Thermostat fan speed

[Juju72887]

Hi,

we have a daikin mini split system (model 

5MXS48WVJU9) and have these google nest thermostats. Having serious condensation issues and hvac / mechanical engineer want to know if there is a way to control the fan speed. We are having serious condensation issues and HVAV / Mechanical engineer said it is the nest issue with the system 

anyone have documentation on this that I can share with HVAC

[CoolingWizard · Accepted solution]

If you have a Nest Learning Thermostat 3rd or 4th generation, then yes, it can be programmed for up to 3 fan speeds.  The fan speeds are Low Medium and High.  If the nest was not set up with multiple fan speeds, it’s simply activates the G wire and lets the equipment choose the speed of the fan.

AC Cooling Wizard