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ECOFLEX MINI VRF R32 SERIES
Two-way Cassette
Installation and Commissioning Guide
Model Numbers
MTC-022CS
MTC-028CS
MTC-036CS
MTC-045CS
MTC-056CS
MTC-071CS
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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Related Manuals for ActronAir ECOFLEX MINI VRF MTC-022CS
Summary of Contents for ActronAir ECOFLEX MINI VRF MTC-022CS
- Page 1 ECOFLEX MINI VRF R32 SERIES Two-way Cassette Installation and Commissioning Guide Model Numbers MTC-022CS MTC-028CS MTC-036CS MTC-045CS MTC-056CS MTC-071CS IMPORTANT NOTE: Please read the R-32 Safety Manual and this manual carefully CAUTION: before installing or operating your air conditioning unit. The system is charged with flammable Information in this manual is to be used in conjunction with refrigerant, safety checks are necessary to...
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Page 2: Table Of Contents
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES Table of Contents 01. Preface ............................4 02. Safety Warning ..........................4 02.01. Warning Signs 02.02. Safety Precautions 02.03. Electric Safety Requirements 02.04. Appendix 03. Installation Precautions ....................... 10 03.01. Qualification and Safety Regulation Requirements 03.02. - Page 3 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide Table of Contents 10. Application Control ........................51 10.01. Error Codes and Definitions 10.02. Operating Status Codes and Definitions (Non-Error) 10.03. Spot Check Description 11. Test Run ............................55 11.01. Test Run 11.02.
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Page 4: Preface
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 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 5: Safety Precautions
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide Warning contents Warning contents Warning contents Warning Contents 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 6: Electric Safety Requirements
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 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 7: Appendix
ECOFLEX MINI VRF R32 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 R32 SERIES • 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 9 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 5. If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system. 6. Make sure that cylinder is situated on the scales before recovery takes place. 7.
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Page 10: Installation Precautions
Installation Precautions Installation Precautions Installation Precautions Qualification and Safety Regulation Requirements Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES Qualification and Safety Regulation Requirements Qualification and Safety Regulation Requirements [ Warning ] 03. INSTALLATION PRECAUTIONS [ Warning ] Please carry out the installation according to local standards. [ Warning ] Ask your local dealer or professionals to install the product. - Page 11 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide Before and after installation, exposing the unit to water or moisture will cause electrical short circuit. Before and after installation, exposing the unit to water or moisture will cause electrical Do not store the unit in a humid basement or expose it to rain or water. •...
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Page 12: Precautions For Carrying And Lifting The Air Conditioner
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES NOTE This unit is equipped with a refrigerant leak detector for safety. To be effective, the unit must be electrically powered at all times after installation, other than when servicing. Precautions for Carrying and Lifting the Air Conditioner Precautions for Carrying and Lifting the Air Conditioner If any supplemental unit is employed to detect leaked refrigerant, such unit shall also apply this marking or be accompanied by such instructions. -
Page 13: Recommended Installation Sites
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 03.04. Recommended Installation Sites It is recommended to install the air conditioner according to the design drawing of the HVAC engineer. The selection principle for the installation site is as follows: •... - Page 14 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES Panel Ceiling 1390mmX640mm (ceiling opening dimension) Floor Recommended Installation Sites Crowded places such as living rooms and offices The unit is usually installed in a concealed manner, with air supplied in the side and re- turned at the bottom.
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Page 15: Parts
* To be purchased separately NOTE Items showing as optional 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 16: Product Dimensions
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 03.06. Product Dimensions 1172 (Unit: mm) 1430 Panel dimensions 1430 Ceiling hole dimensions 1390 Ceiling hole Lifting bolt distance 1207 (1390×640) Unit dimensions 1172 Fresh air connector Connect to drainage pipe (inner diameter Ø32) Fitting water pipe (outer diameter Ø34) -
Page 17: Installation Materials
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 04. INSTALLATION MATERIALS 04.01. Accessories List of Accessories Installation & Owner’s Brass nut X 2 Drainage pipe X 1 Cable tie X 5 Thermal insulation pipe Manual X 1 For use in the insallation Unavailable for units with To tighten the drainage Indoor Unit Installation... -
Page 18: Heat Insulation Material Requirements
Customers are free to choose to buy wired controllers, display boxes, remote controllers (with a seven-speed Customers are free to choose to buy wired controllers, display boxes, remote controllers (with a seven-speed wind controller) and other optional accessories. wind controller) and other optional accessories. wind controller) and other optional accessories. -
Page 19: Preparations Before Installation
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 05. PREPARATIONS BEFORE INSTALLATION 05.01. Unpacking Check Before installation, check whether the packing materials are in good The red dot bulges condition, whether the accessories that come with the product are complete, whether the air conditioner is intact, whether the surfaces of the Sealing heat exchanger and other parts have become worn, and whether there are... -
Page 20: Determine The Positions Of The Ceiling Opening, The Unit And The Lifting Screws
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 05.03. Determine the positions of the ceiling opening, the unit and the lifting screws Cut a hole with a size of 1390mm x 640mm according to the outline of the panel installation stencil. Use M10 lifting bolts at the (Unit: mm) position for lifting bolts. - Page 21 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 2. Use 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.
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Page 22: Indoor Unit Installation
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 06. INDOOR UNIT INSTALLATION WARNING 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. Unstable installation may cause the unit to fall and cause an accident. -
Page 23: Indoor Unit Installation
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 06.03. Indoor Unit Installation CAUTION The indoor unit must not be too close to the ceiling. It shall be installed level or at an angle within 1° towards the drainage side. (For units without a drain pump, ensure a slope of 1/100 towards the drainage side. -
Page 24: Refrigerant Connecting Piping Installation
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 07. REFRIGERANT CONNECTING PIPING INSTALLATION 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. CAUTION During the installation of the connecting pipes, do not allow air, dust, and other debris to penetrate the piping system, and make sure the interior of the pipes is dry. -
Page 25: Pipe Connection Steps
Measure the required length of the connecting pipe. Make the connecting pipe using the following m (see "Pipe Connection" for details). ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide Connect the IDU first, then connect the ODU. Before tightening the flare nut, apply refrigeration oil on the inner and outer surface of the pip 07.02. - Page 26 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 07.03.01. 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 welding material. 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.
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Page 27: Refrigerant Piping Fixing
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 07.03.03. 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 28: Vacuum Pumping
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 07.05. Vacuum Pumping Connect the refrigerant piping to the gas and liquid pipes of the Outdoor Unit, and use a Outdoor Check valve Unit vacuum pump to evacuate the gas and liquid Indoor Unit pipes of the Outdoor Unit at the same time. -
Page 29: Drainage Pipe Installation
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 08. 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 30 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES Drainage outlet for water pump The thermal insulation pipe is PVC water discharge pipe closely attached to the unit (outer diameter: 25mm) body. Insulation casing Thermal insulation pipe There is a large gap between the thermal insulation pipe PVC water discharge pipe and the unit body, resulting...
- Page 31 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide ⑤ The end of the drainage pipe must be more than 50mm above the ground or from the base of the water discharge slot. In addition, do not submerge it in water. To discharge the condensed water directly into a ditch, the water discharge pipe must bend upwards to form a U-shaped water plug to stop odors from entering the room via the water discharge pipe.
- Page 32 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES How to discharge water without the drain pump: Method to connect the drainage pipe for a single unit (Unit: mm) 800~1000 Slope > 1/100 Drainage pipes from multiple units are connected to the main drainage pipe to be discharged through the sewage pipe. (Unit: mm) Air outlet Height difference as...
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Page 33: Water Discharge Test
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 08.02. Water Discharge Test ① Before the test, make sure that the water discharge pipeline is smooth, and check that each connection is properly sealed. ② Conduct the water discharge test in a new room before the ceiling is plastered. •... -
Page 34: Electrical Connection
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 09. 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. The air conditioning unit must be grounded reliably and must meet the requirements of the local country/region. -
Page 35: Electrical Characteristics
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 09.01. Electrical Characteristics Electric specifications of the Indoor Unit Unit power (kW) IFM power input Frequency (Hz) Voltage (V) MCA (A) MFA (A) FLA (A) 0.47 0.38 0.47 0.38 0.52 0.42 216~253 0.59 0.47... -
Page 36: Wiring
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 09.03. Wiring Open the IDU’s electric control box cover. ① Remove the two screws at the positions shown in the figure; ② Pull the bottom end of the electric control box cover horizontally outward; ③... -
Page 37: Power Cable Connection
Power cable connection ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide Connection between the power cable and power supply terminal 09.04. Power cable connection Main control board The power supply terminal of the IDU is fixed on the main 09.04.01. - Page 38 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 09.04.02. 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 R32 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 ×...
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Page 40: Wiring Diagram Of Main Power Supply
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 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 41: Communication Line Connection
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 09.06. Communication line connection 09.06.01. 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. Pay attention to the type of Indoor Unit you have purchased before connecting communication lines. -
Page 42: Indoor Unit And Outdoor Unit Communication
Installation and Commissioning Guide ECOFLEX MINI VRF R32 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 R32 SERIES Installation and Commissioning Guide System: The maximum total length of the HyperLink communication line of the Indoor Unit and Outdoor Unit with the valve control upon power-off function can be up to 600m, and any topology connection is supported.
- Page 44 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES b. HyperLink communication (function of valve control upon power-off is unavailable) Single unit: When the Indoor Units are provided with uniform power supply, it is not necessary for the HyperLink communication line to provide EEV control upon power-off for Indoor Units. In this case, use 2×0.75mm2 communication cables.
- Page 45 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide c. P/Q communication Single unit: Use a shielded cable for the P/Q communication and properly ground the shield layer. P and Q ports are located at terminal block "CN6" of the main control board. There is no distinction between negative and positive electrodes.
- Page 46 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES d. P/Q/E communication If some of the Indoor Units in the same refrigerant system are non-ECOFLEX series, it is required to connect "P", "Q", and "E" for P/Q/E communication. Single unit: Use a shielded cable for the P/Q/E communication and properly ground the shield layer. P, Q, and E ports are located at terminal block "CN6"...
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Page 47: X1/X2 Communication Cable Connection
Use only shielded cables for P/Q or P/Q/E communication. Otherwise, the IDU and ODU communication may be affected. A matching resistor needs to be added to the last IDU on the PQ (in the accessory bag of the ODU). ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide X1/X2 communication cable connection 09.08. -
Page 48: D1D2 Communication Line Connection (Limited To Outdoor Unit And System Configuration)
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 09.09. D1D2 communication line connection (limited to Outdoor Unit and system configuration) A. Achieving one-to-multiple and two-to-multiple functions of the Indoor Unit wired controller through D1D2 communication (a maximum of 16 sets) D1D2 communication is 485 communication. -
Page 49: Display Panel Connection
Connection of display panel Connection of display panel ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide The display panel is connected to the main control board through a 4-core cable, and is connected to the Connection of display panel The display panel is connected to the main control board through a 4-core cable, and is connected to the "CN30"... -
Page 50: Reclose The Electric Control Box Cover
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 09.13. 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. When covering the electric control box, arrange the cables carefully and do not clip the connecting wires on the electric control box cover. -
Page 51: Application Control
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 10. APPLICATION CONTROL 10.01. 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 52 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...
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Page 53: Operating Status Codes And Definitions (Non-Error)
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 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 54: Spot Check Description
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 10.03. 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 55: Test Run
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 11. TEST RUN • Indoor Units and the Outdoor Unit are properly installed. • The piping is correct, and the refrigerant piping system has been checked for leakage. • Piping length and the amount of refrigerant charged have been recorded. •... -
Page 56: Inspection After Installation
Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 11.04. 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... -
Page 57: Cleaning, Maintenance And After-Sales Service
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 12. CLEANING, MAINTENANCE AND AFTER-SALES SERVICE 12.01. Safety Warning WARNING • For safety reasons, always turn off the air conditioner and turn off the power before cleaning the air conditioner. • Do not disassemble or repair the air conditioner by yourself; otherwise, it may cause fire or other hazards. Only professional service personnel can carry out the maintenance. - Page 58 Remove the filter. Remove the filter. Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES [ Note ] [ Note ] Only professionals can change and disassemble the filter. Any improper operations may cause electric Only professionals can change and disassemble the filter. Any improper operations may cause electric shock or injuries due to touching rotating parts.
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Page 59: Maintenance
ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 12.03. Maintenance During in-depth maintenance, the air conditioner should be cleaned and maintained by professional technicians every 2 to 3 years. For the Indoor Unit in constant speed mode, the primary efficiency filter is usually cleaned every three months. When operating in a dusty environment, the air flow and capacity of the filter will decrease. - Page 60 Installation and Commissioning Guide ECOFLEX MINI VRF R32 SERIES 12.03.01.02. Steps to dismantle the evaporator, drain pan and water pump and their maintenance. The drain pan must first be removed during the maintenance of the internal unit assembly. Dismantle the drain pan according to the following schematic to prevent water leakage in the unit (Make sure there is no residual water in the drain pan before you dismantle it).
- Page 61 ECOFLEX MINI VRF R32 SERIES Installation and Commissioning Guide 12.03.01.03. Maintenance of motor and propeller housing ① Follow the steps of cleaning the filter above to remove the air inlet grille. ② After removing the two fastening screws, the filter ③...
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- 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 - 2 WAY CASSETTE...
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