CAN THE G4CVZ replace th6220d1028

[MDT505]

I am trying to replace my Honeywell 6220d1028 with a 4th Gen G4CVZ. some places tell it will work; other places it tells me incompatible.  Does anyone know if it will work 

[gmelanymelissa]

Hi MDT505,

Thanks for reaching out to the community. I understand you're looking to replace your Honeywell 6220d1028 with a Nest Learning Thermostat (4th gen), but you're concerned about compatibility. No worries, help is here!

To better assist you with accurate information, I'd like to ask a few questions:

• What type of HVAC system do you have (conventional or heat pump system)?
• Would you mind sharing a picture of the wiring at your Honeywell thermostat? This will help me to identify if your system is compatible.

Keep me posted.

Best regards,

Melany