DropAir

Keep your AC. Add any smart thermostat.

DropAir adapters connect Nest, ecobee and Honeywell thermostats to VRF, ducted, split and fan coil air conditioning. No new AC, no transformer, one thermostat per room.

Which brand is your AC?
Daikin compatibility guide

We reply with the adapter that fits, a price, and an installation option.

How a DropAir adapter connectsThe AC indoor unit connects to the DropAir adapter, which gives the thermostat standard R, C, W, Y and G terminals. Indoor unit Daikin Control bus DropAir adapter Thermostat
R power, C common, W heat, Y cool, G fan. The adapter translates them for your AC.

Pick the adapter for your system

Not sure? Send a photo of the indoor unit label and we'll tell you.

DropAirMini 6Mini 6Wall split, ducted and VRF indoor units in homesDropAirMini 6SMini 6SHomes that want to keep the original controller, and two or three-wire busesDropAirPro 6SPro 6SChilled water fan coil units, 2-pipe and 4-pipeDropAirPro 6XPro 6XLarger homes, offices and smart home integrationsDropAiriPaneliPanelBuildings with 220V wall thermostats

No new AC

The adapter connects to your indoor unit's existing control port. Nothing inside the AC is modified.

Built-in 24V power

Smart thermostats need constant power. DropAir supplies it, so there's no transformer or C wire to add.

One thermostat per room

Every indoor unit gets its own thermostat and schedule, so empty rooms stop cooling all day.

Buy it, or have it installed

Every order starts the same way: you send your AC details, we confirm compatibility and price. Then you choose.

  1. Send your AC brand and modelA photo of the indoor unit label is enough.
  2. We confirm the fit and priceAdapter, thermostat if you need one, and installation if you want it.
  3. Delivery or installationSupply ships with a wiring diagram. Installation is done and tested by our technicians.

Supply only

For HVAC contractors and confident installers. Adapter, wiring diagram for your AC model, and setup help on WhatsApp.

Get a supply quote

Supply and installation

We fit the adapter and thermostat, test every mode and set up the app. In Saudi Arabia, Qatar, Kuwait, Bahrain and Oman.

How it works

Works with the brands you have

Compatibility is confirmed by indoor unit model, not just brand.

DaikinMitsubishi ElectricSamsungO General / FujitsuCarrierYorkLGToshibaMideaLennoxBoschVaillantSystemAirCooper HunterSuper General

Thermostats it works with

All thermostats

Google Nest Learning Thermostat

Learns your schedule and sets itself. 2nd and 3rd generation are listed as supported by the manufacturer.

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Google Nest Thermostat

The simpler Nest, with schedules and app control.

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Nest Thermostat E

Listed as compatible with the Pro 6S for fan coils.

Get bundle quote

ecobee smart thermostats

Room sensors and app control. Listed as compatible across DropAir models.

Get bundle quote

Guides

All guides
CompatibilityHow to connect a Nest or ecobee thermostat to a VRF or VRV systemNest and ecobee expect 24V wiring. VRF indoor units talk their own language. Here's how the two get connected.8 min readBrandsDaikin VRV and smart thermostats: P1/P2, S21 and what actually worksDaikin units use the P1/P2 bus and, on many splits, an S21 port. Here's what that means for Nest and ecobee.7 min readBrandsUsing Nest or ecobee with Mitsubishi Electric AC: CN105 and M-NET explainedMitsubishi Electric splits use a CN105 port. City Multi VRF runs on M-NET. Here's how a smart thermostat fits in.6 min read

Questions people ask first

Will an adapter affect my AC warranty?

The adapter connects to the indoor unit's existing control terminals and doesn't modify the unit. Warranty terms are set by your AC maker and installer, so check yours. We can send the wiring diagram in advance.

Can I control each room separately?

Yes. Each indoor unit gets its own adapter and thermostat, so every room keeps its own schedule.

Why is there no price on the site?

The right model depends on your AC brand, system type and number of rooms. Send those on WhatsApp and we reply with an exact price.

Do you ship worldwide?

Supply orders ship internationally with a wiring diagram for your AC model. Installation is available in Saudi Arabia, Qatar, Kuwait, Bahrain and Oman.