Mitsubishi Electric PL12FK1 - Manuals

Page 2 - TECHNICAL CHANGE; Differences with OC001 which is a basic service manual.

OC194-2 1 TECHNICAL CHANGE Change points Optional parts Program timer FK2 Switch for temperature unit Switch for louvers — OFF Control change of the normal and twin Change of the unit No.1 and No.2 — — PAC–SK65PT Canceled Canceled Addition of "Mode selector" ON Addition of "Not yet used&...

Page 3 - FEATURES; ) Self-Diagnostic Feature Indicates Faults Instantly

OC194-3 FEATURES 2 1. SPACE-SAVING CENTRALLY LOCATED CEILING RECESSED INSTALLATION 2. 4-WAY AIR FLOW SYSTEM This series allows you to select from 2, 3, and 4 way air flow directions according to your requirement. As a result, you getsuperb flexibility in choosing a configuration that gives you maxim...

Page 4 - PART NAMES AND FUNCTIONS; Remote controller operation buttons; FILTER button; FAN SPEED button; Remote controller; CHECK-TEST RUN button

OC194-4 3 PART NAMES AND FUNCTIONS Remote controller operation buttons TIMER OFF TIMER CHECK SET TEMP. DRY COOL FAN CLOCK AUTO AUTO START STOP MODE TIMER ON/OFF CLOCK/TIMER FAN SPEED AIR DISCHARGE FILTER CHECK TEST RUN AIR SWEEP SET TEMP. TIMER SET F FAN SPEED SWING REMOTE CONTROLLER PAR-JC240KUS AU...

Page 5 - Caution; “NOT AVAILABLE” is displayed when the AIR SWEEP button are pressed.; Remote controller display

OC194-5 TIMER OFF TIMER CHECK SET TEMP. DRY COOL FAN CLOCK AUTO AUTO START STOP MODE TIMER ON/OFF CLOCK/TIMER FAN SPEED AIR DISCHARGE FILTER CHECK TEST RUN AIR SWEEP SET TEMP. TIMER SET F FAN SPEED SWING REMOTE CONTROLLER PAR-JC240KUS AUTO RETURN Operation lamp This lamp lights during operation,goes...

Page 6 - SPECIFICATIONS

OC194-6 4 SPECIFICATIONS Capacity Power Consumption EER SEER INDOOR UNIT MODELS External finish Power supply Max.fuse size (time delay) Min.ampacity Fan motor Airflow Hi-Lo Moisture removal Sound level Hi-Lo Cond. drain pipe O.D. Dimensions Weight External finish Dimensions Weight OUTDOOR UNIT MODEL...

Page 8 - DATA; ) COOLING CAPACITY CORRECTIONS

OC194-8 5 DATA MODELS : PL12FK 1 , PL18/24/30FK2 1 , PL36FK3 1 , PL42FK2 1 1. PERFORMANCE DATA 1) COOLING CAPACITY Models Indoor air Outdoor intake air DB temperature(°F) PL12FK 1 71 67 63 71 67 63 71 67 63 71 67 63 71 67 63 71 67 63 TC 14.3 13.2 12.1 21.2 19.8 18.5 27.4 25.6 23.8 35..8 33.2 30.9 41...

Page 9 - NOTES : A point on the curve shows the reference point.; COOLING CAPACITY

OC194-9 2. PERFORMANCE CURVE NOTES : A point on the curve shows the reference point. PL12FK 1 COOLING CAPACITY PL18FK2 1 COOLING CAPACITY T otal po w er consumption (kW) T otal capacity (x10 3 Btu/h) Outdoor intake air DB temperature ( F) 24 21 12 18 15 2.5 2.0 1.5 1.0 63 67 71 63 67 71 SHF=0.76 0 3...

Page 11 - CONDENSING PRESSURE AND SUCTION PRESSURE; COOLING MODE

OC194-11 <PL18FK2 1 > COOLING MODE 3. CONDENSING PRESSURE AND SUCTION PRESSURE Data is based on the condition of indoor humidity 50%.Air flow should be set at HI.A point on the curve shows the reference point. <PL12FK 1 > 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 19...

Page 14 - STANDARD OPERATION DATA

OC194-14 4. STANDARD OPERATION DATA 750 750 750 750 760 760 840 840 Capacity SHF Input INDOOR UNIT MODEL Power supply (V, phase, Hz) Input Fan current OUTDOOR UNIT MODEL Power supply (V, phase, Hz) Input Comp. current Fan current Condensing pressure Suction pressure Discharge temp. Condensing temp. ...

Page 15 - NOISE CRITERION CURVES; air is blown out horizontally from the unit at the High fan setting.

OC194-15 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE B AND SOUND PRESSURE LEVEL, dB re 0.002 MICR O B A R BAND CENTER FREQUENCIES, Hz PL12FK 1 Hi Lo 43 SPL(dB) 35 LINE NOTCH 7. NOISE ...

Page 16 - NOISE CRITERION CURVES; UNIT; Ambient temperature 80 ̊F

OC194-16 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE B AND SOUND PRESSURE LEVEL, dB re 0.002 MICR O B A R BAND CENTER FREQUENCIES, Hz PL24FK2 1 Hi NOTCH Lo 47 SPL(dB) 39 LINE 8. NOISE...

Page 17 - OUTLINES AND DIMENSIONS

OC194-17 OUTLINES AND DIMENSIONS 6 Unit : inch 1. INDOOR UNIT PL12FK 1 / 18/24FK2 1

Page 19 - Remote controller; REFRIGERANT SYSTEM DIAGRAM

OC194-19 Unit : inch 2.Remote controller FILTER CHECK MODE TEST RUN TIMER OFF TIMER CHECK SET TEMP. CLOCK AUTO AUTO START STOP SWING FAN SPEED 5-1/8 4-3/4 3/4 3/32 23/32 AUTO RETURN FAN Indoor coil thermistor RT2 Distributor Refrigerant pipe (option) { 3/8" (with heat insulator) Refrigerant pipe...

Page 20 - WIRING DIAGRAM; MODELS PL12FK

OC194-20 WIRING DIAGRAM 8 MODELS PL12FK 1 PL18FK2 1 PL24FK2 1 WIRING DIAGRAM SYMBOL C1 CN1<R.B> CN2<R.B> CN51<I.B> CN2L<I.B> DP DS F1<I.B> F2 H2 I.B LS MF1 MV R.B NAME Fan motor capacitor Connector <program timer> Connector <remote switch> Connector <cent...

Page 24 - It is not possible to set the fan speed with the remote controller; DRY OPERATION

OC194-24 w 8—9 Refer to page OC194-23. 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. Refer to page OC194-29. w 14 In dry opera...

Page 25 - MICROPROCESSOR CONTROL; OUTLINE OF MICROPROCESSOR CONTROL; OUTPUT to outdoor unit

OC194-25 MICROPROCESSOR CONTROL 10 ● Compressor and outdoor fan : ON-OFF 1.OUTLINE OF MICROPROCESSOR CONTROL ● OFF-ON switching. ● COOL/DRY-FAN selector switching. ● Thermostat setting. ● TIMER mode selector-switching and Timer setting. ● HIGH-LOW fan speed switching. ● AUTO Vane selector (AIR DISCH...

Page 26 - INDOOR UNIT CONTROL; Coil frost prevention; NOTE: Set temperature changes 2°F when the SET TEMP. button

OC194-26 2. INDOOR UNIT CONTROL 2-1 COOL operation (1) Compressor control 1 3-minute time delay To 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 eq...

Page 28 - (4) Detecting abnormalities in the outdoor unit; RANGE A

OC194-28 (4) Detecting abnormalities in the outdoor unit After the compressor has been continuously operated for 3 minutes, if the difference between the indoor coil temperatureand room temperature is out of RANGE C for 1 minute, the indoor fan speed will turn to LOW. Five minutes later, if the dif-...

Page 29 - NOTE: The set temperature changes 2°F when the SET TEMP.

OC194-29 <DRY operation time chart> Minimum 3 minutes w 1 ON Thermostat Indoor fan Auto vane Drain pump Compressor ON ON DRY MODE DRY MODE ON OFF OFF ON OFF 3 minutes OFF OFF Operation starts by P O W E R b u t t o n ON. Operation stops by P O W E R b u t t o n OFF. Room temperature becomes eq...

Page 31 - controller continues.; -3 Auto vane control

OC194-31 <How to operate>To change the air flow direction, press AIR DISCHARGE button. 1 20° 2 45° 3 60° 4 5 70° SWING (1) COOL/DRY operation At the start-up of COOL or DRY operation, the airflow direction in automatically set to 20°. After, it can be changed toanother direction with AIR DISCH...

Page 33 - -8 Emergency operation

OC194-33 (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 roomtemperature. The code should fall with the lapse of time in normal COOL operation, and should rise in normal HEAToperation. (2) Trouble du...

Page 34 - DIP SWITCH FUNCTIONS

OC194-34 3 DIP SWITCH FUNCTIONS Each figure shows the initial setting by factory. 3-1 On remote controller board(1) SW17(Address selector) SW17-1 ~ 6) Switch for address settingSW17-7) When two remote controllers are used, this switch sets the controller function. OFF : The remote controller is set ...

Page 35 - INDOOR FAN CONTROL

OC194-35 SW1-6) Switch for set temperature adjustment in heating mode This is not available for series PL. SW1-7) Switch for fan speed during thermostat OFF in heating mode This is not available for series PL. SW1-8) Switch for fan motor operation in heating mode This is not available for series PL....

Page 36 - TROUBLESHOOTING; TROUBLES IN TEST RUN

OC194-36 11 TROUBLESHOOTING The display “CENTRALLYCONTROLLED” on remotecontroller does not disap-pear. 1) Wrong address setting of remote con- troller/indoor controller board. 2) Timer adapter is connected to the remote controller. 3) Signal transmission error between indoor unit and remote controll...

Page 39 - WRONG WIRING ON SITE; -1 Between remote controller and indoor unit

OC194-39 Wrong wiring Thermostat Phenomenon Outdoor Indoor 1 2 3 1 2 3 OFF Operation stops. ON 4-Way valve is turned to ON. 9 minutes later, the check code “P8”appears on the remote controller display. Outdoor Indoor 1 2 3 1 2 3 OFF The outdoor unit stops. ON Operation stops. 9 minutes later, the ch...

Page 40 - OTHER TROUBLES AND CAUSES; “CENTRALLY CONTROLLED” is displayed.

OC194-40 Vanes do not work. Vane motor does not work.Connector is poorly connected.Vane motor is poorly assembled.Indoor controller board is damaged. Unit stops after 5 to20 seconds operation Protection function is working. Air discharge displayis OFF and AIR DIS-CHARGE button doesnot operate. Indoo...

Page 41 - How to check the parts PL12FK; Vane motor

OC194-41 4. How to check the parts PL12FK 1 /18FK2 1 /24FK2 1 /30FK2 1 /36FK3 1 /42FK2 1 Parts name Check points Disconnect the connector then measure the resistance using a tester. (Surrounding temperature 50 - F~86 - F) Measure the resistance between the terminals using a tester. (Surrounding temp...

Page 43 - -WAY AIR FLOW SYSTEM; Internal surface view of the grill

OC194-43 4-WAY AIR FLOW SYSTEM 12 Using this grill enables to select the air discharge direction. The air flow can also be regulated by adjusting the widths of eachdischarge outlet. Choose the adequate method according to the conditions in the room where the panel is to be installed. W For 2-directi...

Page 44 - For 30/36/42FK, open the longer outlets and close the shorter

OC194-44 Opening measurements for PLH30/36/42FK 1 are within ( ). ● ● Regular ceiling height When ceiling is of regular height (For example 8.2ft) set each out-let at a standard width (11-13/16). ● ● Relatively high ceiling Set the outlets during installation.The outlet width can be adjusted in the ...

Page 46 - Examples of application Precautions

OC194-46 Selecting arrangement of discharge outlet and adjusting the width for PL30FK2 1 / 36FK3 1 / 42FK2 1 . Constrained Conditions When Selecting Discharge Outlet Width.(PL30/36/42FK)Total width of four outlets must exceeds 55-1/8. Unit : inch When the unit is installed near a window, the longer ...

Page 47 - Sequential operation method with duct fan.; (1) Connect optional multiple remote controller adapter; External pressure of duct

OC194-47 FRESH AIR INTAKE (Installation at site) 1. Location for installing fresh air intake 2. Air flow & static pressure conditions for fresh air intake Detail drawing of fresh air intake Be sure to use a duct fan (booster fan) when applying freshair intake. As for sequential operation with th...

Page 48 - OO

OC194-48 BRANCH DUCT (installation at site) 1. Branch Duct Installation Procedure 2. Branch Duct Installation To discharge air from a branch duct, install it during the initial installation. Install branch duct at site by following procedure(1) Remove insulation along the broken-lines on unit surfac...

Page 50 - SYSTEM CONTROL; VARIETY OF SYSTEM CONTROL FUNCTIONS

OC194-50 13 SYSTEM CONTROL Unit Remote control display board Remote controller Unit Unit Two remote controllers can be used to control either oneunit or a group of units. Units can then be controlled froma distance or at close range. Units operate according tothe latest command from either remote co...

Page 51 - GROUP CONTROL BY A SINGLE REMOTE CONTROLLER; Figure 2

OC194-51 2. GROUP CONTROL BY A SINGLE REMOTE CONTROLLER A maximum of 50 units can be started in order according to the dip switch settings 2-1 How to wire (1) Connect the remote controller to the double terminal block on the indoor controller board of the master unit, that is,No.0 unit. (See Figure ...

Page 52 - CONTROL USING TWO REMOTE CONTROLLERS; -2 Remote controller LCD indication; (1) The same indications always appear on both the; REMOTE ON-OFF AND INDIVIDUAL REMOTE CONTROLS; Figure 4; Figure 5

OC194-52 3. CONTROL USING TWO REMOTE CONTROLLERS Two remote controllers can be used to control either one unit or a group of units. Units operate according to the latest com-mand from either of the two remote controllers.Before operation, be sure to set one remote controller as the “main controller”...

Page 53 - -3 Switch function of remote ON-OFF switch

OC194-53 NOTE1 : Install the relay box where you can be serviced it easily.NOTE2 : For control circuit wiring, use a wire of No. 14 AWG or a control cable according to the power supply of control circuit. NOTE3 : When the power supply of the control circuit is 208/230V AC, ● Do not connect the contr...

Page 54 - MULTIPLE REMOTE CONTROL DISPLAY; indoor controller board.; AUTO RESTART FUNCTION; Indoor control Board; TIMER OPERATION OR THE OPERATION BY AN EXTERNAL SIGNAL

OC194-54 6. MULTIPLE REMOTE CONTROL DISPLAY You can control several units with a multiple remote control display, bywiring an optional multiple display adapter (PAC-SA88HA-E) with relaysand lamps on the market.How to wire (1) Connect the multiple display adapter to the connector CN51 on the indoor c...

Page 55 - DISASSEMBLY PROCEDURE; OPERATING PROCEDURE; Removing the air intake grille; (1) Slide the lever in the direction of the arrow; Removing the fan motor; Photo 1

OC194-55 DISASSEMBLY PROCEDURE 14 OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 1. Removing the air intake grille (1) Slide the lever in the direction of the arrow 1 . (2) Open it 90 deg.(3) Slide the intake grill in the direction of the arrow 2 and remove it. (4) Slide the two knobs on the left and ...

Page 56 - thermistor; Photo 5; Removing the drain pan and terminal box; Photo 8; Removing the heat exchanger; Photo 9

OC194-56 OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 4. Removing the drain pump, drain sensor, and indoor coil thermistor (1) Remove the fan (nut).(2) Remove the electrical box (3 screws).(3) Remove the service panel screws (2 pcs).(4) Hold the knob and remove the service panel.(5) Remove the drain...

Page 57 - PARTS LIST; Part number that is circled is not shown in the figure.

OC194-57 15 PARTS LIST PL12FK, PL18FK2, PL24FK2 PANEL PARTSPL12FK 1 , PL18FK2 1 , PL24FK2 1 1 2 3 4 5 6 1 1 1 4 1 1 1 1 1 4 1 1 1 1 1 4 1 1 1 1 1 4 1 1 MV F2 INDOOR PANEL 250V 0.5A No. Parts No. Parts Name Specifications Drawing No. Q'ty/set Price Unit Amount Remarks Circuit Diagram Symbol Recom- me...

Page 63 - OPTIONAL PARTS; -1 Program timer specifications

OC194-63 OPTIONAL PARTS 16 1-2 Feature of program timer(1) Daily timer function Daily timer can be set in 30 minutes units for up to 24 hours.Each unit can be set for unit ON, unit OFF, or setback operation. (2) Setback operation (PAC-SC32PTA) Set back operation is useful for reducing running costse...

Page 64 - -4 Names and functions

OC194-64 1-4 Names and functions <PAC-SC32PTA> WEEKLY TIMER SETTING DISPLAY Sets timer for a week. SET/MONITOR SET S M T W T F S MONITOR PROGRAM TIMER PAC-SC32PTA TODAY ON WEEKLY SETTING OFF ON SET BACK OFF CLOCK DAILY TIMER SET BACK SET BACK DAILY SETTING 12 15 18 21 24 0 3 6 12 15 CURRENT TI...

Page 65 - MULTIPLE REMOTE CONTROLLER ADAPTER; HIGH EFFICIENCY FILTER ELEMENT

OC194-65 1 2 3 4 5 BRNREDORNYLWGRN 3. MULTIPLE REMOTE CONTROLLER ADAPTER This adapter is needed for remote indication (operation/check). Adapter connection is described on page 49. Part No. PAC-SA88HA-E Part No. Applicable Model PAC-SG03TM-E PL12/18/24/30/36/42FK Part No. Applicable Model PAC-SG01KF...

Page 67 - 400 Lawrenceville Suwanee Road; Specifications are subject to change without notice.

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 change without notice.