Rinnai Pro Series Multi Split System

One system for the whole home

The Rinnai Pro Series Multi Split System is the simplest way to heat or cool up to five individual rooms with only one outdoor unit.

Traditionally, five rooms would require five indoor units and five outdoor units. This uses up precious outdoor space and creates an obtrusive appearance to your home.

Rinnai Multi Split Systems not only provide individual control of comfort levels in each room, but saves you money on running costs by either only heating or cooling individual rooms as required.

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Product Details

Rinnai Pro Series Multi Split Systems offer 3 different indoor unit types (Wall Mounted, Slim Ducted and Compact Cassette) that can be used in a multitude of combinations. After selecting up to 5 indoor unit types, these are then paired with an outdoor unit (4 units to choose from) with capacities ranging from 7.1kW up to 13.0kW. With a variety of unit types and capacities available, Rinnai has a system configuration to suit virtually any requirement.

Seamless & Sleek

The sleek Rinnai Wall Mounted Split Systems feature the latest in innovation. Equipped with features including Turbo Function to quickly cool and heat the room, they discreetly operate thanks to a cleverly designed air tunnel for greater air distribution.

Come home to comfort with the NetHome Plus App allowing you to control your Wall Mounted Split System using Wi-Fi from anywhere with an internet or network connection.

Flexible & Functional

Compact & space saving in design, the Rinnai Slim Ducted and Compact Cassette indoor units are ideal for tight spaces. Hidden away in a bulkhead or ceiling cavity, the Slim Ducted indoor unit operates quietly, so it's out of sight and out of mind.

Utilise the most of your ceiling space with the low profile Inverter Cassette, suitable for use in the larger open plan areas of the home with its 360° airflow.


Wi-Fi Control**
Set your favourite temperature from anywhere and come home to ultimate comfort with our intuitive Android or Apple NetHome Plus App. Wi-Fi comes standard with the Wall Mounted Split System and Slim Ducted, and is an optional extra on Compact Cassette units.
Turbo Function
Quickly cool in summer or swiftly warm in winter.
Sleep Mode
The Pro Series intelligent sleep mode operates on a two-way temperature control that modulates up and down to mimic outside ambient temperatures, ensuring a comfortable sleep.
Auto Restart
Auto restart function in case of an electrical power outage provides you with complete peace of mind.
Super Fine Filter
Provides extra protection by keeping fine particles out of the home and providing clean, cool air.
A delay ON or OFF timer allows you to select a period of time (from 30 minutes to 24 hours), the unit will turn either on or off depending on its current status.

** Standard feature in in Wall Mounted Split Systems and Slim Ducted. Optional in Compact Cassette units.
NetHome Plus is a third party application independent of Rinnai.

Available in Wall Mounted Split System only

Technical Specifications

Multi outdoor codes
  • MON3H07B (7.5 kW)
  • MON4H09B (9 kW)
  • MON5H11B (12 kW)
  • MON5H13B (13.5 kW)
Indoor High Wall codes
  • HINRP26MB (2.6 kW)
  • HINRP35MB (3.5 kW)
  • HINRP50MB (5.0 kW)
  • HINRP60MB (6.0 kW)
  • HINRP70MB (7.0 kW)
Indoor Slim Ducted codes
  • DINSD26MB (2.5 kW)
  • DINSD35MB (3.5 kW)
  • DINSD50MB (5.0 kW)
  • DINSD70MB (7.0 kW)
Indoor Cassette codes
  • CIN026RMB (2.6 kW)
  • CIN035RMB (3.5 kW)
  • CIN050RMB (5.0 kW)
  • CINFASM (front panel all models)


Full specification data

Detailed specification information is available in the installation guide within the 'Downloads' tab.

Market release

Feb 2024