Nest Thermostat Compatibility Guide (UAE)

Nest Gen3 Thermostat (U.S version) general requirements
  • 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
  • Window type AC units
  • VRV type ACs
  • Some Package/Split combo units where wiring cost could be prohibitive
  • Where ACs are connected to a BMS or wired smart home system
Specific compatibility guidelines
  • As a general rule, apartments located within towers are typically served by a central chiller, as such would have 6 wires
  • In few cases there might be a requirement to replace actuator motors when they are of different voltage 1-10V. This can only be established post inspection. Cost of actuators varies between AED 350-500 per unit. In very rare cases, valve assembly would also have to be replaced (cost AED 1000 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
  • 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 350)
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
c) York & Trane:
  • Both have 4 wires through to thermostat location
  • Prevalent in The Villa project, 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
e) Rheem : 6 wires found in Mira and Lantana
f) American breeze: 6 wires found in some older Emaar villas in Meadows and Lakes
g) Mitsubishi: 2 wires, requires pulling of new wires in all cases. 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 2 comments
  • Noora Al Muhairi

    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

      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

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