Mitsubishi Electric PCA-A24GA - Manuals

Mitsubishi Electric PCA-A24GA – Manual in PDF format online.

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Manual

Manual Mitsubishi Electric PCA-A24GA

Summary

Page 2 - • Indoor controller board has been changed.

2 1 TECHNICAL CHANGES 2 REFERENCE MANUAL Service Ref. PUZ-A18/24/30/36/42NHAPUZ-A18/24/30/36/42NHA-BSPUY-A12/18/24/30/36/42NHA (1) PUY-A12/18/24/30/36/42NHA (1) -BS Service Manual No. OC367 2-1. OUTDOOR UNIT SERVICE MANUAL Series (Outdoor unit) PUZ-A·NHA PUZ-A·NHA-BSPUY-A·NHA PUY-A·NHA-BS Manual No....

Page 3 - Cautions for units utilising refrigerant R410A; Use new refrigerant pipes.; Be sure to use a filter drier for new refrigerant.; SAFETY PRECAUTION

3 Cautions for units utilising refrigerant R410A 3-2. CAUTIONS RELATED TO NEW REFRIGERANT Use new refrigerant pipes. Make sure that the inside and outside of refrige-rant piping is clean and it has no contaminationsuch as sulfur hazardous for use, oxides, dirt, shaving particles, etc.In addition, us...

Page 4 - Specifications

4 Gravimeter Unit [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. No. Specifications 1 Gauge manifold ·Only for R410A ·Use the existing fitting specifications. (UNF1/2) ·Use high-tension side pressure of 5.3MPa·G or over. 2 Charge hose ·Only for R410A ·Use pre...

Page 5 - PART NAMES AND FUNCTIONS; Indoor Unit; Wired remote controller

5 PART NAMES AND FUNCTIONS 4 ● Indoor Unit Air outlet Intake grille Air intake Left/right guide vanes Change the direction of airflowfrom the horizontal blower. Long-life filter Removes dust and foreign matter from air coming inthrough the grille (Recommended cleaning interval :Approx. every 2,500 o...

Page 6 - ̊F ̊C; Display Section

6 ● Wired remote controller ● ● ˚F˚C ˚F˚C ERROR CODE AFTER TIMER TIME SUN MON TUE WED THU FRI SAT ON OFF Hr AFTER FILTER FUNCTION ONLY1Hr. WEEKLY SIMPLE AUTO OFF Note: “PLEASE WAIT” messageThis message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the uni...

Page 7 - Wireless remote controller

7 ON/OFF TEMP FAN VANE TEST RUN AUTO STOP AUTO START h min LOUVER MODE CHECK RESET SET CLOCK MODEL SELECT NOT AVAILABLE SWING CHECK FAN TEST RUN ˚F ˚C AMPM STOP START AMPM COOL DRY AUTO FAN HEAT VANE CONTROL button Changes the air flow direction. CLOCK button RESET button SET button ON/OFF button Th...

Page 8 - SPECIFICATIONS

8 SPECIFICATIONS 5 AA kW F.L.A m 3 /min(CFM) Pa(mmAq) dB mm(in.)mm(in.)mm(in.)mm(in.) kg(lbs) Service Ref.Power supply(phase, cycle, voltage) Max. Fuse SizeMin.Circuit Ampacity External finishHeat exchangerFan Fan(drive) o No. Fan motor outputFan motor Airflow(Low-Medium2-Medium1-High) External stat...

Page 9 - NOISE CRITERION CURVES

9 NOISE CRITERION CURVES 6 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 BAND CENTER FREQUENCIES, Hz OCT A VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µ bar) PCA-A24GAPCA-A30GAPCA-A24GA 1 PCA-A3...

Page 10 - OUTLINES AND DIMENSIONS; Ceiling; Allowing clearances

10 7 OUTLINES AND DIMENSIONS PCA-A24GA PCA-A24GA 1 PCA-A30GA PCA-A30GA 1 9 11-13/16(300) 3-15/16(100) 2-1/8(54) 2-1/4(57) 7/16(11) 9 Knockout hole for fresh air intake (6~7) 1/4~9/32 1-21/32(42) 7-1/16(179) 1-1/4(32) 6-11/32(161) 20-21/32(525) 1-1/2(38) 3-1/8(79) 10-3/8(263) 6-3/4(171) 5-7/16(138) 3...

Page 12 - WIRING DIAGRAM

12 PCA-A24GA PCA-A30GA PCA-A36GA PCA-A42GA PCA-A24GA 1 PCA-A30GA 1 PCA-A36GA 1 PCA-A42GA 1 [Emergency operation procedure] When the wired remote control or the indoor unit microcomputer has failed, but all other components work properly, if you set the switch (SWE) on the indoor control board ON, th...

Page 13 - Heat exchanger; REFRIGERANT SYSTEM DIAGRAM

13 PCA-A24GA PCA-A30GA PCA-A36GA PCA-A42GA PCA-A24GA 1 PCA-A30GA 1 PCA-A36GA 1 PCA-A42GA 1 Pipe temperature thermistor/liquid (TH2) Distributorwith strainer#50 Condenser/evaporator temperature thermistor(TH5) Room temperature thermistor (TH1) Refrigerant flow in cooling Refrigerant flow in heating S...

Page 14 - TROUBLESHOOTING

14 10 TROUBLESHOOTING <Error code display by self-diagnosis and actions to be taken for service (summary)>Present and past error codes are logged and displayed on the wired remote controller or controller board of outdoor unit.Actions to be taken for service and the inferior phenomenon reoccur...

Page 19 - 0-3. TROUBLESHOOTING BY INFERIOR PHENOMENA

19 (For the separate indoor/outdoor unit power sup- ply system) 1 Power supply of 208/230V AC is not supplied to indoor unit. 2 The connectors of the optional replacement kit are not used. 3 Defective indoor controller board 4 Defective indoor power board 10-3. TROUBLESHOOTING BY INFERIOR PHENOMENA ...

Page 21 - For emergency operation of cooling or heating

21 10-4. WHEN WIRED REMOTE CONTROLLER OR INDOOR UNIT MICROCOMPUTER TROUBLES 1. If there is not any other problem when trouble occurs, emergency operation starts as the indoor controller board switch (SWE) is set to ON.During the emergency operation the indoor unit operates with Indoor fan at high sp...

Page 23 - to; Thermistor R

23 0 10 20 30 40 50 -20 -10 0 10 20 30 40 50 < Thermistor for lower temperature > Temperature Resistance (k " ) : -4 -14 32 50 68 86 104 122 ˚F 10-6.TEST POINT DIAGRAM 10-6-1. Power boardPCA-A24GA PCA-A30GA PCA-A36GA PCA-A42GA PCA-A24GA 1 PCA-A30GA 1 PCA-A36GA 1 PCA-A42GA 1 CNSKConnect to ...

Page 25 - Service board; 0-7. FUNCTIONS OF DIP SWITCH AND JUMPER WIRE

25 SW1 Setting by the dip switch and jumper wire Functions Jumper wire Modelsettings Capacitysettings Pair numbersetting withwireless remotecontroller For service board Remarks SW2 J41J42 Unit type setting JP1 Indoor controller board type setting JP3 012 3 ~ 9 Wireless remote controller setting Cont...

Page 26 - DISASSEMBLY PROCEDURE; Removing the air intake grille; (1) Slide the intake grille holding 2 knobs backward to open; OPERATING PROCEDURE; Removing the electrical box; remove the electrical cover.; Figure 1

26 DISASSEMBLY PROCEDURE 11 1. Removing the air intake grille (1) Slide the intake grille holding 2 knobs backward to open the intake grille. (2) When the intake grille left open, push the stoppers on the rear 2 hinges to pull out the intake grille. OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 2. ...

Page 27 - Figure 3; Removing the side panel; side panel by sliding the panel to the front.; Removing the sirocco fan; upper side of the casing.; Photo 2

screw side panel sliding the panelto the front 27 Figure 3 5. Removing the side panel (1) Remove the air intake grille.(2) Remove the screw from the side panel, and remove the side panel by sliding the panel to the front. OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 3. Removing the fan motor <M...

Page 28 - Removing the Under panel; Photo 4

28 OPERATING PROCEDURE PHOTOS 6. Removing the vane motor <MV> (1) Remove the air intake grille. (See the figure 1)(2) Remove the left side panel. (See the figure 3)(3) Remove the relay connector of vane motor.(4) Remove the electrical box.(5) Remove the screws of vane motor, then remove vane m...

Page 29 - Removing the drain pan; and left side drain pan.; Removing the guide vane; Photo 8

29 OPERATING PROCEDURE PHOTOS 9. Removing the drain pan (1) Remove the air intake grille. (See the figure 1)(2) Remove the beam.(3) Remove the side panels of right and left. (See the figure 3)(4) Remove the under panel. Remove the screws of the right and left side drain pan. (5) Remove the 2 insulat...

Page 30 - Removing the heat exchanger

30 OPERATING PROCEDURE PHOTOS 12. Removing the heat exchanger (1) Remove the air intake grille. (See the figure 1)(2) Remove the beam.(3) Remove the side panel (right and left). (See the figure 3)(4) Disconnect the relay connector of the pipe thermistor.(5) Remove the under panel. (See the photo 7)(...

Page 31 - Remarks

31 PARTS LIST (non-RoHS compliant) 12 No. Parts No. Parts Name Specifications Wiring Diagram Symbol Recom- mended Q'ty 1 2 3 4 5 678 9 10 11 12 13 1415 16 1 11 12 1111 11 3 1 111 MFMF TH1 TH2TH5 D09C4P70MSD10C4P90MS Remarks (Drawing No.) R01 29J 130R01 35J 130R01 43E 126T7W 30J 762T7W E14 762R01 700...

Page 32 - Part numbers that are circled are not shown in the figure.

32 STRUCTURAL PARTPCA-A24GAPCA-A30GAPCA-A36GAPCA-A42GA No. Parts No. Parts Name Specifications 24/30 Wiring Diagram Symbol Recom- mended Q'ty PCA-A GA 1 11 1 4422111 1 11 1 1 1 2 1111 1 1 11 36/42 11 1 1442211 1 11 1 1 1 1 2111 1 1 111 MVMV Remarks (Drawing No.) 1 2 3 4 56789 10 11 12 13 14 15 16 17...

Page 34 - RoHS PARTS LIST; Parts Name; RoHS

34 13 RoHS PARTS LIST No. Parts No. Parts Name Specifications Wiring Diagram Symbol Recom- mended Q'ty 1 2 3 4 5 678 9 10 11 12 13 1415 16 RoHS GGGGGGGGGGGGGGGGGGGGGGGG 1 11 12 1111 11 3 1 111 MFMF TH1 TH2TH5 D09C4P70MSD10C4P90MS Remarks (Drawing No.) R01 30J 130R01 32J 130R01 45E 126T7W 40J 762T7W ...