Other models may use push-in terminals or another connection system. It does provide both heating and cooling and I am trying to connect an Ecobee and have to map those wires to the normal Rc, Rh, C, G, W, Y1, Y2. Step 2 - Turn Off the Electrical Power Go to the circuit breaker panel and turn off the breaker that feeds electricity to the baseboard heater. In this article, I am going to explain the function and wiring of the most common home climate control thermostats. Now most thermostat's will not have all of these termination points but the chart will help you determine color code and connection points for your particular unit. This article gives a table showing the proper wire connections for Honeywell brand wall or room thermostats used to control heating or air conditioning equipment.
A basic two-wire thermostat can be compared to a simple single-pole switch that you will find throughout your home, only instead of you turning the switch on and off as required, a mechanical or electronic temperature controlled mechanism is the operator of the switch. So we decided that we could do without the fan switching function that the G wire normally provides, in favor of the remotely programmable capabilities of a Wi-Fi smart t-stat that must have a C wire in order to function. Field inspection worksheets are included at the back of the volume. Most thermostats use letters to designate the wire terminals. Set dip switches per Honeywell instructions. Check to see if you need a permit.
On the old round unit the red wire went to the R terminal, the white wire went to the w terminal and a green wire went to B terminal. I attempted to replace my thermostat with a fancy new Trane z-wave enabled model. A new system may need as many as ten wires like a two-stage heat, two-stage cooling system, heat pump reversing valves, fan control, etc. Aug 22, 2014 Robert said: Super! On another note, the instructions kept mentioning that multi stage thermostats shouldn't be used on single stage units. Now that you are armed with a basic understanding of the temperature control system in your home, you should now be able to identify what kind of system you have, and what type of functions you will need if replacing or up-grading your existing thermostat. It's going to take a little research on the owners part to declare what is involved with your heat pump system and verify proper color codes.
This has made the units more efficient, with added safety features, and with this comes increased difficulty for the average home-owner to repair or replace any parts of the system that may break down and they will, but only when you really need it! A Pro1 T725 was used as the previously thermostat even though it's really for a heat pump. This relatively small device is responsible for controlling the level of heat in your home during the cooler months. I will explain that in a little more detail further down this page. Typical 4 wire thermostat t-stat wiring examples follow. Connect each wire to the appropriate terminal, working one wire at a time. From there, you should have a clean run through the attic, then down the boiler room wall.
It must be professional, it must be technically correct, and above all, it must focus on safety. The baseboard heater thermostat helps you regulate the temperature in the room that contains the heater. Honeywell WiFi Thermostat wall plate, showing a typical 4-wire hookup. Special Offer: For a 5% discount on any number of copies of the Home Reference eBook purchased as a single order. Mounting plate with four wires, of the Honeywell large dial thermostat, model T87N1026. But an important issue here is that the diagrams and wiring color codes are going to be the most common standardize method. Attach the bare or green wire to the load ground wire.
Therefore when buying a thermostat, you should ensure that it complies with the parameters of your heater. These additional terminals are not shown in this diagram. If you have the original instructions for the old thermostat take a quick look at the installation instructions to how the old thermostat disassembles. Finally attach the pigtail to the heater ground screw. Just take a look at the picture below the diagram. In this the most basic of heating systems, as the temperature of the heat exchanger rises, another contact is closed on the line voltage side of the equation, and the fan blower motor starts moving air through the heat exchanger and out through the ducting in the home. Take the cover off the transformer and install the boiler thermostat wiring to the corresponding terminals in the transformer.
The W, Y and G terminals should be pretty straight forward on most all types of thermostat's. Step 6 - Mount the Baseboard Heater Thermostat You are now ready to mount the thermostat to the baseboard heater or to a side wall depending on the thermostat type. If you don't have a C wire, consult the manual for options. You can use a pen or pencil and wrap one of the wires around the pen or pencil so the thermostat wire will not slip and fall into the hole in the wall. Insert the wires into the corresponding terminals on the thermostat and tighten the terminal screws. The 100 volts powers the circulating pump and blower unit so that the transformer acts as a relay between the individual zone valves and circulating pumps.
The load connection, on the other hand, will tie in with the wires for the heater. Submit a Comment Your email address will not be published. Taking a break from driving all over the country for 3 years, staying in the Florida summer heat — we had to solve this problem, and did so using a. Explaining to home owners or do-it-yourselfer's about thermostat wiring. Besides, you would have to pull new thermostat wire through the wall to relocate the thermostat and that is a big job for anyone.