Mitsubishi Electric Mr.Slim PLA-P3AA Technical & Service Manual

Pla series indoor unit ceiling cassettes
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SPLIT-TYPE AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Series PLA
Indoor unit
[Model names]
PLA-P3AA
PLA-P4AA
PLA-P5AA
PLA-P6AA
Model name
indication
CHECK TEST RUN
MODEL SELECT
˚C
AMPM
AMPM
NOT AVAILABLE
ON/OFF
TEMP
ON/OFF
PLA-P•AA.UK PLA-P•AA
.UK
1
WIRELESS REMOTE
CONTROLLER
Ceiling Cassettes
[Service Ref.]
PLA-P3AA.UK
PLA-P3AA
PLA-P4AA.UK
PLA-P4AA
PLA-P5AA.UK
PLA-P5AA
PLA-P6AA.UK
PLA-P6AA
FILTER
CENTRALLY CONTROLLED
CHECK MODE
ON OFF
CLOCK
CHECK
TEST RUN
˚C
STAND BY
ERROR CODE
DEFROST
TEMP.
PLA-P•AA
PLA-P•AA.UK
WIRED REMOTE
CONTROLLER
R407C
.UK
1
.UK
1
.UK
1
.UK
1
CONTENTS
1. TECHNICAL CHANGES ······························2
2.
3. SAFETY PRECAUTION ·······························3
4. PART NAMES AND FUNCTIONS ···············5
5. SPECIFICATIONS ······································11
6. DATA ··························································23
7. OUTLINES AND DIMENSIONS ·················52
8. WIRING DIAGRAM ····································53
9. REFRIGERANT SYSTEM DIAGRAM··············54
10. TROUBLESHOOTING ·······························58
11. DISASSEMBLY PROCEDURE ··················60
1Hr.
˚C
12. PARTS LIST ···············································63
FILTER
CHECK MODE
TEST RUN
NOT AVAILABLE
FUNCTION
ON/OFF
13. OPTIONAL PARTS ····································68
.UK
1
No.OC241
REVISED EDITION-B
Revision:
• "12. PARTS LIST" has been
modified.
• Program timer <PAC-YT32PTA>
has been added in
"13. OPTIONAL PARTS".
Note:
• Refer to the OCT03 REVISED
EDITION-E as for control
relation. This manual does
not cover outdoor units. When
servicing them, please refer to
the service manual No.OC180
REVISED EDITION-A OC261
and this manual in a set.
• Please void OC241 REVISED
EDITION-A.
··3

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Summary of Contents for Mitsubishi Electric Mr.Slim PLA-P3AA

  • Page 1: Table Of Contents

    SPLIT-TYPE AIR CONDITIONERS No.OC241 REVISED EDITION-B TECHNICAL & SERVICE MANUAL Series PLA Ceiling Cassettes R407C Indoor unit Revision: [Service Ref.] [Model names] • “12. PARTS LIST” has been modified. PLA-P3AA.UK • Program timer <PAC-YT32PTA> PLA-P3AA has been added in PLA-P3AA “13.
  • Page 2: Technical Changes

    Revision: 1. “ 12. PARTS LIST ” has been modified on page 65, 66 and 67. Page Revise point Service Ref. Incorrect Correct PLA-P5AA.UK FUNCTIONAL PARTS S70 E21 480 S70 E24 480 PLA-P5AA No.7 HEAT PLA-P6AA.UK S70 E22 480 S70 E25 480 EXCHANGE PLA-P6AA PLA-P3AA.UK...
  • Page 3: Combination Of Indoor And Outdoor Units

    COMBINATION OF INDOOR AND OUTDOOR UNITS Outdoor unit Heat pump type Cooling only type PUH-P PU-P Indoor unit PLA-P3AA.UK — — — — — — Heat pump without electric heater PLA-P4AA.UK — — — — — — — — PLA-P5AA.UK —...
  • Page 4 [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 35kgf/cm or over. 2 Charge hose ·Only for R407C.
  • Page 5: Part Names And Functions

    PART NAMES AND FUNCTIONS Indoor Unit PLA-P3AA.UK, PLA-P4AA.UK, PLA-P5AA.UK, PLA-P6AA.UK PLA-P3AA .UK, PLA-P4AA .UK, PLA-P5AA .UK, PLA-P6AA 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 6 Display In this display example on the bot- CENTRALLY display tom left, a condition where all dis- CONTROLLED display play lamps light is shown for expla- The current time , start time and stop nation purposes although this differs time can be displayed in ten second This indicates when the unit is con- intervals by pressing the time setting from actual operation.
  • Page 7 PLA-P3AA .UK, PLA-P4AA .UK, PLA-P5AA .UK, PLA-P6AA Operation buttons TEMP. ADJUSTMENT button TIME SETTING button AIR SPEED button This sets the room temperature. The This sets the current time, start time This sets the ventilation fan speed. temperature setting can be performed and stop time.
  • Page 8 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 nation purposes although this differs time can be displayed in ten second This indicates when the unit is con- intervals by pressing the time switch...
  • Page 9: Wireless Remote Controller

    Wireless remote controller PLA-P3AA.UK, PLA-P4AA.UK, PLA-P5AA.UK, PLA-P6AA.UK When cover is open. ADDRESS display display display Displays the refrigerant address. SET TEMP. display indicates desired tempera- Lights up while transmission to the indoor unit ture set. UNIT NO. display is mode using switches. Displays the number of unit..
  • Page 10 PLA-P3AA .UK, PLA-P4AA .UK, PLA-P5AA .UK, PLA-P6AA display CHECK TEST RUN CHECK&TEST RUN display indicates that the unit is being checked or test-run. display MODEL SELECT Blinks when model is selected. display Lights up while transmission to the indoor unit is mode using switches. display SET TEMP.
  • Page 11: Specifications

    SPECIFICATIONS 1.Heat pump type Service Ref. PLA-P3AA.UK Item Function Cooling Heating Btu/h 26,600 31,700 Capacity 7,800 9,300 Total input 3.51 3.65 Service Ref. PLA-P3AA.UK 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 Heat exchanger...
  • Page 12 Service Ref. PLA-P4AA.UK Item Function Cooling Heating Btu/h 33,100 36,200 Capacity 9,700 10,600 Total input 3.62 3.80 Service Ref. PLA-P4AA.UK Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.26 0.26 Running current 1.25 1.25 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger Plate fin coil...
  • Page 13 Service Ref. PLA-P5AA.UK Item Function Cooling Heating Btu/h 43,700 54,600 Capacity 12,800 16,000 Total input 5.55 5.93 Service Ref. PLA-P5AA.UK Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.30 0.30 Running current 1.43 1.43 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger Plate fin coil...
  • Page 14 Service Ref. PLA-P6AA.UK Item Function Cooling Heating Btu/h 48,000 57,300 Capacity 14,300 16,800 Total input 6.70 6.77 Service Ref. PLA-P6AA.UK Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V (4wires) Input 0.34 0.34 Running current 1.64 1.64 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger Plate fin coil...
  • Page 15 Service Ref. PLA-P3AA.UK / 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.UK / 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 Heat exchanger...
  • Page 16 Service Ref. PLA-P4AA.UK / PLA-P4AA Item Function Cooling Heating Btu/h 33,100 36,200 Capacity 9,700 10,600 Total input 3.69 3.93 Service Ref. PLA-P4AA.UK / PLA-P4AA Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.26 0.26 Running current 1.25 1.25 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger...
  • Page 17 Service Ref. PLA-P5AA.UK / PLA-P5AA Item Function Cooling Heating Btu/h 43,700 50,800 Capacity 12,800 14,900 Total input 5.00 5.34 Service Ref. PLA-P5AA.UK / PLA-P5AA Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.30 0.30 Running current 1.43 1.43 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger...
  • Page 18 Service Ref. PLA-P6AA.UK / PLA-P6AA Item Function Cooling Heating Btu/h 48,000 58,300 Capacity 14,300 17,100 Total input 5.94 6.36 Service Ref. PLA-P6AA.UK / PLA-P6AA Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.34 0.34 Running current 1.64 1.64 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger...
  • Page 19 2.Cooling only type Service Ref. PLA-P3AA.UK PLA-P4AA.UK Item Function Cooling Btu/h 26,600 33,100 Capacity 7,800 9,700 Total input 3.51 3.62 Service Ref. PLA-P3AA.UK PLA-P4AA.UK Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.17 0.26 Running current 0.81 1.25 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger...
  • Page 20 Service Ref. PLA-P5AA.UK PLA-P6AA.UK Item Function Cooling Btu/h 43,700 48,000 Capacity 12,800 14,300 Total input 5.55 6.70 Service Ref. PLA-P5AA.UK PLA-P6AA.UK Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.30 0.34 Running current 1.43 1.64 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger Plate fin coil...
  • Page 21 Service Ref. PLA-P3AA.UK PLA-P4AA.UK Item PLA-P3AA PLA-P4AA Function Cooling Btu/h 26,600 33,100 Capacity 7,800 9,700 Total input 3.44 3.69 PLA-P3AA.UK PLA-P4AA.UK Service Ref. PLA-P3AA PLA-P4AA Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.17 0.26 Running current 0.81 1.25 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97...
  • Page 22 PLA-P5AA.UK PLA-P6AA.UK Service Ref. Item PLA-P5AA PLA-P6AA Function Cooling Btu/h 43,700 48,000 Capacity 12,800 14,300 Total input 5.00 5.94 PLA-P5AA.UK PLA-P6AA.UK Service Ref. PLA-P5AA PLA-P6AA Power supply (phase, cycle,voltage) Single phase, 50Hz, 220-230-240V Input 0.30 0.34 Running current 1.43 1.64 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97...
  • Page 23: Data

    DATA 1. PERFORMANCE DATA 1.1 COOLING CAPACITY (1) PLA-P3AA.UK / PU(H)-P3VGA, PU(H)-P3YGA (240V) Outdoor intake air DB (:) Indoor Indoor intake air intake air P.C. P.C. P.C. DB (:) WB (:) 7,722 4,942 0.64 2.81 7,488 4,792 0.64 2.97 7,254 4,643 0.64 3.14...
  • Page 24 COOLING CAPACITY (2) PLA-P3AA.UK / PU(H)-P3VGA, PU(H)-P3YGA (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) P.C. P.C. P.C. 6,942 4,443 0.64 3.37 6,630 4,243 0.64 3.62 6,318 4,044 0.64 3.91 7,488 3,894 0.52 3.46 7,254...
  • Page 25 COOLING CAPACITY (3) PLA-P4AA.UK / PU(H)-P4YGA (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) P.C. P.C. P.C. 9,603 6,530 0.68 2.90 9,312 6,332 0.68 3.06 9,021 6,134 0.68 3.24 10,282 5,758 0.56 2.95 9,991 5,595...
  • Page 26 COOLING CAPACITY (4) PLA-P4AA.UK / PU(H)-P4YGA (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air P.C. P.C. P.C. DB (:) WB (:) 8,633 5,870 0.68 3.48 8,245 5,607 0.68 3.73 7,857 5,343 0.68 4.04 9,312 5,215 0.56 3.57 9,021 5,052...
  • Page 27 COOLING CAPACITY (5) PLA-P5AA.UK / PU(H)-P5YGA (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) P.C. P.C. P.C. 12,672 7,857 0.62 4.44 12,288 7,619 0.62 4.69 11,904 7,380 0.62 4.97 13,568 6,784 0.50 4.52 13,184 6,592 0.50...
  • Page 28 COOLING CAPACITY (6) PLA-P5AA.UK / PU(H)-P5YGA (240V) Outdoor intake air DB (:) Indoor Indoor intake air intake air P.C. P.C. P.C. DB (:) WB (:) 11,392 7,063 0.62 5.33 10,880 6,746 0.62 5.72 10,368 6,428 0.62 6.19 12,288 6,144 0.50 5.47 11,904 5,952 0.50...
  • Page 29 COOLING CAPACITY (7) PLA-P6AA.UK / PU(H)-P6YGA (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air P.C. P.C. P.C. DB (:) WB (:) 14,157 8,353 0.59 5.36 13,728 8,100 0.59 5.66 13,299 7,846 0.59 6.00 15,158 7,124 0.47 5.46 14,729 6,923 0.47...
  • Page 30 COOLING CAPACITY (8) PLA-P6AA.UK / PU(H)-P6YGA (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air P.C. P.C. P.C. DB (:) WB (:) 12,727 7,509 0.59 6.43 12,155 7,171 0.59 6.90 11,583 6,834 0.59 7.47 13,728 6,452 0.47 6.60 13,299 6,251 0.47...
  • Page 31 COOLING CAPACITY (9) PLA-P3AA.UK, PLA-P3AA .UK / PU(H)-P3VGAA.UK, PU(H)-P3YGAA.UK (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) 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 3.08 8,268 4,299 0.52...
  • Page 32 COOLING CAPACITY (10) PLA-P3AA.UK, PLA-P3AA .UK / PU(H)-P3VGAA.UK, PU(H)-P3YGAA.UK (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) 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 0.52...
  • Page 33 COOLING CAPACITY (11) PLA-P4AA.UK, PLA-P4AA .UK / PU(H)-P4VGAA.UK, PU(H)-P4YGAA.UK (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) P.C. P.C. P.C. 9,603 6,530 0.68 2.95 9,312 6,332 0.68 3.12 9,021 6,134 0.68 3.30 10,282 5,758 0.56 3.01...
  • Page 34 COOLING CAPACITY (12) PLA-P4AA.UK, PLA-P4AA .UK / PU(H)-P4VGAA.UK, PU(H)-P4YGAA.UK (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) P.C. P.C. P.C. 5,870 0.68 5,607 0.68 5,343 0.68 8,633 3.54 8,245 3.80 7,857 4.11 9,312 5,215 0.56...
  • Page 35 COOLING CAPACITY (13) PLA-P5AA.UK, PLA-P5AA .UK / PU(H)-P5YGAA.UK (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) P.C. P.C. P.C. 12,672 7,857 0.62 12,288 7,619 0.62 11,904 7,380 0.62 4.00 4.23 4.48 13,568 6,784 0.50 4.08 13,184 6,592...
  • Page 36 COOLING CAPACITY (14) PLA-P5AA.UK, PLA-P5AA .UK / PU(H)-P5YGAA.UK (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) P.C. P.C. P.C. 0.62 0.62 0.62 11,392 7,063 4.80 10,880 6,746 5.15 10,368 6,428 5.58 12,288 6,144 0.50 4.93 11,904 5,952...
  • Page 37 COOLING CAPACITY (15) PLA-P6AA.UK, PLA-P6AA .UK / PU(H)-P6YGAA.UK (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) P.C. P.C. P.C. 14,157 8,353 0.59 4.82 13,728 8,100 0.59 5.10 13,299 7,846 0.59 5.40 15,158 7,124 0.47 4.91 14,729 6,923...
  • Page 38 COOLING CAPACITY (16) PLA-P6AA.UK, PLA-P6AA .UK / PU(H)-P6YGAA.UK (240V) Indoor Indoor Outdoor intake air DB (:) intake air intake air DB (:) WB (:) P.C. P.C. P.C. 0.59 0.59 0.59 12,727 7,509 5.79 12,155 7,171 6.21 11,583 6,834 6.72 0.47 0.47 0.47 13,728 6,452...
  • Page 39 1.2 HEATING CAPACITY PUH-P3VGA / PUH-P3YGA, PUH-P4YGA, PUH-P5YGA, PUH-P6YGA (240V) Outdoor intake air WB (:) Indoor Service Ref. intake air DB (:) P.C. P.C. P.C. P.C. P.C. P.C. 5,906 2.15 6,417 2.37 7,161 2.74 9,393 3.29 10,602 3.65 11,811 3.94 5,673 2.34 6,138...
  • Page 40 Correction factors Cooling capacity correction factors Refrigerant piping length (one way) Service Ref. PLA-P3AA.UK 1.00 0.981 0.968 0.952 0.940 0.925 0.913 0.900 0.886 0.874 PLA-P3AA PLA-P4AA.UK 0.930 0.920 0.970 0.940 0.910 1.00 0.989 0.980 0.960 0.950 PLA-P4AA PLA-P5AA.UK 0.874 1.00 0.981 0.968 0.952...
  • Page 41 3. ELECTRICAL DATA 3.1. Heat pump type Indoor unit ..220V 50Hz Single phase Outdoor unit ..220V 50Hz Single phase / 380V 50Hz 3 phase PLA-P3AA.UK PLA-P4AA.UK Model Indoor unit PUH-P3VGA PUH-P3YGA PUH-P4YGA Outdoor unit Cool Heat Cool Heat Cool Heat Mode...
  • Page 42 Indoor unit ..220V 50Hz Single phase Outdoor unit ..380V 50Hz 3 phase PLA-P5AA.UK PLA-P6AA.UK Indoor unit Model PUH-P5YGA PUH-P6YGA Outdoor unit Cool Heat Cool Heat Mode 15,800 16,400 12,600 14,100 Capacity (W) 5.51 5.89 6.60 6.73 Total Input (kW) (In+Out) 0.28 0.28 0.32...
  • Page 43 Indoor unit ..220V 50Hz Single phase Outdoor unit ..220V 50Hz Single phase / 380V 50Hz 3 phase PLA-P3AA.UK PLA-P4AA.UK Indoor unit PLA-P3AA PLA-P4AA Service Ref. PUH-P GAA.UK • Outdoor unit Cool Heat Cool Heat Cool Heat Cool Heat Mode Capacity (W) 7,600...
  • Page 44 Indoor unit ..220V 50Hz Single phase Outdoor unit ..380V 50Hz 3 phase PLA-P5AA.UK PLA-P6AA.UK Indoor unit PLA-P5AA PLA-P6AA Service Ref. PUH-P GAA.UK • Outdoor unit Mode Cool Heat Cool Heat 12,600 14,700 14,100 16,900 Capacity (W) Total Input (kW) (In+Out) 4.96 5.30 5.85...
  • Page 45 3.2. Cooling only type Indoor unit ..220V 50Hz Single phase Outdoor unit ..220V 50Hz Single phase / 380V 50Hz 3 phase Indoor unit PLA-P4AA.UK PLA-P5AA.UK PLA-P6AA.UK PLA-P3AA.UK Model Outdoor unit PU-P3VGA PU-P3YGA PU-P4YGA PU-P5YGA PU-P6YGA Mode Cool Cool Cool Cool Cool...
  • Page 46 Indoor unit ..220V 50Hz Single phase Outdoor unit ..220V 50Hz Single phase / 380V 50Hz 3 phase PLA-P3AA.UK PLA-P4AA.UK PLA-P5AA.UK PLA-P6AA.UK Indoor unit PLA-P3AA PLA-P4AA PLA-P5AA PLA-P6AA Service Ref. PUH-P GAA.UK • Outdoor unit Cool Cool Cool Cool Cool Cool Mode...
  • Page 47 4. STANDARD OPERATION DATA 4.1. Heat pump type (1) Service Ref. PLA-P4AA.UK PLA-P5AA.UK PLA-P6AA.UK PLA-P3AA.UK Mode Cooling Heating Cooling Heating Cooling Heating Cooling Heating Capacity 7,800 9,300 9,700 10,600 12,800 16,000 14,300 16,800 Input 3.51 3.65 3.62 3.80 5.55 5.93 6.70 6.77 Indoor unit...
  • Page 48 4.1. Heat pump type (2) Service Ref. PLA-P4AA.UK PLA-P5AA.UK PLA-P6AA.UK PLA-P3AA.UK Mode Cooling Heating Cooling Heating Cooling Heating Cooling Heating Capacity 7,800 9,300 9,700 10,600 12,800 14,900 14,300 17,100 Input 3.44 3.50 3.69 3.93 5.00 5.34 5.94 6.36 Indoor unit PLA-P3AA.UK PLA-P4AA.UK PLA-P5AA.UK...
  • Page 49 4.2 Cooling only type (1) Service Ref. PLA-P3AA.UK PLA-P4AA.UK PLA-P5AA.UK PLA-P6AA.UK Mode Cooling Cooling Cooling Cooling Capacity 7,800 9,700 12,800 14,300 Input 3.51 3.62 5.55 6.70 Indoor unit Service Ref. PLA-P3AA.UK PLA-P4AA.UK PLA-P5AA.UK PLA-P6AA.UK Phase,Hz 1,50 1,50 1,50 1,50 Volts Amperes 0.81 1.25...
  • Page 50 4.2 Cooling only type (2) Service Ref. PLA-P3AA.UK PLA-P4AA.UK PLA-P5AA.UK PLA-P6AA.UK Mode Cooling Cooling Cooling Cooling Capacity 7,800 9,700 12,800 14,300 Input 3.44 3.69 5.00 5.94 PLA-P3AA.UK PLA-P4AA.UK PLA-P5AA.UK PLA-P6AA.UK Indoor unit Service Ref. PLA-P3AA PLA-P4AA PLA-P5AA PLA-P6AA Phase,Hz 1,50 1,50 1,50 1,50...
  • Page 51 6. NOISE CRITERION CURVES NOTCH SPL(dB) LINE NOTCH SPL(dB) LINE High High PLA-P3AA.UK PLA-P4AA.UK Medium1 Medium1 PLA-P3AA PLA-P4AA 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 52: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PLA-P3AA.UK, PLA-P4AA.UK, PLA-P5AA.UK, PLA-P6AA.UK Unit: mm PLA-P3AA .UK, PLA-P4AA .UK, PLA-P5AA .UK, PLA-P6AA 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...
  • Page 53: Wiring Diagram

    WIRING DIAGRAM PLA-P3AA.UK, PLA-P4AA.UK, PLA-P5AA.UK, PLA-P6AA.UK PLA-P3AA .UK, PLA-P4AA .UK, PLA-P5AA .UK, PLA-P6AA w The part name of symbol “I.B” is “SPCB”. 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...
  • Page 54: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM Unit : mm(inch) PLA-P3AA.UK / PUH-P3VGA, PUH-P3YGA Refrigerant flow in cooling <4-way valve solenoid coil> Refrigerant flow in heating Heating ON Cooling OFF Outdoor unit High pressure Refrigerant pipe 4-way valve switch Indoor unit 15.88 5/8") Thermistor Ball valve (TH6) (with heat insulator)
  • Page 55 Unit : mm(inch) PLA-P3AA.UK / PU-P3VGA, PUH-P3YGA Refrigerant flow in cooling Outdoor unit High pressure Refrigerant pipe switch Indoor unit 15.88 5/8") Thermistor Ball valve (TH6) (with heat insulator) Strainer Thermistor Flexible tube Service (TH1) Service Thermistor port port (TH3) Thermistor Distributor Flared...
  • Page 56 Unit : mm(inch) PLA-P3AA.UK, PLA-P3AA .UK / PUH-P3VGAA.UK, PUH-P3YGAA.UK Refrigerant flow in cooling <4-way valve solenoid coil> Refrigerant flow in heating Heating ON Cooling OFF Outdoor unit High pressure Refrigerant pipe 4-way valve protect switch Indoor unit 15.88 5/8") Thermistor Ball valve (TH6) (with heat insulator)
  • Page 57 Unit : mm(inch) PLA-P3AA.UK, PLA-P3AA .UK / PU-P3VGAA.UK, PUH-P3YGAA.UK Refrigerant flow in cooling Outdoor unit High pressure Refrigerant pipe protect switch Indoor unit 15.88 5/8") Thermistor Ball valve (TH6) (with heat insulator) Strainer Thermistor Flexible tube Service (TH1) Service Thermistor port port (TH3)
  • Page 58: Troubleshooting

    TROUBLESHOOTING HOW TO CHECK THE PARTS PLA-P3AA.UK, PLA-P4AA.UK, PLA-P5AA.UK, PLA-P6AA.UK PLA-P3AA .UK, PLA-P4AA .UK, PLA-P5AA .UK, PLA-P6AA 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...
  • Page 59 <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'...
  • Page 60: Disassembly Procedure

    DISASSEMBLY PROCEDURE PLA-P3AA.UK, 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 61 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 62 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.
  • Page 63: Parts List

    PARTS LIST PANEL PARTS GEAR PLA-P3AA.UK, PLA-P4AA.UK, PLA-P5AA.UK, PLA-P6AA.UK PLA-P3AA .UK, PLA-P4AA .UK, PLA-P5AA .UK, PLA-P6AA GEAR (VANE) VANE BUSH STEPPING MOTOR RECEVER CHECK TEST RUN MODEL SELECT ˚C AMPM AMPM FILTER NOT AVAILABLE CENTRALLY CONTROLLED 1Hr. ON OFF ON/OFF TEMP CHECK MODE ˚C...
  • Page 64 FUNCTIONAL PARTS PLA-P3AA.UK, PLA-P4AA.UK PLA-P3AA .UK, PLA-P4AA SPL WASHER CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR Q'ty / set Price Wiring Recom- Remarks Specifi- Parts No. Parts Name PLA-P3 PLA-P4 Diagram mended (Drawing Symbol cation Q'ty Unit Amount AA.UK AA AA.UK AA No.) S70 003 687...
  • Page 65 FUNCTIONAL PARTS PLA-P5AA.UK, PLA-P6AA.UK PLA-P5AA .UK, PLA-P6AA SPL WASHER CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR Q'ty / set Price Wiring Recom- Remarks Specifi- Parts No. Parts Name PLA-P5 PLA-P6 Diagram mended (Drawing Symbol cation Q'ty Unit Amount AA.UK AA AA.UK AA No.) S70 003 687...
  • Page 66 FUNCTIONAL PARTS PLA-P3AA.UK, PLA-P4AA.UK PLA-P3AA .UK, PLA-P4AA DRAIN PLUG DRAIN PLUG CAPACITOR TERMINAL BLOCK TERMINAL BLOCK ROOM TEMPERATURE THERMISTOR Part numbers that is circled is not shown in the figure. Price Q'ty / set Specifi- Remarks Wiring Recom- Parts No. Parts Name PLA-P3 PLA-P4...
  • Page 67 FUNCTIONAL PARTS PLA-P5AA.UK, PLA-P6AA.UK PLA-P5AA .UK, PLA-P6AA DRAIN PLUG DRAIN PLUG CAPACITOR TERMINAL BLOCK TERMINAL BLOCK ROOM TEMPERATURE THERMISTOR Part numbers that is circled is not shown in the figure. Q'ty / set Price Specifi- Remarks Wiring Recom- Parts No. Parts Name PLA-P5 PLA-P6...
  • Page 68: Optional Parts

    OPTIONAL PARTS 1. Program timer (PLA-P3 / 4 / 5 / 6AA.UK) Part No. PAC-SC32PTA (with set back function) Applied Service Ref. PLA-P3 / 4 / 5 / 6AA.UK 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)
  • Page 69 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 70: Names And Functions

    2. Program timer (PLA-P3 / 4 / 5 / 6AA .UK) Part No. PAC-YT32PTA Applied Service Ref. PLA-P3 / 4 / 5 / 6AA 2-1 Names and functions <PAC-YT32PTA> MODE A MODE B M O NIT O R SET BACK SET/MONITOR MODE A/B/OFF SET BACK...
  • Page 71 3. Multi-Functional Casement Part No. PAC-SG03TM-E Applied Service Ref. PLA-P3/4/5/6AA.UK, PLA-P3/4/5/6AA 4. High-Efficiency Filter Element (2. Multi-Functional Casement is needed.) Part No. PAC-SG01KF Applied Service Ref. PLA-P3/4/5/6/AA.UK, PLA-P3/4/5/6AA 5. Grill + Wireless Remote Controller Part No. PLP-6AALA PLP-6AALM Applied Service Ref. PLA-P3/4/5/6/AA.UK PLA-P3/4/5/6/AA 6.
  • Page 72 HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3 MARUNOUCHI CHIYODA-KU , TOKYO 100-8310 , JAPAN cCopyright 2001 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Sep. 2004 No.OC241 REVISED EDITION-B PDF Distributed in Sep. 2001 No.OC241 REVISED EDITION-A 350 Reprinted in Jul. 2001 No.OC241 50 Distributed in Apr.

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Mr.slim pla-p6aaMr.slim pla-p4aaMr.slim pla-p5aa

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