ActronAir ECOFLEX MINI VRF Series Installation And Commissioning Manual
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ActronAir ECOFLEX MINI VRF Series Installation And Commissioning Manual

Air conditioner - outdoor
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ECOFLEX MINI VRF R-32 SERIES
Air Conditioner - Outdoor
Installation and Commissioning Guide
Model Numbers
Single Phase Three Phase
MMV-080CS
MMV-100CS
MMV-120CS
MMV-140CS
MMV-160CS
MMV-180CS
CAUTION:
The system is charged with flammable
refrigerant, safety checks are necessary to
ensure that the risk of ignition is minimised.
MMV-120CT
MMV-140CT
MMV-160CT
MMV-180CT
IMPORTANT NOTE:
Please read the R-32 Safety Manual and this manual carefully
before installing or operating your air conditioning unit.
Information in this manual is to be used in conjunction with
the R-32 Safety Manual.
Make sure to save this manual for future reference.

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  • Page 1 ECOFLEX MINI VRF R-32 SERIES Air Conditioner - Outdoor Installation and Commissioning Guide Model Numbers Single Phase Three Phase MMV-080CS MMV-120CT MMV-100CS MMV-140CT MMV-120CS MMV-160CT MMV-140CS MMV-180CT MMV-160CS MMV-180CS CAUTION: IMPORTANT NOTE: The system is charged with flammable Please read the R-32 Safety Manual and this manual carefully refrigerant, safety checks are necessary to before installing or operating your air conditioning unit.

  • Page 2: Table Of Contents

    ECOFLEX MINI VRF R-32 SERIES Installation Manual Table of Contents 01. PRECAUTIONS ..........................4 02. PACKING BOX ..........................6 02.01. Delivery and Moving 02.02. Attached Fittings 03. OUTDOOR UNIT ..........................7 03.01. Outdoor Unit Combination Ratio 03.02. Outdoor unit Stop Valve Size 04.
  • Page 3 ECOFLEX MINI VRF R-32 SERIES Installation Manual 14. MAINTENANCE AND REPAIR ....................... 68 14.01. Maintenance After the Unit Has Been Shut Down for a Long Period 14.02. About the Refrigerant 14.03. Shorter Maintenance and Replacement Cycle 15. TROUBLESHOOTING ........................70 15.01.

  • Page 4: Precautions

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 01. PRECAUTIONS • Ensure that all Local, National and International regulations are satisfied. • Read these “PRECAUTIONS” carefully before Installation. • The precautions described below include important items regarding safety. Observe them without fail. •...
  • Page 5 ECOFLEX MINI VRF R-32 SERIES Installation Manual WARNING • If the connecting cable is connected incorrectly, electric parts may become damaged. • When moving the air conditioner for the installation into another place, be very careful not to enter any gaseous matter other than the specified refrigerant into the refrigeration cycle.

  • Page 6: Packing Box

    ECOFLEX MINI VRF R-32 SERIES Installation Manual Required tools for installation work Philips screw driver Hole core drill (65mm) Spanner Pipe cutter Knife Reamer Gas leak detector Tape measure Thermometer Mega-tester Electro circuit tester Hexagonal wrench Flare tool Pipe bender Level vial Metal saw Gauge manifold (Charge hose: R-32 special...

  • Page 7: Attached Fittings

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 02.02. Attached Fittings NAME APPEARANCE QUANTITY Outdoor Unit Installation manual INSTALLATION Water outlet pipe connector FITTINGS Magnetic ring (Only for single-phase units) Build-out resistor NOTE • Check if any accessory in the above figure is missing. All the accessories must be kept properly. •...

  • Page 8: Outdoor Unit Stop Valve Size

    ECOFLEX MINI VRF R-32 SERIES Installation Manual CAUTION • The total capacity of the Indoor Units, measured in KW, must not exceed 160% of the capacity of the Outdoor Unit. When the combination ratio of Indoor Unit exceeds 100%, the output capacity of the system may decrease. •...
  • Page 9 ECOFLEX MINI VRF R-32 SERIES Installation Manual CAUTION • Install the outdoor unit at a place where discharge air is not blocked. • When an outdoor unit is installed in a place that is frequently exposed to strong winds like a coast or on the high story of a building, ensure normal fan operation by using a duct or a wind shield.
  • Page 10 ECOFLEX MINI VRF R-32 SERIES Installation Manual Single unit installation (Wall or obstacle) Air inlet surface > 300 Maintenance > 300 cable and pipeline surface Air inlet surface > 600 > 2000 Air outlet surface Figure 4-3 Parallel connect the two units or above Parallel connect the front with rear sides CAUTION Keep a distance of 2000mm or...

  • Page 11: Selecting And Preparing The Refrigerant Piping

    • The refrigerant shut-off device (RSD) is optional. Please contact ActronAir to purchase. Referigerant shut- off device shall be located outside, installed on the main pipe and close to the first branch joint. For more detailed instructions, please refer to the corresponding installation and operation manual.
  • Page 12 ECOFLEX MINI VRF R-32 SERIES Installation Manual 04.02.03. Piping and component definition Definition Pipe connection position Code The pipe between the outdoor unit and the first branch Main pipe joint. Indoor unit main pipe The pipe between the branch joints. L2~L5 Indoor unit auxiliary The pipe between the indoor unit and the nearest...
  • Page 13 ECOFLEX MINI VRF R-32 SERIES Installation Manual 04.02.05. Refrigerant pipe selection Select refrigerant pipe and branch joint according to Table 4-1 to 4-4. NOTE • Branch header can also be selected to connect pipes and indoor units. Meanwhile, the relevant requirements in the Owner’s Manual and Installation manual must be followed •...
  • Page 14 ECOFLEX MINI VRF R-32 SERIES Installation Manual Table 4-4 Total capacity of Indoor unit main pipe size (mm OD) the downstream indoor units (×100 W) Gas pipe (Ø) Liquid pipe (Ø) A<63 Ø 12.7 Ø 6.35 63≤A<160 Ø 15.9 Ø 9.52 The pipe thickness of the refrigerant piping shall comply with the applicable legislation.

  • Page 15: Outdoor Unit Installation

    ECOFLEX MINI VRF R-32 SERIES Installation Manual Select main pipe (L1) and first branch joint (A) The outdoor unit capacity is 16 kW, and the equivalent piping length from the outdoor units to the farthest indoor unit is not more than 90 m. So refer to Table 4-1, the main gas liquid pipe size is Ø15.9 and Ø9.52 respectively. The downstream indoor unit capacity is 16.2 kW.

  • Page 16: Refrigerant Piping Connection

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 05.03. Refrigerant Piping Connection CAUTION • Please be careful to avoid the components while connecting to the connecting pipes. • Low temperature solder alloys, such as lead/tin alloys, are not acceptable for pipe connections or any other refrigerant pressure containing purposes.

  • Page 17: Leak Detection

    ECOFLEX MINI VRF R-32 SERIES Installation Manual CAUTION • Side out pipe: please remove the L-shape metal plate, otherwise wiring cannot be completed. • Back outlet pipe: please wipe off the piping support rubber blanket beside the inner outlet pipe cover of the machine while the pipe exits from the back.

  • Page 18: Airtight Test

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 05.06. Airtight Test Air tightness test – OFN (Oxygen Free Nitrogen) must be used. Increase the pressure from the liquid pipe and gas pipe to 4.0 MPa at the same time (not exceeding 4.0 MPa). If the pressure does not drop in 24 hours, the test is passed.
  • Page 19 ECOFLEX MINI VRF R-32 SERIES Installation Manual NOTE • Make sure all connected indoor units have been identified. • Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them. • Cylinders shall be kept upright. •...

  • Page 20: Electrical Wiring

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 06. ELECTRICAL WIRING 06.01. Safety Device Requirements 1. Select the wire diameters (minimum value) individually for each unit based on the rated current, as shown in Table 6-1 and Table 6-2. 2. For thee-phase units, the maximum allowable voltage range variation between phases is 2%. 3.

  • Page 21: Connecting The Power Cord

    ECOFLEX MINI VRF R-32 SERIES Installation Manual • For three-phase units, units are suitable for use in electrical systems where voltage supplied to unit terminals is not below or above listed range limits. The maximum allowable voltage variation between phases is 2%. •...

  • Page 22: Connecting The Communication Wiring

    ECOFLEX MINI VRF R-32 SERIES Installation Manual WARNING When inserting the strong-current cables and communication lines into the wiring holes, they must be equipped with wiring across rings to avoid being worn. Wiring Terminal Description 06.03. Connecting the Communication Wiring NOTE For a single-phase system, the EMI effect of the communication line M1M2 (or PQE) can be improved by adding a magnetic ring.
  • Page 23 ECOFLEX MINI VRF R-32 SERIES Installation Manual CAUTION • On-site wiring must comply with the relevant regulations of the local country/region and must be completed by professionals. • The communication lines of the IDUs and Outdoor Unit can only be led out and connected from the Outdoor Unit. •...
  • Page 24 ECOFLEX MINI VRF R-32 SERIES Installation Manual RS-485(PQ) communication L1+La+Ln≤1200m,Communication wiring 2*0.75mm2 Communication wire Power wire CAUTION • After the last indoor unit, the communication wiring should not route back to the outdoor unit as this will form a closed loop.
  • Page 25 ECOFLEX MINI VRF R-32 SERIES Installation Manual RS-485(PQ) communication CAUTION • The cross-sectional area of each core of the communication wiring is not less than 0.75 mm2, and the length must not exceed 1200 m. • Connect the shielding nets at both ends of the shielded wire to the sheet metal “⏚” of the electronic control box. •...

  • Page 26: Configuration

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 07. CONFIGURATION 07.01. Overview This chapter describes how the system configuration can be implemented once the installation is complete, and other relevant information. • It contains the following information: Implement field settings. • Energy-saving and optimized operation •...
  • Page 27 ECOFLEX MINI VRF R-32 SERIES Installation Manual 07.02.03. Menu mode 1. Press and hold SW5 “MENU” button for 5 seconds to enter menu mode, and the digital display will display “n1”. 2. Press SW3 / SW4 “UP / DOWN” button to select the first-level menu “n1”, “n2”, “n3”, “n4” or “nb”. 3.
  • Page 28 ECOFLEX MINI VRF R-32 SERIES Installation Manual Table 7-3 First-level Second Specified Description Default menu level menu menu mode History error Cleaning history error Query Indoor unit's address Driver's version(compressor and fan displayed in turn) SN code Cooling Test Heating Test Test running Refrigerant recovery to outdoor unit Refrigerant recovery to indoor unit...
  • Page 29 ECOFLEX MINI VRF R-32 SERIES Installation Manual First-level Second Specified Description Default menu level menu menu mode Power limitation mode, Maximum current =MCA * setting value ✓ Meta function unavailable ✓ Meta function available ✓ Celsius unit Fahrenheit unit ✓ Dry contact closing effective Dry contact opening effective ✓...
  • Page 30 ECOFLEX MINI VRF R-32 SERIES Installation Manual First-level Second Specified Description Default menu level menu menu mode Evaporation temperature setting (Ke0=-3) Evaporation temperature setting (Ke0=0) Evaporation temperature setting (Ke0=3) ✓ Evaporation temperature setting (Ke0=6) Evaporation temperature setting (Ke0=7) Evaporation temperature setting (Ke0=8) Evaporation temperature setting (Ke0=9) Evaporation temperature setting (Ke0=10) Evaporation temperature setting (Ke0=11)
  • Page 31 ECOFLEX MINI VRF R-32 SERIES Installation Manual 07.02.04. UP/DOWN system check button Before pressing the UP or DOWN button, allow the system to operate steadily for more than an hour. On pressing the UP or DOWN button, the parameters listed in the following table will be displayed in sequence. Table 7.4 DISP.
  • Page 32 ECOFLEX MINI VRF R-32 SERIES Installation Manual DISP. CONTENT DESCRIPTION Quantity of running IDUs Actual quantity [0] OFF [1] C1: Condenser [2] D1: Reserved Heat exchanger status [3] D2: Reserved [4] E1: Evaporator [5] F1: Reserved [6] F2: Reserved [0] Not in special mode [1] Oil return [2] Defrost Special mode...

  • Page 33: Commissioning

    Use the megameter of 500V, apply a 500V DC between the power termin 8.2 Things to Note During the Test earth terminal. Check that megameter on the transmission line. ECOFLEX MINI VRF R-32 SERIES Installation Manual WARNING Fuses, circuit breakers, or protectio Check that the fuses, circuit breakers 08.

  • Page 34: Checklist Before Test Run

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 08.03. Checklist Before Test Run Once this unit is installed, check the following items first. After all the following checks have been completed, you must shut down the unit. This is the only way to start the unit again. Installation Check if the unit is installed correctly to prevent strange noises and vibrations when the unit starts.

  • Page 35: About Test Run

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 08.04. About Test Run The following procedures describe the test run of the whole system. This operation checks and determines the following items: • Check if there is a wiring error (with the communication check of the indoor unit). •...
  • Page 36 ECOFLEX MINI VRF R-32 SERIES Installation Manual Step 6: System initialization Entering system initialization, the digital display of the Outdoor Unit flashes “Init” and “X YZ” in rotation. “InIt” means initialization is in progress, “X” represents the address of the Outdoor Unit, “YZ” represents the number of detected IDUs;...
  • Page 37 ECOFLEX MINI VRF R-32 SERIES Installation Manual Test run flow chart 8.6 Rectifications after Te Test run flow chart 8.6 Rectifications af Test run flow chart Completed with Exception Completed with Exc The system is powered The system is powered on and display “-.-.-.-.”...

  • Page 38: Rectifications After Test Run Is Completed With Exceptions

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 08.06. Rectifications after Test Run is Completed with Exceptions The test run is considered complete when there is no error code on the user interface or the outdoor unit display. When an error code is displayed, rectify the operation based on the description in the error code table. Try to conduct the test run again to check if the exception has been corrected.

  • Page 39: Important Information For The Used Refrigerant

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 09.01. Important Information for the Used Refrigerant This product has fluorinated gas. This gas MAY NOT be released into the air. Refrigerant type: R-32; Value of GWP: 675; GWP=Global Warming Potential Table 9-1 Factory charge Model Refrigerant/kg...

  • Page 40: Start Up And Commissioning

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 10. START UP AND COMMISSIONING 10.01. Recording of Final R-32 Refrigerant Charge In case adjustment of refrigerant charge is required, the total charge must not exceed the maximum charge as per “Minimum Room Area and Maximum Charge Guide” section of the R-32 Safety Manual. The total R-32 charge (factory refrigerant charge + adjustment quantity of refrigerant) must be recorded in the “Total Charge Amount Label on the outdoor unit and the “Start Up and Commissioning Report”...

  • Page 41: Technical Data

    11. TECHNICAL DATA 11. TECHNICAL DATA 11.1 Component Layout and Refrigerant Circuits 11.1 Component Layout and Refrigerant Circuits 8-10kW (Single-phase) ECOFLEX MINI VRF R-32 SERIES Installation Manual 8-10kW (Single-phase) Liquid T5 GLQ2 Stop Valve EXVA Heat Sink Liquid 11. TECHNICAL DATA GLQ1 11.
  • Page 42 12-18kW (Single-phase) 12-18kW (Single-phase) 12-18kW (Single-phase) Liquid Liquid ECOFLEX MINI VRF R-32 SERIES Installation Manual T5 GLQ2 Stop Valve EXVA Heat Sink T5 GLQ2 Stop Valve EXVA Heat Sink Liquid GLQ1 12-18kW (Single-phase) GLQ1 T5 GLQ2 Stop Valve EXVA Heat Sink GLQ1 12-18kW (Single-phase) 12-18kW (Single-phase)
  • Page 43 12-18kW (Three-phase) 12-18kW (Three-phase) 12-18kW (Three-phase) Liquid 12-18kW (Three-phase) EXVA ECOFLEX MINI VRF R-32 SERIES Installation Manual Liquid EXVA Stop Valve GLQ2 GLQ1 Stop Valve GLQ2 Liquid GLQ1 EXVA 12-18kW (Three-phase) Stop Valve GLQ2 GLQ1 12-18kW (Three-phase) EXVA EXVC EXVC GLQ1 Stop Valve GLQ3...

  • Page 44: Fan Performance

    11.2 Fan Performance ECOFLEX MINI VRF R-32 SERIES Installation Manual 11.2 Fan Performance 11.2 Fan Performance 11.02. Fan Performance 18kW unit fan performance 8-10kW unit fan performance 18kW unit fan performance 18kW unit fan performance 8-10kW unit fan performance 8-10kW unit fan performance 35Pa 35Pa 35Pa...

  • Page 45: Before Operating

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 12. BEFORE OPERATING To prevent injury to the user or others and property damage, the following instructions must be followed. Ignoring these instructions may cause harm or damage. INFORMATION Read these instructions carefully before operation. And keep this manual handy for future reference. WARNING •...

  • Page 46: Safety Instructions

    Children shall not play with the appliance. Children shall not clean or maintain the appliance without supervision. – Children should be supervised to ensure that they do not play with the appliance. – This outdoor unit is designed to match only with an ActronAir indoor unit as specified in the Technical Selection Catalogue.
  • Page 47 ECOFLEX MINI VRF R-32 SERIES Installation Manual WARNING • When repairing the refrigerating system, comply with the following precautions prior to conducting work on the system: – shall be undertaken according to controlled procedures so as to minimize the risk of the presence of flammable gases or vapors while the work is being performed.
  • Page 48 ECOFLEX MINI VRF R-32 SERIES Installation Manual WARNING • Repair and maintenance of electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until the fault has been dealt with satisfactorily.
  • Page 49 ECOFLEX MINI VRF R-32 SERIES Installation Manual WARNING • When opening the refrigerant circuit to make repairs – or for any other purpose – conventional procedures shall be used. However, for flammable refrigerants it is important that best practice is followed since flammability is aconsideration.
  • Page 50 ECOFLEX MINI VRF R-32 SERIES Installation Manual WARNING • Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant.
  • Page 51 The maximum operating pressure of the aplication is 43 bar, which must be considered when connecting to any condenser unit or evaporator unit. • This outdoor unit is designed to match only with an ActronAir indoor unit as specified in the Technical Selection Catalogue. •...
  • Page 52 ECOFLEX MINI VRF R-32 SERIES Installation Manual CAUTION • Do not use the air conditioner for other purposes. In order to avoid any quality deterioration, do not use the unit for the cooling of precision instruments, food, plants, animals or works of art. •...

  • Page 53: Instructions For Application Using R-32 Refrigerant

    ECOFLEX MINI VRF R-32 SERIES Installation Manual CAUTION • When the combination ratio of IDUs is greater than or equal to 110%, in order to ensure the capacity of the machine, try to turn on the indoor units at different time. •...
  • Page 54 ECOFLEX MINI VRF R-32 SERIES Installation Manual 12.03.01.02. Piping installation requirements Low temperature solder alloys, such as lead/tin alloys, are not acceptable for pipe connections. Reusable mechanical connectors and flared joints are not allowed indoors. (AS/NZS 60335.2.40:2019 Standard Requirements). Mechanical connectors used indoors shall comply with ISO 14903. When mechanical connectors are reused indoors, sealing parts shall be renewed.
  • Page 55 limitations (strategy 1) The indoor unit installation height cannot b The system uses R32 refrigerant which is classified as less than 1.8 m. For more detailed instructio class A2 and is flammable under EN 60335-2-40. on the installation height of the indoor uni ECOFLEX MINI VRF R-32 SERIES Installation Manual Follow the requirements below to ensure that the...
  • Page 56 ECOFLEX MINI VRF R-32 SERIES Installation Manual Table 12-1 Mmax/kg--(a)/(b) Mmax/kg--(a)/(b) Mmax/kg--(a)/(b) 2.048/2.503 4.911/6.003 6.637/7.956 2.29/2.798 5.017/6.132 6.715/7.956 2.508/3.066 5.12/6.258 6.793/7.956 2.709/3.311 5.222/6.382 6.87/7.956 2.896/3.54 5.321/6.504 6.946/7.956 3.072/3.755 5.419/6.623 7.021/7.956 3.238/3.958 5.515/6.74 7.095/7.956 3.396/4.151 5.609/6.856 7.169/7.956 3.547/4.336 5.702/6.969 7.241/7.956 3.692/4.513 5.793/7.08 7.313/7.956 3.832/4.683...
  • Page 57 ECOFLEX MINI VRF R-32 SERIES Installation Manual 12.03.01.04. Refrigerant charge and room area limitations (strategy 2) In AS/NZS 60335.2.40:2019 Standard Requirements, R-32 refrigerant is classified as class A2L, which is mildly flammable. And the system meets the requirements of enhanced tightness refrigerating systems. Therefore, R-32 refrigerant is suitable for systems needing additional refrigerant charge and which will limit room area strategy.
  • Page 58 The opening shall be at least 1.5 m above the system meets the inco floor. requirements for the indo less than 2.2 m. The height of the opening is not less than 20 mm. ECOFLEX MINI VRF R-32 SERIES Installation Manual The maximum refrigerant available only if the follow Minimum velocity of...
  • Page 59 ECOFLEX MINI VRF R-32 SERIES Installation Manual NOTE The maximum refrigerant charge of the curve (c) is available only if the following conditions are met: • Minimum velocity of 1 m/s2, which is calculated as the indoor unit airflow divided by the nominal face area of the outlet.
  • Page 60 ECOFLEX MINI VRF R-32 SERIES Installation Manual Table 12-3 Mmax/kg--(a)/(b)/(c)/(d) A Mmax/kg--(a)/(b)/(c)/(d) A Mmax/kg--(a)/(b)/(c)/(d) 1.657/2.026/1.657/2.026 7.198/8.797/12/12 9.97/12/12/12 2.072/2.532/2.072/2.532 7.271/8.887/12/12 10.022/12/12/12 2.486/3.039/2.486/3.039 7.343/8.975/12/12 10.075/12/12/12 2.72/3.325/2.901/3.545 7.415/9.063/12/12 10.127/12/12/12 2.908/3.554/3.315/4.052 7.486/9.15/12/12 10.18/12/12/12 3.085/3.77/3.73/4.558 7.556/9.235/12/12 10.231/12/12/12 3.251/3.974/4.144/5.065 7.626/9.321/12/12 10.283/12/12/12 3.41/4.168/4.558/5.572 7.695/9.405/12/12 10.334/12/12/12 3.562/4.353/4.973/6.078 7.763/9.489/12/12 10.385/12/12/12 3.707/4.531/5.387/6.585 7.831/9.571/12/12...
  • Page 61 ECOFLEX MINI VRF R-32 SERIES Installation Manual (a): The Indoor Unit installation height between 1.8 m and 2.2 m. (b): The Indoor Unit installation height not less than 2.2 m. (c): The system meets the incorporated circulation airflow requirements for the Indoor Unit installation height between 1.8m and 2.2m.
  • Page 62 branch joint. protecting. The refrigerant shut-off device is not allowed for series or parallel connections. The refrigerant shut-off device shall be positioned to enable access for maintenance by an authorized person. ECOFLEX MINI VRF R-32 SERIES Installation Manual For 8-10 kW For 8-10 kW 12.00 10.00...
  • Page 63 ECOFLEX MINI VRF R-32 SERIES Installation Manual Table 12-4 For 8-10 kW Mmax/kg--(a)/(b)/(c)/(d) A Mmax/kg--(a)/(b)/(c)/(d) A Mmax/kg--(a)/(b)/(c)/(d) 1.657/2.026/-/3.15 -/-/5.065/6.865 -/-/8.78/10.58 2.072/2.532/-/3.488 -/-/5.403/7.203 -/-/9.117/10.917 2.486/3.039/-/3.826 -/-/5.74/7.54 -/-/9.455/11.255 2.72/3.325/-/4.163 -/-/6.078/7.878 -/-/9.793/11.593 2.908/3.554/-/4.501 -/-/6.416/8.216 -/-/10.131/11.931 3.085/3.77/-/4.839 -/-/6.754/8.554 -/-/10.468/12 3.377/3.974/-/5.177 -/-/7.091/8.891 -/-/10.806/12 3.714/4.168/-/5.514 -/-/7.429/9.229 -/-/11.144/12 4.052/4.353/-/5.852 -/-/7.767/9.567...
  • Page 64 ECOFLEX MINI VRF R-32 SERIES Installation Manual NOTE • The maximum refrigerant charge has to be assessed for the room with the smallest room area in both the lowest underground floor and the other floors. • And in the lowest underground floor, the maximum refrigerant charge is also related to types of the indoor units, which have different installation heights.
  • Page 65 ECOFLEX MINI VRF R-32 SERIES Installation Manual Installation scheme flow chart Check if the area of the smallest room meets the requirements Determine the room size and the refrigerant system configuration Calculate the total refrigerant charging amount (Mc) according to section 05.08.01 Decrease piping length by changing...

  • Page 66: Operations

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 13. OPERATIONS 13.01. Operating Range Use the system in the following temperatures to ensure safe and effective operation. Model 8/10/12/14/16/18 kW Outdoor temperature /DB -15 °C to 52 °C Cooling Indoor temperature /DB 16 °C to 30 °C Indoor temperature /WB 13 °C to 23 °C...
  • Page 67 ECOFLEX MINI VRF R-32 SERIES Installation Manual 13.02.03. Features of heating operation About heating capacity Once the unit starts, it takes some time for the room temperature to rise, as the unit uses a hot air circulation system to heat the room. The indoor fan motor will automatically stop running so as to prevent cold air from coming out of the indoor unit when the heating operation starts.

  • Page 68: Maintenance And Repair

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 14. MAINTENANCE AND REPAIR Each refrigerating system shall be subjected to preventive maintenance in accordance with legal requirements. The frequency of maintenance depends on the type, size, age, use, etc. of the system. In many cases, more than one maintenance service is required in one year.

  • Page 69: About The Refrigerant

    ECOFLEX MINI VRF R-32 SERIES Installation Manual For example, at the end of winter or summer. • Run the indoor unit in the fan mode for about half a day to dry the internal parts of the unit. • Turn off the power supply. •...

  • Page 70: Troubleshooting

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 15. TROUBLESHOOTING 15.01. Air Conditioner Troubles and Their Causes If one of the following malfunctions occurs, stop the air conditioner from operating, shut off the power, and contact your dealer. • The remote controller malfunctions or the buttons do not work well. •...

  • Page 71: Troubles And Causes Of Remote Controller

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 15.02. Troubles and Causes of Remote Controller Before requesting service or repair, check the following points. Symptoms Causes Solution When the automatic mode is selected, the Check whether the MODE indicated on the air conditioner will automatically change its display is “AUTO”.

  • Page 72: Error Code: Overview

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 15.03. Error Code: Overview If an error code appears on the controller, please contact the installation personnel and inform them of the error code, device model, and serial number (you can find the information on the nameplate of the unit). 15.3 Outdoor unit error code Manual re-start Error code...
  • Page 73 ECOFLEX MINI VRF R-32 SERIES Installation Manual Manual re-start Error code Error description required Power supply BN connect protection, or the phase is missing, or unbalanced when powered on DC bus low voltage protection DC bus ripple wave protection, or the phase is missing, or unbalanced when powered on 1P56 Inverter module DC bus low voltage error 1P57...
  • Page 74 ECOFLEX MINI VRF R-32 SERIES Installation Manual Manual re-start Error code Error description required 1L45 Motor code mismatch 1L46 IPM protection 1L47 Module type mismatch 1L5E Startup failed 1L51 Stall failure 1L52 No load protection 1L6E Motor phase loss protection 1LbE High voltage switch action 1Lb7...

  • Page 75: Fault Symptom: Non Air Conditioning Issues

    ECOFLEX MINI VRF R-32 SERIES Installation Manual Manual re-start Error code Error description required Refrigerant quantity judgment, Significantly insufficient There is a no power indoor unit in the system, HyperLink is controlling the indoor unit’s valve Communication error between the outdoor unit and the expansion board 15.04.

  • Page 76: Changing Installation Site And Disposal

    ECOFLEX MINI VRF R-32 SERIES Installation Manual Symptom 5: Dust comes out of the unit • When the unit is used for the first time in a long time, it is because dust has gotten into the unit. Symptom 6: The units give off odors •...

  • Page 77: Maintenance Frequency Checklist

    ECOFLEX MINI VRF R-32 SERIES Installation Manual 17. Maintenance Frequency Checklist Regular servicing of equipment by a qualified technician is recommended every 12 months for residential applications and every quarter for commercial applications. Regular servicing of your unit helps in maintaining its optimum performance and reliability.
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  • Page 90 ©Copyright 2023 Actron Engineering Pty Limited ABN 34 002767240. ®Registered Trade Marks of Actron Engineering Pty Limited. ActronAir is constantly seeking ways to improve the design of its products. Therefore, specifications are subject to change without notice. Installation & Commissioning Guide ECOFLEX MINI VRF R-32 SERIES - OUTDOOR...

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