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OC275-35

DISASSEMBLY PROCEDURE

12

OPERATING PROCEDURE

PHOTOS&ILLUSTRATION

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.

Hanger of indoor unit

Catch of installation plate

2. Removing the right side panel

(1) Remove the 2 screws of the right side panel:one on the

bottom and the other on the upper right-hand side.

(2) Disconnect the connector from the adapter case.
(3) Sliding the right side panel to the right, pull it out toward

you.

Terminal cover

Electrical box cover

Connector

Connector

Indoor controller
board

Right side panel

3. Removing the indoor controller board

(1) Remove the right side panel.
(2) Remove the screw of the electrical box cover, and remove

the cover.

(3) Disconnect the connectors on the indoor controller board.
(4) To unhook the catches on the right-hand side of the indoor

controller board, pull the left-hand side toward you and lift
up the cover to the right. Then the indoor controller board
can be removed.

4. Removing the electrical box

(1) Remove the right side panel.
(2) Remove the screw of the electrical box cover, and remove

the cover.

(3) Remove the room temperature thermistor and the pipe

temperature thermistor.

(4) Disconnect the vane motor connector on the indoor con-

troller board.

(5) Remove the 2 screws of the electrical box.
(6) Disconnect the connector of the heater lead wire connec-

tor.

(7) Disconnect the connector of the fan motor lead wire.
(8) Remove the electrical box.

Figure 1

Figure 2

Photo 1

Photo 2

Pipe temperature thermistor

Catches

Screws

Room temperature thermistor

Electrical box

Electrical  box
cover

Indoor controller
board

Indoor unit PK24FL3

OC275--2.qxp  01/12/14 3:07 PM  Page 35

Summary of Contents for PK18FL3

Page 1: ...OC275 6 6 OUTLINES AND DIMENSIONS OC275 13 7 REFRIGERANT SYSTEM DIAGRAM OC275 15 8 WIRING DIAGRAM OC275 16 9 OPERATION FLOW CHART OC275 17 10 MICROPROCESSOR CONTROL OC275 20 11 TROUBLESHOOTING OC275...

Page 2: ...TRANSFORMER to POWER BOARD 2 SW1 changed from function selector to mode selector 3 SW2 changed from unit selector to address selector 4 The number of switches of SW3 changed from 3 to 2 pieces 5 Func...

Page 3: ...back plate installation guide gives clear instructions on installation positions The enlarged back plate secures the unit firmly to the wall while the support piece which lifts the unit makes left si...

Page 4: ...RATURE button sets any desired room temperature CLOCK display Displays the current time display Displays the order of timer operation display Displays whether timer is on or off Buttons used to set th...

Page 5: ...0 11 0 12 23 28 53 33 1 2 154 55 1 8 34 1 4 11 5 8 PK24FL3 24 000 2 34 10 3 10 6 PK24FL3 15 1 0 7 710 530 640 480 7 2 48 41 1 1 16 53 PU24EK1 20 16 0 65 0 65 NH33NBD 11 5 54 0 16 0 17 33 39 55 207 Mun...

Page 6: ...23 4 23 2 22 1 21 7 33 7 31 4 29 2 29 0 27 7 27 1 38 4 35 7 33 3 33 1 31 5 30 9 85 SHC 14 3 15 8 17 2 15 4 15 0 14 4 15 8 18 1 20 0 17 6 17 1 16 6 20 8 23 6 25 8 22 9 22 3 21 5 22 1 25 3 28 1 24 8 24...

Page 7: ...5 Total capacity 10 3 Btu h Total power consumption kW Outdoor intake air DB temperature F indoor intake air WB temperature F indoor intake air WB temperature F SHF 0 82 Total capacity 10 3 Btu h Tota...

Page 8: ...50 60 70 80 90 100 110 Outdoor ambient temperature DB F DB F psi G Indoor DB temperature F Indoor DB temperature F Condensing pressure Suction pressure PK24FL3 Cooling mode PK24FL3 Outdoor ambient tem...

Page 9: ...door ambient temperature F PK30FL3 Suction pressure DB F 86 80 75 70 100 90 80 70 60 50 40 30 30 40 50 60 70 80 90 100 110 psi G Indoor DB temperature F Outdoor ambient temperature F Indoor DB tempera...

Page 10: ...00 0 82 1 75 PK18FL3 115 1 60 0 09 0 7 PU18EK1 208 230 1 60 1 66 12 0 0 75 255 82 171 118 51 25 80 67 61 59 1 300 710 95 75 790 1 590 PK24FL3 Cooling 24 000 0 72 2 34 PK24FL3 115 1 60 0 09 0 7 PU24EK1...

Page 11: ...ltage Min 103V Max 127V Min 198V Max 253V Function Cooling DB F 80 95 67 80 Condition Standard temperature Maximum temperature Minimum temperature Maximum humidity Indoor Intake air temperature Outdoo...

Page 12: ...Hi NOTCH Lo 49 SPL dB 44 LINE 7 NOISE CRITERION CURVES 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 2...

Page 13: ...ck out hole for piping 31 32 43 11 16 7 7 32 9 7 16 B 44 3 32 21 23 32 4 23 32 2 5 32 4 1 32 4 3 8 Air outlet 21 23 32 Air outlet Change vane manual Under panel Removable at left hand side piping Knoc...

Page 14: ...15 32 1 17 32 1 17 32 3 15 16 3 15 16 5 32 5 32 2 29 32 2 29 32 2 9 16 3 27 32 1 17 32 Lower side 2 1 Knock out hole for wiring 9 1 4 1 25 32 9 1 4 1 25 32 9 1 4 1 25 32 9 1 4 1 2 1 25 32 2 15 32 1 2...

Page 15: ...e temperature thermistor Liquid RT2 Pipe temperature thermistor Liquid RT2 Refrigerant pipe Option 5 8 with heat insulator Refrigerant pipe Option 3 8 with heat insulator Distributor Indoor heat excha...

Page 16: ...ration If remote controller or microcomputer fails but there is no other trouble emergency operation is possible by setting dip switch SW3 I B on the indoor controller board NOTES LED DC5V POWER X4 RE...

Page 17: ...door side Outdoor side Fan STOP Compressor OFF Fan STOP MAIN OPERATION w1 In addition the centralised control and remote control can be operated w2 The modes which indicate the sources of trouble are...

Page 18: ...mperature 30 F or lower YES NO 6 minute time delay 3 minute time delay Coil frost prevention release Allowance period 6 minute time delay Allowance set 1 min continue Coil frost protection FAN speed L...

Page 19: ...perature is below 43 F the fan speed changes to LOW mode It is not possible to set the fan speed with the remote controller DRY OPERATION DRY operation Initial dry operation Room temperature is 64 F o...

Page 20: ...e thermistor Indoor coil thermistor Independent Control of Outdoor Unit OUTPUT to indoor unit INPUT from indoor unit 12VDC Receives orders from remote controller and temperature data from indoor unit...

Page 21: ...controller setting MIN 3 minutes w1 Room temperature becomes equal to set temperature Room temperature rises above set temperature Operation stops by POWER button OFF How to operate 1 Press POWER ON...

Page 22: ...uously operated for 3 minutes or more and the indoor coil temperature has been 5 F or below for 3 minutes the coil frost protection will start Coil frost protection Compressor stops for 6 minutes and...

Page 23: ...e controller display Changes by pressing the AIR DISCHARGE button AUTO RETURN When discharge 60 or 70 continues for 1 hour with the fan speed at LOW the discharge direction turns to the horizontal dis...

Page 24: ...or 3 minutes If the room temperature thermistor reads 79 F to 83 F with thermostat 0N the compressor will operate for 4 more min utes and then stop for 3 minutes If the room temperature thermistor rea...

Page 25: ...he indoor fan will stop When the indoor coil temperature is below 43 F the indoor fan will run on LOW speed b During compressor ON The indoor fan runs on LOW speed Dry mode The fan notch is controlled...

Page 26: ...operate 1 Push POWER ON OFF button 2 Check if or not the current time is correct 3 Push the or button and select the desired time 4 Set the timer time using HR and MIN buttons 2 3 FAN operation 2 4 TI...

Page 27: ...L mode then check whether cool air is blown out from the unit 4 Press the button and check whether strong air is blown out from the unit 5 Press the button and check whether the auto vane operates pro...

Page 28: ...cy operation because the drain may overflow How to operate 1 For emergency cooling set the dip switch SW3 1 to ON and SW3 2 to OFF 2 Turn ON the outdoor unit breaker and then ON the indoor unit breake...

Page 29: ...ch for detecting abnormalities in the outdoor unit abnormality detection OFF When an abnormality occurs it is detected ON Even if an abnormality occurs it can not be detected SW1 8 Switch for auto res...

Page 30: ...nitial factory setting by is based on each capacity Model SW7 PK36FL3 1 2 3 ON OFF PK30FL3 1 2 3 ON OFF PK24FL3 1 2 3 ON OFF 7 SW8 Option SW8 1 2 Not for use SW8 3 4 Not for use SW8 5 Not for use SW8...

Page 31: ...operation from the status of remote controller display turned off blinks and Model No is lighted 3 Press the button twice continuously A Pair No 0 blinks 4 Press the temp button to set the pair number...

Page 32: ...he number of blinks of the operation lamp 4 Press the ON OFF button to stop the self check CHECK h CHECK ON OFF TEMP FAN VANE MODE CHECK LOUVER TEST RUN AUTO STOP AUTO START h min RESET SET CLOCK 4 A...

Page 33: ...utdoor connecting wire 2 Change the connection of electric wiring 3 Check the protection device 4 Measure the resistance of the outdoor coil ther mistor If the resistance is normal replace the outdoor...

Page 34: ...e using a tester Surrounding temperature 50 F to 86 F Measure the resistance between the terminals using a tester Opening and closing temperature of protector Open 266i41 F Fan motor OFF Close 176i68...

Page 35: ...box cover and remove the cover 3 Disconnect the connectors on the indoor controller board 4 To unhook the catches on the right hand side of the indoor controller board pull the left hand side toward y...

Page 36: ...panel from the catch on the unit 2 Slide the left side panel to the left to remove the panel Note Fix the unit to the metal fixture securely 3 Remove the air filters 4 Hold and press the center cover...

Page 37: ...supports and remove the motor supports and the fan motor See Photo 9 8 Remove the 2 screws on the left and right sides of the heat exchanger and pull the bearing support toward you See Photo 11 9 Rem...

Page 38: ...ARING BEARING MOUNT LINE FLOW FAN L LINE FLOW FAN L HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER DRAIN PAN DRAIN PAN JOINT SHAFT 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R01 005 103 R01 Z61 102...

Page 39: ...1 2 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 2 MV RT1 RT2 TB4 TB2 C I B F1 2 I B P B MF MF W R 2P 1 2...

Page 40: ...OP PLATE DRAIN SOCKET 1 1 1 4 1 1 1 2 1 1 1 1 1 1 4 1 1 1 2 1 1 1 1 1 1 5 1 1 1 2 1 1 1 1 1 1 1 5 1 1 1 2 1 1 1 1 R01 12G 662 R01 E01 812 R01 E00 812 R01 E00 811 R01 E01 811 R01 A17 500 R01 50J 317 R0...

Page 41: ...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...

Page 42: ...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...

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