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Honeywell thermostat replacement wire problem

445 Views 2 Replies 3 Participants Last post by  beenthere
Im in condo the old thermostat screen broken, so I want to change the new one. Here is the old model number: t8575d2003. Which thermostat I can replace the old one?
Also the wire how to put it in? Because new thermostat terminal call R, W, Y, C, G, the old one call it 24v 50/60Hz, com, heat, cool, fan com, speed 1, speed 2, speed 3.
How can I apply to the new one?

Here is the picture from the old thermostat

picture link:
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Your old thermostat has some really weird wire colors. What is the new thermostat?
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