Home | Midea Products | VRF Mode Switch (MS) Box

Rectangular metal industrial electrical enclosure designed for commercial HVAC applications, featuring four cable entry points and two copper pipes extending from one side—ideal for Midea air conditioning or room air conditioner systems.

Rectangular commercial HVAC manifold unit with labeled copper pipe connections on both sides, featuring a yellow caution label on the right. Compatible with Midea air conditioning systems.

Rectangular commercial HVAC distribution unit with multiple copper pipe connections and a yellow caution label on the right side, designed for use in split system air conditioner or VRF air conditioning setups.

A rectangular metal HVAC manifold unit with multiple copper pipe connections and a yellow warning label, designed for commercial HVAC and VRF air conditioning systems.

Rectangular HVAC manifold unit with multiple copper pipe connections and a yellow caution label, designed for VRF air conditioning and heating and cooling solutions, viewed from the front against a white background.

Rectangular metal HVAC manifold box with multiple copper pipe connections and a yellow caution label on the right side, compatible with VRF air conditioning systems, isolated on a white background.

VRF Mode Switch (MS) Box

Midea MS Boxes enable precise control of VRF indoor units, allowing different zones to operate simultaneously in either cooling or heating modes for tailored comfort across each space.

Up to 10 year warranty*

Warranty extends annually when original Mi Pro installer registers maintenance.

In house tech support

We provide rapid response times to minimise end-user downtime.

Next day delivery*

Our customers enjoy fast, reliable next day delivery.

Product Specifications Delivery and Returns Warranty User Guides

Download full product specifications. Specification varies per size.

Installers with a Midea account benefit from next day delivery across the UK, ensuring equipment arrives exactly when it’s needed to avoid delays and keep installations moving.

With same day quotes available, you can price projects quickly and respond to customers without delay. Combined with our streamlined logistics network and dedicated trade service, account holders benefit from efficient order processing, dependable lead times, and the support needed to deliver every project on schedule.

Midea offers an industry-leading warranty, designed to support reliability and performance, our warranty ensures systems are protected when installed, registered and serviced in line with our guidelines.

With clear processes and dependable support, we make it easy to manage warranties and maintain high standards across every project.

Visit our warranty page for more information.

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Innovative Mode Switch Box

Designed for quiet operation, they utilise advanced solenoid valve technology to deliver accurate and efficient performance. Available in six configurations, each MS Box can connect up to 24 indoor VRF units across six groups, with a maximum combined indoor capacity of 56kW – offering flexible, high-capacity cooling and heating solutions.