Minimum Requirements – the following must be in place for the adapter to be compatible:How to Check if Your Air Conditioner is Compatible with Dropair Adapter
Upgrading to a smart thermostat like Nest, Ecobee, or Honeywell? Before installing the Dropair adapter, you must ensure your air conditioning system is compatible. This step-by-step guide will help you perform a Dropair compatibility check and avoid installation issues.

1. Identify Your AC System Type
Air conditioners generally fall into two categories:
Chiller Water System (100-240V Thermostat)
- If your AC unit runs on 100-240V, it uses a chiller water system.
- You will need the Dropair Pro series adapter to ensure compatibility.
Refrigerant System (2-4 Wire DC Voltage Thermostat)
- AC units operating on 2-4 wire DC voltage thermostats belong to this category.
- Further verification is required before installing the Dropair adapter.
2. Check Your AC Brand and Model
Compare your AC brand and model with Dropair’s supported brands, including:
✅ LG, Daikin, Mitsubishi, Hitachi, Hisense, Carrier, Trane, Gree, Samsung, Toshiba, and Panasonic.
If your unit is listed, proceed to the next step.
3. Verify Thermostat Wiring
Your thermostat wiring determines whether Dropair can be installed.
✅ If the existing thermostat cable can be replaced with a CAT6 cable, Dropair will work.
❌ If replacement isn’t possible, the Master and Slaver solution must be used.
4. Ensure Power Supply Availability
Your system must include:
- ✅ Two power connections
- ✅ One 568B RJ45 connector
- ✅ One indoor unit connection
If your setup meets these requirements, Dropair is likely compatible.
5. Contact Support for Assistance
If you’re unsure, send the following details to Dropair’s support team:
📸 A clear image of your thermostat
📑 Wiring diagram
🔢 Model number of the indoor unit
🔍 PCB (Printed Circuit Board) photo of the indoor unit
Final Thoughts
Performing a Dropair compatibility check is essential before installation. By following these steps, you can confirm if your air conditioner supports smart thermostat integration. Need assistance? Reach out to Dropair’s support team for expert advice.
Compatibility
Brand | Series | Wire Type | Adapter Type |
LG | All series | Wireless | Mini6 |
LG | Series which support master and slaver RC | 2-wire | Mini6S |
Mitsubishi Electric | Series with CN90 | 4-wire | Mini6 |
Mitsubishi Electric | All series | 2-wire | Mini6S |
Daikin | All series with P1&P2 connector | 2-wire | Mini6S |
Daikin | QATO package series with CN-WIR | 2-wire | Mini6S |
Daikin | Series with CN2 | 4-wire | Mini6 |
Daikin | Wall mounted series with S403/S21 | 4-wire | Mini6S |
Hitachi | Series with 2-wire RC | 2-wire | Mini6S |
Hitachi | Series with 4-wire RC | 4-wire | Mini6 |
Hisense | Series with 2-wire RC | 2-wire | Mini6S |
Hisense | Series with 4-wire RC | 4-wire | Mini6 |
York VRF | Series with 2-wire RC | 2-wire | Mini6S |
York | Series with CN10/CN7/CN6 | 4-wire | Mini6 |
Carrier | Series with CN10A /CN10/CN15 | 4-wire | Mini6 |
Carrier | Series with 2-wire RC | 2-wire | Mini6S |
Midea/Bosh/Vaillant | Series with CN10A /CN10/CN15 | 4-wire | Mini6 |
Supper General/Westinghouse | Series with CN10A /CN10/CN15 | 4-wire | Mini6 |
System air/Clivet | Series with CN10A /CN10/CN15 | 4-wire | Mini6 |
Cooper Hunter | Series with CN10A /CN10/CN15 | 4-wire | Mini6 |
Lennox | Series with CN10A /CN10/CN15 | 4-wire | Mini6 |
Lennox | Series with 2-wire RC | 2-wire | Mini6S |
Trane | Series with CN10A /CN10/CN15/CN29 | 4-wire | Mini6 |
Trane | Series with 2-wire RC | 2-wire | Mini6S |
Gree | All series | 2-wire | Mini6S |
Samsung | Series with CN501 | 4-wire | Mini6 |
Samsung | Series with F3&F4 connector | 2-wire | Mini6S |
Toshiba | Series which RC has 11P-CN2 | 4-wire | Mini6 |
Toshiba | All series | 2-wire | Mini6S |
Chigo | All series | 4-wire | Mini6 |
Panasonic | All series | 2-wire | Mini6S |
Panasonic | Series with CN10A /CN10/CN15/CN-DISP | 4-wire | Mini6 |
Mitsubishi Heavy Industries | Series with 2-wire RC | 2-wire | Mini6S |
Haier | Series with 2-wire RC | 2-wire | Mini6S |
O General/Fujitsu | Wall Mounted type with CN6 | 4-wire | Mini6S |
O General/Fujitsu | All series with 3-wire thermostats | 2-wire | Mini6S |
O General/Fujitsu | Series with CN13, CN18, CN48 | 4-wire | Mini6 |
Thermostat Type | Supported Thermostats | Wiring | |
AC24V Thermostat | Nest Learning Thermostat 2nd gen or 3rd gen, Nest Thermostat, Ecobee, Honeywell Lyric, Control4, Aprilaire thermostat, Tuya, McoHome, Moorgen, HDL | Wired | |
RS485 Thermostat | Lutron Palladium Thermostat | Wired | |
AC220V Thermostat | Heatmiser, Tuya, Orvibo, need to add iPanel between adapter and the thermostat | Wired |
Connections:
Two connections for power supply
One connection for 568B RJ45 connector
One connection for the indoor unit
Product Requirements:
Smart Thermostat
100-240V power supply
DC voltage-controlled indoor unit
Checking Compatibility – How to Tell if Dropair Will Work with AC
Follow these steps to check compatibility:
Determine the system type:
If the indoor unit is controlled by a 100-240V thermostat, it is a chiller water system, requiring a Dropair Pro series adapter.
If the indoor unit is controlled by a 2-4 wire DC voltage thermostat, it is a refrigerant system, requiring further checking.
Confirm refrigerant system compatibility:
Check the brand and indoor unit model to ensure compatibility with the Dropair adapter.
Check the thermostat cable:
If the original thermostat’s cable can be replaced by a CAT6 cable, it is compatible.
If the cable cannot be replaced, the Master and Slaver solution is required.
Ensure power supply availability:
Verify that you can provide the necessary power cable for the adapter.
Consult if unsure:
If uncertain, provide a photo of the original thermostat, diagram, model number, and PCB photo of the indoor unit.