SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS June 2009 No. OCH410 REVISED EDITION-B TECHNICAL & SERVICE MANUAL R410A / R22 Indoor unit [model names] PLFY-P08NCMU-E PLFY-P12NCMU-E PLFY-P15NCMU-E [Service Ref.] Revision: PLFY-P08NCMU-E.TH PLFY-P08NCMU-E1.TH PLFY-P08NCMU-ER2.TH PLFY-P12NCMU-E.TH PLFY-P12NCMU-E1.TH PLFY-P12NCMU-ER2.TH PLFY-P15NCMU-E.TH PLFY-P15NCMU-E1.TH PLFY-P15NCMU-ER2.TH • PLFY-P08/12/15NCMUER2.TH are added in REVISED EDITION-B. • Some descriptions have been modified.
1 TECHNICAL CHANGES PLFY-P08NCMU-E1.TH PLFY-P12NCMU-E1.TH PLFY-P15NCMU-E1.TH PLFY-P08NCMU-ER2.TH PLFY-P12NCMU-ER2.TH PLFY-P15NCMU-ER2.TH • The following functions of CONTROLLER BOARD (C.B) have been changed. * Initial setting of auto restart function Not effective → effective (SW1-9 OFF → ON) * External heating control change PLFY-P08NCMU-E.TH PLFY-P12NCMU-E.TH PLFY-P15NCMU-E.TH PLFY-P08NCMU-E1.TH PLFY-P12NCMU-E1.TH PLFY-P15NCMU-E1.TH • PANEL has been changed. SLP-15AAU (White : 0.70Y 8.59/0.
2 FEATURES Models PLFY-P08NCMU-E PLFY-P12NCMU-E PLFY-P15NCMU-E Cooling capacity / Heating capacity 8,000 / 9,000 Btu/h 12,000 / 13,500 Btu/h 15,000 / 17,000 Btu/h Indoor Unit 1. PERFECT PANEL SIZE The brand new 22-7/16 inch PLFY-P08/12/15NCMU-E models are slim, attractive, yet poweful units. PLFY-P08/12/15NCMU-E’s size and shape, which perfectly match 2-by-2 ceilings, and its lighter weight of 34 lbs (PLFY-P08NCMU-E) make installation even easier and more convenient. 2.
3 PART NAMES AND FUNCTIONS Indoor (Main) Unit Filter Removes dust and pollutants from return air. Horizontal Air Outlet Sets horizontal airflow automatically during cooling or dehumidifying. Grille Auto Air Swing Vane Disperses airflow up and down and adjusts the angle of airflow direction. Air Intake Returns air from room. Wired remote controller Once the controllers are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
Wired remote controller Display Section For purposes of this explanation, all parts of the display are shown as lit. During actual operation, only the relevant items will be lit. Day-of-Week “Sensor” indication Shows the current day of the week. Displayed when the remote controller sensor is used. Time/Timer Display Shows the current time, unless the simple or Auto Off timer is set. If the simple or Auto Off timer is set, the time to be switched off is shown.
4 SPECIFICATIONS 4-1. SPECIFICATIONS PLFY-P08NCMU-E.TH PLFY-P08NCMU-E1.TH PLFY-P08NCMU-ER2.TH Item PLFY-P12NCMU-E.TH PLFY-P12NCMU-E1.TH PLFY-P12NCMU-ER2.TH PLFY-P15NCMU-E.TH PLFY-P15NCMU-E1.TH PLFY-P15NCMU-ER2.TH V·Hz Btu/h 8,000 12,000 15,000 Heating capacity Btu/h 9,000 13,500 17,000 Cooling kW 0.05 0.06 0.06 Heating kW 0.05 0.06 0.06 Cooling A 0.23 0.28 0.28 Heating A 0.23 0.28 0.
4-2. NOISE CRITERION CURVES PLFY-P08NCMU-E.TH PLFY-P08NCMU-E1.TH PLFY-P08NCMU-ER2.TH NOTCH SPL(dB) High 38 Medium 32 Low 29 LINE PLFY-P12NCMU-E.TH PLFY-P12NCMU-E1.TH PLFY-P12NCMU-ER2.TH 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE 63 125 NC-20 250 500 1000 2000 4000 OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar) OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.
4-3. ELECTRICAL PARTS SPECIFICATIONS Model Symbol Parts name Thermistor (Room temperature detection) Thermistor (Pipe temperature detection/ Liquid) Thermistor (Pipe temperature detection/ Gas) Fuse (Indoor controller board) PLFY-P08NCMU-E.TH PLFY-P08NCMU-E1.TH PLFY-P08NCMU-ER2.TH PLFY-P12NCMU-E.TH PLFY-P12NCMU-E1.TH PLFY-P12NCMU-ER2.TH PLFY-P15NCMU-E.TH PLFY-P15NCMU-E1.TH PLFY-P15NCMU-ER2.TH TH21 Resistance 30 F/15.8k , 50 F/9.6k , 70 F/6.0k , 80 F/4.8k , 90 F/3.9k , 100 F/3.
5 4-WAY AIR FLOW SYSTEM 5-1. FRESH AIR INTAKE (Location for installation) At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when required. Fresh air intake hole diagram Fresh air intake 3 - W1/8 Burring hole W3-15/16 Burring hole pitch 120" 120" 4-21/32 (Unit : inch) W2-7/8 (Cut out hole) Ceiling surface Refrigerant pipe Electrical Box Drain pipe 5-2.
5-4. FIXING HORIZONTAL VANE Horizontal vane of each air outlet can be fixed according to the environment where it is installed. Setting procedure 1) Turn off a main power supply (Turn off a breaker). 2) Disconnect the vane motor connector of the direction of the arrow with pressing the unlocking button as shown in figure below. Insulate the disconnected connector with the plastic tape.
6 OUTLINES AND DIMENSIONS PLFY-P12NCMU-E.TH PLFY-P12NCMU-E1.TH PLFY-P12NCMU-ER2.TH Detail drawing of fresh air intake Fresh air intake Ceiling hole :3-15/16(:100) 20-7/8(530) 22-7/16(570) 13-3/16(335) 16-17/32(420) Suspension bolt pitch Ceiling surface 3-7/16(87) 2-7/32(56) 13-27/32(352) 13-3/16(335) 19/32~1-15/32(15~37) 22-11/16~24-13/32(576~620) Ceiling hole 7-15/16(202) Drain pipe VP-25 connection (O.D.
7 WIRING DIAGRAM PLFY-P08NCMU-E.TH PLFY-P08NCMU-E1.TH PLFY-P12NCMU-E.TH PLFY-P12NCMU-E1.TH [LEGEND] SYMBOL NAME INDOOR CONTROLLER BOARD I.B CN32 CONNECTOR REMOTE SWITCH CN41 HA TERMINAL-A CN51 CENTRALLY CONTROL CN52 REMOTE INDICATION FUSE FUSE (6.3A/250V) SW1 SWITCH MODE SELECTION CAPACITY CODE SW2 MODE SELECTION SW3 MODEL SELECTION SW4 SW11 ADDRESS SETTING 1ST DIGIT SW12 ADDRESS SETTING 2ND DIGIT SW14 CONNECTION No. X1 AUX.
PLFY-P08NCMU-ER2.TH PLFY-P12NCMU-ER2.TH PLFY-P15NCMU-ER2.TH (RED) (RED) Fig.1 Notes: 1. At servicing for outdoor unit, always follow the wiring diagram of outdoor unit. 2. In case of using MA-Remote controller, please connect to TB15. (Remote controller wire is non-polar.) 3. In case of using M-NET, please connect to TB5. (Transmisson wire is non-polar.) 4. Symbol [S] of TB5 is the shield wire connection. 5. Symbols used in wiring diagram above are, : terminal block, :connecter. 6.
8 REFRIGERANT SYSTEM DIAGRAM PLFY-P08NCMU-E.TH PLFY-P08NCMU-E1.TH PLFY-P08NCMU-ER2.TH PLFY-P12NCMU-E.TH PLFY-P12NCMU-E1.TH PLFY-P12NCMU-ER2.TH Gas pipe thermistor TH23 PLFY-P15NCMU-E.TH PLFY-P15NCMU-E1.TH PLFY-P15NCMU-ER2.
9 MICROPROCESSOR CONTROL INDOOR UNIT CONTROL 9-1. COOL OPERATION TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE FUNCTION FILTER ûFûC °F °C WEEKLY SIMPLE AUTO OFF ONLY1Hr. TEMP. MENU BACK PAR-21MAA MONITOR/SET ON/OFF ON/OFF FILTER DAY CLOCK CHECK TEST OPERATION 1 Press POWER ON/OFF button. 2 Press the operation MODE button to display COOL. 3 Press the TEMP. button to set the desired temperature.
From the preceding page Control modes 3. Drain pump Remarks Control details 3-1. Drain pump control • Always drain pump ON during the COOL and DRY mode operation. (Regardless of the thermo ON/ OFF) • When the operation mode has changed from the COOL or DRY to the others (including Stop), OFF the control after the drain pump ON for 3 minutes. Drain sensor function • Energize drain sensor at a fixed voltage for a fixed duration.
9-2. DRY OPERATION 1 Press POWER ON/OFF button. 2 Press the operation MODE button to display DRY. 3 Press the TEMP. button to set the desired temperature. NOTE: The set temperature changes 1°F(2°F) when the or button is pressed once. Dry 67 to 87°F Variable range of the set temprature depends on the remote controller which is applied. TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE FUNCTION FILTER ûFûC °F °C WEEKLY SIMPLE AUTO OFF ONLY1Hr. TEMP.
9-3. FAN OPERATION 1 Press POWER ON/OFF button. 2 Press the operation MODE button to display FAN. TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE FUNCTION FILTER ûFûC °F °C WEEKLY SIMPLE AUTO OFF ONLY1Hr. TEMP. MENU BACK PAR-21MAA MONITOR/SET ON/OFF ON/OFF FILTER DAY CLOCK CHECK TEST OPERATION CLEAR Control modes 1. Fan 2. Drain pump Control details Set by remote controller. Type Fan speed notch 3 speeds type [Low], [Med], [High] 2-1.
9-4. HEAT OPERATION 1 Press POWER ON/OFF button. 2 Press the operation MODE button to display HEAT. 3 Press the TEMP. button to set the desired temperature. NOTE: The set temperature changes 1°F(2°F) when the or button is pressed once. Heating 63 to 83°F Variable range of the set temprature depends on the remote controller which is applied. [DEFROST] The [DEFROST] symbol is only displayed during the defrost operation.
From the preceding page Control details Control modes 2. Fan 2-3. Thermo OFF mode When the thermoregulating function changes to OFF, the indoor fan operates in [Extra low]. 2-4. Heat defrosting mode The indoor fan stops. No drain pump operation However, when the control changes from COOL or DRY operation, the drain pump operates for 3 minutes. 4.
9-5. AUTO OPERATION [AUTOMATIC COOL/HEAT CHANGE OVER OPERATION] TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE ûFûC °F °C TEMP. MENU BACK PAR-21MAA MONITOR/SET FUNCTION FILTER WEEKLY SIMPLE AUTO OFF ONLY1Hr. ON/OFF ON/OFF FILTER DAY CLOCK CHECK TEST OPERATION CLEAR 1 Press POWER ON/OFF button. 2 Press the operation MODE button to display AUTO. 3 Press the TEMP. button to set the desired temperature.
10 TROUBLESHOOTING 10-1. HOW TO CHECK THE PARTS PLFY-P08NCMU-E.TH PLFY-P12NCMU-E.TH PLFY-P08NCMU-E1.TH PLFY-P12NCMU-E1.TH PLFY-P08NCMU-ER2.TH PLFY-P12NCMU-ER2.TH Parts name PLFY-P15NCMU-E.TH PLFY-P15NCMU-E1.TH PLFY-P15NCMU-ER2.TH Check points Thermistor (TH21) (Room temperature detection) Thermistor (TH22) (Pipe temperature detection/ Liquid) Thermistor (TH23) (Pipe temperature detection/ Gas) Disconnect the connector then measure the resistance with a tester.
< Thermistor for lower temperature > 50 Room temperature thermistor(TH21) Liquid pipe temperature thermistor(TH22) Gas pipe temperature thermistor(TH23) Thermistor R0=15k' ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480( 30_F 50_F 70_F 80_F 90_F 100_F 1 273+(t-32)/1.8 40 Resistance (k ) Thermistor for lower temperature 1 )} 273 15.8k' 9.6k' 6.0k' 4.8k' 3.9k' 3.
10-2. FUNCTION OF DIP SWITCH is the switch position.
Pole Effective timing Operation by switch SW11 Indoor controller board SW14 F01 23 45 6 How to set branch numbers SW14 (Series R2 only) Match the indoor unit’s refrigerant pipe with the BC controller’s end connection number. Remain other than series R2 at "0".
10-3-2. Indoor controller board PLFY-P08NCMU-E.TH PLFY-P12NCMU-E.TH PLFY-P08NCMU-E1.TH PLFY-P12NCMU-E1.TH CN2M Connect to the terminal block (TB5) (M-NET transmission connecting wire) 24-30V DC (non-polar) PLFY-P15NCMU-E.TH PLFY-P15NCMU-E1.TH CN3A Connect to the terminal block (TB15) (MA-Remote controller connecting wire) Between 1 to 3 8.7-13V DC (Pin1 (+)) CN2D Connect to the indoor power board (CN2S) 12.5-13.
PLFY-P08NCMU-ER2.TH PLFY-P12NCMU-ER2.TH CN2M Connect to the terminal block (TB5) (M-NET transmission connecting wire) 24-30V DC (non-polar) PLFY-P15NCMU-ER2.TH CN3A Connect to the terminal block (TB15) (MA-Remote controller connecting wire) Between 1 to 3 8.7-13V DC (Pin1 (+)) LED2 Power supply for MA-Remote controller CN2D Connect to the indoor power board (CN2S) 12.5-13.
11 DISASSEMBLY PROCEDURE PLFY-P08/12/15NCMU-E.TH PLFY-P08/12/15NCMU-E1.TH PLFY-P08/12/15NCMU-ER2.TH OPERATING PROCEDURE Be careful when removing heavy parts. PHOTOS&ILLUSTRATIONS 1. Removing the air intake grille (1) Slide the knob of air intake grille to the direction of the arrow 1 to open the air intake grille. (2) Remove the string hook from the panel to prevent the grille from dropping. (3) Slide the hinge of the intake grille to the direction of the arrow 2 and remove the air intake grille.
OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 5. Removing the room temperature detection (TH21) Photo 4 (1) Remove the panel. (Refer to 3) (2) Pull out the room temperature detection from the drain pan. (3) Remove the 2 screws fixed to the control box cover, and remove the control box cover. Screw (4) Remove the connector (CN20) from the indoor controller board, and disconnect the room temperature detection. Room Connectors Control box Drain plug Screw temperature detection (TH21) 6.
OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 9. Removing the drain pump (DP) and drain sensor (DS) (1) Remove the panel. (Refer to 3 ) (2) Remove the drain pan. (Refer to 6) (3) Remove the 2 screws fixed to the control box cover, and remove the control box cover. (4) Remove the connectors of the (CNP) and the (CN31) from the indoor controller board. (5) Remove the 1 screw fixed to the cover, and remove the cover.(See photo 7) (6) Disconnect the lead wires to the direction of the drain pump.
HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN cCopyright 2006 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Jun. 2009 No. OCH410 REVISED EDITION-B PDF 6 Distributed in Jul. 2007 No. OCH410 REVISED EDITION-A PDF 8 Distributed in Nov. 2006 No. OCH410 PDF 8 Made in Japan New publication, effective Jun.
