is effective or not while the setting of silent mode is cancelled regardless whether the power failure compensation is effective or not.
  • Page 51 '16 • PAC-T-251 '17 • KX-T-259 Model RC-E5 Switching sequence of the operation mode switches of remote control COOL HEAT AUTO CPU reset This functions when “CHECK” and “ESP” buttons on the remote control are pressed simultaneously. Operation is same as that of the power source reset.

  • Page 52: Operation Control Function By The Indoor Control

    '16 • PAC-T-251 '17 • KX-T-259 11.3 Operation control function by the indoor control 8.3 Operation control function by the indoor control (1) Auto operation (Heat recovery 3-pipe combination systems only) (a) If “Auto” mode is selected by the remote control, the heating and the cooling are automatically switched according to the difference between outdoor air temperature and setting temperature and the difference between setting temperature and return air temperature.
  • Page 53 '16 • PAC-T-251 '17 • KX-T-259 (ii) Regardless of the setting temperature, the cooling or heating operation mode is judged according to the "Judgment based on Room temperature/Cooling or Heating and Outdoor temperature/Cooling or Heating". 1)   I n case of "Room temperature/Cooling < Indoor return air temperature" and "Outdoor temperature/Cooling < Outdoor air tem perature"...
  • Page 54 '16 • PAC-T-251 '17 • KX-T-259 Timer operation (a) RC-EX3 Sleep timer Set the time from the start to stop of operation. The time can be selected in the range from 30 to 240 minutes (in the unit of 10-minute). Note (1) Enable the “Sleep timer”...
  • Page 55 '16 • PAC-T-251 '17 • KX-T-259 Hot start (Cold draft prevention at heating) (a) Operating conditions When either one of following conditions is satisfied, the hot start control is performed. (i) From stop to heating operation (ii) From cooling to heating operation (iii) From heating thermostat OFF to ON (iv) After completing the defrost operation (only on units with thermostat ON) Contents of operation...
  • Page 56 '16 • PAC-T-251 '17 • KX-T-259 Auto swing control Note Even if [Auto Swing] is selected, the louver position with anti draft function is fixed to position 1. (a) RC-EX3 Louver control o operate the swing louver when the air-conditioner is operating, press the “Direction” button on the TOP screen of remote control.
  • Page 57 '16 • PAC-T-251 '17 • KX-T-259 Thermostat operation (a) Cooling (i) Thermostat is operated with the room temperature control. (ii) Thermostat is turned ON or OFF relative to the set room temperature as shown below. Thermostat ON Temperature drop Thermostat OFF Temperature rise Set room temperature (iii) Thermostat is turned ON when the room temperature is in the range of -1 <...
  • Page 58 '16 • PAC-T-251 '16 • PAC-T-251 '17 • KX-T-259 (d) Fan control during cooling thermostat OFF (d) Fan control during cooling thermostat OFF (i) Following fan controls during the cooling thermostat OFF can be selected with the indoor function setting of the wired (i) Following fan controls during the cooling thermostat OFF can be selected with the indoor function setting of the wired remote control.
  • Page 59 the microcomputer of indoor unit become ineffective. '16 • PAC-T-251 (14) Cooling, dehumidifying frost protection '17 • KX-T-259 To prevent frosting during cooling mode or dehumidifying mode operation, the of compressor speed is reduced if the indoor heat exchanger temperature (detected with Thi-R) drops to 1.0 °C or lower at 4 minutes after the start of Operation check mode compressor operation.
  • Page 60 Remote control (2) Unit No. may be set at random unless duplicated, it should be better to set orderly like 0, 1, 2…, F to avoid mistake. (b) Display to the remote control '17 • KX-T-259 (i) Central or each remote control basis, heating preparation: the smallest unit No. among the operating units in the remote mode (or the center mode unless the remote mode is available) is displayed.
  • Page 61 ④ ⑤ Cooling/heating selection level CnT ⑤ /CnTA ① CnT ⑤ /CnTA ② CnT ⑤ /CnTA ③※ CnT ⑤ /CnTA ④ CnT ⑤ CnT ⑤ CnT ⑤ /CnTA ⑦ ⑥ Cooling/heating selection pulse CnT ⑥ /CnTA ① CnT ⑥ /CnTA ② CnT ⑥...
  • Page 62 '17 • KX-T-259 (c) Emergency stop signal processing When the external signal input is used to stop operation, the remote stop signal is input at CnT or CnTA. This input is effective only on indoor units which can receive it. Where two or more indoor units are controlled with a wired remote control on the system, on which the external input is set at the “Same operation on all units”, if the stop signal is input at CnT on an indoor unit, all units connected to the wired remote control can be controlled collectively.
  • Page 63 ① When card key switch is ON (Operation permission), the unit starts operation in conjunction with ON signal. and also start/stop operation of the unit from the wired remote control becomes available. ② When card key switch is OFF (Operation prohibition), the unit stops operation in conjunction with OFF signal, and '17 •...
  • Page 64 Operation permission permission Operation permission/ Operation( ) prohibition zone permission ( ※ ) Operation prohibition zone is determined by the OR judgment between CnT operation prohibition zone and CnTA '16 • PAC-T-251 '17 • KX-T-259 operation prohibition zone. (c) In case of CnT ③ operation permission/prohibition level > CnTA ② operation/stop pulse (19) Temporary stop input CnTA In case of temporary stop, operation lamp of remote control lights, but indoor/outdoor unit stop the operation.
  • Page 65 ⑥ Pulse Heating Cooling/heating Auto Cooling Cooling Heating Cooling/heating Auto Cooling Cooling '17 • KX-T-259 (Competitive) ↑Set “Cooling/ ↑Auto, cooling, dry mode command ↑Auto, heating mode Heating” “Pulse” by remote control command by remote control Notes (1) Regarding the priority order for combinations of CnT and CnTA, refer to Page 59. (21) Room temperature detection temperature compensation during heating With the standard the compressor is turned ON/OFF with the thermostat setting temperature.
  • Page 66 '17 • KX-T-259 Operation mode Branching Outdoor unit control (Indoor unit) (Remote control) (i) Set the indoor unit 10 as the “Master” from the remote control Ra. (ii) Set each of indoor units 11 – 13 as the “Slave” from the remote controls Rb – Rd. (iii) Set the operation mode at cooling for the indoor unit 10 from the remote control Ra.
  • Page 67 When the fan is used for circulation, the unit is operated as follows depending on the setting with the remote control. If the invalid is selected with the remote control, the fan is operated continuously during the fan operation. (mormal fan mode) '17 •...

  • Page 68: System Troubleshooting Procedure

    '17 • KX-T-259 9. SYSTEM TROUBLESHOOTING PROCEDURE 9.1 Basics of troubleshooting Basic troubleshooting is to check/analyze/save data by connecting the Mente PC. Whenever arriving at the site, always connect the Mente PC before starting work. Method of error data analysis (Basic procedure) •...

  • Page 69: Contents Of Troubleshooting

    '17 • KX-T-259 '14 • KX-T-222 9.2 Contents of troubleshooting 9.2 Contents of troubleshooting (1) List of inspection displays (indoor units) (a) List of inspection displays (indoor units) Remote control Name of inspection Classification Page error code None Operates but does not cool System error System error None...
  • Page 70 '17 • KX-T-259 (2) Troubleshooting Green Error code Content Keeps flashing Stays OFF None Indoor Operates but does not cool Remote control: Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Check the indoor fan operation. Check the temperature difference between return and suction air of indoor unit.
  • Page 71 '17 • KX-T-259 Green Content Error code Keeps flashing Stays OFF Indoor None Operates but does not heat Remote control: Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Check the indoor fan operation. Check the temperature difference between return and suction air of indoor unit.
  • Page 72 '17 • KX-T-259 Green Content Error code – – Indoor None Excessive noise/vibration (1/3) Remote control: – – Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure If excessive noise/vibration persists when sufficient time has elapsed after Does noise/ vibration occur during stopping the unit, it is or soon after stopping...
  • Page 73 '17 • KX-T-259 Green Content Error code – – Indoor None Excessive noise/vibration (2/3) Remote control: – – Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure From previous page Rearrange the piping to Are the pipes avoid contact with the contacting with the casing.
  • Page 74 '17 • KX-T-259 Green Content Error code – – Indoor None Excessive noise/vibration (3/3) Remote control: – – Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure From previous page If insufficient cooling/ [Adjustment heating problem happens during commissioning] due to anomalous operating Does noise/vibration occur when the conditions at cooling...
  • Page 75 '17 • KX-T-259 Green Content Error code Louver motor failure Keeps flashing Stays OFF Indoor None Remote control: Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure � Check at the indoor unit side. Operate after waiting for more than 1 minute.
  • Page 76 '17 • KX-T-259 Green Power source system anomaly Content Error code Stays OFF Stays OFF Indoor None Remote control: (Power source to indoor unit PCB) Stays OFF 2-time flash Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure AC 220-240V detected between L-N on the indoor terminal block?
  • Page 77 '17 • KX-T-259 Green Content Error code Power source system error Keeps flashing Stays OFF Indoor None Remote control: (Power source to remote control) Keeps flashing 2-time flash Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the connection of the Correct.
  • Page 78 '17 • KX-T-259 Green Content Error code WAIT Keeps flashing Stays OFF Indoor WAIT Remote control: Keeps flashing Keeps flashing Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (In case that is kept WAIT on displaying on the remote control for more than 2 minutes is kept on WAIT...
  • Page 79 '17 • KX-T-259 Green Content Error code Keeps flashing Stays OFF Indoor Remote control: WAIT WAIT Keeps flashing Keeps flashing Outdoor 5. Troubleshooting 1. Applicable model FDC224, 280KXZPE1 only Diagnosis Countermeasure (In case of fuse blown, how to check the unit before replacement of fuse.) Isn't there any short circuit...
  • Page 80 '17 • KX-T-259 Green Content Error code Keeps flashing Stays OFF Indoor Remote control: WAIT WAIT Keeps flashing Keeps flashing Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (No display on the remote control after power ON.) No display on the remote control after power ON.
  • Page 81 '17 • KX-T-259 Green Content Error code Keeps flashing Stays OFF Indoor Remote control: WAIT WAIT Keeps flashing Keeps flashing Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (In case that is kept WAIT on displaying on the remote control for more than 2 minutes is kept on WAIT...
  • Page 82 '17 • KX-T-259 Green Content Error code Stays OFF Stays OFF Indoor Remote control: WAIT WAIT Stays OFF Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (In case that LED on outdoor control PCB stays OFF.) In case that LED on outdoor control PCB stays OFF.
  • Page 83 '17 • KX-T-259 Green Content Error code Stays OFF Stays OFF Indoor Remote control: WAIT WAIT Stays OFF Stays OFF Outdoor 5. Troubleshooting 1. Applicable model FDC224, 280KXZPE1 only Diagnosis Countermeasure (In case of fuse blown, how to check the unit before replacement of fuse.) From previous page.
  • Page 84 '17 • KX-T-259 Green Content Error code Stays OFF Stays OFF Indoor Remote control: [No display] [No display] Stays OFF Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure (No display on the remote control after power ON.) No display on the remote control after power ON.
  • Page 85 '17 • KX-T-259 Green Content Error code Remote control Keeps flashing Stays OFF Indoor Remote control: communication error Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is it possible to Malfunction by temporary reset normally by the power noise.
  • Page 86 '17 • KX-T-259 Green Content Error code Keeps flashing Keeps flashing Indoor Duplicated indoor unit address Remote control: Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the number of Review number of connected indoor units up connected units.
  • Page 87 '17 • KX-T-259 Green Content Error code Keeps flashing 2-time flash Indoor E3/5 Outdoor unit signal line error Remote control: Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure E3 is a communication error that occurs when communication between indoor and outdoor units is not established at all.
  • Page 88 '17 • KX-T-259 Green Content Error code Keeps flashing *See below Indoor Communication error during operation Remote control: Keeps flashing 2-time flash Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure * In case that indoor red LED flashes 2 times Note (1) Check the connection (disconnection, looseness) of signal wires at outdoor terminal block.
  • Page 89 '17 • KX-T-259 Green Indoor heat exchanger Content Error code Keeps flashing 1-time flash Indoor Remote control: temperature thermistor anomaly (Thi-R) Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Insert the connector the connector of thermistor connected securely.
  • Page 90 '17 • KX-T-259 Green Indoor return air Content Error code Keeps flashing 1-time flash Indoor Remote control: temperature thermistor anomaly (Thi-A) Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure the connector of Insert the connector thermistor connected securely.
  • Page 91 '17 • KX-T-259 Green Content Error code Excessive number of indoor units (more than 17 units) Keeps flashing Stays OFF Indoor Remote control: by controlling one remote control Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Aren't more...
  • Page 92 '17 • KX-T-259 Green Green Error code Content Content Error code Address setting error between Address setting error between Keeps flashing Stays OFF Indoor Remote control: Remote control: master and slave indoor units master and slave indoor units Indoor Keeps flashing Keeps flashing Keeps flashing Stays OFF Outdoor 5.
  • Page 93 '17 • KX-T-259 Green Content Error code Address setting error Keeps flashing Keeps flashing Indoor Remote control: by mixed setting method Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Isn't the automatic setting and Review address setting.
  • Page 94 '17 • KX-T-259 Green Content Error code Indoor DC fan motor anomaly Keeps flashing 1-time flash Indoor Remote control: Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Does any foreign material Remove foreign material. intervene in rotational area of fan propeller? 2.
  • Page 95 '17 • KX-T-259 Green Content Error code Address setting error of Keeps flashing 1-ime flash Indoor Remote control: master and slave indoor units Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the address setting for the master indoor Correct the address setting of unit correct?
  • Page 96 '17 • KX-T-259 Green Content Error code Indoor unit operation Keeps flashing 1-time flash Indoor Remote control: check mode anomaly Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure E19 occurs when the power ON Is SW7-1 Indoor unit control PCB on the indoor control...
  • Page 97 '17 • KX-T-259 Green Content Error code Indoor DC fan motor rotation Keeps flashing 1-time flash Indoor Remote control: speed anomaly Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Does any foreign material Remove foreign material. intervene in rotational area of fan propeller? 2.
  • Page 98 '17 • KX-T-259 Green Content Error code Remote control Keeps flashing Stays OFF Indoor Remote control: temperature thermistor anomaly (Thc) Keeps flashing Stays OFF Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure the connector of Insert the connector thermistor connected securely.
  • Page 99 '17 • KX-T-259 Green Content Error code Keeps flashing Stays OFF Indoor Remote control: Emergency stop 7-segment display: – Keeps flashing 1-time flash Outdoor 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Check and save the data of operating conditions. Save data for 30 minutes before stopping in Mente PC.

  • Page 100: Instruction Of How To Replace Pcb

    '17 • KX-T-259 9.3 Instruction of how to replace PCB PHA012D050AA (1) FDK22-56KXZE1 SAFETY PRECAUTIONS SAFETY PRECAUTIONS ● Read the "SAFETY PRECAUTIONS" carefully first of all and then strictly follow it during the replacement in order to protect yourself. Read the "SAFETY PRECAUTIONS" carefully first of all and then strictly follow it during the replacement in order to protect yourself. ●...
  • Page 101 '17 • KX-T-259 PHA012D051AA (2) FDK71KXZE1 SAFETY PRECAUTIONS SAFETY PRECAUTIONS ● ● Read the "SAFETY PRECAUTIONS" carefully first of all and then strictly follow it during the replacement in order to protect yourself. Read the "SAFETY PRECAUTIONS" carefully first of all and then strictly follow it during the replacement in order to protect yourself. ●...

  • Page 102: Indoor Pcb Setting

    '17 • KX-T-259 10.4 Indoor PCB setting 9.4 Indoor PCB setting Code Input Default setting Remarks Indoor unit address No.(Order of 10) Indoor unit address No.(Order of 1) Outdoor unit address No.(Order of 10) Outdoor unit address No.(Order of 1) SW5-1 Superlink selection Automatic*/Previous SL...

  • Page 103: Option Parts

    '17 • KX-T-259 PHA012D049 WIRELESS REMOTE RCN-K-E2 RCN-K71-E2 201612 CONTROLLER&RECEIVER 10. OPTION PARTS INSTALLATION MANUAL 10.1 Wireless kit (RCN-K-E2･RCN-K71-E2) PHA012D049 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. WARNING Failure to follow these instructions properly may result in serious consequences such as death, severe injury, etc.
  • Page 104 '17 • KX-T-259 WARNING 01612 ● Do not wash the unit with water. It could cause electric shocks, or break-down. ● Use the cables for wiring, and connect them securely with care to protect electronic parts from external forces. Improper connections or could cause heat generation, etc.
  • Page 105 It could cause electric shocks. '17 • KX-T-259 ② ③ Preparation before installation ② Setting on site Prevents interference ON : Normal OFF : Customized during plural setting Receiver master/slave PCB on the receiver has the ON : Master OFF : Slave setting following switches to set the function.
  • Page 106 '17 • KX-T-259 ③ How to install the receiver (continued) ② Install Display Assy on Indoor unit (a) Remove the control cover, and then louver wiring can be removed to CnJ1 on the PWB. (b) Remove the louver wiring hanging on Display Holder. (c) Remove the latches of Display Holder and then display holder can be removed.
  • Page 107 '17 • KX-T-259 ③ ④ How to install the receiver (continued) In the case of Right-hand-side piping Display Assy Display Assy disa To d butt * No Control Assy Control Assy Type 15 - 56 Type 71, 90 ④ Install the front panel 1.
  • Page 108 '17 • KX-T-259 ④ Wireless remote control (continued) Changing the remote control setting How to change the Auto Run setting The Auto Run mode is not available on the building air-conditioning and gas heat pump series (excluding the cooling/heating free multi system). When using the remote control to operate those models, set the remote control to disable the Auto Run mode.
  • Page 109 Cutting '17 • KX-T-259 ⑤ ⑤ Receiver (continued) 3. Set the indoor unit and outdoor unit numbers by manually specifying the addresses. Use the rotary switchs SW1 and SW2 provided on the indoor unit PCB (printed circuit board) to set the A ba indoor unit numbers so that they are not duplicated.
  • Page 110 Within 2.0 mm² × 600m [0] to [F] so as not to duplicate. '17 • KX-T-259 ⑤ Receiver (continued) Backup button A backup switch is provided on the receiver section of the panel surface. When operation from the wireless remote control unit is not possible (due to flat batteries, a mislaid unit, a unit failure), you can use it as an emergency means.

  • Page 111: Simple Wired Remote Control (Rch-E3)

    '17 • KX-T-259 10.2 Simple wired remote control (RCH-E PJZ000Z272 Names and functions of sections Remote control sensor ON/OFF button Operation/Inspection lamp Button to start/stop the air � conditioner During operation: Green failure: Red MODE button Use to select the mode. FAN SPEED button Button to set the fan speed TEMP button...
  • Page 112 '17 • KX-T-259 MITSUBISHI HEAVY INDUSTRIES,LTD. AIR-CONDITIONING & REFRIGERATION SYSTEMS HEADQUARTERS In case of embedding wiring Remote control installation dimensions Wall surface Wiring Wiring outlet Electrical box (In case of embedding wiring) （Prepare on site） 12×7 slot hole Installation hole 9×4.5 slot hole （2 places）...
  • Page 113 '17 • KX-T-259 In case of exposing cord Simple Remote Control Installation Manual PJZ012D069 ⑴   M ake certain to remove a screw on the bottom surface of the remote control. Read together with indoor unit's installation manual. WARNING ⑴ ●   F asten the wiring to the terminal securely and hold the cable securely so as not to apply Screw ⑵ Remove the upper case of the remote control.
  • Page 114 '17 • KX-T-259 3. Master/ slave setting when more than one remote control are used ⑴   U p to two remote controls can be connected to one unit (or one group) of indoor unit. Switch Setting Function detail Slave remote control indoor unit SW1-1 Master remote control...
  • Page 115 connecting section. Be careful about contact failure. unit. (No polarity of X and Y) 100 - 200m･････････････････0.5mm × 2 cores Under 300m･････････････････0.75mm × 2 cores ⑹   M ount the upper case for restoring to its former state so as not to crimp the remote control cord, Under 400m･････････････････1.25mm ×...
  • Page 116 ct failure. “88” blinks on the temperature setting indicator. (blinking for approximately 2 to 10 seconds while × 2 cores AIR CON No. data is read) Then, the return air temperature is displayed. When is pressed, return × 2 cores to the indoor unit selection display (example, “U 000”).
  • Page 117 Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. Copyright MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. Copyright MITSUBISHI HEAVY INDUSTRIES, LTD.

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