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Sanyo KH2442 User's Manual

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1. Performance Charts Cooling Characteristics 1 Operating Current Indoor Unit XH2442 Outdoor Unit CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5095 Indoor fan speed High 230V 208V Outdoor fan speed Outdoor fan speed Low High Low High 15 T Indoor temp temp 14 F C 14 F C lt 13 E 0 13 See E BEN 5 12 A 75 24 12 pi ett 8 Ze 7 70 2 8 222 4 o 11 TT 11 4 lt T LL A gt A S 10 Z S 10 Wr ad g g F1 P 8 i 8 59 68 77 86 95 104 59 68 77 86 95 104 15 20 25 30 35 40 15 20 25 30 35 40 Outdoor ambient temp F C Outdoor ambient temp F C 2183 X S 2184 X S Indoor Unit XH3642 Outdoor Unit CH3642 230V 208V Outdoor fan speed Indoor Outdoor fan speed Indoor Low High temp Low High temp M F C 19 M is 17 85 30 17 e Le 80 27 75 24 B 16 p t 70 21 p 5 x 5 SH LA CG Su SEET 8 13 12 12 i 59 6
2. N Outdoor ambient temp F C Low Pressure 1 75 2 EA Indoor temp F C _ 85 30 80 27 4 7 70 21 1161 X S Low pressure characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 50 Indoor fan speed High 230V 208V Outdoor fan speed Low High 100 Indoor temp 8 90 F C o 80 2 70 85 30 80 27 s 60 75 24 5 50 70 21 a 40 59 68 77 86 95 104 15 20 25 30 35 40 Outdoor ambient temp F C 84 1162 X S SM830082 1 Specifications 1 9 Performance Charts Cooling Characteristics 2 Operating Pressure D Indoor Unit 36 Type Outdoor Unit CH3642 e High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5096 Indoor fan speed High 230V 208V Outdoor fan speed Low High 320 Indoor temp 300 F C I 5 280 _ 85 30 o 260 24 80 27 a 240 75 24 9 I 7 70 21 amp 220 2 gt 222 S 200 8 Z 180 25 160 140 59 68 77 86 95 104 15 20 25 30 35 40
3. nnn o LSW Room Thermistor Indoor Coil E1 TIH2 Indoor Coil E2 NO TH3 Indoor Coil d TH4 3 Description Description Indoor Fan Motor Thermistor Indoor Coil E1 Indoor Motor Thermal Protector Thermistor Indoor Coil E2 Running Capacitor Thermistor Indoor Coil E3 Fuse Indoor Controller Auto Louver Motor Remote Control Unit Power Transformer Optional Parts Auxiliary Relay Room Thermistor Auxiliary Relay Terminal Plate Motor Operated Valve Connector Float Switch Terminal Limit Switch Room Thermistor 854 2 5268 923 00 1 T SM830082 III 5 3 Electrical data UH2442 UH3642 Concealed Duct Type EYE 1 00 076 8929 2 798 W naa ce ZH1 H2 1 5 Ong 93 23 due NY LHM naa woog OEL i e ojo 10 g e oi LHM d6 Jejoeuuoo RT LHM
4. Cooling Rating conditions Room temperature 80 F DB 67 F WB Ambient temperature 95 F DB 75 F WB Heating Rating conditions Room temperature 70 F DB 60 F WB Ambient temperature 47 F DB 43 F WB Low temp conditions Room temperature 70 F DB 60 F WB Ambient temperature 17 F 15 F WB SM830082 1 1 Unit Specifications MODEL No Indoor Unit 1 Specifications POWER SOURCE Outdoor Unit UH2442 CH2442 230 208 V 1 Phase 60 Hz PERFORMANCE Cooling Heating Capacity BTU h 24 000 23 400 27 000 16 200 26 500 15 500 Moisture removal High Pints h 8 4 7 7 Air circulation H M L cu ft min 670 530 460 External Static Pressure in Aq Pa at shipment 0 4 100 using jumper cable S E E R H S PF BTU Wh 10 0 7 0 7 0 ELECTRICAL RATINGS Voltage rating VAC 208 230 208 Available voltage range 187 253 Running amperes 12 1 12 0 12 5 Power input 2 480 2 650 2 080 2 550 1 960 Maximum overcurrent protection 25 FEATURES Controls Microprocessor Low ambient control Built in O F Fan speeds Indoor Outdoor 3 and Automatic control 3 Auto Optional Wired Remote Controller Timer RCS SH80UG 72 hour ON OFF Optional Wireless Remote Controll
5. l 38 Ceiling Mounted nnee eveneens 40 Conc aled Duct TIPS seen 42 Wal Mo mted Ty sa u E m 45 B Outdoor U itS u T a a aaa 47 1 Flow DISCE 49 1 6 Operating RANGE uu u Qa a een 1 50 1 7 CERN CARA EU m S l 51 1 8 Heating Capacity ee Ee l 71 1 9 auge u TI o oT 72 1 Operating E 72 2 Operating RE 84 1 10 Noise EEGENEN l 90 1 11 Increasing the Fan Speed l 95 Mole nee sasa aa d ana dendi 96 1 13 Installation WSU UNS uuu 99 Tubing EL UE 99 SELECTING THE INSTALLATION SITE ecu 100 ELECTRICAL WIRING E 1 104 Electrical characteristics nrs tenten eene 108 SM830082 1 1 Unit Specifications MODEL No Indoor Unit 1 Specifications POWER SOURCE Outdoor Unit XH2442 CH2442 230 208 V 1 Phase 60 Hz PERFORMANCE Cooling Heating Capacity BTU h 23 400 25 000 16 400 24 300 15 800 Moisture removal High Pints h 8 4 Air circulation H M L cu ft min 710 530 450 S E E R H S PF BTU Wh 10 2 7 0 7 0 ELECTRICAL RATINGS Voltage rating VAC 208 230 Available voltage ran
6. Il 16 2 15 Compressor Current Detection Circuit Il 17 2 16 Electronic Refrigerant Control Valve Control Il 18 2 17 Voltage Detection Il 19 SM830082 Il 1 2 Processes and functions 2 1 Room Temperature Control The Unit adjusts room temperature by turning the outdoor unit s compressor ON and OFF This process is controlled by the thermostat located in the remote control unit The figures on this and the next pages show how each part of the system performs when the room temperature changes and the thermostat activates the compressor to start thermo ON or stop thermo OFF Fig 1 shows about the cooling cycle and Fig 2 shows about the heating cycle A Coolin A 9 THERMO OFF THERMO OFF ROOM TEMP THERMO ON THERMO ON BODY SENSOR T 2 F SET TEMP jpeg cocco p ne seinen usss s s T 2 F MORE THAN MORE THAN MORE THAN 5 MINUTES 3 MINUTES 5 MINUTES 3 MINUTES 5 MINUTES gt lt gt lt gt lt gt lt COMPRESSOR ON OFF ON OFF ON 1 OUTDOOR FAN ON OFF ON OFF ON H OR M INDOOR FAN SET SPEED 1 Refer to 2 4 Outdoor Fan Speed Control 1133 mei Fig 1 Chart Summary and Explanations Once the compressor starts it keeps running for 5 minutes Once the compressor stop
7. Symbols Description Symbols Description FMI Indoor Fan Motor CR Indoor Controller 49FI Indoor Motor Thermal Protector RCU Remote Control Unit Running Capacitor Optional Parts Fuse H Room Thermistor Auto Louver Motor Terminal Plate Power Transformer Connector Auxiliary Relay Terminal Auxiliary Relay Motor Operated Valve Room Thermistor Thermistor Indoor Coil E1 Thermistor Indoor Coil E2 Thermistor Indoor Coil E3 S 854 2 5268 936 00 0 KH3642 SM830082 IIl 11 3 Electrical data 3 2 Outdoor Units D CH2442 6 0 00 9576 8925 2 798 M e LIA s L NH8 LHW 10 98UUO0D LHM LHW e D o AWD 4 o NH84 ANd 7 T3A4 13A X184 P AWD LHM 4 to to LHM SIE 10 99UUOD ELE EES SEI AvLOW BB A0EzZOV AYD DHO HdE9 502 225 LHM d lt 13A d LHM d6 Ona de LHM dE 2 nyo seo EG jeuiuue T3A NHO THA NHO qaad m Bueuosiq 1 llonuoo de jeuiuue en EN wejbeig vun OL
8. Il 18 2 17 Voltage Detection Control II 19 ELECTRICAL DATA zonmateriaal Ill 1 3 1 Indoor Unit Electric Wiring Diagram Schematic Diagram Ill 2 3 2 Outdoor Unit Electric Wiring Diagram Schematic Diagram Ill 12 e SERVICE PROCEDURES xa dix y E Sinn daa asina EM iik IV 1 Troubleshooting Em e IV 2 4 2 Checking the Electrical Components IV 30 5 830082 III 1 SPECIFICATIONS Tal e l 2 4 Way Air Discharge Semi concealed 2 Ceiling Mounted Type essenties l 5 Concealed MT e 8 HIE le RK edens Na Te 10 1 2 Major Component Specifications 12 A Mador EE 12 B OUDE ANE o or 22 1 3 Other Component Specifications REENEN 25 4 Way Air Discharge Semi concealed Type 25 Gailing Mounted 28 Concealed Duct nenten p 31 o entered a Ga 33 Outdoor Unts mr a l 35 1 4 Dimensional Data nnee eenen eben 38 CALMO EE UNIS 38 4 Way Air Discharge Semi concealed
9. Indoor Indoor temp 25 temp 25 F C F C 75 24 24 24 75 24 4 1 70 21 23 LiT 70 21 23 12 114 65 18 Ur pp 18 ES e TH S 22 11 5 22 5 EET 8 o Ld FT o 1 1 21211 EU WES 2 Lier 5 20 20 F 5 LEM o E a LT Q O 19 O 19 18 18 14 23 32 41 50 59 68 14 23 32 41 50 59 68 710 5 0 5 10 15 20 710 5 0 5 10 15 20 Outdoor ambient temp F C Outdoor ambient temp F C 2225 X 5 2226 X S SM830082 79 1 Specifications 1 9 Performance Charts 6 Heating Characteristics 1 Operating Current Indoor Unit TH2442 Outdoor Unit CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5095 Indoor fan speed High Indoor temp Indoor F C 15 temp 15 pa 75 24 F C 70 21 We 75 24 14 65 18 14 La 70 21 Z 13 LEE 5 12 EEE i 12 ER
10. IV 39 TOS PEN IV 40 11 PCBs and Their Location senses daneen IV 42 12 Checking procedure for each PC Board IV 44 13 TIMAGO FINS IV 45 SM830082 4 Service procedures 4 1 Troubleshooting This section explains What the LED codes mean What the remote control unit display screen messages mean How to use the flow charts to find and solve problems How to use the self diagnostic tests to find parts that aren t working right This unit is made to be trouble free and not need much service However with time moving parts wear out electronic components break down and sometimes misuse damages the unit The purpose of this section is to help you when the unit is not working properly Sometimes your experience will tell you right away where to look for a problem and when you find it you will know how to fix it at once Often however all you have is a symptom like poor cooling or outside fan doesn t come on Now you must find out the cause of the problem and then how to fix it This section provides several ways to help you go from the symptom to the cause and then the solution The first chart General Troubleshooting Flow Chart is divided into two sections Poor heating and Poor Cooling Under each heading you will find the main things that can go wrong and cause eit
11. ON OFF ON 3 SECONDS OFF UI SET SPEED LL SET SPEED LL SET SPEED OFF ON OFF ON OFF ON OFF M A ON REVERSING CYCLE OFF ON 1 Refer to 2 4 Outdoor Fan Speed Control 2 Refer to 2 2 Cold Draft Prevention Heating Chart Summary and Explanations the compressor is not controlled by the room sensor When set on remote control sensor Thermo ON When room temperature is 2 F below the set temperature T Compressor Once the compressor starts it keeps running for 5 minutes gt ON THERMO ON ON 1134 THS I Once the compressor stops it will not start running again for 3 minutes If you change the operation mode HEAT COOL or FAN during the heating cycle the control circuit stops the compressor for 3 minutes For 5 minutes after the compressor is first turned on and for 3 minutes after it is turned off Thermo OFF When the room temperature is 2 F above the set temperature T T 2 F When set on body sensor NOTE In case of Body sensor operating temperature is shifted to setting temperature 7 F Compressor Il 3 gt OFF Fig 2 SM830082 2 Processes and functions 2 2 Cold Draft Prevention Heating Cycle The cold draft prevention function controls indoor fan speed so a strong draft of cold air will not blow out before the indoor heat exchange coils have warmed up STANDBY shows on the remote controller when the indoor fan speed is LL
12. 230V 208V 90 Indoor temp 80 F C En 70 __ 75 24 r 4 70 21 5 60 En 65 18 D E 5 H Lj B 30 i 14 23 32 41 50 59 68 7 10 5 0 5 10 15 20 Outdoor ambient temp F C 1166_X_S 87 SM830082 1 Specifications 1 9 Performance Charts 6 Heating Characteristics 2 Operating Pressure D Indoor Unit 36 Type Outdoor Unit CH3642 High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5096 Indoor fan speed High 230V 208V Indoor 340 temp 320 F 00 056 CERE 65 18 280 EE 5 B 260 5 amp 240 S 220 9 200 180 14 23 32 41 50 59 68 710 5 0 5 10 15 20 Outdoor ambient temp F C 1165_X_S SM830082 88 1 Specifications 1 9 Performance Charts 6 Heating Characteristics 2 Operating Pressure Indoor Unit 42 Type Outdoor Unit CH4242 High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5095 Indoor fan speed High 230V 208V Indoor 340
13. Sensor address Sensor temperature F REMOTE CONTROLLER Unit No Indoor unit address DOES 1929 M I SM830082 IV 22 4 Service procedures Refer to the table below for the relationship between the sensor address and the location of the sensor Relationship between the sensor address and the location of sensor r Addr CODE No a Location of Sensor Themistor Indoor Unit 00 A C controlled room Temp 01 Remote controller room Temp 02 Indoor air suction Temp 03 Indoor coil Temp E1 04 Indoor coil Temp E2 05 Indoor coil Temp E3 06 07 08 Indoor electronic expantion valve Temp 09 Outdoor Unit OA Discharge gas Temp 0C 00 Outdoor coil liquid Temp C2 OE Outdoor coil liquid Temp C1 OF 10 11 12 13 14 NOTE In case there are no sensor equipped with the unit is shown on the display O Resetting the remote controller display to previous mode 0 To reset the display press 4 button then the remote controller will return to previous mode C Accessing the service problem history The gist of past service problems can be recalled a Press the sr and Z buttons simultaneously for 4 seconds or more to enter the service check mode The term CHECK SERVICE will be illuminated and code No 01 will be displayed at first Then the most recent a
14. Outdoor Unit Hot air lt gt Z AVOID Heat source Out heat sources exhaust fans etc Fig 2 1 door unit damp humid or uneven locations DO 0591 C I choose a place as cool as possible Fig 2 1 choose a place that is well ventilated and outside air temperature does not exceed maximum 115 F Min Min Obstacle above constantly 1 inch 1 inch pee e allow enough room around the unit for air intake LLLLLLLLLLT Min exhaust and possible maintenance Fig 2 2 Ain We Air provide a solid base about 6 inch above ground level dis to reduce humidity and possible water damage in charge the unit and decreased service life Fig 2 3 use lug bolts or equivalent to bolt down unit reducing vibration and noise Ground Fig 2 2 a In case of multiple installations W Unit spacing if air discharge chamber is not used W Unit spacing when air discharge chamber is used Min 4 ft 4 Min 5 ft Min 4 ft Min 4 ft Min 8 inch Min 4 ft t a Min 1 ft 2 inch Air i Mins t 1 discharge chamber Min 1 ft 2 inch Y Min 1 ft Min 8 inch Min 1 ft If you would like to make the separation smaller on the air discharge side use an air discharge chamber You can install any number of units side by side Only up to 3 units can be installed side by side under the above conditions The next group must be spaced at least 1 ft away from the f
15. Indoor Fan Motor 1X 3X Auxiliary Relay Motor Operated Valve RY1 2 3 Indoor Motor Thermal Protector CR Indoor Controller Running Capacitor LSW Limit Switch Power Transformer Auto Louver Motor Drain Pump Remote Control Unit Float Switch Optional Parts Room Thermistor Room Thermistor Thermistor Indoor Coil E1 Terminal Plate TH3 Thermistor Indoor Coil E2 Connector Thermistor Indoor Coil E3 Terminal Fuse 854 2 5268 930 00 1 X SM830082 Il 3 1 1 00 26 8929 2 v88 W 3 Electrical data dc LHM due aA CV ZH L HO Jojponuog AH9 LHM WI TH2442 TH3642 TH4242 Ceiling Mounted Type TAaA NYD de jeuiuue L uue3 an Ona 4a 99UU0D LHM d 6 6 lt CH ng de 115 T3A NHO t euwe On THA NHO wesbeig Buui 2117994 e dS ald 2 leuw K DOO Xt jonuog JOMOd yun JOOPINO oL SM830082 Ill 4 3 Electrical data Ceiling Mounted Type TH2442 TH3642 TH4242 Schematic Diagram p 2 5 7 7 2 Eeer eE
16. AHO 19 o LA DHO TAA Nua na de qS eield 2 L D LL 146 T3A NHO jonuog yun OL wesbeig 2117994 e SM830082 Ill 6 3 Electrical data Concealed Duct Type UH2442 UH3642 Terminal Plate 5P wel L 2Q4 Symbols Description Symbols Description FMI Indoor Fan Motor CR Indoor Controller 49 Indoor Motor Thermal Protector Remote Control Unit Running Capacitor Optional Parts Fuse H Room Thermistor Drain Pump Terminal Plate Float Switch Connector Power Transformer Terminal Auxiliary Relay Auxiliary Relay Motor Operated Valve Room Thermistor Thermistor Indoor Coil E1 Thermistor Indoor Coil E2 Thermistor Indoor Coil E3 S 854 2 5268 940 00 0 UH1242 SM830082 III 7 3 Electrical data CVVZHM 0 00 926 8929 2 98 W ZpvZH L 49 1 8 93 23 13 due NHD LHM LHM ne nqa 09 09 021 Wd
17. Fan motor Model KFG4X 101C6P Source 230 208 V 1 phase 60 Hz No of pole r p m 230 V High 4 1 099 Nominal output 100 Coil resistance BRW WHT 61 05 ORG YEL Ambient temperature 68 F WHT VLT 9 955 YEL BLK VLT ORG 9 576 BLK PNK Safety device Operating temperature 266 174 2 27 Run capacitor 440 V 5 uF Electronic expansion valve Coil EKV MOZS584E0 Coil resistance ORG GRY 46 YEL GRY Ambient temperature 68 F RED GRY 46 BLK GRY Valve body HKV 30D27 Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch 3 14 9 Face area i 3 51 0 326 Auto louver motor Model No MT8 3C Auto louver motor Rated 240 VAC 3 W 3 rpm Coil resistance Ambient temperature 77 F 16 430 Q 8 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 17 1 Specifications 1 2 Major Component Specifications A Indoor Unit MODEL No UH2442 Source 230 208 V 1 phase 60 Hz Remote controller Option RCS BH80UA WL Controller P C B Ass y CR TH2442 Control circuit fuse 250V 3A Fan Number diameter in Centrifugal 4 5 29 32 150 Fan motor Model KFG4X 71B6P Source 230 208 V 1 phase 60 Hz No of pole r p m 230 V High 4 920 Nominal output 100 Coil resistance BRW WHT 747 ORG YEL Ambient temperature 68 F
18. ON bin kg cm 341 3 28 44 24 2 0 Fan Propeller Number diameter 2 18 3 32 460 Fan speeds 2 AUTO Fan motor Model KFC6T 91D6P x 2 Source 230 208 V 1 phase 60 Hz No of pole rpm 230 V High 6 879 Nominal output 110x2 Coil resistance Ambient temperature 68 F BRN WHT 67 14 VLT YEL 11 42 WHT VLT 64 85 YEL PNK 10 60 Safety device Internal type Operating temperature 248 9 171 27 Run capacitor 440 4 uF x 2 Heat exchange Coil Aluminum plate fin Copper tube Rows Fins per inch 2 14 1 Face area 11 63 1 08 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 1 2 Major Component Specifications B Outdoor Unit MODEL No Source 1 Specifications CH4242 230 208 1 phase 60 Hz Compressor Scroll Hermetic Model ZR47KC Source 230 208 1 phase 60 Hz Nominal output 4 270 Compressor oil 1 240 Coil resistance Ambient temperature 77 F R W 0 475 S W 1 850 Safety device Internal type Overload relay models Operating temperature Open F 320 9 Close F 189 20 Operating ampere at 77 F A Run capacitor VAC uF 400 V 50 uF Refrigerant amount charged at shipment Ibs
19. Optional Wireless Remote Controller Timer RCS SH80UA WL RCS BH80UA WL 72 hour ON OFF Air deflection Horizontal Vertical Manual Automatic Air filter Washable easy access Indoor Hi Me Lo Operation sound Outdoor Hi 40 38 36 53 Refrigerant control Electronic Expansion Control Valve REFRIGERANT PIPING Limit of piping length 165 50 Limit of piping length at shipment 100 30 Limit of elevation difference between the two units Outdoor unit is higher than indoor unit 165 50 Outdoor unit is lower than indoor unit 100 30 1 4 6 35 3 4 19 05 Indoor unit Outdoor unit 7 15 32 28 15 16 51 3 16 37 1 32 26 3 8 13 3 8 9 7 16 32 17 32 54 19 32 40 29 31 32 16 3 8 60 157 77 170 Refrigerant piping Narrow pipe Flare type Wide pipe DIMENSIONS amp WEIGHT Unit dimensions Height Width Depth Indoor grille dimensions Height Width Depth Net weight Shipping weight Shipping volume Cooling Rating conditions Heating Rating conditions 8 9 12 3 0 349 DATA SUBJECT TO CHANGE WITHOUT NOTICE Room temperature 80 F DB 67 F WB Ambient temperature 95 F DB 75 F WB Room temperature 70 F DB 60 F WB Ambient temperature 47 F DB 43 F WB Low temp conditions Room temperature 70 F DB 60 F WB Ambient temperature 17 F
20. 4 2 3 Automatic Fan Speed Indoor Unit un Il 5 dites eeen Il 5 B Heating MERE Il 5 2 4 Outdoor Fan Speed Control Il 6 fis olo 016 NEN CIERRE Il 6 gt 6 2 5 Freeze Prevention Cooling 7 2 6 Condensing Temperature Control Cooling 8 2 7 Overload Protection Heating 9 2 8 Discharge Temperature Control Cooling and Heating Il 10 2 9 Auto Mode for Automatic Heating Cooling Switching Il 11 2 10 Defrosting Control Outdoor Heat Exchanger Coil Heating Il 13 2 11 4 Way Valve Solenoid Control Il 14 A Normal Control Mode deg ee Il 14 B AUTO Gontr l MOod uuu aa ENEE pausa aane nd Il 15 2 12 Automatic Restart after Power Interruption Il 15 2 13 Electronic Refrigerant Control Valve Il 16 2 14 Compressor Discharge Gas Temperature Il 16 emet cH dc PH Il 16 B Heating Except During Defrosting
21. Isx 1 117 Is Normal Operation Range eurem value e 0447 M S Fig 18 Rated Current Value Overload Protection Locked Compressor Cut off Outdoor Model Is A Is x 1 17 A Is x 1 4 A CH2442 17 1 20 0 23 9 CH3642 27 5 32 2 38 5 CH4242 34 7 40 6 48 6 Chart Summary and Explanations Overload Protection When the detected current is 1 17 1 4 times greater than the rated current value Is and continues for 30 seconds both compressor and outdoor fan stop Thermostat OFF After 3 minute pause if the air conditioner is ready for Thermostat ON it starts again However if the condition mentioned above repeats twice within 30 minutes the remote controller displays the alarm message H01 compressor overload Locked Compressor Cut off When the detected current is 1 4 times greater than the rated current value Is and continues for 2 seconds both compressor and outdoor fan stop Thermostat OFF After 3 minute pause if the air conditioner is ready for Thermostat ON it starts again However if the condition mentioned above repeats twice the remote controller displays the alarm message HO2 compressor locked Failure of Compressor Current Detection When the Compressor Current Detection Circuit fails to detect the compressor current within 2 seconds after compressor starts both compressor and outdoor fan stop Thermostat OFF After 3 minu
22. N DS a 2 SM830082 61 1 Specifications Indoor Unit TH4242 Outdoor Unit CH4242 208V 1 phase 60Hz RATING CAPACITY 40 000 BTU h AIR FLOW RATE 800 CFM CONDENSER AMBIENT TEMP F C TC 36 470 35 350 34 090 32 730 31 000 39 340 38 210 36 320 33 800 31 000 TC o 63 7 2 32 690 31 700 30 670 29 520 28 320 35 560 34 560 33 540 32 390 31 180 20 150 19 320 18 410 17 440 16 400 23 020 22 190 21 280 20 300 19 260 26 010 25 190 24 280 23 300 22 260 TC 43 640 41 920 40 000 37 880 35 560 c 4 98 67 19 4 31 750 30 920 30 010 29 040 28 000 28 880 25 130 45 960 38 680 3 5 05 16 430 13 330 71 19 300 16 200 21 7 22 300 19 200 25 160 22 060 28 030 24 930 TC 46 880 39 960 3 05 5 13 75 15 100 12 450 23 9 18 100 15 450 20 970 18 320 23 840 21 190 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h Compressor Input KW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB SM830082 62 1 Specifications Indoor Unit UH2442 Outdoor Unit CH2442 230V 1 phase 60Hz RATING CAPACITY 24 000 BTU h AIR FLOW RATE 670 CFM CONDENSER AMBIENT TEMP F C TC ooo a II 59 lt 15 0 22 610 21 970 21 240 20 280 18 600 24 310 23 140 21 790 20 280 18 600 172 8 TC __ E um mts nam 2 SHC 19 4 SHC 15 800
23. 104 SM830082 6 Wiring System Diagrams 1 Basic wiring diagram for standard control 1 Specifications Outdoor Unit R C Address on the PCB 0 S2 BLK 0 Factory shipped state Indoor Unit Inter unit power wiring Single phase 230 208V Inter unit control wiring Low voltage Ha 2100 Remote controller H Option Power supply Single phase L2 230 208V Remote controller wirings are wire joint connection 1 Refer to Recommended Wire Length and Wide Diameter for Power Supply System for the explanation of A B D and E in the above diagrams Inter Unit Control Wiring C and remote control ler wiring D E has no polarity But for other wiring respect polarity Be sure to connect as shown in the Wiring System Diagram R C Address should be set before turning the power on Regarding the R C Address setting refer to Auto address setting can be executed by a remote controller automatically 2085 M I CH Type 5P terminal board 2P terminal board O LOTO ele 1 2 UIU2 Inter unit Power Inter unit power wiring supply control wiring
24. 2 57 0 24 Louver Motor Model M2EA24ZA01 Rating 208 to 230 V 60 Hz No of pole rpm 8 3 Output 2 5 Coil resistance Ambient temperature 68 F 16 45 8 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 20 1 2 Major Component Specifications A Indoor Unit MODEL No 1 Specifications KH3642 Source 230 208 1 phase 60 Hz Remote controller Option RCS BH80UA WL Controller P C B Ass y CR TH2442 Control circuit fuse 250V 3A Switch Ass y SW KHS2432 Fan Cross flow Number Dia and length 1 O D 4 13 18 120 L46 1 170 Fan motor Model SFG4Q 41B6P Source 230 208 1 phase 60 Hz No of pole r p m 230 V High 4 1 273 Nominal output 50 Coil resistance Ambient temperature 68 F GRY WT 1223 ORG YEL 23 03 WHT VLT 1598 YEL PNK 9 272 VLT ORG 11 93 Safety device Operating temperature 266 174 2 26 Run capacitor 440 V 4 uF Electronic expansion valve Coil EKV MOZS557E0 Coil resistance Ambient temperature 68 F ORG GRY 46 YEL GRY 46 RED GRY 46 BLK GRY 46 Valve body HKV 30D26 Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch San 12 7 Face area
25. 5 13 6 13 12 12 i 59 68 86 95 104 59 68 77 86 95 104 15 20 25 30 35 40 15 20 25 30 35 40 Outdoor ambient temp F Outdoor ambient temp F C 1466 X S 1467 X S SM830082 74 1 Specifications Performance Charts Cooling Characteristics 1 Operating Current Indoor Unit TH4242 Outdoor Unit CH4242 Operating current characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5096 Indoor fan speed High Outdoor fan speed Indoor Outdoor fan speed Indoor Low High temp Low High temp 24 F C 1 I 23 23 I 85 30 _ ET 80 27 E 22 85 30 lt 22 A Sg 80 27 zz 75 24 5 21 224 75 24 5 21 E 70 21 7 70 21 5 Zal 22222 9 20 9 20 2 i 2 S 19 22222 19 ETT i L l 2 18 18 17 17 I 59 68 77 86 95 104 59 68 77 86 95 104 15 20 25 30 35 40 15 20 25 30 35 40 Outdoor ambient temp F C Outdoor ambient temp F C 2223 X_S 2224 5 SM830082 l 75 1 Specifications 1 9 Performance Charts Cooling Characteristics 1 Operating Current D Indoor Unit UH2442 Outdoor Unit CH2442 Operating current
26. 5 22 dd 5 22 E LL 8 LE o 2 EE nie E LER 20 8 20 222 LLLA o amp 19 EE e 19 18 18 14 23 32 41 50 59 68 14 23 32 41 50 59 68 710 5 0 5 10 15 20 710 5 0 5 10 15 20 Outdoor ambient temp F C Outdoor ambient temp F C 2225 X 5 2227 X 5 SM830082 81 1 9 Performance Charts 6 Heating Characteristics 1 Operating Current D Indoor Unit UH2442 1 Specifications Outdoor Unit CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5095 Indoor fan speed High Indoor Ind temp F C 15 19 bre L1 75 24 14 14 70 21 1 75 24 11122 65 18 lt 13 4 70 21 lt 13 t C 65 18 t TET 5 12 12 1 LT 8 11 8 11 2222 e 12 22 S 10 10 o o 8 9 Leer 9 8 8 14 23 32 41 50 59 68 14 23 32 41 50 59 68 710 5 0 5 10 15 20 10 5 0 5
27. Is cooling load too heavy Review cooling load estimate Replace the 4 way valve Refrigerant flow 4 way valve is failure defective Refrigerant Charge refrigerant gas shortage 9 9 9 Electronic refrigerant Replace the valve control valve is defective P Compressor is defective Replace the compressor Service valves are not fully open Open the valves fully Nai enough S Ar Clean the filter circulation is clogged Is fan speed set to LOW Set the fan speed to either MEDIUM or HIGH Refrigerant tubes between indoor and outdoor units are not insulated Insulate wide and narrow tubes separately 0458 M I1 SM830082 B Heating b Heating Poor heating Refrigerant flow failure Not enough air circulation Cold air is discharged Cold draft prevention is not working Is setting temp suitable Is heating load 4 Service procedures Change the setting temp Review heating load too large 4 way valve is estimate defective Refrigerant Replace the valve Charge with shortage Electronic refrigerant control valve is defective Compressor is defective Service valves are not fully open Air filter refrigerant Replace the valve Replace the compressor Open the valves fully is clogged Is fan speed Clean the filter
28. Secondary BRN BRN 14 V 0 45 A RED RED 14 V 0 3 A Capacity Coil resistance Ambient temprature 77 F WHT WHT 610 RED RED 1 37 BRN BRN 0 97 ORG ORG 3 16 Thermistor cut off temperature 277 Thermistor Coil sensor TH2 3 4E 514 Coil resistance Thermistor Room sensor TH1 KTEC 35 56 Coil resistance Drain pump PJV 1428AU Rated 230 208 12 5 W Float switch FS 0218 102 MAX Rated Contact rated 50 W DC 5V 0 1 mA Solenoid control valve or coil Solenoid control valve HKV 30D27 Solenoid coil EKV MOZS742E Synchronized Motor MT8 3C DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 27 1 3 Other Component Specifications A Indoor Unit 1 Specifications MODEL No TH2442 Power Transformer ATR IIK244B Rated Primary AC 220 V 60 Hz Secondary BRN BRN 14 V 0 55 A RED RED 14 V 0 3 A Capacity Coil resistance Ambient temprature 77 F WHT WHT 480 RED RED 0 89 BRN 045 ORG ORG 2 05 Thermistor cut off temperature 277 Thermistor Coil sensor PBC 4E 514 Coil resistance Thermistor Room or coil sensor Coil resistance Electronic expansion valve Valve body IKV 24D18 Coil EKV MOZS582E0 Synchron
29. Outdoor ambient temp F 1459 X S Low Pressure Low pressure characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5096 Indoor fan speed High 230V 208V Outdoor fan speed Low High 100 Indoor temp B F C 2 2 85 30 2 1 o g 70 ET 2 80 27 eddie 75 24 2 A 70 21 50 a 40 I 59 68 77 86 95 104 15 20 25 30 35 40 Outdoor ambient temp F C 1460_X_S SM830082 85 1 Specifications 1 9 Performance Charts Cooling Characteristics 2 Operating Pressure D Indoor Unit 42 Type Outdoor Unit CH4242 High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5095 Indoor fan speed High 230V 208V Outdoor fan speed Low High 340 Indoor temp 320 F C 1 5 300 8 85 30 o 280 4 80 27 5 7 75 24 9 260 I 2 7 70 21 240 2 1 S 220 e 2 200 22 1 180 160 59 68 77 86 95 104 15 20 25 30 35 40 Outdoor ambient temp F C 2228_X_S Low Pressure Low pressure characteristics versus outdoor ambient temperatur
30. 45 1 Specifications 1 4 Dimensional data Indoor unit Wall Mounted Type 36 Type L dc 59 1 16 9 7 16 ry Ss SECHS 1 49 64 D Refrigerant gas line wide tubing 3 4 Refrigerant liquid line narrow tubing 3 8 8 Drain hose OD 1 1 4 Dimension inch 1912 X S SM830082 46 1 Specifications 1 4 Dimensional Data B Outdoor Unit CH2442 6 11 16_ P 26 _4 21 64 1 31 32 1 31 32 g T 1 X X T TS 0 1 90 e 2 37 i e c N T 9 Hesa _ O Dimension inch Hole for anchor bolt 4 21 2 2 Refrigerant tube joint narrow tube Flare connection 1 4 in 6 35 mm Refrigerant tube joint wide tube Flare connection 3 4 in 19 05 mm Refrigerant tubing inlet 8 Power supply inlet 2179 THS I SM830082 47 1 Specifications 1 4 Dimensional Data B Outdoor Unit CH3642 CH4242 6 11 16_ 26 J 1 4 21 64 _1 31 32 1 31 32 Wo 9 13 3 8
31. Discharge temperature is sensed by TH8 discharge gas sensor When the temperature rises above 203 F 24 36 Type the electronic refrigerant control valve opens at 50 steps 30 seconds until the temperature falls below 200 F 24 36 Type During HEATING operation when the temperature rises above 221 F 24 36 Type the control circuit stops the outdoor fan motor until the temperature falls below 194 F 24 36 Type Please note that this control does not function during COOLING operation For both COOLING and HEATING modes if the temperature reaches 239 F 24 36 Type the operation shuts down and alarm P3 appears on the remote controller The outdoor fan speed is controlled on discharge temp at heating mode SM830082 Il 10 2 Processes and functions 2 9 Auto Mode for Automatic Heating Cooling Switching When the AUTO mode is selected the microprocessor calculates the difference between the set temperature and the room temperature and automatically switches to the COOLING or HEATING mode to maintain the desired temperature Room temp Settemp gt COOLING Room temp lt Settemp gt HEATING This means that if the room temperature is higher or equal to the set temperature COOLING operation starts If the room temperature is lower than the set temperature HEATING operation starts COOLING SELECTION TEMP 5 deg SHIFT SET TEMP 4 deg gt lt REMOTE CONTROLLED SET TEMP DB
32. del reel EE IV 2 1 Check before and after Troubleshooting IV 3 2 General Troubleshooting Flow Chart Diagnosis and Remedy IV 4 3 Meanings of alarm IV 6 4 LED Indication on the Outdoor Units P C B ASSY IV 8 b Symptoms and parts to inspect IV 9 6 Procedures When a Specific Component Does Not Work IV 19 7 Service Functions of Remote Controller IV 21 4 2 Checking the Electrical Components IV 30 1 Measurement of Insulation Resistance IV 30 2 Checking the Protective Devices IV 31 3 Checking the Electrical Parts IV 32 4 Thermistor Characteristic Curve IV 35 5 POB Setting serene anean am teen IV 36 6 R C Address Setting Method eneen IV 37 7 Automatic Address Setting Method IV 38 8 Displaying Indoor Outdoor Unit Combination Numbers IV 38 9 Items to Check Prior to Test Run
33. 2 48 A 0 9 0 8 0 9 0 9 11 1 12 12 9 18 7 Full load conditions kW 0 18 0 16 0 18 0 17 2 53 2 48 2 89 2 81 Starting amperes A 2 2 1 1 66 60 67 9 61 8 6 Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 7 0 7 0 9 0 9 10 4 10 9 12 12 5 Rating conditions kW 0 16 0 14 0 18 0 17 2 31 2 24 2 65 2 55 A 0 7 0 7 0 9 0 9 11 2 12 2 12 8 13 8 Full load conditions kW 0 16 0 14 0 18 0 17 2 49 2 47 2 83 2 8 Starting amperes A 2 2 1 1 66 60 67 7 61 7 Cooling Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 115 F DB Heating Rating Conditions Indoor Air Temperature 70 F DB 60 F WB Outdoor Air Temperature 47 F DB 43 F WB Full Load Conditions Indoor Air Temperature 80 F DB F WB Outdoor Air Temperature 45 F DB 35 F WB SM830082 113 1 Specifications Indoor model UH3642 Outdoor model CH3642 Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 1 1 1 8 1 8 12 3 13 7 15 1 15 7 Rating conditions kW 0 22 0 2 0 3
34. 3 23 0 3 Louver Motor Model M2EA24ZA01 Rating 208 to 230 V 60 Hz No of pole rpm 8 3 Output 2 5 Coil resistance Ambient temperature 68 F 16 45 8 DATA SUBJECT TO CHANGE WITHOUT NOTIGE SM830082 21 1 2 Major Component Specifications B Outdoor Unit MODEL No Source 1 Specifications CH2442 230 208 1 phase 60 Hz Controller P C B Ass y CR CH2442 Microprocessor Control circuit fuse 250 VAC 3A Compressor Rotary Hermetic Model C 2R160H6T Source 230 208 VAC 1 phase 60 Hz Nominal output 1 700 Compressor oil 800 Coil resistance Ambient temperature 77 F C R 0 885 C 5 1 773 Safety device Internal type Overload relay models Operating temperature Open 297 9 Close 198 20 Operating ampere at 77 F Run capacitor VAC 400 VAC 40 uF Crank case heater VAC 230 VAC 30 W Refrigerant amount charged at shipment Ibs kg 822 6 17 2 8 High pressure switch ACB 1UB11 Set pressure OFF Ib in kg cm 2841 3055 J 426 6 ON Ib in kg cm 341 3 28 44 24 2 0 Fan Propeller Number diameter 1 18 3 32 460 Fan speeds 2 AUTO Fan motor Model KFC6T 91D6P Source 230 208 1 phase 60 Hz N
35. CR TH2442 Control circuit fuse 250V 3A Fan Number diameter Centrifugal 4 5 29 32 150 Fan motor Model KFG4X 101C6P Source 230 208 V 1 phase 60 Hz No of pole r p m 230 V High 4 1 040 Nominal output 100 Coil resistance Ambient temperature 68 F BRW WHT 61 05 ORG YEL WHT VLT 9 955 YEL BLK VLT ORG 9 576 BLK PNK Safety device Operating temperature 266 174 2 27 Run capacitor 440 V 4 Electronic expansion valve Coil EKV MOZS584E0 Coil resistance Ambient temperature 68 F ORG GRY 46 YEL GRY RED GRY 46 BLK GRY Valve body HKV 30D24 Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch 3 14 9 Face area 3 51 0 326 Auto louver motor Model No MT8 3C Auto louver motor Rated 240 VAC 3 W 3 rpm Coil resistance Ambient temperature 77 F 16 430 0 8 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 16 1 Specifications 1 2 Major Component Specifications A Indoor Unit MODEL No TH4242 Source 230 208 V 1 phase 60 Hz Remote controller Option RCS SH80UA WL Controller P C B Ass y CR TH2442 Control circuit fuse 250V 3A Fan Number diameter in Centrifugal 4 5 29 32 150
36. F DB 15 F WB SM830082 1 Specifications 1 1 Unit Specifications MODEL No Indoor Unit UH3642 Outdoor Unit CH3642 POWER SOURCE 230 208 V 1 Phase 60 Hz PERFORMANCE Cooling Heating Capacity BTU h 34 500 33 000 37 500 36 500 25 000 24 000 Moisture removal High Pints h 10 0 9 9 Air circulation H M L cu ft min 1 060 920 750 External Static Pressure in Aq Pa 0 24 59 at shipment 0 38 94 using jumper cable S E E R H S P F BTU Wh 10 3 10 5 7 0 7 0 ELECTRICAL RATINGS Voltage rating VAC 230 208 230 208 Available voltage range 187 253 Running amperes 15 1 15 7 18 2 19 6 Power input 3 350 3 170 3 780 3 760 3 000 2 900 Maximum overcurrent protection 40 FEATURES Controls Microprocessor Low ambient control Built in O F Fan speeds Indoor Outdoor 3 and Automatic control 3 Auto Optional Wired Remote Controller Timer RCS SH80UG 72 hour ON OFF Optional Wireless Remote Controller Timer RCS SH80UA WL RCS BH80UA WL 72 hour ON OFF Air deflection Horizontal Vertical Air filter Optional Operation sound Indoor Hi Me Lo 38 33 31 at shipment 42 38 33 using jumper cable Outdoor Hi 56 Refrigerant control Electronic Expansion Valve REFRIGERANT PIPING Limit of piping length 165 50 Limit of piping length at shipment i 100 30 Limit of elevation d
37. LED D011 2177CI Fig IV 2 REFRIGERANT SHORTAGE Note particularly that a shortage of refrigerant is only shown by the outdoor P C B Ass y LEDs and the Alarm Message does not appear on the Indoor Remote Controller The compressor keeps running even when the refrigerant is less so when you find the LED indication on the outdoor P C B Ass y stop the air conditioner immediately to avoid the compressor damage SM830082 5 1 4 Service procedures Symptoms and parts to inspect Symptom LCD on the remote controller does not display and remote controller does not operate Is the LED D80 on the indoor unit PCB lit Repair the remote Yes controller wiring Miswiring of Yes Is there 230 208 V AC Is there 230 208 V AC power supply between U1 and U2 between R and S of wires and of the terminal plate the indoor PCB indoor outdoor control lines Check and repair the power breaker etc Correct the wiring Remove the Socket connected to the OC plug on the PCB and connect to the EMG plug instead Has the indoor unit PCB fuse blown Are the connections for the 4P connector for the indoor unit s PCB power trans former good Replace the Is there 15 V AC Is the primary Is the 230 208 V AC No indoor unit power between 1 and 2 side of the indoor circuit shorted transformer of the 4P connector power transformer u es for the indoor unit s shorted power tra
38. Set the fan speed to set to LOW Refrigerant tubes between indoor and outdoor units are not insulated either MEDIUM or HIGH Insulate wide and narrow tubes separately 4 way valve is defective STANDBY is displayed Indoor coil sensor E2 is defective Replace the valve Replace indoor P C B Ass y Replace the sensor K SM830082 4 Service procedures 3 Meanings of alarm messages Possible Cause of Malfunction Alarm message Serial Remote controller is detecting E1 commu error signal from indoor unit E2 nication Indoor unit is detecting error signal from the remote controller E3 errors No serial communications signal e Mis setting Se Indoor unit is detecting error E4 signal from outdoor unit E5 Outdoor unit is detecting error signal from indoor unit E6 Indoor unit is not working correctly Outdoor unit is transmitting error signal E7 Improper setting of indoor unit or E8 remote controller E9 E12 When using group control main indoor unit address setting is duplicated For single heat pump type E14 Error in Auto address setting No or capacity of judged indoor unit is small E15 Error in Auto address setting E16 No or capacity of judged indoor unit is large Indoor unit is detecting error signal from another indoor unit E18 Activation of Pr
39. e jeuiuue Kaes ds Ild Xe Xt zun OL SM830082 III 12 3 Electrical data 3 2 Outdoor Units D CH2442 Schematic Diagram Terminal Plate 5P pe Outdoor Coil C1 Outdoor Coil C2 Discharge gas Symbols Description Symbols Description Compressor Motor CR Outdoor Controller Outdoor Fan Motor RY1 RY5 Auxiliary Relay Compressor Motor Magnetic Contactor 1Y Auxiliary Relay Outdoor Fan Motor Thermal Protector Terminal Plate High Pressure Switch Terminal Current Transmitter Connector Running Capacitor Power Transformer Crank Case Heater Four Way Valve Fuse Thermistor Outdoor Coil C1 Thermistor Outdoor Coil C2 Thermistor Discharge Gas PTC Thermistor S 854 2 5268 945 00 0 CH2442 S SM830082 Il 13 3 Electrical data 3 2 Outdoor Units CH3642 S ZV9 HO 0 00 976 8929 2 7 8 W AOEZIV LHM de NHD seo zo te DAN TBA NHO 2046 1036 ON Ut LA
40. outdoor temperature A Cooling Outdoor unit coil Outdoor fan temperature C2 motor FMo e or 77 F H 32 F or more less than 77 F M cr 77 n less than 32 F L M 5 32 8 L o Fig 6 B Heating Outdoor coil Outdoor fan c temperature C2 motor FMo m M or more 57 F M 5 57 less than 57 F H 5 gt ao Q 3 H 2 Fig 7 SM830082 2 Processes and functions 2 5 Freeze Prevention Cooling Freeze Prevention keeps the indoor heat exchange coil from freezing Freezing reduces the efficiency of the unit and frost build up on the coil blocks cool air circulation from the indoor unit s fan MIN VALUE OF EITHER E1 OR E2 INDOOR UNIT TEMP 34 33 32 81 F ELECTRONIC REF CONTINUOUS DETECTION FOR 2 MINUTES CONTROL VALVE SIGNAL OPEN COMPRESSOR MINIMUM 3 ON MINUTES ON 1925 THS I Fig 8 Note Freeze prevention is controlled by the temperature at the indoor heat exchanger coil as sensed by either sensor E1 located at the entrance of the coil or sensor E2 located on the middle of the coil Freeze prevention cycle is controlled by the lower temperature sensed at either of the two sensors Chart Explanations and notes This chart shows when the electronic refrigerant control valve opens to regulate the temperatu
41. 1 3 8 50 13 32 N e M 40 N V ao Air outlet E more 51 3 16 or more Sanel S iD Service space Service space 9 7 8 1 40 Dimension inch Drain connection 3 Drain connection for left side 8 Refrigerant liquid line 1 4 Flare connection Refrigerant gas line 3 4 Flare connection Hole for rear side refrigerant tubing Hole for through the wall refrigerant tubing 53 15 16 hole Hole for fresh air intake Knockout hole Hole for right side refrigerant tubing Knockout hole Hole for left side drain connection Knockout hole Hole for power supply Conduit size 1 2 09 Infrared rays receiver for wireless remote controller Cutting position for fresh air intake 1919 THS I SM830082 1 4 Dimensional data Indoor unit Ceiling Mounted Type 1 Specifications La Ty KZ ae 5 9 16 6 11 16 Hole for wall through piping View from front 36 42 Type 6 3 32 7 31 32 12 7132 N xr e e st ole 111 322 NT P EDS yo Ke d LT e i ELEM j j 4 3 3 8 5 3 4 11 1 32 3 5 32 Holes in the rear side View from front N e TY Al ers o o fir Le Ill 3 5 5 3 16 2 25 32 2 INT N c H 7 2 T 7 5 59 1 4
42. 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 17610 1 60 50 40 20 APPROXIMATE 0 0002 ubar M 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz OCTAVE BAND SOUND PRESSURE LEVEL dB o 0 dB 1762 U 1 SM830082 1 92 1 10 Noise Criterion Curves 6 Wall Mounted Type 1 Specifications MODEL KH2442 MODEL KH3642 SOUND LEVEL HIGH 45 dB A NC 38 SOUND LEVEL HIGH 48 dB A NC 41 LOW 40 dB A NC 33 LOW 40 dB A NC 33 CONDITION Distance 3 3 ft Under the unit 3 3 ft CONDITION Distance 3 3 ft Under the unit 3 3 ft SOURCE 208 230V 1Phase 60Hz SOURCE 208 230V 1Phase 60Hz 60 60 B 50 i NC50 50 i i I T i i 1 j A m 90 m 4 5 Em d E IC IN 7 ra e Io S G 30 o 50 m Nc 30 9 zy I Ki Deo Z T G APPROXIMATE DN APPROXIMATE 1 THRESHOLD OF 2 g THRESHOLD OF SS HEARINGFOR NI 8 uEARING FOR uc CONTINUOUS S uc CONTINUOUS S II lt E NOISE oy NOISE OS I I 1 OS 10 O2 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz 2119 KI 93 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES
43. 75 14 840 23 9 18 060 21 130 24 210 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB 2 96 3 25 3 55 20 070 19 270 18 390 17 440 16 430 67 23 150 22 340 21 470 20 520 19 500 19 4 31 710 28 870 44 360 38 680 3 28 4 56 15 460 13 140 18 540 16 210 21 750 19 430 24 830 22 500 27 900 25 580 45 360 39 960 3 34 4 62 14 260 12 270 17 480 15 490 20 550 18 560 23 630 21 640 SM830082 56 1 Specifications Indoor Unit TH2442 Outdoor Unit CH2442 230V 1 phase 60Hz RATING CAPACITY 22 400 BTU h AIR FLOW RATE 460 CFM CONDENSER AMBIENT TEMP F C 23 9 29 4 35 0 40 6 46 1 TC a eee I S SHC CI TC SHC SHC 19 4 SHC 13 580 12 450 SHC 16 170 15 710 15 200 14 660 14 080 17 800 17 340 16 830 16 280 15 700 8 320 7 390 9 940 9 020 11 640 10 710 13 260 12 340 14 890 13 960 TC 26 250 25 400 24 510 23 480 22 380 214 2 63 23 9 67 71 75 SHC 8 380 8 050 7 700 7 910 6 900 SHC 10 080 9 740 9 400 9 010 8 600 SHC 11 700 11 370 11 020 10 630 10 220 SHC 13 320 12 990 12 650 12 250 11 850 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB 4 TC 25 740 24 8
44. Hz 2120 K I SM830082 1 Specifications 1 10 Noise Criterion Curves Outdoor Units MODEL CH2442 MODEL CH3642 SOUND LEVEL 53 dB A NC 44 SOUND LEVEL 56 dB A NC 45 CONDITION Distance 1m Height 1m CONDITION Distance 1m Height 1m SOURCE 230 208 V 1 Phase 60 Hz SOURCE 230 208 V 1 Phase 60 Hz 90 90 80 80 5 5 70 NC 70 0 60 NC 60 i 50 50 NC 50 40 40 NC 40 0 0002 ubar 30 30 NC 30 OCTAVE BAND SOUND PRESSURE LEVEL dB 0dB 0 0002 ubar OCTAVE BAND SOUND PRESSURE LEVEL dB THRESHOLD OF 4 20 THRESHOLD OF 2 ei 0 HEARING FOR NC 20 8 lcontinuous 2 CONTINUOUS NOISE NOISE 0 10 60 125 250 500 1000 2000 4000 8000 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz BAND CAENTER FREQUENCIES Hz 0598 C S 0597 C S MODEL CH4242 SOUND LEVEL 56 dB A NC 47 CONDITION Distance 1m Height 1m SOURCE 230 208 V 1 Phase 60 Hz 90 80 70 60 50 EN 0 0002 ubar 20 FTHRESHOLD OF HEARING FOR CONTINUOUS OCTAVE BAND SOUND PRESSURE LEVEL dB 088 NOISE 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz 0599 C S REMARKS 1 Value obtained in the actual place where the unit is installed may be slightly higher than the values shown in this graph because of the conditions of operation the structure of the building the background
45. Indoor Unit Entering Air Temp 80 FDB 67 FWB a SM830082 54 1 Specifications Indoor Unit XH4242 Outdoor Unit CH4242 230V 1 phase 60Hz RATING CAPACITY 42 000 BTU h AIR FLOW RATE 980 CFM CONDENSER AMBIENT TEMP F C TC eee ee ee 29 690 28 560 24 460 33 060 31 930 27 830 36 580 35 460 31 350 32 550 32 550 TC Cl TC CI 24 170 31 300 30 480 27 540 34 670 33 850 30 910 TC 46 580 40 610 3 11 3 41 4 62 16 770 16 070 13 670 20 140 19 440 17 040 23 660 22 960 20 560 27 030 26 330 23 930 lt 30 400 29 700 27 300 TC 41 960 ee a IO 4 69 SHC 14 820 12 770 SHC 18 350 16 290 SHC 21 720 19 660 SHC 25 090 23 030 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB SM830082 1 55 1 Specifications Indoor Unit XH4242 Outdoor Unit CH4242 208V 1 phase 60Hz RATING CAPACITY 40 000 BTU h AIR FLOW RATE 880 CFM CONDENSER AMBIENT TEMP 7260 WB 75 85 95 105 115 en en en wo vn EN M mmm eenen CI 28 050 26 960 25 750 24 420 22 990 59 15 0 42 040 40 160 38 160 35 880 33 400 2 94 63 17 2 24 070 27 150 26 360 25 560 24 680 23 730 22 720 29 440 28 630 27 760 26 810 25 790 32 510 45 960 16 140 71 19 220 21 7 22 430 25 510 28 580 46 880 3 05
46. J 11 906 L 33 27 32 xj T DNA 19 11 16 29 13 16 Suspention bolt pitch e gi 14 27 32 14 1 2 22 9 32 Suspention bolt pitch 33 27 32 19 11 16 32 9 32 Ceiling opening 5 c lt 15 32 8 11 16 15 32 EI Detail of 2 5 32 2 3 8 Dimension inch Air intake grille Q Air outlet Refrigerant liquid line 3 8 XH12 18 1 4 XH24 Refrigerant gas line 1 2 XH12 5 8 XH18 3 4 XH24 6 Drain connection ES 6 Power supply entry conduit size 1 2 SC For discharge duct Suspention bolt mounting 9 For fresh air intake 8 27 32 es 30 9 16 Detail of D 15 32 _ SM830082 38 1 Specifications 1 4 Dimensional data Indoor unit 4 Way Air Discharge Semi concealed Type 36 42 Type 11 15 32 9 19 32 Min 2 15 32 Min 19 32 Ju gt x 32 9 3
47. LA LHM LHW dz Jojog9uuoo Js UHM LHM da 8 8 T3A4 13A 174 LHM wo o LHM TIM 13A NEIE LHM 10 wo LHM AHO4 x AUD 4 OF AUD NH84 cu ec NHA AHO4 Nug AHO DHO u ________ _ _ euw uue3 LHWdE 502 13A d 525 T3A NHO LHM d6 T3A NHO qaq uua de ald Jeuiuue l en in OL wesbeig 2117994 e yey Diehl agoe dS alld OOO user Hun Joopu OL SM830082 Ill 14 3 Electrical data 3 2 Outdoor Units Q CH3642 Schematic Diagram Terminal Plate 5P e Hs EP Outdoor Coil C1 Outdoor Coil C2 Discharge gas ee Symb
48. Secondary 14 V Measure the resistance between No 1 and No 2 BRN lead wires Refer to 1 3 Other component specifications 8 Indoor fan motor FMI Indoor unit Measure the coil resistance Measure the resistance between each terminal of 9P WHT socket connected to the indoor fan motor Refer to 1 2 A Major component specifications 4 Outdoor fan motor FMO Outdoor unit Measure the coil resistance e Measure the resistance in the same manner as explained above Refer to 1 2 B Major component specifications SM830082 IV 32 4 Service procedures Motor capacitor Both in indoor and outdoor unit Remove the lead wires from the capacitor terminals and then place a probe on the capacitor terminals as shown in Fig IV 19 Observe the deflection of the pointer setting the resistanc measuring range of the multimeter to the maximum value The capacitor is good if the pointer bounces to a great extent and then gradually returns to its original position NOTE The range of deflection and the deflection time differ according to the capacity of the capacitor Multimeter Compressor motor capacitor Fan motor capacitor Fig IV 19 Continuity of fuse on P C B Ass y Check for continuity using a multimeter as shown in Fig IV 20 NOTE Method Used to Replace Fuse on PCB Ass y 1 Remove t
49. Service procedures 15 Symptom LCD on the remote controller displays CHECK E16 When the group of the units are installed is there any mis cross witing between inter unit control wiring and refrigerant tubing Are the total capacities of indoor units Select indoor units which match with to that of outdoor units more than 10796 the outdoor capacity Confirm less than 5 indoor units are connected 0647 M S 16 Symptom LCD on the remote controller displays CHECK L13 When the group of the units are installed is there any mis cross Spall ne wing between inter unit control wiring and refrigerant tubing Check the capacity of the indoor unit by remote controller Ae AC See Test Run Manual 17 Check P9 is displayed on the remote control unit Is PNL connector socket being attached to panel connected firmly with PNL plug Connect firmly Replace P C B Ass y in the indoor unit 2100 M S SM830082 IV 17 4 Service procedures 18 Symptom LCD on the remote controller displays CHECK H01 H02 H03 compressor current detection Please check the related part described in the following chart after confirming the code setting S4 of the outdoor unit s capacity on the PCB in the outdoor unit CHECK H01 display CHECK H02 display CHECK HOS display Compressor overload Compressor lock detection detection Compressor current detection cir
50. WHT VLT 19 1 YEL BLK VLT ORG 10 5 BLK PNK Safety device Operating temperature 266 174 2 27 Run capacitor 440 V 5 Electronic expansion valve Coil DKV MOZS697E0 Coil resistance ORG GRY 46 YEL GRY Ambient temperature 68 F RED GRY 46 BLK GRY Valve body IKV 24D12 Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch 3 14 9 Face area 2 03 0 189 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 18 1 2 Major Component Specifications A Indoor Unit MODEL No 1 Specifications UH3642 Source 230 208 V 1 phase 60 Hz Remote controller Option RCS BH80UA WL Controller P C B Ass y CR TH2442 Control circuit fuse 250V 3A Fan Number diameter Centrifugal 4 5 29 32 150 Fan motor Model KFG4X 141A6P Source 230 208 V 1 phase 60 Hz No of pole r p m 230 V High 4 940 Nominal output 100 Coil resistance Ambient temperature 68 F BRW WHT 399 ORG YEL WHT VLT 6 91 YEL BLK VLT ORG 11 4 BLK PNK Safety device Operating temperature 266 174 2 27 Run capacitor 440 V 5 uF Electronic expansion valve Coil DKV MOZS698E0 Coil resistance Ambient temperature
51. XH2442 Auto louver motor MT8 3C Auto louver motor Rated 240 3 W 3 rpm Coil resistance Ambient temperature 77 F 16 430 248 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 12 1 Specifications 1 2 Major Component Specifications A Indoor Unit MODEL No XH3642 Source 230 208 1 phase 60 Hz Remote controller Option RCS SH80UA WL Controller P C B Ass y CR TH2442 Control circuit fuse 250 VAC 3A Fan Number diameter in Turbo 1 17 7 16 443 Fan motor Model SFG6X 81A6P Source 230 208 1 phase 60 Hz No of pole r p m 230 V High 6 467 Nominal output 60 Coil resistance BRW WHT 754 ORG YEL Ambient temperature 68 F WHT VLT 6 7 VLT PNK VLT ORG 206 YEL BLK Safety device Operating temperature 266 174 2 27 Run capacitor 440 V 5 uF Electronic expansion valve Coil EKV MOZS742E Coil resistance at 20 C ORG GRY 46 YEL GRY RED GRY 46 BLK GRY Valve body HKV 30D27 Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch 2 14 9 Face area 8 20 0 762 Panel Model No PNR XH3642 Auto louver motor MT8 3C Auto louver motor Rated 240 3 W rpm Coil resistance Ambient temperature 77 F 16 430 Q 8 DATA SUBJECT TO CHANGE WITHO
52. cooling within 1 minute according to the following conditions Compressor has stopped under the operation of AUTO mode condition 4 way valve delays its switching for 30 50 seconds after compressor has been turned ON 0446 M S 2 12 Automatic Restart after Power Interruption This air conditionner has a power failure recovery function Il 15 Fig 17 SM830082 2 Processes and functions 2 13 Electronic Refrigerant Control Valve This valve allows very precise and smooth control of the amount of refrigerant flow in the system Since the valve is operated by a step motor the control circuits can open or close it in very exact amounts so the degree of heating or cooling can be changed by just a little or changed very quickly or slowly Completely close 0 step Full open 480 step Model Min open M ax open SES HEAT COOL i 24 type 100 step 100 step 36 type 90 step 90 step 480 step 42 type 100 step 100 step C Fuzzy Control Fuzzy Control is a controlling system to control electronic refrigerant control valve using fuzzy logic It regulates the functions of heating and cooling as well as some of the processes inside the unit by taking account of many different conditions of temperature fan speed etc These control circuits work automatically to send just the right amount of refrigerant through the Electronic Refrigerant Control Valve 2
53. 0 7 0 7 1 8 1 8 15 4 16 8 17 9 19 3 Full load conditions kW 0 16 0 14 0 36 0 34 3 45 3 38 3 97 3 86 Starting amperes A 1 1 2 2 95 86 97 7 88 7 6 Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 7 0 7 1 8 1 8 15 7 17 1 18 2 19 6 Rating conditions kW 0 16 0 14 0 36 0 34 3 43 3 41 3 95 3 89 A 0 7 0 7 1 8 1 8 13 6 14 6 16 1 17 1 Full load conditions kW 0 16 0 14 0 36 0 34 3 02 2 98 3 54 3 46 Starting amperes A 1 1 2 2 95 86 97 7 88 7 Cooling Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 115 F DB Heating Rating Conditions Indoor Air Temperature 70 F DB 60 F WB Outdoor Air Temperature 47 F DB 43 F WB Full Load Conditions Indoor Air Temperature 80 F DB F WB Outdoor Air Temperature 45 F DB 35 F WB SM830082 I 111 1 Specifications Indoor model TH4242 Outdoor model CH4242 Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 V 208 V 230 V 208 V 230 V 208 V 230 V 208 V A 0 8 0 7 1 8 1 8 18 0 18 8 20 6 21 3 Rating conditions kW 0 18 0 15 0 36 0
54. 11 460 11 170 10 870 13 320 13 040 12 740 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air 80 FDB 67 FWB N n n m o SM830082 68 1 Specifications Indoor Unit KH3642 Outdoor Unit CH3642 230V 1 phase 60Hz RATING CAPACITY AIR FLOW RATE 830 CFM CONDENSER AMBIENT TEMP F C WB 75 85 5 105 115 33 430 25 580 E 2 32 3 36 23 980 20 030 59 lt 26 900 22 960 15 0 29 960 25 580 32 880 31 810 29 960 27 890 25 580 33 430 31 810 29 960 27 890 25 580 9 34 680 27 560 2 34 3 42 I 20 340 17 040 63 23 260 19 960 17 2 26 320 23 010 29 240 25 940 32 160 27 560 36 000 29 340 2 36 3 45 16 680 13 850 67 19 600 16 770 19 4 22 660 19 820 25 580 22 750 28 500 25 670 37 920 36 600 35 180 33 630 31 910 2 39 71 217 13 060 10 720 15 980 13 640 19 040 16 700 21 960 19 620 I 24 880 22 540 TC 38 680 32 970 2 43 3 55 75 12 040 10 030 23 9 15 090 13 090 18 010 16 010 20 940 18 930 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input KW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB SM830082 69 1 Specifications Indoor Unit KH3642 Outdoor Unit CH3642 208V 1 phase 60Hz RATING CAPACITY 32 000 BTU h
55. 13 2 14 9 15 5 Rating conditions kW 0 10 0 09 0 36 0 34 2 83 2 69 3 29 3 12 A 0 5 0 5 1 8 1 8 15 4 16 8 17 7 19 1 Full load conditions kW 0 10 0 09 0 36 0 34 3 45 3 38 3 91 3 81 Starting amperes A 1 1 2 2 95 86 97 5 88 5 6 Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 5 0 5 1 8 1 8 15 5 16 8 17 8 19 1 Rating conditions kW 0 10 0 09 0 36 0 34 3 40 3 38 3 86 3 81 A 0 5 0 5 1 8 1 8 14 7 16 0 17 18 3 Full load conditions kW 0 10 0 09 0 36 0 34 3 32 3 29 3 78 3 72 Starting amperes A 1 1 2 2 95 86 97 5 88 5 Cooling Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 115 F DB Heating Rating Conditions Indoor Air Temperature 70 F DB 60 F WB Outdoor Air Temperature 47 F DB 43 F WB Full Load Conditions Indoor Air Temperature 80 F DB F WB Outdoor Air Temperature 45 F DB 35 F WB SM830082 1 116 2 PROCESSES AND FUNCTIONS 2 1 Temperature Control Il 2 eet rH aaa Il 2 B HIR ID zoenen entend E 3 2 2 Cold Draft Prevention Heating Cycle
56. 14 31 32 15 3 4 gt 22 27 32 23 29 32 Dimension inch CD Hole for anchor bolt 4 213 2 Refrigerant tube joint narrow tube Flare connection 3 8 in 9 52 mm Refrigerant tube joint wide tube Flare connection 3 4 in 19 05 mm 9 Refrigerant tubing inlet Power supply inlet 1581 C S SM830082 48 1 Specifications 1 5 Refrigerant Flow Diagram Outdoor Unit CH2442 Indoor Unit 24 Type Compressor Accumulator i 8 VA O EN Gas line senice x valve Gas line Y a nipple a 19 05mm High za i 5 c5 D pressure switch 4 way valve Li Strainer w Electronic N Distributor ret control Liquid line KS vave Liquid line Z i ijs nipple cu 635mm Sub heat exchanger Strainer Cooling Cycle Heating Cycle 2180 1 Outdoor Unit CH3642 Indoor Unit 36 Type Compressor Accumulator u Accumulator Gas line service gt lt valve Gas line D nipple 19 05mm High pressure switch Muffler Away valve Heat exchanger Heat exchanger Distributor Strainer Electronic Distributor ref c
57. 14 Compressor Discharge Gas Temperature A Cooling Indoor temp F 68 77 79 82 84 90 Outdoor temp F 55 or below 57 61 81 95 97 109 Compressor discharge gas temp F 104 176 104 194 140 212 158 221 B Heating Except During Defrosting Indoor temp F 64 70 72 77 79 86 Outdoor temp F 32 or below 34 50 32 or below 34 50 52 70 3320rbelow 34 50 52 70 Compressor discharge gas temp F 104 176122 194122 194 122 212140 221 122 1941140 212 158 221 Q Operate the unit at least 30 minutes to stabilize the discharge temperature The above discharge temperature was measured with a 15m tubing length The temperature may vary with tubing length SM830082 Il 16 2 Processes and functions 2 15 Compressor Current Detection Circuit The Compressor Current Detection Circuit detects the compressor current and depending on the current range can stop the compressor motor so it will not be damaged by overcurrent Overcurrent can be caused by several factors particularly mechanical seizing of the compressor or liquid backflow Either of these conditions can hold the compressor to run and thus drawing so much current that the motor can burn out Comp Amps A Locked Comp Cut off Range Is x 1 4 e Overload Protection Range
58. 15 F WB SM830082 1 Specifications 1 1 Unit Specifications Indoor Unit Outdoor Unit MODEL No TH3642 CH3642 230 208 V 1 Phase 60 Hz Cooling Heating BTU h 34 000 33 000 40 000 39 000 25 000 24 000 POWER SOURCE PERFORMANCE Capacity Pints h 10 7 10 8 cu ft min 1 100 930 750 BTU Wh 10 4 10 7 7 3 7 3 Moisture removal High Air circulation H M L S E E R H S P F ELECTRICAL RATINGS Voltage rating VAC 230 208 230 Available voltage range 187 253 Running amperes 15 1 15 7 18 2 Power input 3 350 3 170 3 950 3 000 Maximum overcurrent protection 40 FEATURES Controls Low ambient control Fan speeds Indoor Outdoor Optional Wired Remote Controller Timer Optional Wireless Remote Controller Timer Air deflection Air filter Operation sound Microprocessor Built in 0 F 3 and Automatic control 3 Auto RCS SH80UG 72 hour ON OFF RCS SH80UA WL RCS BH80UA WL 72 hour ON OFF Manual Automatic Washable easy access 46 42 37 56 Horizontal Vertical Indoor Hi Me Lo Outdoor Hi Refrigerant control Electronic Expansion Control Valve REFRIGERANT PIPING Limit of piping length 165 50 Limit of piping length at shipment 100 30 Limit of elevation difference between the two units Outdoor unit is higher than indoor unit 165 50 Out
59. 15 temp 15 F C F C 75 24 14 12 75 24 70 21 44 LAT LA 70 21 Z 13 ee 18 Para 65 18 EEE S 12 5 12 5 ET 5 TE g 5 dE 2 TJ 10 E B 10 mee 9 O 9 8 8 14 23 32 41 50 59 68 14 23 32 41 50 59 68 710 5 0 5 10 15 20 710 Cs 0 5 10 15 20 Outdoor ambient temp F C Outdoor ambient temp F C 2192 X S 2232 X 5 Indoor Unit XH3642 Outdoor Unit CH3642 Indoor temp 22 Indoor 22 F C temp 75 24 21 F C 21 LL eon zx 75 24 2 1 4 65 18 lt 20 el CL 5 ER t 5 19 5 19 EEH 3 o LE gt 18 LER 8 17 S 17 AE 8 16 i 16 15 15 14 23 32 41 50 59 68 14 23 32 41 50 59 68 10 C5 0 5 10 15 20 710 C5 0 5 10 15 20 Outdoor ambient temp F C Outdoor ambient temp F C 2233 X S 2234 X S SM830082 78 1 Specifications Performance Charts 6 Heating Characteristics 1 Operating Current Indoor Unit XH4242 Outdoor Unit CH4242 Operating current characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5096 Indoor fan speed High
60. 2086 M I XH TH UH Type KH Type 5P terminal board 4P terminal board 0 OI OIOIO G DODO 1 2 0102 U1U2 12 Inter unit Inter unit Remote Inter unit Inter unit Remote power wiring control wiring controller wiring control wiring power wiringontroller wiring 2087 MI 2103 M I 2088 MI 2103 M I SM830082 1 105 2 Basic wiring diagram for group control This diagram shows when several units max 8 are controlled by a remote controller In this case a remote controller can be connected at any indoor unit 1 Specifications Indoor Unit Outdoor Unit 1 R C A he PCB 1 S2 BLK lt C Address on the PCB 1 S2 power wiring single phase 2 2 NM 230 208V Si Inter unit control wiring 2 9 L1 Low voltage 0 03 2 Eo Power supply ah SE single phase COD Qr E 0 O ot 230 208V BLK 2 2 i Ground Remote controller Option D qD Indoor Unit Outdoor Unit Inter unit a D 1 A 5 R C Address on the PCB 2 S2 BLK power wiring 2 single phase 7 2 2 N VJ 230 208V Si goe Inter unit gt control wiring 0 Ui 2 L1 Low voltage U2 02 00 o Bod Supply
61. 3 13 0 Full load conditions kW 0 08 0 07 0 18 0 17 2 45 2 42 2 71 2 66 Starting amperes A 1 1 1 1 66 60 68 62 Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 4 0 4 0 9 0 9 10 4 11 6 11 7 12 9 Rating conditions kW 0 08 0 07 0 18 0 17 2 29 2 26 2 55 2 50 A 0 4 0 4 0 9 0 9 11 4 11 8 12 7 13 1 Full load conditions kW 0 08 0 07 0 18 0 17 2 55 2 44 2 81 2 68 Starting amperes A 1 1 1 1 66 60 68 62 Cooling Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 115 F DB Heating Rating Conditions Indoor Air Temperature 70 F DB 60 F WB Outdoor Air Temperature 47 F DB 43 F WB Full Load Conditions Indoor Air Temperature 80 F DB F WB Outdoor Air Temperature 45 F DB 35 F WB SM830082 110 Indoor model TH3642 Outdoor model CH3642 1 Specifications Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 7 0 7 1 8 1 8 12 6 13 2 15 1 15 7 Rating conditions kW 0 16 0 14 0 36 0 34 2 83 2 69 3 35 3 17 A
62. 32 Suspension bolt pitch gt 43 36 N co 9 CR 3 ol T IL n Em LE i uu o 9 p by o m o S Nn pr Es I i 6 518 Las 13 32 1 3 16 EEN 31 32 24 1316 3 11 82 Me CR N ete gt x H N Ww cue Js 47 32 LENEN a gt Le En KR 10 1 4 15 16 2 T Li Ze NI ic o Air outlet E 2 5 duct 1 QN m I 242 e n FI FI als LA CTT o eo lo I ES h V x m I 4 8 ria 3 N c p 8 it Mer 3 E 4 5 8 df 4 z JEN 28 N o LO E GE 8 b All M eo 6 iL 5 8 F 8 NS if W Zu y NS Y o at i Y 4 n ION L 22 27 32 1 32 i l T RE 8 Dimension inch CD Refrigerant liquid line 93 8 narrow tube 2 Refrigerant gas line 23 4 wide tube Upper drain port O D 1 1 4 Bottom drain port O D 1 1 32 5 Suspension lug Power supply inlet conduit size 1 2 Fresh air intake port 5 29 32 Flange for the flexible air outlet duct 27 7 8 8 Tube cover Electrical component box Flange for the air intake duct option or field supply 1915 U I SM830082 1 4 Dimensional data Indoor unit Conceal
63. 68 F ORG GRY 46 YEL GRY RED GRY 46 BLK GRY Valve body HKV 30D27 Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch 3 12 7 Face area 3 32 0 308 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 19 1 2 Major Component Specifications A Indoor Unit MODEL No 1 Specifications KH2442 Source 230 208 V 1 phase 60 Hz Remote controller Option RCS BH80UA WL Controller P C B Ass y CR TH2442 Control circuit fuse 250V 3A Fan Cross flow Number Dia and length 1 O D 4 1 3 110 L39 990 Fan motor Model UF4Q 31A6P Source 230 208 V 1 phase 60 Hz No of pole r p m 230 V High 4 1 276 Nominal output 30 Coil resistance Ambient temperature 68 F BRW WHT 1972 ORG YEL 59 1 WHT VLT 414 YEL PNK 488 VLT ORG 222 Safety device Operating temperature 248 9 171 27 Run capacitor 440 V 1 8 uF Electronic refrigerant control valve Solenoid control model DKV MOZS582E0 Coil resistance Ambient temperature 68 F ORG GRY 46 YEL GRY 46 RED GRY 46 BLK GRY 46 Solenoid control valve model IKV 24D11 Heat exchanger Coil Aluminum plate fin Copper tube Rows Sun 12 7 Face area
64. 71 32 124 0 35 Indoor grille Package dimensions PNR XHS2432 Shipping weight Shipping volume Cooling Rating conditions Heating Rating conditions Height 4 3 32 104 Width 49 1 2 1 257 Depth 39 11 32 999 22 10 4 6 0 131 DATA SUBJECT TO CHANGE WITHOUT NOTICE Room temperature 80 F DB 67 F WB Ambient temperature 95 F DB 75 F WB Room temperature 70 F DB 60 F WB Ambient temperature 47 F DB 43 F WB Low temp conditions Room temperature 70 F DB 60 F WB Ambient temperature 17 F DB 15 F WB SM830082 1 3 1 1 Unit Specifications MODEL No Indoor Unit 1 Specifications Outdoor Unit POWER SOURCE XH4242 CH4242 230 208 V 1 Phase 60 Hz PERFORMANCE Cooling Heating Capacity BTU h 42 000 40 000 44 000 28 000 42 000 26 000 Moisture removal High Pints h 14 4 14 0 Air circulation H M L cu ft min 1 050 840 720 S E E R H S P F BTU Wh 10 4 10 4 7 0 7 0 ELECTRICAL RATINGS Voltage rating VAC 230 208 230 Available voltage range 187 253 Running amperes 20 6 21 0 21 7 Power input 4 200 4 100 4 450 3 700 Maximum overcurrent protection 45 FEATURES Controls Microprocessor Low ambient control Built in O F Fan speeds Indoor Outdoor 3 an
65. 74 and 75 IV 41 SM830082 4 Service procedures 11 PCBs and Their Location PCB CR TH2442 FOR INDOOR UNITS CN77 GRN LM CN85 BLU DPH CN74 WHT 852 CN78 BLU DP N N F2 Fuse 250V Te F1 Fuse 250V CN81 GRY T20 L CN73 BLK 851 5 dl CN80 RED 26H I CNDS WHT CN83 WHT EM OC OC CN201 WHT FAN DRIVE CNS WHT LS EDE CN6 RED EXCT RED FS N D80 LED POW H CN71 YEL T10 RN e E P ROM CN31 RED COIL E1 CN33 YEL ROOM TEMP _ I CN70 WHT T6 el L CN91 WHT CRV L CNS WHT TEST L CN3 WHT TMX60 L CNS WHT CHK CN32 BLK COIL E2 1 CN30 BRN COIL E3 rel P CN35 GRN PNL ici T DCD ed ed Q c LF IC CN44 BRN EMG CN WHT DISP 1 O ZZ CN40 BLU OC oT SI Sk A D D O 5 n Q Fuse 0 5A N QOO E N M Ns 21 CN41 BLU RC CN42 BLU WL 2124_C_S SM830082 IV 42 4 6 PCB CR CH
66. 75 24 4 75 24 o Se DA 65 18 c LT eg 12 9 12 5 o 11 11 AA LAT r1 10 lt LL Og a a 8 set 8 8 14 23 32 41 50 59 68 14 23 32 41 50 59 68 10 5 0 5 10 15 20 10 5 0 5 10 15 20 Outdoor ambient temp F C Outdoor ambient temp F C 2235_X_S 2232_X_S Indoor Unit KH3642 Outdoor Unit CH3642 Indoor 22 Indoor temp temp 22 F C 21 F C 21 75 24 lt 20 70 21 lt 75 24 lt 20 65 18 LAT 70 21 EFS 9 19 Hus 5 CLEA 65 18 5 19 Jw S 48 Cl S 18 2 LEE gt p S 17 eA S 17 Leff a Ip 16 E 15 15 14 23 32 41 50 59 68 14 23 32 41 50 59 68 10 5 0 5 10 15 20 10 5 0 5 10 15 20 Outdoor ambient temp F C Outdoor ambient temp F C 2196_X_S 2197_X_S SM830082 83 1 9 Performance Charts Cooling Characteristics 2 Operating Pressure D Indoor Unit 24 Type Outdoor Unit CH2442 High Pressure 1 Specifications High pressure characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5095 Indoor fan speed High 230V 208V Outdoor fan speed Low High 340 320 300 280 260 240 220 180 a 160 59 68 77 86 95 104 15 20 25 30 35 40 A NN Discharge pressure psig
67. 8 21 0 21 9 23 8 24 6 Full load conditions kW 0 2 0 17 0 36 0 34 4 41 4 33 4 97 4 84 Starting amperes A 2 2 2 2 131 131 134 133 9 6 Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 V 208 V 230 V 208 V 230 V 208 V 230 V 208 V A 0 9 0 8 1 8 1 8 18 9 19 6 21 6 22 2 Rating conditions kW 0 19 0 16 0 36 0 34 3 9 3 85 4 45 4 35 A 0 9 0 8 1 8 1 8 21 2 22 8 23 9 25 4 Full load conditions kW 0 19 0 16 0 36 0 34 4 48 4 52 5 03 5 02 Starting amperes A 2 2 2 2 131 131 133 9 133 8 Cooling Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 115 F DB Heating Rating Conditions Indoor Air Temperature 70 F DB 60 F WB Outdoor Air Temperature 47 F DB 43 F WB Full Load Conditions Indoor Air Temperature 80 F DB F WB Outdoor Air Temperature 45 F DB 35 F WB SM830082 109 1 Specifications Indoor model TH2442 Outdoor model CH2442 Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 4 0 4 0 9 0 9 9 4 10 0 10 7 11 3 Rating conditions kW 0 08 0 07 0 18 0 17 2 09 2 04 2 35 2 28 A 0 4 0 4 0 9 0 9 11 0 11 7 12
68. AIR FLOW RATE CONDENSER AMBIENT TEMP 7200 TC WE Be 2 62 2 96 3 3 22 940 21 170 20 140 59 25 620 23 850 22 820 15 0 28 420 26 650 25 620 31 100 30 270 29 060 27 040 32 420 30 850 29 060 27 040 33 630 32 130 30 530 28 700 2 66 19 550 18 820 18 050 63 i 17 2 19 030 21 710 24 520 24 800 24 800 26 720 3 35 16 280 18 960 21 770 24 450 26 720 28 450 3 38 13 340 16 020 17 190 19 870 22 670 25 360 28 040 30 300 3 04 14 120 22 230 20 730 25 040 23 530 27 720 26 220 28 900 TC 34 910 33 540 32 000 2 69 16 150 15 530 14 860 67 f 19 4 18 830 17 540 16 810 20 340 19 610 18 830 22 290 21 510 TC 36 770 35 490 34 110 32 610 30 940 71 21 7 21 320 35 010 31 970 2 77 3 48 75 SHC 10 870 9 800 23 9 SHC 13 680 12 600 SHC 16 360 15 290 SHC 19 040 17 970 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air 80 FDB 67 FWB SM830082 70 1 Specifications 1 8 Heating Capacity Indoor entering air temperature 70 F T T T 120 T T 100 80 Heating capacity 96 60 10 20 30 40 50 60 Outdoor ambient temp F DB at 75 RH 2182 X S SM830082 71 1 9 1 Specifications
69. Auto address operation is executed by pressing the A ADD S1 button of out door unit s PCB usually For your convenience it can be executed by remote controller also Press the and buttons at the same time for more than 4 seconds Fig IV 7 p Set CODE No A1 with RI button In this mode the auto address operation is executed at each R C Refrigerant Circuit line one by one 1 _ p lt _ lt REMOTE CONTROLLER o DOKS Ceo C ER 5 C C E UNIT A a SET ded v Fb Fig IV 7 icd Select R C No which you want to execute the auto address operation with button Press the button The auto address operation will start CODE No changes from flashing to ON state If an error occurs during operation the alarm message will be displayed Check and re move the cause If you want to stop the operation press the button then the unit stands in waiting mode Press the button again If the automatic address operation finishes the display will disappear Execute the operation of the other R C line in the same way by following the above steps to SM830082 IV 25 4 Service procedures F Confirm and change the indoor unit address Ref Fig IV 8 IV 9 The purpose of the above function is to let you confirm the indoor unit address after the auto address operation and change the indoor unit address if
70. Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB 27 190 39 120 2 66 11 650 15 420 19 020 22 620 SM830082 65 1 Specifications Indoor Unit UH3642 Outdoor Unit CH3642 208V 1 phase 60Hz RATING CAPACITY 33 000 BTU h AIR FLOW RATE 950 CFM CONDENSER AMBIENT TEMP m EN 23 9 29 4 35 0 40 6 46 1 na 59 15 0 TC 27 560 ci 3 35 17 510 63 20 800 17 2 27 420 26 710 25 960 25 130 24 240 30 710 30 000 29 250 28 410 27 520 34 000 33 130 31 480 29 600 27 560 16 680 13 950 19 960 17 230 23 400 20 670 26 690 23 960 29 980 27 240 37 920 36 600 35 180 33 630 31 910 5 43 71 21 7 TC 36 000 34 580 33 000 31 250 29 340 3 38 67 19 4 12 670 10 420 15 960 13 710 19 400 17 150 22 690 20 430 25 970 23 720 38 680 32 970 2 31 3 48 75 11 670 9 740 23 9 15 100 13 170 18 390 16 460 21 680 19 750 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air 80 FDB 67 FWB SM830082 66 1 Specifications Indoor Unit KH2442 Outdoor Unit CH2442 e 230V 1 phase 60Hz RATING CAPACITY 22 000 BTU h AIR FLOW RATE 540 CFM CONDENSER AMBIENT TEMP FCC 23 9 29 4 35 0 40 6 46 1 TC NENNEN EIL ze um ume ee um suc c
71. FAN SPEED HIGH HIGH ROOM AIR TEMP 80 F 68 F LOUVER ANGLE 7 54 COOLING HEATING 217TI SM830082 1 97 1 12 Air throw distance chart Wall Mounted Type MODEL KHS2442 Axis air velocity ft sec Vertical distance ft MODEL KHS3642 Axis air velocity ft sec Vertical distance ft 20 1 Specifications Horizontal distance ft 25 30 2121 K S COOLING HEATING FAN SPEED HIGH HIGH ROOM AIR TEMP 80 F 70 F FLAP ANGLE 0 22 5 45 54 67 5 Horizontal distance ft 15 20 2122_K_S COOLING HEATING FAN SPEED HIGH HIGH ROOM AIR TEMP 80 F 70 F FLAP ANGLE 0 22 5 45 45 67 5 SM830082 1 Specifications 1 13 Installation Instructions Tubing Length Refrigerant tubing between the indoor and INDOOR Tubing length L outdoor units should be kept as short as UNIT possible Select and decide the installation location so that the length of the refrigerant tubing will be Elevation RES within the limits given in Table 1 10 OUTDOOR UNIT LI VC M y NM FEST 0711 MI Fig 1 1 Table 1 10 Models CH2442 cH3642 CH4242 Tubing Data Tubing size Narrow tube in mm 1 4 6 35 3 8 9 52 outer dia Wide tube in mm 3
72. H 0 5 seconds Operation order Outdoor fan Low fan speed L 0 5 seconds 4 way valve 0 5 seconds Compressor 0 5 seconds SM830082 IV 44 4 Service procedures 13 TMX60 pins When shorting TMX60 pins on the indoor and outdoor PCBs operations shown on the above table will be per formed on each indoor and outdoor unit Use TMX60 pins to perform a quick check When checking pin operation stop the indoor and outdoor units with the remote control unit B Shorting CK L or CK H pin of the outdoor PCB When shorting the cooling pin CNS with normal operation Relay RY3 is turned ON for 3 seconds The outdoor fan motor operates at the LL fan speed Relay RY4 is turned ON for 3 seconds The outdoor fan motor oprates at the H fan speed Turn ON relay RY2 under the above condition The magnet switch 520 turns ON X It will take about 18 seconds before cooling operation begins Shorting the heating pin CN9 with normal operation Relays RY3 and RY4 are turned ON for 3 seconds The outdoor fan motor operates at the H fan speed Relay RY3 is turned ON for 3 seconds The outdoor fan motor operates at the LL fan speed Turn ON relay RY2 under the above conditions The magnet switch 52C turns ON If relay RY1 is turned ON the 4 way valve 20S turns ON X It will take about 18 seconds before heating operation begins The outdoor unit operates independently regardless of the indoor unit s ope
73. MED or LO When set at AUTO the indoor unit fan speed will be automatically adjusted to the room temperature as the two charts shown below A Cooling ROOM TEMP deg 4 2 1 SET TEMP r gt INDOOR FAN SPEED H H High L Low M Middle 1923 M S Fig 4 Chart Explanations and notes Q When the fan speed changes it keeps the speed step for at least 3 minutes even if the temperature changes to another speed step during the time B Heating t ROOM TEMP deg SET TEMP INDOOR FAN SPEED H High L Low M Middle 1924_M_S Fig 5 Chart Explanations and notes Q When the fan speed changes it keeps the speed step for at least 1 minute even if the temperature changes to another speed step during the time SM830082 Il 5 2 Processes and functions 2 4 Outdoor Fan Speed Control To optimize the performance of air conditioner the outdoor fan speed is selected automatically according to the outdoor temperature Note that in both Cooling and Heating modes the fan comes on at first at high speed H mode for 5 seconds Since outdoor conditions sometimes make it difficult for the fan to start this sudden surge of power may be necessary The outdoor fan operates H mode for 3 minutes after the compressor stops excluding defrosting operation period Charts below show how the outdoor fan speed changes with the change
74. Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air 80 FDB 67 FWB SM830082 60 1 Specifications Indoor Unit TH4242 Outdoor Unit CH4242 e 230V 1 phase 60Hz RATING CAPACITY 42 000 BTU h AIR FLOW RATE 900 CFM CONDENSER AMBIENT TEMP __ co TC L WEE EE 29 360 26 920 59 32 530 30 090 15 0 35 850 33 410 39 020 37 860 36 580 42 190 40 490 38 140 44 140 42 170 40 070 3 65 25 230 24 220 23 160 63 17 2 25 510 28 690 32 000 35 170 35 490 37 670 24 000 27 170 30 490 32 550 32 550 35 070 21 990 20 740 23 920 27 230 30 400 33 580 37 340 26 340 25 160 29 650 28 470 51 650 34 820 17 230 20 410 23 720 26 890 30 070 40 610 21 080 18 300 24 260 21 470 24 790 27 960 31 130 TC 48 260 46 580 44 770 42 800 ERE 841 17 020 16 300 15 540 14 720 71 21 7 45 820 44 020 42 000 39 770 67 19 4 13 840 17 010 20 320 23 500 26 670 41 960 20 190 19 470 17 890 23 510 22 790 21 210 26 680 25 960 24 380 29 850 29 130 27 550 49 220 47 630 44 020 317 3 47 75 15 640 15 030 13 680 23 9 18 960 18 350 16 990 22 130 21 520 20 170 25 300 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are 24 690 23 340 Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB 12 930 16 240 19 410 22 590
75. Remote Controller From the remote controller you can control both the operation and settings of the unit as well as perform several useful service checks This section explains how to use the remote controller on the following items from A to A Use the test run procedure B Check the sensor temperature readings C Accessing the service problem history D Check the remote controller itself for correct operation E Excute the auto address operation F Confirm and change the indoor unit address G Change the shift temperature in heating mode H Set the indoor unit address 1 Change the period of the filter timer A Use the test run procedure After holding down the remote controller button for 4 seconds or more press the button While the test is running TEST shows on the LCD display In TEST mode the temperature cannot be adjusted Do not use this mode except during test run operation p Use TEST mode in either heating or cooling operation mode NOTE The outdoor unit will not start running for approximately 3 minutes after the power is turned on or the unit is turned off When the unit is not operating normally a code will be displayed on the remote controller LCD Refer to the Table of Self Diagnostic Functions at and take the corrective measures indicated d After completing the test run operation press the button again and check to see
76. SHIFT SET TEMP 4 deg HEATING SELECTION TEMP 6 deg gt HEATING COOLING HEATING 1142 THS I Fig 12 SM830082 Il 11 2 Processes and functions Chart summary and Explanations This chart shows how the Operation Mode COOLING or HEATING is determined by the microprocessor taking the room temperature into consideration It also shows the temperature points at which the cooling or heating mode is switched when the AUTO mode is selected After operation starts the set temperature shifts automatically by 4 deg at cooling and by 4 deg at heating For example if cooling is selected the set temperature changes from 68 F to 72 F The display of the remote controller remains 68 F The change of the operation mode heating to cooling cooling to heating by the change of the room temperature during the operation is as follows Heating to Cooling Room temp gt Shifted temp 1 0 deg Cooling to Heating Room temp lt Shifted temp 2 0deg For example if the room temperature rises above 73 F 72 1 during the cooling operation at the room temperature 68 F set by the remote controller the operation changes to cooling When the room temperature lowers below 63 F 65 2 thereafter the operation changes to heating again In heating operation using the body sensor room temperature control is designed so that room air temp is sensed as 8 deg lower than suctioned air at
77. VAC 60 Hz Coil resistance at 68 F Q 350 10 Contact rated Main 240 35 A Contact rated Auxiliary 240 VAC 3 A Power Relay HH62S Coil rated 240 60 Hz Coil resistance at 77 F 17 2 Contact rated 220 VAC 5A Power Transformer ATR 1650 Rated Primary 220 VAC 60 Hz Secondary 14 V 04 A Capacity 5 6 VA Coil resistance at 73 F WHT WHT 395 5 BRN BRN 2 19 Thermal cut off temperature 266 Thermistor Coil sensor TH6 7 PBC 41E S4 41 536 Coil resistance 14 F 23 7 50 F 9 7 23 F 18 8 68 F 6 5 32 F 15 0 86 F 4 4 41 F 12 1 104 F 3 1 113 F 2 6 Thermistor Comp discharge gas sen PTC 51H 51 Coil resistance 5 194 F 5 1 212 F 3 8 230 F 2 8 248 F 22 266 F 1 7 Solenoid control valve or coil Solenoid control valve V 389100 Solenoid coil LB 59005 Thermistor PTC TDK 101YV Rated Max voltage 400 VAC Max ampere 11 5 A Resistance at 77 F 100238 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 37 1 Specifications 1 4 Dimensional data Indoor unit 4 Way Air Discharge Semi concealed Type 24 Type 10 9 32 8 11 16 Min 2 15 32 ry Min 19 32 91 3 e Y 32 9 32 Ceiling opening
78. area Either continuous 8 minutes or cumulative 60 minutes are required to detect frost in the Frosting range has elapsed 1143 THS I Fig 13 Time Chart for Defrosting 9 1 MINUTE MAX 9 MINUTES 1 MINUTE COMPRESSOR ON ON ON SOLENOID COIL 4 WAY VALVE ON ON OUTDOOR FAN H OR L ON ON INDOOR FAN IOFF SET SPEED OFF OR LL OR LL INE STANDBY APPEARS x Defrosting Release of Start Defrosting ous 14 Cold Draft Prevention may operate occasionally Il 13 Q During the defrost cycle STANDBY appears on the remote controller SM830082 2 Processes and functions 2 11 4 Way Valve Solenoid Control The basic function of the 4 way valve is to direct the refrigerant in the correct direction according to the Operation Mode COOLING or HEATING selected The following two charts show conditions of the controls and functions listed in the left hand column when the solenoid is ON or OFF Chart A on this page shows the relationships when the temperature control 15 in NORMAL mode and Chart B on the next page shows the relationships when the remote controller is set to AUTO mode A Normal Control Mode POWER SOURCE OFF ON OPERATION BUTTON ON OFF ON MODE COOL COOL BUTTON HEAT HEAT HEAT a2 Le 3 MINUTES TURN ON THERMO OFF
79. line or contact Correct wiring defect between an indoor and outdoor unit s control line 0337 M I Influenced by external noise 7 Symptom LCD on the remote controller is displaying CHECK E08 Duplicate indoor unit address setting Is the setting for the non volatile Correct the setting memory IC on the indoor unit PCB inappropriate If the setting is appropriate F29 is displayed Are there two units with the same address No Influenced by external noise 0338 M I 8 Symptom LCD on the remote controller is displaying CHECK E09 Duplicate setting of RCU address switch of remote controllers Are there two remote controllers master slave installed with both remote controllers set as masters No Replace the remote controller Correct the setting 0339 M I SM830082 IV 12 4 Service procedures 9 Symptom LCD on the remote controller displays CHECK P01 Indoor fan protection thermostat operation warning Correct the connection Is the indoor fan wire winding protection thermostat 4981 off Yes Replace the indoor unit PCB Replace the indoor fan 2098 THS I SM830082 IV 13 4 Service procedures 10 Symptom LCD on the remote controller displays CHECK P02 Compressor outdoor fan protection thermostat operation warning power supply voltage abnormality Is the power supply to the outdoor Check the pow
80. m the shift temp can be set with remote controller from 0 to 10 deg F from 0 to 20 deg F gt manually as follows Press the 27 buttons at same time for more than 4 seconds D In case of group control if you want to change all units in group control collectively pro ceed next step remaining ALL displayed If you want to change a unit individually select the indoor unit address UNIT No with button Select the CODE No 06 with a w RI button d Choose the shift temp with a e button Press the button CODE No 06 SET DATA and change from flashing to ON state If you made a mistake press the button Finally press the 2 button REMOTE CONTROLLER o OQRORS CeCe 1933_M_I Fig IV 10 SM830082 IV 27 4 Service procedures H Set the indoor unit address Ref Fig IV 11 IV 12 This function is usable if the auto address operation is not available Indoor unit address can be set one by one by remote controller in such case NOTE 1 In case of group control branch wiring for group control should be removed temporarily 2 In case of remote controllerless system remote controller should be connected with the indoor unit temporarily Set the No of R C address p Press the and buttons at the same time for more than 4 seconds Set the CODE No 12 to set the No o
81. noise and other factors 2 The test results were obtained from an anechoic room NOTE To evaluate Noise level the maximum number of the measured OCTAVE BAND SOUND PRESSURE LEVEL is used Read the number on each BAND CENTER FREQUENCIES horizontal axis ranging from 63 Hz to 8000 Hz and select the maximum value vertical axis among them SM830082 94 1 Specifications 1 11 Increasing the Fan Speed Electrical component box If external static pressure is too great due to long 72 extension of ducts for example the air flow volume Jumper cable may drop too low at each air outlet This problem may be solved by increasing the fan speed using the Fan motor socket following procedure At shipment Jumper cable installed 2159 M I 1 Remove 4 screws on the electrical component 12 Type 18 box and remove the cover plate 130 lt od 1 lt 2 Disconnect the fan motor sockets in the box 0 5 L 10 5 ES Tak he jumper cabl k h 3 Take outt e un per cable sockets at bot 100 0 4 9 100 10 4 ends clamped in the box M hi 8 E 2 S 4 Securely connect the jumper cable sockets E amp 0 3
82. that TEST is no longer displayed on the remote controller LCD The remote controller is equipped with a timer that terminates test run operation after 60 minutes in order to prevent con tinuous test run operation DORS 2076_M_I SM830082 IV 21 4 Service procedures B Check the sensor temperature readings The air conditioner has thermo sensors which are used to control the unit Each sensor has an address which is made up of the indoor unit address and the sensor address The indoor unit address is used only when several units are hooked up to one remote controller group control If there is only one unit made up of one indoor and one outdoor unit then only the sensor address should be put in as shown in the procedure below Follow this procedure to display the temperature of each sensor On the remote controller press both 4 and buttons at the same time for more than 4 seconds Ref Fig IV 4 p The UNIT No the address and temperature of the sensors instead of its usual informa tion will flash on the display LI Following example shows the UNIT No Indoor unit address is fixed at 01 01 In case of group control select the UNIT NO Indoor unit address which you want to check with button Each time you press the a w g button you can select a different sensor and the display shows the sensor address and temperature as shown Fig IV 4
83. 1 2 3 according to the No of outdoor units Outdoor control PCB CN006 2P Black Refrigerant circuit address factory setting 0 Refrigerant circuit address black AN A Refrigerant circuit address 2P DIP switch green or Blue 10 20 position position S2 OFF side ON ON side T 83 A ADD S1 Automatic address setting start button 1 2 Used for central control link system and group control Normally not used 2093 C I R C address R C address REG caddies S3 2P dip switch green or blue S2 Rotary switch Black ON ON side 00 auto address ATN 0 when shipped from factory Both OFF d CZ Set to 0 OFF side SM830082 IV 37 7 Automatic Address Setting Method For group control and central control with multiple outdoor units Carry out automatic address setting with the 4 Service procedures 8 Displaying Indoor Outdoor Unit Com bination Numbers Display the indoor outdoor unit address after auto remote controller 1 1 All auto address operation D Q Press the and C4 buttons at the same time for more than 4 seconds Press the button after confirming the CODE No AA CODE No AA All Auto address operation After addresses are automatically set in order for the outdoor units from No 1 to No 30 the system returns to the normal stopped sta
84. 10 15 20 Outdoor ambient temp F C Outdoor ambient temp F C 2194_X_S 2195_X_S Indoor Unit UH3642 Outdoor Unit CH3642 Indoor temp 22 Indoor 25 F C temp LIA 75 24 5 F C 21 70 21 75 24 78 Lrt H 65 18 lt JA LR 70 21 lt 20 EH g 19 9 5 19 Leck 5 LAM E E 5 18 LEES 9 18 HA E LA B 17 17 o 1 16 6 16 15 15 14 23 32 41 50 59 68 14 23 32 41 50 59 68 10 5 0 5 10 15 20 710 5 0 5 10 15 20 Outdoor ambient temp F C Outdoor ambient temp F C 2233 X S 2234 X S SM830082 82 1 9 1 Specifications Performance Charts 6 Heating Characteristics 1 Operating Current Indoor Unit KH2442 Outdoor Unit CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5096 Indoor fan speed High Indoor Indoor temp temp 15 F 14 F C T
85. 10 18 1 20 0 N BEES N A AXIS AIR VELOCITY x 77 gt gt AXIS AIR VELOCITY ft sec VERTICAL DISTANCE ft 2111 XI Model 36 42 Type HORIZONTAL DISTANCE 0 3 7 10 13 17 20 AIR VELOCITY AXIS AIR VELOCITY ft sec VERTICAL DISTANCE ft 2112 X I h LOUVER ANGLE 20 in Cooling mode LOUVER ANGLE 60 in Heating mode Condition Fan Speed Hi Room air temp 80 C DB in cooling mode 68 C DB in heating mode SM830082 96 1 Specifications 1 12 Air throw distance chart Ceiling Mounted Type Model 24 Type HORIZONTAL DISTANCE ft 0 3 7 10 13 17 20 23 26 29 33 7 0 AXIS AIR VELOC Pd ITY AXIS AIR VELOCITY ft sec VERTICAL DISTANCE ft N E 2115 TI Model lt D HORIZONTAL DISTANCE 3 7 10 13 17 20 23 26 29 33 o N E EN AXIS AIR VELOCITY ft sec VERTICAL DISTANCE ft 29 N 2116 TI Model 42 Type HORIZONTAL DISTANCE ft 0 3 7 10 13 17 20 23 26 29 33 S 0 Be gt o 3 XIS AIR VELOCITY FZ Ok 7 o9 10 gt a E 13 n 2 t 27 17 COOLING HEATING
86. 140 32 440 30 500 28 390 17 2 33 890 33 140 32 350 30 500 28 390 17 120 16 500 15 810 15 060 14 250 20 300 19 670 18 980 18 230 17 420 23 610 22 980 22 290 21 550 20 740 26 780 26 160 25 470 24 720 23 910 29 960 29 330 28 640 27 890 27 080 TC 39 070 37 710 36 240 34 650 32 880 o B 13 220 12 690 12 120 11 520 10 850 21 7 23 9 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB 59 63 67 71 75 0 2 37 090 35 630 34 000 32 200 30 230 19 4 7 9 SM830082 59 1 Specifications Indoor Unit TH3642 Outdoor Unit CH3642 208V 1 phase 60Hz RATING CAPACITY 33 000 BTU h AIR FLOW RATE CONDENSER AMBIENT TEMP F C 23 9 29 4 35 0 40 6 46 1 TC eee SHC 25 580 27 560 Cl 3 35 16 870 19 740 22 740 25 600 27 560 TC 29 340 3 38 16 590 15 960 13 730 19 460 18 830 16 600 22 460 21 830 19 600 25 320 24 700 22 470 28 190 27 560 25 330 37 920 36 600 31 910 2 27 2 49 3 43 13 020 12 490 10 660 15 890 15 360 13 530 18 890 18 350 16 530 21 750 21 220 19 390 24 620 24 090 22 260 38 680 37 420 32 970 2 31 2 53 3 48 11 990 11 530 9 970 14 980 14 530 12 960 17 850 17 390 15 830 20 720 20 260 18 700 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are
87. 15 320 14 800 14 240 13 630 SHC 17 700 17 220 16 700 16 140 15 530 19 600 19 120 18 600 18 040 17 430 7 700 9 600 11 590 13 490 15 390 TC 28 130 27 220 26 260 25 150 23 980 2 63 23 9 6 17 6 19 21 3 7 71 75 i 27 580 26 620 25 580 24 460 23 210 2 59 21 7 j Suc 7 180 SHC 9 160 SHC 11 070 suc 12 970 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h Cl Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB SM830082 63 1 Specifications Indoor Unit UH2442 Outdoor Unit CH2442 208V 1 phase 60Hz RATING CAPACITY 23 400 BTU h AIR FLOW RATE 600 CFM EVAPORATOR CONDENSER ENT TEMP F C AMBIENT TEMP F C WB 75 85 95 105 23 9 29 4 35 0 40 6 46 1 6 23 700 22 560 18 140 1 75 2 56 16 860 16 260 14 050 59 j 18 930 j 15 0 21 090 23 150 23 700 24 590 1 77 14 280 63 16 340 17 2 18 500 20 570 22 630 18 330 16 120 20 490 18 140 22 560 18 140 22 560 18 140 1 94 lt 13 750 11 920 15 810 13 990 17 970 16 150 20 040 18 210 23 490 22 320 20 990 19 540 22 100 21 550 20 940 19 540 N o 25 530 24 520 20 800 1 79 1 96 2 63 11 680 11 230 9 660 67 13 740 13 300 11 720 19 4 15 900 15 460 20 040 19 590 19 110 18 580 18 010 13 330 12 960 12 560 12 130 11 660 15 400 15 020 14 620 14 190 13 7
88. 16 0 36 0 34 3 43 3 41 3 99 3 91 Starting amperes A 1 1 2 2 95 86 98 89 6 Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 7 0 6 1 8 1 8 15 7 16 9 18 2 19 3 Rating conditions kW 0 16 0 12 0 36 0 34 3 33 3 29 3 85 3 75 A 0 7 0 6 1 8 1 8 14 2 15 6 16 7 18 0 Full load conditions kW 0 16 0 12 0 36 0 34 3 16 3 21 3 68 3 67 Starting amperes A 1 1 2 2 95 86 98 89 Cooling Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 115 F DB Heating Rating Conditions Indoor Air Temperature 70 F DB 60 F WB Outdoor Air Temperature 47 F DB 43 F WB Full Load Conditions Indoor Air Temperature 80 F DB F WB Outdoor Air Temperature 45 F DB 35 F WB SM830082 108 1 Specifications Electrical characteristics Bi Electrical Data Indoor model XH4242 Outdoor model CH4242 Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 V 208 V 230 V 208 V 230 V 208 V 230 V 208 V A 1 0 0 9 1 8 1 8 17 8 18 3 20 6 21 0 Rating conditions kW 0 2 0 17 0 36 0 34 3 64 3 58 4 2 4 09 A 1 0 0 9 1 8 1
89. 199 12 900 SHC 14 620 TC 23 380 22 271 SHC 7 170 SHC 8 960 SHC 10 670 SHC 12 390 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h Compressor Input Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB SM830082 52 1 Specifications Indoor Unit XH3642 Outdoor Unit CH3642 230V 1 phase 60Hz RATING CAPACITY 34 500 BTU h AIR FLOW RATE 980 CFM CONDENSER TC ee IIS 37 640 36 160 34 500 32 670 30 670 19 4 17 450 16 820 16 130 15 380 14 570 20 820 20 190 19 500 18 750 17 940 24 340 23 710 23 020 22 270 21 470 27 710 27 080 26 390 25 640 24 840 31 080 30 450 29 760 29 010 28 210 SHC TC 40 430 39 120 37 740 36 160 34 470 o 23 9 67 71 75 SHC 12 270 11 820 11 350 10 810 10 250 SHC 15 800 15 340 14 870 14 330 13 770 SHC 19 170 18 710 18 240 17 700 17 140 SHC 22 540 22 080 21 610 21 070 20 510 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB 4 TC 39 640 38 260 36 780 35 160 33 360 o 21 7 9 SM830082 53 1 Specifications Indoor Unit XH3642 Outdoor Unit CH3642 208V 1 phase 60Hz RATING CAPACITY 33 500 BTU h AIR FLOW RATE 880 CFM CONDENSER AMBIENT TEMP FCO WB 75 85 105 115 U 7 e en co vs ven TC 3
90. 2 34 1 Specifications 1 3 Other Component Specifications B Outdoor Unit MODEL No CH2442 Compressor Motor Magnetic Contactor FC 1UL Coil rated 240 VAC 60 Hz Coil resistance at 77 F Q 580 15 Contact rated Main 230 VAC 20 A Contact rated Auxiliary 230 Power Relay HH62S Coil rated 240 VAC 60 Hz Coil resistance at 77 F 17 2 Contact rated 220 VAC 5 A Power Transformer ATR 1650 Rated Primary 220 VAC 60 Hz Secondary 14 V 0 4 A Capacity 5 6 VA Coil resistance at 73 F WHT WHT 395 5 BRN BRN 2 19 Thermal cut off temperature 266 Thermistor Coil sensor TH6 7 PBC 41E 54 PBC 41E S26 Coil resistance 14 F 23 7 23 F 18 8 e 32 F 15 0 41 F 12 1 50 F 97 68 F 6 5 86 F 44 104 F 3 1 113 F 2 6 Thermistor Comp discharge gas sensor TH8 PTC 51H S1 Coil resistance kQ 194 F 5 1 212 F 3 8 230 F 2 8 248 F 22 266 F 1 7 Solenoid control valve or coil Solenoid control valve V 389100 Solenoid coil LB 59005 Thermistor PTC 101YV Rated Max voltage 400 VAC Max ampere 11 5A Resistance at 77 F 100238 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 35 1 Specif
91. 2 Ceiling opening L 13 5 16 1 3 16 33 27 32 29 13 16 Suspention bolt pitch 4 8L 19 11 16 e e E I d A 1 D e 2 o 9 x IER gt 8 i BEE 8 8 HBE A Sg E 5 T Q 2 Xl 1 E at e En 9 19 32 e is 1 5 8 a 9 2 3 8 Dimension inch 5 C Air intake grille Air outlet G Refrigerant liquid line 3 8 9 Refrigerant gas line 3 4 5 Drain connection Power supply entry conduit size 1 2 m E For discharge duct FSI Suspention bolt mounting 9 For fresh air intake 1918 X S SM830082 39 1 4 Dimensional data Indoor unit Ceiling Mounted Type 1 Specifications 24 Type 6 3 32 3 15 16 12 7 32 N N N Lg mn SEI 59 2 11 132 3 e Qui i ir 77 L Ed i T A 3 3 8 5 3 4 11 1 32 2 3 9 32 Holes in the rear side View from front Hole for wall through piping View from front 9 7 8 d Air intake 2 ft or more N Q gt Er oh 55 2 oy a Hi Hi 5 or 5 3 16 2 25 32 289 JIL N c shr L B E D 48 7 16 Suspension bolt hole pitch
92. 2 80 2 75 Starting amperes A 1 1 1 1 66 60 68 62 6 Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 4 0 4 0 9 0 9 10 4 11 0 11 7 12 3 Rating conditions kW 0 09 0 08 0 18 0 17 2 23 2 20 2 50 2 45 A 0 4 0 4 0 9 0 9 10 8 11 7 12 1 13 0 Full load conditions kW 0 09 0 08 0 18 0 17 2 43 2 40 2 70 2 65 Starting amperes A 1 1 1 1 66 60 68 62 Cooling Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 115 F DB Heating Rating Conditions Indoor Air Temperature 70 F DB 60 F WB Outdoor Air Temperature 47 F DB 43 F WB Full Load Conditions Indoor Air Temperature 80 F DB F WB Outdoor Air Temperature 45 F DB 35 F WB SM830082 107 Indoor model XH3642 Outdoor model CH3642 1 Specifications Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 9 0 8 1 8 1 8 12 7 13 2 15 4 15 8 Rating conditions kW 0 20 0 16 0 36 0 34 2 79 2 70 3 35 3 20 A 0 9 0 8 1 8 1 8 15 4 16 7 18 1 19 3 Full load conditions kW 0 20 0
93. 2442 FOR OUTDOOR UNITS CN013 WHT CK H 12 WHT L CNO011 RED TEST WHT Service procedures CNO023 GRN DISCH CN022 RED C2 WHT JO EF 025 WHT CH H 1 D015 LED POW 34 O CN004 BLU OC 4 8 mie ee CR CH2442 Oo BBBH CN005 BRN EMG pez Loan 2003 Fuse Q Q 125V 0 5A TD CN100 BLK PEN e Cu 45 CN015 YEL 208 En R Rr I 8 a d S 016 BLK 52C 4 CN002 WHT RS miss 25 we O 2002 Fuse 250V CN001 BLU SUP a RED Bei o S001 A ADD CNO21 BLK C1 _ CN026 YEL TMX60 CN007 RED Auto address 5004 BLU Capacity code I 5003 BLU R C address LD I S002 BLK R C address 68PH F001 Fuse 250V IV 43 2178 C I SM830082 4 Service procedures 12 Checking procedure for each PC Board The indoor and outdoor PCBs have functions to check the signal transmission and reception of the serial circuit and to check the microcomputer operation S
94. 3 12 44444444 C 12 1 1 1 1 59 68 77 86 95 104 59 68 77 86 95 104 15 20 25 30 35 40 15 20 25 30 35 40 Outdoor ambient temp F C Outdoor ambient temp F C 1466 X S 1467 X S SM830082 76 1 Specifications Performance Charts Cooling Characteristics 1 Operating Current Indoor Unit KH2442 Outdoor Unit CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5096 Indoor fan speed High Outdoor fan speed Outdoor fan speed Low High Low High 15 T Indoor 15 T Indoor I temp temp 14 F C 14 F C lt 1 lt 13 lt 1 _ 85 30 5 12 85 30 12 i lt 80 27 5 1 80 27 e 24 9 1 75 24 9 1 ZZ 70 21 E 70 21 Z c 8 10 se 0H 8 BER 2 d 8 9 zz 8 9 Tail 8 i 59 68 77 86 95 104 59 68 77 86 95 104 15 20 25 30 35 40 15 20 25 30 35 40 Outdoor ambient temp F C Outdoor
95. 3 700 Maximum overcurrent protection 45 FEATURES Controls Microprocessor Low ambient control Built in 0 F Fan speeds Indoor Outdoor 3 and Automatic control 3 Auto Optional Wired Remote Controller Timer RCS SH80UG 72 hour ON OFF Optional Wireless Remote Controller Timer RCS SH80UA WL RCS BH80UA WL 72 hour ON OFF Air deflection Horizontal Vertical Manual Automatic Air filter Washable easy access Operation sound Indoor Hi Me Lo 47 43 38 Outdoor Hi 56 Refrigerant control Electronic Expansion Control Valve REFRIGERANT PIPING Limit of piping length 165 50 Limit of piping length at shipment i 100 30 Limit of elevation difference A Outdoor unit is higher than indoor unit 165 50 between the two units Outdoor unit is lower than indoor unit 100 30 Refrigerant piping Narrow pipe in 3 8 9 52 Flare type Wide pipe in 3 4 19 05 DIMENSIONS amp WEIGHT Indoor unit Outdoor unit Unit dimensions Height in 9 7 16 240 48 5 8 1 235 Width in 62 1 32 1 575 37 1 32 940 Depth in 26 3 8 670 13 3 8 340 Indoor grille dimensions Height in 12 15 32 317 52 7 32 1326 Width in 66 1 16 1 678 40 1 016 Depth in 31 1 16 789 16 3 8 416 Net weight 90 41 203 92 Shipping weight 104 47 227 103 Shipping volume ft 14 8 0 42 19 8 0 56 DATA SUBJECT TO CHANGE WITHOUT NOTICE
96. 3 940 32 290 30 420 28 310 25 960 2 21 2 41 2 62 2 96 3 3 24 520 23 670 22 730 21 690 20 560 26 750 25 810 24 760 23 630 29 960 29 020 27 980 25 960 32 290 30 420 28 310 25 960 32 290 30 420 28 310 25 960 33 630 31 960 30 050 27 970 2 44 2 66 3 35 19 970 19 200 17 400 23 050 22 270 20 470 26 260 25 490 23 690 29 340 28 560 26 760 32 410 31 640 27 970 35 110 33 500 29 780 2 46 3 38 16 270 14 050 19 350 17 120 22 560 20 340 25 640 23 410 28 710 26 490 37 150 32 390 2 49 3 43 12 570 10 750 15 650 13 830 18 860 17 040 21 940 20 120 25 010 23 190 37 990 33 470 2 53 3 48 11 610 10 060 14 830 13 270 17 900 16 350 20 980 19 420 c 59 27 600 15 0 30 810 33 890 33 940 35 210 2 23 20 720 63 23 790 17 2 27 010 30 080 33 160 18 330 21 400 24 620 27 690 30 050 31 720 3 04 14 840 17 920 21 130 24 210 27 280 34 140 3 08 11 410 14 490 17 700 20 780 23 850 35 110 3 13 10 610 13 830 16 900 19 980 15 590 18 660 21 880 24 950 28 030 35 710 2 73 12 010 15 090 18 300 21 380 24 450 36 650 2 77 11 150 14 360 17 440 20 510 36 550 16 900 67 19 970 19 4 23 190 26 260 29 340 38 490 13 100 71 16 180 21 7 19 390 22 470 25 540 39 260 2 81 75 12 060 23 9 15 280 18 350 21 430 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB
97. 30 17 460 17 090 16 690 16 260 15 800 lt 71 21 7 27 420 23 380 1 84 2 71 75 8 360 6 940 23 9 10 520 9 100 12 590 11 170 14 660 14 340 14 000 13 630 13 230 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input KW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB SM830082 64 1 Specifications Indoor Unit UH3642 Outdoor Unit CH3642 230V 1 phase 60Hz 28 040 25 880 31 330 26 740 31 330 26 740 31 330 26 740 32 910 28 810 3 42 20 360 18 580 23 960 22 180 27 720 25 940 31 320 32 910 34 500 15470 2 57 21 130 24 730 28 490 32 090 34 640 36 160 2 59 N RATING CAPACITY 34 500 BTU R AIR FLOW RATE 1 060 CFM CONDENSER AMBIENT TEMP FC WB 75 85 105 115 TC 34 950 33 260 31 330 26 740 eel 2 32 2 53 2 76 3 36 26 210 25 370 24 440 22 280 59 29 810 28 970 15 0 33 570 32 740 34 950 33 260 34 950 33 260 36 260 34 640 2 34 21 860 63 25 460 17 2 29 230 32 830 36 260 37 640 2 36 17 500 16 890 16 210 15 470 14 680 67 21 100 20 490 19 810 18 280 19 4 24 860 24 250 23 570 28 460 27 850 7i 21 7 26 640 37 740 34 470 2 91 3 55 11 190 10 110 14 950 13 870 18 550 17 470 22 150 21 070 27 710 40 430 2 43 75 12 100 23 9 15 860 19 460 23 060 TC Total Cooling Capacity BTU h SHC Sensible Heat
98. 31 127 OVERLOAD Sep PROTECTION OVERLOAD PROTECTION gt lt gt lt FUZZY CONTROL FUZZY CONTROL ELECTRONIC REF CONTROL VALVE OPEN OPEN START UP que OUTDOOR FM HOR COMPENSATION PTT 1927 THS Fig 10 Chart Explanations and notes This chart shows how the outdoor fan speed and the electronic refrigerant control valve react to coil temperature to keep the indoor heat exchanger coil from overloading When sensor E2 rises above 140 F the electronic refrigerant control valve opens at 50 steps 30 seconds until E2 falls below 138 F Sensor E2 is located in the middle of the indoor unit heat exchange unit When sensor E2 rises above 144 F the control circuit stops the outdoor fan motor till the temp drops to 131 F Fuzzy control controls the electronic refrigerant control valve 9 SM830082 2 Processes and functions 2 8 Discharge Temperature Control Cooling and Heating This function prevents the compressor motor from burnout by overheating 42 Type 24 36 Type 275 239 257 221 239r 203 235 200 DISCHARGE GAS TEMP F 230 194 221 185 OUTDOOR FAN SPEED HORM a HORM COMPRESSOR an ELECTRONIC REF CONTROL VALVE DISCHARGE TEMP OPEN TRIP IS OPERATED 1928 THS I Fig 11 Chart Summary and Explanations
99. 34 3 76 3 71 4 3 4 2 A 0 8 0 7 1 8 1 8 21 0 22 6 23 6 25 1 Full load conditions kW 0 18 0 15 0 36 0 34 4 49 4 49 5 03 4 98 Starting amperes A 1 1 2 2 131 131 133 8 133 7 6 Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 V 208 V 230 V 208 V 230 V 208 V 230 V 208 V A 0 8 0 7 1 8 1 8 19 1 20 0 21 7 22 5 Rating conditions kW 0 18 0 15 0 36 0 34 3 91 3 86 4 45 4 35 A 0 8 0 7 1 8 1 8 21 2 23 6 23 8 26 1 Full load conditions kW 0 18 0 15 0 36 0 34 4 52 4 67 5 06 5 16 Starting amperes A 1 1 2 2 131 131 133 8 133 7 Cooling Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 115 F DB Heating Rating Conditions Indoor Air Temperature 70 F DB 60 F WB Outdoor Air Temperature 47 F DB 43 F WB Full Load Conditions Indoor Air Temperature 80 F DB F WB Outdoor Air Temperature 45 F DB 35 F WB SM830082 I 112 Indoor model UH2442 Outdoor model CH2442 1 Specifications Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 9 0 8 0 9 0 9 9 7 10 4 11 5 12 1 Rating conditions kW 0 18 0 16 0 18 0 17 2 19 2 15 2 55
100. 4 19 05 3 4 19 05 Limit of tubing length ft 165 165 Limit of elevation anra 165 165 difference between Outdoor unit is lower the 2 units than indoor unit 89 190 Max allowable tubing length at shipment ft 100 100 Required additional refrigerant oz ft 0 48 0 537 No additional charge of compressor oil is necessary If total tubing length becomes 100 to 165 ft charge additional refrigerant R22 by 0 48 oz ft If total tubing length becomes 100 to 165 ft charge additional refrigerant R22 by 0 53 oz ft SM830082 99 B SELECTING THE INSTALLATION SITE Indoor Unit AVOID areas where leakage of flammable gas may be expected places where large amounts of oil mist exist direct sunlight 6 locations near inverter lamps which may affect performance of the unit 6 locations near heat sources which may affect performance of the unit 6 locations where external air may enter the room directly This may cause sweating on the air discharge ports causing them to spray or drip 6 locations where the remote control unit will be splashed with water or affected by dampness or humidity installing the remote control unit behind curtains or furniture locations where the receiver in the indoor unit is exposed to the inverter lamp light Faulty operation of the unit occurs DO select an appropriate position from which every corner of the room can be unif
101. 40 23 880 22 830 21 660 211 2 59 21 7 9 SM830082 1 57 1 Specifications Indoor Unit TH2442 Outdoor Unit CH2442 208V 1 phase 60Hz RATING CAPACITY 21 600 BTU h AIR FLOW RATE 410 CFM CONDENSER AMBIENT TEMP FCO _ Q es e en TC __ RI ue en EE 14 850 13 530 11 960 59 16 320 15 000 13 430 15 0 17 860 16 540 14 970 19 330 18 700 18 010 17 250 16 440 20 800 20 170 19 480 18 250 16 740 SHC TC 22 700 21 690 20 610 19 380 18 040 Cl 63 17 2 19 4 7 230 8 700 10 240 11 710 13 180 TC 25 320 24 490 23 630 22 640 21 580 o 27i 23 9 67 71 75 4 24 820 23 950 23 030 22 010 20 890 21 7 EI SHC 6 780 SHC 8 290 SHC 9 760 SHC 11 230 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB SM830082 58 1 Specifications Indoor Unit TH3642 Outdoor Unit CH3642 230V 1 phase 60Hz RATING CAPACITY 34 000 BTU h AIR FLOW RATE 900 CFM EVAPORATOR CONDENSER ENT TEMP F C AMBIENT TEMP F C WB 75 85 95 105 es eae e en vo TC O 150 34 440 32 780 30 870 28 730 26 350 34 440 32 780 30 870 28 730 26 350 21 060 20 310 19 520 18 640 17 710 24 230 23 480 22 690 21 810 20 880 27 540 26 800 26 010 25 130 24 190 30 720 29 970 29 180 28 300 27 370 35 730 34
102. 430 19 810 19 230 18 620 21 610 21 030 20 420 26 180 25 150 24 000 2 08 11 960 10 940 67 18 760 19 4 15 640 17 440 19 240 27 580 9 650 71 11 450 21 7 13 330 15 130 16 930 28 130 75 8 850 23 9 10 730 12 530 14 330 12 740 14 620 16 420 18 220 25 580 2 11 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB 17 940 19 740 22 730 2 32 10 360 12 160 14 040 15 840 17 640 24 460 2 35 8 330 10 130 12 010 13 810 15 610 25 150 2 38 7 720 9 600 11 400 13 200 17 230 19 030 21 340 2 55 9 750 11 550 13 430 15 230 17 030 23 210 2 59 7 820 9 620 11 500 13 300 15 100 23 980 2 63 7 290 9 170 10 970 12 770 11 470 13 270 15 150 16 950 18 750 26 620 9 230 11 030 12 910 14 710 16 510 27 220 1 96 8 500 10 380 12 180 13 980 8 790 10 590 12 470 14 270 16 070 26 260 2 14 8 130 10 010 11 810 13 610 to N c N SM830082 1 51 1 Specifications Indoor Unit XH2442 Outdoor Unit CH2442 208V 1 phase 60Hz RATING CAPACITY 23 400 BTU h AIR FLOW RATE EVAPORATOR CONDENSER AMBIENT TEMP F C oo ea ws T 2 09 SHC 14 840 2 12 12 790 2 14 10 690 18 030 14 740 16 450 22 630 2 17 2 67 7 680 9 400 11
103. 5 s 10 3 between the disconnected fan motor sockets in a Y E 50 02 E 50 10 2 step 2 2 HT 2 T m H m HH 5 Place the cable neatly in the box and reinstall H 0 1 I H 10 1 the cover plate L 0 0 0 10 200 300 400 200 300 400 500 Air Flow CFM Air Flow CFM Indoor Fan Performance 1980 U I 1981 U I 24 Type 36 Type 200 0 8 E 5 o Le 150 Ho iz 150 amp 0 6 3 o EIS 10 5 5 0 5 2 9 a S 100 10 4 io 100 0 4 a 5 E ZS M 10 3 0 3 E 5 HT 50 10 2 di 50 0 2 HH HH H 10 1 H 0 1 L L 0 10 0 0 300 500 700 900 500 1000 Air Flow CFM Air Flow CFM 1983 U I NOTE HT Using the booster cable 0 H Atshipment B How to read the diagram The vertical axis is the external static pressure Pa while the horizontal axis represents the AIR FLOW CFM The characteristic curves for H M and L fan speed control are shown The nameplate values are shown based on the H air flow For the 24 type the air flow is 636 CFM while the external static pressure is 49 Pa at H position If external static pressure is too great due to long extension of duct for example the air flow volume may drop too low at each air outlet This problem may be solved by increasing the fan speed as explained above SM830082 95 1 Specifications 1 12 Air throw distance chart 6 4 Way Air Discharge Semi concealed Type Model 24 Type HORIZONTAL DISTANCE ft 7
104. 6 0 34 2 77 2 63 3 35 3 17 A 1 1 1 8 1 8 15 4 16 8 18 2 19 6 Full load conditions kW 0 22 0 2 0 36 0 34 3 45 3 38 4 03 3 92 Starting amperes A 2 2 2 2 95 86 98 89 6 Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 9 0 8 1 8 1 8 15 5 17 18 2 19 6 Rating conditions kW 0 21 0 18 0 36 0 34 3 21 3 24 3 78 3 76 A 0 9 0 8 1 8 1 8 14 7 16 17 4 18 6 Full load conditions kW 0 21 0 18 0 36 0 34 3 32 3 29 3 89 3 81 Starting amperes A 2 2 2 2 95 86 97 9 88 8 Cooling Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 115 F DB Heating Rating Conditions Indoor Air Temperature 70 F DB 60 F WB Outdoor Air Temperature 47 F DB 43 F WB Full Load Conditions Indoor Air Temperature 80 F DB F WB Outdoor Air Temperature 45 F DB 35 F WB SM830082 114 1 Specifications Indoor model KH2442 Outdoor model CH2442 Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 4 0 4 0 9 0 9 9 0 9 6 10 3 10 9 Rating condi
105. 8 77 86 95 104 59 68 77 86 95 104 15 20 25 30 35 40 15 20 25 30 35 40 Outdoor ambient temp F C Outdoor ambient temp F C 2185 X S 1467 X S SM830082 72 1 Specifications Performance Charts Cooling Characteristics 1 Operating Current Indoor Unit XH4242 Outdoor Unit CH4242 Operating current characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5096 Indoor fan speed High Outdoor fan speed Indoor Outdoor fan speed Indoor Low High temp Low High temp 24 F C 1 I 23 23 I 85 30 _ ET 80 27 E 22 85 30 lt 22 A Sg 80 27 zz 75 24 5 21 224 75 24 5 21 E 70 21 7 70 21 5 Zal 22222 9 20 9 20 2 i 2 S 19 22222 19 ETT i L l 2 18 18 17 17 I 59 68 77 86 95 104 59 68 77 86 95 104 15 20 25 30 35 40 15 20 25 30 35 40 Outdoor ambient temp F C Outdoor ambient temp F C 2223 X_S 2224 5 SM830082 73 1 9 1 Specifications Performance Charts Cooling Characteristics 1 Operating Current Indoor Unit TH2442 Outdoor Unit CH2442 Operating current characte
106. 8 9 ota d 5 2 EN 585 e 8 ol 9 4 17 32 EN co En W 10 1 4 15 16 Z NI 6 Q Air outlet 2 S 5 duct flange NT QN es Y r1 m y E 5 4 5 hi P P S ZIS 11 13 32 T 11 12 32 T 10 23 32 L s lt 37 7 8 Air outlet duct flange 35 7 16 39 3 8 42 17 32 Suspension bolt pitch A Y n B ii 22 27 32 31 32 Suspension bolt pitch TT l r 4 1 7 32 Dimension inch Refrigerant liquid line 93 8 narrow tube Use the tube connector 7 9 32 8 Refrigerant gas line 25 8 wide tube 8 Upper drain port O D 1 1 4 Bottom drain port O D 1 1 32 if Suspension lug be Power supply inlet conduit size 1 2 iL Fresh air intake port 25 29 32 i Flange for the flexible air outlet duct 7 7 8 8 Tube cover Electrical component box Flange for the air intake duct option or field supply 3 17 32 lt gt 1914 U I SM830082 42 1 4 Dimensional data Indoor unit Concealed Duct Type o 1 Specifications 3 17
107. CC dh single phase 1 0 oob 230 208V RE m A Ground De Indoor Unit Outdoor Unit Inter unit D 1 R C Address on the PCB 8 52 BLK power wiring gt E single phase 2 K 1 23020847 INDIA Ground l Inter unit 0 control wiring Low voltage 03 G 0 o Power supply lt SE single phase S x 2 o ot 230 208V 2 MEX a AM x Ground Remote controller wirings are wire joint connection 2089_M_I R C Address should be set before turning the power on Auto address setting can be executed by a remote controller automatically Please refer to Automatic Address Setting Method Each successive unit will respond at one second intervals following the order of the R C address when the remote controller is operated 1 106 SM830082 Electrical characteristics Bi Electrical Data Indoor model XH2442 Outdoor model CH2442 1 Specifications Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 6 0 6 0 9 0 9 9 7 10 1 11 2 11 6 Rating conditions kW 0 12 0 11 0 18 0 17 2 15 2 07 2 45 2 35 A 0 6 0 6 0 9 0 9 11 1 12 0 12 6 13 5 Full load conditions kW 0 12 0 11 0 18 0 17 2 50 2 47
108. CT TO CHANGE WITHOUT NOTICE Room temperature 80 F DB 67 F WB Ambient temperature 95 F DB 75 F WB Room temperature 70 F DB 60 F WB Ambient temperature 47 F DB 43 F WB Low temp conditions Room temperature 70 F DB 60 F WB Ambient temperature 17 F DB 15 F WB 1 11 SM830082 1 2 Major Component Specifications A Indoor Unit MODEL No 1 Specifications XH2442 Source 230 208 1 phase 60 Hz Remote controller Option RCS SH80UA WL Controller P C B Ass y CR TH2442 Control circuit fuse 250 VAC 3A Fan Number diameter Turbo 1 17 7 16 443 Fan motor Model SFG6X 41D6P Source 230 208 V 1 phase 60 Hz No of pole r p m 230 V High 6 464 Nominal output 40 Coil resistance Ambient temperature 68 F BRW WHT 1703 ORG YEL WHT VLT 18 1 WHT PNK VLT ORG 432 YEL BLK Safety device Operating temperature 266 174 2 27 Run capacitor 440 V 4 5 uF Electronic expansion valve Coil DKV MOZS726E Coil resistance at 20 C ORG GRY 46 YEL GRY RED GRY 46 BLK GRY Valve body IKV 24D18 Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch 2 14 9 Face area 3 69 0 343 Panel Model No PNR
109. E 2 i zT NAN BENE an 2 Lid 2 gt praz 10 paca S 105 LL 9 6 EA 8 9 8 8 14 23 32 41 50 59 68 14 23 32 41 50 59 68 710 C5 0 5 10 15 20 10 5 0 5 10 15 20 Outdoor ambient temp F C Outdoor ambient temp F C 219 X 5 2193 X S Indoor Unit TH3642 Outdoor Unit CH3642 Indoor temp 22 Indoor 22 F C temp L4 75 24 21 F C 21 5 510 21 22 75 24 ES Ld rL 65 18 20 70 21 20 dd 9 19 eef 65 18 5 19 L lt Li a 1 1 5 PC eee zu 22 LT L 577 seang S 17 Q 2 a g 16 EA 8 16 15 15 14 23 32 41 50 59 68 14 23 32 41 50 59 68 10 5 0 5 10 15 20 10 5 0 5 10 15 20 Outdoor ambient temp F C Outdoor ambient temp F C 2233 X 5 2234 5 SM830082 80 1 Specifications Performance Charts 6 Heating Characteristics 1 Operating Current Indoor Unit TH4242 Outdoor Unit CH4242 Operating current characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5096 Indoor fan speed High Indoor temp 25 e 25 KEE F C LH 75 24 24 24 70 21 L H 75 24 LIET 65 18 23 uw sz LEET Sg
110. INd Sd 20 el eL ep el 6 2 9 2 t vie eji et LHM ala Oo LHM dz Jejoeuuoo N Lya 1d LHM 2 mune n18 jeuiuue uue3 eield 9 ELEN uwa KH2442 TANI 1 SU oun Jewod yun Joopino OL 2141593 e Wall Mounted Type SM830082 Ill 8 3 Electrical data Wall Mounted Type KH2442 Terminal Plate 4P AD EE EE Ou To Outdoor Unit Symbols Description Symbols Description FMI Indoor Fan Motor CR Indoor Controller 49FI Indoor Motor Thermal Protector RCU Remote Control Unit Optional Parts Running Capacitor Fuse Room Thermistor Auto Louver Motor Terminal Plate Power Transformer Connector Auxiliary Relay Terminal Auxiliary Relay Motor Operated Valve Room Thermistor Thermistor Indoor Coil E1 Thermistor Indoor Co
111. LEVEL dB OCTAVE BAND SOUND PRESSURE LEVEL dB 30 30 Q APPROXIMATE 2 APPROXIMATE a THRESHOLD OF a THRESHOLD OF O HEARING FOR S O HEARINGFOR s continuous N I RENG S CONTINUOUS NOISE t KNEE 1 ee NOISE m 1 1 m 1 L F 1 amp 10 10 63 125 250 500 1000 2000 4000 8000 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz BAND CENTER FREQUENCIES Hz 1221 X 1 2113 XI MODEL TH4242 SOUND LEVEL HIGH 47 dB A NC 40 LOW 38 dB A NC 32 CONDITION Distance 3 3 ft Under the unit 3 3 ft SOURCE 208 230 V 1 Phase 60 Hz 60 50 40 30 APPROXIMATE THRESHOLD OF 20 HEARING FOR CONTINUOUS 4 NOISE 0 0002 ubar OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 5 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz SM830082 2114 X I 91 1 10 Noise Criterion Curves Concealed Duct Type MODEL UH2442 1 Specifications MODEL UH3642 SOUND LEVEL HIGH 34 dB A NC 22 LOW 27 dB A NC 18 CONDITION Under the unit 4 9 ft SOUND LEVEL HIGH 38 dB A NC 30 LOW 31 dB A NC 21 CONDITION Under the unit 4 9 ft SOURCE 208 230 V 1 Phase 60 Hz SOURCE 208 230 V 1 Phase 60 Hz 60 50 40 20 APPROXIMATE 0 0002 ubar E 4 e 4 En T
112. M S 2 Flaps in indoor unit s air outlet does not operate when you press SWEEP button No Check the louver motor resistance W Replace the motor Is auto louver motor normal to S Is PNL connector socket attached to panel connected firmly with PNL plug Yes Replace P C B Ass y in the indoor unit Connect firmly 3 Flap does not operate when you press button When you press SWEEP button flap operates Does limit switch actuate No Replace the switch Is PNL connector socket attached to panel connected firmly with PNL plug Connect firmly Replace P C B Ass y in the indoor unit 2102 M 5 SM830082 IV 19 4 Service procedures 4 Compressor motor does not operate Does compressor motor magnetic No Replace the compressor contactor 52C actuate motor magnetic contactor Yes Check resistance of compressor motor winding NG Replace the compressor 0461 M I 5 Outdoor fan does not operate Are auxiliary relays 1Y Replace the relays normal Yes No e Is fan motor capacitor normal Replace the capacitor Yes Is there voltage output of No Replace P C B Ass y P C B Ass y for fan motor 2 in the outdoor unit Yes Check resistance of fan motor winding NG Replace the fan motor 1148 THS I SM830082 IV 20 4 Service procedures 7 Service Functions of Optional Wired
113. M d6 6nglae LHM d T3A NHO jeulue yeg z Nu9 seo m eBreyosig uwa V dS eld UNIDOS woes EM ene euu L en In vun zun Joopu JOMOd JOOPU OL wejbeig 2141593 e SM830082 Ill 16 3 Electrical data 3 2 Outdoor Units 3 CH4242 Schematic Diagram Terminal Plate 5P Pe gt CR deif Hs EP Outdoor Coil C1 Outdoor Coil C2 Discharge gas ee ee IN Symbols Description Symbols Description CM Compressor Motor CR Outdoor Controller FMO1 2 Outdoor Fan Motor RY1 RY5 Auxiliary Relay Compressor Motor Magnetic Contactor 1Y Auxiliary Relay Outdoor Fan Motor Thermal Protector Terminal Plate High Pressure Switch Terminal Current Transmitter Connector Running Capacitor Power Transformer Crank Case Heater Four Way Valve Fuse Thermistor Outdoor Coil C1 Thermistor Outdoor Coil C2 Thermistor Discharge Gas S 854 2 5268 948 00 0 CH4242 S SM830082 Ill 17 4 SERVICE PROCEDURES
114. PROM ICB of PCB failure F29 Fault with Protective device for comp is Comp motor is overloaded H1 andits activated Comp motor is locked H2 1 Current of comp cannot be detected when it is turned on H3 Current of comp is detected when it is not operated F27 Comp contactor Mg SW is chattering H18 Possible cause of Malfunction Alarm message Model setting of indoor unit is not matching the outdoor unit L2 When using group control main indoor unit address setting is duplicated L3 Judging by indoor unit Outdoor unit address R C No is duplicated L4 Priority setting of indoor unit is duplicated L5 L6 Improper wiring between indoor units 7 L7 There is group connection wiring in case of individual control Capacity code of indoor unit is not set L9 Improper wiring of group control wiring L11 Possible Cause of Malfunction The following messages are displayed only for the system controller were Serial Syst itt Indoor or outdoor unit is not working correctly commu Go ee Is transmitting Control lines between indoor unit outdoor unit and system C05 nication controller are wired correctly System controller is detecting Same as for C05 above Mis setting incorrect signal Connector CN1 is not connected correctly Activation of Protective device of the sub When using wireless remote controller or system controller protective indo
115. REQUENCIES Hz 2108 X I MODEL XH3642 MODEL XH4242 SOUNDLEVEL HIGH 44 dB A NC 37 SOUNDLEVEL HIGH 45 dB A NC 38 LOW 33 dB A NC 25 LOW 34 dB A NC 27 CONDITION Center Under the unit 4 9 ft CONDITION Center Under the unit 4 9 ft SOURCE 208 230V 1Phase 60Hz SOURCE 208 230 V 1 Phase 60Hz 60 60 50 m 50 EL St gt gt 40 40 gt io e 0 0 LU a n n a 30 a 30 z z ms 2 2 05 OG Og APPROXIMATE 1 o2 APPROXIMATE Sa THRESHOLD ZN THRESHOLD OF 58 0 HEARING FOR lt 8 0 HEARING FOR CONTINUOUS wo CONTINUOUS zt NOISE 2 1 NOISE M J FO d J d Tx wi T1 TI FA 9 ES Nt 1 4j up Of 10 Of 10 63 125 250 500 1000 2000 4000 8000 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz BAND CENTER FREQUENCIES Hz 2109 X I 21644330082 90 1 Specifications 1 10 Noise Criterion Curves Ceiling Mounted Type MODEL TH2442 MODEL TH3642 SOUNDLEVEL HIGH 40 dB A NC 34 SOUND LEVEL HIGH 46 dB A NC 39 LOW 36 dB A NC 26 LOW 37 dB A NC 31 CONDITION Distance 3 3 ft Under the unit 3 3 ft CONDITION Distance 3 3 ft Under the unit 3 3 ft SOURCE 208 230 V 1 Phase 60 Hz SOURCE 208 230 V 1 Phase 60 Hz 60 60 50 50 40 40 s be OCTAVE BAND SOUND PRESSURE
116. Refrigerant over charged Cooling Outdoor unit heat exchanger dirty clogged Outdoor unit air short Outdoor fan stopped Heating Outdoor unit air short Indoor unit heat exchanger dirty clogged Large pipe side service valve closed Indoor fan stop Air filter clogged 0344 M I SM830082 IV 15 4 Service procedures 13 Symptom LCD on the remote controller displays CHECK P05 Negative phase detection operation warning Is the power supply to the outdoor Check the power breaker etc unit normal and repair Voltage defective phase Does the outdoor unit operate when No problem two of the three phases are changed Actuation of negative phase protector Replace the fuse Is the fuse F1 F2 on the indoor unit PCB blown Is there a contact defect in the 3P connector No Correct the connection Replace the outdoor PCB 14 Symptom LCD on the remote controller displays CHECK E15 0345 M I When the group of the units are installed is there any mis cross p H between interunit control wiring and refrigerant tubing Are the total capacities of indoor units to that of outdoor units less than 9396 Select an indoor unit which matches with the outdoor capacity No Are there no contact failure between Check the contact outdoor and indoor units No Perform the same as CHECK E04 0646 M S SM830082 IV 16 4
117. Suspension bolt hole pitch 1 3 8 61 7 32 26 3 8 9 7 8 iti Air intake 2 ft or more X CW U 10 Air outlet or more 62 more Service space Service space Dimension inch Drain connection Drain connection for left side Refrigerant liquid line 3 8 Flare connection Refrigerant gas line 3 4 Flare connection 9 7 16 Hole for rear side refrigerant tubing Hole for through the wall refrigerant tubing 53 15 16 hole Hole for fresh air intake Knockout hole Hole for right side refrigerant tubing Knockout hole Hole for left side drain connection Knockout hole Hole for power supply Conduit size 1 2 Infrared rays receiver for wireless remote controller Cutting position for fresh air intake 41 7 3 4 1920 TS I SM830082 1 Specifications 1 4 Dimensional data Indoor unit Concealed Duct Type 24 Type 7 15 32 N ae NNI 3 ml T re d ad vu A Ga Se 8 oi A Led J W amp xin d E 6 5 16 1 316 13 32 3 1 3A6 2 3 4 31 32 24 13 16 ___ 3 11 32 oS SS EN 8
118. TECHNICAL DATA amp SERVICE MANUAL XH2442 CH2442 XH3642 CH3642 XH4242 CH4242 TH2442 CH2442 TH3642 CH3642 TH4242 CH4242 KH2442 CH2442 KH3642 CH3642 UH2442 CH2442 UH3642 CH3642 SPLIT SYSTEM AIR CONDITIONER INDOOR MODEL No PRODUCT CODE No XH2442 854 017 11 OUTDOOR MODEL No PRODUCT CODE No CH2442 SANYO FILE NO 854 017 21 XH3642 854 017 12 CH3642 854 017 22 XH4242 TH2442 854 017 13 854 017 14 TH3642 854 017 15 TH4242 KH2442 854 017 16 854 017 07 KH3642 UH2442 854 017 19 UH3642 854 017 20 XH2442 854 017 08 Indoor Unit E XH3642 XH4242 UH2442 85464849182000 UH3642 CH4242 TH2442 TH3642 TH4242 KH2442 KH3642 854 017 23 Outdoor Unit CH3642 CH4242 REFERENCE NO SM830082 Please Read Before Starting This air conditioning system meets strict safety and operating standards As the installer or service person it is an important part of your job to install or service the system so it operates safely and efficiently For safe installation and trouble free operation you must Carefully read this instruction booklet before beginning Follow each installation or repair step exactly as shown Observe all local state and national electrical codes 6 Pay cl
119. THERMO OFF TURN OFF THERMO THERMO ON ON COMPRESSOR ON OFF ON OFF ON OFF ON pl 2 Le 2 Le __ lt EI y lt 1 y lt 1 y SOLENOID COIL 4 WAY VALVE OFF ON OFF ON 1 More than 5 minutes 2 More than 3 minutes 0443_M_S Fig 15 Chart Summary and Explanations For the first 3 minutes after power is applied the 4 way valve remains OFF and the compressor will not operate even if the ON button is pushed If the 4 way valve is turned OFF with the compressor operating the air conditioner operates in COOLING mode See Table below If the 4 way valve is turned ON with the compressor operating the air conditioner operates in HEATING mode See Table below 4 way valve solenoid COOLING OFF HEATING ON Operation Mode Compressor ON SM830082 Il 14 B AUTO Control Mode 2 Processes and functions POWER SOURCE OFF ON OPERATION BUTTON ON MORE THAN 10 MINUTES MORE THAN 10 MINUTES THERMO OFF THERMO OFF AUTO OL Mon GOOL CO CONTROL HEAT HEAT HEAT THERMO OFF THERMO ON gt S MINUTES MORE THAN 3MINUTES COMPRESSOR OFF ON ON orl ON OFF ON MORE THAN MORE THAN 30 50 SECONDS _ 30 50 SECONDS SOLENOID COIL 4 WAY VALVE OFF ON OFF ON Fig 16 When the Compressor has stopped while in AUTO mode the 4 way valve switches on heating or off
120. UT NOTICE SM830082 13 1 2 Major Component Specifications A Indoor Unit MODEL No 1 Specifications XH4242 Source 230 208 1 phase 60 Hz Remote controller Option RCS SH80UA WL Controller P C B Ass y CR TH2442 Control circuit fuse 250 VAC 3A Fan Number diameter Turbo 1 17 7 16 443 Fan motor Model SFG6X 81A6P Source 230 208 V 1 phase 60 Hz No of pole r p m 230 V High 6 506 Nominal output 60 Coil resistance Ambient temperature 68 F BRW WHT 751 ORG YEL WHT VLT 6 7 VLT PNK VLT ORG 206 YEL BLK Safety device Operating temperature 266 174 2 27 Run capacitor 440 V 6 UF Electronic expansion valve Coil EKV MOZS742E Coil resistance at 20 C ORG GRY 46 YEL GRY RED GRY 46 BLK GRY Valve body HKV 30D27 Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch 2 14 9 Face area 8 20 0 762 Panel Model No PNR XH3642 Auto louver motor MT8 3C Auto louver motor Rated 240 3 W 3 Coil resistance Ambient temperature 77 F 16 430 Q 8 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 1 14 1 Specifications 1 2 Major Component Specifications A Indoo
121. al operation 2 The remote controller self diagnostic function can be run on a remote controller independently if power of 9 16 VDC is supplied to plug 2P as shown in Figure IV 6 A 12 0 1 4 W resistor must be placed in between Checking serial communications The remote controller s own serial communications sending and receiving circuits can be checked by moving the shorting plug The indicators will respond as follows for approximately 10 seconds then turn off Correct All indicators light up Incorrect All indicators flash on and off Checking I O circuits After completing the serial communications check for 10 seconds operate each switch on the remote controller If the LCD display responds then the remote controller is normal During normal gt operation Shorting plug is moved 120 1 4W During self diagnostic check Fig IV 6 SM830082 IV 24 4 Service procedures Never press clear button unless you want to erase the accessed data in memory Follow the procedure below only when erasing is necessary 0 To erase accessed data press the button 1 When erasing is finished mark appears on the controller s display ANS After checking the alarm messages be sure to press the button E Execute the auto address operation 1
122. ambient temp F C 1159 X S 1160 X S Indoor Unit KH3642 Outdoor Unit CH3642 Outdoor fan speed Indoor Outdoor fan speed Indoor Low High temp Low High temp 19 F C 19 F C 1 1 18 18 85 30 lt 17 1 lt L 2 Fa EI 9 16 80 27 9 16 B 5 I 75 24 5 2 pez 7 70 21 S9 15 7 70 21 9 15 1222 z 22 ST a 4 Q O 13 13 12 12 1 1 1 1 59 68 77 86 95 104 59 68 77 86 95 104 15 20 25 30 35 40 15 20 25 30 35 40 Outdoor ambient temp F C Outdoor ambient temp F C 2190 X S 2191 X S SM830082 77 1 9 Performance Charts 6 Heating Characteristics 1 Operating Current Indoor Unit XH2442 Outdoor Unit CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5095 Indoor fan speed High 1 Specifications Indoor Indoor temp
123. characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5095 Indoor fan speed High Outdoor fan speed Outdoor fan speed Low High Low High Indoor 15 T Indoor 15 T temp temp F C 14 F C 14 __ 85 30 __ 85 30 80 27 13 2 80 27 lt 13 75 24 5 12 75 24 5 12 70 21 E 70 21 E 1 Li S ii 9 1 I 2 S 10 1025 d i 8 s 8 8 8 l 1 1 59 68 77 86 95 104 59 68 77 86 95 104 15 20 25 30 35 40 15 20 25 30 35 40 Outdoor ambient temp F C Outdoor ambient temp F C 2188 X S 2189 X S Indoor Unit UH3642 Outdoor Unit CH3642 Outdoor fan speed Indoor Outdoor fan speed Indoor Low High temp Low High temp 19 F C 19 ES 18 i 18 i SS 85 30 17 85 80 lt 17 I Gd I 80 27 E I Iz 2 16 E75 24 2 16 70 21 3 2 7 70 21 1 9 15 9 15 J c c gt E 44 Lee S 14 LA 8 13 8 1
124. combination a plural number of indoor units are set the opening degree of the electronic control valve is controlled by the indoor unit coil temperature Cooling indoor unit coil E2 temperature located at the middle of coil Heating indoor unit coil E1 temperature located at the outlet of coil 2 Fuzzy control optimal refrigerant flow rate control By outputting the fuzzy estimation result corresponding to the fuzzy input variables the indoor unit coil temp the deviation between the actual discharge gas temp and the target discharge gas temperature calculated from the outdoor unit coil temperature and the change thereof the electronic refrigerant valve is controlled so that the unit can perform its maximum ability in accordance with the indoor and outdoor temperature conditions at the operation SM830082 Il 18 2 Processes and functions 2 17 Voltage Detection Control When the power voltage falls below 160 V or rises above 260 V operation lamp and stand by lamp flash alternately to protect the compressor and electrical components SM830082 Il 19 3 ELECTRICAL DATA 3 1 Indoor Units Electric Wiring Diagram Schematic Diagram Ill 2 4 Way Air Discharge Semi concealed Type Ill 2 Ceiling M nted Ty sasada aa o EM Ill 4 Concealed Duct EE 6 Concealed Duct High Static Pressure Type Ill 8 3 2 Outdoor Unit
125. cuit defect Insufficient voltage Compressor lock L3 phase wire disconnected Comp motor magnetic contactor Comp motor magnetic contactor defect defect Refrigerant over charged Outdoor unit PCB defect 0346 M I 19 Check the indoor unit When the alarm of communication failure is not activated 6 If the electronic control valve failure occurred in Flexible Combination system simultaneous operation system one indoor unit would not be operated normally then the other units won t be operated either Due to this try to detect the troubled unit and correct it Operate the unit in cooling mode 30 minutes after its operation Cooled air comes out s the temperature of each indoor coil sensor almost the same Refer to the sensor temperature display function of the remote controller Does each indoor coil sensor detect the temperature correctly Is there any leakage from the pipe of the temperature detection section Failure in the electronic control valve activation Replace the sensor 0460 M I SM830082 IV 18 4 Service procedures 6 Procedures When a Specific Component Does Not Work 1 Indoor fan does not operate Is fan motor capacitor normal Replace the capacitor Is there voltage output of P C B Ass y for fan motor Replace the P C B Ass y in the indoor unit Check resistance of fan motor winding Replace the fan motor 0650
126. d Automatic control 3 Auto Optional Wired Remote Controller Timer RCS SH80UG 72 hour ON OFF Optional Wireless Remote Controller Timer RCS SH80UA WL RCS BH80UA WL 72 hour ON OFF Air deflection Horizontal Vertical Automatic Air filter Washable easy access long life fiter 2 500 hr Indoor Hi Me Lo Operation sound Outdoor Hi 45 38 34 56 Refrigerant control Electronic Expansion Control Valve REFRIGERANT PIPING Limit of piping length 165 50 Limit of piping length at shipment 100 30 Limit of elevation difference between the two units Outdoor unit is higher than indoor unit 165 50 Outdoor unit is lower than indoor unit 100 30 3 8 9 52 3 4 19 05 Indoor unit Outdoor unit 14 1 2 368 48 5 8 1 235 41 31 32 1 066 37 1 32 30 9 16 776 13 3 8 60 27 203 3 1 16 78 2 7 45 9 32 1 150 33 27 32 860 15 7 14 1 2 368 52 7 32 44 9 32 1 125 40 33 9 32 845 16 3 8 71 32 227 12 4 0 35 19 8 4 3 32 104 19 1 2 1 257 39 11 32 999 Refrigerant piping Narrow pipe Flare type Wide pipe DIMENSIONS amp WEIGHT Unit dimensions Height Width Depth Net weight Indoor grille dimensions Height PNR XHS2432 Width Depth Net weight Indoor Outdoor unit Height Package dimensions Width Depth Sh
127. d remove the indoor outdoor unit control lines connected to U1 and U2 of the indoor unit 8P terminal plate Is the contact good at the 2P connector for indoor serial Correct the connections communications on the outdoor unit PCB After shorting the test pin CN2 on the indoor unit PCB switch the breaker on Does the LED red on the PCB light up Replace the indoor unit PCB Yes Yes Correct the connections Cut the breaker remove the Is the contact good at the 2P indoor outdoor unit control connector for indoor serial lines connected to U1 and U2 of communications on the outdoor the outdoor unit 8P terminal plate unit PCB After shorting the test pin CN11 on the outdoor unit PCB switch the breaker on Do the LEDs red x 2 on the PCB flash Yes Indoor outdoor unit Replace the indoor unit PCB control lines are cut off Correct the wiring 0335 M I 5 Symptom LCD on the remote controller is displaying CHECK E05 Unusual communication between the indoor and outdoor units Indoor unit PCB transmission reception circuit defect Replace the indoor unit PCB 0336 M I SM830082 IV 11 4 Service procedures 6 Symptom LCD on the remote controller is displaying CHECK E06 Unusual communication between the indoor and outdoor units Correct the setting Is the setting for the indoor address on the indoor unit PCB inappropriate No Is there a cut
128. door unit is lower than indoor unit 100 30 Refrigerant piping Flare type DIMENSIONS amp WEIGHT Indoor unit Outdoor unit Unit dimensions Height in 9 7 16 48 5 8 Width in 62 1 32 37 1 32 Depth in 26 3 8 13 3 8 Height in 12 15 32 52 7 32 Width in 66 1 16 d 40 Depth in 31 1 16 16 3 8 Net weight 90 203 Shipping weight 3 104 227 Shipping volume ft 14 8 19 8 DATA SUBJECT TO CHANGE WITHOUT NOTICE Narrow pipe Wide pipe 3 8 9 52 3 4 19 05 Indoor grille dimensions Cooling Rating conditions Heating Rating conditions Room temperature 70 F DB 60 F WB Ambient temperature 47 F DB 43 F WB Low temp conditions Room temperature 70 F DB 60 F WB Ambient temperature 17 F DB 15 F WB Room temperature 80 F DB 67 F WB Ambient temperature 95 F DB 75 F WB SM830082 1 Specifications 1 1 Unit Specifications MODEL No Indoor Unit TH4242 Outdoor Unit CH4242 POWER SOURCE 230 208 1 Phase 60 Hz PERFORMANCE Cooling Heating Capacity BTU h 42 000 40 000 44 000 42 000 28 000 26 000 Moisture removal High Pints h 14 8 14 3 Air circulation H M L cu ft min 1 100 930 750 S E E R H S P F BTU Wh 10 0 10 4 7 0 7 0 ELECTRICAL RATINGS Voltage rating VAC 230 208 230 Available voltage range 187 253 Running amperes 20 6 21 3 21 7 Power input 4 300 4 200 4 450
129. e and indoor temperature Indoor relative humidity 50 Indoor fan speed High 230V 208V Outdoor fan speed Low High 100 Indoor temp 8 90 F C o 80 2 70 85 30 80 27 s 60 75 24 5 50 70 21 a 40 59 68 77 86 95 104 15 20 25 30 35 40 Outdoor ambient temp F C 1162 X S SM830082 86 1 9 Performance Charts 6 Heating Characteristics 2 Operating Pressure D Indoor Unit 24 Type High Pressure 1 Specifications Outdoor Unit CH2442 High pressure characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5095 Indoor fan speed High 230V 208V Indoor 340 temp F C 320 75 24 m 10 70 21 z LL 65 18 5 280 s 2 260 lt Ce Ld amp 240 Ze o S 220 2 200 SE 180 14 23 32 41 50 59 68 710 Low Pressure 5 0 5 10 15 20 Outdoor ambient temp F C 1165_X_S Low pressure characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 50 Indoor fan speed High
130. e system type liquid and gas lines may be either narrow or wide Therefore to avoid confusion the refrigerant tubing for your particular model is specified as either narrow or wide rather than as liquid or gas When Servicing Turn the power OFF at the main power box mains before opening the unit to check or repair electrical parts and wiring Keep your fingers and clothing away from any moving parts Clean up the site when installation is finished Check that no metal scraps or bits of wiring have been left inside the unit Ventilate any enclosed areas when installing or testing the refrigeration system Contact of refrigerant gas with fire or heat can produce poisonous gas Confirm after installation that no refrigerant gas is leaking If the gas comes in contact with a burning stove gas water heater electric room heater or other heat source it can cause the generation of poisonous gas SM830082 WHO SHOULD USE THIS MANUAL This service manual is made to assist the service technician apply his knowledge and training to this model air conditioner This manual is written both for experienced service persons and those who are new to air conditioning service To help those with less experience or who are new to this kind of unit we have included more explanations of basic procedures in simple language than is usual in some service manuals The experienced technician will of course find he knows many of
131. ed Duct Type B Flange for the air intake duct Field supply For Concealed Duct Type Thickness more than T1 16 inch At 2T So o TI 1 Specifications N N 2 e T 8 9 32 31 32 p 12 1 32 131 32 L 10 1 4 O D 29 92 48 9 8 s H l Y cu AAN X A Av LL d e e O d lt m I 1 e Y LL Y T J Y 5 16 125 32 7 7 8 1 25 32 2118 U I mm A B E D E F G H 12 18 type 27 15 32 26 1 16 5 32 7 7 8 3x 7 7 8P 23 5 8 6 11 16 13 3 4 15 32 24 type 39 9 32 37 7 8 1 4 7 3 32 5 7 3 32 35 7 16 4 23 32 9 21 32 9 21 32 x 1 9 27 32 5 8 36 type 58 3 16 56 25 32 9 32 9 116 6x9 1 16 54 11 32 4 23 32 19 9 32 9 21 32 x 2 9 7 16 25 32 SM830082 44 1 Specifications 1 4 Dimensional data Indoor unit Wall Mounted Type 24 Type gt 4 Y H JI 23A 49 7 32 8 9 32 4 5 32 p is D Refrigerant gas line wide tubing 3 4 Refrigerant liquid line narrow tubing 2 1 4 G Drain hose OD 1 1 4 Dimension inch 1911 X S SM830082
132. ed Motor MT8 3C DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 30 1 Specifications 1 3 Other Component Specifications A Indoor Unit Power Transformer ATR IIK244B Rated Primary AC 220 V 60 Hz Secondary BRN BRN 14 V 0 55 A RED 14 V 0 3 A Capacity Coil resistance WHT WT 480 RED RED 0 89 Ambient temprature 77 F BRN BRN 045 ORG ORG 2 05 Thermistor cut off temperature 277 Thermistor Coil sensor PBC 41E S36 Coil resistance Thermistor Room or coil sensor Coil resistance Electronic expansion valve Valve body HKV 30D16 Coil EKV MOZS559E0 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 31 1 3 Other Component Specifications A Indoor Unit 1 Specifications MODEL No Power Transformer ATR IIK244B Rated Primary AC 220 V 60 Hz Secondary BRN BRN 14 V 0 55 A RED RED 14 V 0 3 A Capacity Coil resistance Ambient temprature 77 F WHT WHT 480 RED RED 0 89 BRN 045 ORG ORG 2 05 Thermistor cut off temperature 277 Thermistor Coil sensor PBC 41E S36 Coil resistance Thermistor Room or coil sensor Coil resistance Electronic expansion valve Valve body HKV 30D16 Coil EKV MOZS559E0 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 32 1 Specifica
133. elf diagnosis function 6 Precautions required when checking 1 After turning off the power to the indoor outdoor unit remove the inter unit control wiring U1 U2 and create a short circuit between U1 and U2 2 Short the CHECK PIN on the PC board of the indoor outdoor unit and turn on the power 3 When checking the Outdoor controller remove the compressor wiring from the compressor electromagnetic contactor 4 1 Checking the serial circuit Indoor controller A lighted LED indicates normal A blinking LED indicates abnormal Outdoor controller Blinking LEDs D11 and D22 indicate normal If one of the LEDs D11 and D22 goes off it indicates abnormal 4 2 Checking microcomputer operation When the microcomputer works normally the relays are switched in sequence as below Indoor controller Output ON time Indoor fan Very high fan speed HH 0 5 seconds Indoor fan High fan speed H 0 5 seconds Indoor fan Low fan speed L 0 5 seconds Indoor fan Very low fan speed LL 0 5 seconds Flap motor 0 5 seconds Drain pump 0 5 seconds Operation order Electric heater 0 5 seconds Operation signal 0 5 seconds In a lump 0 5 seconds Electronic control valve A 0 5 seconds Electronic control valve B 0 5 seconds Electronic control valve A 0 5 seconds Electronic control valve B 0 5 seconds Outdoor controller Output ON time Outdoor fan High fan speed
134. emperature Control 2 2 2 Cold Draft Prevention Heating Cycle 4 2 3 Automatic Fan Speed Indoor Unit Il 5 2 4 Outdoor Fan Speed SAMO etterende Il 6 2 5 Freeze Prevention Cooling 7 2 6 Condensing Temperature Control Cooling 8 SM830082 2 7 Overload Protection Heating 9 2 8 Discharge Temperature Control Cooling and Heating Il 10 2 9 Auto Mode for Automatic Heating Cooling Switching Il 11 2 10 Defrosting Control Outdoor Heat Exchanger Coil Heating Il 13 2 11 4 Way Valve Solenoid Control Il 14 2 12 Automatic Restart after Power Interruption Il 15 2 13 Electronic Expansion Control Valve Il 16 2 14 Compressor Discharge Gas Il 16 2 15 Compressor Current Detection Circuit Il 17 2 16 Electronic Expansion
135. er Timer RCS BH80UA WL 72 hour ON OFF Air deflection Horizontal Vertical Air filter Optional Operation sound Indoor Hi Me Lo Outdoor Hi 34 30 27 at shipment 38 34 30 using jumper cable 53 Refrigerant control Electronic Expansion Valve REFRIGERANT PIPING Limit of piping length 165 50 Limit of piping length at shipment 100 30 Limit of elevation difference between the two units Outdoor unit is higher than indoor unit 165 50 Outdoor unit is lower than indoor unit 100 30 Refrigerant piping Flare type Narrow pipe Wide pipe 1 4 6 35 3 4 19 05 DIMENSIONS amp WEIGHT Indoor unit Outdoor unit Unit dimensions Height 12 7 32 310 28 15 16 Width 39 3 8 1 000 37 1 32 Depth 24 13 16 13 3 8 Net weight 1 1 4 32 17 32 Package dimensions Height 14 3 32 40 Width 46 7 8 16 3 8 Depth 30 13 16 157 Shipping weight Shipping volume Cooling Rating conditions Heating Rating conditions 82 170 11 8 12 3 0 349 DATA SUBJECT TO CHANGE WITHOUT NOTICE Room temperature 80 F DB 67 F WB Ambient temperature 95 F DB 75 F WB Room temperature 70 F DB 60 F WB Ambient temperature 47 F DB 43 F WB Low temp conditions Room temperature 70 F DB 60 F WB Ambient temperature 17
136. er breaker etc unit normal and repair Voltage defective phase Yes Is the fuse on the outdoor unit Replace the fuse PCB blown F1 and F2 No Replace the outdoor unit PCB Is the high pressure switch 63 PH off Is there 230 208 V AC between Replace the outdoor unit PCB CN19 9 and CN19 7 on the outdoor unit PCB Is the outdoor fan wire winding protection thermostat 49FO off Yes No refrigerant Replace the outdoor fan High load 4 way valve defect Clogged refrigerant circuit Electronic refrigerant control valve defect indoor unit Yes Is there connector contact defect Correct the connection No Replace the outdoor unit PCB 2099 THS I SM830082 IV 14 4 Service procedures 11 Symptoms LCD on the remote controller displays CHECK Alarm for unusual discharge temp of compressor Unusual discharge gas temperature Refrigerant shortage Clogged refrigerant circuit Electronic refrigerant control valve defect indoor unit 0343M I 12 Symptom LCD on the remote controller displays CHECK P04 High pressure switch activation warning The system does not operate again Repair the wiring Yes Are there connection defects in the wiring No High pressure switch defect High pressure switch activation Both cooling and heating Electronic refrigerant control valve defect
137. f R C with the 4 w amp button d Setthe No of R C which you want to set with 4 w button Press the 57 button UNIT No CODE No 12 and SET DATA 0002 change from flashing to ON state Set the indoor address D Select the CODE No 13 to set the indoor unit No with the 4 button Set the indoor unit No which you want to set with the a gt button Press the button UNIT No CODE No 13 and SET DATA 0004 change from flashing to ON state Set the group address D Select the CODE No 14 to set group setting with the a w button Q Set No of group setting with the gt button Press the button UNIT No CODE No 14 and SET DATA change from flashing to ON state If you made a mistake press the button so that setting returns to the initial state Press the button to finish this mode The display is disappeared Confirm the indoor unit address UNIT No with the button after pressing the ON OFF button In case of group control be sure to restore the branch wiring to its original wiring In case of remote controller less system remove the remote controller SM830082 IV 28 4 Service procedures R C address R C address LEN Indoor address 1 CD D Group address 0 2080M I Fig IV 11 Fig IV 12 1 Change the
138. fore wiring confirm the rated voltage of the unit as shown on its nameplate then carry out the wiring closely following the wiring diagram 2 Provide a power outlet to be used exclusively for each unit and a power supply disconnect and circuit breaker for overcurrent protection should be provided in the exclusive line To prevent possible hazards from insulation failure the unit must be grounded Each wiring connection must be done in accor dance with the wiring system diagram Wrong wiring may cause the unit to misoperate or become damaged Do not allow wiring to touch the refrigerant tubing compressor or any moving parts of the fan Unauthorized changes in the internal wiring can be very dangerous The manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes 7 1 Specifications Regulations on wire diameters differ from locality to locality For field wiring rules must follow your LOCAL ELECTRICAL CODES before beginning You must ensure that installation complies with all relevant rules and regulations To prevent malfunction of the air conditioner caused by electrical noise care must be taken when wiring as follows 6 The remote control wiring and the inter unit control wiring should be wired apart from the inter unit power wiring 6 Use shielded wires for inter unit control wiring between units and ground the shield on both side
139. ge 187 253 Running amperes 11 6 11 7 Power input 2 350 2 500 2 150 Maximum overcurrent protection 25 FEATURES Controls Microprocessor Low ambient control Built in O F Fan speeds Indoor Outdoor 3 and Automatic control 3 Auto Optional Wired Remote Controller Timer RCS SH80UG 72 hour ON OFF Optional Wireless Remote Controller Timer RCS SH80UA WL RCS BH80UA WL 72 hour ON OFF Air deflection Horizontal Vertical Automatic Air filter Washable easy access long life fiter 2 500 hr Operation sound Indoor Hi Me Lo Outdoor Hi 38 35 31 53 Refrigerant control Electronic Expansion Control Valve REFRIGERANT PIPING Limit of piping length 165 50 Limit of piping length at shipment 100 30 Limit of elevation difference between the two units Outdoor unit is higher than indoor unit 165 50 Outdoor unit is lower than indoor unit 100 30 Refrigerant piping Narrow pipe 1 4 6 35 3 4 19 05 Flare type Wide pipe DIMENSIONS amp WEIGHT Indoor unit Outdoor unit Unit dimensions Height 12 1 8 28 15 16 Width in 30 9 16 37 1 32 Depth in 30 9 16 13 3 8 Net weight 49 157 Indoor grille dimensions Height 3 1 16 PNR XHS2432 Width 33 27 32 Depth in 33 27 32 Net weight 11 Indoor Outdoor unit Height 13 5 16 32 17 32 Package dimensions Width
140. gerant gas leaks during the installation Be careful not to allow contact of the refrigerant gas with a flame as this will cause the generation of poisonous gas Keep all tubing runs as short as possible Use the flare method for connecting tubing Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them then tighten the nut with a torque wrench for a leak free connection Check carefully for leaks before starting the test run NOTE SPECIAL PRECAUTIONS When Wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY A QUALIFIED EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked 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 accidentaly injury or death Ground the unit following local electrical codes Connect all wiring tightly Loose wiring may cause overheat ing at connection points and a possible fire hazard 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 to reduce strain on your back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers Depending on th
141. he PCB Ass y from the electrical compo nent box Fig IV 20 2 Remove the fuse from PCB Ass y using pliers while Soldering iron heating the soldered leads on the back side of the PCB Ass y with a soldering iron 30W or 60W Fig IV 21 P PCB Ass y 3 For replacement insert a fuse of the same rating to CELLE Erf the intended position and solder it Allow time to radiate heat during soldering so that the fuse does not melt AN When replacing the fuse be sure not to break down the varistor IV 33 Varistor Pliers 1043 X Fig IV 21 SM830082 4 Service procedures Solenoid coil of the electronic refrigerant Measure the coil resistance control valve ERCV Indoor unit Measure the resistance between No 5 GRY lead wire and other terminals another color of lead wires of 5P WHT plug connected to the solenoid coil Refer to 1 2 A Major component specifications Compressor motor CM Outdoor unit Measure the coil resistance Incase of single phase compressor Remove the cover of compressor terminal and measure the resistance between terminals Refer to 1 2 Major component specifications 9 Compressor motor magnetic contactor 52C Outdoor unit Measure the resistance between A ORG lead wire and B GRY lead wire terminals on the compressor motor magnetic contactor Refer to 1 3 Other component specifications Check the continui
142. her of these problems Sometimes you can start with this chart and find the problem right away but often you will come here for more suggestions after you have looked at the error code on the remote control unit display This chart gives you the big picture of problems and solutions The other main tool we explain here is the use of the Alarm Messages When a certain part fails or a safety device has shut the unit down any alpha numeric codes appears on the display to guide you to the problem By understanding the code you can often go right to the problem area and then with this manual and your knowledge of air conditioning find the solution SM830082 D Check power supply wiring 1 Check before and after Troubleshooting Many problems may happen because of wiring or power supply problems so you should check these areas first Problems here can cause false results in some of the other tests and so should be corrected first 4 Service procedures C Check the power supply wires are correctly connected between terminal No 1 amp 2 on the 5P terminal plates in the indoor unit and the outdoor unit 2 Check inter unit wiring C Check that inter unit control wiring DC low voltage is correctly connected between the indoor unit and outdoor unit Power Supply 60 Hz single phase 230 208 V Inter unit power wiring Single phase 230 208V Inter unit control wiring Low voltage SU Remote controller Option Indo
143. i TC 2 55 16 200 15 180 18 160 17 140 TO 23 450 21 270 2 59 7 950 7 110 9 910 9 070 11 120 N E 13 080 SHC 15 040 TC 21 980 2 63 SHC 6 650 SHC 8 700 SHC 10 660 suc 12 620 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h CI Compressor Input kW Rating conditions are Outdoor Ambient Temp 95 FDB Indoor Unit Entering Air Temp 80 FDB 67 FWB SM830082 67 1 Specifications Indoor Unit KH2442 Outdoor Unit CH2442 208V 1 phase 60Hz RATING CAPACITY 21 000 BTU h AIR FLOW RATE 510 CFM CONDENSER AMBIENT TEMP FCC poss 23 9 29 4 85 0 40 6 46 1 TC E GE EE 59 15 0 TC 18 840 17 540 2 12 2 36 12 940 11 970 11 430 10 840 63 12 710 17 2 14 660 16 530 17 540 18 670 2 63 8 800 10 670 12 620 14 490 16 360 20 310 2 67 6 800 8 670 10 620 12 490 14 360 20 980 2 71 6 360 8 320 10 180 12 050 14 810 13 840 13 290 16 760 15 790 15 250 17 660 17 110 19 530 18 840 19 890 2 39 9 310 11 170 13 130 14 990 16 860 21 400 2 42 7 220 9 090 11 040 12 910 14 770 22 010 2 46 6 720 8 670 10 540 12 400 14 420 14 030 13 590 TC 21 000 10 600 9 780 67 12 470 11 640 19 4 16 290 15 460 18 160 17 760 17 330 13 980 13 640 13 290 15 840 15 510 15 160 24 610 22 970 1 84 75 7 640 7 050 23 9 9 590 9 010 24 130 22 390 18i 5 8 290 7 600 71 i 10 160 9 470 21 7 d 12 110 11 420
144. ications 1 3 Other Component Specifications B Outdoor Unit MODEL No CH3642 Compressor Motor Magnetic Contactor FC 159 Coil rated 240 VAC 60 Hz Coil resistance at 68 F Q 588 10 Contact rated Main 240 VAC 26 A Contact rated Auxiliary 240 VAC 3A Power Relay HH62S Coil rated 240 VAC 60 Hz Coil resistance at 77 F 17 2 Contact rated 220 VAC 5A Power Transformer ATR 165C Rated Primary 220 VAC 60 Hz Secondary 14 V 0 4 A Capacity 5 6 VA Coil resistance at 73 F WHT WHT 395 5 BRN BRN 2 19 Thermal cut off temperature 266 Thermistor Coil sensor TH6 7 41E 54 PBC 41E S36 Coil resistance 14 F 23 7 50 F 9 7 23 F 18 8 68 F 6 5 32 F 15 0 86 F 4 4 41 F 12 1 104 F 3 1 113 F 2 6 Thermistor Comp discharge gas sensor TH8 PTC 51H 51 Coil resistance 5 194 F 5 1 212 F 3 8 230 F 2 8 248 F 22 266 F 1 7 Solenoid control valve or coil Solenoid control valve V 389100 Solenoid coil LB 59005 Thermistor PTC TDK 101YV Rated Max voltage 400 VAG Max ampere 11 5 A Resistance at 77 F 100220 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 36 1 Specifications 1 3 Other Component Specifications B Outdoor Unit MODEL No CH4242 Compressor Motor Magnetic Contactor FC 28UL Coil rated 240
145. ifference i Outdoor unit is higher than indoor unit 165 50 between the two units Outdoor unit is lower than indoor unit 100 30 Refrigerant piping Narrow pipe in 3 8 9 52 Flare type Wide pipe in 3 4 19 05 DIMENSIONS amp WEIGHT Indoor unit Outdoor unit Unit dimensions Height in 12 7 32 310 48 5 8 1 235 Width in 58 9 32 1 480 37 1 32 940 Depth in 24 13 16 630 13 3 8 340 Package dimensions Height in 14 3 32 358 52 7 32 1 326 Width in 65 25 32 1 671 40 1 016 Depth in 30 13 16 783 16 3 8 416 Net weight ibs 104 47 203 92 Shipping weight 115 52 227 103 Shipping volume ft 16 5 0 468 19 8 0 56 DATA SUBJECT TO CHANGE WITHOUT NOTICE Cooling Rating conditions Room temperature 80 F DB 67 F WB Ambient temperature 95 F DB 75 F WB Heating Rating conditions Room temperature 70 F DB 60 F WB Ambient temperature 47 F DB 43 F WB Low temp conditions Room temperature 70 F DB 60 F WB Ambient temperature 17 F DB 15 F WB SM830082 1 1 Unit Specifications MODEL No Indoor Unit 1 Specifications Outdoor Unit POWER SOURCE KH2442 CH2442 230 208 V 1 Phase 60 Hz PERFORMANCE Cooling Heating Capacity BTU h 22 000 21 000 25 000 16 000 24 300 15 300 Moisture removal High Pints h 7 1 6 8 Air circulation H M L cu f
146. il E2 Thermistor Indoor Coil E3 854 2 5268 935 00 0 KH2442 SM830082 III 9 3 Electrical data KH3642 Wall Mounted Type CV9 HM 0 00 926 8929 2 798 W 2 1ejonuo qatu 34 3 due NHD LHM 05 09 Oel INd S4 LHM L Zi L eli ep L elei e L E folslvle e I LHM d8 LHM dS Jejoeuuo N LHM gt GH T3A NHO 10 JIN DHO TAA j na Jejoeuuoo aug eun yun Joopino OL Buui 20199 3 e SM830082 Ill 10 3 Electrical data Wall Mounted Type KH3642 Terminal Plate 4P 1 H sch 204 m Y i 7 OF 7 Qu wW d F2 5A ri rd 4P P Oy To Outdoor Unit
147. in 32 7 8 40 Depth in 33 9 32 16 3 8 Shipping weight 57 170 Shipping volume 8 4 12 3 Indoor grille Height in 4 3 32 Package dimensions Width i 37 15 16 PNR XHS2432 Depth 39 11 32 Shipping weight 18 Shipping volume 3 5 DATA SUBJECT TO CHANGE WITHOUT NOTICE Cooling Rating conditions Heating Rating conditions Room temperature 70 F DB 60 F WB Ambient temperature 47 F DB 43 F WB Low temp conditions Room temperature 70 F DB 60 F WB Ambient temperature 17 F DB 15 F WB 1 2 Room temperature 80 F DB 67 F WB Ambient temperature 95 F DB 75 F WB SM830082 1 1 Unit Specifications MODEL No POWER SOURCE Indoor Unit 1 Specifications Outdoor Unit XH3642 CH3642 230 208 1 Phase 60 Hz PERFORMANCE Cooling Heating Capacity BTU h 34 500 33 500 37 500 25 000 36 500 23 500 Moisture removal High Pints h 10 5 10 6 Air circulation H M L cu ft min 1 050 840 720 S E ER H S PF BTU Wh 10 7 11 0 7 0 7 0 ELECTRICAL RATINGS Voltage rating VAC 230 208 230 Available voltage range 187 253 Running amperes 15 4 15 8 18 2 Power input 3 350 3 200 3 850 3 150 Maximum overcurrent protection 40 FEATURES Controls Microprocessor Low ambient cont
148. indoor unit taking into account of the temperature gap between upper part and lower part of the room Within 10 minutes after the compressor turns OFF the operation does not change to cooling heating even when the room temperature changes from C to A A to C When switching from cooling heating to heating cooling the actuation of the 4 way valve will delay about 30 50 seconds after the compressor turns ON Il 12 SM830082 2 Processes and functions 2 10 Defrosting Control Outdoor Heat Exchanger Coil Heating When the outdoor temperature is low frost may form on the outdoor heat exchanger coil When this occurred the defrosting system operates The microprocessor in the outdoor unit monitors the relationship between the temperature of the outdoor heat exchanger coil and the outdoor temperature so it can defrost when necessary Flow of Defrosting Heating operation No counting time for detecting frost 15 minutes Detecting the frost Stand by time for defros 25 minutes Defrosting Refer to time chart Minimum continuous operating time by defrosting is 48 minutes 15 8 25 Occurs either when the temperature of C1 the outdoor Release of defrosting heat exchanger coil has reached 50 F or above or when the maximum defrosting time 9 minutes OUTDOOR COIL TEMP C1 F Y RELEASE OF DEFROSTING RANGE OUTDOOR AIR TEMP CF 50 d The area below the heavy line is the frost detection
149. ipping weight Shipping volume Indoor grille Height Package dimensions Width PNR XHS2432 Depth Shipping weight Shipping volume Cooling Rating conditions Heating Rating conditions 22 10 4 6 0 131 DATA SUBJECT TO CHANGE WITHOUT NOTICE Room temperature 80 F DB 67 F WB Ambient temperature 95 F DB 75 F WB Room temperature 70 F DB 60 F WB Ambient temperature 47 F DB 43 F WB Low temp conditions Room temperature 70 F DB 60 F WB Ambient temperature 17 F DB 15 F WB SM830082 4 1 1 Unit Specifications MODEL No Indoor Unit 1 Specifications Outdoor Unit POWER SOURCE TH2442 CH2442 230 208 1 Phase 60 Hz PERFORMANCE Cooling Heating Capacity BTU h 22 400 21 600 25 400 25 000 15 700 15 000 Moisture removal High Pints h 8 0 7 9 Air circulation H M L cu ft min 550 490 460 S E E R H S P F BTU Wh 10 0 7 0 7 0 ELECTRICAL RATINGS Voltage rating VAC 208 230 Available voltage range 187 253 Running amperes 11 3 11 7 Power input 2 280 2 550 2 070 Maximum overcurrent protection 25 FEATURES Controls Microprocessor Low ambient control Built in O F Fan speeds Indoor Outdoor 3 and Automatic control 3 Auto Optional Wired Remote Controller Timer RCS SH80UG 72 hour ON OFF
150. irst group Air discharge Concrete block 4 inch x 1 ft 4 inch beams or equal Anchor bolts 4 pieces Fig 2 3 0934 C I 101 Min 6 inch 0933 C S SM830082 1 Specifications B Air Discharge Chamber for Top Discharge Install the air discharge chamber in the field when it is difficult to keep a space of minimum 2 ft between the air discharge outlet and the obstacle 6 the air discharge outlet is facing the sidewalk and discharge hot air can annoy the passers by Refer to Fig 2 4 0426 C I 22 5 16 JE Recommended outer dimensions of wind shield x field supply io 11 13 16 5 5 21 13 16 io 5 n z Be S d uc Y Es d mum 1 7 82 9 27 82 9 27 32 5 5 32 21 13 16 1352 CI CH3642 CH2442 Fig 2 4 B Installing the Outdoor Unit in Heavy Snow Areas In locations subject to strong winds snow proof ducting should be fitted and direct exposure to the wind should be avoided as much as possible The following problems may occur when the outdoor unit is not provided with a platform and snow proof ducting a The outdoor fan may not run and there may be damage to the unit b There may be no air flow c The tubing may freeze and burst d The condenser pressure may drop because of
151. it is needed Press the Z and buttons at the same time for more than 4 seconds b Select the R C No which you want to change with the up or down buttons Press the ET button to confirm the R C No The smallest registered indoor No and the selected R C No will be displayed d Select the indoor No which you want to change with button Once in this mode the fan motor of selected indoor unit will turn on and let you confirm the indoor unit address Set the required new indoor unit s No by pressing the 4 gt button Press the button UNIT No SET DATA 0001 and changes from flashing to ON state 9 If you made a mistake press the button Finally press the 4 button D If you want to change the indoor unit address of the other R C No follow the step to in the same way 1932 M I 2077MI SM830082 4 Service procedures G Change the shift temperature in heating mode Ref Fig IV 10 Q If the indoor unit is installed at high location ex ceiling level the thermostat tends to turn off at heating mode because of the hot air temperature around ceiling level In order to solve the problem the shift temp valid while heating only is set when shipped from factory If the shift temp is not enough ex the indoor unit is installed at position higher than 3
152. ividual indoor and outdoor unit combi nations can be checked Example Outdoor Unit 1 Indoor Units 1 1 1 2 1 3 Outdoor Unit 2 Indoor Units 2 1 2 2 2 3 This is necessary for maintenance Always label these Check indoor unit address with the remote controller Press the button for at least 4 seconds and check the indoor unit address with the button Each time you press the button the address changes 1 1 1 2 2 1 2 2 The fan for only the selected indoor unit turns on at high speed so check which indoor unit runs and label the indoor unit address If there is 1 outdoor unit the addresses are 1 1 1 2 When you press the button again the system returns to normal remote control mode SM830082 4 Service procedures Items to Check Prior to Test Run Turn on the power supply switch more than 5 hours before in order to charge the crank case heater Fully open the outdoor service valve after making the leak inspection of field connected tubing vacuuming and gas charging if necessary Check the capacity code setting The factory setting is as shown in the table Double check it The capacity code is set by S4 green or blue 4P DIP switch on outdoor control PCB Outdoor control PCB S4 green or Blue capacity code 4P DIP switch 2094 C I S4 Capacity code No Outdoor PCB Model No 1 2 3 4 24 type ON ON OFF 36 type OFF ON OFF ON 48 t
153. ized Motor MT8 3C DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 28 1 Specifications 1 3 Other Component Specifications A Indoor Unit MODEL No TH3642 Power Transformer ATR IIK244B Rated Primary AC 220 V 60 Hz Secondary BRN 14 V 0 55 A RED RED 14 V 0 55A Capacity Coil resistance WHT WT 480 RED RED 0 89 Ambient temprature 77 F BRN BRN 045 ORG ORG 2 05 Thermistor cut off temperature 277 Thermistor Coil sensor PBC 41E 514 Coil resistance Thermistor Room or coil sensor 1E S42 Coil resistance Electronic expansion valve Valve body HKV 30D24 Coil EKV MOZS584E0 Synchronized Motor MT8 3C DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 29 1 3 Other Component Specifications A Indoor Unit 1 Specifications MODEL No TH4242 Power Transformer ATR IIK244B Rated Primary AC 220 V 60 Hz Secondary BRN BRN 14 V 0 55 A RED RED 14 V 0 3 A Capacity Coil resistance Ambient temprature 77 F WHT WHT 480 RED RED 0 89 BRN 045 ORG ORG 2 05 Thermistor cut off temperature 277 Thermistor Coil sensor PBC 514 Coil resistance Thermistor Room or coil sensor Coil resistance Electronic expansion valve Valve body HKV 30D27 Coil EKV MOZS584E0 Synchroniz
154. kg R22 9 7 4 4 High pressure switch ACB 1UB11 Set pressure OFF kg cm 30 158 ON kg cm 24 2 0 Fan Propeller Number diameter mm 18 3 32 460 Fan speeds 2 AUTO Fan motor Model KFC6T 91D6P x 2 Source 230 208 1 phase 60 Hz No of pole rpm 230 V High 6 879 Nominal output 110x2 Coil resistance Ambient temperature 68 F VLT YEL 11 42 YEL PNK 10 60 BRW WHT WHT VLT 67 14 6485 Safety device Operating temperature 248 9 171 27 Run capacitor 440 V 4 uF x2 Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch des 127 11 63 1 08 DATA SUBJECT CHANGE WITHOUT NOTICE SM830082 24 1 3 Other Component Specifications A Indoor Unit 1 Specifications Power Transformer 12244 Rated Primary 220 VAC 60 Hz Secondary BRN BRN 14 V 0 45 A RED RED 14 V 0 3 A Capacity Coil resistance Ambient temprature 77 F WHT WHT 610 RED RED 1 37 BRN BRN 0 97 ORG ORG 346 Thermistor cut off temperature 277 Thermistor Coil sensor TH2 3 514 Coil resistance D Thermistor Room sensor TH1 KTEC 35 56 Coil resistance Drai
155. larm message will be displayed showing the number of the indoor unit that generated the alarm and the nature of the alarm b In order to monitor more of the service problem history press the SET TEMP 4 g button This will change the service problem history number code number Code number 01 most recent code number 04 oldest NOTE The service problem history keeps four problems in memory c Pressing the a button will clear the entire indoor unit alarm history Pressing the button will restore the normal operating display 2081 M I SM830082 IV 23 4 Service procedures Never press clear button unless you want to erase the accessed data in memory Follow the procedure below only when erasing is necessary To erase accessed data press the 0 button When erasing is finished mark appears on the controller s display Aen After checking the alarm messages be sure to press the button D Check the remote controller itself for correct operation The remote controller has a self diagnostic function to check for problems in the remote controller itself In order to check the shorting plug 2P inserted in the socket 4P on the back of the remote controller circuit board should be moved from RCU Main to RCU CK Ref Fig IV 6 NOTE 1 Be sure that the shorting plug is inserted onto RCU Main during norm
156. n pump PJV 1428AU Rated 230 208 12 5 W Float switch FS 0218 102 MAX Rated Contact rated 50 W DC 5V 0 1 mA Solenoid control valve or coil Solenoid control valve IKV 24D18 Solenoid coil DKV MOZS726E Synchronized Motor MT8 3C SM830082 25 1 3 Other Component Specifications A Indoor Unit 1 Specifications MODEL No Power Transformer IIK224A Rated Primary 220 VAC 60 Hz Secondary BRN BRN 14 V 0 45 A RED RED 14 V 0 3 A Capacity Coil resistance Ambient temprature 77 F WHT WHT 61 0 RED RED 1 37 BRN 097 ORG ORG 3 16 Thermistor cut off temperature 277 Thermistor Coil sensor TH2 3 PBC 4E S14 Coil resistance D D Thermistor Room sensor TH1 KTEC 35 S6 Coil resistance Drain pump PJV 1428AU Rated 230 208 VAG 12 5 W Float switch FS 0218 102 MAX Rated Contact rated 50 W DC 5V 0 1 mA Solenoid control valve or coil Solenoid control valve HKV 30D27 Solenoid coil EKV MOZS742bE Synchronized Motor MT8 3C DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 26 1 3 Other Component Specifications A Indoor Unit 1 Specifications MODEL No O Power Transformer ATR IIK224A Rated Primary 220 VAC 60 Hz
157. ne indoor unit and one Multiple indoor Yes Yes units for one outdoor units remote controller for one No unit side Turn on power supply for indoor units side first Then turn on power supply for outdoor Group control for multiple outdoor units Yes Set the outdoor unit R C address Turn on power supply switch Go next R C line Press A ADD S1 button See P87 Execute auto address operation with the remote controller Finish all R C line Central control for multiple outdoor units Yes CN4 Open Set the outdoor unit R C address Turn on power supply switch Go next No R C line Press A ADD S1 button See P87 Execute auto address operation with the remote controller Yes Finish all R C line Display the combination number EI Set the remote controller to test operation Check according the self diagnostics function table see Sec 12 8 9 10 and if there is a location to correct correct it Is operation possible Note Check the indoor side drain water Return the remote controller to normal NOTE 1 One of CNO006 of all linked outdoor units shold be short 2 In case of using system controller zone registration is required after finishing Test run Regarding the zone registration please refer to page
158. nsformer Correct the connections Replace the indoor unit PCB Replace or repair Replace the Replace the indoor unit s indoor unit PCB power transformer 2095 THS I SM830082 4 Service procedures 2 Symptom LCD on the remote controller displays CHECK E01 Unusual communication between remote controller and indoor unit Replace the remote controller Remote controller judges itself with self diagnostic functions OK Is there an open or a contact defect in the No 1 line of the Correct the wiring remote controller Is there 230 208 V AC between Mis wiring between the power Correct the wiring and pull out the U1 and U2 of terminal plate supply line and indoor outdoor socket connected to the OC plug unit operation lines to replace with the EMG plug Open the inspection pin Is the indoor unit PCB s inspection Yes pin shorted No Replace the indoor unit PCB 3 Symptom LCD on the remote controller displays CHECK E02 Unusual communication between remote controller and indoor unit 2096 THS 1 Replace the remote controller Remote controller judges itself with self diagnostic functions OK Replace the indoor unit PCB 2097 MI SM830082 IV 10 4 Service procedures 4 Symptom LCD on the remote controller is displaying CHECK E04 Unusual communication between the indoor and outdoor units Cut the breaker an
159. o of pole rpm 230 V High 6 879 Nominal output 110 Coil resistance Ambient temperature 68 F 11 42 10 60 BRN WHT WHT VLT 6714 VLT YEL 64 85 YEL PNK Safety device Internal type Operating temperature 248 9 WAT 2 07 Run capacitor 440 VAC 4 uF Heat exchange Coil Aluminum plate fin Copper tube Rows Fins per inch 2 14 1 Face area 22 6 78 0 63 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 1 2 Major Component Specifications B Outdoor Unit MODEL No Source 1 Specifications CH3642 230 208 1 phase 60 Hz Controller P C B Ass y CR CH2442 Microprocessor Control circuit fuse 250 V 3 A Compressor Rotary Hermetic Model C R221H6R Source 230 208 VAC 1 phase 60 Hz Nominal output 2 200 Compressor oil 1 500 Coil resistance Ambient temperature 77 F C R 0 549 C 5 1 525 Safety device Internal type Overload relay models Operating temperature Open 320 9 Close 189 20 Operating ampere at 77 F Run capacitor VAC 400 VAC 40 uF Crank case heater VAC 230 VAC 30 W Refrigerant amount charged at shipment Ibs kg R22 8 82 4 0 High pressure switch ACB 1UB11 Set pressure OFF Ib in kg cm 426 6 84 3058
160. ols Description Symbols Description CM Compressor Motor CR Outdoor Controller FMO1 2 Outdoor Fan Motor RY1 RY5 Auxiliary Relay Compressor Motor Magnetic Contactor 1Y Auxiliary Relay Outdoor Fan Motor Thermal Protector Terminal Plate High Pressure Switch Terminal Current Transmitter O Connector Running Capacitor Power Transformer Crank Case Heater Four Way Valve Fuse Thermistor Outdoor Coil C1 Thermistor Outdoor Coil C2 Thermistor Discharge Gas PTC Thermistor S 854 2 5268 946 00 0 CH3462 S SM830082 Ill 15 3 Electrical data 3 2 Outdoor Units 3 CH4242 6 0 00 876 8929 2 758 M DAN TaANNYD SEI LA LHM LA LHM din LHW 4ojoeuuot S d Jojoeuuo 8 LHM d8 40j euuot oe 13A4r NE TA aw P Lo E 99 40 AYD 4 AYD NH84 cu aH NHA T3Aj4r r TSA Aojo fe zL AHO4 x AH9 LHM SF NH84 cu LHM io o LHM AHOJ v A89 NHB JN N LHM EIS kal ka in ele 9 9 L E AVLOW BE euwe uue3 Hd 9 502 029 THA NHS LHM dZ LHM d AIDE 13A d6 LH
161. ontrol Liquid line vave Sonico i valve Ge line p nipple lt 9 52mm N Strainer Cooling Cycle Heating Cycle 1398 THS I SM830082 49 1 5 Refrigerant Flow Diagram Outdoor Unit CH4242 High pressure Switch Cooling Cycle Heating Cycle 1 6 Operating Range Temperature 1 Specifications Indoor Unit 42 Type Gas line nipple O D 3 4 19 05mm x Heat exchanger Distributor Strainer Electronic ref control valve Liquid line service valve Liquid line O D nipple 3 8 9 52mm 2181 THS I Indoor Air Intake Outdoor Air Intake Maximum 95 F DB 71 F WB 115 F DB Cooling Minimum 67 F DB 57 F WB 0 F DB Maximum 80 F DB 67 F WB 75 F DB 65 F WB Heating Minimum DB WB 17 F DB 15 F WB SM830082 50 1 Specifications 1 7 Cooling Capacity Indoor Unit XH2442 Outdoor Unit CH2442 230V 1 phase 60Hz RATING CAPACITY 24 000 BTU h AIR FLOW RATE 540 CFM CONDENSER AMBIENT TEMP FC WB 75 85 95 105 115 S EE EE 16 020 59 18 480 17 820 15 0 20 360 19 700 22 160 21 500 20 760 19 950 18 600 23 960 23 140 21 790 20 280 18 600 14 330 13 750 13 140 12 460 11 750 63 17 2 16 680 16 130 15 550 14 940 14 260 13 550 18 010 17 430 16 820 16 140 15
162. oor 3 and Automatic control 3 Auto Optional Wired Remote Controller Timer RCS SH80UG 72 hour ON OFF Optional Wireless Remote Controller Timer RCS BH80UA WL 72 hour ON OFF Air deflection Horizontal Vertical Manual Automatic Air filter Washable easy access Operation sound Indoor Hi Me Lo Outdoor Hi 48 44 40 56 Refrigerant control Electronic Expansion Control Valve REFRIGERANT PIPING Limit of piping length 165 50 Limit of piping length at shipment 100 30 Limit of elevation difference between the two units Outdoor unit is higher than indoor unit 165 50 Outdoor unit is lower than indoor unit 100 30 Refrigerant piping Flare type Narrow pipe Wide pipe 3 8 9 52 3 4 19 05 DIMENSIONS amp WEIGHT Indoor unit Outdoor unit Unit dimensions Height 14 9 16 370 48 5 8 1 235 Width 59 1 16 1 500 37 1 32 940 Depth 9 7 16 240 13 3 8 340 Indoor grille dimensions Height 18 3 16 462 52 7 32 1 326 Width 62 9 16 1 589 40 1 016 Depth 11 5 8 295 16 3 8 416 Net weight 73 83 203 92 Shipping weight 90 41 227 103 Shipping volume Cooling Rating conditions Heating Rating conditions 7 7 0 217 19 8 0 56 DATA SUBJE
163. or Unit Outdoor Unit US Ze R C Address on the PCB 0 S2 BLK 0 Factory shipped state 55559 Power supply Single phase Remote controller wirings are wire joint connection Check power supply Check that voltage is within the specified range 10 of the rating Check that power is being supplied NEZ If the following troubleshooting must be done with power being supplied be careful not to touch any uninsulated live part that can cause ELECTRIC SHOCK 230 208V 2085 M I Fig IV 1 9 Check the lead wires and connectors in indoor and outdoor units Check that the sheath of lead wires is not damaged Check that the lead wires are firmly connected at the terminal plate Check that the wiring is correct SM830082 4 Service procedures 2 General Troubleshooting Flow Chart Diagnosis and Remedy When you have found a major problem such as refrigerant not flowing in the system or reduced air circulation come to this section and find the box listing the problem Connected to the box are the main causes of the problem and their remedies To find out which malfunction is happening in your case check the remote controller for an Alarm Message and follow the steps in section 3 A Cooling a Cooling Poor cooling Is setting temp suitable Change the setting temp
164. or unit is activated in group connect wired remote controller with the indoor unit temporarily P30 device contorl to check the alarm message in detail NOTE R C Refrigerant Circuit comp Compressor 6 temp Temperature e PCB Printed Circuit Board SM830082 4 Service procedures 4 LED Indication on the Outdoor Unit s P C B Ass y If something goes wrong with the outdoor unit LED lamps on the outdoor P C B Ass y light up to show the cause of the trouble in addition to the Alarm message on the remote controller LED 2 on LED 1 on Remote P C board P C board controller e e No message Normal Possible cause of trouble Outdoor unit serial communication signal is abnormal Outdoor unit address is duplicated e E06 E07 L04 Other outdoor units are performing auto address and No message detecting refrigerant shortage FMo CM thermal protection is in operation P02 Power supply voltage is abnormal O O P04 P05 High voltage SW activates Negative phase protector activates O E F04 F09 Sensor is abnormal Open or short H01 H02 Abnormal compressor current value is detected E15 E16 Auto address failure Flash at the same time SETTING Auto address is in operation Flash alternately flashes NOTE LED lamps OFF LED lamps ON lights up LED lamps ON blink Outdoor control PCB LED2 D012
165. ormly cooled 6 select a location where the ceiling is strong enough to support the weight of the unit 6 select a location where tubing and drain pipe have the shortest run to the outdoor unit allow room for operation and maintenance as well as unrestricted air flow around the unit install the unit within the maximum elevation difference above or below the outdoor unit and within a total tubing length from the outdoor unit as detailed in Table 1 10 allow room for mounting the remote control unit about 3 ft off the floor in an area that is not in direct sunlight nor in the flow of cool air from the indoor unit Air delivery will be degraded if the distance from the floor to the ceiling is greater than 10 ft 100 1 Specifications Ceiling Mounted Type Ceiling Min 10 inch NOTE The rear of the indoor unit can be installed flush against the wall Min 10 inch Front view discharge lt Min 2 ft Air intake Side view 1091 T I 4 Way Air Discharge Type Concealed Duct Type 1960 X I Wall Mounted Type 2 0930 KI SM830082 1 Specifications Exhaust fan
166. ose attention to all warning and caution notices given in this manual This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death 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 sales service outlet or your certified dealer for additional instructions In Case of Improper Installation The manufacturer shall in no way be responsible for improper installation or maintenance service including failure to follow the instructions in this document When Installing In a Room Properly insulate any tubing run inside a room to prevent sweating that can cause dripping and water damage to walls and floors In Moist or Uneven Locations Use a raised concrete pad or concrete blocks to provide a solid level foundation for the outdoor unit This prevents water damage and abnormal vibration In an area with High 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 Sys tems Install the outdoor unit on a raised platform that is higher than drifting snow Provide snow vents When Connecting Refrigerant Tubing Ventilate the room well in the event that refri
167. otective device in indoor unit Thermal protector in indoor fan motor is activated protective is activated P1 device Protective device in outdoor Thermal protector in outdoor fan motor is activated unit is activated Comp thermal protector is activated P2 Incorrect discharge gas temp of comp P3 High pressure switch is activated P4 Incorrect power supply voltage Negative phase defective phase or voltage drop P5 Incorrect discharge gas temp of comp P17 Protective device in indoor unit Improper wiring connections of ceiling panel P9 is activated Float switch is activated P10 NOTE RCU Remote Control Unit remote controller R C Refrigerant Circuit comp Compressor 6 temp Temperature 6 PCB Printed Circuit Board SM830082 4 Service procedures Alarm Possible Cause of Malfunction message Thermistor Indoor thermistor is either open Indoor coil temp E1 TH1 cannot be detected F1 failure or damaged f i Indoor coil temp E2 TH2 cannot be detected F2 Indoor coil temp E3 TH3 cannot be detected F3 Indoor room air intake temp can not be detected F10 Outdoor thermistor is either Discharge gas temp comp THOA cannot be detected F4 open or damaged Outdoor coil gas temp C2 THOC cannot be detected F25 Outdoor coil liquid temp C1 THOD cannot be detected F7 EE
168. period of the filter timer Ref Fig IV 13 D If the period of filter timer is not suitable for example in case of dirty environment the period can be shortened to half as follows Press the 2 amp buttons at same time for more than 4 seconds In case of group control if you want to change all units in group control collectively pro ceed next step remaining ALL displayed If you want to change a unit individually select the indoor unit address UNIT No with button Select the CODE No 02 with a gt button d Change the No from 0000 to 0001 with a w button Press the button CODE No 06 SET DATA and change from flashing to ON state D If you made a mistake press the button J 1934_M_I 9 Finally press the Z button SM830082 IV 29 4 Service procedures 4 2 Checking the Electrical Components Earthed wire A 1 Measurement of Insulation Resistance The electrical insulation is acceptable when the Probe resistance exceeds 1 MQ Insulation tester Fig IV 14 D Power Supply Wires Terminal plate Clamp the earthed wire of the Power Supply wires with a lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the power wires Fig IV 14 Then measure the resistance between the earthed wire and the other power wire
169. r Unit MODEL No TH2442 Source 230 208 V 1 phase 60 Hz Remote controller Option RCS SH80UA WL Controller P C B Ass y CR TH2442 Control circuit fuse 250 V 3 A Fan Number diameter in Gentrifugal 4 5 1 8 130 Fan motor Model SR4X 51A6P Source 230 208 V 1 phase 60 Hz No of pole r p m 230 V High 1 179 Nominal output 31 Coil resistance BRW WHT 111 0 ORG YEL Ambient temperature 68 F WHT VLT 354 BLK PNK VLT ORG 134 YEL BLK Safety device Operating temperature 266 174 2 27 Run capacitor 440 1 5 uF Electronic refrigerant control valve Solenoid control model DKV MOZS582E0 Coil resistance ORG GRY 46 YEL GRY Ambient temperature 68 F RED GRY 46 BLK GRY Solenoid control valve model IKV 24D18 Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch 3 14 9 Face area 1 81 0 168 Auto louver motor Model No MT8 3C Auto louver motor Rated 240 VAC 3 W 3 rpm Coil resistance Ambient temperature 77 F 16 430 Q 8 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 l 15 1 2 Major Component Specifications A Indoor Unit MODEL No 1 Specifications TH3642 Source 230 208 V 1 phase 60 Hz Remote controller Option RCS SH80UA WL Controller P C B Ass y
170. r unit installation even if in case of twin triple or quartet type 2 3 or 4 indoor units no setting necessary Keep factory shipment state R C address is set in 0 In this case auto address operation takes place automatically for the first time when the power is switched on This takes about a few minutes B Group control Multiple outdoor units In case of group control up to 8 indoor units can be connected with one remote controller before turning the power supply on set the R C address with S2 S3 on the outdoor control PCB R C address Refrigerant circuit address 1 30 C Central control when using the system controller In case of central control when using the system controller that is when linking outdoor units in a network a Before turning the power supply on set the R C address with S2 S3 on the outdoor control PCB b Remove the short plug CNOOG6 2P Black from all outdoor units except any one of outdoor unit 6 Setting of indoor control PCB No setting necessary Each indoor unit address UNIT No R C No is decided after auto address operation Indoor unit No Refrigerant Circuit No R C address Manual setting for indoor unit address can be performed also by remote controller SM830082 IV 36 4 Service procedures 6 R C Address Setting Method Outdoor unit R C address setting method In case of group control or central control set the R C address to
171. ration However the outdoor unit does not defrost The indoor and outdoor units stop when the outdoor protection apparatus activates during the checking operation and automatically restarts unlike in normal operation SM830082 IV 45 SANYO FISHER Service Company CENTRAL REGION 1739 Sands Place Suite G Marietta GA 30067 Phone 770 951 8284 Fax 770 951 2077 July 01 Printed in U S A
172. re of the indoor unit coil to prevent freezing If the refrigerant control is not effective and the temperature continues to drop and stays below 31 F for 2 minutes continuously the control circuit stops the compressor The compressor does not start again until the temperature rises above 34 F The compressor stops for 3 minutes minimum SM830082 II 7 2 Processes and functions 2 6 Condensing Temperature Control Cooling Condensing temperature is controlled by the outdoor heat exchanger coil temperature as sensed by sensor C2 140 OUTDOOR UNIT COIL TEMP C2 CF 431 OUTDOOR FAN FORCED SPEED H MorL H H MorL ELECTRONIC REF CONTROL VALVE OPEN 1926 THS I Fig 9 Chart Explanations and notes H 8 This chart shows how the outdoor fan speed and the electronic refrigerant control valve react to coil temperature to control condensing temperature Sensor C2 is located in the middle of the outdoor unit heat exchange coil When C2 rises above 140 F the electronic refrigerant control valve opens at 50 steps 30 seconds and the outdoor fan speed is forced to change to high H until C2 falls below 131 F SM830082 2 Processes and functions 2 7 Overload Protection Heating This function prevents the air conditioner from overloading A CF 147 144 INDOOR UNIT cou TEMP E2 138 1
173. ristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 5095 Indoor fan speed High 230V 208V Outdoor fan speed Outdoor fan speed Low High Low High 15 Indoor 15 Indoor FCO 14 FCO 13 13 85 30 85 30 22 80 27 12 80 27 12 A 75 24 75 24 770 21 7 1 Operating current A NN EE W A N N N N WS N NN TOT Operating current A S A 3 10 222 Lt a eH 8 F4 8 t 59 68 77 86 95 104 59 68 77 86 95 104 15 20 25 80 85 40 15 20 25 30 35 40 Outdoor ambient temp F C Outdoor ambient temp F C 2186 X S 2187 X S Indoor Unit TH3642 Outdoor Unit CH3642 230V 208V Outdoor fan speed Indoor Outdoor fan speed Indoor Low High temp Low High temp 19 F C 19 F C I 18 18 p I _ 85 30 lt 1 __ 85 30 lt 17 h 11 80 27 80 27 22222 75 24 9 16 75 24 9 16 70 21 e 70 21 15 m 212222 E 14 222 14 222
174. rol Built in O F Fan speeds Indoor Outdoor 3 and Automatic control 3 Auto Optional Wired Remote Controller Timer RCS SH80UG 72 hour ON OFF Optional Wireless Remote Controller Timer RCS SH80UA WL RCS BH80UA WL 72 hour ON OFF Air deflection Horizontal Vertical Automatic Air filter Washable easy access long life fiter 2 500 hr Operation sound Indoor Hi Me Lo Outdoor Hi 44 37 33 56 Refrigerant control Electronic Expansion Control Valve REFRIGERANT PIPING Limit of piping length 165 50 Limit of piping length at shipment 100 30 Limit of elevation difference between the two units Outdoor unit is higher than indoor unit 165 50 Outdoor unit is lower than indoor unit 100 30 Refrigerant piping Flare type Narrow pipe Wide pipe 3 8 9 52 3 4 19 05 DIMENSIONS amp WEIGHT Indoor unit Outdoor unit Unit dimensions Net weight Height 14 1 2 368 48 5 8 1 235 Width Depth 30 9 16 776 13 3 8 41 31 32 1 066 37 1 32 60 27 203 Indoor grille dimensions PNR XHS2432 Net weight Height 3 1 16 78 Width 45 9 32 1 150 Depth 33 27 32 860 15 7 Indoor Outdoor unit Package dimensions Shipping weight Shipping volume Height 14 1 2 368 Width 44 9 32 1 125 Depth 33 9 32 845
175. s If the power supply cord of this appliance is damaged it must be replaced by a repair shop appointed by the manufacture because special purpose tools are required 10 All wiring must be used class 1 Recommended Wire Length and Wire Diameter for Power Supply System Must follow LOCAL ELECTRICAL CODES for wiring Outdoor Unit AWG American Wire Gauge A Power Supply Trade size MOP Power Supply Terminal Base Trade size Model Name W PPJI af Conduit Fuse or HACR 84 of Conduit type circuit braker Capacity Max Wire Diameter AWG 12 CH2442 Max length 69 ft 3 4 in 25A 50A AWG 6 1 1 4 in AWG 12 CH3642 length 69 ft 3 4in 35 A 230 208 50 AWG 6 1 1 4 in AWG 10 CH4242 length 67 ft 3 4 in 45A 50A AWG 6 1 1 4 in Indoor Unit B Power Supply Trade size MOP Power Supply Terminal Base Trade size Type B gl of Conduit Fuse or HACR ia of Conduit type circuit braker Capacity Max Wire Diameter X K T U Max length 330 ft 3 4 in 15 A 25 A AWG 10 3 4 in Control Wiring C Inter Unit Control Wiring D Remote Control Wiring E Control Wiring For Group Control AWG 18 0 75 mm AWG 18 0 75 mm AWG 18 2 0 75 mm Use high voltage wire 300 V Max 3 300 ft Max 1 650 ft Max 1 650 ft Total NOTE 1 With ring type wire terminal 7 Wire joint connection
176. s Fig IV 14 Q Indoor Unit Clamp an aluminum plate fin or copper tube with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on the Clip terminal plate Fig IV 15 Copper Insulation tube or O tester Outdoor Unit metallic part 0639 X S Fig IV 15 Measure the resistance by placing a probe on the terminal plate in the same manner as explained above Fig IV 15 Measurement of Insulation Resistance for Electrical parts Disconnect the connector of the desired electric part from terminal plate P C B Ass y etc Fig IV 16 Similarly disconnect the lead wires from Copper compressor capacitor etc Fig IV 17 tere T Measure the resistance in the same manner as illustrated on the right Insulation Refer to Electrical Wiring Diagram tester woxs Fig IV 16 From fan motor compressor and other NOTE parts If the probe does not enter the hole because the hole is too narrow use a probe with a thinner pin Metallic part Clip Insulation tester oss Fig IV 17 SM830082 IV 30 4 Service procedures Checking the Protective Devices Disconnect the connector which consists of P plug and S socket when you want to check the protective device Then check continuity among plug s and or socket s terminal as in Fig IV 18 Normalit
177. s Electric Wiring Diagram Schematic Diagram III 12 SM830082 Hl 1 3 Electrical data Indoor Units 3 1 X 1 00 0 6 8928 2 vS9 AN jeuiuue l yey due 19 ce e ZH1 HO 1 5 N45 A45 LHM LHM Oel IIA 6 2 5 eft 9 s v e e 1 XH2442 XH3642 XH4242 jeuiuue uue3 jeuiuue uue3 l Lul na de z 1 S THA NHO 146 yueg CL aur jonuog yun Joopino 4 Way Air Discharge Semi concealed Type wesbeig 21179944 e SM830082 III 2 3 Electrical data 4 Way Air Discharge Semi concealed Type XH2442 XH3642 XH4242 le fo HelelsI9IvI HsIselvsI F e Room Thermistor o pe EF d a L TH1 Indoor Coil E1 WP TH2 Indoor Coil E2 NO TH3 Indoor Coil E3 CMY TH4 To Outdoor Unit loe is Qu Description Symbols Description
178. s it will not start running again for 3 minutes If you change the operation mode HEAT COOL or FAN during the cooling cycle the control circuit stops the compressor for 3 minutes For 5 minutes after the compressor is first turned on and for 3 minutes after it is turned off the compressor is not controlled by the room sensor Thermo ON When room temperature rises 2 F 4 F when set on body sensor above the set temperature T T 2 F or T 4 F when set on body sensor Compressor ON Thermo OFF When the room temperature is 2 F below the temperature T Compressor OFF SM830082 2 B Heating REMOTE CONTROL SENSOR Only for wireless remote controller SET 2 F SETTING TEMP SET 2 F BODY SENSOR 2 F SET TEMP 7 F SHIFT 2 F SET TEMP COMPRESSOR 1 OUTDOOR FAN H OR M 2 INDOOR FAN 2 STANDBY 88 F INDOOR HEAT EXCH COIL TEMP E2 SOLENOID COIL 4 WAY TEMP OPERATION BUTTON 81 F 77 F THERMO ON THERMO OFF 2 Processes and functions THERMO ON THERMO OFF THERMO THERMO ON dns UNE M THERMO OFF MORE THAN MORE THAN 5 MINUTES 3 MINUTES 5 MINUTES 3 MINUTES gt lt gt lt gt lt gt
179. strong wind and the indoor unit may freeze SM830082 102 B Precautions When Installing in Heavy Snow Areas 1 Specifications 1 The platform should be higher than the maximum snow depth Fig 2 5 In regions with snow fall the outdoor unit should be provided with a platform and snow proof duct 2 The two anchoring feet of the outdoor unit should be attached to the platform and the platform should be installed beneath the air intake side of the outdoor unit The platform foundation must be solid and the unit must be secured with anchor bolts When installing on a roof subject to strong wind countermeasures must be taken to prevent the unit from being overturned m Dimensions of Snow Wind proof Ducting and Refrigerant Tubing Space for Installation 2 4 Duct 12 2 2 Duct Outdoor Unit Min 4 12 Unit inch 1117 C I1 103 X x Without snow proof ducting Low platform Snow proof ducting High platform 0937 C I Fig 2 6 Fig 2 5 Higher than the maximum snow depth Intake Platform foundation About 1 2 of the unit height 0488 C I Fig 2 7 Example of Installation 0490 C I Fig 2 8 SM830082 B ELECTRICAL WIRING General Precautions on Wiring 1 Be
180. t min 540 460 380 S E E R H S PF BTU Wh 10 0 7 0 7 0 ELECTRICAL RATINGS Voltage rating VAC 208 230 Available voltage range 187 253 Running amperes 10 9 11 3 Power input 2 220 2 500 2 100 Maximum overcurrent protection 25 FEATURES Controls Microprocessor Low ambient control Built in O F Fan speeds Indoor Outdoor 3 and Automatic control 3 Auto Optional Wired Remote Controller Timer RCS SH80UG 72 hour ON OFF Optional Wireless Remote Controller Timer RCS BH80UA WL 72 hour ON OFF Air deflection Horizontal Vertical Manual Automatic Air filter Washable easy access Operation sound Indoor Hi Me Lo Outdoor Hi 45 42 40 53 Refrigerant control Electronic Expansion Control Valve REFRIGERANT PIPING Limit of piping length 165 50 Limit of piping length at shipment 100 30 Limit of elevation difference between the two units Outdoor unit is higher than indoor unit 165 50 Outdoor unit is lower than indoor unit 100 30 1 4 6 35 3 4 19 05 Indoor unit Outdoor unit 14 9 16 370 28 15 16 49 7 32 1 250 37 1 32 8 9 32 13 3 8 18 3 16 32 17 32 52 23 32 1 339 40 10 11 32 263 16 3 8 18 157 Refrigerant piping Narrow pipe Flare
181. te 2 Individual auto address operation for each 2 refrigerant circuit D D To select each refrigerant circuit individually and set addresses automatically press the and Ca buttons at the same time for more than 4 seconds then press the 4 C _ button once to set CODE No Al CODE No A1 Auto address operation Select R C No which you want to execute the auto address operation with button Press the button The auto address operation will start CODE No changes from flashing to ON state If the error is happened during the operation the alarm message will display Check and remove the cause If you want to interrupt the operation press the button then the unit stands in waiting mode Press the button If the auto address operation finishes the display will disappear Execute the operation of the other R C line in the same way by following the above steps 2 to 3 Complete the auto address operation by pressing the button Required time for auto address operation In case of group control a few minutes for each R C In case of central control max about 20 min for each R C IV 38 matic address setting When installing multiple units match the indoor unit address numbers and the outdoor R C address numbers and display them at an easy to check location near the nameplate with an oil based magic marker or other indelible marker so that the ind
182. te pause if the air conditioner is ready for Thermostat ON it starts again However when the circuit fails to detect the current twice in a row the remote controller displays alarm message Failure of compressor Current Detection SM830082 1 17 2 Processes and functions 2 16 Electronic Refrigerant Control Valve Control The circulation volume of the refrigerant is controlled by a pulse type electronic control valve When the power is switched ON the opening degree of the electronic control valve is controlled between 90 and 480 steps after setting the initial step at the time when the thermostat is ON Contents and Order of control Cooling Heating Wi Start Start Discharge gas temperature control Discharge gas temperature control Outdoor unit coil temperature control Freeze prevention control High load prevention control Heating start up control Refrigerant flow distribution control Refrigerant flow distribution control Discharge gas target temperature Discharge gas target temperature control Fuzzy control control Fuzzy control X Repeat control in accordance with the priority order 0451 M S Even though the operation is performed every 30 seconds the control of discharge gas temperature high load prevention outdoor unit coil temperature and freeze prevention activates when it occurs 1 Refrigerant flow distribution control At the control of flexible
183. temp F C 320 S 300 75 24 560 LT 70 21 In 65 18 B 260 TT LA a 240 gt Ga S 220 o 200 41 180 14 23 32 41 50 59 68 710 5 0 5 10 15 20 Outdoor ambient temp F C 2229 X S Low Pressure Low pressure characteristics versus outdoor ambient temperature and indoor temperature Indoor relative humidity 50 Indoor fan speed High 230V 208V 90 Indoor temp A 80 F C D 70 d 75 24 5 60 70 21 o 2 1211 65 18 5 50 F 5 40 Zaenal o gt 30 L 14 23 32 41 50 59 68 710 5 0 5 10 15 20 Outdoor ambient temp F C 2230 5 SM830082 89 1 Specifications 1 10 Noise Criterion Curves 6 4 Way Air Discharge Semi concealed Type MODEL XH2442 SOUND LEVEL HIGH 38 dB A NC 31 LOW 31 dB A NC 23 CONDITION Center Under the unit 4 9 ft SOURCE 208 230V 1Phase 60Hz 60 50 40 OCTAVE BAND SOUND PRESSURE LEVEL dB 30 A 2 APPROXIMATE g THRESHOLD OF S 0 HEARING FOR S CONTINUOUS NOISE m 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER F
184. these things already and can go directly to the procedures and information he needs the less experienced technician will better understand what to do even before he arrives on the job and therefore be better able to work by himself as well as assist the more experienced technician TABLE OF CONTENTS 1 SPECIFICATIONS erneer u uu Kap NR kd e e Eu en Geb a jara pa deme 1 1 1 Unit Specifications E l 2 1 2 Major Component Specifications 12 Ier RUIN m m aa A eaaa aa 12 B Outdoor UMMS 22 1 3 Other Component Specifications 1 25 1 4 Dimensional Data E I 38 AV UNIS ere 38 UMIS eege 47 1 5 Refrigerant Flow Diagram I 49 1 6 E E lee e EE 1 50 Cooling Capacity asaos m 51 1 8 Heating Capacity Aet 1 71 1 9 P rtorimaree MR ER A E a daha KG a ea aa eend 72 1 10 Noise Criterion GUSB a teaser ja NG ANA aa aa I 90 1 11 Increasing the Fan Speed l 95 All TOW Distance Chart u L aia I 96 Jet Installation Instr uchons u u u u EE 99 2 PROCESSES AND FUNCTIONS sen Il 1 2 1 Room T
185. tions 1 3 Other Component Specifications A Indoor Unit Power Transformer ATR IIK244B Rated Primary AC 220 V 60 Hz Secondary BRN BRN 14 V 0 55 A RED RED 14 V 0 3 Capacity Coil resistance WHT WT 480 RED RED 0 89 Ambient temprature 77 F BRN BRN 045 ORG ORG 205 Thermistor cut off temperature 277 Thermistor Coil sensor PBC 41E 54 Coil resistance Thermistor Room or coil sensor Coil resistance Solenoid control valve or coil Solenoid control valve IKV 24D11 Solenoid coil DKV MOZS582E0 Synchronized Motor M2EA24ZA01 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM830082 33 1 3 Other Component Specifications A Indoor Unit 1 Specifications MODEL No a Power Transformer ATR 12448 Rated Primary AC 220 V 60 Hz Secondary BRN BRN 14 V 0 55 A RED RED 14 V 0 3 A Capacity Coil resistance Ambient temprature 77 F WHT WHT 480 RED RED 0 89 BRN BRN 045 ORG ORG 2 05 Thermistor cut off temperature 277 Thermistor Coil sensor PBC 41E 54 Coil resistance Thermistor Room or coil sensor Coil resistance Electronic expansion valve Valve body HKV 30D24 Coil EKV MOZS557E0 Switch Assy s SW KHS2432 Synchronized Motor M2EA24ZA01 DATA SUBJECT TO CHANGE WITHOUT NOTICE SM83008
186. tions kW 0 08 0 07 0 18 0 17 2 04 1 98 2 30 2 22 A 0 4 0 4 0 9 0 9 11 0 11 7 12 3 13 0 Full load conditions kW 0 08 0 07 0 18 0 17 2 46 2 44 2 72 2 68 Starting amperes A 1 1 1 1 66 60 68 62 6 Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 4 0 4 0 9 0 9 10 0 10 9 11 3 12 2 Rating conditions kW 0 08 0 07 0 18 0 17 2 24 2 19 2 50 2 43 A 0 4 0 4 0 9 0 9 11 1 11 7 12 4 13 0 Full load conditions kW 0 08 0 07 0 18 0 17 2 52 2 44 2 78 2 68 Starting amperes A 1 1 1 1 66 60 68 62 Cooling Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 115 F DB Heating Rating Conditions Indoor Air Temperature 70 F DB 60 F WB Outdoor Air Temperature 47 F DB 43 F WB Full Load Conditions Indoor Air Temperature 80 F DB F WB Outdoor Air Temperature 45 F DB 35 F WB SM830082 1 115 Indoor model KH3642 Outdoor model CH3642 1 Specifications Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 208 V 1 phase 60 Hz 230 208 V 1 phase 60 Hz A 0 5 0 5 1 8 1 8 12 6
187. ty between contactors MODEL FMCA 1UL Push button on Pair of terminals the magnetic contactor R U S V T W 31 32 no press YES press YES YES YES Solenoid coil of 4 way valve 20S Outdoor unit Measure the coil resistance Measure the resistance between No 1 BLK lead wire and No 2 BLK lead wire terminals of 2P BLK socket connected to the solenoid coil Refer 1 3 Other component specifications SM830082 IV 34 4 Service procedures 4 Thermistor Characteristic Curv 1 Room temp sensor TH1 KTEC 35 2 Indoor heat exch coil sensor TH2 ET TH3 E2 Outdoor heat exch coil sensor TH6 C1 TH7 C2 PBC 41E 40 c 35 30 25 20 Resistance Resistance N Q N CO 4 5 14 23 32 41 50 59 68 50 59 68 77 86 95 104 Temperature F gt Temperature 1045_ _1 1044_ _1 3 Compressor discharge gas temp sensor TH8 PTC 51H Resistance 176 194 212 230 248 266 Temperature F 1149 THS I SM830082 4 Service procedures 5 PCB Setting 6 Setting of outdoor control PCB A Standard control single outdoor unit In case of single outdoo
188. type Wide pipe DIMENSIONS amp WEIGHT Unit dimensions Height Width Depth Indoor grille dimensions Height Width Depth Net weight Shipping weight Shipping volume Cooling Rating conditions Heating Rating conditions 18 23 170 0 163 12 3 0 349 DATA SUBJECT TO CHANGE WITHOUT NOTICE Room temperature 80 F DB 67 F WB Ambient temperature 95 F DB 75 F WB Room temperature 70 F DB 60 F WB Ambient temperature 47 F DB 43 F WB Low temp conditions Room temperature 70 F DB 60 F WB Ambient temperature 17 F DB 15 F WB 10 SM830082 1 1 Unit Specifications MODEL No Indoor Unit 1 Specifications POWER SOURCE Outdoor Unit KH3642 CH3642 230 208 1 Phase 60 Hz PERFORMANCE Cooling Heating Capacity BTU h 33 000 32 000 40 000 25 000 39 000 24 000 Moisture removal High Pints h 10 6 10 6 Air circulation H M L cu ft min 830 710 590 S EER H S PF BTU Wh 10 3 10 5 7 6 7 6 ELECTRICAL RATINGS Voltage rating 230 208 230 Available voltage range 187 253 Running amperes 14 9 15 5 17 8 Power input 3 290 3 120 3 860 3 000 Maximum overcurrent protection 40 FEATURES Controls Microprocessor Low ambient control Built in O F Fan speeds Indoor Outd
189. very low or OFF This condition occurs in the following 3 cases e During Thermo OFF refer to 2 1 B Room Temperature Control Heating During the defrosting operation refer to 2 10 Defrosting Control Heating e Until either the coil temperature E2 reaches 81 F or when a maximum of 6 minutes has past The indoor fan motor operates in L instead of LL for seconds as it starts to give the fan an initial boost 92 DA lt 6 MINUTES gt 88 INDOOR UNIT COIL TEMP 77 4 50 ser AUTO H LL LLOFF LL L o FAN FAN M LL LL OFF LL L M L LL LL OFF LL L L L STANDBY INDICATOR STANDBY APPEARS LL Very low speed M Medium speed Etn SPE H High speed 1135 THS 1 Fig 3 Chart Summary and Explanations The main idea of this chart is to show that the indoor fan speed increases and gets closer to the set fan speed as the coil temperature E2 rises The indoor unit s coil temperature is taken from sensor E2 located in the middle of the indoor heat exchange coil The dotted line shows that the indoor fan motor is OFF When the temperature at sensor E2 falls below 50 F the indoor fan motor stops running SM830082 1 4 2 Processes and functions 2 3 Automatic Fan Speed Indoor Unit By pressing the FAN SPEED button on the remote controller the fan speed can be set at one of four steps AUTO HI
190. y of the protective device can be judged by the following table The Protective Device is proved normal if there is a continuity between terminals Socket Multimeter Fig IV 18 0642 X S Indoor fan motor thermal protector 49Fl Indoor unit Disconnect the connector which leads to the indoor fan motor FMI Check the sockets terminals Compressor motor thermal protector Outdoor unit Disconnect the wires from terminals of compressor e Check the terminals of compressor Outdoor fan motor thermal protector 49FO Outdoor unit Disconnect both the connector which leads to the outdoor fan motor FMO e Check socket s terminal SM830082 IV 31 4 Service procedures 3 Checking the Electrical Parts D Power transformer TR1 Indoor unit Measure the coil resistance e Primary 230 208V Measure the resistance between No 1 and No 3 WHT lead wires terminals of 3P WHT socket connected to power transformer Secondary 14 8V Measure the resistance between No 1 and No 2 RED lead wires 14 8V Measure the resistance between No 3 and No 4 BRN lead wires Refer to 1 3 Other component specifications 2 Power transformer TR Outdoor unit Measure the coil resistance e Primary 230 208V Measure the resistance between No 1 and No 3 WHT lead wires terminals of SP WHT socket jointed to power transformer
191. you are finished or the air conditioner can be damaged because it will not cycle on and off normally To protect the air conditioner from overloading the outdoor unit will not start running for 3 minutes after power is applied or the unit is turned OFF Press the TEST RUN button on the remote Alarm message controller Fig IV 24 Press the i op ON OFF operation button to start the test run Press the MODE button to select either COOL or HEAT mode When the test run has started TEST shows on display of the remote controller 53539039 3 REMOTE CONTROLLER During the test run the air conditioner runs continuously and the thermostat does not control the system D After the test run press the button once again to cancel this mode and check that TEST is not shown on the display The TEST RUN button is N CAUTION used only for servicing the air conditioner Do not press TEST RUN CHECK ON OFF operation MODE button this button for normal button button operation or the system Fig IV 24 may be damaged SM830082 IV 40 4 Service procedures Test Run Procedure Turn on RCU address SW of sub remote control unit Multiple remote control Recheck the test items before test operation Check the indoor and outdoor unit combination wiring Single type O
192. ype ON ON OFF ON SM830082 IV 39 4 Service procedures 10 Test Run B Preparing for Test Run B 6 Before attempting to start the air conditioner check the following Power must be turned ON at least 5 hours before 1 All loose matter is removed from the cabinet attempting test run especially steel filings bits of wire and clips 2 The control wiring is correctly connected and all electrical connections are tight Power mains switch 0765 C I 3 The protective spacers for the compressor used Fig IV 22 for transportation have been removed If not remove them now Narrow tube service valve 3 way valve 4 The transportation pads for the indoor fan have been removed If not remove them now 5 The power has been connected to the unit for at Wi ide tube service least 5 hours before starting the compressor The valve ball valve bottom of the compressor should be warm to the AM touch and the crankcase heater around the feet of the compressor should be hot to the touch UA Fig IV 22 Fully OPEN Fully OPEN 6 Both the wide and narrow tube service valves are 1371C open If not open them now Fig IV 23 Fig IV 23 6 Test run procedure The purpose of the test run function is to let you control the operation of the unit directly without the thermostat turning the unit on or off As indicated in the following procedure switch out of TEST RUN when

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