ActronAir ECOFLEX MINI VRF R32 Series Installation And Commissioning Manual
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ActronAir ECOFLEX MINI VRF R32 Series Installation And Commissioning Manual

High static indoor unit
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ECOFLEX MINI VRF R32 SERIES
High Static Indoor Unit
Installation and Commissioning Guide
Model Numbers
MHD-056CS
MHD-071CS
MHD-080CS
MHD-090CS
CAUTION:
The system is charged with flammable
refrigerant, safety checks are necessary to
ensure that the risk of ignition is minimised.
MHD-112CS
MHD-125CS
MHD-140CS
MHD-160CS
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 R32 Series

  • Page 1 ECOFLEX MINI VRF R32 SERIES High Static Indoor Unit Installation and Commissioning Guide Model Numbers MHD-056CS MHD-112CS MHD-071CS MHD-125CS MHD-080CS MHD-140CS MHD-090CS MHD-160CS IMPORTANT NOTE: Please read the R-32 Safety Manual and this manual carefully CAUTION: before installing or operating your air conditioning unit.

  • Page 2: Table Of Contents

    14. Settings ............................56 14.01. ESP Setting 15. Test Run ............................61 15.01. Checklist Before Test Run 15.02. Indoor Unit 15.03. Outdoor Unit Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 3: Preface

    • Please retain this manual for future reference. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 4: Safety Warning

    Safety Precautions [ Danger ] [ Danger ] Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209 During thunderstorms, disconnect the main power switch. Otherwise, lightning may During thunderstorms, disconnect the main power switch. Otherwise, lightning may...

  • Page 5: Safety Precautions

    Safety Warning this International Standard. Safety Warning Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 6: Electric Safety Requirements

    The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially flammable atmospheres. technician is aware of potentially flammable atmospheres. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209 Safety Warning...
  • Page 7 Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 8 8. Do not overfill cylinders. (No more than 80 % volume liquid charge). 9. Do not exceed the maximum working pressure of the cylinder, even temporarily. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 9 International Standard. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 10: Appendix 03. Precautions

    After the refrigerant leakage is repaired, do not start the product until the maintenance personnel confirms that the leakage is well repaired. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 11 If any supplemental unit is employed to detect leaked refrigerant, such unit shall also apply this marking or be accompanied by such instructions. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 12: Precautions For Carrying And Lifting The Air Conditioner

    Please contact a dealer for assistance. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 13: Recommended Installation Sites

    In case of conditions in the ceiling exceed 30°C and relative humidity of 80%, or when fresh air is inducted into the ceiling, the additional insulation is required (minimum 10 mm thickness polyethylene foam). Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 14: Installation Layout

    Please refer to the actual product. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 15: Product Dimensions

    1095 3/4-16 UNF 7/16-20 UNF 5.6<kW≤9.0 1050 1095 7/8-14 UNF 5/8-18 UNF 9.0<kW≤16.0 1400 1200 1290 1306 1445 7/8-14 UNF 5/8-18 UNF Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 16: Accessories

    • Air filters are divided into primary efficiency filters, medium efficiency filters, and high efficiency filters. High efficiency filters can be customized by the dealer. Primary efficiency filter Medium efficiency filter High efficiency filter Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 17: Accessories Available To Be Purchased Separately

    If the insulation layer is made of other materials, the thickness of the insulation shall be obtained according to design requirements or calculations. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 18: Preparations Before Installation

    When installing it on the outside of the air return pipe, tighten the screw into the screw hole on the filter. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 19: Indoor Unit Positioning

    Ceiling treatment: Reinforce the ceiling pedestal to make sure that the ceiling is level and to prevent ceiling vibrations. b. Cut off and dismantle the ceiling pedestal. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 20: Indoor Unit Installation

    40mm-80mm, so as to facilitate the pipe connection and assembly and disassembly of the electrical appliance cover. Drainage pipe Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 21 1/100 towards the drainage side. Do not tilt it towards the non-drainage side. Drain side Tilt by 1/100 Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 22: Air Inlet Panel For Air Return Plenum

    • The connecting pipes must be wrapped with thermal insulation materials when they are installed. • In the event of refrigerant gas leakage during operation, please ventilate immediately. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 23: Pipe Layout

    • When mechanically bending the pipe, the pipe bender inserted into the copper pipe must be cleaned. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 24 Ø6.35 Ø9.52 12.4 12.0 Cone Ø12.7 15.8 15.4 Ø15.9 19.1 18.6 Connecting pipe Ø19.1 23.3 22.9 Clamp handle Red arrow mark Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 25 Excessive torque will damage the flared mouth and nut, and too small torque cannot tighten the nut, which will cause refrigerant leakage. Please refer to the above table to determine the appropriate tightening torque. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 26: Refrigerant Piping Fixing

    LFL of the refrigerant and shall be calibrated to the refrigerant employed and the appropriate percentage of gas (25 % maximum) is confirmed. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 27 Thermal insulation materials directly exposed to the open air will degrade and lose their insulating properties Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 28: Drainage Pipe Installation

    flat and smooth PVC drain pipe (outer diameter: Outlet of the Cable Drain 25mm) and insulation pipe drain pan hose Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 29 The drainage pipe shall be equipped with a support point every 1.5-2.0m. Air outlet Drain pipe Tilt by 0.8-1.0m 1/100 Tilt by 1/100 Within 20m Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 30 Inconsistent drainage directions must be prevented for horizontal drain pipes to avoid adverse slopes and poor drainage. Three-way Drain pipe Drain pipe Drain pipe drainage Three-way Three-way drainage drainage Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 31: Water Discharge Test

    For details on the water cover assembly and the water injection pipe, see figure below. Water cover assembly Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 32: Air Duct Installation

    After installation, carry out the air tightness test on the air duct to ensure its air leakage complies with the relevant council, state/federal codes, regulations and building code standards. Aluminum foil tape Insulation materials Soft air duct Air outlet Return air Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 33 Air vent position wrong Air vent size and position correct Air vent size correct Air outlet Return air inlet Air vent position correct Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 34: Electrical Connection

    • Lightning rod ground wire or telephone ground wire: In the event of lightning strikes, abnormal ground potential may rise. • After all wiring is completed, check carefully before turning on the power supply. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 35: Electrical Characteristics

    CAUTION All weak point connection points meet SELV, such as X1, X2, P, Q, E, M1, M2, CN18, CN55 etc Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 36: Wiring

    “L” and “N”, and the earth wires is directly connected to the electric control box sheet metal part. Electric control box sheet metal Power input part Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 37 Note: The main power supply is earthed near the cable clamp. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 38 30 sets, and a maximum of only two repeaters may be installed*. • For each additional 10 indoor units or 200 m of communication wire length, a repeater shall be installed. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 39 Indoor unit (n-1)# Indoor unit n# ··· CN22 No. 2 to No.(n-2)# Indoor unit Use shielded cables and earth the shield layer. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 40 2. The communication cables must be connected in Units are communication serial. non-ECOFLEX series PQE cables must be 3-core and PQ non-polar. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 41 Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 42 Unit and Outdoor Unit can reach up to 600 meters, supporting any connection topology. The following figure shows a serial connection: Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 43 IDU : Indoor Unit For other connection methods (tree topology, star topology, ring topology), please refer to the technical manual or consult technical personnel. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 44 M1 M2 Connect to ODU M1M2 (HyperLink) CAUTION Do not connect the HyperLink communication line to the PQ or D1D2 communication line. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 45 Main control board Electric control box sheet metal part Connect to the ODU PQ Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 46 Main control board Electric control box sheet metal part Connect to the ODU PQE Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 47 One controller to one IDU (Master-slave wired controller needs to be set. For details, see the wired controller manual.) L1 ≤ 200m, L2+L3 ≤ 200m. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 48 Indoor Unit wired controller. • To enable two-to-multiple functions, wired controllers must be of the same model. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 49 The display panel is connected to the main control board through a 4-core cable, and is connected to the “CN30” socket of the main control board, as shown in the following figure: CN30 Main control Display panel board Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 50 For the function introduction of the function module adapter board, function expansion board 1#, and function expansion board 2#, please refer to the function module manual. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 51 • When covering the electric control box, arrange the cables carefully and do not clip the connecting wires on the electric control box cover. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 52: Error Codes And Definitions

    Abnormal communication between the main wired controller and secondary wired controller Abnormal communication between the Indoor Unit main control board and 1# function expansion board Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 53 Horsepower code not set Horsepower code setting error AHU Kit fan control input signal DIP setting error Address code not detected Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 54: Operating Status Codes And Definitions (Non-Error)

    • When the main control program is being upgraded, make sure that the Indoor Unit and Outdoor Unit remain powered on. Otherwise, the upgrading process will stop. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 55: Spot Check Description

    T2B heat exchanger gas pipe temperature [―――] is displayed Actual set humidity RHs Actual RH indoor humidity Actual fresh air processing unit TA air supply temperature Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 56: Esp Setting

    Parameter code Parameter name Parameter range Default value Remarks Initial static 00: Not reset; pressure 00/01 01: Reset detection Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 57 • SSL, SL, L, M, H, SH, and SSH represent fan speeds from level 1 to level 7. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 58 Static pressure settings power W*100 56 (2.0HP) 71 (2.5HP) 80 (3.0HP) 90 (3.2HP) 112 (4.0HP) 125 (4.5HP) 140 (5.0HP) 160 (5.7HP) Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 59 2750 2950 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 Air flow rate [m Air flow rate [m Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 60 For other Indoor Unit parameter settings, please refer to the manual of the wired controller. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 61: Test Run

    Internal wiring Visually check the electrical component box and the inside of the unit for loose connec- tions or damaged electrical components. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...

  • Page 62: Indoor Unit

    The fan, noise and condensation do not affect the neighbors. • There is no refrigerant leakage. NOTE Refer to the “Symptoms That Are Not Faults” in the Owners Manual. Installation & Commissioning Guide ECOFLEX MINI VRF R32 SERIES - HIGH STATIC INDOOR Doc. No. 9590-5028-11 Ver. 1 240209...
  • Page 63 THIS PAGE WAS INTENTIONALLY LEFT BLANK...
  • Page 64 ©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 - HIGH STATIC INDOOR...

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