TECHNICAL DATA & SERVICE MANUAL SPLIT - Termo
Contents
1. 1st COMP start OR deice complets Reset TLD cntto 0 DTF 0 IFAN OF AN speed change Reset SCT cntto 0 DTF 0 DDT OCT TempD DTF 1 DDT and DTF information to main algorithm ee Explanation The Ice Forming Detection will be done by two algorithms a In Dynamic Temp Detection the ice formation will be detected by i Compare the OCT with a Deicing Dynamic Temperature Threshold and ii Detect the drop in ICT which accompany the ice formation b The Static Temp Detection will be done by comparing the OCT with a Deicing Static Temperature Threshold The Deicing Data Record is used to determine the time delay between two deicing cycles In general the time delay will be increased if the last deicing cycle can be completed quickly 20 2 Indoor Coil High Pressure Protection in Heat Mode The in coil high pressure protection prevents the build up of high pressure at the in coil during heating operation ICT c 66 wee tere we we ee mm l l 61 wee we www weet eee oe wee we ee ee eee ee l I l l l j i 55 de mes ee mees mmm eene eem ee e Fass l l j i 52 WEE Kee i EE ZE I l I I l l I l l l l l l I ANY l I COMP S l l COMP is forced OFF OFF l l I I l l 1 l i l ANY l OFAN OFAN is forced OFF OFF 21 4 8 Sleep Function Room temperature is automatically controlled to compensate for body temperature variations while sleeping This mode of operation2. 5 1 4 Check lead wires and connectors in indoor and outdoor units Check that coating of lead wires is not damaged Check that lead wires and connectors are firmly connected Check that wiring is correct 5 2 Air conditioner does not operate 5 2 1 Circuit breaker trips or fuse blows A When the circuit breaker is set to ON it trips immediately Resetting is not possible There is a possibility of ground fault Check insulation resistance If resistance value is 2MQ or less insulation is defective NO L Set circuit breaker to OFF Remove inter unit wires from 8 P A NO Insulation of terminal plate in outdoor unit gt gutdoor nit e Measure insulation resistance is defective of outdoor unit Measure insulation resistance of electrical parts in outdoor unit Remove inter unit wires from terminal plate in indoor unit NO Insulation of Then pull the power plug out of gt indoor unit the wall outlet is defective e Measure insulation resistance 23 of indoor unit Measure insulation resistance of electrical parts in indoor unit B Circuit breaker trips in several minutes after turning the air conditioner on There is a possibility of short circuit e Check capacity of circuit breaker Capacity of circuit breaker is suitable e Measure resistance of outdoor fan motor winding e Measure resistance of compressor motor wi
3. T T T T C H Oo gt Re jaa CG gt Ooze thea Z SE aoa 8 7 6 5 4 3 2 2 615 8 7 3 615 gt NV e Z a 12 4 FUNCTION 4 1 Cool Mode Operation RT SPT c over 3 min over 3 min Se l ON 4 coMP fore pais dE PA T ae l i ON ieee I OFAN fore NOP Loe 1 over 30 sec H Gs ke M IFAN L ON RV forF In Cool Mode the operation of the Compressor COMP Outdoor Fan OFAN and Indoor Fan IFAN are determined by the difference between the Room Temperature RT and the Set Point Temperature SPT as in the graph above Notes a In this graph the IFAN is operating in the Auto Fan Speed setting If the user has selected the low medium or high fan speed the IFAN will run constantly at that speed only b In addition to the value of RT SPT the operations of the relays are also controlled by protection delays For example a the minimum On Off time of the COMP is 3 min and 3 min respectively and b the IFAN can change speed only after it has operated at the same speed for 30 sec in autofan setting and 1 sec for H M L setting 13 4 2 Heat Mode Operation RT SPT c e mm vm ee ee ee mm mm en zm ee fe ee mm COMP IFAN Note 1 Nota 2 The Heat Mode operation is similar to the Cool Mode operation The COMP OFAN and IFAN are mainly controlled by the value of RT SPT Inthe graph above
4. 6 3 Checking Motor Capacitor 1 SPECIFICATIONS 1 1 Unit Specifications KPAF124R5 220 240 V 50 Hz Voltage rating 230 V Performance Capacity See catalogue with the requested matching Air circulation m h 700 Controls Temperature controls Microprocessor C thermostat Control unit Wireless remote control unit Timer ON OFF 24 hours Fan speed 3 and Auto Airflow direction Horizontal Manual Vertical Auto Air Filter Washable Anti Mold Power noise level High 55 Refrigerant tubing connections Flare type Refrigerant Narrow tube in 6 35 1 4 tube diameter Wide tube in 9 52 3 8 Refrigerant R410A Refrigerant tube kit Air clean filter Optional Optional Dimensions amp Weig Unit dimensions Height Width Depth Package dimensions Height Width Depth Weight Net Shipping Shipping volume DATA SUBJECT TO CHANGE WITHOUT NOTICE KPAF185R5 220 240 V 50 Hz Voltage rating 230 V Performance Capacity See catalogue with the requested matching Air circulation m h 800 Controls Temperature controls Microprocessor C thermostat Control unit Wireless remote control unit Timer ON OFF 24 hours Fan speed 3 and Auto Airflow direction Horizontal Manual Vertical Auto Air Filter Washable Anti Mold Power noise level High 59 Refrigerant tubing connections Flare type Refrigerant Narrow tube in 6 35 1 4 tube diameter Wide tube in 12 7 1 2 Refrigeran
5. is designed for maximal comfort in both COOL and HEAT modes RT Unit is turned to SB Sleep operation put e 7 12 Hours Sleep operation after Sleep SPT 3 Leen r SPT 2 Lan SPT 1 SPT SPT 1 SPT 2 EES SPT 3 E EE EE Start 1 2 3 4 7 12 Time Hr Sleep 4 9 Daily Timer Function There are 2 independent timers ON Timer and OFF Timer Unit can be programmed to be ON and OFF automatically at preset time everyday by using a remote controller The resolutions of the ON OFF timers are 10 min 4 10 IFEEL Function There are 2 independent timers ON Timer and OFF Timer Unit can be programmed to be ON and OFF automatically at preset time everyday by using a remote controller The resolutions of the ON OFF timers are 10 min 22 5 TROUBLESHOOTING 5 1 Check before and after troubleshooting AN WARNING Hazardous voltage can cause ELECTRIC SHOCK or DEATH Disconnect power or turn off circuit breaker before you start checking or servicing 5 1 1 Check power supply wiring Check that power supply wires are correctly connected to terminals L and N on the terminal plate in the indoor unit 5 1 2 Check inter unit wiring Check that inter unit wiring is correctly connected to the outdoor unit from the indoor unit 5 1 3 Check power supply Check that voltage is in specified range 10 of the rating Check that power is being supplied
6. the IFAN is operating in Auto Fan speed mode Therefore the IFAN speed changes automatically according to the RT SPT Note 1 The 30s IFAN operation is for purging the heat from the in coil after COMP has stopped Note 2 The IFAN will not be turned on until the in coil temperature is high enough as shown in the graph below to prevent the unit from supplying cool air IFAN Speed ICT In coil Temperature Any Hi Med or Low fan speed whichis selected by the user In Auto Fan Speed Mode the fan speed is selected by the unit automatically instead a 5 a ICT fre Low The indoor fan is forced to operate atlow speed 14 4 3 Auto Cool Heat Mode Operation RT SPT c COMP amp OFAN OFF RV OFF Auto Heat Mode Auto Cool Mode Auto Heat Mode In Auto Mode the unit switches between the Auto Cooling Mode and Auto Heating Mode automatically to maintain the room temperature RT at the set point temperature SPT 15 4 4 Dry Mode Operation RT SPT c 2 1 50 Time min DRY Jorv orr LOW IFAN ort 5 minutes COMP ON time ON i i i i COMP amp OFAN OFF l i Max 15 minutes 3 5 min i Max 15 minutas emn Note 1 Se wt Nde 2 In Dry Mode the unit operates in a mild cool mode to lower the humidity of the room In order to maintain a high efficiency in the drying operation without over lowering the room temperature e
7. 1596 1 No of poles rpm 230 V High 4 1160 Nominal output 21 Running Amps 0 29 Power input 65 Coil resistance Ambient temp 25 C GRY WHT 298 343 WHT PNK 421 485 WHT VLT 93 5 108 VLT ORG 93 5 108 ORG YEL 211 243 Safety devices Type Thermal protection Operating temp Open 145 5 Automatic Run capacitor Flap Motor Type Synchro motor Model M2LJ247E31 Rating AC 208 230 V 50 60 Hz No of poles rpm 8 2 5 3 Nominal output 2 973 Coil resistance Ambient temp 25 C Heat Exch Coil Coil 16 45 15 Aluminium plate fin Copper tube Rows 2 Fin pitch 1 8 Face area 0 192 DATA SUBJECT TO CHANGE WITHOUT NOTICE KPAF185R5 Controller PCB Part No KSA Controls Microprocessor Control circuit fuse 250V 5A Remote Control Unit Fan amp Fan Motor RC 7 RC Cross flow Dia and lenght 2 130 L 180 Fan motor model Q ty K48407 M01597 1 No of poles rpm 230 V High 4 1140 Nominal output 27 Running Amps 0 33 Power input 75 Coil resistance Ambient temp 25 C GRY WHT 194 223 WHT VLT 80 1 92 2 VLT ORG 80 1 92 2 ORG YEL 200 230 WHT PNK 238 274 Safety devices Type Thermal protection Operating temp Open 14545 Automatic Run capacitor Flap Motor T
8. Ass y is defective E Check TIMER on the remote conirol unit e Timer is turned ON YES Measure resistance of compressor motor winding CM es Measure resistance of 4 way valve s windings OK Replace the fuse 25 gt Cancel the timer mode 5 2 3 Only outdoor unit does not run A Check setting temperature COOL Is room temperature too low Try to lower setting temperature by temperature setting button button Outdoor unit still does not run e Try to run using another remote control unit OK Remote control unit is defective 5 2 4 Only Indoor unit does not run e Indoor PCB Ass y is defective 26 HEAT Is room temperature too high K Try to raise setting temperature by temperature setting button button Outdoor unit still does not run e Try to run using another remote control unit OK Remote control unit is defective 5 3 Some part of air conditioner does not operate 5 3 1 Only indoor fan does not run Fan cannot e Check fan rotation be turned Turn fan gently once or twice by hand e Measure resistance of indoor fan motor winding e Check fan motor capacitor oK 5 3 2 Only outdoor fan does not run Fan cannot e Check fan rotation be turned Turn fan gently once or twice by hand e Measure resistanc
9. TECHNICAL DATA Kach Technibel amp SERVICE MANUAL Keier gege INDOOR UNIT KPAF124R5 KPAF185R5 KPAF225R5 SPLIT SYSTEM AIR CONDITIONER KPAF124R5 387105949 KPAF185R5 387005960 KPAF225R5 387005961 Floor Mounted Ceiling Mounted 0 8180 417 0 06 2005 IMPORTANT Please read before installation This air conditioning system meets strict safety and operating standards For the installer or service person it is important to install or service the system so that it operates safely and efficiently For safe installation and trouble free operation you must e Carefully read this instruction booklet before beginning Follow each installation or repair step exactly as shown Observe all local state and national electrical codes e Pay close attention to all warning and caution notices given in this manual The unit must be supplied with a dedicated electrical line AN rem This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death Ar CAUTION This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage If necessary get help These instructions are all you need for most installation sites and maintenance conditions If you require help for a special problem contact our sale service outlet or your certified dealer for additional instructions In case of improper installation The manufac
10. e of outdoor fan motor winding Check fan motor capacitor 27 e Check fan casing foreign matter on inside Remove foreign matter or repair Fan motor burnout or foreign matter in bearings Repair or replace PCB assy is defective Check fan casing foreign matter on inside Remove foreign matter or repair Fan motor burnout or foreign matter in bearings Repair or replace 5 3 3 Only compressor does not run Check compressor motor capacitor C1 Measure resistance of compressor motor winding Measure power supply voltage The voltage is too low Overload relay is working either OLR T or OLR A Temperature of compressor is abnormally high Refrigerant gas shortage Charge refrigerant gas Rotor may be locked up 5 3 4 Compressor and outdoor fan do not run Float switch turned ON Check if drain pump runs normaly Verify if drain condensate tube is obstructed Remove obstruction Replace the drain pump 28 5 4 Air conditioner operates but abnormalities are observed 5 4 1 Operation does not switch from HEAT to COOL or COOL to HEAT Remote control unit may be defective Receiver in lamp ass y may be defective Measure resistance of 4 way valve s winding COOL to HEAT Check voltage between Outdoor PCB ass y is defective terminals N and 6 230V AC No voltage appears Indoor PCB ass y is d
11. efective HEAT to COOL Check voltage between terminals N and 6 230V AC 5 4 2 Poor cooling or heating e Check position of remote control unit YES e Cool or warm air from air conditioner reaches position directlv only with FEEL feature selected e Wide and narrow tubes between indoor unit and outdoor unit are Change position of remote control unit insulated YES Temperature difference e Measure temperature of suction and is small discharge air of air conditioner Temperature difference between suction and discharge air is large enough approx 10 deg or more Insulate both wide and narrow tubes separately and then tape together Possibility of Charge refrigerant gas shortage gas Check for clogging of air filter Air filter is clogged gt Clean filter Set fan speed to either YES e Fan speed is set to LOW e Review cooling load estimate HIGH or MEDIUM if performance of air conditioner is normal 5 4 3 Excessive cooling or heating Reduce cooling or heating load or replace the air conditioner with larger capacity NO e Set temperature is suitable e Remote control unit is placed where Set temperature to higher or lower value using temperature setting buttons of the remote control unit it can detect room temperature prop
12. erly 30 Change position of remote control unit 6 5 If a sensor is defective 6 5 1 ICT indoor coil sensor OCT outdoor coil sensor RAT room ambient temperature are defective e Stand by lamp on front side of indoor YES e Thermistor ICT and OCT and RAT are unit is flashing on and off defective e Repalce thermistor K Allarm signal Stan by lampoon on the front side of the indoor unit will flash on and off when the thermistor is defective At the same time the outdoor unit will stop Indoor operate only for ventilation Temperature sensor Lead wires 31 6 CHECKING ELECTRICAL COMPONENTS power plug Local supply 6 1 Measurement of Insulation Resistance The insulation is in good condition if the resistance exceeds 2MQ 6 1 1 Power supply wires Clamp the grounding terminal of the power plug with a lead clip of the insulation resistance tester and measure the resistance by placing a probe on both the two power terminals fig 1 Then also measure the resistance between the grounding and other power terminals fig 1 6 1 2 Indoor Unit Clamp a metallic part of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw where power supply lines are connected on the terminal plate fig 2 6 1 3 Outdoor Unit Clamp an aluminium plate fin or copper tube with the lead clip of the insulati
13. nding 15 2 2 Neither indoor nor outdoor unit runs A Power is not supplied e Check power supply Power is being supplied to the indoor unit Replace with suitable gt one larger capacity In case of Heating operation e Measure resistance of 4 way valve s winding Circuit breaker is tripped Power failure B Check POBRABUN DONS ehtomidewitahiin the indoor unit Press the PUSH BUTTON switch Neither the indoor nor the outdoor units run 24 Reset breaker Wait for recovery or contact power company Indoor PCB Ass y is defective C Check remote conirol unit e Try to run with another remote control unit First remote control unit is defective e Check for residue buildup on gt Clean transmitter transmitter of remote control unit e Check for residue buildup on remote control receiver on front of indoor gt Clean receiver unit D Check fuse on the indoor PCB Ass y Check fuse on indoor PCB Ass y If fuse has been blown Measure resistance of indoor and for continuity F01 gt outdoor fan motor winding K FM Check operation lamp to see if light is ON Light is OFF e Measure resistance of primary and secondary winding of transformer TR ok e Indoor PCB
14. nent Specifications Thermistor Coil sensor TH1 Resistance KQ 10 3 Thermistor Room sensor TH2 Resistance KO 10 5 10 2 DIMENSIONAL DATA Unit mm Center of tubing hole 74 75 4 places Wide tube Narrow tube Drain hose 26 3 ELECTRICAL DATA 3 1 Electric Wiring Diagrams KPAF124R5 3R TEL U l i WHT xx xx x x CH gt 3LU dad ao gg SS p E gt T T LI GRN Y GRN YEI Pe CS 2 2 S l WHT S RM PS IN PS OUT P7 c N N z SE CH out Pump 1 1 m BLK A gt Fe 3 3 WHT SE LeveL III I F P19 O DISPLAY P1 P4 lala TEE 5 4 3 2 1 1 to 16 S 4 3 2 1 12 71 6 5 4 3 2 T T CI fn ED S _41 e i a Wb SC ER nl en Z x 8171615 4 2 31211 6 5 2 8171613514 Ch 3 2 1 1541312 gt ND C SSY E 3R BLI Z a GRN FS gs LC RE E O ic WH 5 D O R V Tp JS _J3 JS Ji out pump 1 1 F BLK a A 3 3H wHT IR J2 JB J4 J7 5 4 3 2 1 1 to 16 SECRET LEE
15. on of the pointer setting the resistance measuring range of the multimeter to the maximum value Multimeter The capacitor is good if the pointer bounces to a great extent and then gradually returns to its original position The range of deflection and deflection time differ according to the capacity of the capacitor Si Compressor motor capacitor Fan motor capacitor Fig 7 33 all R D 28 Reyrieux BP 131 01601 Tr voux CEDEX France T l 04 74 00 92 92 Fax 04 74 00 42 00 R C S Bourg en Bresse B 759 200 728
16. on resistance tester and measure the resistance by placing a probe on each terminal screw on the terminal plate fig 2 Note that the ground line terminal should be skipped for the check 6 1 4 Measurement of Insulation Resistance for Electrical Parts Disconnect the lead wires of the desired electric part from terminal plate capacitor etc Similary disconnect the connector Then measure the insulation resistance fig 3 and 4 NOTE Refer to electric wiring diagram If the probe cannot enter the poles because the hole is too narrow then use a probe with a thinner pin 32 Insulation tester NOTE The shape of the power plug may differ from that of the air conditioner which you are servicing Fig 1 Terminal plate es Clip M a Copper tube or metallic part Fig 2 Copper tube or metallic part Insulation tester Fig 3 From fan motor compressor and other parts Metallic part Clip Insulation tester R Fig 4 6 2 Checking Continuity of Fuse on PCB Ass y Fuse Remove the PCB Ass y from the electrical component box Then pull out the fuse from the PCB Ass y fig 5 PCB Ass y Check for continuity using a multimeter as shown in fig 6 S Fig 5 Fuse Fig 6 6 3 Checking Motor Capacitor Remove the lead wires from the capacitor terminals and then place a probe on the capacitor terminals as shown in fig 7 Observe the deflecti
17. pecified as narrow tube for liquid wide tube for gas When servicing e Turn the power OFF at the main power board before opening the unit to check or repair electrical parts and wiring e Keep your fingers and clothing away from any moving parts e Clean up the site after the work remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced Ventilate the room during the installation or testng the refrigeration system make sure that after the installation no gas leaks are present because this could produce toxic gas and dangerous if in contact with flames or heat sources Table of Contents 1 SPECIFICATIONS 1 1 Unit specifications 1 2 Major Component specifications 1 3 Other Component specifications 2 DIMENSIONAL DATA 3 ELECTRICAL DATA 3 1 Electric Wiring Diagrams 4 FUNCTION 4 1 Cool Mode Operation 4 2 Heat Mode Operation 4 3 Auto Mode Operation 4 4 Dry Mode Operation 4 5 Fan Mode Operation 4 6 Protections in Cool Dry Mode 4 7 Protections in Heat Mode 4 8 Sleep Function 4 9 Daily Timer 4 10 FEEL Function 5 TROUBLESHOOTING 5 1 Check before and after troubleshooting 5 2 Air conditioner does not operate 5 3 Some part of air conditioner does not operate 5 4 Air conditioner operates but abnormalities are observed 5 5 If a sensor is defective 6 CHECKING ELECTRICAL COMPONENTS 6 1 Measurement of Insulation Resistance 6 2 Checking Continuity of Fuse on PCB Ass y
18. t R410A Refrigerant tube kit Air clean filter Optional Optional Dimensions amp Weig Unit dimensions Height Width Depth Package dimensions Height Width Depth Weight Net Shipping Shipping volume DATA SUBJECT TO CHANGE WITHOUT NOTICE KPAF225R5 220 240 V 50 Hz Voltage rating 230 V Performance Capacity See catalogue with the requested matching Air circulation m h 800 Controls Temperature controls Microprocessor C thermostat Control unit Wireless remote control unit Timer ON OFF 24 hours Fan speed 3 and Auto Airflow direction Horizontal Manual Vertical Auto Air Filter Washable Anti Mold Power noise level High 60 Refrigerant tubing connections Flare type Refrigerant Narrow tube in 9 52 3 8 tube diameter Wide tube in 15 88 5 8 Refrigerant R410A Refrigerant tube kit Air clean filter Optional Optional Dimensions amp Weig Unit dimensions Height Width Depth Package dimensions Height Width Depth Weight Net Shipping Shipping volume DATA SUBJECT TO CHANGE WITHOUT NOTICE 1 2 Major Component Specifications KPAF124R5 Controller PCB Part No KSA Controls Microprocessor Control circuit fuse 250V 5A Remote Control Unit Fan amp Fan Motor RC 2 RC RC 7 RC Cross flow Dia and lenght 2 130 L 180 Fan motor model Q ty K48407 M0
19. to reduce strain on your back Sharp edges or thin aluminium fins on the air conditioner can cut your fingers When installing In a ceiling or wall Make sure the ceiling wall is strong enough to hold the unit weight It may be necessary to build a strong wooden or metal frame to provide added support Inaroom Properly insulate any tubing run inside a room to prevent sweating which can cause dripping and water damage to walls and floors In moist or uneven locations Use a raised concrete base to provide a solid level foundation for the outdoor unit This prevents damage and abnormal vibrations In area with strong winds Securely anchor the outdoor unit down with bolts and a metal frame Provide a suitable air baffle In a snowy area for heat pump type systems Install the outdoor unit on a raised platform that is higher than drifting snow Provide snow vents When connecting refrigerant tubing e Keep all tubing runs as short as possible e Use the flare method for connecting tubing e Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them screw by hand and then tighten the nut with a torque wrench for a leak free connection e Check carefully for leaks before starting the test run NOTE Depending on the system type liquid and gas lines may be either narrow or wide Therefore to avoid confusion the refrigerant tubing for your particular model is s
20. turer shall in no way be responsible for improper installation or maintenance service including failure to follow the instructions in this document SPECIAL PRECAUTIONS e During installation connect before the refrigerant system and then the wiring one proceed in the reverse orden when removing the units MES wren wiring ELECTRICAL SHOCK CAN CAUSE SEVERE Ka PERSONAL INJURY OR DEATH ONLY A QUALIFIED EXPERIENCED ELECTRICIANS SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked to ensure the grounding e Highly dangerous electrical voltages are used in this system Carefully refer to the wiring diagram and these instructions when wiring Improper connections and inadequate grounding can cause accidental injury and death e Ground the unit following local electrical codes e The Yellow Green wire cannot be used for any connection different from the ground connection Connect all wiring tightly Loose wiring may cause overheating at connection points and a possible fire hazard e Do not allow wiring to touch the refrigerant tubing compressor or any moving parts of the fan e Do not use multi core cable when wiring the power supply and control lines Use separate cables for each type of line When transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting
21. uring cooling operation OCT c 61 ms 55 COMP OFAN IF AN OPER LED Note 1 In some applications the outdoor fan and the compressor are controlled together by the COMP relay output from the controller In this case it will take more time for the out coil to cool down during the high pressure protection because the outdoor fan will be turned off with the compressor instead of working as in the graph above 18 4 7 Protection Operations in Heat Mode 1 Outdoor Coil Deice Protection The deice process is controlled by an Ice Detection Algorithm IDA The IDA is a unique control algorithm incorporated to maintain optimal utilization of the heat pump capacity especially in below zero outdoor temperature condition The out coil deicing will be activated not only by static temperature detection as normally done but also while ice forming is detected on the out coil COMP to ON DI 40 or 10 DT 5 Activate D I setting Routine Start counting TLD OTF ODT ami OTF information from Deteing Dynamic Threshold sating ro ne OTF 1 TLO DI A OCT DDT during last 3 minutes D D OCT DST during last 3 minutes BR Dake actvation reg Notes LOT OT TimeD 19 The following routine runs continuously while A C is working in Heat Mode The routine outputs Deicing Dynamic Threshold DDT and Deicer Threshold Flag DTF to the main Deicer routine
22. xcessively the Dry Mode is different from the Cool Mode in two ways a The IFAN is forced to operate at low speed only And the IFAN is turned off with the COMP b The unit operates in either the Dry on state or the Dry off state If RT SPT the unit will operate in Dry off state After the COMP has stopped working for 15 min it is forced to operate for 6 min If RT gt SPT the unit will operate in Dry on state After the COMP has been working for 15 min it is forced off for 3 5 min Note 1 COMP is forced off in Dry on state Note 2 COMP is forced to operate in Dry off state 16 4 5 Fan Mode Operation In Fan Mode the indoor fan is tumed on to improve the air circulation in the room COMP and OFAN remain OFF all the time Note If the user has selected the Auto Fan Speed setting the IFAN speed would be selected by the unit automatically according to the difference between RT and SPT as in Cool Mode 4 6 Protection operations in Cool and Dry Mode 1 Indoor Coil Defrost Protection The in coil defrost protection can prevent the ice formation at the in coil when the ambient temperature is low ICT c 1 5 min minimum for each COMP starting t2 OFAN cycling alternate between ON and OFF every 30 sec for 20 min maximum t3 COMP and OFAN stop for 10 min 17 2 Outdoor Coil High Pressure Protection The out coil high pressure protection prevent the build up of high pressure at the out coil d
23. ype 2 440 Synchro motor Model M2LJ24ZE31 Rating AC 208 230 V 50 60 Hz No of poles rpm 8 2 5 3 Nominal output 2 973 Coil resistance Ambient temp 25 C Heat Exch Coil Coil 16 45 15 Aluminium plate fin Copper tube Rows 2 Fin pitch 1 8 Face area 0 192 DATA SUBJECT TO CHANGE WITHOUT NOTICE KPAF225R5 Controller PCB Part No KSA Controls Microprocessor Control circuit fuse 250V 5A Remote Control Unit Fan amp Fan Motor RC 7 RC Cross flow Dia and lenght 2 130 L 180 Fan motor model Q ty K48407 M01598 1 No of poles rpm 230 V High 4 1280 Nominal output 41 Running Amps 0 41 Power input 88 Coil resistance Ambient temp 25 C GRY WHT 124 144 WHT VLT 69 3 79 8 VLT ORG 69 3 79 8 ORG YEL 200 233 WHT PNK 255 294 Safety devices Type Thermal protection Operating temp Open 14545 Automatic Run capacitor Flap Motor Type Synchro motor Model M2LJ24ZE31 Rating AC 208 230 V 50 60 Hz No of poles rpm 8 2 5 3 Nominal output 2 973 Coil resistance Ambient temp 25 C Heat Exch Coil Coil 16 45 15 Aluminium plate fin Copper tube Rows 2 Fin pitch 1 8 Face area 0 192 DATA SUBJECT TO CHANGE WITHOUT NOTICE 1 3 Other Compo
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