ActronAir ECOFLEX MINI VRF Series Installation And Commissioning Manual

Wall-mounted indoor unit

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Installation and commissioning manual (90 pages)

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Installation and commissioning manual (64 pages)

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ECOFLEX MINI VRF R-32 SERIES

Wall-Mounted Indoor Unit

Installation and Commissioning Guide

Model Numbers

MHW-015CS

MHW-022CS

MHW-028CS

CAUTION:

The system is charged with flammable

refrigerant, safety checks are necessary to

ensure that the risk of ignition is minimised.

MHW-035CS

MHW-045CS

MHW-056CS

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 Wall-Mounted Indoor Unit Installation and Commissioning Guide Model Numbers MHW-015CS MHW-035CS MHW-022CS MHW-045CS MHW-028CS MHW-056CS 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
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES Table of Contents 01. Preface ............................3 02. Safety Warning ..........................4 02.01. Warning Signs 02.02. Safety Precautions 02.03. Electric Safety Requirements 02.04. Appendix 03. PRECAUTIONS ..........................10 03.01. Qualification and Safety Regulation Requirements 03.02.
Page 3: Preface
ECOFLEX MINI VRF R-32 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 Warning
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 02. Safety Warning Please thoroughly read and ensure that you fully understand the safety precautions (including the signs and symbols) in this manual, and follow relevant instructions during use to prevent damage to health or property. This symbol shows that this appliance used a flammable refrigerant.
Page 5: Safety Precautions
Grounding Prohibition signs No Flammable No Open Fire No Acid or No Strong Current ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide Materials Alkali Materials 02.02. Safety Precautions No Flammable No Strong Current No Open Fire No Acid or Safety Precautions Materials Alkali Materials...
Page 6: Electric Safety Requirements
Electric Safety Requirements Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES Electric Safety Requirements Electric Safety Requirements [ Warning ] 02.03. Electric Safety Requirements [ Warning ] [ Warning ] WARNING The air conditioner shall be installed according to the local wiring specifications. •...
Page 7 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 02.04. Appendix WARNING The following applies to R-32 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 8 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES • If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used.
Page 9 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide • DD.12 Decommissioning: Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice 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 10: Appendix 03. Precautions
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 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 11: Precautions For Carrying And Lifting The Air Conditioner
ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 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 12: Precautions For Installation Sites
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 03.03. Precautions for Installation sites WARNING 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 13 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide Choose a site that fully complies with the following conditions and user requirements to install the air conditioning unit: There is enough space for installation and maintenance. 2. Airflow in/out of the machine is not obstructed, and the external air exerts minimum impact. It is easy to supply airflow to every corner of the room.
Page 14: Components Overview
Panel NOTE • 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 R-32 SERIES Installation and Commissioning Guide 05. Product Dimensions Right pipe Left pipe knockout knockout Drainage pipe knockout Drainage pipe knockout Unit: mm Capacity (kW) kW≤3.6 3.6<kW≤5.6 5.6<kW≤8.0 1200 1025 1186 05.01. Installation Distance ≥ 30 ≥ 50 ≥...
Page 16: Pipe Routing Direction
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 05.02. Pipe Routing Direction The refrigerant pipe can be routed from four directions: left, left rear, right, and right rear; drainage pipe can be routed from six directions: left, left rear, right, right rear, upper left, and upper right. The upper left and upper right directions are only applicable to drainage pipe of the water pump.
Page 17: Instructions On Cutting Left And Right Knockouts
ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 05.03. Instructions on Cutting Left and Right Knockouts Hole shared by copper pipe and cable (FCU models) Hole shared by copper pipe and cable (refrigerant models) Cable hole (non-North America refrigerant models) Cable hole (non-North America refrigerant models) 05.04.
Page 18: Accessories
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 06. Accessories 06.01. Standard Accessories List of accessories Installation & Owner’s Brass nut X 2 Drainage hose X 1 Installation Rubber sleeve of Manual X 1 For use in the installation board X 1 expansion screw X 4 Indoor Unit Installation...
Page 19: Preparations Before Installation
ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide CAUTION The materials and specifications of insulation materials must meet national or industry standards. 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, whether the surfaces of the heat exchanger and other parts have become worn, and whether there are oil stains on the check valve of the unit.
Page 20: Pipe Layout
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 08.02. Pipe Layout Bend the pipes or punch holes in the wall as needed. The deformed pipe area must not exceed 15% of the total area. A protective casing should be installed at the wall or floor hole. The weld joint must not be inside the casing. The drill hole on the external wall must be sealed and tightly wrapped with a binding tie to prevent impurities from entering the pipe.
Page 21: Pipe Connection
ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 2. The check valve of the Outdoor Unit is completely closed when leaving the factory. Unscrew brass nuts from the check valve in each connection, and connect the flared tube within 5 minutes. When the brass nuts at the check valve are removed and placed somewhere for too long, dust and other sundries may enter the pipeline system and cause failures after extended periods of operation.
Page 22 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 08.04.02. Flaring To cut the piping with a pipe cutter, rotate the pipe cutter repeatedly. Put the pipe into the connecting nut flaring, and both the gas pipe and liquid pipe of the Indoor Unit are connected by flaring.
Page 23: Refrigerant Piping Fixing
ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide Handle Yoke Cone Copper pipe Clamp Red arrow mark handle Protective nut Indoor unit tubing Flare nut Pipings CAUTION • Excessive torque can break nut on installation conditions. • When flared joints are reused indoors, the flare part should be re-fabricated. Pipe size (mm) Tightening torque [ N.m (kgf.cm)] Ø6.35...
Page 24: Vacuum Pumping
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 08.06. Vacuum Pumping Connect the refrigerant piping to the gas and liquid pipes of the Outdoor Unit, and use a vacuum pump to evacuate the gas and liquid pipes of the Outdoor Unit at the same time. Outdoor Check valve Unit...
Page 25 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide NOTE • Be sure to use a thermal insulation material with a heat resistance of 120°C or higher for the gas pipe. • The attached insulation material for the part of the Indoor Unit where the pipe connects must undergo heat insulation treatment that leaves no gaps.
Page 26 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES Installation and insulation tips Outer tape Heat insulation material a. Insulate the gas pipe and the liquid pipe separately. Correct Wrong Liquid pipe Gas pipe The gas pipe and the liquid pipe are insulated together, Heat insulation material which reduces the heating or cooling effects.
Page 27 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide Steps to repair protection sponge: (see the figure below) Straight joint Protection of copper pipe sponge 300mm Copper pipe Protection sponge for repair 500mm Cut a section of protection sponge longer than the gap, pull open the two ends, insert the protection sponge, and apply glue to the joint.
Page 28: Drainage Pipe Installation
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 09. 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 29 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 09.01.01. Selection of drainage outlet Drainage outlet of drain pump Natural drainage outlet CAUTION For models without drain pumps, a water outlet pipe is connected to the natural drainage outlet when the unit leaves factory.
Page 30 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES Method to discharge water with the drain pump: The pipe discharge faces Pipe fixture clamp downward to 500~1000 500~1000 avoid intake of foreign matters. The drainage pipe should have a slope of 1/100 or more. Ceiling Vertical Water pump suction...
Page 31: Extend The Drainage Pipe
ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide The end of the Upward Water accumulates drainage hose is immersed in water Water Water leaks Water leaks The drainage pipe deﬂects leaks and generates air resistance Drainage outlet Make sure the drainage hose is inclined downward.
Page 32: Lay And Insulate Pipes
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES CAUTION Indoor parts of the drainage pipe shall be insulated to prevent condensation, and protective sleeves should be thicker than 10mm. If the pipe is not wholly insulated, be sure to rebind the cut part. Use glue or buckles to connect the joints and cuts of the thermal insulation pipe, and make sure it is at the top of the pipe.
Page 33: Install Sealant And Wall Hole Sleeve Cover
ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide Upper hook Installation board Buﬀer Drainage hose Refrigerant piping Lower hook Drainage pipe 09.05. Install sealant and wall hole sleeve cover. 1. Arrange the wrapped pipes. 2. Apply the sealant to the gap between the pipe and wall and press it tightly. 3.
Page 34: Electrical Connection
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 10. 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 35: Electrical Characteristics
ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 10.01. Electrical Characteristics Electric specifications of the Indoor Unit Unit power (kW) Frequency (Hz) Voltage (V) MCA (A) MFA (A) FLA (A) power input (W) 0.28 0.22 0.29 0.23 0.36 0.29 0.39 0.31 216~253...
Page 36: Wiring
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 10.03. Wiring 10.03.01. Open the Indoor Unit’s electric control box cover Loosen the screws on the right side of the electric control box cover and remove the electric control box cover. Screw Electric control (one)
Page 37 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 10.03.03. Power cable connection 10.03.03.01. 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 38 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 10.03.03.02. 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 39 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 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 40 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 3. P/Q/E communication: Power supply for IDU Communication wire × × Circuit breaker Power cable Distribution box Distribution box Build-out resistor Master ODU IDU 1# IDU (n-1)# IDU n# CN22 ··· 2-(n-2)# IDU Use shielded cables and ground the shield layer.
Page 41 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 10.03.04. Communication line connection 10.03.04.01. Selection of communication method for Indoor Units Equipped with independently developed HyperLink (M1M2) communication, ECOFLEX series Indoor Units also preserve the previous RS-485 (PQE) communication method. They are compatible with non-ECOFLEX Indoor Units.
Page 42 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES CAUTION • Please select the communication line according to the requirements in the above reference table. Use shielded cables for communication when strong magnetism or interference is present. • On-site wiring must comply with the relevant regulations of the local country/region and must be completed by professionals.
Page 43 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide System: The HyperLink communication line with an independent power supply between the Indoor Unit and Outdoor Unit can reach up to 600 meters, supporting any connection topology. Master ODU Power cable Communication wire CN23 Power supply for IDU...
Page 44 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 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 45 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 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...
Page 46 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 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 47 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 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 48 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 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 49 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 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 50 Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 10.03.05.02. 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 51 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 10.03.06. 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 52: Application Control
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 11. Application Control 11.01. 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 53 ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 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 54: Operating Status Codes And Definitions (Non-Error)
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES Error code 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 High bus voltage fault Phase current sample bias error Motor and Indoor Unit are unmatched IPM and Indoor Unit are unmatched...
Page 55: Spot Check Description
ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 11.03. 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 56: Test Run
Installation and Commissioning Guide ECOFLEX MINI VRF R-32 SERIES 12. Test Run 12.01. Before the Test Run, Make Sure That • Indoor Units and the Outdoor Unit are properly installed. • The piping is correct, and the refrigerant piping system has been checked for leakage. •...
Page 57: Inspection After Installation
ECOFLEX MINI VRF R-32 SERIES Installation and Commissioning Guide 12.05. 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 60 ©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 - HIGH WALLS...

This manual is also suitable for:

Mhw-015cs Mhw-022cs Mhw-028cs Mhw-035cs Mhw-045cs Mhw-056cs

ActronAir ECOFLEX MINI VRF Series Installation And Commissioning Manual

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