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Typically, an office building introduces a great variety of challenging environments to an HVAC system. From computer and server rooms where consistent temperatures are vital, to boardrooms and lunch rooms of various sizes where heat-generating appliances are used, to perimeter offices and cubicles where temperatures fluctuate during the day and throughout the year, each zone of an office has its own comfort needs and requires its own unique settings.

With CITY MULTI's Variable Refrigerant Flow (VRF) Technology, the system can now adjust and shift heat loads throughout the day between zones to maintain maximum efficiency throughout the network. In the winter, CITY MULTI can also minimize boiler usage with its high heat output as well as heat recovered from cooling zones (R2 & WR2 Series), helping increase energy savings throughout the year.

Global City Multi Case Study




Kitchens generate much higher temperatures around grills and ovens while dining areas may be too cold for customers and staff. CITY MULTI indoor units iperate independently to cool kitchens while heating other areas for ideal levels of comfort throughout each zone.



Maintaining comfort levels in schools and buildings of worship isn't easy. Each classroom, hall, and auditorium presents its own challenges. Some zones may require heating while other parts require cooling. To meet these needs, CITY MULTI allows each zone to be operated and controlled independently with Variable Refrigerant Flow (VRF) technology, while large spaces can be divided into smaller zones with multiple inddor units. Recover heat energy from cooling zones and transfer it to heating zones for maximum efficiency and energy savings.



It is not always easy to stabilize fluctuating temperatures (such as solar heat gains) especially when trying to meet the heating and cooling needs of tenants in a multi-unit residential building. With VRF technology however, CITY MULTI meets - and maintains - the needs of every tenant on every floor. Tenants control their own zones or evironments, and through interconnected refrigerant lines, heat energy is transferred from zone to zone to heat or cool the areas as needed.