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Airwell KXV Series, Engineering Manual

The Airwell KXV Series is a cutting-edge HVAC system designed for optimal energy efficiency. Ensure proper installation and maintenance by downloading the free Engineering Manual from manualshive.com. This comprehensive manual will provide you with all the information you need to maximize the performance of your Airwell KXV Series unit.

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Engineering manual 

 

228

1.5 Electric wiring 

1.5.1 Requirement of the wiring 

 

 
For VRF system, all indoor units must be supplied with one power supply (220V/50Hz 1 phase). IDU power supply can 
either use the same power supply from outdoor unit(preferred) or use a separate power supply. For indoor unit wires 
requirement, please refer to indoor installation manual; outdoor unit wires requirement is as below: 
(1) Power supply wire: 

Ourdoor unit model 

Phase and 

Frequency 

Volts 

ELB  Wire section  Maximum length 

112 Single 

phase-50Hz 

220V

≥

 40A

6mm

2

 25m 

140 Single 

phase-50Hz 

220V

≥

 40A

6mm

2

 25m 

ELB:Electricity leakage breaker 
 
(2)Communication wire: 
Main communication wire  R/C communication wire

1.02mm twisted wires 

1.02mm twisted wires 

≤

 2000m 

≤

 100m 

 
 

 

 
 
 
 

Chart 1-29 

Summary of Contents for KXV Series

Page 1: ...Engineering Manual VRF Air Conditioning System VRF Outdoor Unit YAV Cassette CKV KXV Floor Ceiling SXV Ducted DLV DSV Wall Mounted PNV 11 2 to 14 kW 12 5 to 16 kW...

Page 2: ...63 1 SLIM CASSETTE SERIES CKV 64 2 CASSETTE SERIES KXV 89 3 FLOOR AND CEILING SERIES SXV 114 4 SLIM DUCTED SERIES DLV 139 5 DUCTED SERIES DSV 162 6 WALL MOUNTED SERIES PNV 178 PART IV OUTDOOR UNIT 20...

Page 3: ...Engineering manual 3 1 R410A SATURATION TABLE GAUGE PRESSURE 365 2 PC MONITOR OPERATION INSTRUCTION 366...

Page 4: ...CRT Calculated Room Temperature CST Compressor Suction Temperature CST1 Inverter Comp Suction Temperature CST2 Fixed speed Comp Suction Temperature CTEST Charge test CTT Compressor Top Temperature DB...

Page 5: ...n Test ITEST Installation test for ODU IDU address setting LCD Liquid Crystal Display LHHL Leave Home high limitation LHLL Leave Home low limitation LPS Low Pressure Sensor LPV Low Pressure Valve LS L...

Page 6: ...Rounds per second mechanical frequency RTC Real Time Clock RV Reverse Valve S_ Seg Seven Segment Display SB STBY Stand By SH Supplementary Heater SPI Serial Peripheral Interface SPL Set Point Limiting...

Page 7: ...Engineering manual 7 Part I Product Outline 1 VRF SYSTEM OUTLINE 8 2 PRODUCT MODEL INTRODUCTION 9 3 VRF SYSTEM PROJECT DESIGN 13...

Page 8: ...work in a comfortable and health environment to remove the pressure of modern competitory society To satisfy these commands Airwell design the VRF conditioner system independently We believe the cond...

Page 9: ...ty KBTU h Type Model Name Model Dimensions W H D 007 009 012 015 018 021 024 030 036 048 578 578 219 CKV 578 578 270 840 840 230 Cassette KXV 840 840 300 820 630 190 Floor Ceiling SXV 1200 630 190 750...

Page 10: ...nual 10 2 2 Outdoor unit model Model name YAV112 YAV140 HP 4 5 KBTU h 38 2 47 8 Dimensions W H D 950 1277 340 Number of max connectable indoor units 6 8 Max allowable indoor outdoor capacity ratio 51...

Page 11: ...be controlled No limit No limit 1 16 group up to 16 units 1 group up to 16 units 1 unit Use limitations The remote length limit to 8 m The remote length limit to 8 m The wiring length limit to100 m T...

Page 12: ...oor unit YA V 140 Front discharging multi variable air conditioning Variable 10 times of unit s capacity KW PN V 012 PN Wall mounted type CK Slim cassette type KX Cassette type DL Slim ducted type DS...

Page 13: ...ure range The MINI VRF system can work at very low temperatures in cool and heat modes The work range is just as the table below Indoor Outdoor Mode Range DB WB DB WB Upper Limit 32 23 46 Cooling Lowe...

Page 14: ...ation meeting Select the indoor units for every room According the capacity correction curve ensure whether the indoor units satisfy the requirement of the room if not refresh select the indoor units...

Page 15: ...Engineering manual 15 3 3 Indoor units cooling capacity correction based on indoor WB temp and outdoor DB temp Chart 3 1 Chart 3 2...

Page 16: ...Engineering manual 16 3 4 Indoor units heating capacity correction based on indoor DB temp and outdoor WB temp Chart 3 3 Chart 3 4...

Page 17: ...e air temp WB RH85 15 10 8 6 5 4 2 1 0 1 2 3 4 5 6 Correction coefficient 0 97 0 97 0 96 0 94 0 91 0 89 0 87 0 87 0 87 0 88 0 89 0 91 0 92 0 95 1 0 To calculate the heating capacity with consideration...

Page 18: ...Engineering manual 18 3 6 Correction factor according to piping equivalent length Cooling mode Heating mode Chart 3 5 Chart 3 6...

Page 19: ...Engineering manual 19 3 7 Correction factor for indoor units capacity outdoor capacity ratio Chart 3 7 Chart 3 8...

Page 20: ...the No 1 distribution joint 40 l1 l2 ln Max length of each distribution tube 30 Allowable tubing length l1 l2 ln 1 L1 Total max tubing length including length of each distribution tube only narrow tub...

Page 21: ...16 11 2 14 16 Gas tubing mm 15 88 15 88 19 05 19 05 19 05 22 23 19 05 19 05 22 23 Liquid Tubing mm 9 52 9 52 12 70 Below Capacity kW 20 2 Over Capacity kW 14 Main tubing size LA 25 25 56 ODU model 11...

Page 22: ...acity kW 0 6 2 2HP Gas tubing mm 12 7 15 88 Liquid Tubing mm 9 52 Table 3 5 Main tubing size after distribution LB LC Indoor unit tubing connection Indoor unit type 007 009 012 015 018 021 024 030 036...

Page 23: ...connect the pipe and distribute the refrigerant it helps to make the piping system more simple and installation more convenient so it can save copper pipe s use and installation time 3 10 1 T joints...

Page 24: ...horizontal If the main tubing is vertical provide a raised starting portion of each branch If there are height differences between indoor units or if branch rubbing that follows a distribution joint...

Page 25: ...rant The required additional refrigerant charge kg 25 a 55 b 120 c 10 3 a Total length of 6 35 m liquid tube b Total length of 9 52 m liquid tube c Total length of 12 7 m liquid tube 3 11 2 Judge the...

Page 26: ...the system will exit CTEST The PCB Display CTEST not blinking If the PCB display AXXXX it means the system need add XXXXg refrigerant If the result is PASS ovcHA or cksys The system continue running...

Page 27: ...se a house with two bedrooms one dining room and one drawing room in uptown to introduce how to design our VRF system project The size and configuration of this house is as the picture below Bedroom 1...

Page 28: ...ner s demand The house owner s demand The CKV is the most suitable according the configuration Outdoor unit location The B point in the picture above Reason 1 The house owner s demand 2 Away from the...

Page 29: ...07 CKV018 Nominal Cooling capacity 2 2kW 2 2kW 5 6kW Indoor WB temp correction factor 1 09 1 09 1 09 Outdoor DB temp correction factor 0 95 0 95 0 95 Piping equivalent length correction factor 93 93 9...

Page 30: ...efrigerant pipe system According the house size and conditioner installation location finally confirm the piping system as the pictures below the tube size is confirmed based on the regular refer to s...

Page 31: ...n tube AB Gas tube 5 8 inch Liquid tube 3 8 inch 2 BC Gas tube 5 8 inch Liquid tube 3 8 inch 3 BD Gas tube 1 2 inch Liquid tube 1 4 inch 1 5 CE Gas tube 1 2 inch Liquid tube 1 4 inch 1 5 CF Gas tube 1...

Page 32: ...m F Install indoor units outdoor units refrigerant pipe condensing water pipe power source wire communication wire and LWC according the outdoor unit and indoor unit installation manuals G Vacuum and...

Page 33: ...oduction To make the VRF system project design more convenient and easy our software team design a selection software This software can finish the outdoor and indoor units selection automatically Refe...

Page 34: ...working and control elements introduction 1 REFRIGERATION SYSTEM OUTLINE 35 2 INDOOR UNIT S FAN CONTROL 40 3 OUTDOOR UNIT S FAN CONTROL 43 4 COMPRESSOR CONTROL 46 5 EEV ELECTRONIC EXPANSION VALVE CONT...

Page 35: ...Engineering manual 35 1 Refrigeration system outline 1 1 Refrigeration system diagram Outdoor unit refrigeration system diagram Cooling Chart 1 1 a...

Page 36: ...Engineering manual 36 Heating Chart 1 1 b...

Page 37: ...nd calculating the compressor load in cooling mode LP Switch Low pressure switch To stop the system for the system protection when the low pressure falls below the set values Filter To filter the impu...

Page 38: ...n flow Restrictor To reduce the refrigeration flow fluctuation Strainer To filter the impurity in system refrigeration ICIT Indoor coil inlet temperature The data for EEV control ICMT Indoor coil midd...

Page 39: ...Compressor Module Heat protection 95 95 Fan motor 140W 140W Fan motor temperature protection 110 5 110 5 High pressure switch on 4 2MPa off 3 7MPa on 4 2MPa off 3 7MPa Protection device Low pressure s...

Page 40: ...d Compensation for Other Modes Normal 0 0 H1 50RPM 50RPM H2 100RPM 100RPM H3 highest installation 150RPM 150RPM If set unit from Operation mode cool heat dry except Fan mode to OFF IFAN should stop 60...

Page 41: ...is set according to the following rules In high medium low user setting follow user setting In auto fan mode the fan speed will be set according to IDU load Hot Keep rules To avoid blow cool air in h...

Page 42: ...ual 42 2 2 5 Fan Mode In high medium low user setting follow user setting In auto fan mode the fan speed will be set according to the following graph High Speed Medial Speed Low Speed IFAN Speed Chart...

Page 43: ...eding the pressure ratio Avoid too noise Heat Mode Keep the evaporating temperature to the appropriate value Avoid exceeding pressure ratio Avoid exceeding 12 degrees evaporating temperature The Outdo...

Page 44: ...or Reverse valve and IDU EEV will be turned OFF Hot gas bypass valve will be turned on ODU EEV will be turned to 480 plus 3 2 2 Fault Indication Fault will be reported through local and main bus commu...

Page 45: ...on After COMP is OFF the OFAN will run 1 minute at 700 rpm 3 5 Silence mode Upon receiving Silence mode the max speed of the OFAN will be limited to 800rpm only in Cool It will be back to its normal o...

Page 46: ...g The above chart is the chart of compressor control The compressor speed is controlled by the load the system pressure and protection status The follow chart is the difference about compressor contro...

Page 47: ...eed RPS heat i ng 0 20 40 60 80 100 120 0 2 4 6 8 10 12 14 16 18 Tot al IDU Load Kw Com p Speed RPS OAT 15 OAT 7 OAT 24 Cooling 10 0 10 20 30 40 50 60 70 80 90 100 0 500 1000 1500 2000 2500 3000 3500...

Page 48: ...120 0 2 4 6 8 10 12 14 16 18 Tot al I DU Load Kw Com p Speed RPS O AT 5 O AT 35 O AT 46 4 2 2 Target Speed by pressure setting For cooling mode The compressor speed is corrected by the evaporating tem...

Page 49: ...evel Protection level definition There are six protections levels Normal No protection status is On Normal by indoor A1 System is in protection Stop Rise SR System is in protection D1 System is in pro...

Page 50: ...DerB DerB RangeF SC SC SC RangeE NormA SR D1 D2 D2 D2 RangeD Norm NormA SR D1 D2 D2 RangeC Norm Norm NormA SR D1 D2 RangeB Norm Norm Norm NormA SR D2 RangeA Norm Note The ranges parameters will be EE...

Page 51: ...ompressor shutdown due to high pressure in the system The discharge pressure is translated into saturation temperature refer to Sect for the saturation table This saturation temperature is called cond...

Page 52: ...100steps to 450steps 5 1 2 EEV resetting homing When ODU is Power On ODU Main will be reset The process about reset is shown in the below graph first EEV is opened 240 steps is closed 520 steps and th...

Page 53: ...eat Mode The open loop value for the main EEV will be determined according to IDU total capacity For Cool Mode It will always be 480steps 5 3 EEV corrections 5 3 1 Indoor unit s EEV Corrections The in...

Page 54: ...correction in cool mode for the main EEV follows 480steps The main EEV for heat mode will be controlled in a way to keep the Target compressor discharge super heat SHdischarge within normal operation...

Page 55: ...t will be replaced as a value In Heat mode if OCMT has fault it will be replaced as a value OCOT sensor fault In Cooling mode if OCOT has fault it will not be replaced as a value In Heat mode if OCOT...

Page 56: ...ely Exist Deicing System will exit deicing according to the inputs of OCMT minimum deicing time and the protection of compressor Deicing cycle operating procedure Parameters Nomenclature Name Descript...

Page 57: ...e condition ODU starts to calculate TLOR till last Oil return timer calculation when it is start up or exit from last Oil return or Deicing Oil return cycle process For cooling mode Target RPS OFF OFF...

Page 58: ...s in Heat mode once IDU coil overheating protection act IDU send signal to ODU ODU send IDU EEV steps the IDU Once IDU exit the IDU coil overheat protection IDU send signal to ODU ODU send order to de...

Page 59: ...address 11 IDU 12 AC IDU Power up register failure 11 IDU 13 Ad IDU MAC address failure 11 IDU 14 AE AF For future TBD IDU 4 IDU 15 b1 Defrost 5 IDU 16 b2 RAT sensor is fault 14 IDU 17 b3 For future...

Page 60: ...E8 Under voltage protection Driver 13 ODU 53 E9 Over voltage protection Driver 13 ODU 54 EA Driver current detection circuit fault Driver 13 ODU 55 Eb Momentary power failure detection Driver 13 ODU...

Page 61: ...evel 1 5 Malfunction list Malfunction code Malfunction name level A2 Water overflow 5 b1 Defrost 4 5 bd Overheating 4 5 bE Leakage 4 FC Deicing 5 FD Oil returning cycle 5 ODU actions Take special acti...

Page 62: ...Level 13 ODU actions Compressor OFF Indicating malfunction code when ODU malfunction occurs IDU actions HE off ION ESF off FA off IDU LED Power is on and OPER is blink Others are off IR Receiver run...

Page 63: ...ing manual 63 Part III Indoor unit 1 SLIM CASSETTE SERIES CKV 64 2 CASSETTE SERIES KXV 89 3 FLOOR AND CEILING SERIES SXV 114 4 SLIM DUCTED SERIES DLV 139 5 DUCTED SERIES DSV 162 6 WALL MOUNTED SERIES...

Page 64: ...Engineering manual 64 1 Slim cassette series CKV Model KBTU h Brand CKV007 7 5 CKV009 9 5 CKV012 12 2 CKV015 15 3 CKV018 19 1 Airwell...

Page 65: ...ing amperes Heating A 0 2 0 2 0 3 0 4 0 4 Type Turbo fan 1 Airflow m3 h 370 320 280 430 370 310 520 440 370 630 520 430 720 640 570 Fan motor Output kW 0 03 0 09 Operating sound H M L dB A 33 32 31 34...

Page 66: ...eiling panel to install the unit Fresh air from outside and treated air distribution to an adjacent room There are two side openings provided for installing separate ducts for outside air intake and t...

Page 67: ...ameter to ensure enough airflow and lower operating sound level Agile air flow discharging This air conditioner has the optional 4 way 3 way 2 way air discharging according to installation location Us...

Page 68: ...Engineering manual 68 1 3 Dimension diagram and exploded view 1 3 1 Dimension diagram Chart 1 5 Chart 1 6...

Page 69: ...Engineering manual 69 1 3 2 Exploded view Unit body exploded view Chart 1 7...

Page 70: ...Engineering manual 70 Panel exploded view Chart 1 8...

Page 71: ...3 EPS 3 Front Frame 1 16 466130010R DC Motor 40W CN60x60 DC Motor 40W CN60x60 Low height 1 17 465020104 Airwell 1 17 465020105 Airwell Front Frame 725x725 Airwell CN 1 18 433050 Step Motor 2 20 464250...

Page 72: ...ssy VRF CNV 28 1 50 463650033 Gas Pipe Assy VRF CNV 28 1 51 464250047 Fixing Plate Evaporator Low height 2 52 470100003 Cushion Rubber 3 57 465120005 Air Intake Panel Low 1 59 453195100 Drain Jam 1 61...

Page 73: ...PS 3 Front Frame 1 16 466130009R DC Motor 67w SIC 72FV F167 1 CN 1 17 465020104 Airwell 1 17 465020105 Airwell Front Frame 725x725 Airwell CN 1 18 433050 Step Motor 2 20 464250066 Fixing Plate Pump As...

Page 74: ...50 463650035 Gas Pipe Assy VRF CNV 56 1 51 453188400 Fixing Plate Evaporator high 2 52 470100003 Cushion Rubber 3 57 453190900 Air Intake Panel high 1 59 453195100 Drain Jam 1 61 465800091 Linkage As...

Page 75: ...Engineering manual 75 1 4 Electric board wiring diagram Chart 1 9...

Page 76: ...Engineering manual 76 1 5 Pipe size demand Liquid pipe dimension inch Gas pipe dimension inch CKV007 1 4 1 2 CKV009 1 4 1 2 CKV012 1 4 1 2 CKV015 1 4 1 2 CKV018 1 4 1 2...

Page 77: ...access to the base of the indoor unit while providing enough space from the ceiling 8 Use serrated rubber under the unit and flexible joints to avoid resonance vibrations Notice 1 Do not install the...

Page 78: ...lation A Decide ceiling opening size 1 Grid ceiling installation situation 600x600 standard ceiling Because this unit is a mini cassette there is no need to make an opening cut on the ceiling just rem...

Page 79: ...ate for a distance between the bottom of the bolt and the bottom of the unit of more than 15mm as shown in Chart 1 12 4 In order to prevent a possible looseness it is recommended to use 3 hexagonal nu...

Page 80: ...ntinuous operating temperature of 60 The ducts can be of the flexible type with a spring core or of corrugated aluminium covered inside with an insulating material 12 to 25 mm thick glass fiber 5 When...

Page 81: ...ipe 2 Use the drain hose Accessory to change the direction 3 Insert the drain hose until it connects the drain port very well and then secure it tightly with the hose clamp Accessory 4 After checking...

Page 82: ...N ON Caution 1 Cut the power supply when change the height compensation setting 2 If you feel too noisy please switch the DS11 and DS12 to lower height code level Caution 1 Do not raise the drain pipe...

Page 83: ...lock 3 Press the wirings under the wire clip tightly Tightening to torque for the terminal screws Use the correct screwdriver for tightening the terminal screws If the blade of screwdriver is too smal...

Page 84: ...Size Wire Size CKV007 CKV009 CKV012 CKV015 CKV018 16A Must comply with maximum current and local codes 0 75mm2 Twisted pair wires 1 0 mm2 All field supplied parts and materials and electrics works mus...

Page 85: ...anel 725 725 Airwell Select one type these two Optional outfit if require please purchase it additional LWC Optional Optional outfit if require please purchase it additional LWCS Optional Optional out...

Page 86: ...downwards and spread the air evenly throughout the room 4 FORCE COOLING HEATING The unit offers a hidden MODE button under the grille after pressing this button unit runs cooling or heating if control...

Page 87: ...show that timer counting is lost E FILTER INDICATOR This LED will be on when air filter requires cleaning F MODE RESET BUTTON If filter LED is ON a short pressing of the mode button will reset filter...

Page 88: ...button to turn OFF the indicator Note Do not operate the unit without filters 1 9 4 Care and maintenance Cleaning the Air Conditioner 1 Wipe the unit with a soft dry cloth or clean it with a vacuum cl...

Page 89: ...Engineering manual 89 2 Cassette series KXV Model KBTU h Brand KXV021 21 5 KXV024 24 2 KXV030 30 7 KXV036 37 5 Airwell...

Page 90: ...1 Type Turbo fan 1 Airflow fate m3 h 1080 980 880 1140 1000 910 1490 1370 1250 1650 1510 1360 Fan motor Output kW 0 07 0 15 Operating sound H M L dB A 46 43 41 46 44 42 49 47 45 53 50 47 Unit mm 840...

Page 91: ...m outside and treated air distribution to an adjacent room This characteristic is almost the same as CKV series Perfect blow design 4 way of three dimensional blow can make soft airflow arrive everywh...

Page 92: ...Engineering manual 92 2 3 Dimension diagram and exploded view 2 3 1 Dimension diagram KXV021 KXV024 B 230mm KXV030 KXV036 B 300mm Chart 2 3 Chart 2 4...

Page 93: ...Engineering manual 93 2 3 2 Exploded view Unit body exploded view Chart 2 5...

Page 94: ...Engineering manual 94 Panel exploded view Chart 2 6...

Page 95: ..._CN 1 22 201242800078 RoHS Connection Support 1 23 467300126R Controller VRF K IDU 1 23 467300076R Power Board VRF Cassette 1 24 467400046 IDU Coil Input Temperature Sensor CNV VRF 1 24 467400038 ODU...

Page 96: ...r 1 57 201142800079 RoHS Air Intake Assy 1 58 P0000146558 Cover1 Front Plate 1 59 P0000146559 Cover2 Front Plate 1 60 P0000146560 Cover3 Front Plate 1 61 P0000146561 Cover4 Front Plate 1 62 2012420000...

Page 97: ...VRF_CN 1 22 201242800078 RoHS Connection Support 1 23 467300126R Controller VRF K IDU 1 23 467300076R Power Board VRF Cassette 1 24 467400046 IDU Coil Input Temperature Sensor CNV VRF 1 24 467400038 O...

Page 98: ...ixer 1 57 201142690001 RoHS Air Intake Assy 1 58 P0000146558 Cover1 Front Plate 1 59 P0000146559 Cover2 Front Plate 1 60 P0000146560 Cover3 Front Plate 1 61 P0000146561 Cover4 Front Plate 1 62 2012420...

Page 99: ...Engineering manual 99 2 4 Electric board wiring diagram Chart 2 7...

Page 100: ...Engineering manual 100 2 5 Pipe size demand Liquid pipe dimension inch Gas pipe dimension inch KXV021 3 8 5 8 KXV024 3 8 5 8 KXV030 3 8 5 8 KXV036 3 8 5 8...

Page 101: ...indoor unit while providing enough space from the ceiling 8 Use serrated rubber under the unit and flexible joints to avoid resonance vibrations Notice 1 Do not install the cassette in a room where ga...

Page 102: ...tal 1 Please cut a quadrangular hole of 880 880mm in the ceiling according to the shape of the installation paper board Refer to Chart 2 9 The centre to the hole should be at the same position of that...

Page 103: ...des of ceiling are even The body s lower part should sink into the ceiling for 10 12mm Refer to Chart 2 10 Location the air conditioner firmly by wrenching the nuts after having adjusted the body s po...

Page 104: ...and its opposite sides to the hooks of corresponding water receiver Refer to chart 2 15 Then hang the other two panel hooks onto corresponding hangers of the body Refer to chart 2 15 Adjust the four p...

Page 105: ...appropriate tightness the screw If the gap between the panel and ceiling still exists after fastening the screws the height of the indoor unit should be modified again Refer to chart 2 18 left You can...

Page 106: ...dia 37 39mm in dia 32mm It could be bought at local market or from your dealer Set the mouth of the drainpipe onto the root of the body s pump pipe and clip the drainpipe and the Out let pipe sheath f...

Page 107: ...er 50 mm higher than the ground or the bottom of the drainage chute and do not immerse it in water If you discharge the water directly into sewage be sure to make a U form aqua seal by bending the pip...

Page 108: ...cation and R C wiring 1 Unscrew and remove the service lid 2 Connect the R C wirings to R1 R2 terminal block and the main bus wirings to F1 F2 terminal block 3 Press the wirings under the wire clip ti...

Page 109: ...e Size KXV021 KXV024 KXV030 KXV036 16A Must comply with maximum current and local codes 0 75mm2 Twisted pair wires 1 0 mm2 All field supplied parts and materials and electrics works must conform to lo...

Page 110: ...lsory Optional outfit please purchase it additional LWC Optional Optional outfit if require please purchase it additional LWCS Optional Optional outfit if require please purchase it additional RC3i 1...

Page 111: ...downwards and spread the air evenly throughout the room 4 FORCE COOLING HEATING The unit offers a hidden MODE button under the grille after pressing this button unit runs cooling or heating if contro...

Page 112: ...o show that timer counting is lost J FILTER INDICATOR This LED will be on when air filter requires cleaning F MODE RESET BUTTON If filter LED is ON a short pressing of the mode button will reset filte...

Page 113: ...to turn OFF the indicator Note Do not operate the unit without filters 2 9 4 Care and maintenance Cleaning the Air Conditioner 1 Wipe the unit with a soft dry cloth or clean it with a vacuum cleaner 2...

Page 114: ...Engineering manual 114 3 Floor and ceiling series SXV Model KBTU h Brand SXV007 7 5 SXV009 9 5 SXV012 12 2 SXV015 15 3 SXV018 19 1 SXV021 21 5 SXV024 24 2 Airwell...

Page 115: ...0 4 0 4 0 5 0 7 0 8 0 9 Running amperes Heating A 0 4 0 4 0 4 0 5 0 7 0 8 0 9 Type Cross flow fan 2 Airflow m3 h 410 350 2 90 410 350 290 440 360 300 630 590 500 910 820 730 980 830 730 1000 86 0 730...

Page 116: ...The body of this type is very thin so it can save installation space Free selection from two installation forms The SXV series are provided with two installation forms you can seat it on the floor and...

Page 117: ...Engineering manual 117 3 3 Dimension diagram and exploded view 3 3 1 Dimension diagram SXV007 009 012 SXV015 018 021 024 Chart 3 3 Chart 3 4...

Page 118: ...Engineering manual 118 3 3 2 Exploded view Chart 3 6...

Page 119: ...tor 16W 900rpm PXD 22 28 36 45 VRF 1 17 464200011 Motor Support LENGTH 99 VRF PXD 1 18 436665 STEP MOTOR 1 18 263034 SWING MOTOR 1 20 465720064 Front Plate Assy ELECTRA VRF PXD22 28 36 1 21 467300085R...

Page 120: ...900rpm PXD 22 28 36 45 VRF 1 17 464200011 Motor Support LENGTH 99 VRF PXD 1 18 436665 STEP MOTOR 1 18 263034 SWING MOTOR 1 20 465720064 Front Plate Assy ELECTRA VRF PXD22 28 36 1 21 467300085R Display...

Page 121: ...r 16W 900rpm PXD 22 28 36 45 VRF 1 17 464200011 Motor Support LENGTH 99 VRF PXD 1 18 436665 STEP MOTOR 1 18 263034 SWING MOTOR 1 20 465720064 Front Plate Assy ELECTRA VRF PXD22 28 36 1 21 467300085R D...

Page 122: ...6 466130007R DC Motor 90W 1200rpm PXD56 63 VRF 1 17 464200011 Motor Support LENGTH 99 VRF PXD 1 18 436665 STEP MOTOR 1 18 263034 SWING MOTOR 1 20 465720064 Front Plate Assy ELECTRA VRF PXD22 28 36 1 2...

Page 123: ...6 466130007R DC Motor 90W 1200rpm PXD56 63 VRF 1 17 464200011 Motor Support LENGTH 99 VRF PXD 1 18 436665 STEP MOTOR 1 18 263034 SWING MOTOR 1 20 465720064 Front Plate Assy ELECTRA VRF PXD22 28 36 1 2...

Page 124: ...Engineering manual 124 3 4 Electric board wiring diagram Chart 3 7...

Page 125: ...Engineering manual 125 3 5 Pipe size demand Liquid pipe dimension inch Gas pipe dimension inch SXV007 1 4 1 2 SXV009 1 4 1 2 SXV012 1 4 1 2 SXV015 1 4 1 2 SXV018 1 4 1 2 SXV021 3 8 5 8 SXV024 3 8 5 8...

Page 126: ...ld not be any obstacles blocking the air circulation 3 A place where air circulation in the room is good 4 A place where drainage can be easily done 5 A place where noise prevention is taken into cons...

Page 127: ...10 Condensate evacuation possibilities right left rear and front in the case of a ceiling mounted unit 2 condensate outputs are available on the recovery tray Remove the wall support mounted at the r...

Page 128: ...ube locating template on the wall support Chart 3 12 Chart 3 13 After choosing your coolant tubing input location right left or rear you can set up your tubing To do this use the installation template...

Page 129: ...GAS tube Fit the nuts of the for med tubing into the recess provided on the template Secure the tubing with the clamps provided Chart 3 15 Remove the tubing template you can now install your unit on...

Page 130: ...nit to wall support FOR THE AIR INLET GRILLE 1 Pull the grille forwards 2 Remove the two end screws 3 Unscrew the central screw but do not remove it completely 4 Unhook the grid FOR THE SIDE PANELS 5...

Page 131: ...which should slope downwards in the case of a connection to the wastewater system 2 5 cm m slope An S bend must be installed on the evacuation duct below the level of the recovery tray of the unit Pr...

Page 132: ...Also break the preformed cut out in the comer of the intake grid 3 6 6 Height compensation setting Install height Height code DS11 DS12 2 3 2 7 m H0 OFF OFF 2 7 3 1 m H1 OFF ON 3 1 3 5 m H2 ON OFF 3 5...

Page 133: ...block 3 Press the wirings under the wire clip tightly Tightening to torque for the terminal screws Use the correct screwdriver for tightening the terminal screws If the blade of screwdriver is too sma...

Page 134: ...Field ELB Wire and Size Wire Size SXV007 SXV009 SXV012 SXV015 SXV018 SXV021 SXV024 16A Must comply with maximum current and local codes 0 75mm2 Twisted pair wires 1 0 mm2 All field supplied parts and...

Page 135: ...dard outfit LWC Optional Optional outfit if require please purchase it additional LWCS Optional Optional outfit if require please purchase it additional RC3i 1 Optional Optional outfit if require plea...

Page 136: ...tward and rightward upwards and downwards and spread the air evenly throughout the room 4 FORCE COOLING HEATING The unit offers a hidden MODE button under the grille after pressing this button unit ru...

Page 137: ...during normal operation This LED will blink one time when receiving message from remote controller It will blink whenever fault or protection is act Blink for 3 seconds when cool mode is selected thr...

Page 138: ...r Cleaning 1 Clean the inside of the unit with a soft dry cloth 2 Do not use hot water or volatile detergents which could damage the air conditioner panels Precautions to be taken 1 Check that there a...

Page 139: ...Engineering manual 139 4 Slim ducted series DLV Model KBTU h Brand DLV007 7 5 DLV009 9 5 DLV012 12 2 DLV015 15 3 DLV018 19 1 DLV021 21 5 DLV024 24 2 Airwell...

Page 140: ...Running amperes Heating A 0 5 0 5 0 5 0 6 0 9 1 0 1 0 Type Cross flow fan 2 Cross flow fan 3 Airflow m3 h 430 340 230 480 430 340 660 570 480 760 680 600 1000 870 730 1050 870 730 1300 1050 920 Stati...

Page 141: ...height is just 200mm and save much installation space Lower static pressure The static pressure of the series is very low so the operation sound is low Water pump with large rising height The DLV ado...

Page 142: ...Engineering manual 142 4 3 Dimension diagram and exploded view 4 3 1 Dimension diagram Model A B C DLV007 DLV015 750 696 790 DLV018 DLV024 1050 996 1090 Chart 4 3...

Page 143: ...Engineering manual 143 4 3 2 Exploded view DLV007 009 012 015 exploded view Chart 4 4...

Page 144: ...Engineering manual 144 DLV018 021 024 exploded view Chart 4 5...

Page 145: ...Coil Middle Temperature Sensor KNV VRF 1 19d 467400049 IDU Coil Output Temperature Sensor KNV VRF 1 20 464040012 Front Plate LSV22 28 36 45 VRF R410A 1 21 464040014 Back Plate LSV22 28 36 45 VRF R410A...

Page 146: ...DU Coil Middle Temperature Sensor KNV VRF 1 19d 467400049 IDU Coil Output Temperature Sensor KNV VRF 1 20 464040012 Front Plate LSV22 28 36 45 VRF R410A 1 21 464040014 Back Plate LSV22 28 36 45 VRF R4...

Page 147: ...Coil Middle Temperature Sensor KNV VRF 1 19d 467400049 IDU Coil Output Temperature Sensor KNV VRF 1 20 464040012 Front Plate LSV22 28 36 45 VRF R410A 1 21 464040014 Back Plate LSV22 28 36 45 VRF R410A...

Page 148: ...ure Sensor KNV VRF 1 20 464040013 Front Plate LSV22 28 36 45 VRF R410A 1 21 464040015 Back Plate LSV56 63 71 VRF R410A 1 22 464250127 Cover Pipe Connector LSV VRF R410A 1 23 464250128 Cover Water Pump...

Page 149: ...erature Sensor KNV VRF 1 20 464040013 Front Plate LSV22 28 36 45 VRF R410A 1 21 464040015 Back Plate LSV56 63 71 VRF R410A 1 22 464250127 Cover Pipe Connector LSV VRF R410A 1 23 464250128 Cover Water...

Page 150: ...Engineering manual 150 4 4 Electric board wiring diagram Chart 4 6...

Page 151: ...Engineering manual 151 4 5 Pipe size demand Liquid pipe dimension inch Gas pipe dimension inch DLV007 1 4 1 2 DLV009 1 4 1 2 DLV012 1 4 1 2 DLV015 1 4 1 2 DLV018 1 4 1 2 DLV021 3 8 5 8 DLV024 3 8 5 8...

Page 152: ...se reduction near bedrooms 5 Leave a minimum 250 mm free space in front of the filter 6 Allow a free service access to electrical box 7 Allow easy access to the base of the indoor unit while providing...

Page 153: ...filter is located in the rear side of the unit default form factory but can be easily relocated in the bottom of the unit if it is required For vertical installation it is recommended to relocate the...

Page 154: ...stall the inserts and fasten the unit to the wall with 3 screws The Display Control Unit is provided of a special communication cable 7 meters long terminated by a plug connected in the housing itself...

Page 155: ...m H3 ON ON Caution 1 Cut the power supply when change the height compensation setting 2 If you feel too noisy please switch the DS11 and DS12 to lower height code level COLOR CHART Conn Point Wire co...

Page 156: ...block 3 Press the wirings under the wire clip tightly Tightening to torque for the terminal screws Use the correct screwdriver for tightening the terminal screws If the blade of screwdriver is too sma...

Page 157: ...Field ELB Wire and Size Wire Size DLV007 DLV009 DLV012 DLV015 DLV018 DLV021 DLV024 16A Must comply with maximum current and local codes 0 75mm2 Twisted pair wires 1 0 mm2 All field supplied parts and...

Page 158: ...it if require please purchase it additional LWCS Optional Optional outfit if require please purchase it additional RC3i 1 Optional Optional outfit if require please purchase it with IRD RC7i 1 Optiona...

Page 159: ...zontal and vertical louvers they swing leftward and rightward upwards and downwards and spread the air evenly throughout the room 4 FORCE COOLING HEATING The unit offers a hidden MODE button under the...

Page 160: ...he unit is in protection or fault state C POWER INDICATOR Lights up in red whenever power is on Blinks for 3 seconds when heat mode is selected through mode button D TIMER INDICATOR Lights up in yello...

Page 161: ...start automatically by using its Power Failure Memory Function This function ensures that the unit will continuing working in last mode selected Otherwise the unit will keep OFF In this case please ca...

Page 162: ...Engineering manual 162 5 Ducted series DSV Model KBTU h Brand DSV018 19 1 DSV021 21 5 DSV024 24 2 DSV030 30 7 DSV036 37 5 Airwell...

Page 163: ...nning amperes Heating A 1 5 1 6 1 7 2 2 2 3 Type Turbo fan 1 Airflow m3 h 900 740 570 900 760 660 1400 1190 980 1600 1430 1260 1700 1540 1360 Static pressure Pa 25 37 Fan motor Output KW 0 23 Operatin...

Page 164: ...to 37 5 KBTU h it can satisfy room s large capacity requirement Large volume of airflow The DSV series adopt big diameter turbo fan so the volume of airflow is large and the operation sound is low Fre...

Page 165: ...Engineering manual 165 5 3 Dimension diagram and exploded view 5 3 1 Dimension diagram Chart 5 3...

Page 166: ...Engineering manual 166 5 3 2 Exploded view Chart 5 4...

Page 167: ...Engineering manual 167 5 4 Electric board wiring diagram Chart 5 5...

Page 168: ...Engineering manual 168 5 5 Pipe size demand Liquid pipe dimension inch Gas pipe dimension inch DSV018 1 4 1 2 DSV021 3 8 5 8 DSV024 3 8 5 8 DSV030 3 8 5 8 DSV036 3 8 5 8...

Page 169: ...location 1 Allow max Air flow to the desire space 2 Allow max return air flow 3 Ensure adequate drainage of condensed water 4 Ensure noise reduction near bedrooms 5 Leave a minimum 250 mm free space i...

Page 170: ...sheet Important The unit must be perfectly levelled B Holes Drilling location on the ceiling for indoor unit Model A B DSV018 DSV024 797 599 DSV030 DSV036 861 663 C Draining installation For an effici...

Page 171: ...Engineering manual 171 D Air filter access Pull the eyelets in both sides of the filter till the filter is in horizontal position Pull the air filter for further treatment Chart 5 9 Chart 5 10...

Page 172: ...unication cable The cable is connected to the display control unit by a quick connector G INSTALLATION OF DISPLAY CONTROL UNIT ON WALL Drill a 12 mm diameter hole on the wall for routing the communica...

Page 173: ...only after the first operation assuring proper transmission and reception between the Remote Control Unit and the Display Control Unit 5 6 4 Height compensation setting Install height Height code DS1...

Page 174: ...block 3 Press the wirings under the wire clip tightly Tightening to torque for the terminal screws Use the correct screwdriver for tightening the terminal screws If the blade of screwdriver is too sma...

Page 175: ...ize Wire Size DSV018 DSV021 DSV024 DSV030 DSV036 16A Must comply with maximum current and local codes 0 75mm2 Twisted pair wires 1 0 mm2 All field supplied parts and materials and electrics works must...

Page 176: ...it if require please purchase it additional LWCS Optional Optional outfit if require please purchase it additional RC3i 1 Optional Optional outfit if require please purchase it with IRD RC7i 1 Optiona...

Page 177: ...Engineering manual 177 5 9 Operation and maintenance Please refer to DLV series corrective section above...

Page 178: ...Engineering manual 178 6 Wall mounted series PNV Model KBTU h Brand PNV007 7 5 PNV009 9 5 PNV012 12 2 PNV015 15 3 PNV018 19 1 PNV021 21 5 Airwell...

Page 179: ...0 3 0 3 0 3 0 3 0 4 Running amperes Heating A 0 3 0 3 0 3 0 3 0 3 0 4 Type Cross flow fan 1 Airflow fate m3 h 420 380 340 470 380 340 500 420 350 580 470 400 700 610 500 790 680 570 Fan motor Output k...

Page 180: ...ple can install the plate on wall first and it make the installation very easy Five directions can be selected optionally to install the refrigerant pipe Excellent effect of purifying the air The PNV...

Page 181: ...Engineering manual 181 6 3 Dimension diagram and exploded view 6 3 1 Dimension diagram PNV007 009 012 PNV015 018 021 Chart 6 3 Chart 6 4...

Page 182: ...Engineering manual 182 6 3 2 Exploded view PNV007 009 012 exploded view Chart 6 5...

Page 183: ...Engineering manual 183 PNV015 018 021 exploded view Chart 6 6...

Page 184: ...52969400 Step Motor A 1 18 452969500 Step Motor B 1 21 467300175R Display Board VRF LEX 1 23 467300196R Controller VRF_WNG 1 24 467400002 IICT Indoor Input Coil Temperature Sensor VRF 1 24 467400003 I...

Page 185: ...465700003 Unit Housing Assy WMV36 1 14 4518670 WNG INSTALLATION PLATE 1 15 4518654 TUBE BRACKET 1 16 466130000 DC Motor 16W 1260rpm VRF 1 17 4518650 Motor Cover 1 18 452969400 Step Motor A 1 18 452969...

Page 186: ...17500 Horizontal flap A 1 9 452917600 Lower Louver 1 10 452930700 Vertical flap A 12 10 452918200 Vertical flap B 2 11 4518662 Bearing assy fan 1 12 453024900 Impeller fan 1 13 465700004 Unit Housing...

Page 187: ...63 VRF 1 7 453053900 Air outlet assy WNG18 1 8 465210009 Drain Pipe for Israel WNG18 24 30 1 9 452917500 Horizontal flap A 1 9 452917600 Lower Louver 1 10 452930700 Vertical flap A 12 10 452918200 Ver...

Page 188: ...Wire UL1007 26 450mm 2 WMV36 1 39 467430000 Power Supply Unit Ionizer 1 40 467480001 Ionizer WNG NWNG SERIES 1 41 465160008 Air Inlet Frame A Assy Lex 18 1 42 465360019 Cover Display Window Lex 18 1...

Page 189: ...Engineering manual 189 6 4 Electric board wiring diagram Chart 6 7...

Page 190: ...Engineering manual 190 6 5 Pipe size demand Liquid pipe dimension inch Gas pipe dimension inch PNV007 1 4 1 2 PNV009 1 4 1 2 PNV012 1 4 1 2 PNV015 1 4 1 2 PNV018 1 4 1 2 PNV021 3 8 5 8...

Page 191: ...aces indicate by arrows from the wall ceiling fence or other obstacles 7 The appliance shall be installed over 2 3m high 6 6 3 How to fix installation plate The mounting wall is strong and solid enoug...

Page 192: ...directions for installing refrigerant pipe please installing the unit according to following installation 1 Knockout hole and pull out the pipes 4 Purifying filter installation optional 2 Install the...

Page 193: ...s are properly seated on the installation plate by moving in left and right 2 Used the installation support that assemble to the unit housing to support the indoor unit in a angle about 25 than connec...

Page 194: ...amped in between the unit s hook 2 positions and installation plate 2 Press the lower left and right side of the unit against the installation plate until hooks engages with their slots sound click 3...

Page 195: ...Engineering manual 195 Purifying filter installation optional 1 Open the grille 2 Remove the air filters 3 Put air purifying filter into place as shown in illustration Chart 6 17 Chart 6 18...

Page 196: ...e the direction 3 Insert the drain hose until it connects the drain port very well and then secure it tightly with the hose clamp 4 After checking the drainage wrap the drain hose with the insulation...

Page 197: ...block 3 Press the wirings under the wire clip tightly Tightening to torque for the terminal screws Use the correct screwdriver for tightening the terminal screws If the blade of screwdriver is too sma...

Page 198: ...Wire and Size Wire Size PNV007 PNV009 PNV012 PNV015 PNV018 PNV021 16A Must comply with maximum current and local codes 0 75mm2 Twisted pair wires 1 0 mm2 All field supplied parts and materials and el...

Page 199: ...dard outfit LWC Optional Optional outfit if require please purchase it additional LWCS Optional Optional outfit if require please purchase it additional RC3i 1 Optional Optional outfit if require plea...

Page 200: ...tward and rightward upwards and downwards and spread the air evenly throughout the room 4 FORCE COOLING HEATING The unit offers a hidden MODE button under the grille after pressing this button unit ru...

Page 201: ...g mode in remote controllers is used It will blink after power off when Timers is set to show that timer counting is lost F FILTER INDICATOR This LED will be on when air filter requires cleaning G REC...

Page 202: ...y water and dry the water thoroughly 4 Push the electrostatic filter into the right position 5 Close the front panel Purification Filter Replacement The air purifying filter should be removed from the...

Page 203: ...Engineering manual 203 Part IV Outdoor unit 1 OUTDOOR UNIT 204 2 HMI HUMAN AND MACHINE INTERFACE INTRODUCTION 236...

Page 204: ...Engineering manual 204 1 Outdoor unit Model KBTU h Brand YAV112 38 2 YAV140 47 8 Airwell...

Page 205: ...r input System KW 3 635 4 572 Color RAL Oyster white RAL1013 Air circulation m3 h 6000 Refrigerant amount at shipment kg 4 5 5 5 Gas pipe Flare inch 5 8 5 8 Tubing connections Liquid pipe Flare inch 3...

Page 206: ...Engineering manual 206 1 2 Dimension diagram and exploded view 1 2 1 Dimension diagram Chart 1 1...

Page 207: ...Engineering manual 207 1 2 2 Exploded view YAV112 140 Chart 1 2...

Page 208: ...Mitsubishi SIAM VRF 1 22 469270007 Insulation Compressor CMV140 VRF 1 22 C710017 COMPRESSOR SOUND INSULATION TOP 1 23 467300124R Controller VRF ODU 1 24 467400006 SUCT Suction Temperature Sensor VRF...

Page 209: ...U 1 61 464020009 Chock support plate VRF 1 61 464250101 CHOCK COVER VRF 1 62 452892100 Heater for compressor 1 63 467300105R Capacitor PCB DCI 456 HP ODU CB 1 64 467300048 Driver Board Compressor Hita...

Page 210: ...Engineering manual 210 1 3 Electric board wiring diagram Chart 1 3...

Page 211: ...Engineering manual 211 1 4 Installation 1 4 1 Installation space requirement Chart 1 4 Chart 1 5 Chart 1 6 Chart 1 7 Chart 1 8 Chart 1 9 Chart 1 10 Unit mm...

Page 212: ...Engineering manual 212 Chart 1 10 Chart 1 11 Chart 1 12 Chart 1 13 Chart 1 14 Unit mm...

Page 213: ...be sure that all fixing terminals are securely fixed CAUTION Ensure an electrical leakage breaker is fitted This is to prevent the risk of electric shock Install drain piping according to this instal...

Page 214: ...ssure fittings made for R410A only so that water and dust does not enter Moreover do not use the existing piping because there are some problems with pressure fittings and possible impurities in exist...

Page 215: ...indoor units max YAV112 6 YAV140 50 130 8 B Standard attached fittings Please check whether the follow fittings are of full scope If there are some attached fitting free for use immediately please re...

Page 216: ...safely 4 A place that the drainage from the unit will not pose a problem 5 A place that the unit does not bother next door neighbors 6 A place where the indoor unit and outdoor units piping and wiring...

Page 217: ...rear fins with your hands Or it will hurt your hands and damage the unit A How to prevent overturn If it is necessary to prevent the unit from falling over the following method can be for your informa...

Page 218: ...t hole can be easily punched To knock out it is easily taken off by hands by punching a position at the lower side of 3 connected parts with screwdriver along the guide line After marking the knockout...

Page 219: ...g removed breakdown may happen to tubes because of invasion of dust water and foreign matter into pipe so please proceed to connection operation as following rapidly Before tightening flare nuts a lay...

Page 220: ...19 05 3 4 1000 1400 A How to braze CAUTION Do not allow anything other than the designated refrigerant to get mixed into the freezing cycle such as air etc If any refrigerant gas leaks while working...

Page 221: ...ways use a spanner and torque wrench in combination to tighten the flare nut See the following table for tightening torque Applying too much torque may cause the flares to creak Outer dia of copper pi...

Page 222: ...used when loosening or tightening flare nuts so always lock the shut off valve with a wrench and then use a torque wrench Do not place wrenches on the valve cover This may result in a refrigerant leak...

Page 223: ...No 1 distribution joint 40 l1 l2 ln Max length of each distribution tube 30 Allowable tubing length l1 l2 ln 1 L1 Total max tubing length including length of each distribution tube only narrow tubing...

Page 224: ...70 Below Capacity kW 20 2 Over Capacity kW 14 Main tubing size LA 25 25 56 ODU model 11 2 14 16 11 2 14 16 11 2 14 16 Gas tubing mm 15 88 15 88 19 05 19 05 19 05 22 23 19 05 19 05 22 23 Liquid Tubing...

Page 225: ...ogen gas bomb as shown in the figure blow and apply pressure Be sure to apply pressure from the service ports of the packed valves or ball valves at liquid side discharge gas side and suction gas side...

Page 226: ...h s environment do not discharge the refrigerant gas in the air Using a vacuum pump eliminate the remaining air nitrogen gas etc in the unit If gas remains performance and reliability of the unit may...

Page 227: ...tional refrigerant charge After vacuuming work exchange the vacuum pump with the refrigerant bomb and then start the additional charging work of refrigerant Calculating the amount of additional refrig...

Page 228: ...supply For indoor unit wires requirement please refer to indoor installation manual outdoor unit wires requirement is as below 1 Power supply wire Ourdoor unit model Phase and Frequency Volts ELB Wir...

Page 229: ...ent of power supply wire connection for indoor units please refer to relevant installation manual All indoor units of one refrigerant system must be supplied with one power supply Every indoor unit sh...

Page 230: ...e refer to the installation manual of indoor unit For outdoor unit connect the communication wire as following steps Unscrew and remove the service lid please refer to chart 30 Connect the communicati...

Page 231: ...in L link type 3 Up to one LWC LWCS can be connected in one indoor unit 4 Up to two LWC LWCS can be connected in one R C communication wiring 5 If a LWCS is connected in the R C communication wiring a...

Page 232: ...definition NSC Night mode when these two pins Dn and Dc are connected the unit will enter night mode it is main for decrease the noise level Optional FSC Forced shut off when these two pins Ds and Dc...

Page 233: ...nt settings for installation address setting procedure and outdoor control mode setting 1 6 1 Address Setting Procedure Before normal running ITEST is a must process for address setting when the unit...

Page 234: ...3 Press MODE button and you can see LED1 LED5 blinking CLoCK then press Up or DOWN button till you see LED1 LED5 blinking ConMS and press SET button to confirm the selection Chart1 42 4 Press MODE bu...

Page 235: ...se eight switches we can define the outdoor model Model DS1 DS2 DS3 DS4 DS5 DS6 DS7 DS8 Compressor model Driver model A 4HP OFF OFF OFF OFF OFF OFF OFF OFF ANB33 Hitachi X Y1 B 5HP OFF OFF OFF ON OFF...

Page 236: ...tion 2 1 HMI scope There are five 7 segment LED and five buttons in the main board Definitions for these parts as following 7 segment LED display Letter Display Letter Display Number Display A n 1 b o...

Page 237: ...t occurs 6 Force shut off without any fault 7 Diagnostic 8 Installation test 9 Lab test 10 System refrigerant charge test 11 Product line test 12 Product line test in heating mode is compressor operat...

Page 238: ...door unit s dry contact 28 Mode by first win indoor unit 29 Mode according by OAT 30 Mode according by master indoor unit 2 3 HMI initiation process After power on system enters to INIT process first...

Page 239: ...linking when unit in Norm OFF by OFF command Operate and display introduction 1 Press Mode button to entry the next level 2 Press Up or Down button LED 1 5 will scroll 3 Press Set button to confirm th...

Page 240: ...long press Return button for 5s 2 4 5 Clock Setting LED1 indicates the week day from 1 to 7 LED 2 3 indicates the hour from 00 to 23 LED 4 5 indicates the minute from 00 to 59 Operate steps 1 Press Se...

Page 241: ...blinking for HMI will enter master IDU selection step 5 Master IDU selection a Press Mode button to enter next level LED1 2 are blinking uA LED3 5 are blinking 101 b Press Up or Down button to let LED...

Page 242: ...here is some fault during ITEST process as follow the fault will indicated in HMI HMI display Full Description From iAPAF Auto physical address failure Master slave ODU iAPAo Auto physical address ove...

Page 243: ...o 9 c Press Set button to confirm the password d If the password is wrong LED1 LED5 will light you should redo 2 3 or you can press Return button to back to last level LTEST and LTEST symbol is invali...

Page 244: ...blinking when unit in PTEST cooling mode means the compressor operating speed LED1 LED5 blinking when unit in PTEST Heating mode means the compressor operating speed During PTEST operating all button...

Page 245: ...g manual 245 Part V Controller components 1 VRF CONTROL SYSTEM INTRODUCTION 246 2 LWC LOCAL WIRED CONTROLLER INTRODUCTION 247 3 LWCS LOCAL WIRED CONTROLLER SIMPLIFIED 278 4 IR RC INFRA RED REMOTE CONT...

Page 246: ...ion wires in VRF control system one is Main bus and the other is Local bus Main bus is the communication wire between the ODU and IDU Local bus is the communication wire between the IDU and local wire...

Page 247: ...g manual 247 2 LWC Local Wired Controller introduction Control Mode Centralized control Number of indoor units which can be controlled 1 16 group up to 16 units Use limitations The wiring length limit...

Page 248: ...RF system s IDU and HRV It is a bidirectional non polarity system powered from indoor units Up to 2 remote controllers in one R C wiring one is master one is slave It is realized by one dip switch hid...

Page 249: ...The PC board is mounted in the upper part of the remote controller be careful not to damage the board with the minus screwdriver 2 2 2 Wiring the indoor unit and LWC Connect terminal P1 and P2 on the...

Page 250: ...f LWC to the wall by three screws For exposed mounting fasten with the two included wood screw and plugs Note Choose the flattest place for the mounting surface Be careful not to distort the shape of...

Page 251: ...P3 P4 P5 and two jumpers JP1 JP2 Factory setting of dip switch Factory setting of jumpers JP1 Open JP2 Shorted Change the setting of DIP switch ON OFF P1 Technician mode Normal mode P2 Enable I feel...

Page 252: ...ition Note Only when exit I feel function OFF position I feel function is act For details please find service manual of LWC Limit for I feel function If set I feel function by LWC it will ignore the I...

Page 253: ...following list Button Name Function LCD Display ON Turn on all groups Bars below the group s number are lighting one after the other OFF Turn off all groups Bars below the group s number are cleared o...

Page 254: ...tion interface 9 HOLIDAY Set or clean holiday setting Icon is lit when holiday is set Icon is cleared when holiday is cancelled 10 COMFORT Press it to enter to vertical louver horizontal louver sleep...

Page 255: ...M There is a different function for short press and long presses to this button for details please refer to Weekly timer Only after exiting PROGRAM other buttons as ON OFF MODE FAN VENTILATION can be...

Page 256: ...L 1 2 16 is scrolled quickly When group is selected group s number will blink max 10s User address from 1 to 16 is displayed only when there have 16 groups in the R C wiring If there are only 3 groups...

Page 257: ...R 30 C 29 C 17 C 16 C Lo C Note 1 When in ON state SPT can be set if selecting ALL only when all group in ON state SPT can be set 2 Normally SPT range is 16 30 if user set temperature exceeds this ran...

Page 258: ...single group If all units of the group have the function when entering Comfort setting icon for the relevant function should be ON if not all units have the function icon for the relevant function is...

Page 259: ...electing ALL only when all groups in ON state VENTILATION button is valid 2 When ALL is selected if groups do not share the same Fresh Air setting then at first no icon will be displayed After pressin...

Page 260: ...opied with the selected Pn is ON Note Once a time point is set in the first action the other action in the same day can not set the same time point for the same LWC 7 Or Ok is pressed Move to Timers O...

Page 261: ...ave Pn After going out of programming the timer actions will automatically be arranged by chronologic hour order Pn and active action are displayed if the program has copied to the selected group How...

Page 262: ...Day of week is blinking 2 or is pressed Select RTC setting column Day Of Work Hour Minutes Selected column is blinking 3 or is pressed Scroll up or scroll down column values Day Of Work Mon Tue Wed Th...

Page 263: ...r Sleep ION and ESF If all groups share the same selected feature setting the under line of relevant icon will be lit press button will start the setting with current state If not all groups share the...

Page 264: ...tting mode to use these buttons 5 Protections phenomenon of system If you find no wind blow from indoor unit and code bb db FD FC is shown below the clock of LWC and LED of indoor unit and LWC are bli...

Page 265: ...Remove the back cover of LWC firstly then set DIP switch P1 Mode to ON position LCD display as Browse IDU and ODU message Operation instructions 1 Press PROGRAM button to enter message browser LCD di...

Page 266: ...sage Explanation 1 Out door message list Message code Name Actual Content Display content Unit Resolut ion 1 ODU model 11 2 14 0 15 5 22 4 28 0 33 6 0x00 0x01 0x02 0x03 0x04 0x05 kW 2 Physical ad 241...

Page 267: ...30 100 1 08 RAT 30 100 30 100 1 09 SPT 16 30 16 30 1 10 Reserved 00 00 Read Write user address User address introduction Normally every indoor unit should have one physical address and one user addre...

Page 268: ...without user address is selected 000 is display instead of real time the first bit is X of user address the other bits are YY of user address b If unit with user address is selected underline of group...

Page 269: ...object i If outdoor unit is selected browse fault code by press or button fault code will be displayed instead of real time Press button to exit to last level ii If YY of user address of group is sel...

Page 270: ...ta Use new I feel data Existing I feel setting No I feel set Use new I feel data Use new I feel data Use new I feel data Note Please talk with the user about this function and take care about this set...

Page 271: ...splay before enter I feel setting 2 4 3 Master Slave LWC setting 1 When two local wired controllers are installed in one R C wiring one should be set as master the other should be slave it is set by o...

Page 272: ...e indoor unit has HRV function but LWC select Fresh air LWC will indicate the fault by blinking LED but can work as normal Only when all units of the same group have fresh air function VENTILATION set...

Page 273: ...ion 1 ODU model 11 2 14 0 15 5 22 4 28 0 33 6 0x00 0x01 0x02 0x03 0x04 0x05 kW 2 Physical ad 241 250 F1 FA 3 Inverter Comp speed 1 0 130 0 130 Rps 1 4 Inverter Comp speed 2 0 130 0 130 Rps 1 5 Invert...

Page 274: ...03 IFAN speed 0 1600 0 1600 Rpm 10 04 EEV 05 ICIT 30 100 30 100 1 06 ICMT 30 100 30 100 1 07 ICOT 30 100 30 100 1 08 RAT 30 100 30 100 1 09 SPT 16 30 16 30 1 10 Reserved 00 00 IDU ODU malfunction diag...

Page 275: ...check or TM function to find which fault cause this result For the fault code definition please find section 9 in this chapter 2 LED is OFF when in is blinking However LED is blinking when in is ligh...

Page 276: ...r ALL which the fault come from is blinking 2 For level 11 fault Only is lighting and the latest fault code is displayed instead of time of timer and all icons are blinking After the latest fault is s...

Page 277: ...A U5 Total number of units in same R C wiring is more than 16 U6 LWC LWCS SC SPI fault U7 LWC LWCS No communication U8 Number of PA of master ODU 1 or PA FE Only TM is active LED blinks Only in is ON...

Page 278: ...ng manual 278 3 LWCS Local Wired Controller Simplified Control Mode Centralized control Number of indoor units which can be controlled 1 16 group up to 16 units Use limitations The wiring length limit...

Page 279: ...l type of VRF system s IDU It is a bidirectional non polarity system powered from indoor units Up to 2 remote controllers in one R C wiring one is master one is slave It is realized by one dip switch...

Page 280: ...ots between the upper and the lower part of LWCS Warning The PC board is mounted in the upper part of the remote controller be careful not to damage the board with the minus screwdriver 3 2 2 Wiring t...

Page 281: ...fasten with the two included tapping screw and plugs Caution Choose the flattest place for the mounting surface Be careful not to distort the shape of the lower part by over tightening the mounting sc...

Page 282: ...s to be shorted for slave LWCS JP2 has to be opened If need set I feel function Set Dip switch 2 to ON position Caution Limit for I feel function If set I feel function by LWCS it will ignore the I fe...

Page 283: ...Engineering manual 283 Chart 3 4...

Page 284: ...and SPT will be on If there is HRV or Fresh Air or louver setting HRV or louver icon will be on 2 off Turn off unit Operation LED will be off mode and fan speed and SPT and louver and HRV icon will be...

Page 285: ...s available are listed below ON OFF setting Air conditioner running mode setting Cool Heat Only in Heat Pump Fan Dry Auto Only in HRS is scrolled Set point temperature SPT Room temperature can be set...

Page 286: ...OFF LED blinks when a fault happens Fault Code Indicates default in the place SPT Filter clean indication Filter should be cleaned Filter clean reset Filter control restart for another cycle Reset fun...

Page 287: ...Lo C instead of the SPT for 3s After 3 seconds the high low limit temperature will be set and shown Fan speed setting Step Action Description Display 1 FAN is pressed when single group is selected Se...

Page 288: ...shown on LCD all the time it means there exists system problem please consult your installer Buttons can t operate Please check whether icon is shown by LWCS it means the system is controlled by a hi...

Page 289: ...n button to confirm IDU or ODU then RM icon or OAT icon will be on from blink 4 If ODU is confirmed press Temp button to browse master ODU slave 1 ODU slave 2 ODU slave 3 ODU Then 0x01 0x02 0x03 0x04...

Page 290: ...The 0x01 will displayed instead of SPT press Temp Temp button will scroll master ODU slave 1 ODU slave 2 ODU slave 3 ODU Then 0x01 0x02 0x03 0x04 will be blinking instead of SPT press Off button to e...

Page 291: ...instead of SPT in TM 36 degree is sent out if sensor is open Lo is displayed instead of SPT in TM 6 degree is sent out When there is master slave conflict fault I feel will be off work 3 4 2 Easy chec...

Page 292: ...s IDU OAT means master ODU 3 Press ON button to confirm the select object If OAT is confirmed 0x01 will be blinking in the place of SPT then press or button to scroll master ODU or slave 1 ODU or slav...

Page 293: ...1 they are able to control all series of VRF indoor units and have the advantage of beautiful appearance delicacy configuration and strong function External appearance Model name RC3i 1 RC7i 1 Number...

Page 294: ...Engineering manual 294 4 1 Appearance RC3i 1 A Q C E F G I D H J K L M N O P B...

Page 295: ...Engineering manual 295 A B C G D F E H I J K L M N O P Q RC7i 1...

Page 296: ...tion Displayed when data trasmitted Or remote control unit lock Timers Clock Displayed when the timer on is set and activated Displayed when the timer off is set and activated Fresh air Ionize and ESF...

Page 297: ...G BUTTON Push button to activate the supply air flap to auto swing L HORIZONTAL SWING BUTTON Push button to activate the horizontal Air Flow to auto swing M SET BUTTON For detail see HOW TO SET THE PR...

Page 298: ...move the batteries Remove the lid in the rear part Press the battery toward the negative end and lift it out by its positive end as shown Remove the other battery in the same way After batteries chang...

Page 299: ...he location next to you Therefore in using this function the remote control should always be aimed without obstruction at the air conditioner Note After set I Feel function the remote control unit sen...

Page 300: ...Engineering manual 300 Part VI IDU and ODU troubleshooting 1 FAULT AND PROTECTION CODE LIST 301 2 INDOOR UNIT TROUBLESHOOTING 303 3 OUTDOOR UNITS TROUBLESHOOTING 324...

Page 301: ...IDU 19 b5 For future TBD IDU 20 b6 ICMT sensor is disconnected 14 IDU 21 b7 For future TBD IDU 22 b8 ICOT sensor is fault 14 IDU 23 b9 For future TBD IDU 24 bA IDU EEPROM Fault 1 14 IDU 25 bb IDU Hot...

Page 302: ...2 13 ODU 60 F1 OAT sensor is fault 14 ODU 61 F2 CDT sensor is fault 13 ODU 62 F3 OCIT sensor is fault 14 ODU 63 F4 CDT sensor2 is fault 13 ODU 64 F5 OCMT sensor is fault 14 ODU 65 F6 SCIT sensor is fa...

Page 303: ...ndoor unit change mode Unit electrical board fault Diagnostic Yes Stop using the indoor unit or change the unit s mode Whether the indoor unit s mode is conflicted with Master indoor unit s mode Check...

Page 304: ...Diagnostic No Yes Yes Connect water pump and restart Change float switch Check whether drain pipe is blocked or installed incorrect Connect well the wire and restart again Change this indoor unit s e...

Page 305: ...ault Unit electrical board abnormal Diagnostic Yes No No Yes Normal Abnormal Does motor wire connect well to the electrical board Change a new electrical board and restart the unit Is the indoor fan b...

Page 306: ...manual 306 Indoor unit IDU EEPROM Fault 2 IDU EEPROM Fault 1 Remote controller display A4 bA Possible reason IDU EEPROM parameter is fault Unit electrical board is abnormal Diagnostic Change an elect...

Page 307: ...normal Diagnostic No Yes Yes Yes No No No Yes Is main bus wire connected well and correct Did somebody use EEPROM and change parameter Does the outdoor unit get power Is local bus wire connected well...

Page 308: ...gineering manual 308 Indoor unit IDU SPI communication fault Remote controller display A6 Possible reason Communication soft is fault Unit electrical board is abnormal Diagnostic Change electrical boa...

Page 309: ...anagement fault Remote controller display A7 A8 Possible reason Local bus communication wire have a short or open circuit Unit electrical board is abnormal Diagnostic Whether Local bus communication w...

Page 310: ...destroyed Diagnostic Yes Yes No Does main bus wire disconnect before doing installation test Do installation test and check whether A9 is reported still Yes Add a new indoor unit but did not do insta...

Page 311: ...al 311 Indoor unit Indoor unit no user address Remote controller display AA Possible reason The unit is a new indoor unit The unit is from other system Diagnostic Use LWC to assign the user address to...

Page 312: ...oor unit s EEPROM is fault Diagnostic Yes No Do installation test and check whether all indoor units have this fault Have changed a new outdoor electrical board but did not do installation test Yes Do...

Page 313: ...Possible reason Add a new indoor unit Indoor unit power failure Indoor unit s electrical board is abnormal Diagnostic Yes Yes Add new indoor unit Did some indoor unit power failure No No Do installat...

Page 314: ...eering manual 314 Indoor unit Indoor unit power up register failure Remote controller display Ad Possible reason Indoor unit s electrical board is abnormal Diagnostic Change indoor unit s electrical b...

Page 315: ...trical expansion valve abnormal Diagnostic Yes No Yes No Check whether indoor middle coil temperature sensor is failure Does indoor unit exit this fault after a few minutes Yes No Check whether expans...

Page 316: ...Possible reason Room ambient temperature sensor is destroyed Indoor electrical board is destroyed Diagnostic Abnormal Normal Is the resistance of the sensor normal Yes No Does the sensor connect to t...

Page 317: ...b4 Possible reason Coil inlet temperature sensor is destroyed Indoor electrical board is destroyed Diagnostic Abnormal Normal Is the resistance of the sensor normal Yes No Does the sensor connect to t...

Page 318: ...b6 Possible reason Coil middle temperature sensor is destroyed Indoor electrical board is destroyed Diagnostic Abnormal Normal Is the resistance of the sensor normal Yes No Does the sensor connect to...

Page 319: ...b8 Possible reason Coil outlet temperature sensor is destroyed Indoor electrical board is destroyed Diagnostic Abnormal Normal Is the resistance of the sensor normal Yes No Does the sensor connect to...

Page 320: ...atic pressure select problem for duct type Refrigerant absent Diagnostic No No Yes Yes No Does operation mode been changed to heat mode and bb disappear soon Check whether the static pressure design i...

Page 321: ...ote controller display bC Possible reason main bus communication wire have a short or open circuit Indoor unit electrical board is abnormal Diagnostic Whether main bus communication wire is shorted or...

Page 322: ...o Yes Check whether indoor coil temperature sensor is normal Check whether indoor fan work normally Yes Is it time to clean the filter Check whether refrigerant quantity is too much more Clean the fil...

Page 323: ...Indoor one way valve leakage Indoor coil inlet or outlet temperature sensor failure Diagnostic Yes No No No No Yes Yes Check whether indoor one way valve leak or not Check whether indoor EEV itself l...

Page 324: ...ctrical board abnormal liquid solenoid valve abnormal Diagnostic Yes No Yes No No No Is liquid solenoid valve connecting well Is discharge temperature sensor connecting well Yes Yes Check whether the...

Page 325: ...iagnostic No Yes Abnormal No No Yes Yes Check whether outdoor fan works smooth without any damage Is outdoor electrical CN14 connected with higher pressure sensor Is outdoor coil blocked or too dirty...

Page 326: ...s Yes No No Yes Check whether pressure switch pin heater is shorted Check whether refrigerant quantity is normal Check whether outdoor fan can work normally Yes No Yes Take out pressure switch pin hea...

Page 327: ...tdoor electrical board abnormal Diagnostic Abnormal No Yes Yes Normal No Check whether low pressure decrease to 0 0kg cm when compressor stop Is outdoor electrical CN15 connected with low pressure sen...

Page 328: ...o Yes Check whether pressure switch pin heater is shorted Check whether refrigerant quantity is normal Check whether outdoor fan can work normally Yes No Yes Take out pressure switch pin heater and ch...

Page 329: ...normal OFAN is blocked OFAN motor wire is not connected well ODU PCB is abnormal Diagnostic No No Connect the wire and run the unit again Ask service to fix the outdoor fan and run the unit again Chan...

Page 330: ...reason Inverter discharge temperature sensor is destroyed Indoor electrical board is destroyed Diagnostic Abnormal Normal Take out the sensor and measure the resist value Yes No Does the sensor conne...

Page 331: ...bad connection Outdoor electrical board fault Diagnostic No Yes No Check whether there is overcharged in the system Yes No Check whether high pressure sensor wire is connected on electrical board CN14...

Page 332: ...nection Outdoor electrical board fault Diagnostic Yes No Yes No Check whether there is leakage for refrigerant Yes No Check whether high pressure sensor wire is connected on electrical board CN15 Chec...

Page 333: ...ew indoor unit Outdoor electrical board fault Diagnostic Yes No Yes Add a new indoor unit Yes Check whether indoor unit or outdoor units are power on Check whether main bus wire is bad connection Conn...

Page 334: ...Engineering manual 334 Outdoor unit Outdoor SPI communication fault Remote controller display dC Possible reason Outdoor electrical board fault Diagnostic Change a new outdoor electrical board...

Page 335: ...oor unit No PA UA matching table Remote controller display dd Possible reason Outdoor electrical board need do ITEST Outdoor electrical board is fault Diagnostic Whether system has done ITEST Do ITEST...

Page 336: ...nt fault Remote controller display dE Possible reason Main communication wire is shorted or open Outdoor electrical board is fault Diagnostic No Whether main communication wire is shorted or open Reco...

Page 337: ...Outdoor unit Outdoor unit EEPROM fault 2 Remote controller display dF Possible reason Outdoor unit s EEPROM 2 parameter has been destroyed Outdoor electrical board is fault Diagnostic Change outdoor u...

Page 338: ...on Main bus wire is short Use two pc monitor for one system Outdoor electrical board fault Diagnostic No Yes Yes No Check whether all main bus wire is connected well Check whether there are two pc too...

Page 339: ...st Power on Change a new outdoor electrical board Outdoor EEPROM is fault Outdoor Electrical board fault Diagnostic No Yes Yes Is it a new unit and first power on Did you change a new outdoor electric...

Page 340: ...l 340 Outdoor unit Compressor driver problem Remote controller display E3 E4 E5 E6 E7 E8 E9 EA Eb EC Ed Possible reason Compressor driver has some faults Diagnostic Some important faults refer to the...

Page 341: ...E4 is reported right now No Change a new compressor driver Stop using unit Clean the filter and coil then run the unit again Do not use EEPROM or ask service engineer for help Ask service engineer fo...

Page 342: ...es Stop using unit Fix outdoor fan and run the unit again Ask service engineer to fix it Ask service engineer to make sure whether the compressor driver is in problem Outdoor unit Hear sink overheatin...

Page 343: ...re bad connection Communication wire destroyed Outdoor electrical board fault Diagnostic Yes No No Yes Check whether this wire is destroyed Check whether communication wire is connecting to CN10 and C...

Page 344: ...ature is out of operation range Refrigerant quantity is more than needed Compressor driver is fault Diagnostic Yes No No Yes Check whether the refrigerant quantity is too more Is ambient temperature o...

Page 345: ...s fault Outdoor electrical board is fault Diagnostic Yes Yes Yes No Check whether dip switch Ds5 Ds8 is correct Check whether dip switch Ds1 Ds4 is correct No Check whether dip switch Ds9 Ds12 is corr...

Page 346: ...n Outdoor ambient temperature sensor is destroyed Outdoor electrical board is fault Diagnostic Abnormal Normal Take out the sensor and measure the resist value Yes No Does the sensor connect to the el...

Page 347: ...eason Compressor discharge temperature sensor is destroyed Outdoor electrical board is fault Diagnostic Abnormal Normal Take out the sensor and measure the resistance value Yes No Does the sensor conn...

Page 348: ...n Outdoor coil inlet temperature sensor is fault Outdoor electrical board is fault Diagnostic Abnormal Normal Take out the sensor and measure the resistance value Yes No Does the sensor connect to the...

Page 349: ...reason Inverter compressor discharge sensor is fault Outdoor electrical board is fault Diagnostic Abnormal Normal Take out the sensor and measure the resistance value Yes No Does the sensor connect t...

Page 350: ...n Outdoor coil middle temperature sensor is destroyed Outdoor electrical board is fault Diagnostic Abnormal Normal Take out the sensor and measure the resist value Yes No Does the sensor connect to th...

Page 351: ...eason Sub cooling inlet temperature sensor is destroyed Outdoor electrical board is fault Diagnostic Abnormal Normal Take out the sensor and measure the resistance value Yes No Does the sensor connect...

Page 352: ...n Outdoor coil outlet temperature sensor is destroyed Outdoor electrical board is fault Diagnostic Abnormal Normal Take out the sensor and measure the resist value Yes No Does the sensor connect to th...

Page 353: ...eason Sub cooling outlet temperature sensor is destroyed Outdoor electrical board is fault Diagnostic Abnormal Normal Take out the sensor and measure the resistance value Yes No Does the sensor connec...

Page 354: ...reason Compressor suction temperature sensor is fault Outdoor electrical board is fault Diagnostic Abnormal Normal Take out the sensor and measure the resistance value Yes No Does the sensor connect...

Page 355: ...manual 355 Outdoor unit ODU EEPROM Fault 1 Remote controller display Fb Possible reason ODU EEPROM fault 1 parameter has been destroyed Outdoor electrical board is fault Diagnostic Change outdoor elec...

Page 356: ...r coil is covered with ice Refrigerant leakage Outdoor electrical board is fault Diagnostic No Yes Check whether system enters deice is very often Yes No Is outdoor coil covered with ice before Do cha...

Page 357: ...splay Fd Possible reason Too many oil leave compressor Outdoor electrical board is fault Diagnostic No Yes Does oil return exit 4 minutes later and enter normal operation Yes No Does compressor work a...

Page 358: ...fault Remote controller display FE Possible reason Main bus communication wire is shorted or open Outdoor electrical board is fault Diagnostic Whether main bus communication wire is shorted or open Re...

Page 359: ...ble reason Use two pc monitor for one system Outdoor electrical board is fault Diagnostic No Yes Do installation test and check whether system enter normal Yes No Are there two pc monitor in one syste...

Page 360: ...nge outdoor electrical board Adding some indoor units and the total IDU capacity should be higher than 50 ODU normal capacity Decreasing some indoor units and the total IDU capacity should be lower th...

Page 361: ...Outdoor unit Compressor driver fault Remote controller display HA Hb HC Hd HE HF L1 L2 L3 L4 L5 L6 L7 L8 L9 Possible reason Compressor driver have some faults Diagnostic Some important faults refer to...

Page 362: ...e problem Remote controller display L6 Possible reason The inverter compressor wire is not connected well The inverter compressor is bad Diagnostic Whether inverter compressor wire is connected well C...

Page 363: ...gineering manual 363 Outdoor unit Outdoor unit MAC address failure Remote controller display LB Possible reason Outdoor unit electrical board is fault Diagnostic Change the outdoor unit electrical boa...

Page 364: ...Engineering manual 364 Part VII Appendix 1 R410A SATURATION TABLE GAUGE PRESSURE 365 2 PC MONITOR OPERATION INSTRUCTION 366...

Page 365: ...10 472 9 21 1382 7 52 3102 7 40 75 2 9 492 9 22 1423 7 53 3175 7 39 83 3 8 513 4 23 1465 6 54 3250 38 91 7 7 534 5 24 1508 3 55 3325 5 37 100 3 6 556 2 25 1551 9 56 3402 3 36 109 3 5 578 3 26 1596 3 5...

Page 366: ...etter recommended Memory 256 MB or more recommended Hard disk 100 MB or more free disk space Serial port COM1 At least one RS 232C port should be setup in your computer Display SVGA 1024 X 768 pixel o...

Page 367: ...al 367 Click Next and select the destination folder If you would like to install it into different folder please click Browse and select the folder you want Click Next to continue install Cancel to ex...

Page 368: ...ngineering manual 368 Wait until install copy all files finish then click Finish to end installation If install successful a shortcut icon is show in your computer s desktop and also show in start men...

Page 369: ...menu and select Program VRF Service Tool Uninstall VRF Service Tool a uninstall confirm dialog is show Click Next to continue and Cancel if you do not want to remove it Wait until uninstall program f...

Page 370: ...tioner system The first way is to connect to VRF system home bus main bus with transmit board communication adaptor and the second way is PC directly connected to MCU of outdoor unit with UART port 2...

Page 371: ...status Initial Monitor If you want to record the monitor data in your PC please cancel the checkbox before DON T RECORD DATA and then the NAME and SELECT PATH button are changed to be editable here y...

Page 372: ...Engineering manual 372...

Page 373: ...indoor unit status and the bottom half shows the outdoor unit status the buttons of the left tool bar are define as below Click right button of mouse on unit item a menu is pop up shows the operations...

Page 374: ...for R D engineers Fault Protection log show the fault or protection log detail of the select unit And also click right button of mouse on outdoor unit item a menu is pop up shows the operations of the...

Page 375: ...Engineering manual 375 Monitoring as graph mode Click right button of mouse a graph select dialog is shown to set which lines are visible color and line width...

Page 376: ...Engineering manual 376 Click the value area of axis a dialog is shown to set the range of axis...

Page 377: ...fault protection log and query Select the menu Fault protection log of indoor unit operation menu a dialog is show as like below here list all the fault or protection s happen time level code name you...

Page 378: ...and query Select the menu Fault protection log of outdoor unit operation menu a dialog is show as like below here list all the fault or protection s happen time level code name you can query the curre...

Page 379: ...up in your computer and it can work well with you computer then make sure the resolution of your display device is 1024X768 or above 2 Why can t I record any status data from VRF air conditioner syste...

Page 380: ...8 mai 1945 SaintQuentin en Yvelines 78284 GUYANCOURT France Tel 33 0 01 39 44 78 00 FAX 33 0 01 39 44 65 17 Ref EDM Mvi A 1 GB As part of our ongoing product improvement our products are subject to c...

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