Mitsubishi Electric Mr.SLIM PLA Series Technical & Service Manual
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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Series PLA
Indoor unit
[Model names]
PLA-P3AA
INDOOR UNIT
CHECK TEST RUN
MODEL SELECT
˚C
AMPM
AMPM
NOT AVAILABLE
ON/OFF
TEMP
WIRELESS REMOTE
CONTROLLER
Ceiling Cassettes
[Service Ref.]
PLA-P3AA
CENTRALLY CONTROLLED
1Hr.
ON OFF
˚C
CLOCK
CHECK
FILTER
CHECK MODE
˚C
TEST RUN
STAND BY
ERROR CODE
NOT AVAILABLE
FUNCTION
DEFROST
TEMP.
ON/OFF
WIRED REMOTE
CONTROLLER
R407C
• Refer to the OCT03 REVISED
EDITION-E as for control relation.
• This manual does not cover
outdoor units. When serving
them, please refer to the service
manual No.OC285, OC261
REVISED EDITION-B and this
manual in a set.
CONTENTS
1.
2. SAFETY PRECAUTION ·······························2
3. PART NAMES AND FUNCTIONS ···············4
4. SPECIFICATIONS ········································7
5. DATA ····························································9
6. OUTLINES AND DIMENSIONS ·················17
7. WIRING DIAGRAM ·······································18
8. REFRIGERANT SYSTEM DIAGRAM··············19
9. TROUBLESHOOTING ·······························20
10. DISASSEMBLY PROCEDURE ··················22
11. PARTS LIST ···············································25
12. OPTIONAL PARTS ····································28
2003
No.OC287
··2
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Table of Contents
Related Manuals for Mitsubishi Electric Mr.SLIM PLA Series
Summary of Contents for Mitsubishi Electric Mr.SLIM PLA Series
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Page 1: Table Of Contents
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS 2003 SPLIT-TYPE, AIR CONDITIONERS No.OC287 TECHNICAL & SERVICE MANUAL Series PLA Ceiling Cassettes R407C Indoor unit • Refer to the OCT03 REVISED [Model names] [Service Ref.] EDITION-E as for control relation. • This manual does not cover PLA-P3AA outdoor units. -
Page 2: Combination Of Indoor And Outdoor Units
COMBINATION OF INDOOR AND OUTDOOR UNITS Outdoor unit(OC285) Outdoor unit(OC261 REVISED EDITION-B) Heat pump type Cooling only type Heat pump type Cooling only type Indoor unit PUH-P3 PUH-P3 PU-P3 PU-P3 VGAA.UK YGAA.UK VGAA.UK YGAA.UK VGAA VGAA VGAA YGAA VGAA YGAA PLA-P3AA SAFETY PRECAUTION Cautions for devices that use R407C refrigerant. - Page 3 [1] Service tools Use the below service tools as exclusive tools for R407C refrigerant. No. Tool name Specifications 1 Gauge manifold ·Only for R407C. ·Use the existing fitting SPECIFICATIONS. (UNF7/16) ·Use high-tension side pressure of 3.4 MPa or over. 2 Charge hose ·Only for R407C.
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Page 4: Part Names And Functions
PART NAMES AND FUNCTIONS Indoor (Main) Unit PLA-P3AA Filter Removes dust and pollutants from intake air Horizontal Air Outlet Sets airflow of horizontal automatically during cooling or dehumidifying. Grille Auto Air Swing Vane Disperses airflow up and down and adjusts the angle of airflow direction. - Page 5 Display In this display example on the bot- CENTRALLY CLOCK display tom left, a condition where all dis- CONTROLLED display play lamps light is shown for expla- The current time , start time and stop time can be displayed in ten second nation purposes although this differs This indicates when the unit is con- intervals by pressing the time switch...
- Page 6 Wireless remote controller PLA-P3AA When cover is open. display CHECK TEST RUN CHECK&TEST RUN display indicates that the unit is being checked or test-run. display display MODEL SELECT Blinks when model is selected. Lights up while transmission to the indoor unit is mode using switches.
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Page 7: Specifications
SPECIFICATIONS 1. Heat pump type Service Ref. PLA-P3AA Item Function Cooling Heating Btu/h 26,600 31,700 Capacity 7,800 9,300 Total input 3.44 3.50 Service Ref. PLA-P3AA Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.17 0.17 Running current 0.81 0.81 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97... - Page 8 2. Cooling only type Service Ref. PLA-P3AA Item Function Cooling Btu/h 26,600 Capacity 7,800 Total input 3.44 Service Ref. PLA-P3AA Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.17 Running current 0.81 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger Plate fin coil Fan (drive) o No.
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Page 9: Data
DATA 1. PERFORMANCE DATA COOLING CAPACITY(1) PLA-P3AA / PU(H)-P3VGAA PU(H)-P3VGAA.UK PU(H)-P3VGAA PU(H)-P3YGAA.UK PU(H)-P3YGAA (240V) Indoor Indoor Outdoor intake air D.B. (:) intake air intake air D.B. (:) W.B. (:) P.C. P.C. P.C. 4,942 0.64 4,792 0.64 4,643 0.64 7,722 2.75 7,488 2.91 7,254... - Page 10 COOLING CAPACITY (2) PLA-P3AA / PU(H)-P3VGAA PU(H)-P3VGAA.UK PU(H)-P3VGAA PU(H)-P3YGAA.UK PU(H)-P3YGAA (240V) Indoor Indoor Outdoor intake air D.B. (:) intake air intake air D.B. (:) W.B. (:) P.C. P.C. P.C. 6,942 4,443 0.64 3.30 6,630 4,243 0.64 3.54 6,318 4,044 0.64 3.84 7,488 3,894...
- Page 11 HEATING CAPACITY PUH-P3VGAA PUH-P3VGAA.UK PUH-P3VGAA PUH-P3YGAA.UK PUH-P3YGAA (240V) Indoor Outdoor intake air WB (:) Service Ref. intake air DB (:) P.C. P.C. P.C. P.C. P.C. P.C. 5,906 2.07 6,417 2.28 7,161 2.63 9,393 3.15 10,602 3.50 11,811 3.78 5,673 2.24 6,138 2.45 6,789...
- Page 12 3. ELECTRICAL DATA 3.1. Heat pump type Indoor unit ······220V 50Hz Single phase Outdoor unit ······220V 50Hz Single phase / 380V 50Hz 3 phase Indoor unit PLA-P3AA Service PUH-P3VGAA Ref. Outdoor unit PUH-P3VGAA.UK PUH-P3YGAA.UK PUH-P3VGAA PUH-P3YGAA Mode Cool Heat Cool Heat Capacity (W) 7,600...
- Page 13 3.2. Cooling only type Indoor unit ······220V 50Hz Single phase Outdoor unit ······220V 50Hz Single phase / 380V 50Hz 3 phase Indoor unit PLA-P3AA Service PU-P3VGAA Ref. Outdoor unit PU-P3VGAA.UK PU-P3YGAA.UK PU-P3VGAA PU-P3YGAA Mode Cool Cool Capacity (W) 7,600 7,600 Total Input (kW) (In+Out) 3.40 3.40...
- Page 14 4. STANDARD OPERATION DATA 4.1. Heat pump type Service Ref. PLA-P3AA Mode Cooling Heating Capacity 7,800 9,300 Input 3.44 3.50 Indoor unit Service Ref. PLA-P3AA Phase,Hz 1,50 Volts Amperes 0.81 PUH-P3VGAA Outdoor unit Service Ref. PUH-P3VGAA.UK PUH-P3YGAA.UK PUH-P3VGAA PUH-P3YGAA Phase, Hz 1, 50/3, 50 Volts 240/415...
- Page 15 4.2 Cooling only type Service Ref. PLA-P3AA Mode Cooling 7,800 Capacity Input 3.44 Indoor unit Service Ref. PLA-P3AA Phase,Hz 1,50 Volts Amperes 0.81 PU-P3VGAA Outdoor unit Service Ref. PU-P3VGAA.UK PU-P3YGAA.UK PU-P3VGAA PU-P3YGAA Phase, Hz 1, 50/3, 50 Volts 240/415 15.01 Amperes 14.81/5.29 2.30...
- Page 16 6. NOISE CRITERION CURVES NOTCH SPL(dB) LINE PLA-P3AA NC-70 NC-60 NC-50 NC-40 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR NC-20 CONTINUOUS NOISE 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz UNIT Ambient temperature 27: CEILING Test conditions are based on JIS Z8731 1.5m MICROPHONE...
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Page 17: Outlines And Dimensions
OUTLINES AND DIMENSIONS PLA-P3AA Unit: mm Ceiling hole 20 - 45 860 - 910 20 - 45 Branch duct hole Fresh air intake (Cut out hole) Suspension bolt pitch 90 100 100 90 Branch duct hole Branch duct hole Terminal block 14 - {2.8 {175 Burring hole... -
Page 18: Wiring Diagram
WIRING DIAGRAM PLA-P3AA SYMBOL NAME SYMBOL NAME SYMBOL NAME INDOOR POWER BOARD VANE MOTOR WIRELESS REMOTE CONTROLLER BOARD FUSE(4A) DRAIN-UP MACHINE RECEIVING UNIT VARISTOR DRAIN SENSOR BUZZER INDOOR CONTROLLER BOARD DEW PREVENTION HEATER LED1 LED(RUN INDICATOR) CN2L CONNECTOR(LOSSNAY) TERMINAL BLOCK(INDOOR/OUTDOOR CONNECTING LINE) LED2 LED(HOT ADJUST) CN32... -
Page 19: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM PLA-P3AA / PUH-P3VGAA.UK Unit : mm(inch) Refrigerant flow in cooling PUH-P3YGAA.UK <4-way valve solenoid coil> Refrigerant flow in heating Heating ON Cooling OFF Outdoor unit High pressure Refrigerant pipe 4-way valve Ball valve protect switch Indoor unit 15.88 5/8") Thermistor... -
Page 20: Troubleshooting
TROUBLESHOOTING HOW TO CHECK THE PARTS PLA-P3AA Parts name Check points Room temperature Disconnect the connector then measure the resistance using a tester. thermistor (TH1) (Surrounding temperature 10:~30:) Pipe temperature Normal Abnormal thermistor (TH2) (Refer to the thermistor) 4.3k"~9.6k" Open or short Condenser/Evaporator temperature thermistor (TH5) - Page 21 <Thermistor Characteristic graph> Room temperature thermistor(TH1) Thermistor for < Thermistor for lower temperature > Pipe temperature thermistor(TH2) lower temperature Condenser/evaporator temperature thermistor(TH5) Thermistor R =15k' ± 3% Fixed number of B=3480k' ± 2% Rt=15exp { 3480( 273+t 15k' 9.6k' 6.3k' 5.2k' 4.3k' 3.0k'...
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Page 22: Disassembly Procedure
DISASSEMBLY PROCEDURE PLA-P3AA Be careful on removing heavy parts. OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 1. Removing the air intake grille Figure 1 (1) Slide the knob of air intake grille toward the arrow 1 to open the air intake grille. Air intake grille (2) Remove drop prevention hook from the panel. - Page 23 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 5. Remove the fan motor Photo 4 (1) Remove the fan guard.(See photo 1) Fan motor (2) Remove the bell mouth.(See photo 2) (3) Remove the electrical box.(See photo 3) (4) Remove the turbo fan nut. (5) Pull out the turbo fan.
- Page 24 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 9. Removing the drain pump and drain sensor Photo 8 (1) Remove the panel. (See photo 6) (2) Remove the fan guard. (See photo 1) (3) Remove the bell mouth. (See photo 2) (4) Remove the electrical box. (See photo 3) (5) Remove the drain pan.
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Page 25: Parts List
PARTS LIST PANEL PARTS GEAR PLA-P3AA GEAR (VANE) VANE BUSH STEPPING MOTOR 3, 4 RECEIVER CHECK TEST RUN MODEL SELECT ˚C AMPM AMPM NOT AVAILABLE CENTRALLY CONTROLLED 1Hr. ON OFF ˚C ON/OFF TEMP CHECK CLOCK FILTER CHECK MODE ˚C TEST RUN STAND BY ERROR CODE DEFROST... - Page 26 FUNCTIONAL PARTS RUBBER MOUNT PLA-P3AA MOTOR CAP SPL WASHER CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR Price Q'ty / set Wiring Recom- Remarks Specification Parts No. Parts Name Diagram mended (Drawing No.) Symbol PLA-P3AA Q'ty Unit Amount — BASE (RG00G462G11) —...
- Page 27 FUNCTIONAL PARTS PLA-P3AA DRAIN PLUG DRAIN PLUG CAPACITOR TERMINAL BLOCK TERMINAL BLOCK FUSE ROOM TEMPERATURE THERMISTOR Price Q'ty / set Wiring Remarks Recom- Parts No. Parts Name Specification Diagram mended (Drawing No.) Unit Amount Symbol Q'ty PLA-P3AA R01 E02 529 DRAIN PAN R01 A41 523 DRAIN SOCKET...
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Page 28: Optional Parts
OPTIONAL PARTS 1. TIMER Part No. PAC-SC32PTA (with set back function) Model Name Program timer 1-1. Program timer specifications Part name Program timer Parts No. PAC-SC32PTA Exterior dimensions (inch) 5-4/32 4-23/32 23/32 (130 120 18mm) Installation Wall mount Type of clock Quartz Clock accuracy 50 second / month at 25:... - Page 29 1-3. How to connect program timer (1) Install the program timer next to the remote controller the same way as the remote controller is installed. (2) Connect the program timer and the remote controller with a 5-wire cable as shown in the figure below Connect to indoor unit NOTE:While the program timer is connected to the remote controller, the with 2-wire cable.
- Page 30 2. Multi-Functional Casement Part No. PAC-SG03TM-E Applied Service Ref. PLA-P3AA 3. High-Efficiency Filter Element (2. Multi-Functional Casement is needed.) Part No. PAC-SG01KF Applied Service Ref. PLA-P3AA 4. Grill + Wireless Remote Controller Part No. PLP-6AALM Applied Service Ref. PLA-P3AA 5. Grill + Wired Remote Controller Part No.
- Page 32 HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3 MARUNOUCHI CHIYODA-KU , TOKYO 100-8310 , JAPAN cCopyright 2003 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. New publication, effective Mar. 2003 Distributed in Mar. 2003 No.OC287 16 Specifications subject to change without notice Made in Japan...