DVC/DVH 09/12/18/24
Contents
1.2.
3. PFC D US KFR26W BP2 BP3CISV D 13 WP2 1 202302130902 CN4 PFC C CN36 Ss lt te F6 T PFC B BR1 Sas 1 R21 2 A c2 2 CNS au E BLUEENS DSAI N ZR1 a sel L CN6 9 BR Es Le Eart c5 PTC1 C4 R7 Ll YELLOW 7 N B 15 lt c24 22 mM m DI 2 Ol 165 x 250 ie
4. a ZRi 7 2 c22 4 N IN L1 B e H R33 Q cio a Dro 2 9 HR39 52 z D E Os th Fee Das zl Ix EN dL piqa D R29 BRI 9 205 250VAC M MED L1 A 1 R40 NM x C94 j TI 40409 20 2 o panre 14 818152 Cei idee ra 0000 o 99 R16 Im im B 218 OF 0000 es oO M gt _ 18 R8 amp ol IC3 Gare 8 PARK _ Lo IEEBIR37 51 i b dE MEE 40 1 RYS s O REES eto J ES GER 7 Cy EEG R C27 E R400 c29 m IC mo d m IN cud Pre IC8 oial BB jS 2300 4 oo CXO R38 R25 ET CN301 gt T WO W Oo CN7 RED 7 Ll amp 0302 ae lt 00000000 as On E302 c oO D3 T CN302 NE 9 _ Ow 200000000 P oq 1
5. FAN C 202302130864 en CN3 C Q 1 6 x Lu ce 653 2012 11 16 Eia SSRI T R14 T m z gt 1 d T 053 4 C53 5 _ b CN32 CN26 RYS 2 C 4 WAY L CN33 CN31 DJRD DJRD gt BOO E O CN34 IPM Bal C18 N A C 5 PTC2 CN6 ZR2 2 Earth c29 C24 a SAT d DEMENS H BE 7 1 165 C14 R6 N 15 Q N V l cle u T R16 215 bee 5 gt n eoe Ice Yo E mm ES clo 5 RePCES 19 0 5 7 R93 D9 R7 R13 c30Res 7 15626 ces R94 FAULT CEPort O B H od pa R95 H ISU 1 of 16 6 C21 C22 E C31 11000 C39 H 45V Rie 75 C40In m cise 03 J a YY H E R97 H VSS 5 02 R70 R69 R72 R7 ES u 635 30 33 lai Gl CNS R49 E 490 CN7 R39 HH 0 H 38 C41C44 olla R37 R98 4 4 B Imm m 235 R44 Lords 015 0 E29 TH H H IH 1l R46 6451
6. INDOOR UNIT HEAT EXCHANGER SENSOR BLACK q HARGE SENSOR h OUTDOOR MAIN PCB 513 OUTDOOR FAN REACTOR OUTDOOR WIRING DIAGRAM 15 OLP TEMP SENSOR cal 112 DVC DVH Inverter Mini Split 6 Installation Details 6 1 Electrical All electrical wiring must be done according to local codes Additionally installations in the USA must conform to the current National Electric Code NEC and Installations in Canada must conform to current Canadian Electric Code CEC Nameplate data indicates the operating voltage phase current protection and minimum voltage maximum over The contractor is to provide an individual branch circuit for over current protection for the unit as required by code Some codes may require a disconnect between the indoor and outdoor unit Run power supply wiring through a weatherproof disconnect box and conduit to the unit connection Disconnects are required to be within sight and easy reach of the unit usually within 3 feet Circuit breakers and disconnect switches should be properly sized based on the required codes and the units nameplate requirements Check the unit wiring diagram for the number of conductors required Ensure that the proper AWG gauge and type of wired is used to comply with code and the unit s nameplate Route neatly and protect from sharp edges and
7. DE 17 8 BIECtronic DISplay FUNCUONS uuu aA 18 ree 18 8 2 b e o 2 UM CUO me MO EN Ne 18 OSI 18 9 Operation Modes and FUNCTIONS 19 ONV GE 19 VOCE reos e E EI E 19 21 m EN LL DM EE 21 23 9 4 Delrost MOGG en een 23 24 9 5 Evaporator Coil Temp Protection u near ee 24 9 6 oes 24 25 97 DIV MOOS an se 25 9 6 Forced Operation ae a HE 25 9 9 Timer FUNCION ABER IE qe M de 25 26 910 SIGS T M 26 e c P 26 9 12 Automate Panel FUNCION oM t adiret desea d 26 CHEIN nux eee 26 THOUDIESNOOUING zu Eee 27 10 1 9 rt in Ra 27 10 2 Outdoor Unit Errors and Troubleshooting
8. lt 86 F 30 C gt 50 F 10 C Outdoor Ambient 5 F 122 F 5 F 86 F 32 F 122 F Temperature 15 C 50 C 15 C 30 C 0 C 50 C 1 If the unit is used outside of the above conditions certain safety protection features may come into CAUTION operation and cause the unit to operate abnormally 2 If the room relative humidity is greater than 80 the surface of the indoor unit may attract condensation To lessen the chance for condensate dripping set the vertical air flow louver to its maximum angle vertically to the floor and set the fan mode to HIGH 17 DVC DVH Inverter Mini Split 8 Electronic Display Functions 8 1 Abbreviations 1 Indoor room temperature 2 Coil temperature of evaporator T3 Coil temperature of condenser T4 Outdoor ambient temperature T5 Compressor discharge temperature Ts Temperature Set Point 8 2 Display functions 8 2 1 Icon Identification on indoor display board signal receiver This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in Temperature indicator Displays the temperature settings when the unit is operational also displays any error codes for diagnosis and troubleshooting Receives the signal from the remote Signal control Receiver 18 Heat Controller 8 3 Main Protection 8 3 1 Compressor Three Minute Time Delay The
9. Off I3COOL Decrease I2COOL Hold I1COOL Resume I1COOL I2COOL I3COOL Amps Amps Amps If the running current is too high above I3COOL in the Off zone of the chart above the compressor will stop Between and I2COOL in the Decrease zone the compressor will lower the frequency to the lowest level The Hold zone allows the compressor to continue to run at the current frequency Note When the unit is in hold zone for 3 minutes the compressor frequency will rise to the next highest level This rise in frequency can occur twice at most while in this zone The Resume zone places no limitation on the frequency B DVCO9SD 0 B DVHO9SD 0 B DVC12SD 0 B DVH12SD 0 B DVC18SD 1 B DVH18SD 1 B DVC24SD 1 B DVH24SD 1 Heat Controller 9 2 2 Outdoor Fan Operation Cooling Mode The outdoor fan operates based on the Outdoor Ambient Temperature T4 4 F C High 72 22 68 20 Low When the outdoor ambient temperature 4 is above 78 F 22 C the outdoor fan runs high speed however when the temperature is below this the fan speed decreases to low and continues to run at low speed when the temperature is 68 F 20 C or below 9 4 2 3 Indoor Fan Operation Cooling Mode In cooling mode indoor fan runs all the time and the speed can be set to high medium low or auto When the fan is placed in auto mode while the unit is in cooling mode the aut
10. 28 31 103 Diagnos s and PER 32 48 104 SEIVIEE ser ee Meere ee 49 WARNING Installation MUST conform with local building codes or in the absence of local codes with the National Electrical Code NFPA7O ANSI C1 1993 or current edition and Canadian Electrical Code Part1 CSA C 22 1 Where conflicts exist the local and or national codes shall prevail The information contained in the manual is intended for use by a qualified licensed service technician familiar with safety procedures and equipped with the proper tools and test instruments Installation or repairs made by unqualified persons will void the warranty and may cause hazards or incorrect operation Failure to carefully read and follow all instructions in this manual can result in equipment malfunction property damage personal injury and or death Heat Controller 1 Precaution 1 1 Safety Precaution B prevent injury to the user or other people and property damage the following instructions must be followed B Incorrect operation due to ignoring instruction will cause harm or damage Before service the unit be sure to read this service manual at first 1 2 Warning gt Installation B Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock B For electrical work contact the dealer seller a qualified electrician or an
11. DVC DVH Inverter Mini Split Heat Controller More than 14 30cm 7 More than 24 60cm SEM More than tft 30cm Service space Fence or Obstacles More than 2ft 60cm L More than 2 5ft 70 EEE 2 3 Features Note For Reference Only Your model may differ and is subject to change Auto Restart Sleep Mode Turbo Mode Horizontal amp Vertical Swing Function Anti Cold Blow Louver Position Memory Function Silver Ico Filter Refrigerant Leakage Detect Low Ambient Self Diagnosis Function Golden Fin Anti Rust Cabient Self Clean Valve Protection Cover Follow Me Slump Heater Low Heating Room Temp Compressor Crankcase Heater Heat Controller DVC DVH Inverter Mini Split 2 3 1 Description of Features and Functions Auto Restart The unit will memorize the set conditions before a power failure and resume operation automatically when the power re starts e Sleep Mode This feature helps keep the room conditions at the most desirable levels when you sleep e Turbo Mode Turbo mode allows the unit to quickly heat or cool and room at a high speed fan setting e Anti Cold Blow In heating mode this feature prevents cold air from blowing until warm air is ready to be delivered e Silver lon Filter The silver filter sterilizes bacteria in the air stream by decomposing cell wall of bacteria Low Ambient Operation Allows the unit to operate under low outd
12. 7 7 25 Low 9 2 Cooling Mode 9 2 1 Compressor Operation Cooling Mode The maximum operating frequency follows the chart below based on the outdoor ambient temperature 4 DVC DVH Inverter Mini Split reaches level F1 and will continue to run at this level When T3 lt 129 F 54 C the compressor will keep running at the current frequency However if T3 lt 126 F 52 C the compressor will not limit the frequency and resume to the former frequency based on demand But if T3 gt 140 F 60 C for 5 seconds the compressor will stop until T3 126 F 52 C 8 4 2 10 Evaporator temperature protection When T2 lt 32 F 0 C the compressor will stop and will restart when T2241 F 5 C At 32 0 ST2x39 F 4 C the compressor frequency will be limited and decreased to the lower level However when the temperature is 39 4 lt 2 lt 45 7 lt the compressor will keep the current frequency At T2 gt 45 F 7 C s the compressor frequency will not be limited F G l Fmax F4 113 45 109 4 43 104 40 Fmax F7 118 4 38 88 7 31 5 Fmax F8 85 1 29 5 71 6 22 Fmax F6 68 20 Fmax F3 19 DVC DVH Inverter Mini Split However if the unit is turned on using the remote control the compressor will run at the Fmax frequency for 7 minutes according to the outdoor ambient temperature T4 But after 7 minutes the operation will take into ac
13. T sno idle fede sage sal 1 1 OPTIONAL Y G ION E V SWIMG MOTORI SWIMG MOTOR OPT ONAL OPTIONAL DIL OPTIONAL HEATER 1 1 2 1 Ve DISPLAY BOAR EPEA rn INDOOR WIRING DIAGRAM 13 DVC DVH Inverter Mini Split Heat Controller B DVC24SD 1 B DVH24SD 1 SER INE Ly h p j VERTICAL GENERATOR SW T ij MOTOR p FAN CAPACITOR BOARD BLACK RED iiBLAcK 12345 Pol 1 WHITE WHITE MAIN BOARD GN Noi LEER kas fe element opfonal fhe actual shape 112 S am TERMINAL ee TO OUTDOOR UNIT 14 Heat Controller 5 2 Outdoor Units DVC DVH Inverter Mini Split A DVC09SD 0 A DVHO9SD 0 A DVC12SD 0 A DVH12SD 0 202037590789 165 OPTIONAL EXPANSIVE CY M EISIHARBE SEHR OUTDOOR MAIN PCB pese 2 33 7 NOTE Four way valve is used in the Cooing amp Heating unit only aue CAPACITOR OUTDOOR WIRING DIAGRAM A DVC18SD 1 A DVH18SD 1 202037890976 4l BLUE 2 RED _ 3 BLACK i HEATER 2 HEATER 1
14. 68 48 Heat Controller DVC DVH Inverter Mini Split 10 4 Pressure on Service Port 10 4 1 Cooling 115 78 88 _ 83 91 93 91 96 115 23 89 29 44 35 40 56 46 11 115 29 44 35 40 56 46 11 70 59 i 75 63 80 67 75 23 89 85 29 44 95 35 105 40 56 115 46 11 49 DVC DVH Inverter Mini Split Heat Controller 10 4 2 Heating Chart 57 53 47 43 37 33 27 23 17 13 13 89 11 67 8 33 6 11 2 78 0 56 2 78 5 8 33 10 56 57 53 47 43 37 33 27 23 17 13 4 x xo 5 4n 45 39 _ s 45 sr 3 3 _ 57 53 47 43 37 33 27 23 17 13 13 89 11 67 8 33 6 11 2 78 0 56 2 78 5 8 33 10 56 T 57 53 47 43 37 33 27 23 17 13 13 89 11 67 8 33 6 11 2 78 0 56 2 78 5 8 33 10 56 50 Heat Controller DVC DVH Inverter Mini Split This page is left intentionally blank 51 HEAT CONTROLLER Due to ongoing product improvements specifications and dimensions are subject to change and correction without notice or incurring obligations Determining the application and suitability for use of any product is the responsibility of the installer Additionally the installer is responsible for verifying dimensional data on the actual product prior to beginning any installation preparations Incentive and rebate programs have precise
15. ce 0007s 12 92026 3 19183 198 0 80132 0 26408 3 07075 199 0 77709 0 25757 2 95896 0 75373 0 25125 55 2 84421 0 73119 0 24512 0 62973 0 61148 0 59386 0 57683 0 56038 0 54448 0 52912 0 51426 0 49989 0 486 0 47256 0 45957 0 44699 0 43482 0 42304 0 41164 0 4006 0 38991 Oo N co CD 00 70 71 56 2 7382 0 70944 0 23916 0 23338 0 22776 0 22231 0 68844 0 66818 0 64862 139 201 203 205 207 208 210 39 DVC DVH Inverter Mini Split Heat Controller T5 Temperature Sensor Resistance Value Table c v T v 20 5427 20 68 60 140 100 212 3 702 19 511 9 21 70 61 142 101 214 3 595 18 72 62 144 102 216 3 492 AT 4559 23 73 63 145 103 217 3 392 16 4305 24 75 64 147 104 219 3 296 15 40607 25 77 65 149 105 221 3 203 14 3843 26 79 66 151 106 223 3 113 43 3633 27 81 67 153 107 225 3 025 12 3436 28 82 68 154 108 226 2 941 41 3254 29 84 69 156 109 228 286 10 377 30 86 70 158 110 230 2 781 9 2913 31 71 160 114 232 2 704 8 2759 32 90 72 162 112 234 263 7 2614 33 91 73 163 113 235 2 559 6 2478 93 74 165 114 237 2 489 5 2349 35 95 75 167 115 239 2422 4 228 36 97 76 169
16. cu D4 7 C40 gt R48 ja E303 RBS z En CN303 al _ 241 256 e 241004 U e us IC16 NES a 0 0 Exhaust 16 re y 71 SE Ics one BEI 93 H ala ee C36 1014 agas H 5 5 GE anit d a I ug o 0000000000000 00 16 7 aSa 0000 C315 N E B B 00613 eal 559555 0 HE 07 Baca U o x C63 eg l B ici Ferry EXC 00000000000000 m DUR65 5 0 104 o0 15 mm R46 R116 LEGIR 7 B os OR eas 200551818645 0000 0000 eo DO 17 Css 0000 0000 Ej n P106 90 a Bu R52 R55 R56 E z Brera 7 06 9 0 oe Bald 6945 R 8 o 5 X R64 C49 B B R105 0955699592555 3 TEE Es 0970 5958 D ub 5 EB Nm oO OG oA Oo cas S a Born 7 ajo ID o E IPM300 EURE i q ll 8 LEDI Lene o E20 19 O cp CE KFRAS8W BP2CGGA3P D13 WP2 e rODAS 202302130887 This board contains four LED lights shown above This image is for reference only L
17. 111 44 75 83 90 F 95F 97 F 102 F 24 C 28 C 32 C 35 C 36 C 39 C Notes compressor stops due to the room temperature rising the indoor fan will be 23 DVC DVH Inverter Mini Split forced to run for 127seconds in breeze mode During this period the anti cold wind is disabled the unit runs in forced operation mode the indoor fan will run with rating speed and the anti cold wind function is disabled 9 3 3 1 Auto Fan Operation Heating Mode When the fan is placed in auto mode while the unit is in cooling mode the auto fan operation takes into account the difference AT in indoor room temperature T1 and the set point temperature Ts AT AT Low 223 2 Medium The indoor fan will run at low speed when the AT is greater than 2 5Degrees medium speed when the AT is between 2 5 and 1 5 degrees and high speed between 1 5 and 1 degrees or less 9 4 Defrost Mode 9 4 1 Defrosting Conditions When T4 gt 32 F 0 C if the following two items are satisfied the units start defrosting 1 3 lt 38 3 for 40 minutes and remains lower than 21 F 6 C for more than 3 minutes 2 13 lt 38 F 3 C for 80 minutes and remains lower than 25 F 4 C for more than 3 minutes When T4 lt 32 F 0 C both the first and second conditions are satisfied then the program will determine if T2 has decreased more than 41
18. F 5 C or not When T2 has decreased more than 41 F 5 C the unit enter the defrost mode DVC DVH Inverter Mini Split However no matter what value T4 is if the unit runs with T3 lt 38 F 3 C for more than 120 minutes and T3 remains lower than 29 F 2 C for more than 3 minutes the unit will enter defrosting mode whether or not T2 drops more than 41 F 5 C or not 9 4 2 Ending Defrosting Operation If any one of the following items is satisfied the defrost operation will end and the unit will return to normal heating mode T3 rises to be higher than e 3remains higher than TCDE2 for 80 seconds e The unit has run in defrosting mode for 10 minutes B DVC DVH 09 12 54 F 12 C 47 F 8 C B DVC DVH 18 24 59 F 15 C 9 4 3 Defrosting Process DVC DVH 9K 12K Frequency F2 _FrequencyF8 _ on Compressor 4 way valve off Outdoor fan on Indoor fan off 10s Indoor fan breeze 10s XX 10s no longer than 10m _ 308 Where xx 60seconds 24 Heat Controller DVC DVH 18K 24K Frequency F2 Frequency on Compressor 4 way valve Outdoor fan Indoor fan off 10s Indoor fan breeze 10s XX 10s no longer than 10m 305 Where xx 60seconds for 18K model Where xx 90seconds for 24K model 9 5 Evaporator Coil Temp
19. Protection When T2 gt 140 F 60 C the compressor will turn off but will restart when T2 119 F A8 C When T2 gt 128 F 53 C the compressor frequency will decrease to a lower level and runs at this level for 20seconds to protect the unit When the frequency decreases to Fmax F2 22128 53 for minutes the compressor will turn off However when the coil temperature lowers to T2 lt 119 F 48 C or T2 remains at 119 F 48 C for 6 minutes the frequency will not be limited by the evaporator coil temperature T2 9 6 Auto Mode This mode can be selected using the remote control The set temperature Ts can be changed between 63 86 F 17 30 C In auto mode the machine will choose the mode according to AT where AT T1 Ts AT T1 Ts Auto Mode Function 1 lt ATS1 ATs 1 Heat Controller Indoor fan will run in auto fan mode and the louver will operate based on the mode selected automatically Heat Cool Fan Only Notes e f the unit switches between heating and cooling modes automatically the compressor will stop for 15 minutes and re select the mode according to the AT conditions the setting temperature is modified the machine will choose running function again based on AT 9 7 Dry mode 9 7 1 Dry Model Fan Speed and Louver Function Indoor fan speed is fixed at breeze speed and can t be changed The louver angle will operate the same as it does in cooling mode 9 7
20. 116 241 2 357 3 2114 37 99 77 171 117 243 2 294 2 2007 38 100 78 172 118 244 2 233 4 1905 39 102 79 174 119 246 2 474 0 180 9 40 104 80 176 120 248 2 117 1 1719 41 106 81 178 124 250 2 061 2 163 3 42 108 82 180 122 252 2 007 3 155 2 43 109 83 181 123 253 1 955 4 44 111 84 183 124 255 1 905 5 1404 45 113 85 185 125 257 1 856 6 1335 46 115 86 187 126 259 1 808 7 1271 47 117 87 489 127 261 1 762 8 121 118 88 190 128 262 1 717 9 1152 49 120 89 192 129 264 1 674 10 1098 50 122 90 194 130 266 1 632 40 Heat Controller DVC DVH Inverter Mini Split 10 3 6 Refrigerant Leakage Detection Diagnosis and Solution EC In the first 5 minutes that the compressor starts up if the temperatures do not remain a constant function where T2 lt Tcool 2 for 4 seconds and occurs 3 times the display will show error code EC and unit will turn off 2 is the Indoor Coil Temperature Sensor Tcool is the temp when the compressor first begins to run Possible Causes 2 faulty e Indoor PCB Faulty e Refrigeration Circuit problems such as gas leakage or blockages Trouble shooting Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Yes Y Check if 2 sensor is connected Is there cool air blowing Ves well Correct the connection or out
21. 2 Compressor Operation in Dry Mode AT T1 Ts AT d 4 25 F3 2 0 1 5 1 0 0 5 0 0 F1 In Dry mode the compressor s frequency will decrease from F3 to F1 as the temperature difference AT between indoor room temperature T1 and the Set point temperature Ts decreases from 2 5 to Degrees 9 7 3 Low Room Temperature Protection In dry mode if room temperature is lower than 50 F 10 C the compressor will stop and will not resume operation until room temperature exceeds 54 F 12 C 9 7 4 Additional Protections in this Mode Evaporator anti freezing condenser high temperature protection and Compressor 25 DVC DVH Inverter Mini Split frequency and Outdoor fan are all limited in the same method that they would be in the cooling mode 9 8 Forced Operation Note See Forced Operation information in the Installation instructions When the unit is off pressing the AUTO COOL button on the indoor unit under the main cover panel will force the unit into auto mode Ifthe AUTO COOL button is pressed again within 5 seconds of the first time it was pushed the machine will go into forced cooling mode Pressing the AUTO COOL button again any time after 5 seconds of the first time it was pushed will turn off the unit In forced operation mode all general protections and remote control are available 9 8 1 Operation rules Forced cooling mode The compressor will run at Fmax F2
22. E5 ES If the sampling voltage is lower than 0 06V or higher than 4 94V the LED will display the this error code Possible Causes Wiring Error e Faulty Sensor Trouble shooting Check the connections between temperature sensor and main PCB No gt Correct the connections Are the connections good Check if the resistance value of the sensor is normal Yes See following tables Replace indoor or outdoor main PCB No the sensor and check if the problem happen again Disconnect the temperature sensor from PCB measure the resistance value of each winding by using the multi meter Tester Temperature Sensors T1 Room Temperature Sensor T2 Indoor Coil Temperature Sensor T3 Outdoor Coil Temperature Sensor T4 Outdoor Ambient Temperature Sensor T5 Compressor Discharge Temperature Sensor 38 Heat Controller DVC DVH Inverter Mini Split T1 T2 T3 T4 Temperature Sensor Resistance Value Table Rome 8 33566 156 170547 228 10 14 62 2756 86 7 9707 158 1 64691 230 9 16 587079 31 88 7 62411 160 1 59068 232 8 563694 32 90 729464 72 162 1 53668 234 6 98442 73 163 148481 235 La sz rer co pone omes vo pne 93992 Ls os paese ae s 20209 e6 tr vs La oe 25 om ne are
23. authorized service center Do not disassemble or repair the product there is risk of fire or electric shock B Always ground the product There is risk of fire or electric shock B Install the panel and the cover of control box securely There is risk of fire of electric shock B Always install a dedicated circuit and breaker Improper wiring or installation may cause electric shock B Use correctly rated breaker of fuse There is risk of fire or electric shock B X Donotinstall remove or reinstall the unit by yourself customer There is risk of fire electric shock explosion or injury B caution when unpacking and installing the product Sharp edges could cause injury be especially careful of the case edges and the fins on the condenser and evaporator DVC DVH Inverter Mini Split B Take care to ensure that power cable could not be pulled out or damaged during operation There is risk of fire or electric shock B Donottouch operation the product With wet hands B Do not allow water to run into electrical parts or the unit It may cause fire failure of the product or electric shock B Do not store or use flammable gas or combustible materials near the product There is risk of fire or failure of product B Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur B If abnormal noises or smoke comes from product turn the breaker off
24. damage Inadequate wiring and or improper electrical supply will likely result in failure of the compressor and other electrical components and voids the warranty Heat Controller 6 2 Line Set Connection Sizes Connection Size Size it 3 8in 1 4in DVC09SD 0 950 0 9 52mm 6 35mm DVC12SD 0 DVH12SD 0 1 2in 1 4in DVC18SD 1 DVH18SD 1 12 7mm 6 35mm 5 8in 3 8in DVC24SD 1 DVH24SD 1 15 9mm 9 52mm 6 3 Line Set Lengths and Elevations Max Max Elevation Length DVC DVHOS9SD 0 66ft 26ft 8m 20m 0 1 824 33ft 10m DVC DVH24SD 1 25m Minimum pipe length must nol be less that 10 feet Trap nes every 10 feet m wif wien ouldoor uni mounled above the indoor unit 6 4 Field Charging Condensing units are factory charged for the outdoor and indoor unit with 25ft 7 6m of refrigerant lines Charge must be added for the interconnecting tubing These units should be cntically charged to ensure proper performance Some systems may require additional charging of refrigerant depending on line set lengths R T X L 25 ft R oz Additional refrigerant to be charged Lift The length of the refngerant line T oz The quantity of the charged refrigerant per additional foot Model 16 Heat Controller DVC DVH Inverter Mini Split 7 Operating Conditions Indoor Room Cool Mode Heat Mode Dry Mode Temperature
25. dimensions of your actual unit may be different and are subject to change B DVCO9SD 0 26 8in 7 0in B DVHogsp 0 680mm 178mm B DVC12SD 0 30 31 pa B DVH12SD 0 770mm 188mm B DVC18SD 1 35 6in 7 8in 10 8in B DVH18SD 1 905mm 198mm 275mm B DVC24SD 1 40 6in 8 6in 12 4in B DVH24SD 1 1030mm 218mm 315mm Heat Controller DVC DVH Inverter Mini Split 3 2 Indoor Unit Mounting Bracket Note The drawings below are only for reference Actual dimensions may be different and are subject to change 9 3 6in 92mm 6 in 170 B DVC DVH12 3 7in 95mm 1 8in 2 5 45mm 65mm B DVC DVH18 3 1in 80mm 3 9in 100mm R L wh LLLLLLLLZLLLL B DVC DVH24 6 4in 163mm 11 5in 293mm 1 8in 45mm 2 56in 65mm 9 DVC DVH Inverter Mini Split Heat Controller 3 3 Outdoor Unit Note The drawings below are only for reference Actual dimensions may be different and are subject to change Air inlet gt Air outlet Note The above drawing is only for reference The dimensions of your actual unit may be different and are subject to change A DVC DVH09 21 25in A DVC DVH12 540mm 11 25in A DVC DVH18 285mm A DVC DVH24 10 Heat Controller DVC DVH Inverter Mini Split 4 Refrigerant Cycle Diagram 4 1 Cooling Only Models DVC INDOOR OUTDOOR LIQUID
26. low voltage protection error High temperature protection of compressor top 27 DVC DVH Inverter Mini Split 10 2 Outdoor Unit Errors and Trouble WARNING Risk of Electrical Shock shooting Discharge the power in the capacitors on the board if it contains electrolytic capacitors Electrolytic Capacitors HIGH VOLTAGE CAUTION All images are for reference only they may vary from your particular model Note A DVCO9SD 0 A DVHO9SD 0 A DVC12SD 0 and A DVH12SD 0 L BROWN
27. 205 el IO DOT o RE se foo E 100 c 25 Lr NA B _ Rit B8 HB c34 7 E17 Rr ni z 4 N Lo IC16 3 073 1013 O i R23 R10 lt m 1 R36 llo RED pA R56 R77 CORS EN SSRI L3 paces CNal CN33 1 o Ici2 BLACK Bone RIS Y 04 59 863 4 t HEAT Me HEAT Ju 90 i N O Resa al B E n DB IC9 24C04 5 5 168 sea oS 071 4 WAY N a 4 7 A WAYZL RED 1214 R62 T Re to E 163 aaa C17 cal EE Ten 7 PMV ee del cio OS BI EEG o 2 a HE S oa o E Teer STE 8 S s gt 9095352 Etc TOC more m C368 as 542 R590 5 1 4 amp R34 ice o T i DO in BE 09 Go 7 TEM ange g Barre CN16 ees an D BB PO 18 E25 E Sag cj Ed Bias vs 145 H H Bela J HE 4 ROS lee m i T3 Exhaust 5S i 9265 5 8 9 LIT 2012 07 10 amp LED1 is Blue Slow flash Standby Mode Fast flash Error 28 Heat Controller Heat Controller DVC DVH Inverter
28. 9 Hm RSI R43 R45 5 ES O R55 E15 R40 R67 R58 18 s ex DN DNE g See HB Bgm MN RAG 9 S B EX od ceo ser Elle 050 659 R52 FUSEl 50 R750 OP age 2S 55 gt TERME ag cN4 IN JR1 DIA a c50 oss 5 R76 We WEY Ele CNIS 210222 2 R57 R54 CompTop Exhaust E CN17 TestPort E20 E19 CE KFRY OW BPENIW EI0KIR SINGLEICDWZL2 D 13 WP2 1 LED1 is Blue Slow flash Standby Mode Fast flash Error 29 DVC DVH Inverter Mini Split Heat Controller DVC18SD 1 and DVH18SD 1
29. ED1 is Red and signals PCB Power by a solid light when the unit is operating or in standby mode e LED2 is Yellow which will flash slowly when the unit is in standby mode and remain solid when the unit is in operation If this light flashes fast there is an error LED3 is Red and 4 is Green These LEDs are both controlled by the compressor drive chip See the following chart for more information on how these lights correspond with the indoor unit error codes 30 Heat Controller DVC DVH Inverter Mini Split DVC18SD 1 and DVH18SD 1 LED3 and LED4 Error Codes KEY x Flashing Light X Light is Off O Solid Light is On N LEDA LED3 Indoor Unit i Green Red Display ow 1 3 malfunction IGBT over strong current protection ERERE o o e e p 9 m e 31 DVC DVH Inverter Mini Split Heat Controller 10 3 Diagnosis and Solution 10 3 1 EEPROM Parameter Error Diagnosis and Solution E0 F4 Main PCB chip is not receiving feedback from EEPROM chip Indoor Outdoor Possible Causes e Installation error Faulty PCB Trouble shooting Shut off the power supply and turn it on 5 seconds later Is it No still displaying the error code Yes Y If the EERPROM chip is welded on main PCB replace the entire main PCB Otherwise check whether the No Correct the connection EEPROM chip is pr
30. HEAT CONTROLLER SERVICE MANUAL DVC DVH 09 12 18 24 Inverter Single Zone Ductless Mini Split AITONS EQUIPMENT A lll I company AITONS MARS 35 Brownridge Road Unit 6 Halton Hills ON L7G 0 6 e 1 888 744 2911 info aitons com www aitons com DVC DVH Inverter Mini Split Heat Controller TABLE OF CONTENTS 1 Precaution 3 3 4 2 ldentificaton and FUNCIONS UL l bebes tem 5 2 1 Model Numbers of Indoor Outdoor 5 2 2 Required clearances for Indoor Outdoor units pp 5 6 2 6 7 CBeebies 8 SW OO ee ea een 8 CAE Momo u u u u unun 9 Unit NENNEN 10 4 Retrigerant Cycle Diagram a een ee 11 4 001 AG OH A ee einen 11 4 2 Heat Pump Model DVH x uuu ae 12 5 Wiring NBI NEN u Land 13 rll WIG DIDI RE TELLS 13 14 Z Outdoor 91 c 15 5 Installation uuu e cube is eua 16 een 16 6 2 EINE Set Cohnectofi SIZES a 16 6 9 Eine Set Lengths and 1 EEE He 16 Field Charging une ee ee 16 7
31. Mini Split A DVC24SD 1 A DVH24SD 1
32. N B DVC24SD 1 B DVH24SD 1 If the running current is too high above ISHEAT in the Off zone of the chart above the compressor will stop Between I3HEAT and I2HEAT in the Decrease zone the compressor will lower the frequency to the lowest level The Hold zone allows the compressor to continue to run at the current frequency Note When the unit is in hold zone for 3 minutes the compressor frequency will rise to the next highest level This rise in frequency can occur twice at most while in this zone The Resume zone places no limitation on the frequency d 15 7 15 10 11 12 13 NEN sa NEN NEN NEN Heat Controller 9 3 2 Outdoor Fan Operation Heating Mode The outdoor fan operates based on the Outdoor Ambient Temperature T4 T4 C Low 63 17 99 15 TM ig When the outdoor ambient temperature T4 is above 63 F 17 C the outdoor fan runs low speed however when the temperature is below this the fan speed increases to high and continues to run at high speed when the temperature is 63 F 17 C or below 9 3 3 Indoor Fan Operation Heating Mode The indoor fan runs based on the evaporator coil temperature T2 as follows T2 Setting TEL8 TEL TEL6 Medium TEL5 TEL4 Low TEL3 TEL2 Breeze TEL1 Super TELO S Breeze Off TELO TEL1 TEL2 TEL3 TEL4 TEL5 TEL6 TEL7 TEL8
33. SIDE 4 CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER h p GAS SIDE COMPRESSOR ATTENTION Units can be pumped down for service and recharged e servicer can pump down the refrigerant into the outdoor unit for maintenance or replacement of the indoor unit Also the entire system can be evacuated for maintenance or replacement of the outdoor unit 11 DVC DVH Inverter Mini Split Heat Controller 4 2 Heat Pump Models DVH INDOOR OUTDOOR 4 CHECK VALVE LIQUID SIDE Heating Model only 4 2 WAY VALVE d CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER 4 GAS SIDE 4 i Y 4 3 WAY VALVE REVERSING VALVE Heating Model only ACCUMULA TOR 4 4 COOLING COMPRESSOR 4 HEATING ATTENTION Units can be pumped down for service and recharged e A servicer can pump down the refrigerant into the outdoor unit for maintenance or replacement of the indoor unit Also the entire system can be evacuated for maintenance or replacement of the outdoor unit 12 Heat Controller DVC DVH Inverter Mini Split 5 0 Wiring Diagrams 5 1 Indoor Units 0950 0 B DVHO09SC 0 B DVH12SD 0 B DVH12SD 0 202052090361 SWIMG MOTOR SWIMG MOTOR2 OPTIONAL HEATER OPTIONAL fa LED DISPLAY BOARD WN 29 i INDOOR WIRING DIAGRAM B DVC18SD 1 B DVH18SD 1 202032891196 Notes
34. anel is being closed when the horizontal louver is still moving the unit will stop the horizontal louver from moving and allow the panel to move first After this the horizontal louver will continue its pervious movement 9 13 47 F 8 C Heating Note This is an optional feature and may not be present on your actual model In heating operation the set temperature of the unit can be set as low as 47 F 8 C in order to keep the room temperature above freezing when the house is unoccupied for an extended period of time in severe cold weather 26 Heat Controller DVC DVH Inverter Mini Split 10 Troubleshooting 10 1 Indoor Unit Error Codes KEY 5 Flashing Light X Light is Off O Solid Light is On Indoor unit EEPROM parameter error Communication Error between indoor and outdoor unit Zero crossing signal detection error T1 Indoor room temperature sensor has an open xx 5 times X E4 or short circuit T2 Evaporator coil temperature sensor has an xx 6 times X E5 open or short circuit Refrigerant leakage detection error T4 Outdoor temperature sensor has an open or 2 times short circuit T3 Condenser coil temperature sensor has an 3 times open or short circuit T5 Compressor discharge temperature sensor xx 4 times has an open or short circuit 5 ms o Outdoor unit EEPROM parameter error IPM malfunction or IGBT over strong current xx 1 times X protection error Over voltage or over
35. count the difference AT in indoor room temperature T1 and the Set Point Temperature Ts and the compressor frequency will operate as follows AT 11 Ts X ATA 3 5 3 0 le 2 0 The zones shown on the chart above correspond to the various compressor running frequencies as a result AT of the difference between T1 Ts When the temperature differential AT of T1 Ts remains in the same zone for 3 minutes the compressor will run as follows In zones A thru E the AT is between 3 5 and 1 Degree the compressor will continue to increase the frequency until it reaches its highest level where Fmax F8 In zone F the compressor continues to run at its current frequency when the temperature differential AT is between 0 5 and 1 degree Once the temperature differential AT falls below 0 5 degrees the compressor s frequency will decrease unit it reaches the lowest level where Fmax F1 In zone H where the AT is 1 degree or less the compressor will run at the lowest frequency where Fmax F1 for 1hour However when the temperature differential AT is less than 2 degrees the compressor will stop 20 Heat Controller Additionally the compressor running frequency is always limited by the current Therefore the running currents also must be taken into account I3COOL I2COOL and I1COOL refer to different running current values in the table below
36. er the properly or the outdoor unit No resistance of the fan motor is normal If not replace ventilation is good the fan motor Yes Y Check if the compressor resistance values are uniform Refer to page 63 Yes Y Replace the outdoor main PCB if the main PCB and IPM are separate No Replace the compressor 42 Heat Controller DVC DVH Inverter Mini Split 10 3 7 Index IPM continuity check Turn off the power let the electrolytic capacitors discharge completely and dismount the IPM Use a digital tester to measure the resistance between P and U V W N U V W Digital tester Normal resistance value Digital tester Normal resistance value Red Black Red Black Several Red Note DVCO9SD 0 DVHO9SD 0 DVC12SD 0 DVH12SD 0 models Measure the black pin and red pin of the motor connector the resistance should be around 500 at 20 C 68 F DVC18SD 1 and DVH24SD 1 models Measure the black pin and red pin of the motor connector the resistance should be around 84 50 at 20 C 68 F DVC24SD 1 and DVH24SD 1 models Measure the black pin and red pin of the motor connector the resistance should be around 88 50 at 20 C 68 F DVC DVH Inverter Mini Split Heat Controller 44 Heat Controller DVC DVH Inverter Mini Split 45 DVC DVH Inverter Mini Split Heat Controller 10 3 8 High Temperature Protection of Compressor Diagnosis and Sol
37. es Wiring mistake IPM Malfunction Outdoor Fan Assembly Faulty Compressor Malfunction Outdoor PCB Faulty Trouble shooting Check if the wiring between main PCB and compressor are properly Yes Correct the connection or replace connected and if any wires or the wires and connectors connectors are broken No Y IPM continuity check Check if the IPM Replace the IPM board or replace the terminal resistance values are uniform No main PCB if the IPM board and main Refer to pages 40 41 PCB are integrated together Yes Check whether th ist Check if the outdoor fan runs j e resis a properly and if the outdoor No O UIC tan MAWT S Norma If not replace the fan motor Refer to pages 34 35 unit s ventilation is good Yes Check if the compressor resistance values are uniform No gt Replace the compressor Refer to the following page Yes Y Replace the outdoor main PCB if the main PCB and IPM are separate i N a nn 47 DVC DVH Inverter Mini Split Heat Controller 10 3 9 Index Compressor Resistance Measure the resistance value of each winding by using the tester a Input Terminal 4 Red 2 N Black 3 OX Red Resistance Value DA108X1C 23EZ DA130M1C 31FZ DA150S1C 20FZ 110 1 770 0 950 20 68 20 68 20
38. ew reactor Yes Y Replace the outdoor main PCB Replace the indoor main PCB Power on Is the error still displaying Power on Is the error still displaying Yes Yes Replace the indoor main PCB Replace the outdoor main PCB Note See next page for masuring Vs and the resistance of the reactor 33 DVC DVH Inverter Mini Split a E M LE 34 Heat Controller Remark Use a multimeter to test the DC voltage between the L2 and S terminals of the outdoor unit The red pin of the multimeter should connect to L2 terminal while the black pin is forthe S terminal When the unit running normally the voltage will alternate between 50V to 50V If the outdoor unit has a malfunction the voltage will alternate with positive voltage values If the indoor unit has malfunction the voltage will be a constant value Remark Use a multimeter to test the resistance of the reactor which does not connect with the capacitor The normal value should be around zero ohms Otherwise the reactor has malfunctioned and needs to be replaced Heat Controller DVC DVH Inverter Mini Split 10 3 3 Zero Crossing Detection Error Diagnosis and Solution E2 When PCB does not receive zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Possible Causes e Connection Error e Faulty PCB Trouble sho
39. frequency and indoor fan runs in breeze mode After running for 30 minutes this way the unit will then run in auto mode with 75 F 24 C set temperature Ts Note See Auto Mode section of this manual for more information 9 9 Timer function 9 9 1 Timer Range The timer range is 24 hours and is relevant time which means it is the time that has elapsed from the time the timer is set 9 9 2 Timer On The unit will turn on automatically when the Timer On set time is reached 9 9 3 Timer Off The unit will turn off automatically when the timer off set time is reached 9 9 4 Timer On Off The unit will turn on automatically when the Timer On set time is reached and then the unit will automatically turn off when the timer off set time is reached 9 9 5 Timer Off On The unit will turn off automatically when the timer off set time is reached and then DVC DVH Inverter Mini Split automatically turn on when the Timer On set time is reached 9 9 6 Mode within Timer Funtion The timer function will not change the current operation mode 9 10 Sleep Mode 9 10 1 Sleep Mode Duration Sleep mode operates for 7 hours when it is activated After 7 hours the unit turns off 9 10 2 Sleep Mode Operation When sleep mode is activated while the unit is in cooling mode the set temperature rises 1 every hour for 2 hours After 2 hours the set temperature stops rising and indoor fan is fixed at low speed When sleep mode is activated
40. from indoor air outlet replace T2 sensor Does the problem happen again a Yes Y Y Is there a refrigerant leak Replace indoor PCB Check at the connection joints of the gas and liquid valve N Yes 0 Repair the leak recharge the system with refrigerant Is there any blockage Such as the capillary or the welded joints of the pipes Clear the blockage or replace blocked component such as capillary tubes 41 DVC DVH Inverter Mini Split Heat Controller 10 3 7 IPM Malfunction or IGBT Over Current Protection Diagnosis and Solution PO Malfunction decision When the voltage signal that IPM sends to compressor drive conditions chip is abnormal the display LED will show PO and unit will turn off Possible Causes Wiring error IPM malfunction Outdoor Fan Assembly faulty Compressor Malfunction Outdoor PCB Faulty Trouble shooting Check if the wiring between main PCB and compressor connected by Correct the connection or replace Yes error and if the wires and connectors the wires and connectors are broken No IPM continuity check Check if the Replace the IPM board or replace the IPM terminal resistance values are No main PCB if the IPM board and main uniform Refer to page 64 PCB are integrated together Yes Y Check if the outdoor fan runs please refer to the below remark check wheth
41. ion When the unit starts up the louver will be active immediately but the indoor fan will not start for 10s unit is in heating mode the indoor fan will be also controlled by anti cold wind function to eliminate cold blow Heat Controller 8 3 7 Compressor Crankcase Heater If the outdoor ambient temperature 4 lt 38 3 C and the unit connects to a new power supply or if the compressor has stopped for over 3 hours the crankcase heater will turn on When T4 gt 41 F 5 C or the compressor starts running the crankcase heater will turn off 8 3 8 Zero Crossing Detection Error If the unit detects a time interval is not correct for a continuous 2405 the unit will stop and the LED will display the appropriate error code The correct zero crossing signal time interval should be between 6 13ms 8 4 2 9 Condenser temperature protection 131 F 55 C lt T3 lt 140 F 60 C the compressor frequency will decrease until it 9 0 Operation Modes and Functions 9 1 Fan Only Mode In Fan only mode the outdoor fan and compressor stop running The temperature setting function is disabled and no setting temperature is displayed on the indoor unit The Indoor fan can be set to high med low auto in fan only mode The louver will operate the same as it does in cooling mode When the fan only mode is placed in Auto Mode it operates as shown below n F C 81 5 27 5 High 80 6 27 m 77 9 25 5
42. is solved Yes Note See next page for information pertaining to Index 1 and 2 36 Heat Controller Heat Controller DVC DVH Inverter Mini Split 10 3 4 Index 1 Indoor AC Fan Motor Measure the resistance value of each winding by using the tester d Input Terminal Red 1 Black 2 White 3 A Black ES Resistance Value 5300 8 750x896 3810 8 183 60 8 1120 8 118 50 8 20 C 68 F 20 C 68 F 20 C 68 F 20 C 68 F 20 C 68 F 20 C 68 F Brand Brand Brand Brand Brand Brand Weiling Weiling Weiling Weiling Weiling Dayang 3150x896 150021896 2670x896 2060x896 820x896 78 50 8 20 C 68 F 20 C 68 F 20 C 68 F 20 C 68 F 20 C 68 F 20 C 68 F Brand Brand Brand Brand Brand Brand Weiling Weiling Weiling Weiling Weiling Dayang 10 3 4 Index 2 Indoor AC Fan Motor Power on and set the fan speed to high After running for 15 seconds measure the voltage of pin1 and pin2 If the value of the voltage is less than 100V 208 240V power supply or 50V 115V power supply the PCB is defective and needs to be replaced Input Terminal Id N y L N 2 R e d 1 pee 7 gt Black 2 2 White N N White 3 otYVVV o Black 37 DVC DVH Inverter Mini Split Heat Controller 10 3 5 Open or Short Circuit of Temperature Sensor Diagnosis and Solution
43. mage to the plastic parts of the product B Do not touch the metal parts of the product when removing the air filter They are very sharp B Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage B Do not insert hands or other objects through air inlet or outlet while the product Is operated B Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different brands of batteries There is risk of fire or explosion B If battery acid from the batteries gets onto your skin or clothes wash it well with clean water and contact your local poison control center Do not use the remote of the batteries have leaked Heat Controller DVC DVH Inverter Mini Split 2 Part Identification and Functions 2 1 Model Numbers of Indoor Outdoor units 18KBTU H B DVH18SD 1 B DVC18SD 1 A DVH18SD 1 A DVC18SD 1 24KBTU H B DVH24SD 1 B DVC24SD 1 A DVH24SD 1 A DVC24SD 1 2 2 Required Clearances for Indoor and Outdoor units 12KBTU H B DVH12SD 0 B DVC12SD 0 A DVH12SD 0 A DVC12SD 0 than Ein 15cm More than Sin 12cm More Sin 12cm than amp 5ft 2 Dem Fig 1 than 12In 30cm More than f 121n 30cm L More than 2411 160 10ft 200cm
44. o fan operation takes into account the difference AT in indoor room temperature T1 and the set point temperature Ts AT T1 Ts AT TN High Medium 1 5 Low When there is a 3 to 4 degree difference AT in set and room temperatures the fan runs high speed When the difference in temperature AT is between 1 and 3 degrees the fan speed is medium However as the room temperature begins to get closer to the set temp within 1 degree or less temperature differential AT the fan speed will run on low 21 DVC DVH Inverter Mini Split 9 3 HEATING MODE 9 3 1 Compressor Operation Heating Mode The maximum operating frequency Fmax follows the chart below based on the outdoor ambient temperature T4 F C 93 34 Off Fmax F2 4 Fmax F3 70 21 Fmax F4 66 19 65 18 Fmax F5 63 17 61 1 6 Fmax F6 59 15 _ 57 14 Fmax F7 54 12 52 11 Fmax F8 43 6 41 5 Fmax F9 Fmax F10 DVC DVH Inverter Mini Split However if the unit is turned on using the remote control the compressor will run at the Fmax frequency for 7 minutes according to the outdoor ambient temperature T4 But after 7 minutes the operation will take into account the difference AT in indoor room temperature T1 and the Set Point Temperature Ts and the compressor frequency will o
45. oor temperatures e Gold Hydrophilic Condensers Fin Coating This coating improves the heating efficiency by accelerating the defrosting process The anticorrosive gold coating on the condenser helps withstand salty air and corrosive elements for sea side applications e Self Clean This function wicks away any moisture essentially cleaning the inside of indoor unit to prevents bacteria for forming This feature is especially useful at the end of the season and or when the unit will not be used for an extended period of time e Follow me A temperature sensor is built in the remote control which signals the unit to automatically change the operation mode to supply a comfortable temperature Using this feature allows the unit to sense the conditions where you are in the room rather than up high in the room where it traditionally senses the conditions via the indoor unit Low Room Temperature Protection Allows the unit to maintain a set temperature to protect the area it is installed in from freezing when you will be away for an extended period of time in the winter Louver Swing and Position Memory The louvers can swing to make a breeze like affect in the air flow from the indoor unit When starting the unit after shutting down the louver will restore the user s settings for louver position e Refrigerant Leak Detection The refrigerant leakage detect function prevents the unit from freezing due to low charge and protects the compre
46. op erly plugged in main PCB well Yes Replace the main EEPROM Has a read only memory whose contents can be erased and reprogrammed using a pulsed voltage For the location of EEPROM chip please refer to the representative photos below Indoor PCB Outdoor PCB 32 Heat Controller DVC DVH Inverter Mini Split 10 3 2 Indoor Outdoor Unit Communication Error Diagnosis and Solution E1 eee Indoor unit does not receive the feedback from outdoor unit during 110 seconds and this condition happens four times continuously Possible Causes e Wiring error e Faulty Indoor Outdoor PCB Trouble shooting Power off then turn on the unit 5 seconds later reconnect the power wire ls the error No No further action still displaying after several minutes Yes Y Measure Vs is it moving alternately with positive value Vs is the voltage between L2 and S of outdoor unit Connect the red pin of multimeter with L2 port black pin with S port N Yes Check all the wiring with outdoor units Is the wiring to the outdoor main PCB connected correctly Is the reactor connected well Yes Y Y Measure the resistance of the reactor Check all the wiring with indoor units the one without capacitor If is is zero Is the wiring to the indoor main PCB follow the step below If not replace connected correctly with a n
47. or disconnect the power supply cable There is risk of electric shock or fire B Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the is equipped with one There is risk of physical injury electric shock or product failure B Turn the main power off when cleaning or maintaining the product There is risk of electric shock B When the product will not be used for a long period of time turn off the circuit breaker There is risk of product damage or failure or unintended operation CAUTION B Always check for refrigerant leakage after installation or repair of product Low refrigerant levels may cause operational failure B install the drain hose to ensure that water is drained away properly Improper installation may cause water leakage and damage to personal property DVC DVH Inverter Mini Split Heat Controller B Keep the unit level even when installing the product This helps to avoid vibration or water leakage B Do not install the product where it will be directly exposed to seaside wind salty air It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Operational B Do not block the inlet or outlet of air flow B Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or da
48. oting Check if the connections and power supply is normal No Yes Indoor main PCB is defective Replace indoor main PCB Correct the connections Turn on the unit when the power supply is good 35 DVC DVH Inverter Mini Split 10 3 4 Fan Speed is Out of Control Diagnosis and Solution E3 me E Malfunction decision When indoor fan speed runs at 300RPM or lower for certain conditions period of time the unit will stop and the LED will display the failure Possible Causes Trouble shooting Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code ve Shut off the power supply rotate the fan by hand Does it rotate properly Hi Check a wires of fan motor Are all the connections good d Check the fan motor is normal through index 1 Yes Wiring error Faulty Fan Assembly Faulty Fan Motor Faulty PCB Check whether the main PCB is normal through index 2 No gt The unit operates normally Find out the cause and try to fix it For example NO check whether the fan is blocked or the bearing is broken No Correct the connections If the malfunc No Replace the fan tion is still motor exists replace the main No Replace the main PCB No gt The malfunction
49. perate as follows AT T1 TS AT H 5 0 43 5 5 3 0 2 5 2 0 D ul ul The zones A B C H shown on the chart above correspond to the various compressor running frequencies as a result AT of the difference between T1 Ts When the temperature differential AT of T1 Ts remains in the same zone for 3 minutes the compressor will run as follows When the AT is between 0 5 and 2 5 Degrees in zones A thru E the compressor frequency will increase until it reaches the highest level Fmax F10 In zone F where the AT is 3 Degrees the compressor will continue to run at the current frequency Once the AT is between 3 5 and 5 degrees in zone G the compressor will decrease the frequency to its lowest level where Fmax F 1 When AT is above 5 Degrees in the H zone the compressor will continue to run at Fmax F1 for 1hour When AT is greater and 6 degrees the compressor will stop 22 Heat Controller Additionally the compressor running frequency is always limited by the current Therefore the running currents also must be taken into account I2HEAT and I1 HEAT refer to various running current values see chart EN ISHEAT Decrease I2HEAT Hold I3HEAT Amps _ Resume Amps I2HEAT Amps 0 0950 0 0 950 0 B DVC12SD 0 B DVH12SD 0 LE
50. re is a 1 minute delay the 1 time the unit is started up then a 3 minute delay each time the unit is started up after the 1 time 8 3 2 Compressor Top Temperature Protection The unit will stop working when the top of the compressor temperature is reached and will restart after the compressor top temperature protector restarts 8 3 3 Compressor Discharge Temperature Protection When the compressor discharge temperature is getting high the frequency of the compressor will be limited as stated below When the compressor discharge temperature T5 gt 239 F 115 C for 5s the compressor will stop However when the temperature is between 226 4 F 108 C lt T5 lt 239 F 115 C the compressor frequency will decrease to the lowest level every 3 minutes Then when the temperature is 194 F 90 C lt T5 lt 221 F 105 C the compressor will keep running at the current frequency When T5 lt 194 F 90 C there will be no limit on the compressor frequency 8 3 4 Out of Control Fan Speed When Indoor Fan Speed runs at 300RPM or lower for a designated period of time the unit will stop running and the appropriate error code will show on the display 8 3 5 Inverter Module Protection The Inverter module has protection features regarding current voltage and temperature If these any of these are abnormal the corresponding error code will display on indoor unit and the unit will stop working 8 3 6 Indoor fan delayed open funct
51. requirements as to product performance and certification All products meet applicable regulations in effect on date of manufacture however certifications are not necessarily granted for the life of a product Therefore it is the responsibility of the applicant to determine whether a specific model qualifies for these incentive rebate programs AITONS EQUIPMENT A AITONS MARS 35 Brownridge Road Unit 6 Halton Hills L7G 0 6 e 1 888 744 2911 info aitons com www aitons com 4 2014 52
52. ssor from being damaged Self Diagnosis Function The system monitors itself for abnormal operations and turns of the unit automatically to protect it from further damage then displays an error code to help troubleshoot the problem for a quick solution Sump Heater APTC heater is installed in the base pan of the outdoor unit to prevent the rain snow or defrosted water from accumulating and icing up the unit Compressor Crankcase Heater The oil dissolves easily into the refrigerant especially in low temperature condition therefore the crankcase heating belt is used to warm the bottom of the compressor to avoid pumping out too much oil within the refrigerant which helps to protect the compressor DVC DVH Inverter Mini Split Heat Controller 3 Dimensional Data 3 1 Indoor Unit Note The drawings below are only for reference Actual dimensions may be different and are subject to change n E N H 2 D odi W D Note The above drawing is only for reference The
53. ution P2 Malfunction If the sampling voltage is not 5V the LED will display the error Possible Causes Power Supply Problems Refrigerant Circuit leakage or blockage PCB Faulty Trouble shooting Check if the air flow of the Remove any obsticles blocking the indoor and outdoor units are Yes a air inlets or outlets obstructed No Y Turn off the power supply and turn it on 10 minutes later Check if all the connections No especially if the OLP Over Load Correct the connection Protector senor is connected Yes Yes Y Y Measure the resistance Check if the system is between the two terminals No Replace the OLP properly charged of the OLP It is zero NO Yes Yes Replace the outdoor control PCB Refrigerant circuit is blocked Recharge to the correct Check the capillary tubes refrigerant volume or welded joints of pipes Fix blockage or replace blocked component Heat Controller DVC DVH Inverter Mini Split 10 3 9 Inverter Compressor Drive Error Diagnosis and Solution P4 Malfunction decision An abnormal inverter compressor drive is detected by a special conditions detection circuit including communication signal detection voltage detection and compressor rotation speed signal detection etc Possible Caus
54. while the unit is in heating mode the set temperature decreases 1 every hour for 2 hours After 2 hours the set temperature stops rising and indoor fan is fixed at low speed Anti cold wind function will still have the priority 9 10 3 Timer Function in Sleep Mode The Timer function is still available during sleep mode When the timer off is set for less than 7 hours while in sleep mode the sleep mode will stop once the set time off is reached However if the timer off is set for more than 7 hours the unit will not stop operating until reaches the set time in sleep mode 9 11 Auto Restart Function In case of a sudden power failure the unit will memorize the set conditions before the power failure When the power returns the unit will resume its previous operation settings except for the swing function automatically after 3 minutes 9 12 Automatic panel function The panel will automatically move to the closing direction at an angle of 50 when the unit is receiving power and this action is not affected by any signal from remote control 9 12 1 Panel Operation when Powering On Heat Controller When the unit is turned on the panel is opened automatically at an angle of 50 and then the horizontal louver will open 9 12 2 Panel Operation when Powering Off When the unit is turned off the panel is closed automatically at an angle of 50 and then the horizontal louver will close 9 12 3 Panel Interference If the p
Download Pdf Manuals
Related Search