Gebruiksaanwijzing /service van het product PKH24FL van de fabrikant Mitsubishi Electronics
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TECHNICAL & SER VICE MANUAL SPLIT -TYPE, HEA T PUMP AIR CONDITIONERS CONTENTS 1. FEA TURES ·······························································2 2. P ART NAMES AND FUNCTIONS ····························3 3.
2 1 FEA TURES Indoor unit Remote controller Models Cooling capacity / Heating capacity SEER PKH18FL 18,000 / 18,600 [25,100] Btu/h 1 1.1 PKH24FL 24,000 / 25,000 [31,500] Btu/h 10.2 PKH30FL 30,000 / 33,000 [40,500] Btu/h 10.6 PKH36FL 34,200 / 38,000 [45,500] Btu/h 10.
3 P ART NAMES AND FUNCTIONS 2 ● Wireless remote controller ● When cover is open. 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 V ANE CONTROL button Used to change the air flow direction.
4 3 SPECIFICA TIONS FK 1 :48 -41 Capacity Moisture removal Power Consumption EER SEER HSPF COP INDOOR UNIT MODELS External finish Power supply Max.fuse size (time delay) Min.ampacity Fan motor Booster heater Airflow Hi-Lo Sound level Hi-Lo Unit drain pipe O.
5 D ATA 4 Models Models Outdoor intake air DB temperature ( ˚F ) PKH18FL 71 67 63 62.5 60 59 71 67 63 62.5 60 59 71 67 63 62.5 60 59 71 67 63 62.5 60 59 TC 21.0 19.5 18.2 18.1 17.2 16.8 27.9 26.1 24.3 24.1 23.0 22.5 34.9 32.6 30.4 30.2 28.8 28.2 39.8 37.
6 Models Models Outdoor intake air WB temperature ( ˚F ) PKH18FL 75 70 65 75 70 65 75 70 65 75 70 65 CA 12.1 12.4 12.7 16.3 16.6 17.0 21.5 21.9 22.5 24.7 25.3 25.9 PC 1.20 1.16 1.1 1 1.82 1.76 1.69 2.32 2.24 2.15 2.71 2.62 2.53 CA 14.1 14.4 14.7 18.9 19.
7 SHF=0.71 Does not include booster heater (1.9kW) T otal power consumption (kW) T otal capacity (x10 3 Btu/h) 30 35 24 18 12 3.0 2.5 2.0 1.5 15 25 35 45 55 65 T otal power consumption (kW) T otal capacity (x10 3 Btu/h) Outdoor intake air DB temperature ( F) Outdoor intake air WB temperature ( F) 36 30 24 18 12 3.
8 NOTES : A point on the curve shows the reference point. COOLING CAP ACITY HEA TING CAP ACITY COOLING CAP ACITY HEA TING CAP ACITY 71 67 63 71 67 63 42 36 30 24 4.
9 3. CONDENSING PRESSURE AND SUCTION PRESSURE Data is based on the condition under indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. <PKH18FL> Data is based on the condition under outdoor humidity 75%.
10 Data is based on the condition under indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. Data is based on the condition under outdoor humidity 75%. A point on the curve shows the reference point. 360 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 (psi.
11 Data is based on the condition under indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. Data is based on the condition under outdoor humidity 75%. A point on the curve shows the reference point. 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 (psi.
12 Data is based on the condition under indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. Data is based on the condition under outdoor humidity 75%. A point on the curve shows the reference point. 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 (psi.
13 4. ST ANDARD OPERA TION DA T A Models Item Electrical circuit Refrigerant circuit Indoor side Outdoor side V oltage Frequency T otal input Indoor fan current Booster heater current Outdoor fan current Comp. current Condensing pressure Suction pressure Discharge temperature Condensing temperature Suction temperature Comp.
14 Condition Standard temperature Maximum temperature Minimum temperature Maximum humidity Standard temperature Maximum temperature Minimum temperature 80 95 67 80 70 80 70 67 71 57 75 60 67 60 95 11 5 * 0 80 47 75 17 75 — — 75 43 65 15 Function Cooling Heating Model Airflow ( CFM ) Air speed ( ft/sec ) Coverage range ( ft ) 710 710 990 990 16.
15 6. NOISE CRITERION CURVES 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMA TE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE BAND SOUND PRESSURE LEVEL, dB re 0.
16 5 OUTLINES AND DIMENSIONS 9-1/4 1-25/32 9-1/4 1-25/32 9-1/4 9-1/4 1-25/32 1/2 13-3/8 7-3/4 1-21/32 2-9/32 Top Front Right side Left side 55-1/8 42-15/16 Air intake 9-1/4 C Knock out hole for right piping Refrigerant pipe.
17 66-5/32 9-1/4 53-15/16 Air Intake Front Knock out hole Right side 9-1/4 7-3/4 C for right piping B A A B C 4-1/32 Liquid pipe 1/2F Gas pipe Sleeve > < 1 > < 1 Sleeves are available on the market. Through hole 3-1/2 3-1/2~ 4 3/4F Bolt Drain hose O.
18 Remote controller Pipe temperature thermistor / Liquid (RT2) Distributor Restrictor valve Capillary tube PKH18FL : ( { 0.126x { 0.071x19.7) PKH24FL : ( { 0.
19 WIRING DIAGRAM 7 MODELS PKH18FL, PKH24FL, PKH30FL, PKH36FL WIRING DIAGRAM GR L1 L2 POWER SUPPLY ~(1PHASE) AC208/230V 60Hz GROUND 3 LED(HOT ADJUST) LED(RUN INDICATOR) LED1 LED2 WIRELESS REMOTE CONTROLLER W.
20 8 OPERA TION FLOW-CHART START Power circuit breaker Check SW ON twice Operation SW ON “OFF” timer “ON” timer STOP Set time complete Set time complete 1 NO NO NO NO NO NO NO NO NO NO NO NO Y.
21 COOL operation Four-way valve/OFF Initial COOLING NO NO NO NO NO YES YES YES YES YES YES NO YES YES YES YES YES YES YES YES YES YES YES NO NO NO NO YES NO NO NO NO NO NO NO NO NO w 8 w 9 Vane initi.
22 w 8—9 Refer to page OC276-21. w 12 When room temperature is 64°F or below , the compressor cannot operate. When room temperature rises over 64°F the compressor starts after a 3-minute time delay . w 13 Compressor ON time is decided by room temperature.
23 Heat operation initial HEATING Vane setting notch Vane initial setting defrosting Heating area Defrost release Defrost 30 min. elapse Outdoor unit trouble Four-way valve ON Hot adjust in process Co.
24 9 MICROPROCESSOR CONTROL ● Compressor and outdoor fan : ON- OFF ● Operation mode change :COOL- HEA T . 1.OUTLINE OF MICROPROCESSOR CONTROL ● OFF-ON switching. ● COOL/DRY -AUTO-HEA T selector switching. ● Thermostat setting. ● TIMER mode selector-switching and T imer setting.
25 2. INDOOR UNIT CONTROL 2-1 COOL operation <How to operate> 1 Press POWER ON/OFF button. 2 Press the MODE button to display COOL. 3 Press the TEMP( or ) button to set the desired temperature. NOTE : Set temperature changes 2°F when the TEMP( or ) button is pressed one time.
26 (1) Compressor control 1 3-minute time delay T o prevent overload, the compressor will not start within 3 minutes after stop. 2 The compressor runs when room temperature is higher than set temperature. The compressor stops when room temperature is equal to or lower than the set temperature.
(3) Auto vane control Auto vane position is set to 10 degrees airflow at the start-up of COOL operation. It can then be changed by the remote controller . (a) V ane position set mode & swing mode. ( i ) Every time AIR DISCHARGE button is pressed, setting will be changed .
28 (4) Detecting abnormalities in the outdoor unit After the compressor has been continuously operated for 3 minutes, if the difference between the indoor coil temperature and room temperature is out of RANGE C for 1 minute, the indoor fan speed will turn to LOW .
29 <DR Y operation time chart> Minimum 3 minutes w 1 ON Thermostat Indoor fan Auto vane Booster heater Compressor ON DRY MODE DRY MODE ON ON OFF OFF ON OFF OFF OFF OFF Operation starts by POWER button ON. Operation stops by POWER button OFF. Room temperature becomes equal to set temperature.
30 1) Compressor control 1 3-minute time delay T o prevent overload, the compressor will not start within 3 minutes after stop. 2 The compressor runs when room temperature is higher than set temperature. The compressor stops when room temperature is equal to or lower than the set temperature.
31 2-3 HEA T operation Minimum 3 minutes w 2 ON Thermostat Indoor fan Auto vane Booster heater Compressor Power ON lamp STAND BY lamp ON ON LOW or HIGH LOW or HIGH ON OFF OFF OFF Horizontal Horizontal.
32 (1) Compressor control 1 3-minute time delay T o prevent overload, the compressor will not start within 3 minutes after stop. 2 The compressor runs when the room temperature is lower than the set temperature. The compressor stops when the room temperature is equal to or higher than the set temperature.
33 (5) Detecting abnormalities in the outdoor unit When the outdoor unit is determined to be abnormal by the following causes, the compressor will stop and the check code “ P8 ” will appear on the remote controller display . ( i ) During compressor ON while hot adjustment is set.
34 2-4 AUTO operation (Automatic COOL/HEA T change over operation) (1) Initial mode 1 When AUTO operation starts after unit OFF . ● If the room temperature is higher than the set temperature, operation starts in COOL mode. ● If the room temperature is equal to or lower than the set temperature, operation starts HEA T mode.
35 <How to operate> T o change the air flow direction, press V ANE ( ) button. (1) COOL/DR Y operation At the start-up of COOL or DRY operation, the discharge direction in automatically set to 10°. After , it can be changed to another direction with V ANE ( ) button on the remote controller .
36 2-6 TIMER operation 2-7 T est run <Timer function> AUTO ST OP ·········The air conditioner stops after the set time lapses. AUTO ST ART ········The air conditioner starts after the set time lapses. AUTO OFF ············Timer is not active.
37 (1) Indoor coil temperature code During the test run, the indoor coil temperature code from 1 to 15 is displayed on the remote controller instead of room temperature. The code should fall with the lapse of time in normal COOL operation, and should rise in normal HEA T operation.
38 2-9 Dip switch and jumper connector functions. Each figure shows the initial factory setting. 2-9-1 On remote controller board (1). On indoor controller board 1.
39 2-10 INDOOR F AN CONTROL Indoor fan relay output. (a) During fan ON The indoor fan relay turns ON. One second later , the phase control will start. (b) During fan OFF The phase control turns OFF . One second later , the indoor fan relay will turn OFF .
40 2-1 1 Wireless remote controller pair number setting operation ON/OFF TEMP FAN VANE MODE CHECK LOUVER TEST RUN AUTO STOP AUTO START h min RESET SET CLOCK MODEL SELECT 4 A Model No. 3 2 , 5 1 T urn on the main power to the unit. 2 Press the SET button with the point of a ball-point pen or the like.
41 TROUBLESHOOTING 10 1. Self-diagnostic function Self-check 1 T urn on the main power to the unit. 2 Press the button twice continuously . (Start this operation from the status of remote controller display turned off.) A begins to light. B “00” begins to blink.
42 Check code Diagnosis of malfunction Cause Check points 4 Abnormality of drain sensor 1) Bad contact of transmission wire 2) Damaged thermistor 1) Check the connector . 2) Measure the resistance of the thermistor (between ➃ - ➄ of CN50). As for the normal resistance, refer to the case of 1.
43 3. WRONG WIRING ON SITE 3-1 Between remote controller and indoor unit If the wire is disconnected between the remote controller and the indoor unit, nothing is displayed on the remote controller when the POWER button is pressed. The beep sound will also not be heard.
44 4. HOW TO CHECK THE P ARTS Room temperature thermistor (RT1) Pipe temperature thermistor (RT2) Fan motor (MF) Disconnect the connector , then measure the resistance using a tester . (Surrounding temperature 50°F to 86°F) Measure the resistance between the terminals using a tester .
45 DISASSEMBL Y PROCEDURE 11 OPERA TING PROCEDURE PHOTOS&ILLUSTRA TION Metal fixture Screws 1. Removing the lower side of the indoor unit from the instal- lation plate (1) Remove the 2 screws. Hang the indoor unit hangers to the catches on the instal- lation plate.
46 OPERA TING PROCEDURE PHOTOS&ILLUSTRA TION (8) Remove the screws of the indoor controller board case, and pull out the indoor controller board case. Then the transformer and the capacitor and relay can be serviced. 5. Removing the vane motor (1) Remove the right side panel.
47 OPERA TING PROCEDURE PHOTOS 8. Removing the line flow fan and the fan motor (1) Remove the left and right side panels. (2) Remove the grilles. (3) Remove the electrical box. (4) Remove the drain pan. (5) Loosen the screw that fixes the line flow fan to the fan motor .
48 12 P ARTS LIST No. Parts No. Parts Name Specifications Remarks (Drawing No.) Wiring Diagram Symbol Q'ty / set PKH FL FL FL 1 2 3 4 5 SLEEVE BEARING BEARING MOUNT LEFT LINE FLOW FAN LEFT LINE F.
49 No. Parts No. Parts Name Specifications Remarks (Drawing No.) Wiring Diagram Symbol Q'ty / set PKH 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 DRAIN PAN DRA.
50 No. Parts No. Parts Name Specifications Remarks (Drawing No.) Wiring Diagram Symbol Q'ty / set PKH FL Part number that is circled is not shown in the figure. 1 2 3 4 5 6 7 8 9 10 11 12 LEFT SIDE PANEL UNDER PLATE UNDER PLATE NOSE NOSE FILTER W.
OC276-A-2.qxp 03.11.25 9:07 AM Page 51.
TM c Copyright 2001 MITSUBISHI ELECTRIC ENGINEERING CO., L TD. Distributed in Nov . 2003 No.OC276 REVISED EDITON-A PDF 9 Distributed in Dec. 2001 No.OC276 . New publication, effective Nov . 2003 Specifications subject to change without notice. OC276-A-2.
3400 Lawrenceville Suwanee Road ● Suwanee, Georgia 30024 Toll Free: 800-433-4822 ● Toll Free Fax: 800-889-9904 www.mrslim.com Specifications are subject to ch ange without notice.
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