MegaLife ARV Series Service Manual
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MegaLife ARV Series Service Manual

6 all dc inverter t1 outdoor unit
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ARV OUTDOOR UNIT –
MegaLife
ARV 6 ALL DC INVERTER T1 50&60HZ
Service Manual
Service Manual
ARV Outdoor Unit
ARV 6 All DC Inverter T1
ARV-H250/SR1MV
ARV-H280/SR1MV
ARV-H330/SR1MV
ARV-H400/SR1MV
ARV-H450/SR1MV
ARV-H500/SR1MV
ARV-H560/SR1MV
ARV-H610/SR1MV

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  • Page 1 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Service Manual ARV Outdoor Unit ARV 6 All DC Inverter T1 ARV-H250/SR1MV ARV-H280/SR1MV ARV-H330/SR1MV ARV-H400/SR1MV ARV-H450/SR1MV ARV-H500/SR1MV ARV-H560/SR1MV ARV-H610/SR1MV...

  • Page 2: Table Of Contents

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2018.8 CONTENT Part1 Refrigerant Circuit ................. 4 1. Cooling Operation ..................... 6 2. Heating Operation ..................... 8 3. Component introduce ....................11 Part2 Installation ................... 13 1.
  • Page 3 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Part3 Commissioning ................50 1. Preparatory work ..................... 51 2. Master unit setting ....................54 3. Commissioning ......................54 4. Parameter Setting (Main PCB) ................63 5.

  • Page 4: Part1 Refrigerant Circuit

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Part1 Refrigerant Circuit...
  • Page 5 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. Cooling Operation ........Error! Bookmark not defined. 2. Heating Operation........Error! Bookmark not defined. 3. Component introduce ....... Error! Bookmark not defined.

  • Page 6: Cooling Operation

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. Cooling Operation ARV-H250/SR1MV, ARV-H280/SR1MV, ARV-H330/SR1MV ARV-H400/SR1MV, ARV-H450/SR1MV Cooling G as f or hi gh t em p. & hi gh pressure HP Sensor Li qui d f or hi gh t em p. & hi gh pressure Low t em p.
  • Page 7 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual ARV-H500/SR1MV, ARV-H560/SR1MV, ARV-H610/SR1MV Cooling HP Sensor G as f or hi gh t em p. & hi gh pressure Li qui d f or hi gh t em p. & hi gh pressure Low t em p.

  • Page 8: Heating Operation

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Condenser outlet temperature Defrost temperature def1 Discharge of compressor 1# Oil temperature Liquid piping temperature of ODU Discharge of compressor 2# 2. Heating Operation ARV-H250/SR1MV, ARV-H280/SR1MV, ARV-H330/SR1MVARV-H400/SR1MV, ARV-H450/SR1MV G a s fo r h i g h te m p .
  • Page 9 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Outlet temperature of PMV3 Outlet temperature of sub-cooler def2 Environment temperature Gas-liquid separator outlet/Suction temperature Condenser outlet temperature Defrost temperature def1 Discharge of compressor 1# Oil temperature...
  • Page 10 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Component Full name (Sensors) Outlet temperature of PMV3 Outlet temperature of sub-cooler def2 Environment temperature Gas-liquid separator outlet/Suction temperature Condenser outlet temperature Defrost temperature def1 Discharge of compressor 1#...

  • Page 11: Component Introduce

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ· 3. Component introduce Component name Main function DC inverter Compressor : DC Inverter Compressor work frequency range is 20~120 Hz. High Pressure Switch: HP Switch When refrigerant high pressure value over the target pressure...
  • Page 12 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ· EXV: throttling and reducing refrigerant pressure Liquid-gas separator: To separate gas refrigerant and liquid refrigerant Low Pressure Sensor: LP Sensor Detecting refrigerant system low pressure value...

  • Page 13: Part2 Installation

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Part2 Installation 1. Preface of installation ....... Error! Bookmark not defined. 2. Installation of Outdoor Unit ...... Error! Bookmark not defined. 3. Pipes Laying ..........Error! Bookmark not defined.

  • Page 14: Preface Of Installation

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. Preface of installation C onfirm proje c t Check Dra wing Insta ll outdoor unit Insta ll indoor unit Insta ll dra ina ge pipe...

  • Page 15: Installation Of Outdoor Unit

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. Installation of Outdoor Unit 2.1 Installation Location and Foundation Ensure that the outdoor unit is installed in a dry, well-ventilated place. 2. Ensure that the...
  • Page 16 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2.2 Pre tools Tape measure Spanner Electric hammer Nut gasket Screw driver Level meter 2.3 Maintenance and Ventilation Space 2.3.1 Ensure necessary installation and maintenance space.
  • Page 17 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Front Front Front 2.3.2 If there are two rows of outdoor units, we suggest face to face installation for easy maintenance, and avoid air short circuit.
  • Page 18 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2.4 Installation of Outdoor Unit 2.4.1 Tighten outdoor unit on mounting support with bolt and nut, and keep it horizontal. The bolt should have a proper length of 20mm more than base surface.
  • Page 19 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Ma ster unit Sla ve unit 16HP 12HP Liquid Side Ga s Side Fi rst Bra n c h Pi p e 2.4.3 The installation space for a fixed bolt, please refer to the following drawing.
  • Page 20 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Channel Steel Concrete Space for discharging the condensate water 2.4.6 Don’t use four-square base to support outdoor unit. 2.4.7 Rubber anti-vibration pads are necessary to avoid vibration.

  • Page 21: Pipes Laying

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3. Pipes Laying 3.1 Pre tools Tube expander Spanner Expander Screw driver Electric hammer Pipe bender Mounting bracket hanger Hoop Expansive bolt...
  • Page 22 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3.2 Selection of copper pipe 3.2.1 Please use seamless red copper pipe. 3.2.2 Specification of refrigerant pipe should be selected according to unit requirement ※ Thickness of copper tube...
  • Page 23 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Φ 41.3 1.671 0.598 Φ 44.5 1.823 0.554 3.2.3 If pipes will be stored for a long time, the pipes should be charged into 0.2~0.5MPa N2 and the nozzle should be sealed by welding.
  • Page 24 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3.3 Accessory bag Accessory bag in outdoor unit 3.4 Bending of copper tube 3.4.1 Do not right angle bending many times in a short distance Larger flow resistance of refrigerant 3.4.2...
  • Page 25 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3.5 Flaring of copper tube 3.5.1 The burr of the copper tube should be removed before the copper tube is expanded 3.5.2 It is required to expand the inside diameter at connection area with Tube expander...
  • Page 26 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1~1.5m Flare pipe with Expander as per the dimensions of flaring opening in the following table. Tightening Machining Shape of Diameter of pipe Apply oil torque...
  • Page 27 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3.6 Separation Tube (branch joint) 3.6.1 The branch joint must be installed horizontally and the lean angel should be ≤ 15° to avoid refrigerant distribution unbalance.
  • Page 28 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3.7 Oil Trap When the Vertical height between indoor and outdoor units more than 8 or 10 meters, ensure the Refrigeration oil return to compressor smoothly, the...
  • Page 29 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual inch Φ 19.05 ≥ 31 ≥ 105 Φ 22.22 ≥ 31 ≥ 150 Φ 25.4 ≥ 45 ≥ 150 Φ 28.6 ≥ 45 ≥ 150 Φ 34.9 11/8 ≥...

  • Page 30: Welding

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 4. Welding 4.1 Pre tools Nitrogen Nitrogen Nitrogen cylinder pressure regulating valve pressure gauge Welding device Connection hose...
  • Page 31 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 4.2 Flushing Before connection use nitrogen（The pressure of the nitrogen is 0.5 MPa） or air to remove dust and moisture inside pipe. 0. 5M p a...
  • Page 32 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 0. 02M p a Welding device Pressure regula ting va lve copper pipe Sea ling belt 4.3.2 It’s necessary to fill nitrogen to prevent oxidation layer (Cu...

  • Page 33: Gas Tightness Test

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5. Gas Tightness Test 5.1 Purpose and Steps To confirm whether there is leakage in pipe by using nitrogen, and the steps are as follows 1. A fte r th e c o m p l e ti o n o f w e l d i n g , C o n n e c t th e nitrogen cylinder 、 nitrogen regula te va lve a n d nitrogen pressure ga uge 2.
  • Page 34 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual After 24 hours, if the pressure is 3.95MPa and temperature is 20℃, it is deemed qualified. ② Check leakage point. If there is pressure drop but leakage point can’t be found in pressure test: 1.
  • Page 35 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5.3 Caution There is no power for indoor unit’s EXV before commissioning, so the EXV is closed, the nitrogen gas unable to flow from A to B or B to A So when charging the nitrogen gas, it should be charged from the both (liquid &...
  • Page 36 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5.4 Schematic diagram Nitrogen filling mode 1: Connect to gas and liquid cut-off valve Pressure regula ting va lve 0. 3/1. 5/ 4. 0 M p a...
  • Page 37 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Nitrogen filling mode 2: Connect to main gas & liquid piping Pressure regula ting va lve 0. 3/1. 5/ 4. 0 M p a Nitrogen pressure...

  • Page 38: Vacuum Drying

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Pressure regula ting va lve 0. 3/1. 5/ 4. 0 M p a Nitrogen pressure ga uge 1# cut-off va lve Nitrogen pressure ga uge 2# 6.
  • Page 39 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Water’s boiling point Pressure Vacuum degree (mmHg) (mmHg) (℃) -705 -724 26.7 -735 24.4 -737 22.2 -740 20.6 -742 17.8 -745 15.0 -747 11.7 -750 -752 -755 Example: When the ambient temperature is 7.2℃, vacuuming can be carried out under...
  • Page 40 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6.3 Schematic diagram Gas and liquid stop valve must be closed, 1~3 valves should be opened Vacuum pump with one-way valve to prevent pump oil from flowing backward...
  • Page 41 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6.5 Vacuum drying Connect the pressure gauge to the infusing mouth of gas and liquid pipe ↓ While the vacuum gauge pressure is less than -100.7Kpa,perform the vacuum drying for more than 1 hour and closed the valve 2 ↓...

  • Page 42: Insulation

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 7. Insulation 7.1 Purpose of Insulation  Prevent condensate water adhere to the gas pipe  Protect people from hurt of high temp.  Avoid energy loss 7.2 Pre tools...
  • Page 43 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 7.3.2 The insulation work must be done to every part of refrigerant pipes 7.3.3 Insulation material Pipe diameter Thickness Φ6.4~15.9mm ≥15mm Φ15.9~38.1mm ≥20mm...
  • Page 44 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Φ38.1~54.1mm ≥25mm 7.3.4 Thermal insulation wrapping of pipe Thermal insulation materials should be used for drainage pipe and refrigerant pipe to prevent condensation or water leakage.

  • Page 45: Additional Refrigerant

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 8. Additional refrigerant 8.1 Calculate refrigerant charge volume Calculate the required refrigerant volume by the length of liquid pipe → recharge refrigerant. Pipe size of liquid side (mm) Ф25.4...
  • Page 46 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 8.3 Schematic diagram 1. 1~4 # valves all are opened 2. 1#, 3#, 4# valves are opened, 2# valve are closed 1~4: va lves Va cuum...

  • Page 47: Electrical Wiring

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3. Use electronic scale or fluid infusion apparatus to weigh the recharged refrigerant volume. 4. Use soft pipe to connect refrigerant cylinder, pressure gauge, and examine valve of outdoor unit.
  • Page 48 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Item power leakage current ground Power breaker line supply Operate time wire(mm Unit Type ARV-H250/SR 30mA,＜0.1 sec. ARV-H280/SR 30mA,＜0.1 sec. ARV-H330/SR 30mA,＜0.1 sec. ARV-H400/SR 380~415V 30mA,＜0.1 sec.
  • Page 49 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Use 2-Core shielded wire as sighal wire 9.3 Wiring 9.3.1 Open electric controlled box cover of indoor unit, wire according to electrical schematic diagram on electric controlled box cover, firmly press connecting wire on connecting terminal without loosening, ground wire must be connected at designated position.

  • Page 50: Part3 Commissioning

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Part3 Commissioning 1. Preparatory work ........Error! Bookmark not defined. 2. Master unit setting ........Error! Bookmark not defined. 3. Commissioning .......... Error! Bookmark not defined.

  • Page 51: Preparatory Work

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. Preparatory work 1.1 Inspection and confirmation  Confirm that refrigeration piping and communication wire of indoor and outdoor units have been connected to the same refrigeration system in order avoid unnecessary malfunctions.
  • Page 52 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1.3 Inspection list of trial run  Confirm the fan impeller is rotating according to its intended route and turns smoothly.  Check for abnormal noise during operation of refrigerant system and compressor.
  • Page 53 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual I n d o o r U n i t All the re frige ra nt ha s lea ked Full of le a king refrigera nt Calculate the critical thickness through following steps, and take necessary actions.

  • Page 54: Master Unit Setting

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. Master unit setting Definition Master Slave 1 Slave 2 Slave 3 3. Commissioning ”, it means IDU and ODU power on, then the main PCB digital tube displays“...
  • Page 55 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3.0 Enter Commissioning ● Enter Long press “Fun” button for more than 5 s ● Exit Long press “Test” button for more than 5 ● Quick finish After completing Step “3”, long press...
  • Page 56 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3.2 Quantity of ODU Digital tube displays “ ” If display quantity of ODU is inconsistent, need to conduct manual check ( DIP address, communication cable and etc. ) and commissioning confirmation again.
  • Page 57 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual communication cable of indoor units, and etc.) commissioning confirmation again. consistent, short press “Fun” button to confirm. digital If display quantity of IDU is “ ”，...
  • Page 58 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3.5 Components of ODUs Automatically detect components of outdoor units, During detecting, display “ ” displays, for example, “ ” If abnormal, then corresponding failure It cannot enter the next judgment Only displays the fault with the highest priority.
  • Page 59 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3.6 Components of IDUs During detecting, digital tube displays “ ”  If one of indoor units occur fault, display “ ” need to do Troubleshooting All buttons are invalid ...
  • Page 60 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual step 8 3.8 Refrigerant judgment During detecting, display “ ” [module low pressure P s] ≤ -25 ℃  If any , then point out refrigerant lack protection, display “...
  • Page 61 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual  If it is normal, display “ ”, About 2 s later, enter step 9. 3.9 Status judgment The status judgment of outdoor unit valve “...
  • Page 62 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual fault, 20min later, displays “ ” If there is no any “ ” or locking “ ” After 5s, enters normal standby status Project commissioning is finished 3.12 Heating Operation...

  • Page 63: Parameter Setting (Main Pcb)

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 4. Parameter Setting (Main PCB) 4.1 Functions set by switch Function Function Function setting-SW4 Without Compressor Without Modular emergency(Default) emergency(Default) 1# Compressor Modular emergency emergency 2# Compressor...
  • Page 64 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Notice：  In the table “OFF” means switch to down, “ON” means switch to up.  When you want to change any set, please consult our factory first.
  • Page 65 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual ： ”Up” or ”Down” to Press “Fun” to Press “Fun” 2 s choose below confirm Parameter Restore to Status Checking Commissioning Checking factory setting 4.2.2 [E] Parameter Checking Choose “...
  • Page 66 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 64 means: 1# compressor’s running frequency is 64 rps To Check other statue information by Press “up”/”down”, display from 1~ 15 parameter name units parameter name units 0.1℃...
  • Page 67 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual For example: display a parameter like” ”, means the present max capacity rate of IDU/ODU (No 1) is 135% Serial Number Function Name Display 135 or 200...
  • Page 68 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 4.2.4 [C] Function Setting Choose “ ”，short press “Fun” key 1. Press “Up” or “Down” key to choose the number of function you want (1~8) ” (C-light,1-flash) For example：Digital displays“...
  • Page 69 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. Choose number [3] 2. Short press [Fun] 0：basic mode (variable 3. choose [0] or [1] or [2] 1：high efficiency energy-efficie 0 is default, when you change it ,it 2：turbo mode...
  • Page 70 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. Choose the number [7] Refrigerant 2. Short press [Fun], 1 time recycle effective Then Recycle refrigerant to ODU 1. Choose the number [8] 2. Short press [Fun],...
  • Page 71 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual...

  • Page 72: Commissioning Based On Monitoring Software

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5. Commissioning Based on Monitoring Software 5.1 General Information 1. Main Function ， 1.1 Used for monitoring indoor and outdoor units’ operation parameters check the refrigerant system is normal or not 1.2 Control indoor units’...
  • Page 73 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5.2 Accessory 1. Hardware Laptop USB to RS485 converter 2. Software Monitoring Software Driver Program...
  • Page 74 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5.3 Installation of software 2. Choose the installation path, then click “Next” 1. Double click 3. Confirm the installation path, then click “Next” 4. Choose ”Create a desktop shortcut” and “Create a quick launch shortcut ”, then...
  • Page 75 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual click “Next” 5. Confirm, click “Install”...
  • Page 76 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6. Install... waiting 7. Automatic judge install ”Microsoft .net Framework 4.0”or not，If it should be installed， please choose “I have read and accept the license terms.”then colick ”Install“...
  • Page 77 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 8. Install “Microsoft .net Framework 4.0”，waiting…...
  • Page 78 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 9. Finishing 10. Finish the installation Desktop Icon...
  • Page 79 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5.4 Installation of Driver 1. Installation steps...
  • Page 80 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. After USB to RS485 converter be connect to laptop’s “USB port”, Open Management->Other devices-> “FT232R_USB_UART”。 2、Choose“FT232R_USB_UART” right click, then choose “Update Driver Software”...
  • Page 81 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3、Choose and click ”Browse my compute for driver software“ 4、Choose the position of the Driver program，Click ”OK”, then “Next”...
  • Page 82 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5、Finish installation of the first part...
  • Page 83 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6、Open Management->Other devices-> “USB Serial Port” right click, then choose “Update Driver Software”...
  • Page 84 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 7、Choose the position of the Driver program，Click “OK”, then “Next” 8、Finishing installation...
  • Page 85 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. Check USB-485 COM 1. Open the device manager (Win 7 path is: Control Panel > device manager; Win XP path is: Control Panel > management tool > Computer Management > device manager. The...
  • Page 86 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3. Change USB-485 COM 1. Choose the ”USB serial port ” , Choose “attribute” by right mouse button 2. Click “port setting”, then choose “Advanced” by left mouse button...
  • Page 87 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3. Through “COM port” choose a “COM x”, then click “OK” to finish change...
  • Page 88 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual...
  • Page 89 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5.5 Function 1. Communication Port 1. Click “ Connect ” button 2. Choose “ Com ”, then click “ Submit ” to start...
  • Page 90 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. Data Frame 1. Click “ Listen(L) ” button, Choose” Frame date”...
  • Page 91 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3. Control Indoor Unit Click “indoor control” button, Pop-up the following window Wired controller Indoor units’IP address...
  • Page 92 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 4. Operation Parameter Information...
  • Page 93 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. “Outdoor data(1/2)” means: The system had 2 ODUs, 1 unit was running and another unit was standby “Indoor data(3/11)” means: The system had 11 IDUs, 3 units were running and 8 units were standby 2.
  • Page 94 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual ① Name Reference Detailed information ＜32bar [bar] Discharge pressure ( 1bar=0.1Mpa ) ＜10bar [bar] Suction pressure ( 1bar=0.1Mpa ) [℃] Saturation temp. (discharge pressure) [℃] Saturation temp. (suction pressure) ＜92℃...
  • Page 95 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual ② Name Reference Detailed information INV1[rps] Target frequency（1# Compressor） INV2[rps] Target frequency（2# Compressor） Running frequency（1# Compressor） / aINV1[rps] Running frequency（2# Compressor） / aINV2[rps] Fan1Tar Target rpm（1# motor）...
  • Page 96 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Pluse_EXV2 (heating) 480(cooling) Pluse_EXV2 Pluse_EXV3( sub-cooling ) Pluse_EXV3 4-way valve (heating) Close(cooling) Unloading valve Open(cooling) Sub-cooling valve Open(heating) Vapor injection valve（1# Comp.） Open(heating) Vapor injection valve（2# Comp.）...
  • Page 97 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual ③ Name Reference Detailed information Rated Cap Outdoor capacity Nameplate [kW] Oper Mode Operating Mode Oper Proc Operating process state return/Comm Priority Priority TarCap Target output capacity...
  • Page 98 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3. Whole Indoor data interface Choose a line(one of the indoor unit), then the detailed information of this indoor unit will ① ② & be displayed above this line (...
  • Page 99 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual ① Name Detailed information Reference Address Indoor unit IP address Unit Mode Type of indoor unit Capacity Indoor unit’s capacity Nameplate FirmwVer...
  • Page 100 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual DriveCmd Drive mode state CapRed Demand state Cap(%) Capacity ration PC Ctrl ON_OFF ON/OFF state ModeCmd Setting Mode Settemp Setting temperature FanCmd Setting fan speed SwingCmd...
  • Page 101 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Name Detailed information Reference Super-heat Sub-cooled Pulse_EXV Pulse_EXV 100~300 Fan speed Fan speed state Pump Pump Heater Electric auxiliary heat Health Health Swing Swing FloatSW Float switch state...
  • Page 102 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Error code Error code 5. Operation Parameter Save 1. Click “Data” button 2. Choose “Data save setting” button...
  • Page 103 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3. Choose “Raw Data save setting” button 6. Operation Parameter Replay 1. Click “Replay(R) ” button, choose a data file to replay...
  • Page 104 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. Click “Start” button to replay 3. Replay progress, replay time, data path were displayed at the bottom. 7. Operation Parameter Curve 1. Click “ Curve(P)” button...
  • Page 105 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. The curve Can show all parameters which changing according the time Can read the real time parameters within recent 30 min 8. Operation Manual 1. Click “Help(H) ” button ,then choose “Help” to open the operation manual...
  • Page 106 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5.5 Registration 1. Permission Description The software's default state is the unregistered which can read real-time parameter, operation data’s save, indoor units’ control, operation parameter’s curve Parameter data replay function need to be registered, otherwise, cannot replay data 2.
  • Page 107 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. Click “Generate” 3. Copy raw code, then send to technical support engineer 4. Technical support engineer provide registration code 5. Click “Help(H) ” button to choose “Register”...
  • Page 108 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5. Input the Register and finish...

  • Page 109: Idu Parameter Setting By Controller

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6. IDU Parameter setting by Controller 6.1 Parameter Setting Items Parameter Setting Default Min. Max. Remark Items value value value Communication ID address Centralized ID address...
  • Page 110 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual （ 24 :60HZ low ESP duct Drain Pump) 24 :DC low ESP duct ( Drain Pump) 24 :AC low ESP duct (Optional Drain ） Pump 26 :DC E type Low ESP Duct...
  • Page 111 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 0--[auto][heating] [dehumidification][cooling][ventilation] operating mode 1--[heating] displayed by wired [dehumidification][cooling][ventilation] controller 2--[dehumidification][cooling][ventilati 0-- installation height is lower than 2.7m installation height of indoor unit 1--installation height is higher than 2.7m...
  • Page 112 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6.2 Parameter setting by YK – L 6.2.1 Enter the setting interface ① Make sure the remote controller is off ② Press the two white button at the down side simultaneously more than 10s to enter the address setting mode.
  • Page 113 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6.2.2 Parameter Setting 1. Press the [∧] or [∨] button to change the parameter series number 2. Press the [IClean] or [ECO] button to change the parameter correspondence 3.
  • Page 114 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual...
  • Page 115 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6.3 Parameter setting by XK-02A 6.3.1 Enter the setting interface ① Press [Filter Net Button] for 5 seconds, group number “01” of wired controller will be displayed in temperature zone of LCD screen and “0101”...
  • Page 116 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 4. Press [Mode Button] to confirm 6.4 Parameter setting by XK-05A 6.4.1 Enter the setting interface 1. Press “Function” button for 10s to enter the setting interface.
  • Page 117 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6.4.3 Parameter Correspondence Setting “ ” 1. Long press “Function” button for 5s, the second 0303 will flash 2. Press “up” /”down” button to change the number 3.
  • Page 118 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual...

  • Page 119: Part4 Special Control

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Part4 Special Control...

  • Page 120: Special Control

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. Special Control 1.1 Compressor emergency 1. This function is used for twin compressor models (18-22HP) Dip Switch in Compressor Main PCB Information 1# Comp. Abnormal...
  • Page 121 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. When one of these compressors had a fault For example : 1 # compressor abnormal 3. Set emergency function for 1# compressor, as Change according “Part 3 - 4.1 right diagram ( Functions set by switch”...
  • Page 122 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. When one of these outdoor units had a fault, For example : Slave 2 # abnormal 3. Set emergency function for Slave 2 #, as right diagram (Change according “Part 3 - 4.1 Functions...
  • Page 123 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1.3 Quiet mode Quiet in cooling mode Max frequency of compressor 90HZ Max frequency of fan motor 49HZ(single fan modular) Max frequency of fan motor 58HZ( twin fan modular)
  • Page 124 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual whole system until. 1.5 ODU static pressure control If the installation space the same as ＜ 1000 mm right diagram A i r e xh a u sti n g d e vi c e 1.
  • Page 125 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual ※ System will respond this function only when the outdoor environment temperature [Tao] ≤ -5℃ 1.8 Vacuum Pumping For after-sale :If a system had a refrigerant leakage, should find out the...
  • Page 126 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1.9 Economic locking (26℃) Through Master unit to set the Economic locking function, (Choose the function according “Part 3 – 4.2.4 [C] Function Setting “-【C……6】 )
  • Page 127 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1.10 Refrigerant Recycle For after-sale: If one of the system’s indoor unit must be replaced due to a refrigerant leakage point was find out in its evaporator...
  • Page 128 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1.11 Refrigerant Charging For after-sale: If a system lack of refrigerant , then we can choose the Refrigerant Charging function through master unit (Choose the function according “Part 3 –...
  • Page 129 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1# va lve Service va lve 2# va lve 3# va lve R410A weighing sca les Va cuum Sta te 5. Connect 1# connection hose to Service valve 6.
  • Page 130 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual ℃ ℃ ， 1. Outdoor temperature “Tao” should 15 ≤Tao≤40 ℃ ℃ ， 2. Indoor temperature “Tai” should 10 ≤Tai≤32 3. The quantity of indoor units which (capacity ≤1.5HP) should less than 70%...
  • Page 131 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual...

  • Page 132: Part5 Trouble Shooting

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Part5 Trouble shooting 1. IDU Fault code table ........Error! Bookmark not defined. 2. ODU Fault code table ........ Error! Bookmark not defined. 3. Indoor unit error code display....Error! Bookmark not defined.
  • Page 133 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5. Outdoor unit trouble shooting ....Error! Bookmark not defined. 6. Appendix ............. Error! Bookmark not defined.

  • Page 134: Idu Error Code Table (No.16)

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. IDU Error code table (No.16) 1.1 Temperature sensor failure (4) Code Definition Possible reason for error code Indoor ambient temperature 1. Indoor unit’s PCB failure Evaporator mid temperature sensor 2.
  • Page 135 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1.3 Others failure (12) Code Definition Possible reason for error code 1. Water pump no power 2. Water pump switch short-circuit or unconnected Indoor water pump failure 3.

  • Page 136: Odu Error Code Table (No.65)

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. The connection between PCB and step motor failure. 1. Indoor unit PCB is broken Indoor unit ERRPROM module failure 2. Error module is broken More than 2 indoor units’ central control...
  • Page 137 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual outdoor and indoor units indoor unit and outdoor unit disconnect, short circuit or incorrect 2. Indoor unit’s main power failed 3. Indoor unit’s PCB failure 4. Outdoor unit’s main PCB failure 1.
  • Page 138 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2.2 Pressure sensor failure (2) Code Definition Possible reason for error code 1. High pressure sensor failure 2. High pressure sensor connection 【P 】High pressure sensor failure is incorrect 3.
  • Page 139 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Compression ratio too high Compressor failure protection Compression ratio too low Compressor failure protection 2.4 Temperature sensor failure (10) Code Definition Possible reason for error code 【T...
  • Page 140 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2.5 Temperature abnormal (3) Code Definition Possible reason for error code Discharge temperature too low Compressor failure 1.System lack of refrigerant 【T 】1# Compressor discharge 2.DC inverter Compressor failure temperature too high 3.Compressor air return filter block...
  • Page 141 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 1. Compressor overload 2. Compressor coil disconnect Drive module current overload 3. Inverter driving board failure 4. Compressor failure 1. Supply voltage below level Drive module DC bus voltage over-voltage or under-voltage 2.
  • Page 142 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2. Supply voltage exceed limit Drive Module hardware protection 3. Outdoor fan stop or low speed Drive Module software protection 4. Drive module temp. too high 1.The connect of driving module and DC...
  • Page 143 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 2.8 1# Fan motor and drive failure (5) Code Definition Possible reason for error code Drive module high temperature Drive module over current Drive module start failure or running 1.
  • Page 144 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Drive module IPM alarm 2.10 Others failure (10) Code Definition Possible reason for error code 1. High pressure exceed high pressure switch limit. 2. High pressure switch failure 3.
  • Page 145 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Oil shortage fault Once confirm the unrecoverable 1. Supply power phase-reversal Main power failure 2. Supply power phase lack 3. Outdoor unit PCB failure 1. Outdoor unit dial switch incorrect Parameter set incorrect 2.

  • Page 146: Indoor Unit Error Code Display

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3. Indoor unit error code display 3.1 Error code display by YK-02A After indoor and outdoor units shut down due to failure, failure code will display on wired controller.
  • Page 147 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual “E0A1”means the first error code “A1” ,through the “2.1 IDU Fault code table” to check error code definition, “E2A3” means the second error code is “A3”...

  • Page 148: Outdoor Unit Error Code Display

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 4. Outdoor unit error code display For outdoor units, the error code displays on the main PCB (Master unit ) Outdoor unit control box Outdoor unit main PCB...
  • Page 149 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Digital tube in main PCB Error code “ H5 ” , through the “2.2 ODU Fault code table” to check the definition: system leakage...
  • Page 150 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Symbol Description...
  • Page 151 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ...
  • Page 152 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ TSRN TR-IN 4WV1...
  • Page 153 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ PMV3 PMV2 PMV1 TR_O C-INV Td3/Td4 Tao/Ts/Tho1/Tdef1/Td1 C-FAN C-I/0 Tho2/Tdef2...
  • Page 154 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Definition of ports Symbol Detailed information Abbreviation N R S T Power input TR_IN Transform input AC contact 1# Compressor preheating 2# Compressor preheating 4WV1 4-way valve...

  • Page 155: Outdoor Unit Trouble Shooting

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Ground wire 5. Outdoor unit trouble shooting 5.1 E3 E4 Error Code E3 / E4 : Discharge temperature "Tda" "Tdb" too high Compressor discharge temperature sensor detected Td ≥120 ℃...
  • Page 156 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Check whether refrigerant circuit is unblocked 1. IDU’s coil of EXV is abnormal? 1. Replace power coil of EXV → 2. IDU’s EXV is abnormal, through monitoring 2.
  • Page 157 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual temperature is same or not which between inlet and outlet piping of the EXV. ↓ → Replace sensor Pressure sensor is abnormal? ↓ System lack of refrigerants? Through check the →...
  • Page 158 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual ↓ → Clean Condenser dirty block? ↓ → Pressure sensor is abnormal? Replace sensor ↓ → Discharge temperature and Driver modular temperature is too high? ↓...
  • Page 159 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5.4 HF Error code HF： Oil shortage fault When detect the oil temperature is abnormal, low temperature near the environment temperature. In addition, discharge super-heat is normal. Then will appear HF Error code, whole system will stop running.
  • Page 160 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5.5 HJ Error code HJ：Main power failure When detect incorrect phase sequence, Then will appear HJ Error code, whole system stop running. ↓ → Tighten the wiring Power terminal board wiring loosening? ↓...
  • Page 161 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Contact the manufacturer's Technician 5.6 H5 Error code H5：Refrigerant shortage fault Long time power off or standby ( over 4 hours ), through detect high pressure...
  • Page 162 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual Through below steps to check whether the system lack of the refrigerant: 1. Discharge temperature too high than normal ← situation? ( Normal discharge temperature about 80℃）...
  • Page 163 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 5.7 FH Error code ： Discharge temperature "Tdi" too low limit frequency protection System detect discharge superheat temperature less than 10℃ within 20 minutes , then will appear FH error code to protect ↓...
  • Page 164 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual ↓ → Replace Discharge temperature sensor abnormal ↓ Contact with the manufacturer's Technician...

  • Page 165: Appendix

    ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6. Appendix Relation between temperature sensor of compressor and resistance R25=50KΩ±1% B25/50=3950K ±1% Rmin [KΩ] Rnom [KΩ] Rmax [KΩ] T [℃] 449.9 464.7 479.9 425.7 439.5 453.6...
  • Page 166 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 192.7 197.3 202.0 183.2 187.5 191.9 174.3 178.3 182.4 165.8 169.5 173.3 157.7 161.2 164.7 150.2 153.4 156.7 142.9 145.9 148.9 136.1 138.9 141.7 129.7 132.3 134.93...
  • Page 167 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 70.57 71.54 72.51 67.46 68.35 69.25 64.49 65.32 66.15 61.68 62.44 63.20 59.00 59.70 60.40 56.44 57.09 57.74 54.02 54.61 55.20 51.70 52.25 52.80 49.50 50.00 50.50...
  • Page 168 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 28.50 28.95 29.40 27.37 27.81 28.25 26.29 26.72 27.16 25.24 25.67 26.10 24.25 24.67 25.09 23.31 23.72 24.14 22.41 22.81 23.22 21.53 21.93 22.33 20.71 21.10 21.50...
  • Page 169 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 12.69 12.99 13.30 12.23 12.53 12.83 11.80 12.09 12.39 11.39 11.67 11.96 10.98 11.26 11.54 10.60 10.87 11.15 10.23 10.50 10.77 9.880 10.14 10.41 9.537 9.792 10.05...
  • Page 170 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 6.147 6.339 6.536 5.950 6.138 6.331 5.761 5.944 6.133 5.578 5.757 5.942 5.401 5.577 5.758 5.231 5.403 5.580 5.069 5.237 5.410 4.912 5.076 5.245 4.760 4.921 5.087...
  • Page 171 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual 3.212 3.333 3.459 3.119 3.238 3.361 3.030 3.146 3.267 2.942 3.056 3.174 2.858 2.970 3.086 2.778 2.887 3.000 2.699 2.806 2.917 2.623 2.728 2.837 2.549 2.652 2.758...
  • Page 172 ARV OUTDOOR UNIT – MegaLife ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual...

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