Service Manual DUO 50 DCI(brand Airwell)
Contents
1. LEGEND TC Total Cooling Capacity KW SC Sensible Capacity KW Power Input KW WB WetBulb Temp C DB Dry Bulb Temp C ID Indoor OD Outdoor 5 1 2 Capacity Correction Factors 1 2 1 1 5 1 d 0 9 9 0 8 5 0 7 0 6 0 5 20 25 30 35 40 45 Outdoor Temperature deg SM DUODCI 1 A 1 GB CONTENT 5 1 PERFORMANCE DATA Airwell 5 1 3 Heating Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB TEMPERATURE C OD COIL ENTERING AIR DB WB TEMPERATURE C 15 16 10 12 71 8 1 2 2 1 716 10 9 15 12 15 24 85 105 of nominal Protection Range 80 120 of nominal LEGEND TC Total Heating Capacity KW PI Power Input KW WB Wet Bulb Temp DB Dry Bulb Temp C ID Indoor OU Outdoor 5 1 4 Capacity Correction Factors 1 2 1 1 1 0 9 0 8 0 7 a 0 6 Capacity Ration 0 5 15 10 5 0 5 10 15 Outdoor WB Temperature deg C 5 2 CONTENT SM DUODCI 1 A 1 GB PERFORMANCE DATA 5 2 FLO 12 DCI 5 2 1 Cooling Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB WB TEMPERATURE C2. OD COIL ENTERING AIR DB TEMPERATURE C 10 20 protection range 80 105 of nominal 25 50 of nominal 3 09 3 28 3 47 25 2 10 2 14 2 19 0 82 0 83 0 85 2 95 3 14 3 33 2 05 2 09 2 13 0 91 0 93 0 94 2 81 3 00 3 19 35 2 00 2 04 2 08 1 00 1 02 1 04 40 2 67 2 86 3 05 Protection Range 208 1 10 1 11 1 13 46 2 50 2 69 2 88 Protection Range 188 1 99 1 87 1 21 1 23 1 24 LEGEND TC Total Cooling Capacity KW SC Sensible Capacity KW Power Input KW WB WetBulb Temp C DB Dry Bulb Temp C ID Indoor OD Outdoor 5 2 2 Capacity Correction Factors Cooling Capacity Ratio Vs Outdoor Temperature 12 1 1 09 gt 8 08 8 07 0 6 0 5 20 25 30 35 40 45 Outdoor Temperature deg C SM DUODCI 1 A 1 GB CONTENT 5 3 PERFORMANCE DATA 5 2 3 Heating Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB TEMPERATURE C OD COIL ENTERING AIR DB WB TEMPERATURE 15 16 10 12 71 8 1 2 0 91 2 1 2 63 0 94 3 45 716 10 9 3 65 1 04 15 12 3 85 1 10 15 24 85 105 of nominal Protection Range 80 120 of nominal LEGEND TC Total Heating Capacity KW PI Power Input KW WB WetBulb Temp C DB Dry Bulb Temp C
3. PRODUCT DATA RATING CONDITIONS 5 5 2 OUTLINE DIMENSIONS eene PERFORMANCE DATA eene PRESSURE CURVES ELECTRICAL DATA WIRING 85 2 2 2 22 44 4 REFRIGERATION 8 TUBING CONNECTIONS erneer eeens CONTROL SYSTEM 2 22 TROUBLESHOOTING sanne EXPLODED VIEWS AND SPARE PARTS LISTS APPENDIX A SM DUODCI 1 A 1 GB TABLE OF CONTENTS Airwell INTRODUCTION 1 1 1 1 2 1 3 1 4 INTRODUCTION General The new DUOS50 DCI is a high efficiency inverter technology outddor unit since it s a lego concept unit it can be matched to several types of inverter indoors such as wall mounted cassette floor ceiling units with a capacity range of 2 5 3 5 Kw for each single indoor unit Main Features e Inverter R410A e High COP A class energy rating e Lego Concept e Pre Charged e Dry contact inputs STBY when shorted will force all indoors to STBY o Night when shorted will force outdoor fan to low speed cool mode only e Dry contact output Alarm Will be closed system is faulty e Base heater connection
4. 3 49 0 96 15 24 85 105 of nominal Protection Range 80 120 of nominal 15 12 LEGEND TC Total Heating Capacity KW Power Input KW WB Wet Bulb Temp C DB Dry Bulb Temp C ID Indoor OU Outdoor 5 3 4 Capacity Correction Factors Cooling Capacity Ratio Vs Outdoor Temperature 1 2 1 1 0 9 0 8 0 7 0 6 0 5 Capacity Ration 20 25 30 35 40 45 Outdoor Temperature deg C 5 6 CONTENT SM DUODCI 1 A 1 GB Airwell PERFORMANCE DATA 5 4 12 DCI 5 4 1 Cooling Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB WB TEMPERATURE C OD COIL ENTERING AIR DB TEMPERATURE C 80 110 of nominal 80 105 of nominal 25 50 of nominal 10 20 protection range 25 LEGEND TC Total Cooling Capacity KW SC Sensible Capacity KW Power Input KW WB WetBulb Temp C DB Dry Bulb Temp C ID Indoor OD Outdoor 5 4 2 Capacity Correction Factors Cooling Capacity Ratio Vs Outdoor Temperature 1 2 1 1 0 9 0 8 0 7 0 6 0 5 T T T T T 20 25 30 35 40 45 Outdoor Temperature deg C SM DUODCI 1 A 1 GB CONTENT 5 7 Capacity Ration PERFORMANCE DATA Airwell 5 4 3 Heatin
5. Discharge Pressure kPa 0 Outdoor WB Temperature C 6 2 CONTENT SM DUODCI 1 A 1 GB Airwell ELECTRICAL DATA 7 ELECTRICAL DATA Note e Inrush current is the current when power is up charging the DC capacitors at outdoor unit controller e Starting current is the current when starting the compressor NOTE Power wiring cord should comply with local lows and electrical regulations requirements SM DUODCI 1 A 1 GB CONTENT 7 1 WIRING DIAGRAMS WIRING DIAGRAMS 8 DUO 50 DCI Wiring Diagram 8 1 S 915123 OIA ASA S T jeeus jejeu OL N umolg Ajddns samog 08 enig L e o e 5
6. a NLOADIFSC NLOAD limits as a function of power shedding nen Power Shedding OFF Power Shedding ON SM DUODCI 1 A 1 GB CONTENT 11 1 CONTROL SYSTEM Airwell 11 3 2 Target Frequency Setting The compressor target frequency is a function of the NLOAD number sent from the indoor controller and the outdoor air temperature Basic Target Frequency Setting NLOAD 10 lt lt 127 Interpolated value between minimum and maximum frequenc Minimum frequenc pre gt Compressor is stopped Target frequency limits as a function of outdoor air temperature OAT OAT Range Cool mode limits Heat mode limits lt 6 6 No limit OE lt OAT lt 15 MaxFreqAsOATC MaxFregAsOAT1H SOM MexFregASOAT2H 24 OAT MaxFreqAsOAT 2H 11 3 3 Frequency Changes Control Frequency change rate is 1 Hz sec 11 3 4 Compressor Starting Control Frequency A Slp Z Step 2 1 Sep T anea Minute 1 Minute Time Min 10 Minutes 11 3 5 Minimum On and Off Time 3 minutes 11 2 CONTENT SM DUODCI 1 A 1 GB Airwell CONTROL SYSTEM 11 4 Indoor Fan Control 10 Indoor fan speeds are determined for each model 5 speeds for cool dry fan modes and 5 speeds for heat mode When user sets the indoor fan speed to a fixed speed Low Medium High unit will operate constantly at set speed When Auto Fan is selected indoo
7. 9 1 REFRIGERATION DIAGRAMS 9 1 2 DUO 50 DCI gt Heating Mode ID 6 2 78 Brass Jointer 3 8 Brass Jointer 3 8 o 4 n ex Liquid Valve 1 4 Gas Valve 3 8 CONTENT Strainer Liquid Valve Brass Jointer 1 4 1 4 c Strainer EEV2 Strainer SM DUODCI 1 A 1 GB Airwell TUBING CONNECTIONS 10 TUBING CONNECTIONS Outdoor 0 Unit Suction line Span Tube bending Liquid line ls A Flare nut D Pipe insulation D E Insulating sleeve gt Indoor Unit ih 7 Bw FT E Ec E a fe e fe jer FlareNuts 11 13 40 45 60 65 70 75 80 85 13 20 13 20 18 25 18 25 40 50 Service Port Cap 11 13 11 13 11 13 11 13 11 13 Valve Protection Cap end Refrigerant Valve Port use Allen wrench to open close 1 2 3 Valve Protection Cap 4 Refrigerant Valve 5 Service Port Cap 6 Flare Nut 7 Unit BacK Side 8 Copper Tube When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along the suction line at the lowest point of the riser Incase the indoor unit is installed above the outdoor no trap is required Outdoor Ll 4 H E Indoor EA 10 1 SM DUODCI 1 A 1 GB CONTENT Airwell CONTROL SYST
8. Cooling Heating Condensate Drain Tube 1 0 mm 571 9 5 INDOOR K Dimensions W H D m 571 N Weight PacKage Dimensions W H D m StacKing Height Heating Elements 68 3 KW 16 87 Moisture Removal NOTE 1 Rating conditions in accordance with ISO 5151 and ISO 13253 for ducted units and EN14511 2 Airflow in ducted units at nominal external static pressure 3 Sound power in ducted units is measured at air discharge 4 Sound pressure level measured at 1 meter distance from unit SM DUODCI 1 A 1 GB CONTENT 2 3 PRODUCT DATA SHEET 2 2 5 SX 9 DCI Specifications Model Indoor Unit Type SX 9 DCI Installation Method Fan Motor Output Ww Power Supply V Ph Hz FLARE 220 240 1 50 3 Fan Type amp Quantity Centifugal 2 1 0 2 7 m hr i 2 ee H M L Cooling Heating Sound Power Level L H Cooling Heating dB A Sound Pressure Level dB A Cooling Heating Condensate Drain Tube 1 0 mm WHD mm Weight Kg PacKage Dimensions W H D mm StacKing Height Units Heating Elements KW Moisture Removal L hr INDOOR 2 2 6 SX 12 DCI Specifications 47 50 35 39 6 0 82 0 190 89 10 280 Model Indoor Unit Type SX 12 DCI Installation Method Fan Motor Output Power Supply V Ph Hz FLARE 220 240 1 50 Fan Type amp Quantity Centifugal 2 Airflow Cooling Heating m hr Sound Power L
9. height difference between indoor amp Max 10m outdoor tubing length Standard 7 5m Max 25m for one unit and 30m for total additional charge 1 Rating conditions in accordance with ISO 5151 and ISO 13253 for ducted units and EN14511 2 Airflow in ducted units at nominal external static pressure 3 Sound power in ducted units is measured at air discharge 4 Sound pressure level measured at 1 meter distance from unit z 2 a o o a 2 o a 2 SM DUODCI 1 A 1 GB CONTENT 2 1 PRODUCT DATA SHEET 2 2 2 2 1 Indoor Units Data FLO 9 DCI Specifications Model Indoor Unit Type FLO 9 DCI Wall Mounted Installation Method Fan Motor Output H M L Power Supply Fan Type amp Quantity Airflow Cooling Heating m hr dB A Sound Power Level Exi Cooling Heating H Cooling Heating mm m Kg m Heating Elements KW Moisture Removal L hr 2 2 2 FLO 12 DCI Specifications V Ph Hz 530 570 430 460 330 350 39 50 39 51 26 38 26 39 202 16 810 885 285 Model Indoor Unit Type FLO 12 DCI Wall Mounted Installation Method Fan Motor Output Power Supply V Ph Hz FLARE 220 240 1 50 Fan Type amp Quantity Crossflow 1 Airflow Cooling Heating Cooling Heating Cooling Heating m mm Kg PacKage Dimensions W H D mm StacKing Height Units Heating Elements KW Moisture Removal L hr m3 hr dB A
10. ID Indoor OU Outdoor 5 3 4 Capacity Correction Factors Heating Capacity Ratio Vs Outdoor Temperature 1 2 1 1 c Q 4 09 2 5 0 7 0 6 0 5 15 10 5 0 5 10 Outdoor WB Temperature deg a CONTENT SM DUODCI 1 A 1 GB Airwell PERFORMANCE DATA 5 3 K 9 DCI 5 3 1 Cooling Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB WB TEMPERATURE C OD COIL ENTERING AIR DB TEMPERATURE C 80 110 of nominal 80 105 of nominal 25 50 of nominal 2 63 2 79 2 95 25 1 79 1 82 1 86 0 59 0 61 0 62 2 51 2 67 2 83 1 74 1 78 1 81 0 66 0 67 0 68 2 39 2 71 1 70 1 77 0 73 0 75 10 20 protection range LEGEND TC Total Cooling Capacity KW SC Sensible Capacity KW Power Input KW WB WetBulb Temp C DB Dry Bulb Temp C ID Indoor OD Outdoor 5 3 2 Capacity Correction Factors Cooling Capacity Ratio Vs Outdoor Temperature Capacity Ration o 20 25 30 35 40 45 Outdoor Temperature deg C SM DUODCI 1 A 1 GB CONTENT 5 5 PERFORMANCE DATA Airwell 5 3 3 Heating Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB TEMPERATURE C OD COIL ENTERING AIR DB WB TEMPERATURE C
11. SM DUODCI 1 A 1 GB CONTENT 3 1 Airwell OUTLINE DIMENSIONS 4 OUTLINE DIMENSIONS 4 1 Indoor Unit FLO 9 12 DCI MOUNTING TEMPLATE T TO BE USED FOR LOCATION OF INDOOR UNIT ON THE WALL 2850 TUBING WALL OPENING JFOR REAR ROUTING TUBING WALL OPENING FOR REAR LEFT ROUTING AIR INTAKE AIR INTAKE 4 2 Indoor Unit K 9 12 DCI 2 2 CASSETTE DIMENSIONS Suspended ceiling T bar suspended ceiling Evaporator Fan Intake grille Electrical connection Condensate evacuation 15 Connection GAS Connection LIQUID Air inlet Opening for ducted air distribution into the adjacent room ready to punch out nt WN 9 SM DUODCI 1 A 1 GB CONTENT 4 1 OUTLINE DIMENSIONS Airwell 4 3 Indoor Unit SX 9 12 DCI 4 4 4 2 CONTENT SM DUODCI 1 A 1 GB OUTLINE DIMENSIONS Airwell Outdoor Unit DUO 50 DCI 4 3 Air outlet J 4 3 CONTENT SM DUODCI 1 A 1 GB Airwell PERFORMANCE DATA 5 PERFORMANCE DATA 5 1 FLO 9 DCI 5 1 1 Cooling Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB WB TEMPERATURE C OD COIL ENTERING AIR DB TEMPERATURE C 80 110 of nominal 80 105 of nominal 25 50 of nominal 10 20 protection range 25
12. e Cooling operation at outdoor temperature down to 10 C e Heating operation at outdoor temperature down to 15 C 10 LED s shows both indoor and outdoor diagnostics e Variable Speed DC Inverter outdoor fan e 21 diagnostics softwear cable Port for PC e Low noise level Tubing Connections Flare type interconnecting tubing to be produced on site For further detaiBS please refer to APPENDIX A on this manual and to the relevant indoor service Manual Inbox Documentation Each indoor unit is supplied with its own installation and operation manuaBS SM DUODCI 1 A 1 GB CONTENT 1 1 INTRODUCTION Airwell 1 5 Matching Table 1 5 1 R410A OUTDOOR UNITS REFRIGER DUO50 DCI 1 2 CONTENT SM DUODCI 1 A 1 GB Airwell PRODUCT DATA SHEET 2 PRODUCT DATA SHEET 2 1 Outdoor Unit DUO 50 DCI Specifications Function Cooling Heating 5530 620 6670 Ew 20 680 6200050750 1670375 2050 Cooling Heating Sd Remgeancow __ Electronic expansion vave Compressore Pane seee IE Na EE 2222 Protection device Hydrophilic flat fin Grooved tube coil Heat exchanger Propeller x 1 w 53 dB A zie 3 Unit stacKing 3 Kg on suton height difference between indoor units Connection method between the indoor and outdoor units
13. KW SC Sensible Capacity KW Power Input KW WB WetBulb Temp C DB DryBulb Temp C ID Indoor OD Outdoor 5 6 2 Capacity Correction Factors Cooling Capacity Ratio Vs Outdoor Temperature 1 2 1 1 0 9 0 8 0 7 0 6 0 5 20 25 30 35 40 45 Outdoor Temperature deg C SM DUODCI 1 A 1 GB CONTENT 5 11 Capacity Ration PERFORMANCE DATA 5 6 3 Heating Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed OD COIL ENTERING AIR DB WB TEMPERATURE C ID COIL ENTERING AIR DB TEMPERATURE C 716 10 9 15 12 1 18 15 24 Protection Range LEGEND 85 105 of nominal Total Heating Capacity KW 80 120 of nominal PI Power Input KW WB Wet Bulb Temp C DB Dry Bulb Temp C ID Indoor OU Outdoor 5 6 4 Capacity Correction Factors Heating Capacity Ratio Vs Outdoor Temperature 1 2 1 4 5 4 E 0 9 2 8 07 0 6 4 0 5 T T T T 15 10 5 0 5 10 15 5 12 Outdoor WB Temperature deg C CONTENT SM DUODCI 1 A 1 GB Airwell PERFORMANCE DATA 5 7 BS 12 DCI 5 7 1 Cooling Capacity KW Run Mode Unit or 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB WB TEMPERATURE C OD CO
14. Outdoor Units SW Parameters DCI25 DCI35 DCI50 DCI50 DUO Compressor Parameters moree 83 3 9 an s 9 _ Ses 9 9 Sem 7 7 7 9 sere 9 0 9 Frequency limits as a function of outdoor air temperature MaxFreqAsOATC MaxFreqAsOAT1H MaxFreqAsOAT2H OFLOWC OFMEDC OFMAXC OFLOWH OFMEDH OFMAXH Outdoor Fan Limit Control CONTENT SM DUODCI 1 A 1 GB Airwell TROUBLESHOOTING 12 TROUBLESHOOTING WARNING When Power Up the whole outdoor unit controller including the wiring is under HIGH VOLTAGE Never open the Outdoor unit before turning off the Power When turned off the system is still charged 400V It takes about 3 Min to discharge the system Touching the controller before discharging may cause an electrical shock For safe handling of the controller please refer to section 1 6 below 1 4 Dual Split System Failures and Corrective Actions DNE WS NE SUN Power supply indicator at No power supply Check power supply from the outdoor If indoor unit Red LED does power supply is OK check display and not light up display wiring If OK replace controller Indoor fan does not start Unit in heat mode Change to cool mode and check louvers are opened and and coil is still not Green LED does light up warm The outdoor unit is in Change operation mode and check if fan the opposite mode starts Problem with PCB or
15. Vs Outdoor Temperature 1 2 1 1 0 9 0 8 0 7 0 6 0 5 20 25 30 35 40 45 Outdoor Temperature deg C SM DUODCI 1 A 1 GB CONTENT 5 9 Capacity Ration PERFORMANCE DATA Airwell 5 5 3 Heating Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB TEMPERATURE C OD COIL ENTERING AIR DB WB TEMPERATURE C 10 9 0 95 3 28 15 12 1 00 15 24 85 105 of nominal Protection Range 80 120 of nominal LEGEND TC Total Heating Capacity KW PI Power Input KW WB WetBulb Temp C DB DryBulb Temp C ID Indoor OU Outdoor 5 5 4 Capacity Correction Factors Heating Capacity Ratio Vs Outdoor Temperature 1 2 1 1 0 9 0 8 07 0 6 4 0 5 T T T T T 15 10 5 0 5 10 15 Outdoor WB Temperature deg C 5 10 CONTENT SM DUODCI 1 A 1 GB Capacity Ration Airwell PERFORMANCE DATA 5 6 SX 12 DCI 5 6 1 Cooling Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB WB TEMPERATURE C OD COIL ENTERING AIR DB TEMPERATURE C 80 110 of nominal 80 105 of nominal 25 50 of nominal 3 15 3 34 3 54 10 20 protection range 25 LEGEND TC Total Cooling Capacity
16. and open circuit component soldering bulgy and distortion of electrolytic capacitor Power circuit check check voltage of every power level 5V 12V 15V printed on back of PCB Checking the Outdoor Fan Motor Enter Test Mode where the OFAN speed is high Check the voltage between lead wires according to the normal value as following Between wire and black wire 310VDC 20 e Between orange wire and black wire 15VDC 1V e Between yellow wire and black wire 2 6VDC Checking the Compressor The compressor is brushless permanence magnetic DC motor Three coil resistances are THE same Check the resistance between three poles Checking the Reverse Valve RV Running in heating mode check the voltage between two pins of reverse valve connector normal voltage 1 220VAC Checking the electrical expansion valve EEV The EEV has two parts drive part and valve The drive part is a step motor it is ringed on the valve Check the drive voltage 12VDC When Outdoor unit is power on EEV shall run and have click and vibration 1 6 Precaution Advise and Notice Items 1 6 1 1 6 2 1 6 3 12 6 High voltage in Outdoor unit controller Whole controller including the wires connected to the Outdoor unit controller may have the potential hazard voltage when power is on Touching the Outdoor unit controller may cause an electrical shock Advise Don t touch the naked lead wire and don t insert finger
17. conductor or anything else into the controller when power is on Charged Capacitors Three large capacity electrolytic capacitors are used in the Outdoor unit controller Therefore charging voltage 380VDC remains after power down Discharging takes about three minutes after turned off Touching the Outdoor unit controller before discharging may cause an electrical shock When open the Outdoor unit controller cover don t touch the soldering pin by hand or by any conductive material Advise 1 Open the Outdoor unit controller cover only after five minutes from power down 2 Measure the electrolytic capacitors voltage before farther checking controller for safety Additional advises When disassemble the controller or the front panel turn off the power supply When connecting or disconnecting the connectors on the PCB hold the whole housing don t pull the wire There are sharp fringes and sting on shell Use gloves when disassemble the A C units CONTENT SM DUODCI 1 A 1 GB Airwell EXPLODED VIEWS AND SPARE PARTS LISTS 13 EXPLODED VIEWS AND SPARE PARTS LISTS 13 1 Outdoor Unit DUO 50 DCI SM DUODCI 1 A 1 GB CONTENT 13 1 EXPLODED VIEWS AND SPARE PARTS LISTS 14 2 Outdoor Unit DUO 50 DCI No Part No Description Unit 1 433218 Front panel A 1 2 4526340 Air inlet ring 420 433223 Painting insulation plate 4526476 Axial fan OD 401 4526475 DC motor ARW 44 8p 40W 4526457 Motor support 4526482 Base painti
18. i EEE BEREA ERENER EN B EN Ee Deicng Poen indoor Coi HP 0_ Reemed OT OT EEPROMNoUpaed 90 Eee Bad Communication 3 3 9 1 Using EEPROMdata 9 No Faut Feat Mode No Fault Stand By 6 8 cr CONTENT SM DUODCI 1 A 1 GB Airwell 1 3 4 Indoor unit diagnosis by MSMP and corrective actions Fault Probable Cause Sensors failures of all types TROUBLESHOOTING Corrective Action Check sensors connections or replace sensors IPM Fault Electronics HW problem Bad EEPROM DC under over Voltage Electronics HW problem AC under Voltage Check all wiring and jumper settings if OK replace electronics No action unless special parameters are required for unit operation Check outdoor unit power supply voltage Check outdoor unit power supply voltage 2 6 Indoor and Outdoor controllers are with different versions Communication or grounding wiring is not good a Compressor Lock S Bad Communication Communication quality is low reliability 1 4 Judgment by MegaTool Indoor Outdoor unit Communication mismatch 1 3 7 No Communication MegaTool is a special tool to monito
19. 5 3snd a WOO 1 ekhi O AU Old oer 24 EN OO JUBIN jeeus jejeu oL 1 2 N 5 Aqpis o aio 1 N w 9 89d ww LJ Ja ello god 4 INA TNS 1 zi9u w Hl vst O E ue IN LY gt Io OO 19 gt 3 N WOO AN 241 N HOW 21210114 osr LINN T c 100 Jodwnr Oen HLHVa woow woo 3 e s v efef SIX Old Jedwnr jepon UMOIg enig por 1 JOOPINO Sd 8d Zd A33 Ld ld 1 9 s v e z t 11 MAN 9199993 e 1 N w 9 1 NI 1 Q e 11 E gd L LINN E pods 1109 1SH LONS 1 119 190 INVHOVIG LINDYID HOOOLNO 8 1 SM DUODCI 1 A 1 GB Airwell 9 REFRIGERATION DIAGRAMS 9 1 Heat Pump ModeBS 9 1 1 DUO 50 DCI gt Cooling Mode Brass Jointer REFRIGERATION DIAGRAMS Brass Jointer o gt 3 8 Liquid Valve 1 4 Gas Valve Gas Valve 3 8 COOLING AND DRY MODE SM DUODCI 1 A 1 GB CONTENT Strainer Liquid Valve 1 4 Strainer EEV2 J Strainer p Y
20. 5 4 0 9 2 8 07 0 6 4 0 5 T T T T 15 10 5 0 5 10 15 5 14 Outdoor WB Temperature deg C CONTENT SM DUODCI 1 A 1 GB Airwell PERFORMANCE DATA 5 8 Capacity Correction Factor Due to Tubing Length OneWay 5 8 1 FLO25 FLO35 K25 K35 5 8 2 Cooling lo Capacity Ratio VS Tubing Length Cooling Capacity Rat 5 8 3 Heating 10 12 14 16 18 20 22 24 26 28 30 Tubing Length m Capacity Ratio VS Tubing Length Heating Capacity Ratio SM DUODCI 1 A 1 GB 18 20 22 24 26 28 30 Tubing Length m 10 12 14 16 CONTENT S19 Airwell PRESSURE CURVES 6 PRESSURE CURVES 6 1 Model FLO 9 25 DUO 50 DCI 6 1 1 Cooling Test Mode Suction Pressure Vs Outdoor Temp Cooling 22 15 24 17 27 19 29 21 32 23 Suction Pressure kPa Outdoor DB Temperature C Discharge Pressure Vs Outdoor Temp Cooling Discharge Pressure kPa 20 25 30 35 Outdoor DB Temperature C SM DUODCI 1 A 1 GB CONTENT 6 1 PRESSURE CURVES Airwell 6 1 2 Heading Test Mode Suction Pressure Vs Outdoor Temp Heating Suction Pressure kPa 5 0 5 Outdoor WB Temperature C Discharge Pressure Vs Outdoor Temp Heating Indoor DB 15 20 25
21. CONTENT 550 580 450 480 350 370 39 52 39 52 26 39 26 40 202 285 1 Rating conditions in accordance with ISO 5151 and ISO 13253 for ducted units and EN14511 2 Airflow in ducted units at nominal external static pressure 3 Sound power in ducted units is measured at air discharge 4 Sound pressure level measured at 1 meter distance from unit 16 810 11 885 7 1 5 SM DUODCI 1 1 GB Airwell PRODUCT DATA SHEET 2 2 3 K 9 DCI Specifications Model Indoor Unit Type K 9 DCI Cassette Instalaton Fan Motor Output W 36 Power Supply V Ph Hz 220 240 1 50 Fan Type amp Quantity Centifugal 1 Airflow H M L m hr 530 600 500 530 435 450 Cooling Heating Sound Pressure Level Cooling Heating Sound Power Level FONS L H dB A 42 48 42 47 Cooling Heating dB A 32 38 32 37 1 571 571 5 N INDOOR Dimensions m Weight K PacKage Dimensions m 68 Stacking Height eee 6 7 Heating Elements KW A 1 Moisture Removal Condensate Drain Tube 1 0 mm 9 2 2 4 12 DCI Specifications Model Indoor Unit Type K 12 DCI Cassette FinstallaionMethod Power Supply V Ph Hz 220 240 1 50 Fan Type amp Quantity Centifugal 1 Airflow diss H M L m hr 580 620 510 560 435 450 Cooling Heating Sound Level SUNS TIWAN TONG L H dB A 42 49 42 48 Cooling Heating Sound Level ound Pressure Leve dB A 32 38 32 38
22. Change to high speed and Check power capacitor supply to motor is higher than 130VAC for Triac controlled motor or higher than 220VAC for fixed speed motors if OK replace capacitor if not OK replace controller Compressor does not start Jumper settings of Use diagnostics see 1 2 below outdoor unit is not information on MSMP board correct One indoor is operating in The communication Check and correct the communication cool mode with no wires of the two wires connection capacity and the other unit indoor units are has water leaks freezing switched problems One indoor is operating in heat mode with a limited capacity and the coil on the other unit is very hot Compressor operate but EEV is stuck in close Check EEV unit generate no capacity position One unit only is operating Communication Use diagnostics information on MSMP problems All others Specific problems of Use diagnostics information on MSMP indoor or outdoor board see 1 2 below and perform units action items as recommended in single split systems SM DUODCI 1 A 1 GB CONTENT 12 1 TROUBLESHOOTING Airwell 1 2 Checking the refrigeration system Checking system pressures and other thermodynamic measures should be done when system is in Test Mode in Test mode system operates in fixed settings The performance curves given in this manual are given for unit performance in test mode when high indoor fan speed is selected Entering test m
23. Different than Outdoor Unit Mode Open louvers according to user selection Indoor fan is forced to OFF 11 23 Dry Contacts Control Dry Contact Contact Open Contact Short STBY System is Forced to STBY Night Outdoor fan speed reduced to low in cooling mode dry contact output for Alarm will be shorted when any failure exists in the system 11 14 CONTENT SM DUODCI 1 A 1 GB Airwell CONTROL SYSTEM 11 24 SW Parameters 11 24 1 Indoor Units SW Parameters General Parameters for All ModeBS Parameters defining the indoor fan speed as a function of Indoor Coil temperature in heat mode ICT ICTST Speed ICT to stop indoor fan 25 ICTVBSpeed ICT to go down to very low speed 28 ICTBSpeed ICT to start in very low speed 30 ICTHSpeed ICT to start in increase speed from very low 32 ICTTSpeed ICT to enable Turbo fan speed 40 Model Depended Parameters Wall Mounted ModeBS Parameter name DCI 35 NLOAD limits as a function of selected indoor fan speed MaxNLOADIF1C je 07 MaxNLOADIF2C MaxNLOADIF3C MaxNLOADIF4C MaxNLOADIF5C 127 Indoor Fan speeds FVLOWC 700 FLOWC 800 FMEDC 900 FHIGHC 1050 1100 FTURBOC FVLOWH 700 FLOWH 850 FMEDH FHIGHH 1150 IFTURBOH 1250 Nominal Compressor Frequenc Cassette ModeBS Parameter Name K12 12 NomLoadC NomLoadH o A 120 e e e oje ajo OJO SM DUODCI 1 A 1 GB CONTENT 11 15 CONTROL SYSTEM 11 24 2 11 16
24. EM 11 CONTROL SYSTEM 11 1 General Functions and Operating Rules for single split modeBS The DCI software is fully parametric All the model dependent parameters are shown in Blue color and with Italic style parameter The parameters values are given in the last section of this control logic chapter of the service manual 11 2 System Operation Concept The control function is divided between indoor and outdoor unit controllers Indoor unit is the system Master requesting the outdoor unit for cooling heating capacity supply The outdoor unit is the system Slave and it must supply the required capacity unless it enters into a protection mode avoiding it from supplying the requested capacity The capacity request is transferred via indoor to outdoor communication and is represented by a parameter called NLOAD NLOAD is an integer number with values between 0 and 127 and it represents the heat or cool load felt by the indoor unit 11 3 Compressor Frequency Control 11 3 1 NLOAD setting The NLOAD setting is done by the indoor unit controller based on a PI control scheme The actual NLOAD to be sent to the outdoor unit controller is based on the preliminary LOAD calculation the indoor fan speed and the power shedding function NLOAD limits as a function of indoor fan speed Indoor Fan Speed Maximum NLOAD Cooling Maximum NLOAD Heating Low MaxNLOADIFIC 177 O Max NLOADIF2C Lm Max NLOADIF3C Max
25. IL ENTERING AIR DB TEMPERATURE C 10 20 protection range 80 105 of nominal 25 50 of nominal 3 15 3 34 3 54 25 2 10 2 14 2 19 0 82 0 83 0 85 3 01 3 20 3 40 2 05 2 09 2 13 0 91 0 93 0 94 2 87 3 06 3 25 2 00 2 04 2 08 1 00 1 02 1 04 2 72 2 92 3 11 1 95 1 99 2 03 1 10 1 11 1 13 2 55 2 75 2 94 1 88 1 93 1 97 1 21 1 23 1 24 LEGEND TC Total Cooling Capacity KW SC Sensible Capacity KW Power Input KW WB WetBulb Temp C DB Dry Bulb Temp C ID Indoor OD Outdoor 5 7 2 Capacity Correction Factors Cooling Capacity Ratio Vs Outdoor Temperature 1 2 1 1 0 9 0 8 0 7 0 6 0 5 20 25 30 35 40 45 Outdoor Temperature deg C Capacity Ration SM DUODCI 1 A 1 GB CONTENT 5 13 PERFORMANCE DATA Airwell 5 7 3 Heating Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed OD COIL ENTERING AIR DB WB TEMPERATURE C ID COIL ENTERING AIR DB TEMPERATURE C 10 9 3 47 0 95 15 12 3 66 1 00 15 24 Protection Range 80 120 of nominal LEGEND TC 85 105 of nominal Total Heating Capacity KW PI Power Input KW WB Wet Bulb Temp C DB Dry Bulb Temp C ID Indoor OU Outdoor 5 7 4 Capacity Correction Factors Heating Capacity Ratio Vs Outdoor Temperature 1 2 1 1
26. MedFreqecr High tw tom Medium When compressor is switched to OFF and the heat sinK temperature is above 55 degrees the outdoor fan will remain ON in low speed for up to 3 minutes SM DUODCI 1 A 1 GB CONTENT 11 3 CONTROL SYSTEM Airwell 11 7 EEV electronic Expansion valve Control EEV opening is defined as EEV EEV EEV v EEV is the initial EEV opening as a function of the compressor frequency operation mode unit model and capacity EEV is a correction value for the EEV opening that is based on the compressor temperature e During the first 10 minutes of compressor operation EEV 0 e the first 10 minutes are over the correction value is calculated as follow EEV EEV n 1 EEV the correction based on the compressor temperature A target compressor temperature is set depending on frequency and outdoor air temperature and the actual compressor temperature is compared to the target temperature to set the required correction to the EEV opening 11 8 Reversing Valve RV Control Reversing valve is on in heat mode Switching of RV state is done only after compressor is off for over 3 minutes 11 9 lonizer Control lonizer is on when unit is on AND indoor fan is on AND lonizer power switch on lonizer is on 11 10 Electro Static Filter ESF Control ESF is on when ESF switch is on Safety switch is pressed unit is on AND indoor fan is on 11 11 Base Heater Contr
27. Service Manual Multi Split DUO 50 DCI IndoorUnits Outdoor Units 12 DCI DUO 50 DCI uS i E Hl M D Mt LU REFRIGERANT R410A HEAT PUMP SM DUODCI 1 GB SEPTEMBER 2008 CONTENT LIST OF EFFECTIVE PAGES Airwell LIST OF EFFECTIVE PAGES Note Changes in the pages are indicated by a Revision in the footer of each effected page when none indicates no changes in the relevant page All pages in the following list represent effected non effected pages divided by chapters Dates of issue for original and changed pages are Original January 2005 Total number of pages in this publication is 56 consisting of the following auc 1 UTEM PE MS 1 pec HR tartan 1 1 1 1852 1 2 1 2 6 1 3 1 3 2 1 4 1 4 3 1 5 1 5 15 1 6 1 6 2 1 7 1 7 2 1 8 1 sene 1 edes 1 10 1 10 2 1 11 1 11 16 1 12 1 12 6 1 13 1 13 2 1 Appendix A 1 Zero in this column indicates an original page Due to constant improvements please note that the data on this service manual can be modified with out notice Photos are not contractual A CONTENT SM DUODCI 1 A 1 GB 10 11 12 13 14 Table of Contents 55
28. e air thermistor OAT 46 4526776 Outside coil thermistor OCT 47 4526970 Suction tube thermistor 2 SUT2 48 452911100 Suction tube thermistor SUT3 49 4519614 Painting top cover 4519300 Nut M5 L 52 433225 Handle 4519607 Left side panel painting plate Tie CONTENT e e e je e e e eja e eje jejeje jejejejejeje je gt ININ e gt eje e je jeje e Oje je e e jea e e jejejejeje jejejej SM DUODCI 1 A 1 GB Airwell APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL INSTALLATION MANUAL DUO 50 DCI SM DUODCI 1 A 1 GB CONTENT 14 1
29. esened 27 Bad Communication Reserved 29 No Fault Feat Mode 11111116911 30 No Fault Cool Dry s Mode 1 1 1 1 0 31 No Fault Stand By 1 1 1 1 1 12 2 CONTENT SM DUODCI 1 A 1 GB Airwell TROUBLESHOOTING 1 3 2 Outdoor unit diagnosis by MSMP and corrective actions Probable Cause Corrective Action 1 Sensors failures of all types Check sensors connections or replace sensors 2 IPM Fault Electronics HW Check all wiring and jumper problem settings if OK replace electronics 3 Bad EEPROM No action unless special parameters are required for unit operation 4 DC under over Voltage Electronics HW Check outdoor unit power problem supply voltage AC under pere 1 7 outdoor unit power 7 voltage Outdoor unit Indoor and Outdoor Replace Indoor controller Communication mismatch controllers are with different versions No Communication Communication or Check Indoor to Outdoor grounding wiring is not wiring and grounding Coes 0 restart MM nud 5 low reliability wiring and grounding SM DUODCI 1 A 1 GB CONTENT 12 3 TROUBLESHOOTING Airwell 1 3 3 MSMP Fault Code for Indoor unit 12 4 RT 1 is disconnected RT 1 is shorted z H Po 5 3 EATA ASM EARRA EE EN EA Em om E 1 EH No Communication Sofi o EA EN Er EUN Bl EST
30. evel dB A Cooling Heating A Sound Pressure Level H M L L H dB A Cooling Heating A m Heating Elements KW Moisture Removal L hr NOTE 51 56 45 38 45 300 82 190 9 8 710 280 i 36 00 16 30 22 7 A 1 9 1 Rating conditions in accordance with ISO 5151 and ISO 13253 for ducted units and EN14511 2 Airflow in ducted units at nominal external static pressure 3 Sound power in ducted units is measured at air discharge 4 Sound pressure level measured at 1 meter distance from unit _CONTENT SM DUODCI 1 A 1 GB Airwell PRODUCT DATA SHEET 2 2 7 BS 12 DCI Specifications Model Indoor Unit BS 12 DCI Installation Method FLARE Power Supply V Ph Hz 220 240 1 50 Fan Type amp Quantity Centifugal 2 36 Airflow d H M L m hr 830 70 530 Cooling Heating 16 Sound Power Level L H dB A 52 59 Sound Pressure Level Cooling Heating 0 ml dB 35 42 1 Rating conditions in accordance with ISO 5151 and ISO 13253 for ducted units and EN14511 2 Airflow in ducted units at nominal external static pressure 3 Sound power in ducted units is measured at air discharge 4 Sound pressure level measured at 1 meter distance from unit SM DUODCI 1 A 1 GB CONTENT 2 5 PRODUCT DATA SHEET Airwell 2 3 Data For Outdoor Unit DUO 50 DCI Combinations Based on FLO Hea
31. g Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB TEMPERATURE C OD COIL ENTERING AIR DB WB 15 20 25 TEMPERATURE 2 13 1 98 1 83 71 8 1 2 2 1 716 ae 1 03 3 74 1 08 15 24 85 105 of nominal Protection Range 80 120 of nominal 15 12 LEGEND TC Total Heating Capacity KW PI Power Input KW WB Wet Bulb Temp C DB Dry Bulb Temp C ID Indoor OU Outdoor 5 4 4 Capacity Correction Factors Heating Capacity Ratio Vs Outdoor Temperature 1 2 1 1 0 9 0 8 07 0 6 4 0 5 1 15 10 5 0 5 10 15 Outdoor WB Temperature deg 5 8 CONTENT SM DUODCI 1 A 1 GB Capacity Ration Airwell PERFORMANCE DATA 5 5 SX 9 DCI 5 5 1 Cooling Capacity KW Run Mode Unit A or B 230 V Indoor Fan at High Speed ID COIL ENTERING AIR DB WB TEMPERATURE C OD COIL ENTERING AIR DB TEMPERATURE C 80 110 of nominal 80 105 of nominal 25 50 of nominal 10 20 protection range 25 LEGEND TC Total Cooling Capacity KW SC Sensible Capacity KW Power Input KW WB WetBulb Temp C DB Dry Bulb Temp C ID Indoor OD Outdoor 5 5 2 Capacity Correction Factors Cooling Capacity Ratio
32. it is just switched to STBY AND OCT OAT 8 Case 5 NLOAD 0 AND OCT lt OAT 8 OCT Outdoor Coil Temperature OAT Outdoor Air Temperature TLD Time from Last Deicing DI Deicing Interval Time Interval between Two Deicing interval time when compressor is first started in heat mode is 10 minutes if OCT 2 and is 40 minutes in other cases Deicing interval time is changed increased decreased in 10 minutes steps as a function of deicing time If deicing time is shorter then former deicing time the deicing interval time will be increased If deicing time is longer then former deicing time the deicing interval time will be decreased 11 8 CONTENT SM DUODCI 1 A 1 GB Airwell CONTROL SYSTEM 11 17 6 2 Deicing Protection Procedure OCT 12 0 Threshold Ti COMP O T1 T2 mex 12 minutes HEAT DT RV ON OFAN OFF EEV eee Any T1 T2 36 seconds T3 6 seconds 11 17 7 Condensate Water Over Flow Protection 1 2 Level ConnectorTop View Each of the pins P1 P2 P3 can have two options 1 When it is shorted with P4 0 When it is not shorted to P4 11 17 7 1 LeveBS Logic used in floor ceiling modeBS SM DUODCI 1 A 1 GB CONTENT 11 9 CONTROL SYSTEM Airwell Water Level LEVEL4 LEVEL2 amp 3 LEVEL1 N Pump orr NLOAD fo BLINK OPER LED JnormaL 11 17 7 2 1 Level Logic used in all modeBS e
33. l indoor unit related items control remains the same as in single split applications All outdoor unit related control logic remains the same as in single split applications The MSMP controller is responsible only for the following control Setting of system operation mode cool heat e Setting the NLOAD for the outdoor units e Controlling of the EEV s Dry contacts control 11 22 2 Compressor Frequency Control SM DUODCI 1 A 1 GB CONTENT 11 13 CONTROL SYSTEM Airwell 11 22 3 Outdoor Unit NLOAD setting The MSMP controller gets the NLOAD from each of the indoor units and sends a combined NLOAD to the outdoor unit control The combined NLOAD is a weighted average of the indoor units NLOAD The weight of the indoor units as a function of their nominal capacity Indoor Unit Capacity KW KBtu hr 11 22 4 EEV electronic Expansion valve Control EEV opening is defined as EEV EEV EEV y EEV is the initial EEV opening as a function of the compressor frequency operation mode unit model and capacity EEV is a correction value for the EEV opening that is based in cooling mode on the relevant indoor unit super heat and compressor temperature e During the first 10 minutes of compressor operation EEV 0 11 22 5 System Mode Setting and Reversing Valve RV Control The first indoor unit that is causing the system to be turned ON sets the system mode 11 22 6 Indoor Units Operation when Indoor Unit Mode is
34. n no communication STATUS LED is ON when COMP is ON and BlinKs according to diagnostics mode definitions when either fault or protection occurs FAULT LED BlinKs according to diagnostics mode definitions when either fault or protection occurs 11 12 CONTENT SM DUODCI 1 A 1 GB Airwell CONTROL SYSTEM 11 21 Test Mode 11 21 1 Entering Test Mode System can enter Test mode in two ways Automatically when the following conditions exists for 30 minutes continuously o Mode Cool Set point 16 Room temperature 27 1 Outdoor temperature 35 1 Or o Mode Heat Set point 30 Room temperature 2041 Outdoor temperature 7 1 e Manually when entering diagnostics with the following settings o Mode Cool Set point 16 o Mode Heat Set point 30 11 21 2 Unit Operation in Test Mode In test mode the unit will operate in fixed settings according to the indoor fan speed setting Indoor Fan Speed Setting Unit Setting Low Minimum Capacity Setting Nominal Capacity Setting Maximum Capacity Setting During test mode protections are disabled except for stop compressor status 11 22 Additional Functions and Operating Rules for DUAL split modeBS The DCI SW is fully parametric All the model dependent parameters are shown in Blue color and with Italic style parameter The parameters values are given in the last section of this control logic chapter of the service manual 11 22 1 System Control Concept Al
35. n1 D1 Compressor frequency is reduced by 2 to 5 Hz per minute HzDown2 02 Compressor frequency is reduced by 5 to 10 Hz per minute Stop Compressor SC Compressor is stopped 11 17 1 Indoor Coil Defrost Protection ICT Trend ICT Fast Fast No En Decreasing Increasing o s el ee E NE RR 8 lt ICT Normal 11 17 2 Indoor Coil over Heating Protection ICT Trend rast Decreasing No Change Past Decreasing Increasing CT gt 55 SC SC sc sc sc s3 lt icts55 D1 DM 02 D2 Lasers 11 6 SM DUODCI 1 A 1 GB Airwell CONTROL SYSTEM 11 17 3 Compressor over Heating Protection Compressor temperature can be in one of 5 control zones 4 in protection and 1 normal t CTT Stop Compresor CTTOH4 P3 CTTOH3 CTTOH2 CTTOH1 Control Status Stop Compressor 11 17 4 Compressor over Current Protection CCR A CCROC4 2 CCROC1 SM DUODCI 1 A 1 GB CONTENT 11 7 CONTROL SYSTEM Airwell 11 17 5 Heat SinK Over Heating Protection NA for DCI 25 and 35 HST Trend HST gt 90 85 lt HST s 90 11 17 6 Outdoor Coil Deicing Protection 11 17 6 1 Deicing Starting Conditions Deicing operation will start when either one of the following conditions exist Case 1 lt OAT 8 AND TLD gt DI Case 2 OCT OAT 12 AND TLD 30 minutes Case 3 OCT is Invalid AND TLD gt DI Case 4 Un
36. ng assy 4526456 Partition 4526203 Outdoor DCI controller English EHK P N 906 097 00 4526295 MSMP electronic box 4526227 MSMP communication board EHK P N 901 002 00 4526224 EMI filter board EHK P N 901 098 00 a IN 452823600 Therminal sheet assy 4526220 Fuse stand JEF 511B EHK P N 105 038 00 4527130 8 Poles terminal block 4526533 Fuse 65TS 25A 230V 4526314 MSMP communication wire 4526396 Choke assy 204107 Cable clip 4526225 Power lead line 4526968 Grounding wire with magnetic ring 4526223 AC IN wire 4526222 Fuse connected wire 4526226 Power connection wire 4526221 Compressor wire 433230 Valve cover 452630201 Gas valve for R410A 452630200 Gas valve for R410A 4526301 Liquid valve 4526827 Electronic expansion valve CAM BD15 FKS 1 452682800 coil red CAM MD12FKS 1 452682802 EEV coil white CAM MD12FKS 2 4526430 Valve support painting plate 4526429 Right side panel painting plate 4523446 Compressor assy 5CS130XCC03 452813100 Accumulator assy 433228 Back side net 4526775 Compressor top thermistor CTT 4526459 Condenser soldering assy 40 4526298 Bridge O2 1W1W1W IWIN IM MIN IN IN IN IN COIN D OT 5 J O NM O OO IN 41 4522509 4 way valve coil 43 4518952 4 way valve 4526969 Suction tube thermistor 1 SUT1 4526774 Outsid
37. ode Set the two indoor units to Cool 16 degrees High indoor fan speed or Heat 30 degrees High indoor fan speed and enter diagnostics Note the two indoor units should be set to the same mode and fan speed 1 3 Judgment by MSMP Diagnostics The MSMP controller has 11 LED s 1 STBY LED 5 Unit LEDs and 5 Status Fault LEDs STBY LED is ON when power is ON 5 Unit LEDs refer to four Indoor units and one Outdoor unit They will turn on one at a time and the corresponding Indoor Outdoor unit status fault code will be displayed on the Status Fault LEDs If the unit is normal no fault the unit LED and the corresponding status will be displayed for 5 seconds and move to the next unit LED On the other hand if the unit is in fault the unit LED and the corresponding fault will be displayed for 10 seconds and hence more time to read the fault code 1 31 MSMP Fault Code for Outdoor unit Preble 5 ocTi is shorted is shorted 5 5 HST is shorted when enabled jorrie nen ei 8 OAT is shorted when enabled 0 1 9 9 9 a TSUCia disconnected han erabe o 1 10 TSUC is shorted when enabled 11 IPM iz Odoorn EEPROM pop 13 DC under voltage 14 DC over voltage EE 16 Indoor Outdoor unit Communication mismatch 1 o o o 17 NS Communication EE ite 21 Deicing 22 Compressor Over Heating EN ENEN R
38. ol When OAT is connected Base Heater will be on when unit is in heating and OAT lt 2 C When OAT is disconnected Base Heater will be on when unit is in heating 11 12 Fan Mode In high medium low indoor fan user setting unit will operate fan in selected speed In Auto Fan user setting fan speed will be adjusted automatically according to the difference between actual room temperature and user set point temperature 11 13 Cool Mode NLOAD is calculated according to the difference between actual room temperature and user set point temperature by PI control In high medium low indoor fan user setting unit will operate fan in selected speed In Auto Fan user setting fan speed will be adjusted automatically according to the calculated NLOAD 11 4 CONTENT SM DUODCI 1 A 1 GB Airwell CONTROL SYSTEM 11 14 Heat Mode NLOAD is calculated according to the difference between actual room temperature and user set point temperature by PI control In high medium low indoor fan user setting unit will operate fan in selected speed In AutoFan user setting fan speed will be adjusted automatically according to the calculated NLOAD 11 14 1 Temperature Compensation In wall mounted ducted and cassette modeBS 3 degrees are reduced from room temperature reading except when in I Feel mode to compensate for temperature difference between high and low areas in the heated room and for coil heat radiation on room thermistor The tempe
39. r the system states Using MegaTool requires A computer with RS232C port A connection wire for MegaTool A special MegaTool software Use MegaTool according to following procedure Connect RS232C port in computer with MegaTool port in the connection wire tab 1 5 Simple procedures for checking the Main Parts 1 5 1 Checking Mains Voltage Replace Indoor controller Check Indoor to Outdoor wiring and grounding restart wiring and grounding Setup MegaTool software copy the software to the computer Indoor Outdoor unit controller by Run the software and choose the COM port you can monitor the A C system state in monitor Confirm that the Mains voltage is between 198 and 264 VAC If Mains voltage is out of this range abnormal operation of the system is expected If in range check the Power Circuit Breaker and look for broken or loosed cable lugs or wiring mistake s 1 5 2 Checking Power Input If Indoor unit power LED is unlighted power down the system and check the fuse of the Indoor unit If the fuse is OK replace the Indoor unit controller If the fuse has blown replace the fuse and power up again Checking Power Input procedure for the Outdoor unit is the same as with the Indoor unit SM DUODCI 1 A 1 GB CONTENT 12 5 TROUBLESHOOTING Airwell 1 5 3 1 5 4 1 5 5 1 5 6 1 5 7 Checking the PCB Appearance inspect Check discoloration nick and connection of copper foil short circuit
40. r unit controller can operate in all speeds The actual speed is set according to the cool heat load 11 4 1 Turbo Speed The Turbo speed is activated during the first 30 minutes of unit operation when auto fan speed is selected and under the following conditions Difference between set point and actual room temperature is bigger then 3 degrees e Room temperature gt 22 for cooling or lt 25 for heating 11 5 Heating Element Control Heating element can be started if LOAD gt 0 8 MaximumNLOAD AND Indoor Coil temperature lt 45 The heating element will be stopped when LOAD lt 0 5 MaximumNLOAD OR if Indoor Coil temperature gt 50 11 6 Outdoor Fan Control 7 outdoor fan speeds are determined for each model 3 speeds for cool and dry modes and 3 speeds for heat mode and a very low speed Outdoor fan speed is a function of compressor frequency and outdoor air temperature OAT 4 routines for fan control are determined The control routine selection depends on operation mode compressor speed and outdoor air temperature OAT and heat sinK temperature HST Routine Conditions Heating with OAT lt 15 C or Cooling with OAT gt 20 C or HST gt 50 C or Faulty OAT P B Cooling with 20 C gt OAT gt 7 C Cooling with 7 gt OAT Heating with gt 15 C P ERA BE ee er OFLowFreq GF lt OFMedFreg Medum Low VeryLow Low oF
41. rature compensation can be enabled disabled by shortening of J2 on the indoor unit controller J2 Shorted J2 Opened Wall mounted Compensation Disabled Compensation Enabled Compensation Enabled Compensation Disabled Compensation Enabled Compensation Disabled Floor Ceiling Compensation Disabled Compensation Enabled 11 14 2 Indoor Fan Control in Heat Mode Indoor fan speed depends on the indoor coil temperature IFAN Speed Turbo Any VL Stop ICTST ICTVL ICTH 11 15 Auto Cool Heat Mode When in auto cool heat mode unit will automatically select between cool and heat mode according to the difference between actual room temperature and user set point temperature AT Unit will switch from cool to heat when compressor is off for 3 minutes and AT lt 3 Unit will switch from heat to cool when compressor is off for 5 minutes and AT lt 3 SM DUODCI 1 A 1 GB CONTENT 11 5 CONTROL SYSTEM Airwell 11 16 Dry Mode As long as room temperature is higher then the set point indoor fan will worK in low speed and compressor will worK between 0 and MaxNLOADIF1C Hz When the room temperature is lower than the set point compressor will be switched OFF and indoor fan will cycle 3 minutes OFF 1 minute ON 11 17 Protections There are 5 protection codes Normal Norm unit operate normally Stop Rise SR compressor frequency can not be raised but does not have to be decreased HzDow
42. ting Indoor Units RoomA RoomB Kotal Power Room Room B Total Power Combinations em 2500 E 3400 E 1220 3700 420 980 950 4000 375 1250 3500 1030 4200 1575 1220 4350 420 1275 950 5200 375 1760 365425 5000 1470 6200 1670 1400 6000 410 2100 1250 7100 320 1960 25 35 5500 1850 6550 1760 1400 6240 410 2130 1250 7400 320 2020 m 6000 2040 6900 1970 1400 6480 410 2160 1250 7750 320 2050 2 3 1 Correction Factors Capacity Power input Model Cooling Heating Cooling Heating X25 1 0 0 95 1 0 1 08 35 1 02 0 96 1 0 1 08 BS35 DCI K25 K35 2 3 2 Calculation Example FLO25 K35 Cooling Mode indoor unit cooling Capaciy w Power tput MI 1850 x 2500 5000 840 2 3 3 K35 K35 Heating Mode IndoorUnit Heating Capacity W Power Input W Room B K35 3000 x 0 97 2910 2040 x 0 99 2019 2910 2910 5820 2019 2019 4038 2 6 SM DUODCI 1 A 1 GB Airwell RATING CONDITIONS 3 1 RATING CONDITIONS Standard conditions in accordance with ISO 5151 ISO 13253 for ducted units and EN 14511 Cooling Indoor 27 DB 19 C WB Outdoor 35 C DB Heating Indoor 20 C DB Outdoor 7 C DB 6 C WB Operating Limits Indoor Outdoor Upper limit 32 C DB 23 C WB 46 C DB 1PH 198 264 V Voltage
43. tion TIMER INDICATOR Lights up during Timer and Sleep operation FILTER INDICATOR Lights up when Air Filter needs to be cleaned COOLING INDICATOR Lights up when system is switched to Cool Mode by using the Mode Switch on the unit HEATING INDICATOR Lights up when system is switched Heat Mode by using the Mode Switch on the unit Mode SWITCH Every short pressing the next operation mode is selected in this order SB Cool Mode Heat Mode SB COOL HEAT OFF In long pressing system enters diagnostic mode For short pressing RESET FILTER SWITCH When Filter LED is on turn off the FILTER INDICATOR after a clean filter has been reinstalled When Filter LED is off enable disable the buzzer announcer if selected SM DUODCI 1 A 1 GB CONTENT 11 11 CONTROL SYSTEM Airwell 11 20 2 Indoor Unit ControBS and Indicators for LCD Display STBY Oper ESF Fresh Air Timer Filter d c AUTO 291 Gall 5 OSL CCC To Bg Jor emn peres sen semen emer E joren ores omes orm co User User User User User 8 High i 4 setting setting setting setting setting IFAN IFAN IFAN IFAN IFAN SS 9 amp Turbo speed speed speed speed speed AUTO OFF 99 Auto foe fone ow one one 11 20 3 Outdoor Unit Controller Indicators Unit has three LED s SB LED is ON when power is ON 230 VAC even whe
44. xcept for floor ceiling modeBS care Overflow when Overflow when Overflow unit is ON unit is OFF Water Level normal 1 1 1 1 1 1 1 I 1 1 1 1 1 ON 1 1 1 1 1 1 OPER LED BLINK I 1 1 1 i NLOAD is i NLOAD fo forced to 0 i i i ON 1 PUMP oer 1 Nl gt 8 min 11 10 CONTENT SM DUODCI 1 A 1 GB Airwell CONTROL SYSTEM 11 18 Indoor Unit Dry Contact Indoor unit Dry contact has two alternative functions that are selected by J8 48 Open Presence Detector Connection Forced to STBY J8 Short Power Shedding Function Limit NLOAD 11 19 Operating the Unit from the Mode Button Forced operation allows starting stopping and operating in Cooling or Heating in pre set temperature according to the following table Forced operation Mode Pre set Temperature Cooling 20 C Heating 28 C 11 20 On Unit ControBS and Indicators 11 20 1 Indoor Unit Controller ControBS and Indicators for All ModeBS Except for Floor Ceiling model STAND BY INDICATOR 1 Lights up when the Air Conditioner is connected to power and ready to receive the R C commands 1 Lights up during operation 2 BlinKs for 300 msec to announce that a R C infrared OPERATION INDICATOR signal has been received and stored 3 BlinKs continuously during protections according to the relevant spec sec
Download Pdf Manuals
Related Search