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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names]
PLFY-M20VEM6-E
PLFY-M20VEM6-ER
PLFY-M20VEM6-ET
PLFY-M25VEM6-E
PLFY-M25VEM6-ER
PLFY-M25VEM6-ET
PLFY-M32VEM6-E
PLFY-M32VEM6-ER
PLFY-M32VEM6-ET
PLFY-M40VEM6-E
PLFY-M40VEM6-ER
PLFY-M40VEM6-ET
PLFY-M50VEM6-E
PLFY-M50VEM6-ER
PLFY-M50VEM6-ET
PLFY-M63VEM6-E
PLFY-M63VEM6-ER
PLFY-M63VEM6-ET
PLFY-M71VEM6-E
PLFY-M71VEM6-ER
PLFY-M71VEM6-ET
PLFY-M80VEM6-E
PLFY-M80VEM6-ER
PLFY-M80VEM6-ET
PLFY-M100VEM6-E
PLFY-M100VEM6-ER
PLFY-M100VEM6-ET
PLFY-M125VEM6-E
PLFY-M125VEM6-ER
PLFY-M125VEM6-ET
Model name
indication for
MAIN UNIT
INDOOR UNIT
WIRELESS REMOTE
CONTROLLER
(Option)
[Service Ref.]
PLFY-M20VEM6-E.UK
PLFY-M20VEM6-ER.UK
PLFY-M20VEM6-ET.UK
PLFY-M25VEM6-E.UK
PLFY-M25VEM6-ER.UK
PLFY-M25VEM6-ET.UK
PLFY-M32VEM6-E.UK
PLFY-M32VEM6-ER.UK
PLFY-M32VEM6-ET.UK
PLFY-M40VEM6-E.UK
PLFY-M40VEM6-ER.UK
PLFY-M40VEM6-ET.UK
PLFY-M50VEM6-E.UK
PLFY-M50VEM6-ER.UK
PLFY-M50VEM6-ET.UK
PLFY-M63VEM6-E.UK
PLFY-M63VEM6-ER.UK
PLFY-M63VEM6-ET.UK
PLFY-M71VEM6-E.UK
PLFY-M71VEM6-ER.UK
PLFY-M71VEM6-ET.UK
PLFY-M80VEM6-E.UK
PLFY-M80VEM6-ER.UK
PLFY-M80VEM6-ET.UK
PLFY-M100VEM6-E.UK
PLFY-M100VEM6-ER.UK
PLFY-M100VEM6-ET.UK
PLFY-M125VEM6-E.UK
PLFY-M125VEM6-ER.UK
PLFY-M125VEM6-ET.UK
Model name
indication for GRILLE
WIRED REMOTE
CONTROLLER
(Option)
REVISED EDITION-A
R32/R410A
Revision:
• PLP-6EAB has been added
in REVISED EDITION-A.
OCH793 is void.
CONTENTS
1. SAFETY PRECAUTION ······················· 2
2. PARTS NAMES AND FUNCTIONS ········ 7
3. SPECIFICATIONS ······························ 8
4. 4-WAY AIRFLOW SYSTEM ················ 14
5. OUTLINES AND DIMENSIONS ··········· 17
6. WIRING DIAGRAM ··························· 18
8. TROUBLESHOOTING ······················· 20
9. SPECIAL FUNCTION ························ 28
10. DISASSEMBLY PROCEDURE ············ 31
11. REMOTE CONTROLLER ··················· 38
PARTS CATALOG (OCB793)
July 2023
No. OCH793
Grille model
[Model names]
PLP-6EA
PLP-6EAE
PLP-6EAL
PLP-6EALE
PLP-6EAJ
PLP-6EAJE
PLP-6EALM
PLP-6EALME
PLP-6EAB
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Table of Contents
Related Manuals for Mitsubishi Electric CITY MULTI PLFY-M20VEM6-E
Summary of Contents for Mitsubishi Electric CITY MULTI PLFY-M20VEM6-E
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Page 1: Table Of Contents
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS July 2023 No. OCH793 TECHNICAL & SERVICE MANUAL REVISED EDITION-A R32/R410A Indoor unit [Model names] [Service Ref.] PLFY-M20VEM6-E.UK PLFY-M20VEM6-E PLFY-M20VEM6-ER.UK PLFY-M20VEM6-ER Revision: PLFY-M20VEM6-ET PLFY-M20VEM6-ET.UK • PLP-6EAB has been added PLFY-M25VEM6-E PLFY-M25VEM6-E.UK in REVISED EDITION-A. PLFY-M25VEM6-ER PLFY-M25VEM6-ER.UK PLFY-M25VEM6-ET.UK PLFY-M25VEM6-ET... -
Page 2: Safety Precaution
SAFETY PRECAUTION MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit. WARNING Read the OPERATION MANUAL carefully before operation. Service personnel are required to carefully read the OPERATION MANUAL and INSTALLATION MANUAL before operation. Further information is available in the OPERATION MANUAL, INSTALLATION MANUAL, and the like. -
Page 3: Cautions For Service
[1] Warning for service (1) Do not alter the unit. (2) For installation and relocation work, follow the instructions in the Installation Manual and use tools and pipe components specifically made for use with refrigerant specified in the outdoor unit installation manual. (3) Ask a dealer or an authorized technician to install, relocate and repair the unit. - Page 4 [4] Cautions for unit using R32 refrigerant Basic work procedures are the same as those for conventional units using refrigerant R410A. However, pay careful attention to the following points. (1) Information on servicing (1-1) Checks on the Area Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized.
- Page 5 (3) Repair to intrinsically Safe Components Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmos- phere.
- Page 6 a) Become familiar with the equipment and its operation. b) Isolate system electrically. c) Before attempting the procedure, ensure that: • mechanical handling equipment is available, if required, for handling refrigerant cylinders; • all personal protective equipment is available and being used correctly; •...
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Page 7: Parts Names And Functions
Unit Electronic weighing scale [5] Service tools Use the below service tools as exclusive tools for R32/R410A refrigerant. Refer to the spec name plate on outdoor unit for the type of refrigerant being used. Tool name Specifications · Use the existing fitting specifications . (UNF1/2) Gauge manifold ·... -
Page 8: Specifications
SPECIFICATIONS 3-1. SPECIFICATIONS Model PLFY-M20VEM6-E.UK PLFY-M25VEM6-E.UK PLFY-M32VEM6-E.UK PLFY-M40VEM6-E.UK PLFY-M50VEM6-E.UK PLFY-M20VEM6-ER.UK PLFY-M25VEM6-ER.UK PLFY-M32VEM6-ER.UK PLFY-M40VEM6-ER.UK PLFY-M50VEM6-ER.UK PLFY-M20VEM6-ET.UK PLFY-M25VEM6-ET.UK PLFY-M32VEM6-ET.UK PLFY-M40VEM6-ET.UK PLFY-M50VEM6-ET.UK Power source 220–240 V 50 Hz / 220 V 60 Hz Cooling capacity (Nominal) kcal/h 1,900 2,400 3,100 3,900 4,800 Btu/h 7,500 9,600 12,300... - Page 9 Model PLFY-M63VEM6-E.UK PLFY-M71VEM6-E.UK PLFY-M80VEM6-E.UK PLFY-M100VEM6-E.UK PLFY-M125VEM6-E.UK PLFY-M63VEM6-ER.UK PLFY-M71VEM6-ER.UK PLFY-M80VEM6-ER.UK PLFY-M100VEM6-ER.UK PLFY-M125VEM6-ER.UK PLFY-M63VEM6-ET.UK PLFY-M71VEM6-ET.UK PLFY-M80VEM6-ET.UK PLFY-M100VEM6-ET.UK PLFY-M125VEM6-ET.UK Power source 220–240 V 50 Hz / 220 V 60 Hz Cooling capacity 11.2 14.0 kcal/h 6,100 6,900 7,700 9,600 12,000 (Nominal) Btu/h 24,200 27,300 30,700 38,200...
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Page 10: Electrical Parts Specifications
3-2. ELECTRICAL PARTS SPECIFICATIONS Model name PLFY-M20VEM6-E.UK PLFY-M25VEM6-E.UK PLFY-M32VEM6-E.UK PLFY-M40VEM6-E.UK PLFY-M50VEM6-E.UK Symbol PLFY-M20VEM6-ER.UK PLFY-M25VEM6-ER.UK PLFY-M32VEM6-ER.UK PLFY-M40VEM6-ER.UK PLFY-M50VEM6-ER.UK Parts name PLFY-M20VEM6-ET.UK PLFY-M25VEM6-ET.UK PLFY-M32VEM6-ET.UK PLFY-M40VEM6-ET.UK PLFY-M50VEM6-ET.UK Room temperature TH21 Resistance 0°C/15 kΩ, 10°C/9.6 kΩ, 20°C/6.3 kΩ, 25°C/5.4 kΩ, 30°C/4.3 kΩ, 40°C/3.0 kΩ thermistor Liquid pipe thermistor TH22... -
Page 11: Sound Pressure Level
3-3. SOUND PRESSURE LEVEL PLFY-M·VEM6-E/ER/ET.UK Sound pressure level at anechoic room : Low-Mid2-Mid1-High Model name Sound pressure level dB (A) PLFY-M20VEM6-E.UK PLFY-M20VEM6-ER.UK PLFY-M20VEM6-ET.UK 24 - 26 - 27 - 29 PLFY-M25VEM6-E.UK PLFY-M25VEM6-ER.UK PLFY-M25VEM6-ET.UK PLFY-M32VEM6-E.UK PLFY-M32VEM6-ER.UK PLFY-M32VEM6-ET.UK 26 - 27 - 29 - 31 PLFY-M40VEM6-E.UK PLFY-M40VEM6-ER.UK PLFY-M40VEM6-ET.UK... - Page 12 3-4. NC CURVES PLFY-M20VEM6-E/ER/ET.UK PLFY-M32VEM6-E/ER/ET.UK NOTCH SPL(dB) LINE NOTCH SPL(dB) LINE High High PLFY-M25VEM6-E/ER/ET.UK PLFY-M40VEM6-E/ER/ET.UK Medium1 Medium1 <Cooling&Heating> <Cooling&Heating> Medium2 Medium2 NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF THRESHOLD OF HEARING FOR HEARING FOR NC-20 NC-20 CONTINUOUS...
- Page 13 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF THRESHOLD OF HEARING FOR HEARING FOR NC-20 NC-20 CONTINUOUS CONTINUOUS NOISE NOISE 1000 2000 4000 8000 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz PLFY-M71VEM6-E/ER/ET.UK PLFY-M80VEM6-E/ER/ET.UK NOTCH SPL(dB) LINE NOTCH SPL(dB) LINE...
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Page 14: Way Airflow System
4-WAY AIRFLOW SYSTEM 4-1. PLACEMENT OF THE AIR OUTLETS • For this grille, the blowout direction comes in 11 patterns. Also, by setting switch on the controller board to the appropriate settings, you can adjust the airflow and speed. Select the settings from Table1 according to the location in which you want to install the unit. - Page 15 4-2. BRANCH DUCT HOLE AND FRESH AIR INTAKE HOLE At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when required. • A fresh air intake hole for the optional multi-functional casement can also be made. Note: The figures marked with * in the drawing below represent the dimensions of the main unit excluding those of the optional multi-functional casement.
- Page 16 4-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS PLFY-M20/25/32/40VEM6-E/ER/ET Taking air into the unit Multi-functional casement + Standard filter 2 - inlet −25 −50 −50 −100 −75 1 - inlet −100 −150 −125 −200 −150 Airflow rate [m /min] Airflow rate [m /min] How to read curves...
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Page 17: Outlines And Dimensions
OUTLINES AND DIMENSIONS Unit: mm OCH793A... -
Page 18: Wiring Diagram
WIRING DIAGRAM OCH793A... -
Page 19: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM Refrigerant flow in cooling Refrigerant flow in heating Pipe temperature detection Strainer (#100mesh) thermistor/gas TH23 Gas pipe Pipe temperature detection thermistor/liquid TH22 Flare connection Liquid pipe Heat exchanger Linear expansion valve Strainer1 (#50mesh) Strainer2 (#100mesh) Strainer (#100mesh) Room temperature detection thermistor TH21 Unit : mm (inch) Service Ref. -
Page 20: Troubleshooting
TROUBLESHOOTING 8-1. HOW TO CHECK THE PARTS Parts name Checkpoints Room temperature Disconnect the connectors, then measure the resistance with a multimeter. detection thermistor (TH21) (At ambient temperatures of 10 to 30:) Pipe temperature detection Normal Abnormal thermistor/liquid (TH22) (Refer to “8-1-1. Thermistor”.) 4.3–9.6 k"... - Page 21 8-1-1. Thermistor <Thermistor characteristic graph> < Thermistor for lower temperature > Thermistors for Room temperature detection thermistor lower temperature (TH21) Pipe temperature detection thermistor/liquid (TH22) Pipe temperature detection thermistor/gas (TH23) Thermistor R =15 kΩ ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480 ( 273+t 0°C...
- Page 22 <Output pulse signal and the valve operation> Output Output (Phase) The output pulse shifts in the following order. Closing a valve : 1 → 2 → 3 → 4 → 1 ø1 Opening a valve : 4 → 3 → 2 → 1 → 4 ø2 Note: ·...
- Page 23 8-1-3. DC Fan motor (fan motor/indoor controller board) Check method of indoor fan motor (fan motor/indoor controller board) Notes · High voltage is applied to the connector (CNMF) for the fan motor. Pay attention to the service. · Do not pull out the connector (CNMF) for the motor with the power supply on. (It causes trouble of the indoor controller board and fan motor.) Self check Conditions : The indoor fan cannot rotate.
- Page 24 8-2. FUNCTION OF DIP SWITCH The black square (■) indicates a switch position. Operation by switch Effective Switch Pole Function Remarks timing Thermistor < Room temperature Built-in remote controller Indoor unit <Initial setting> detection> position <Initial setting> Filter clogging detection Provided Not provided Filter cleaning...
- Page 25 Operation by switch Effective Switch Pole Function Remarks timing Address setting should be done SW11 <Initial setting> 1s digit SW12 SW11 when M-NET remote controller address is being used. SW12 SW11 setting SW12 10s digit Before address setting power supply This is the switch to be used SW14 <Initial setting>...
- Page 26 Operation by switch Effective Switch Pole Function Remarks timing <Initial setting> Function ─ ─ ─ ─ ─ ─ 3 Pair No. of wireless remote controller Depends on the combination 4 Pair No. of wireless remote controller of SW22-3 and 22-4 •...
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Page 27: Test Point Diagram
8-3. TEST POINT DIAGRAM Indoor controller board TB15 MA-Remote controller connecting wire Vane motor output – : 8.7–13 VDC (Pin (+)) 12 VDC pulse SW21 M-NET transmission connecting wire Ceiling height and discharge outlet 24–30 VDC (non-polar) number selector SW14 Branch No. -
Page 28: Special Function
SPECIAL FUNCTION 9-1. OPERATION (AUTOMATIC FILTER ELEVATION GRILLE: PLP-6EAJ/PLP-6EAJE) (1) Normal operation String 1b 1 UP/DOWN UP/DOWN UP/DOWN Air intake grille is raised/lowered by Machine 1 Machine 2 commands of UP and DOWN. Air intake grille does not move under the state of no-load detection or obstacle detection. - Page 29 9-2. ELECTRICAL CIRCUIT (Controller board and wiring diagram (Panel)) 9-2-1 DIP SW LED4 LED2 [ LEGEND ] SYMBOL NAME [EMERGENCY OPERATION] ELEVATION PANEL CONTROLLER BOARD 1. If the wireless remote controller for ELEVATION PANEL is faulty or lost, operation LED ORANGE LED2 will be possible using the emergency up/down switch at the wireless signal receiver (INTAKE GRILLE CONDITION (See table *1))
- Page 30 9-3. TROUBLESHOOTING Problem Possible Reason Corrective Action Intake grille does not function Air-conditioner is running. Stop running the air-conditioner and try again. with operation of the remote After recovering from power failure, try again. Power failure controller. Batteries are not inserted into the wireless remote Install or replace the battery.
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Page 31: Disassembly Procedure
DISASSEMBLY PROCEDURE Be careful when removing heavy parts. : Indicates the visible parts in the photos/figures. OPERATING PROCEDURE PHOTOS/FIGURES 1. Removing the filter Figure 1 Knob Air intake grille (1) Slide the knob of air intake grille toward the arrow to open the air intake grille. - Page 32 OPERATING PROCEDURE PHOTOS/FIGURES 4. Removing the room temperature thermistor (TH21) Photo 3 (1) Remove the electrical box cover. (See Photo 1 and 2) Room temperature (2) Disconnect the connector CN20 (Red) from the indoor detection thermistor controller board. Indoor controller board (3) Remove the room temperature thermistor with its holder.
- Page 33 Be careful when removing heavy parts. OPERATING PROCEDURE PHOTOS/FIGURES Bell mouth fixing screws 6. Removing the electrical box Photo 6 (1) Remove the electrical box cover (See Photo 1 and 2) and the connectors (Refer to procedure 5). (2) Remove the electrical box fixing screws (M5×10: 2 Bell mouth screw).
- Page 34 OPERATING PROCEDURE PHOTOS/FIGURES Photo 10 8. Removing the fan motor (MF) (1) Remove the turbo fan. (See Photo 8 and refer to Nuts and washers procedure 7) Rubber mounts (2) Remove the lead cover (tapping screw 4×10: 2 screws). (See Photo 10) (3) Loosen the 2 clamps.
- Page 35 OPERATING PROCEDURE PHOTOS/FIGURES 10. Removing the drain pan Photo 13 (1) Remove the electrical box. (See photo 3 and refer to procedure 6) Drain pan (2) Remove the bell mouth (tapping screw 4×10 : 2 screws). (See Photo 6) (3) Remove the drain pan (screw M5×10: 4 screws). Drain pan Drain pan fixing screws...
- Page 36 OPERATING PROCEDURE PHOTOS/FIGURES 12. Removing the drain pump (DP) Photo 15 (1) Remove the drain pan. (Refer to procedure 10) Float switch (2) Cut the hose band and remove the hose. Drain pump (3) Loosen the clamp of the drain pump. (4) Remove the drain pump (tapping screw 4×10: 2 screws/2 hooks).
- Page 37 OPERATING PROCEDURE PHOTOS/FIGURES 13. Removing the float switch (FS) Photo 16 (1) Remove the drain pan. (Refer to procedure 10) Do not hold this floating part (2) Loosen the clamp of the drain pump. (See Photo 15) when lifting; Doing so will cause malfunction.
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Page 38: Remote Controller
REMOTE CONTROLLER 11-1. REMOTE CONTROLLER FUNCTIONS <PAR-41MAA> Controller interface The functions of the function buttons change depending on the screen. Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen. When the system is centrally controlled, the button function guide that corresponds to the locked button will not appear. - Page 39 Display The main display can be displayed in two different modes: ˝Full˝ and ˝Basic˝. The initial setting is ˝Full˝. To switch to the ˝Basic˝ mode, change the setting on the Main display setting. (Refer to operation manual included with remote controller.) <Full mode>...
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Page 40: Menu Structure
Menu structure Main menu Press the button. Move the cursor to the desired item with the buttons, and press the button. Operation Vane · 3D i-See · Vent. (Lossnay) High power Comfort Manual vane angle 3D i-See sensor Vertical air direction Horizontal air direction Timer menu Timer... - Page 41 Continue from the previous page. Maintenance menu Error information Filter information Cleaning Auto descending panel Descending operation Descending adjustment Service menu Test run menu Test run Drain pump test run Maintenance information Collect model names and serial No. Model name input Serial No.
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Page 42: Main Menu List
Main menu list Main Setting and display items Setting details menu Operation Vane · 3D i-See · Vent. Vane: Use to set the vertical air direction. (Vane.Vent. (Lossnay)) Louver: Use to set the horizontal air direction. 3D i-See sensor: This setting is available only for the air conditioners that support easy setting function of motion sensing air direction. - Page 43 Main Setting and display items Setting details menu Initial Basic Main/Sub When connecting 2 remote controllers, one of them needs to be designated as setting setting a sub controller. Clock Use to set the current time. Daylight Set the daylight saving time. saving time Administrator The administrator password is required to make the settings for the following...
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Page 44: Controller Interface
<PAR-SL97A-E> Controller interface Transmission area Transmission indicator Remote controller display Timer indicator *For explanation purposes, all of the items that appear in the display are shown. *All items are displayed when the Reset button is pressed. Operation areas ON/OFF button Temperature setting buttons Fan Speed button (Changes fan speed) Timer Off button... - Page 45 <PAR-SL101A-E> Controller interface Transmission area Remote controller display Set Temperature buttons OFF/ON button Mode button (Changes operation mode) Fan Speed button (Changes fan speed) Airflow button (Changes up/ i-see button* down airflow direction) Timer ON button Menu button Timer OFF button SET/SEND button Weekly timer ON/OFF button* CANCEL button...
- Page 46 <PAR-U02MEDA> Controller interface ▌1 Occupancy Sensor The occupancy sensor detects vacancy for energy-save control. ▌2 Brightness Sensor The brightness sensor detects the brightness of the room for energy-save control. ▌3 Temperature & Humidity Sensor The sensor detects the room temperature and the relative humidity. ▌4 LED Indicator The LED indicator indicates the operation status in different colors.
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Page 47: Error Information
11-2. ERROR INFORMATION When an error occurs, the following screen will appear. Check the error status, stop the operation, and consult your dealer. 1. Check code, error unit, refrigerant address, date and time of occur- Error information rence, model name, and serial number will appear. Error code The model name and serial number will appear only if the informa- Error unit... - Page 48 • Checking the error information While no errors are occurring, page 2/2 of the error information can be Maintenance menu viewed by selecting ˝Error information˝ from the Maintenance menu. Error information Filter information Errors cannot be reset from this screen. Cleaning Main menu: Cursor...
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Page 49: Service Menu
11-3. SERVICE MENU Maintenance password is required 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Main Main menu *At the main display, the menu button and select ˝Service˝ to make Service the maintenance setting. 2. When the Service menu is selected, a window will appear asking for the pass- Service menu word. -
Page 50: Test Run Operation
11-4. TEST RUN 11-4-1. PAR-41MAA 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Test run Input maintenance info. Settings Check Others Select ˝Test run˝ with the F1 or F2 button, and press the [ ] button. 2. - Page 51 11-4-2. PAR-SL97A-E Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500 V Megger and check that it is equal to or greater than 1.0 MΩ. TEST RUN 1. Turn on the main power to the unit. TEST RUN 2.
- Page 52 11-4-4. PAR-U02MEDA Test run [MON] 10:45 Test run Fan speed Air direction Address Remain 2:00 ＞ ＞ Pipe ＞ ＞ 9.0°C ＞ ＞ ＞ ＞ Swing Auto Louver LOSSNAY ＞ ＞ ...
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Page 53: Function Setting
11-5. FUNCTION SETTING 11-5-1. PAR-41MAA Settings menu 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Function setting Lossnay Select ˝Setting˝ from the Service menu, and press the [ ] button. Service menu: Cursor Select ˝Function setting˝, and press the [ ] button. - Page 54 11-5-2. PAR-SL97A-E Functions can be selected with the wireless remote controller. Function selection using wireless remote controller is available only for refriger- ant system with wireless function. Refrigerant address cannot be specified by the wireless remote controller. [Flow of function selection procedure] Flow of function selection procedure The flow of the function selection procedure is shown below.
- Page 55 11-5-3. PAR-SL101A-E 1. Going to the function select mode Press the button between of 5 seconds. (Start this operation from the status of remote controller display turned off.) [CHECK] is lit and ˝00˝ blinks. (Fig. 1) Press the button to set the ˝50˝. Direct the wireless remote controller toward the receiver of the indoor unit and press the button.
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Page 56: Error History
11-6. ERROR HISTORY 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Test run Input maintenance info. Settings Check Others Select ˝Check˝ with the F1 or F2 button, and press the [ button. 2. Select ˝Error history˝ with the F1 or F2 button, and press Check menu the [ ] button. -
Page 57: Self-Diagnosis
11-7. SELF-DIAGNOSIS 11-7-1. PAR-41MAA 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Diagnosis Self check Select ˝Check˝ from the Service menu, Remote controller check and press the [ ] button. Service menu: Select ˝Diagnosis˝ from the Check menu, Cursor and press the [ ] button. - Page 58 11-7-2. PAR-SL97A-E When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop. < Malfunction-diagnosis method at maintenance service> Refrigerant [Procedure] address display 1. Press the CHECK button twice. CHECK •...
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Page 59: Remote Controller Check
11-8. REMOTE CONTROLLER CHECK If operations cannot be completed with the remote controller, diagnose the remote controller with this function. 1. Select ˝Service˝ from the Main menu, Diagnosis and press the [ ] button. Self check Remote controller check Select ˝Check˝ from the Service menu, Service menu: and press the [ ] button. - Page 60 11-9. SPECIAL FUNCTION OPERATION SETTING <PAR-U02MEDA> *M-NET remote controller cannot be connected with a refrigerant system which includes branch box. It is necessary to perform “group settings” and “Interlocked LOSSNAY” at making group settings of different refrigerant systems (multiple outdoor unit). (A) Group settings: Enter the indoor unit controlled by the remote controller, check the content of entries, and clear entries, etc.
- Page 61 (a) Group setting Use this screen to register the indoor units and the AHC to be controlled from the controller. 1. Select an indoor unit or an AHC address in the [Address] field. [Group setting] The number of units that can be registered. Indoor unit: 16 units maximum Address AHC: 1 unit maximum...
- Page 62 HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN ©Copyright 2022 MITSUBISHI ELECTRIC CORPORATION Issued: Jul. 2023 No.OCH793 REVISED EDITION-A Published: Jul. 2022 No.OCH793 Specifications are subject to change without notice. Made in Japan...
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