Mitsubishi Electric CITY MULTI PLFY-EP06NEMU1-E Technical & Service Manual

Ceiling cassettes r410a, indoor unit for vrf system, grille

Hide thumbs

Table of Contents

Quick Links

Download this manual

INDOOR UNIT FOR VRF SYSTEM

TECHNICAL & SERVICE MANUAL

Series PLFY

Indoor unit

[Model Name]

PLFY-EP06NEMU1-E

PLFY-EP08NEMU1-E

PLFY-EP12NEMU1-E

PLFY-EP15NEMU1-E

PLFY-EP18NEMU1-E

PLFY-EP24NEMU1-E

PLFY-EP30NEMU1-E

PLFY-EP36NEMU1-E

PLFY-EP48NEMU1-E

Grille model

[Model Name]

PLP-41EAEU

Model name

indication for

MAIN UNIT

INDOOR UNIT

WIRELESS REMOTE

CONTROLLER

(Option)

[Service Ref.]

PLFY-EP06NEMU1-E.TH

PLFY-EP08NEMU1-E.TH

PLFY-EP12NEMU1-E.TH

PLFY-EP15NEMU1-E.TH

PLFY-EP18NEMU1-E.TH

PLFY-EP24NEMU1-E.TH

PLFY-EP30NEMU1-E.TH

PLFY-EP36NEMU1-E.TH

PLFY-EP48NEMU1-E.TH

Model name

indication for GRILLE

RETURN SELECT

HOLD

OFF

WIRED REMOTE

CONTROLLER

(Option)

R410A

Revision:

• Some descriptions have

TCH129 is void.

CONTENTS

1. SAFETY PRECAUTION .......................... 2

2. PARTS NAMES AND FUNCTIONS ........ 4

3. SPECIFICATIONS ................................... 5

4. 4-WAY AIRFLOW SYSTEM .................. 11

5. OUTLINES AND DIMENSIONS ............ 14

6. WIRING DIAGRAM ............................... 15

7. REFRIGERANT SYSTEM DIAGRAM ...... 16

8. MICROPROCESSOR CONTROL ......... 17

9. TROUBLESHOOTING .......................... 24

10. DISASSEMBLY PROCEDURE ............. 32

11. REMOTE CONTROLLER ..................... 37

PARTS CATALOG (TCB129)

January 2024

No. TCH129

REVISED EDITION-A

been modified.

Table of Contents

Need help?

Do you have a question about the CITY MULTI PLFY-EP06NEMU1-E and is the answer not in the manual?

Questions and answers

Summary of Contents for Mitsubishi Electric CITY MULTI PLFY-EP06NEMU1-E

Page 1: Table Of Contents
INDOOR UNIT FOR VRF SYSTEM January 2024 No. TCH129 REVISED EDITION-A TECHNICAL & SERVICE MANUAL Series PLFY R410A Indoor unit [Model Name] [Service Ref.] Revision: PLFY-EP06NEMU1-E.TH • Some descriptions have PLFY-EP06NEMU1-E been modified. PLFY-EP08NEMU1-E.TH PLFY-EP08NEMU1-E TCH129 is void. PLFY-EP12NEMU1-E.TH PLFY-EP12NEMU1-E PLFY-EP15NEMU1-E.TH PLFY-EP15NEMU1-E PLFY-EP18NEMU1-E.TH...
Page 2: Safety Precaution
SAFETY PRECAUTION CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R410A Use the following tools specifically designed for Do not use the existing refrigerant piping. use with R410A refrigerant. The old refrigerant and lubricant in the existing piping The following tools are necessary to use R410A refrigerant.
Page 3: Cautions For Service
[1] Cautions for service (1) Perform service after recovering the refrigerant left in unit completely. (2) Do not release refrigerant in the air. (3) After completing service, charge the cycle with specified amount of refrigerant. (4) When performing service, install a filter drier simultaneously. Be sure to use a filter drier for new refrigerant.
Page 4: Parts Names And Functions
PARTS NAMES AND FUNCTIONS 2-1. Indoor Unit Drain pipe Air outlet Filter Liquid pipe Gas pipe Signal receiver i-See sensor (Option) (Option) Model name Model name indication for Vane indication for GRILLE MAIN UNIT Air intake (Intake grille) 2-2. Wired Remote Controller <PAR-41MAA> <PAC-YT53CRAU> Wired remote controller function The functions which can be used are restricted according to each model.
Page 5: Specifications
SPECIFICATIONS 3-1. SPECIFICATIONS Service Ref. PLFY-EP06NEMU1-E.TH PLFY-EP08NEMU1-E.TH PLFY-EP12NEMU1-E.TH PLFY-EP15NEMU1-E.TH Power source 1-Phase 208/230 V, 60 Hz Cooling capacity Btu/h 6,000 8,000 12,000 15,000 (Nominal) Power input 0.02 0.03 Current input 0.19 0.31 Heating capacity Btu/h 6,700 9,000 13,500 17,000 (Nominal) Power input 0.02 Current input...
Page 6 Service Ref. PLFY-EP18NEMU1-E.TH PLFY-EP24NEMU1-E.TH PLFY-EP30NEMU1-E.TH Power source 1-Phase 208/230 V, 60 Hz Cooling capacity Btu/h 18,000 24,000 30,000 (Nominal) Power input 0.04 Current input 0.43 0.45 Heating capacity Btu/h 20,000 27,000 34,000 (Nominal) 10.0 Power input 0.04 Current input 0.38 0.40 External finish Galvanized steel sheet...
Page 7 Service Ref. PLFY-EP36NEMU1-E.TH PLFY-EP48NEMU1-E.TH Power source 1-Phase 208/230 V, 60 Hz Cooling capacity Btu/h 36,000 48,000 (Nominal) 10.6 14.1 Power input 0.07 0.11 Current input 0.73 1.01 Heating capacity Btu/h 40,000 54,000 (Nominal) 11.7 15.8 Power input 0.07 0.11 Current input 0.68 0.96 External finish...
Page 8: Sound Pressure Level
3-2. SOUND PRESSURE LEVEL PLFY-EP•NEMU1-E Sound pressure level in anechoic room: Low-Mid2-Mid1-High Sound pressure level dB (A) PLFY-EP06NEMU1-E.TH 19-23-25-27 PLFY-EP08NEMU1-E.TH 27-29-30-31 PLFY-EP12NEMU1-E.TH PLFY-EP15NEMU1-E.TH 28-29-30-31 PLFY-EP18NEMU1-E.TH 28-30-32-34 PLFY-EP24NEMU1-E.TH PLFY-EP30NEMU1-E.TH 28-31-33-35 PLFY-EP36NEMU1-E.TH 35-37-39-41 PLFY-EP48NEMU1-E.TH 36-39-42-45 Measurement location Note: Measured in anechoic room. 3-3.
Page 9 PLFY-EP18NEMU 1-E.TH PLFY-EP15NEMU1-E.TH PLFY-EP24NEMU 1-E.TH External Static Pressure: 0 Pa [0.00 in.WG] External Static Pressure: 0 Pa [0.00 in.WG] Power Source: 208/230 V 60 Hz Power Source: 208/230 V 60 Hz 70.0 70.0 High 60 Hz High 60 Hz Middle 60 Hz Middle 60 Hz 65.0 65.0...
Page 10: Electrical Parts Specifications
3-4. ELECTRICAL PARTS SPECIFICATIONS Service Ref. PLFY-EP06NEMU1-E.TH PLFY-EP30NEMU1-E.TH PLFY-EP08NEMU1-E.TH PLFY-EP18NEMU1-E.TH Symbol PLFY-EP36NEMU1-E.TH PLFY-EP12NEMU1-E.TH PLFY-EP24NEMU1-E.TH PLFY-EP48NEMU1-E.TH PLFY-EP15NEMU1-E.TH Parts name Room temperature TH21 Resistance 30°F/15.8 kΩ, 50°F/9.6 kΩ, 70°F/6.0 kΩ, 80°F/4.8 kΩ, 90°F/3.9 kΩ, 100°F/3.2 kΩ detection thermistor Pipe temperature TH22 Resistance 30°F/15.8 kΩ, 50°F/9.6 kΩ, 70°F/6.0 kΩ, 80°F/4.8 kΩ, 90°F/3.9 kΩ, 100°F/3.2 kΩ dection thermistor/liquid Pipe temperature TH23 Resistance 30°F/15.8 kΩ, 50°F/9.6 kΩ, 70°F/6.0 kΩ, 80°F/4.8 kΩ, 90°F/3.9 kΩ, 100°F/3.2 kΩ...
Page 11: 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 the remote controller 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 12 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 function casement can also be made. Note: When installing the optional multi function casement, add 5-5/16”...
Page 13 4-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS PLFY-EP06/08/12/15NEMU1-E.TH Taking air into the unit Multifunction casement + Standard filter 50(20) 50(20) 2 - inlet -50(-20) -50(-20) -100(-40) 1 - inlet -100(-40) -150(-60) -200(-80) -150(-60) [CMM] [CMM] [CFM] [CFM] Airflow rate Airflow rate Multifunction casement + High efficiency filter How to read curves...
Page 14: Outlines And Dimensions
OUTLINES AND DIMENSIONS Unit: in (mm) TCH129A...
Page 15: Wiring Diagram
WIRING DIAGRAM TCH129A...
Page 16: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM Strainer (#100mesh) Pipe temperature detection thermistor/gas TH23 Heat exchanger Pipe temperature detection thermistor/liquid TH22 Distributor Capillary tube Strainer (#100mesh) Refrigerant flow in cooling Refrigerant flow in heating Unit: in [mm] Model PLFY-EP06NEMU1-E.TH PLFY-EP24NEMU1-E.TH PLFY-EP08NEMU1-E.TH PLFY-EP30NEMU1-E.TH Item PLFY-EP12NEMU1-E.TH PLFY-EP36NEMU1-E.TH PLFY-EP15NEMU1-E.TH PLFY-EP48NEMU1-E.TH...
Page 17: Microprocessor Control
MICROPROCESSOR CONTROL INDOOR UNIT CONTROL 8-1. COOL OPERATION <How to operate> 1 Press ON/OFF button. 2 Press [F1] button to display COOL. 3 Press [F2] [F3] button to set the set temperature. NOTE: The settable temperature range varies with the model of outdoor units and remote controller.
Page 18 Control Mode Control Details Remarks 3. Drain pump 3-1. Drain pump control • The drain pump will always run when the unit is in COOL or DRYING mode. (Regardless of the thermo ON/OFF) • Whenever the operation is changed over to the other modes (including Stop), the drain pump will stop pumping after approximately 3 minutes.
Page 19: Drying Operation
8-2. DRYING OPERATION <How to operate> 1 Press ON/OFF button. 2 Press [F1] button to display DRYING. 3 Press [F2] [F3] button to set the set temperature. RETURN SELECT MENU HOLD <How to operate> 1 Press POWER ON/OFF button. 2 Press the operation MODE button to display DRYING. 3 Press the TEMP.
Page 20: Fan Operation
8-3. FAN OPERATION <How to operate> 1 Press ON/OFF button. 2 Press [F1] button to display FAN. RETURN SELECT MENU HOLD <How to operate> 1 Press POWER ON/OFF button. 2 Press the operation MODE button to display FAN. Control Mode Control Details Remarks 1.
Page 21: Heat Operation
8-4. HEAT OPERATION <How to operate> 1 Press ON/OFF button. 2 Press [F1] button to display HEAT. 3 Press [F2] [F3] button to set the set temperature. NOTE: The settable temperature range varies with the model of outdoor units and remote controller. RETURN SELECT MENU HOLD...
Page 22 Control Mode Control Details Remarks 2-1. Hot adjust mode "STAND BY" will be displayed during the The fan controller becomes the hot adjust mode for the following conditions. hot adjust mode. 1 When starting HEAT operation 2 When the temperature adjustment function changes from OFF to ON. The step change 3 When HEAT defrosting operation is released of A to B will not be...
Page 23: Auto Operation [Automatic Cool/Heat Change Over Operation]
8-5. AUTO OPERATION [AUTOMATIC COOL/HEAT CHANGE OVER OPERATION] <How to operate> 1 Press ON/OFF button. 2 Press [F1] button to display AUTO. 3 Press [F2] [F3] button to set the set temperature. NOTE: The settable temperature range varies with the model of outdoor units and remote controller.
Page 24: Troubleshooting
TROUBLESHOOTING 9-1. HOW TO CHECK THE PARTS Parts name Checkpoints Room temperature Disconnect the connector then measure the resistance with a multimeter. (At the ambient temperature 50 to 86°F) detection thermistor (TH21) Pipe temperature detection Normal Abnormal Refer to “9-1-1. Thermistor”. thermistor/liquid (TH22) 4.3 to 9.6 Ω...
Page 25: Linear Expansion Valve
9-1-1. Thermistor <Thermistor characteristic graph> < Thermistor for lower temperature > Room temperature detection thermistor (TH21) Thermistor for Pipe temperature detection thermistor/liquid (TH22) lower temperature Pipe temperature detection thermistor/gas (TH23) Thermistor R =15 kΩ ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480( 273+(t-32)/1.8 30⁰F...
Page 26 <Output pulse signal and the valve operation> The output pulse shifts in below order. Output Output Closing a valve: 1 → 2 → 3 → 4 → 1 (Phase) Opening a valve: 4 → 3 → 2 → 1 → 4 ø1 Notes: ø2...
Page 27 9-1-3. 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 28 9-2. FUNCTION OF DIP SWITCH The black square (■) indicates a switch position. Operation by switch Effective Switch Pole Function Remarks timing Thermistor Built-in remote <Room temperature detection> Indoor unit controller position Indoor controller board Filter clogging detection Provided Not provided <Initial setting>...
Page 29 Operation by switch Effective Switch Pole Function Remarks timing SW11 Indoor controller board 1s digit Address setting <Initial setting> address should be done setting when M-NET SW12 remote controller is 10s digit being used. Before address setting power supply This is the switch Indoor controller board to be used when <Initial setting>...
Page 30 The black square (■) indicates a switch position. Effective Switch Pole Operation by switch Remarks timing <Initial setting> Function ─ ─ ─ ─ ─ ─ 3 Pair No. of wireless remote controller Depends on SW22-3, 22-4 4 Pair No. of wireless remote controller •...
Page 31: Test Point Diagram
9-3. TEST POINT DIAGRAM 9-3-1. Indoor controller board Power supply for indoor controller board 3–5: 208/230 VAC CNMF Connect to the FUSE fan motor (MF) 6.3 A, 250 V 1–4: 294/325 VDC 5–4: 15 VDC 6–4: 0–6 VDC 7–4: 0 or 15 VDC (Stop) 7.5 VDC (Operation) (12 VDC pulse) LED1...
Page 32: Disassembly Procedure
DISASSEMBLY PROCEDURE Be careful when removing heavy parts. : Indicates the visible parts in the photos/fi gures. OPERATING PROCEDURE PHOTOS/FIGURES Figure 1 Figure 2 1. Removing the intake grille and the filter Intake grille Intake grille Intake grille Intake grille Intake grille (1) Slide the levers in the direction indicated by the arrows Filter...
Page 33 OPERATING PROCEDURE PHOTOS/FIGURES Photo 6 5. Removing the electrical box Bell mouth fixing screws Bell mouth fixing screws Bell mouth fixing screws Bell mouth fixing screws Bell mouth fixing screws (1) Remove the intake grille and the filter. (See Procedure 1.) (2) Remove the electrical box cover.
Page 34 OPERATING PROCEDURE PHOTOS/FIGURES 7. Removing the turbo fan motor Photo 10 (1) Remove the intake grille and the filter. (See Procedure 1.) • Nuts and washers (2) Remove the electrical box cover. (See Procedure 2.) • Rubber mounts (3) Disconnect the connectors. (Refer to procedure 4.) (4) Remove the electrical box.
Page 35 OPERATING PROCEDURE PHOTOS/FIGURES Photo 13 9. Removing the drain pan Drain pan (1) Remove the intake grille and the filter. (See Procedure 1.) (2) Remove the electrical box cover. (See Procedure 2.) (3) Disconnect the connectors. (Refer to Procedure 4.) (4) Remove the grille.
Page 36 OPERATING PROCEDURE PHOTOS/FIGURES Photo 17 12. Removing the heat exchanger (1) Remove the intake grille and the filter. (See Procedure 1.) ■ PLFY-EP06/08/12/15NEMU1-E.TH (2) Remove the electrical box cover. (See Procedure 2.) Coil support (3) Disconnect the connectors. (Refer to Procedure 4.) fi xing screw (4) Remove the grille.
Page 37: 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 38: Room Temperature
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>...
Page 39 Menu structure Press the button. MENU Main menu Move the cursor to the desired item with the buttons, and press the SELECT/HOLD button. Operation Vane · Louver · Vent. (Lossnay) High power Comfort Manual vane angle 3D i-See sensor Timer menu Timer ON/OFF timer Auto-OFF timer...
Page 40 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 Model name input Serial No. input Dealer information input Initialize maintenance info.
Page 41: Main Menu List
Main menu list Main Setting and display items Setting details menu Operation Vane · Louver · Vent. Use to set the vane angle. (Lossnay) • Select a desired vane setting from 5 different settings. Use to turn ON/OFF the louver. •...
Page 42 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...
Page 43: Controller Interface
<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) Airfl ow button (Changes up/ i-see button* down airfl ow direction) Timer ON button Menu button Timer OFF button SET/SEND button Weekly timer ON/OFF button*...
Page 44: Backlit Lcd
<PAC-YT53CRAU> Note: The phrase "Wired remote controller" in this manual refers only to the TAC-YT53CRAU. If you need any information for the other remote controller, please refer to either the installation manual or initial setting manual which are included in remote controller's box.
Page 45: 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, model name, and se- Error information rial number will appear. Error code The model name and serial number will appear only if the informa- Error unit...
Page 46 • Checking the error information Maintenance menu While no errors are occurring, page 2/2 of the error information can be Error information viewed by selecting "Error information" from the Maintenance menu. Filter information Errors cannot be reset from this screen. Cleaning Main menu: RETURN Cursor...
Page 47: Service Menu
11-3. SERVICE MENU Maintenance password is required 1. Select "Service" from the Main menu, and press the [SELECT/HOLD] button. Main Main menu *At the main display, the menu button and select "Service" to make the Service maintenance setting. 2. When the Service menu is selected, a window will appear asking for the pass- Service menu word.
Page 48: Test Run Operation
11-4. TEST RUN 11-4-1. PAR-41MAA 1. Select "Service" from the Main menu, and press the [SELECT/HOLD] button. Test run Input maintenance info. Settings Check Select "Test run" with the F1 or F2 button, and press the [SELECT/HOLD] button. Others : RETURN SELECT MENU RETURN...
Page 49 11-4-2. PAR-SL101A-E 1. Press the button to stop the air conditioner. • If the weekly timer is enabled ( is on), press the button to disable it ( is off). 2. Press the button for 5 seconds. • comes on and the unit enters the service mode. 3.
Page 50: Function Setting
11-5. FUNCTION SETTING 11-5-1. PAR-41MAA Settings menu 1. Select ˝Service˝ from the Main menu, and press the [SELECT/HOLD] button. Function setting Lossnay Select ˝Setting˝ from the Service menu, and press the [SELECT/HOLD] button. Service menu: MENU Cursor Select ˝Function setting˝, and press the [SELECT/HOLD] button. SELECT MENU RETURN...
Page 51 11-5-2. 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. 11-1) Press the button to set the ˝50˝. Direct the wireless remote controller toward the receiver of the indoor unit and press the button.
Page 52: Error History
11-6. ERROR HISTORY 1. Select ˝Service˝ from the Main menu, and press the [SELECT/HOLD] button. Test run Input maintenance info. Settings Check Others RETURN Select ˝Check˝ with the F1 or F2 button, and press the [SELECT/HOLD] button. SELECT MENU RETURN HOLD 2.
Page 53: Self-Diagnosis
11-7. SELF-DIAGNOSIS 11-7-1. PAR-41MAA 1. Select ˝Service˝ from the Main menu, and press the [SELECT/HOLD] button. Diagnosis Self check Select ˝Check˝ from the Service menu, Remote controller check and press the [SELECT/HOLD] button. Service menu: MENU Select ˝Diagnosis˝ from the Check menu, Cursor and press the [SELECT/HOLD] button.
Page 54 11-7-2. PAR-SL101A-E 1. Press the button 1 to stop the air conditioner. is on), press the button 3 is off). to disable it ( 2. Press the button 2 for 5 seconds. 3. Press the button 5 to select the refrigerant address (M-NET address) B of the indoor 4.
Page 55: 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, and Diagnosis press the [SELECT/HOLD] button. Self check Remote controller check Select "Check" from the Service menu, and press the [SELECT/HOLD] button.
Page 56 HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU TOKYO 100-8310, JAPAN MITSUBISHI ELECTRIC CONSUMER PRODUCTS (THAILAND) CO., LTD. 700/406 MOO 7, TAMBON DON HUA ROH, AMPHUR MUANG, CHONBURI 20000 THAILAND Issued: Jan. 2024. No. TCH129 REVISED EDITION-A Published: Nov. 2023. No. TCH129 Made in Thailand Specifications are subject to change without notice.

Mitsubishi Electric CITY MULTI PLFY-EP06NEMU1-E Technical & Service Manual

Quick Links

Need help?

Questions and answers

Related Manuals for Mitsubishi Electric CITY MULTI PLFY-EP06NEMU1-E

Summary of Contents for Mitsubishi Electric CITY MULTI PLFY-EP06NEMU1-E

This manual is also suitable for:

Table of Contents