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Switching from Daikin one + to Nest Wiring

Patrick1313
Community Member

My old Daikin One + thermostat has a data 1, data 2, C and R. What should I be installing for my best thermostat 

 

 

1 Recommended Answer

CoolingWizard
Silver Product Expert
Silver Product Expert

Patrick1313, your Diaken model uses a proprietary communication protocol to talk to the outdoor unit.  This is why you see DATA+ and DATA- (Data1 and Data2).  That thermostats communicates in a digital nature and not analog.  The nest thermostat will not work in that environment.  HVAC equipment manufacturers are starting to take this approach stating it allows them to  more effectively manage the systems,  All it really does is drive up the price of the systems and make you use a very expensive proprietary thermostat.  

NestPro and HVAC company owner

View Recommended Answer in original post

1 REPLY 1

CoolingWizard
Silver Product Expert
Silver Product Expert

Patrick1313, your Diaken model uses a proprietary communication protocol to talk to the outdoor unit.  This is why you see DATA+ and DATA- (Data1 and Data2).  That thermostats communicates in a digital nature and not analog.  The nest thermostat will not work in that environment.  HVAC equipment manufacturers are starting to take this approach stating it allows them to  more effectively manage the systems,  All it really does is drive up the price of the systems and make you use a very expensive proprietary thermostat.  

NestPro and HVAC company owner