ActronAir Mini Cassette 2 Split System Air Conditioner

01. Symbols

Explanation of symbols displayed on the air conditioner and in this guide:

• [!] Symbol with flame: This symbol indicates the appliance uses a flammable refrigerant. If the refrigerant leaks and is exposed to an external ignition source, there is a risk of fire.

• [Document Icon]: This symbol shows that the Operation Manual should be read carefully.

• [Document with Person Icon]: This symbol shows that a service person should be handling this equipment with reference to the Installation Manual.

• [Document with 'i' Icon]: This symbol shows that there is information included in the Operation Manual and Installation Manual.

02. Inspection

02.01. Product Inspections

Upon receiving your shipment, check your air conditioning unit and all items against the invoice. Inspect the unit, components, and accessories for any sign of damage. If any damage is found, contact ActronAir Customer Care Department immediately on 1300 522 722 to obtain a Goods Return Number. Verify the unit nameplate details, including model, serial number, and electrical rated specifications.

02.02. Codes, Regulations and Standards

The installer and/or contractor is responsible for ensuring that unit installation complies with relevant council, state, and federal codes, regulations, and building code standards. All electrical wiring must be in accordance with current electrical authority regulations and all wiring connections must follow the electrical diagram provided with the unit.

03. General Information

ActronAir air conditioning units are designed for applications prioritizing superior performance, high efficiency, reliability, supply air quality, and quiet operation. For optimum efficiency, the unit delivers the precise cooling or heating capacity required, even in extreme conditions.

Energy Efficient Refrigeration Circuits

The ActronAir system features a split ducted refrigeration circuit that delivers only the necessary cooling or heating to maintain desired comfort at peak efficiency. Each circuit comprises:

• High efficiency inverter scroll compressor.
• Gold hydrophilic coat coil protected condenser designed for optimum performance and efficiency with corrugated fins and riffled tubing.
• Gold hydrophilic coat coil protected evaporator coil designed for optimum performance and efficiency with lanced fins and riffled tubing.

Evaporator Section

The evaporator section utilizes DC fans to deliver optimal airflow based on requirements, ensuring superior performance and comfort with high efficiency. Features include:

• Highly efficient variable speed DC motor for reduced energy consumption.
• Easy variable indoor fan commissioning via intelligent controllers.
• Low noise operation.

Condenser Section

Features a single DC inverter fan motor for low noise operation and an inverter rotary compressor.

Electrical Section

Comprises a separate panel for controls, protecting components from the elements.

Durable Design and Construction

ActronAir products are Australian-made, known for high quality, durability, and reliability, designed to withstand extreme weather. The galvanized steel cabinet with powder-coated epoxy enamel finish resists tough conditions. Gold Hydrophilic Coat Coil Protection heat exchangers enhance heat transfer and performance efficiency.

System Flexibility

ActronAir units are ideal for residential, office, and school applications, suitable for both new construction and retrofitting projects.

Refrigerant Handling and Accountability

ActronAir strongly urges all service technicians to minimize refrigerant emissions and act responsibly to conserve refrigerants.

Sustainability and Environmentally Friendly

The system uses a zero ozone depleting, low GWP R-32 refrigerant. ActronAir units offer solutions for reducing energy consumption, CO₂ emissions, and reliance on high fuel dependency and network grid demand.

04. Safety Instructions

• Only licensed HVAC technicians should install and service this equipment. Improper service by unqualified technicians can result in significant damage, render the warranty void, or cause severe physical injury or death.
• Follow all safety instructions in this literature and on warning labels attached to the equipment.
• Observe prevailing WH&S regulations, which take precedence over manual instructions. Safe work practices and environment are paramount.
• Ensure unit installation complies with relevant council regulations and building code standards.
• All electrical wiring must comply with current electrical authority regulations and diagrams.
• Secure fans against accidental contact. Beware of pinch points and sharp edges.
• Always wear appropriate PPE, remove dangling jewelry, and protect long hair with a cap.
• Ensure safety guards and panel covers are securely fastened and undamaged.
• This appliance is not intended for use by young children or infirm persons unless adequately supervised. Supervise children to prevent them from playing with the appliance.
• Installers must incorporate an electrical disconnection means (isolator) in the sub-mains fixed wiring per AS/NZS 3000 (Australian Wiring Rules).
• Secure power cords and control cables.

*Qualifications required will be appropriate Electrical, Refrigeration, and Refrigerant Handling License and Training dependent on local State/Territory regulations.

[!] DANGER Hazardous Voltage - Risk of Electrocution

Turn off the power from the main isolator before any service work. Observe proper LOCK-OUT/TAG-OUT (LOTO) procedures to prevent accidental switching on. Exercise extreme care and caution when working on live circuits.

[!] WARNING

This air conditioning unit contains R-32 refrigerant (CLASS A2L), which is mildly flammable. Thoroughly read and understand the accompanying R-32 Safety Guide for installation and maintenance instructions. Installation, service, maintenance, repairs, and decommissioning must be performed by a licensed HVAC technician qualified to handle R-32 refrigerant. R-32 refrigerant is odorless; if it contacts fire, it may emit poisonous gas. The appliance must be installed, operated, and stored in a well-ventilated area, away from continuously operating open flames or ignition sources, and potential sources that could cause ignition of R-32 refrigerant.

[!] CAUTION Beware of Rotating Fans!

Ensure that indoor and outdoor fans are isolated and completely stopped before servicing. Beware of pinch points and sharp edges. Always wear appropriate PPE, remove dangling jewelry, and protect long hair with a cap. Ensure no loose clothing can be caught in moving parts.

VISUAL INSPECTION AND WORK ASSESSMENT

Assess work areas and conditions for potential hazards. Familiarize yourself with the unit parts and components before proceeding with any service task.

NOTE: Fuse Specifications

The air conditioner's circuit board (PCB) is designed with a fuse for overcurrent protection. Fuse specifications (T3.15A/250VAC) are printed on the circuit board. For units with R-32 refrigerant, only blast-proof ceramic fuses can be used.

05. Installation Information

All service technicians handling this unit must be licensed to handle R-32 refrigerant.

Recover and Recycle Refrigerants

Never release refrigerant to the atmosphere; it is an offense in Australia. Always recover, recycle, and reuse refrigerants. When removing from the system, properly contain and identify refrigerants in their dedicated container for disposal or storage. Consider recycle or reclaim requirements before recovery. Obtain a chemical analysis of the refrigerant if necessary. Refer to existing standards and regulations for recovered refrigerant and acceptable quality.

Refrigerant Handling and Safety

Consult the refrigerant manufacturer's Material Safety Data Sheet (MSDS) for proper handling information and to understand health, safety, storage, and disposal requirements. Use approved containment vessels and refer to appropriate safety standards. Comply with all applicable transportation standards when shipping refrigerant containers.

Service Equipment and Recovery Procedures

Always use refrigerant reclaiming equipment to minimize emissions. Employ methods that pull the lowest possible system vacuum while recovering and condensing refrigerant. Equipment capable of pulling a vacuum of less than 500 microns is required. Do not open the system to the atmosphere until refrigerant is fully removed or recovered. Perform refrigeration system evacuation prior to charging, in accordance with AIRAH / IRHACE Refrigerant handling code of practice. Allow the unit to stand for 1 hour and check that the vacuum does not rise above 500 microns; a rise indicates a leak requiring repair. Charge refrigerant only after the equipment is leak-free and moisture-free. Use the correct refrigerant charge amount for efficient operation. Reclaim refrigerant from charging lines into an approved container and seal containers with approved devices. Maintain all service equipment.

INSTALLATION PREPARATION (Pre-Installation Considerations)

Consider the following items before beginning unit installation:

• Verify unit capacities and ratings against the unit nameplate.
• Ensure the floor or foundation is level, solid, and has sufficient structural strength to support the unit and accessories.
• Install anti-vibration rubber (installer to supply) under all unit feet to reduce noise and minimize vibration transfer. Ensure rubbers are rated for stable support without impairing structural integrity.
• The diameter or width of anti-vibration rubbers must be at least equal to the width of the actual feet to prevent deformation.
• Allow minimum recommended clearances for periodic maintenance and service access.
• Allow sufficient space beside the unit for outdoor air discharge. The condenser air inlet requires sufficient airflow clearance for optimal performance.
• Note the conditioned supply air and return air locations, ensuring adequate space.
• Refer to drawings for condensate drain connection and location.
• Wiring connections must comply with the wiring diagram provided.
• Ensure all wiring complies with local electricity authority regulations and standards.
• Do not install the unit near areas with fire hazards (volatile, explosive, flammable, or hazardous materials).
• Ensure spaces around the unit are free from obstructions for optimum performance.
• Installers must ensure the correct size/type of main circuit breaker and cable are installed in unit sub-mains.
• Installers must ensure a correctly rated residual current device (RCD) is installed per the latest version of AS/NZS 3000 (Australian Wiring Rules).

CAUTION: This indoor unit is designed to match only with the specified ActronAir outdoor unit. The unit is supplied with factory-charged R-32 refrigerant and is designed for use with R-32 refrigerant only. Be aware of all relevant regulations concerning refrigerant handling.

Optional accessories

Wired and wireless controllers are available. Select a remote controller based on customer preferences and requirements and install it in an appropriate place. Refer to catalogues and technical literature for guidance.

06. Components

The air conditioning system includes the following components. Use all installation parts and accessories. Improper installation may result in water leakage, electrical shock, fire, or equipment failure. Items not included must be purchased separately.

07. Installation Overview

Installation Order

1. Install the indoor unit.
2. Install the drainpipe.
3. Install the outdoor unit.
4. Connect the refrigerant pipes (Refer to Multi Elite Installation Manual for Outdoor Unit).
5. Connect the wires.
6. Perform Leak Testing, Air Evacuation, and Charging of the Refrigeration System (Refer to Multi Elite Installation Manual for Outdoor Unit).
7. Perform a test run.

08. Indoor Units Parts

The indoor unit includes the following parts:

• Louvre
• Front grille
• Air outlet
• Display panel
• Air inlet
• Drain pump (within indoor unit)
• Drain pipe
• Refrigerant pipe

09. Indoor Unit Installation

WARNING: Securely install the indoor unit on a structure that can sustain its weight. A weak structure may cause the unit to fall, resulting in personal injury, unit, and property damage, or death. DO NOT install the indoor unit in a bathroom or laundry room, as excessive moisture can short the unit and corrode wiring.

CAUTION: Install indoor and outdoor units, cables, and wires at least 1 meter from televisions or radios to prevent static or image distortion. DO NOT install the unit in the following locations:

• Areas with oil drilling or fracking.
• Areas with caustic gases in the air, such as near hot springs.
• Enclosed spaces, such as cabinets.
• Areas with strong electromagnetic waves.
• Areas that store flammable materials or gas.
• Rooms with high humidity, such as bathrooms or laundry rooms.

Select Installation Location

The outdoor unit should be installed in a location meeting these requirements:

• Sufficient room for installation and maintenance.
• Sufficient room for the connecting pipe and drainpipe.
• Horizontal ceiling with sufficient structural strength to support the indoor unit.
• Unimpeded air inlet and outlet.
• Airflow capable of filling the entire room.
• No direct radiation from heaters.

Recommended Distances Between The Indoor Unit And The Ceiling

The distance between the mounted indoor unit and the internal ceiling must meet the following specifications (See Fig. 4.2):

• Ceiling to Unit Body: 260 mm clearance.
• Unit Body to Panel: 260 mm clearance.
• Airflow Allowance (Above Unit): Minimum 1000 mm.
• Airflow Allowance (Sides): Minimum 1000 mm.
• Airflow Allowance (Below Unit): Minimum 2500 mm.
• Side Clearance: Minimum 290 mm on one side.

Note: The service areas and airflow allowances are minimums for minor repairs. Additional space may be required for major repairs.

10. Indoor Unit Dimensions

Refer to the following data to locate the four positioning screw bolt holes on the ceiling and mark areas for ceiling hook drilling. The distance between the mounted indoor unit and the internal ceiling must meet the specifications shown.

• Body Dimensions: Approximately 570mm (width) x 523mm (depth) x 260mm (height).
• Panel Dimensions: Approximately 647mm x 647mm.
• Key Features: Wiring connection ports, Fresh Air Intake (Ø65mm), Drain pipe outlet (Ø25mm), E-parts box, 4 x Screw Holes for panel installation, 4 x Installation Hangers.
• Outside Air Intake Details: Circular intake with specified dimensions.

11. Indoor Unit Installation

Hang Unit

1. Use the included paper template to cut a 600x600mm rectangular hole in the ceiling, marking areas for ceiling hook holes.
2. Drill 4 holes, 50mm deep, at the ceiling hook positions at a 90° angle to the ceiling.
3. Insert ceiling hooks into the pre-drilled holes and secure with washers and nuts.
4. Install the four suspension bolts.

CAUTION: The unit body must be completely aligned with the hole. Ensure the unit and hole are the same size before mounting.

5. Mount the indoor unit. This requires two people. Insert suspension bolts into the unit's hanging holes and fasten with the included washers and nuts (See Fig. 4.5).

NOTE: The bottom of the unit should be 24mm higher than the ceiling board. Ensure the suspension bolt length is adequate to prevent nuts from coming off.

CAUTION: Ensure the unit is completely level. Improper installation can cause the drain pipe to back up into the unit or lead to water leakage.

NOTE: The unit has a built-in drain pump and float switch. If the unit is tilted against the direction of condensate flows (raising the drainpipe side), the float switch may malfunction and cause water to leak.

NOTE FOR NEW HOME INSTALLATION

When installing in a new home, ceiling hooks can be embedded in advance. Ensure they do not come loose due to concrete shrinkage. After installing the indoor unit, use the installation paper template with bolts (M6x12) to mark the opening position on the ceiling.

12. Drainpipe Installation

The drainpipe is used to drain water from the unit. Improper installation may cause unit and property damage.

CAUTION:

• Insulate all piping to prevent condensation and potential water damage.
• If the drainpipe is bent or installed incorrectly, water may leak and cause a malfunction of the water-level switch.
• In HEAT mode, the outdoor unit discharges water. Ensure the drain hose is placed in an appropriate area to avoid water damage and slippage due to frozen drain water.
• DO NOT pull the drainpipe forcefully, as this could cause it to disconnect.

Indoor Drainpipe Installation

Install the drainpipe as illustrated:

1. Cover the drainpipe with heat insulation to prevent condensation and leakage.
2. Attach the drain hose to the unit's outlet pipe, sheathing and clipping it firmly with a pipe clasp.
3. Ensure the drain pipe has flex by installing clear tubing or similar to prevent drain breakage or cracking.

NOTE ON DRAIN PIPE INSTALLATION

• When using an extended drainpipe, tighten the indoor connection with an additional protection tube to prevent it from pulling loose.
• The drainpipe should slope downward at a gradient of at least 1/100 to prevent water from flowing back into the air conditioner.
• To prevent pipe sagging, space hanging wires every 1-1.5 meters.
• If the drainpipe outlet is higher than the unit's pump joint, provide a lift pipe for the exhaust outlet. The lift pipe must be installed no higher than 750mm, and the distance between the unit and the lift pipe must be less than 300mm.
• Incorrect installation can cause water to flow back into the unit and flood.
• To prevent air bubbles, keep the drain hose level or slightly tilted (less than 75mm).

Diagram Description (Fig. 5.3): Shows clearances and slope requirements for drainpipe installation, including maximum heights and distances.

Connecting Multiple Drainpipes

Install multiple drainpipes as shown in Fig. 5.4.

Wall Hole Drilling

1. Using a 65-mm core drill, drill a hole in the wall. Ensure the hole is drilled at a slight downward angle, so the outdoor end is lower than the indoor end by approximately 12mm, for proper water drainage. Place the protective wall cuff in the hole to protect edges and help seal it.

NOTE: When drilling, avoid wires, plumbing, and other sensitive components.

5. Pass the drain hose through the wall hole. Ensure water drains to a safe location, preventing water damage or slipping hazards.

NOTE: The drainpipe outlet should be at least 50mm above the ground. If it touches the ground, the unit may become blocked and malfunction. If discharging directly into a sewer, ensure a U or S pipe is used to catch odors.

13. Wiring

Safety Precautions

WARNING:

• Disconnect the power supply before working on the unit.
• All electrical wiring must be done according to local and national regulations.
• Electrical wiring must be performed by a qualified technician. Improper connections can cause electrical malfunction, injury, and fire.
• Connect the power cable to the terminals and fasten it with the clamp.
• Ensure all wiring is done correctly and the control board cover is properly installed. Failure to do so can cause overheating at connection points, fire, and electrical shock.

CAUTION:

• Connect outdoor wires before indoor wires.
• Ensure the unit is properly earthed; improper earthing may cause electrical shock.
• DO NOT connect the unit to the power source until all wiring and piping are completed.
• Avoid crossing electrical wiring with signal wiring, as this can cause distortion and interference.

Instructions to Prevent Distortion When the Compressor Starts:

• The unit must be connected to its individual sub-circuit. Ensure sub-circuit mains are of recommended size to ensure minimal voltage drop at supply terminals.
• No other equipment should be connected to the same sub-circuit as the A/C unit.
• The unit's power information is on the rating sticker on the product.

TAKE NOTE OF FUSE SPECIFICATIONS

The air conditioner's circuit board (PCB) has a fuse for overcurrent protection (T3.15A/250VAC). For units with R-32 refrigerant, only blast-proof ceramic fuses can be used.

Indoor Unit Wiring

1. Prepare the cable for connection: Strip outer insulation from signal cable ends, strip insulation from internal wires, and crimp fork-lugs onto wire ends.
2. Remove the cover of the electric control box on your indoor unit.
3. Connect the fork-lugs to the terminals, matching wire colors/labels with terminal block labels. Firmly screw each wire lug to its terminal. Refer to the Serial Number and Wiring Diagram on the control box cover.
4. Clamp down the cable with the designated clamp to secure it. The cable should not be loose or pull on the lugs.
5. Reinstall the electric box cover.

CAUTION: Strictly follow the wiring diagram. The refrigerant circuit can become very hot; keep the interconnection cable away from the copper tube.

Connecting Diagram

Diagram Description: Shows the connection between the Outdoor Unit and Indoor Unit.

• Outdoor Unit: L, N, L, N, S terminals.
• Indoor Unit: L(L1), N(L2), S terminals.
• Power Supply: Refer to Outdoor Unit Installation Guide for suggested minimum.
• Cable: 14/0.20 (0.44mm²) SHIELDED DATA CABLE WITH SHIELD WIRE CONNECTED TO EARTH TERMINAL.
• Field wiring by Installer: 1mm² (2 CORE + EARTH).

*Suggested minimum cable size is a guide only; refer to the latest edition of AS/NZS 3000 'Australia/New Zealand Wiring Rules' for more details.

14. Wiring Diagram

Diagram Description: A detailed schematic of the indoor unit's electrical connections, showing the indoor circuit board, various components like fuses, motors, sensors, switches, and connection terminals for the outdoor unit, wired controller, and optional accessories. It also specifies cable types and revision history.

• Key Components: Indoor circuit board, FUSE, various CN (connector) terminals, SW (switch) terminals, M (motor) symbols, PUMP, WATER LEVEL SWITCH, MAGNETIC RING.
• Sensors: ROOM TEMPERATURE SENSOR - T1 (WHITE), INDOOR COIL TEMPERATURE SENSOR - T2 (BLACK), INDOOR COIL OUTLET TEMPERATURE SENSOR (T2B).
• Connections: TO OUTDOOR UNIT, WIRED CONTROLLER (WC-02), OPTIONAL REMOTE ON/OFF SWITCH, OPTIONAL ALARM RELAY OUTPUT, 3RD PARTY FRESH AIR FAN MOTOR OR DAMPER SUPPLY, OPTIONAL 3RD PARTY OUTSIDE AIR FAN MOTOR OR DAMPER MOTOR.
• Notes: Specific notes regarding outside air motor/damper wattage, ferrite ring installation, and jumper wire (JR6) removal for 'REMOTE ON/OFF' function are provided.
• Cable Specifications: 4 CORE SHIELDED CABLE (comes with WC-02). Cable S must be 14/0.20 (0.44mm²) SHIELDED DATA CABLE WITH SHIELD WIRE CONNECTED TO EARTH TERMINAL ON INDOOR AND OUTDOOR.

15. Installation of the Panel

CAUTION: DO NOT place the panel face down on the floor, against a wall, or on uneven surfaces.

Remove the front Grille

1. Push both tabs towards the middle simultaneously to unlock the grille hook.
2. Hold the grille at a 45° angle, lift it slightly, and detach it from the main body.

Mounting the frame

1. Align the indicator "Δ" on the unit. Attach the decoration panel to the unit using the supplied screws.
2. After installing the decoration panel, ensure there is no space between the unit body and the panel. Otherwise, air may leak through the gap and cause dewdrops.

Mount the intake grille

Ensure the buckles at the back of the grille are properly seated in the groove of the panel.

Connect Wires

Connect the 2 wires of the fascia panel to the mainboard of the unit.

Fasten Control Box Lid

Secure the control box lid with 2 screws.

Close Intake Grille

Close the intake grille and the 2 grille hooks.

16. Test Run

Before Commissioning

A test run must be performed after the entire system is completely installed. Confirm the following points before performing the test:

• The indoor and outdoor units are properly installed.
• Piping and wiring are properly connected.
• Ensure there are no obstacles near the unit's inlet and outlet that might cause poor performance or malfunction.
• The refrigeration system does not leak.
• The drainage system is unimpeded and draining to a safe location.
• The heating insulation is properly installed.
• The earth wires are properly connected.
• The length of the piping and the added refrigerant stow capacity have been recorded.
• The supply voltage is correct for the air conditioner.

CAUTION: Failure to perform commissioning may result in unit damage, property damage, personal injury, and may void the warranty.

Test Run Instructions

1. Open both the liquid and gas stop valves.
2. Turn on the main power switch and allow the unit to warm up.
3. Set the air conditioner to COOL mode.
4. For the Indoor Unit:
   • Ensure the remote control and its buttons work properly.
   • Ensure the louvres move properly and can be changed using the remote control.
   • Check if the room temperature is being registered correctly.
   • Ensure the indicators on the remote control and the display panel on the indoor unit work properly.
   • Ensure the manual buttons on the indoor unit work properly.
   • Check that the draining system is unimpeded and draining smoothly.
   • Ensure there is no vibration or abnormal noise during operation.
5. For the Outdoor Unit:
   • Check if the refrigeration system is leaking.
   • Make sure there is no vibration or abnormal noise during operation.
   • Ensure the wind, noise, and water generated by the unit do not disturb neighbors or pose a safety hazard.
   • Check the refrigeration pressures to ensure they are operating correctly.
   • Check the voltage and current drawn by the unit are correct.
   • Ensure anti-vibration rubbers are fitted under the outdoor unit feet.

Commissioning Instructions

1. Set the air conditioner to COOL mode.
2. For the Indoor Unit:
   • Ensure the wall control and its buttons work properly.
   • Double-check if the room temperature is being registered correctly.
   • Ensure the indicators on the wall control and the display panel on the indoor unit work properly.
3. Outdoor Unit:
   • Check if the refrigeration system is leaking.
   • Make sure there is no vibration or abnormal noise during operation.
   • Ensure the wind, noise, and water generated by the unit do not disturb neighbors or pose a safety hazard.

Drainage Test

1. Ensure the drainpipe flows smoothly.
2. Remove the test cover. Add 2,000ml of water to the tank through the attached tube.
3. Turn on the main power switch and run the air conditioner in COOL mode.
4. Listen to the sound of the drain pump to check for unusual noises.
5. Check that water is discharged. It may take up to one minute for draining to begin, depending on the drainpipe.
6. Make sure there are no leaks in any of the piping.
7. Stop the air conditioner, turn off the main power switch, and reinstall the test cover.

NOTE: If the unit malfunctions or does not operate as expected, refer to the Troubleshooting section of the Owner's Manual before calling customer service.

ActronAir Information

Website: actronair.com.au

Phone: 1300 522 722

Certifications: Certified System, Quality ISO 9001, ARC Refrigerant Trading Authorisation No.: AU06394, MEPS CERTIFIED.

©Copyright 2021 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.