Heat pump thermostat wiring - A typical wire color and terminal diagram. As shown in the diagram, you will need to power up the thermostat and the 24V AC power is connected to the R and C terminals. The color of wire R is usually RED and C is BLACK. C is known as the common terminal. These two connections will ensure that there is power to the ... The Honeywell 9580 (RTH9580WF) and the Honeywell 9585 (RTH9585WF) are both Wi-Fi-compatible thermostats with several smart features, customizable 4.5-inch smart screens, and simple setup options. They both boast four-period and 7-day schedule options.
From smart WiFi thermostats with room sensors and humidification control, to programmable and non-programmable thermostats, Honeywell Home products meet a variety of needs Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow. 4.0 out of 5 stars 207. $127.99 $ 127. 99. FREE Shipping.
[[ASIN:B075BF6V58 Honeywell RTH9585WF1004/W Wi-Fi Smart Color Programmable Thermostat, V. 2.0,"C Wire Required]] (About 6 weeks later from 1st review) I don't review most products we buy, but this thermostat has added so much satisfaction I had to report it. Also I wanted to share why our old system failed.