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

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ECOFLEX MINI VRF R32 SERIES
Four-way Cassette
Installation and Commissioning Guide
Model Numbers
MFC-028CS
MFC-080CS
MFC-036CS
MFC-090CS
MFC-045CS
MFC-100CS
MFC-056CS
MFC-112CS
MFC-071CS
MFC-140CS
CAUTION:
The system is charged with flammable
refrigerant, safety checks are necessary to
ensure that the risk of ignition is minimised.
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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Summary of Contents for ActronAir ECOFLEX MINI VRF Series

  • Page 1 ECOFLEX MINI VRF R32 SERIES Four-way Cassette Installation and Commissioning Guide Model Numbers MFC-028CS MFC-080CS MFC-036CS MFC-090CS MFC-045CS MFC-100CS MFC-056CS MFC-112CS MFC-071CS MFC-140CS CAUTION: IMPORTANT NOTE: The system is charged with flammable Please read the R-32 Safety Manual and this manual carefully before installing refrigerant, safety checks are necessary to or operating your air conditioning unit.

  • Page 2: Table Of Contents

    Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES Table of Contents 01. Preface ............................3 02. Safety Warning ..........................3 02.01. Warning Signs 02.02. Safety Precautions 02.03. Electric Safety Requirements 02.04. Appendix 03. PRECAUTIONS ..........................9 03.01. Qualification and Safety Regulation Requirements 03.02.

  • Page 3: Preface

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 01. PREFACE Dear users, Thank you for purchasing and using our product. Please read this manual carefully before you install, use, maintain or troubleshoot this product so that you can familiarize yourself with the product and use it correctly. For Outdoor Units or other Indoor Units, please refer to the applicable installation &...

  • Page 4: Safety Precautions

    Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES Warning contents Warning contents Warning contents Warning Contets Warning contents Ensure Proper Professional Only Ensure Proper Ensure Proper Professional Only Professional Only Grounding Grounding Grounding Prohibition signs Prohibition signs Prohibition signs Prohibition signs Ensure Proper Professional Only...

  • Page 5: Electric Safety Requirements

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide CAUTION This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
  • Page 6 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 02.04. Appendix WARNING The following applies to R32 refrigerant systems. • Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized. •...
  • Page 7 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide • Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc.
  • Page 8 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 10. When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off.

  • Page 9: Appendix 03. Precautions

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 03. PRECAUTIONS 03.01. Qualification and Safety Regulation Requirements WARNING • Please carry out the installation according to local standards. • Ask your local dealer or professionals to install the product. This unit must be installed by professional technicians with relevant specialized knowledge. Users MAY NOT install the unit themselves;...

  • Page 10: Precautions For Carrying And Lifting The Air Conditioner

    Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES CAUTION • Keep the Indoor Unit, Outdoor Unit, power cable, and connecting wires at least 1m away from the high-power radio equipment, to prevent electromagnetic interference and noise. For some electromagnetic waves, it is not enough to prevent noise even at a distance of more than 1m.

  • Page 11: Precautions For Installation Sites

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 03.03. Precautions for Installation sites WARNING Installation sites not recommended Do not install or use the air conditioner in the following places A place filled with mineral oil, fumes or mist, like a kitchen. Plastic parts will age and the heat exchanger will become dirty, eventually causing the air conditioner performance to deteriorate or leak water.
  • Page 12 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 03.04.02. Installation space (Unit: mm) Air Outlet Louver Display panel Air outlet >1000 >1000 Return air inlet Ceiling Air outlet Air outlet Air inlet 910X910 (ceiling opening dimension) Floor Model (kW) kW≤8.0 8.0<kW≤10.0 10.0<kW≤14.0...
  • Page 13 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 03.04.03. Recommended Installation Sites Crowded places such as living rooms and offices The air outlet must not face the areas where people frequently spend time, such as sofas and coffee tables. Instead, let the airflow exit from the side for enhanced comfort. Air outlets at corners can be blocked with optional accessories (which can be found in the packaging material) Air outlet blocked...

  • Page 14: Components Overview

    NOTE • Panels, wired controllers, and remote controllers are available in various models. All optional accessories can be purchased from ActronAir • For optional accessories such as wired controllers, please refer to the instructions of the product. • All the figures in the manual explain only the general appearance and functions of the product. The appearance and functions of the product you purchased may not be completely consistent with those listed in the figures.

  • Page 15: Product Dimensions

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 05. PRODUCT DIMENSIONS (Unit: mm) 4-M4 Ø103 Ø105 (Fresh air inlet) 122.5 (with panel) Side air outlet (available for four sides) Suspender installation Ø23 (internal diameter) Drainage pipe Ø25 (OD) E: Connect to refrigerant piping (liquid side) Hex nut (to adjust level) F: Connect to refrigerant piping...

  • Page 16: Accessories

    Accessories Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES List of accessories 06. ACCESSORIES Installation & Owner's Brass nut X 2 Cable tie X 4 Thermal insulation Cardboard X 1 Manual X 1 pipe X 2 Used to determine the IDU Installation Instructions For use in the installation of To tightly secure the drainage...

  • Page 17: Heat Insulation Material Requirements

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide Copper pipe specification(Unit: mm) Model (kW) Piping Liquid side Gas side kW≤5.6 Ø6.35×0.75 Ø12.7×0.75 5.6<kW≤14.0 Ø9.52×0.75 Ø15.9×1.0 For connection of the Indoor Unit refrigerant system, it is Remarks recommended to use a soft copper tube (T2M), with the length selected according to the actual situation.

  • Page 18: Preparations Before Installation

    Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 07. PREPARATIONS BEFORE INSTALLATION 07.01. Unpacking Check Before installation, check whether the packing materials are in good condition, whether the accessories that come with the product are complete, whether the air conditioner is intact, and whether the surfaces of the heat exchanger and other parts are worn.

  • Page 19: Installation Preparations

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 07.03. Installation Preparations 07.03.01. Determine the positions of the ceiling opening, the unit and the lifting screws. (Unit: mm) Cut a hole with a size of 910mm x 910mm according to the outline of the mounting cardboard. S ha pe cutting of the (Unit: mm) mounting cardboard...
  • Page 20 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 2. Use the holes in the mounting cardboard to determine the positions of mounting holes 3. When installing the air conditioner on a new ceiling, affix a piece of cardboard to the main body of the installed air conditioner for reference to determine the size, location, and center of the ceiling opening.

  • Page 21: Indoor Unit Installation

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 08. INDOOR UNIT INSTALLATION CAUTION • Install the air conditioner in a location with sufficient strength to support the weight of the unit. Take reinforcement measures when necessary. • The unit may fall and cause personal injury if the location is not strong enough. •...
  • Page 22 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 2. Confirm the installation hook position according to the installation hook holes located in the four corners of the mounting cardboard. a. Drill four holes with a diameter of Ø12mm and a depth of 50–55mm on the roof according to the specified position, and then embed expansion hooks.
  • Page 23 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 4. For units with fresh air functions, before installing Indoor Units: a. Remove the knockout at the fresh air unit at one side of the unit in advance. Install a fresh air flange at the fresh air unit and secure it with the flange connecting screws.
  • Page 24 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 08.02.02. New rooms and new ceilings For the installation of lifting bolts, a hook can be embedded in the new room. Make sure the hook can withstand 4 times the weight of the Indoor Unit and will not loosen due to shrinkage of the concrete. 2.

  • Page 25: Panel Installation

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 08.03. Panel Installation 08.03.01. Remove the air inlet grille 08.03.01.01. Press the two grille clamps at the same time to lift the grille. Auxiliary buckle Display panel (inner) Grille clamp Decoration panel Louver Air inlet grille Decorative cover plate for corner...
  • Page 26 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 08.03.02. Install the panel Align the decoration panel with the Indoor Unit direction: The following text is engraved on the decoration panel: "Piping side" and "Drainage side". Rotate the decoration panel to align the direction engraved with "Piping side"...
  • Page 27 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide Stiffener Ceiling Do not pull the display panel and its connecting cable during installation; otherwise a fault could occur. 8. If the ceiling is unavailable: Adjust the four locking screws until gentle contact with the sealing material between the panel and the unit body.
  • Page 28 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 08.03.04. Install the air inlet grille 08.03.04.01. Tilt the air inlet grille by 45°, and insert the suspension hooks into the hook holes around the return air inlet of the decoration panel. The air inlet grille can be installed at four directions around the return air inlet.
  • Page 29 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 08.03.05. Install the decorative cover plate for the corners and the display cover plate. 08.03.05.01. Fix the safety sling on the decorative cover plate for corner on the decoration panel. Do not clamp the safety sling when snap-fitting the cover plate Safety sling installation method...

  • Page 30: Refrigerant Connecting Piping Installation

    Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 09. REFRIGERANT CONNECTING PIPING INSTALLATION 09.01. Length and Level Difference Requirements for the Pipe Connections of Indoor Unit and Outdoor Unit . Different Outdoor Units have different requirements for length and level differences for the piping. Refer to the Installation & Owner's Manual attached with the Outdoor Unit.

  • Page 31: Pipe Connection Steps

    nnection Steps ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide uired length of the connecting pipe. Make the connecting pipe using the following method 09.03. Pipe Connection Steps ection" for details). Measure the required length of the connecting pipe. Make the connecting pipe using the following method (see "Pipe Connection"...
  • Page 32 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 09.04.01. Brazing pipes When brazing pipes, fill the pipes with nitrogen. First evenly heat the inner pipes, then the outer pipes, and fill the joints with solder. WARNING • When it is necessary to fill the piping with nitrogen during welding, the pressure must be kept at 0.02MPa using a pressure relief valve.
  • Page 33 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 09.04.03. Nut fastening Align the connecting piping, firstly tighten most of the thread of the connecting nut by hand, and then use a wrench to tighten the last 1-2 turns of the thread as shown in the figure. 2.

  • Page 34: Refrigerant Piping Fixing

    Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 09.05. Refrigerant Piping Fixing Angle iron brackets or round steel hangers should be used for fixing. When the liquid pipe and gas pipe are suspended together, the size of the liquid pipe shall prevail. Pipe outer diameter (mm) ≤20 20~40...

  • Page 35: Pump Outlet

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 09.08. Pump Outlet Pipes on the liquid and air sides have a low temperature during cooling. Take sufficient insulation measures to prevent condensation. Unit Auxiliary heat Onsite piping body insulation pump side belt NOTE...

  • Page 36: Drainage Pipe Installation

    Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 10. DRAINAGE PIPE INSTALLATION CAUTION • Before installation of the condensate pipeline, determine its direction and elevation to avoid intersection with other pipelines to ensure that the slope is smooth and straight. •...

  • Page 37: Installation Of Water Discharge Pipe For The Indoor Unit

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 10.01. Installation of Water Discharge Pipe for the Indoor Unit The drainage pipe can be connected to the water pump outlet by using a PVC pipe, and fastening it with a hose clamp. Then push the thermal insulation pipe to be closely attached to the main body, and finally fasten the hose clamp.
  • Page 38 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES To prevent water from flowing back into the air conditioner when it stops running, avoid installing the drainage pipe in a way that slopes upwards for a long distance. To lift the drainage height (the distance between the highest point and the lower side of the Indoor Unit is not greater than 1m), raise the required height over a short distance and connect the drainage pipe to the main drainage pipe downwards.

  • Page 39: Water Discharge Test

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide Air outlet (Unit: mm) Connection method of the drainage pipe: Slope > 1/100 Air outlet (Unit: mm) The net height of Slope > 1/100 the drainage pipe 800~1000 ≤ 1200 The net height of the drainage pipe 800~1000 ≤...
  • Page 40 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES • Turn off the power supply, remove the water, and put the water cover assembly back in its original place. Drainage pipe Test water outlet Master unit Water cover assembly Drain pan Water injection pipe...

  • Page 41: Electrical Connection

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 11. ELECTRICAL CONNECTION DANGER • The power supply must be cut off before any electrical work is carried out. Do not conduct electrical work when the power is on; otherwise, it may cause serious personal injury. •...

  • Page 42: Electrical Characteristics

    Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 11.01. Electrical Characteristics Electric specifications of the Indoor Unit Unit power (kW) Frequency (Hz) Voltage (V) MCA (A) MFA (A) FLA (A) power input (W) 0.27 0.22 0.27 0.22 0.52 0.41 0.33 0.26 0.42...

  • Page 43: Wiring

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 11.03. Wiring 11.03.01. Open the Indoor Unit's electric control box cover Remove the two screws at the positions shown in the figure; 2. Pull the bottom end of the electric control box cover horizontally outward; Remove the electric control box cover by pulling downwards.
  • Page 44 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 11.03.03. Power cable connection 11.03.03.01. Connection between the power cable and power supply terminal The power supply terminal of the Indoor Unit is fixed to Main control board the main control board, and the power cable is con- nected to the power supply terminal labeled "CN1"...
  • Page 45 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 11.03.03.02. Power cable system connection Power cable system connection depends on the forms of communication between the Indoor Unit and Outdoor Unit. For the HyperLink communication form with an independent power supply, Indoor Units are allowed to have an independent power supply.
  • Page 46 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES B. Indoor Units are provided with uniform power supply*, which are wired as follows: HyperLink communication with the uniform power supply: Power supply for IDU L1+La+Ln ≤ 2000m Wire diameter: 0.75mm Communication wire ×...
  • Page 47 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide CAUTION • When the Indoor Units are provided with a uniform power supply, if the Indoor Units in the same refrigerant system are ECOFLEX Indoor Units, then Indoor Units and Outdoor Unit can communicate either via HyperLink with a uniform power supply, or via P/Q communication.
  • Page 48 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 11.03.04.02. Table of selection of communication line diameter One controller to one Indoor Unit One-to-more (Two (centralized Function Indoor Unit and Outdoor Unit communication controllers controller) to one Communication Indoor Unit) Communication HyperLink HyperLink...
  • Page 49 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 11.03.04.03. Indoor Unit and Outdoor Unit communication a. HyperLink communication (with independent power supply) Single unit: HyperLink communication is a new type of Indoor Unit and Outdoor Unit communication technology. When the Indoor Units are provided with independent power supplies, use 2×1.5mm communication cables.
  • Page 50 For other connection methods (tree topology, star topology, ring topology), please refer to the Installation Manual of Outdoor and Controller and For further assistance contact ActronAir Technical Support Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - 4 WAY CASSETTE...
  • Page 51 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide CAUTION • If the total distance is ≤ 200m and the total number of Indoor Units is ≤ 10 sets, the valve is powered and controlled by the master Outdoor Unit. •...
  • Page 52 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES System: The HyperLink communication line with a uniform power supply between Indoor Unit and Outdoor Unit can reach a length of up to 2000 meters, supporting any topology connection. The following figure shows a serial connection: Power supply for IDU Communication wire Circuit breaker...
  • Page 53 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide System: The maximum total length of the P/Q communication cable of the Indoor Unit and Outdoor Unit can be up to 1200m, and can be connected in serial, as shown in the figure below: Power supply for IDU ×...
  • Page 54 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES System: The maximum total length of the P/Q/E communication cable of the Indoor Unit and Outdoor Unit can be up to 1200m, and can be connected in serial, as shown in the figure below: Power supply for IDU ×...
  • Page 55 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide CAUTION Two wired controllers of the same model can be used to control one Indoor Unit at the same time. In this case, you need to set one controller to be the master and the other to be the slave. For details, see the wired controller manual.
  • Page 56 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES B. Achieving centralized control of the Indoor Unit through D1D2 communication The D1D2 communication line can also be connected to the centralized controller to achieve centralized control of the Indoor Unit, as shown in the figure below: IDU 2# IDU 1# IDU n#...
  • Page 57 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 11.03.05.02. Function module adapter board connection Function expansion boards can communicate with the main control board through the adapter board. You can use one or both of the two function expansion boards. The wiring diagrams are as follows: Use function expansion board 1# Use function expansion board 2# CN18...
  • Page 58 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 11.03.06. Reclose the electric control box cover Straighten out the connecting wires and lay them flat, and close the electric control box cover again. CAUTION • Do not cover the electric control box during power-on. •...

  • Page 59: Application Control

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 12. APPLICATION CONTROL 12.01. Error Codes and Definitions In the following circumstances (warning failures excluded), please stop the air conditioner immediately, cut off the power switch and contact the local air conditioner customer service center. The error code is displayed on the display panel and the wired controller display.
  • Page 60 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES Error code Error Abnormal communication between the Indoor Unit main control board and 1# function expansion board Abnormal communication between the Indoor Unit main control board and 2# function expansion board Abnormal communication between the Indoor Unit main control board and adapter board Air inlet temperature of the Indoor Unit is too low in heating mode Air inlet temperature of the Indoor Unit is too high in cooling mode...

  • Page 61: Operating Status Codes And Definitions (Non-Error)

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide Error code Error Unit model code not set Horsepower code not set Horsepower code setting error AHU Kit fan control input signal DIP setting error Address code not detected Motor failed more than once IPM (fan module) overcurrent protection Instantaneous overcurrent protection for phase current Low bus voltage fault...

  • Page 62: Spot Check Description

    Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 12.03. Spot Check Description Use the bi-directional communication wired controller (for example,MWC-B01CS) to activate the spot check function in the following steps: On the main page, hold " " and " " for 2s to enter the query page.

  • Page 63: Before Test Run Check

    ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 13. TEST RUN 13.01. Before test run check • Indoor Units and the Outdoor Unit are properly installed. • The piping is correct, and the refrigerant piping system has been checked for leakage. •...

  • Page 64: Inspection After Installation

    Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 13.05. Inspection After Installation To ensure a comfortable indoor environment, please run down through the list to check whether the installation of the air conditioner meets the requirements. Insert a "✕" for Fail and a "✓" for Pass. Check Result Check Item Check Criteria...
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  • Page 68 ©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 R32 SERIES - 4 WAY CASSETTE INDOOR...

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