Bonaire 4 Head Multi Split Outdoor Unit H4M105S2AE

The Bonaire 4 head multi split outdoor unit H4M105S2AE is a 10.5kW outdoor condenser designed for multi-room residential air conditioning. It can connect with up to four compatible Bonaire indoor units, allowing several areas of a home to be heated or cooled without installing a separate outdoor condenser for every room.

This configuration is particularly useful for homes where outdoor space is limited or where the owner prefers a cleaner external appearance. Instead of positioning multiple condensers around the building, the H4M105S2AE provides a central outdoor solution for a properly designed four-zone multi-split system.

The H4M105S2AE is supplied as an outdoor unit only. Indoor heads, controllers, interconnecting cables, refrigeration pipework, drainage materials, mounting equipment and professional installation are not included unless specifically stated in your quotation.

Product identification

Brand	Bonaire
Series	Optima S2 Multi-Split
Outdoor model	H4M105S2AE
Rated capacity class	10.5kW
Maximum indoor heads	Up to four compatible indoor units
Refrigerant	R32
Product supplied	Outdoor condenser only

Air conditioning for up to four rooms

A multi-split system connects several indoor units to one outdoor condenser. With an approved system design, the Bonaire H4M105S2AE can support up to four compatible indoor heads. This gives householders the flexibility to select indoor units that suit the size and purpose of different rooms.

For example, smaller-capacity indoor units may be suitable for bedrooms or a home office, while larger indoor units may be selected for a lounge, dining area or another open-plan space. Each connected indoor unit can provide individual room control, subject to the operating requirements and limitations of the complete multi-split system.

Using one outdoor condenser may also reduce the amount of exterior wall and ground space required compared with installing several independent split systems. It can provide a more organised installation for townhouses, apartments and family homes where positioning multiple outdoor units would be difficult.

Compatible indoor-unit options

The H4M105S2AE is intended to operate with approved Bonaire Optima S2 multi-split indoor units. Depending on availability and the official combination table, compatible models may include capacity options such as:

• MSS021S2AI – 2.1kW indoor unit
• MSS026S2AI – 2.6kW indoor unit
• MSS035S2AI – 3.5kW indoor unit
• MSS053S2AI – 5.3kW indoor unit
• MSS072S2AI – 7.2kW indoor unit

Important: The ability to connect up to four indoor units does not mean that every combination of four indoor models is approved. The combined connected capacity, pipe lengths, height differences and room requirements must comply with Bonaire’s current engineering and combination specifications.

Please have the proposed indoor-unit selection checked before purchasing. An installer or supplier should confirm that the complete combination is suitable for the property and falls within the manufacturer’s permitted operating range.

R32 refrigerant technology

The Bonaire H4M105S2AE uses R32 refrigerant. R32 is widely used in current-generation residential air-conditioning equipment and forms part of the system’s refrigeration circuit. Because refrigerant handling requires specialised knowledge and equipment, installation, commissioning, servicing and decommissioning must be completed by an appropriately qualified and licensed air-conditioning professional.

The refrigerant pipework must be correctly sized, insulated, pressure tested, evacuated and commissioned. Incorrect installation can affect system performance, reliability, efficiency and warranty eligibility.

Suitable applications

The H4M105S2AE may suit properties requiring air conditioning across several separate spaces, including:

• Family homes with multiple bedrooms
• Living, dining and bedroom combinations
• Townhouses with restricted outdoor space
• Apartments where installation approval permits multi-split equipment
• Home offices and study areas
• Renovation or replacement projects requiring a multi-room solution

Actual suitability depends on room dimensions, ceiling height, windows, insulation, orientation, local climate, occupancy and internal heat loads. Capacity should therefore be selected using a professional heat-load assessment rather than room area alone.

Professional system design is essential

A four-head multi-split system requires careful planning. The installer must confirm the location of the outdoor condenser, the position and capacity of each indoor unit, allowable pipe lengths, vertical separation, condensate drainage, electrical supply and service access.

The outdoor unit also needs adequate clearance for airflow and maintenance. It should not be installed in an enclosed location that could cause discharged air to recirculate through the condenser. Appropriate mounting and vibration-control methods should be used for the selected installation location.

Electrical and refrigeration work must comply with applicable Australian standards, state requirements, local regulations and the manufacturer’s installation instructions.

Warranty information

The Bonaire Optima S2 system may qualify for the applicable manufacturer warranty when purchased through an authorised channel and installed, commissioned, operated and maintained in accordance with Bonaire’s requirements. Warranty periods and conditions can change, so customers should review the current Bonaire warranty documentation before purchasing.

Retain the tax invoice, model and serial information, installation certificate and the installer’s details. These documents may be required for a future warranty claim. Damage caused by incorrect sizing, unapproved combinations, improper installation, misuse or inadequate maintenance may not be covered.

What is included?

This listing is for one Bonaire H4M105S2AE 10.5kW multi-split outdoor unit. Compatible indoor units are selected and purchased separately unless a complete package is clearly shown in the quotation or order confirmation.

Before ordering, confirm the number and capacity of the indoor units you require. Air Conditioning Trade can assist with checking the proposed combination and preparing a system quotation for compatible equipment and installation requirements.

Frequently asked questions

How many indoor units can the H4M105S2AE operate?

It is designed to support up to four compatible Bonaire indoor heads, subject to the approved combination and connected-capacity limits.

Are four indoor units included?

No. This product listing is for the outdoor condenser only. Indoor units and installation components are sold separately unless expressly included in a package.

Can I select any four indoor-unit sizes?

No. The proposed combination must be checked against the current Bonaire multi-split combination requirements before ordering.

Does the system provide heating and cooling?

The unit is intended for use as part of a compatible reverse-cycle multi-split system. Final functionality depends on the selected indoor units, controllers and completed system configuration.

Does it require professional installation?

Yes. Installation and commissioning must be completed by appropriately qualified and licensed professionals.

Request a compatible system quotation

Contact Air Conditioning Trade with the room sizes, proposed indoor-unit locations and the number of zones required. We can help identify an appropriate combination for the Bonaire 4 head multi split outdoor unit and prepare a quotation for the required equipment.

Product specifications, appearance, compatible combinations and warranty conditions may change. The displayed image is representative. Always verify current manufacturer documentation and approved system combinations before ordering.