I currently have two Honeywell CT-87 Round Thermostats, one for heat and one for A/C. They are located right next to one another. I would like to replace the two thermostats with a digital programmable. Need help with the wiring. Heat is 3 wire and A/C is also 3 wire. Need help connecting to new programmable LUXPRO PSPA711

You have to complete separate thermostats from your post. You will be much better served by professional ON SITE help. Combining two 3 wire systems can be very tricky. You can possibly cause damage if not done correctly.

One tip. Dump the LUXPRO and get a Honeywell or White Rodgers thermostat.You will be much happier with a different thermostat