Nest Thermostat Compatibility Guide (UAE)

Nest Gen3 Thermostat (U.S version) general requirements
  • Nest Thermostats are designed to work with 24V US spec AC systems. They require installation of a conversion kit as well as bypassing of PCB in order for them to work with 220V UAE AC systems
  • Nest Thermostats can be retrofitted to work on single and 3 fan speed modes
  • Single fan speed mode requires the presence of 4 wires to thermostat location
  • Three fan speed mode requires the presence of 6 wires
  • Thermostat locations with 3 wires, requires the installation of an additional wire saver module to add the 4th wire for single fan speed.
  • Less than 6 wires at a thermostat location requires the pulling of a new set of 6 wire panel cables for three fan speed activation.
Non-compatibility: cases where Nest cannot be installed
  • AC units with inverter compressor or DC current fan motor (solutions for LG, OGeneral and Mitsubishi ACs using bespoke interface are available)
  • Window type AC units
  • VRV type ACs
  • Where ACs are connected to a BMS or wired smart home system
  • Chilled water systems with modulating actuator motor (1-10v)
  • UK and European spec Nest thermostats are designed to work with boilers and water heaters and are not configured to work with AC systems
Specific compatibility guidelines
Apartments:
  • As a general rule, apartments located within towers are typically served by a central chiller, as such would have 6 wires
  • In some newly build apartments with modulating actuator motors, there would a requirement to replace actuator motors with standard on/off models. This can only be established post inspection. Cost of actuators motors varies between AED 350-500 per unit. In very rare cases, valve assembly would also have to be replaced (cost AED 1500 per unit)
District cooling:
  • AC units within areas with district cooling such as the Palm, Jumeirah Islands, JLT, Motor City and Sports City would have thermostats with 6 wires
Villas: (in non district cooling areas)
a) LG:
  • Found in majority of Emaar villas across Springs, Meadows and Arabian Ranches as well as Al Furjan
  • All units have 3 wires to thermostat location
  • Requires installation of an additional module (add 4th wire) for single fan speed
  • Three fan speed requires pulling of 6 wires. Smaller capacity units have single stage fan that requires installation of fan transformer (AED 390)
  • New LG ACs with modulating compressor and DC fan motor. Require installation of a bespoke Nest interface/module approx cost (AED 660) per module
b) OGeneral:
  • Found in many Emaar villa communities.
  • All units have 3 wires to thermostat
  • Requires installation of an additional module for single fan speed.
  • Three fan speed requires pulling of 6 wires 
  • New OGeneral ACs with modulating compressor and DC fan motor. Require installation of a bespoke Nest interface/module approx cost (AED 850) per module
c) York & Daikin:
  • Both York and Daikin units would have 4 wires through to thermostat location
  • York prevalent in The Villa project. Daikin is installed in all Arabian Ranches 2 communities 

d) Trane:

  • Older units would  have 8 wires through to thermostat location 
  • Newer units with LCD type thermostat would have 2 wires going to thermostat location
  • Prevalent in Jumeirah Park and other Nakheel communities
d) Carrier:
  • Mexican spec : 4 wires
  • Egyptian spec: 5 wires (found in Damac Hills), requires wire saver for 3 fan speed.
  • Egyptian spec: 4 wires (found in Arabella Mudon), ACs would have DC fan units. Requires bespoke interface. 
e) Rheem : 6 wires found in Mira and 5 wires found in Lantana
f) American breeze: 6 wires found in some older Emaar villas in Meadows and Lakes as well as Jumeirah Islands 
g) Mitsubishi: All Mitsubishi units require pulling of new wires as well as installation of an interface (provided CN90 connector is present on PCB). Found in older villas of non-free hold communities
h) Honeywell: Very rarely installed in villas. Would typically have 6 wires
i) Siemens: 7 or 8 wires, found in some Jumeirah Park villas
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Showing 22 comments
  • Noora Al Muhairi
    Reply

    Good afternoon,

    I would like to enquire about the installation service for the nest thermostat, i have a ogeneral ac system for a bedroom and would like to know if its compatible and can install a nest thermostat…. What is the quotation? And does it include the installation only and the thermostat is charged separately… I live in abu dhabi, so is it possible to install…. Thanks

    • Host-Homeiqoo-Admin
      Reply

      Hi Noora,
      Yes the Nest can be installed on OGeneral AC. There would be two installation options, single fan speed including wire saver module (OGeneral has 3 wires and Nest needs 4 wires) cost AED 725. Three fan speed (low, medium and high) would require pulling new 6 wire cable. Cost wise, installation would be AED 650 + AED 300 to pull new wires. The Nest Gen3 is AED 950 per unit.
      We do undertake installations in Abu Dhabi, a transport fee would apply
      Please let us know if you require any additional information

  • Chris
    Reply

    Hi, is Nest or Nest E compatable with Arabian raunches 2 Daikin units.

    • Host-Homeiqoo-Admin
      Reply

      Hi Chris, the Daikin has the 4 wires required for the Nest E so single fan speed conversion is possible

  • Vladimir
    Reply

    Hi, i have 6 units of Trane OLD type, but not 8 wires my one all of them 10 wire going to termostat. Community JVT (Villa) Just what to ask any additional cost to instal Nest 3gen termostat?
    Thanks

    • Host-Homeiqoo-Admin
      Reply

      Hi Vladimir,
      In case of 10 wires, there would be no requirement to pull any additional wires.
      Regards
      Sameer

  • Deepak
    Reply

    Hi I have Chiller water system. Is Nest thermostat compatible

    • Host-Homeiqoo-Admin
      Reply

      Hi Deepak, yes Nest can be installed with chilled water (FCU) systems. Should the building be new you would need to check that you have an on/off actuator motor rather than a modulating one

  • Naeem NM
    Reply

    I live in Remraam al thamam and want to know if i need to install anything else prior to installing the nest

    • Host-Homeiqoo-Admin
      Reply

      HI Naeem, the nest thermostat is a 24V system, installation with UAE AC system requires additional conversion parts to deal with voltage difference as well as by passing of the current AC control unit.
      Regards
      HomeIQ Support

  • Vic
    Reply

    Hi, I have Honeywell Lyric™ T5 Wi-Fi Thermostats (RCHT8610WF), can they be fitted to new R410 O General 3 wire AC units (ARGA45FMTA)?
    I know for a fact, these units require a “C” wire.

    • Host-Homeiqoo-Admin
      Reply

      Hi Vic,
      The Honeywell is a 24V system. Installation with UAE 220V ACs requires installation of additional conversion parts as well as by passing of AC current control unit. The Honeywell does require 4 wires.
      Regards
      HomeIQ Support

  • Michael
    Reply

    Hi,
    I have trane 2 wire thermostat in my place. Can someone tell me if nest will work and how to connect the black and red wire on the nest?

    M

    • Host-Homeiqoo-Admin
      Reply

      Hi Michael, installing Nest Thermostat with your 220V Trane AC would require installation of conversion parts, pulling of 6 wire cable as well as rewiring the indoor unit to bypass the AC control board. The above is included in our certified Nest PRO installation
      Regards
      HomeIQ Support

  • Ben
    Reply

    Hi,
    I am looking to install a Nest thermostat in a new house in Dubai Hills Estate.
    The current system is Midea. Is it possible to install a Nest here?

    • Host-Homeiqoo-Admin
      Reply

      Hi Ben,
      Installation of Nest with 5 wire Midea AC is possible. There would be two installation options; 2 fan speed using the existing 5 wires, for 3 fan speed installation we would also need to install a wire saver module that provides the required 6th wire.
      In terms of costings, the Nest Gen3 thermostat is AED 899+VAT and comes with 2 years warranty. 2 fan speed installation AED 595+VAT including cost of conversion parts. 3 fan speed installation would be AED 595+175 for the wire saver so total installation AED 770+VAT
      Please let us know if you require any additional information
      Regards
      HomeIQ Support

  • yousef
    Reply

    I have York system but when I checked for the wires I can only see 3 wires , can I install nest e ?

    • Homeiq Supreadmin Supreadmin
      Reply

      Hi Yousef, the York thermostats would usually have 4 wires. Installation of nest E would be possible, these would still require installation of conversion parts as well as rewiring of the AC system
      Regards
      HomeIQ Support

  • harry
    Reply

    Hi , Do you know if this will work in AL Zenia apartments in Rahba Beach, Abudhabi

    • Homeiq Supreadmin Supreadmin
      Reply

      Hi Harry, thank you for contacting HomeIQ.
      Nest thermostats require installation of additional conversion parts as well as rewiring of AC for them to work with UAE 220V systems. These are included in our installation service. Moreover, Al Zeina apartments in Raha beach would have a modulating actuator motors which the nest is unable to control. These would need to be replaced with standard on/off models
      Please let us know if you require any additional information
      Regards
      HomeIQ Support

  • Wael
    Reply

    Hi, is Nest compatable with Damac hills villas Daikin units , how much would be the installation cost for single and 3 fan speed ?

    • Host-Homeiqoo-Admin
      Reply

      Hi Wael,
      Villas in Damac Hills would have a 5 wire Carrier AC. Cost of 3 fan speed installation would be AED 595+VAT plus AED 175+VAT for the wire saver module that provides the required 6th wire.
      Please let us know if you require any additional information
      Regards
      HomeIQ Support

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