Fujitsu 15RLS2 Manual - Page 31

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Multi-Zone Outdoor Units

AOU18RLXFZ, AOU24RLXFZ, AOU36RLXFZ

Part of the Halcyon Hybrid Flex Inverter (HFI) Line

As part of the Halcyon HFI line of equipment, select indoor units are compatible with other HFI outdoor units, meaning

mix and match capabilities with fewer components.

Connectable Capacity

This function allows you to connect indoor units that can exceed outdoor unit capacity

. However, if you connect indoor units that exceed 100% of the outdoor unit's capacity there are limitations.

details)

If all indoor units are cooling or heating at the same time, the system will limit their capacity so that their total matches

the outdoor unit's capacity. When a zone meets a desired set temperature it requires less capacity. The unused

capacity is then distributed to the remaining indoor units, increasing their capacity.

For Example

The load on a 3-bedroom home with a living room and kitchen downstairs and 3 bedrooms upstairs is 39,000 BTUs (21,000

BTU downstairs and 18,000 BTU upstairs). However the family isn't upstairs and downstairs at the same time, therefore not

all units will be running simultaneously allowing 100% heating or cooling to occupied spaces. This can be achieved by our

AOU36RLXFZ outdoor unit.

Flex Zone Outdoor Unit

AOU48RLXFZ1

Halcyon HFI Flex Zone system's zoning capability allows you to set each indoor unit to a different temperature - that

means you can set up to 8 different temperatures as needed! This system provides individual temperature control

throughout your home or business so each room, zone or floor will be the temperature you set! An optional Central

Remote Control is available which can control up to all 8 indoor units from one keypad. Additionally, you can set

timers - 24-hour timer and sleep timer - for your convenience.

130% Connectable Capacity

The HFI system is rated at 48,000 BTUs but you can connect up to 130%, or 62,000 BTUs of rated indoor unit

capacity to the AOU48RLXFZ1. Connectable capacity allows you to connect indoor units that can exceed outdoor

unit capacity

(See sizing guide on page 44 for details)

unit's capacity there are limitations.

If all indoor units are cooling or heating at the same time, the system will limit their capacity so that their total matches

the outdoor unit's capacity. When a zone meets a desired set temperature it requires less capacity. The unused

capacity is then distributed to the remaining indoor units, increasing their capacity.

For Example

The load on a small 2-story office building with a business downstairs and worker apartments upstairs is 62,000 BTUs

(38,000 BTUs downstairs and 24,000 BTUs upstairs) but the workers aren't upstairs and downstairs at the same time,

therefore not all units will be running simultaneously allowing 100% heating or cooling to occupied spaces.

18, 24 and 36,000 BTUs

48,000 BTUs

. However, if you connect indoor units that exceed 100% of the outdoor

18, 24, 36,000 BTUs

(See sizing guide on page 43 for

48,000 BTUs