Thermostats Category Index
Thermostat Wiring Instructions not Matching New - I have a slightly older Rheem unit with the typical slide temp adjuster thermostat. I want to replace the the old Thermostat with a digital, TP-N-721 from Vive Comfort that I have (not programmable, just...
Honeywell Heat Pump Thermostat Troubleshooting. Hello Richard! We have a Honeywell VisionPro (8000) thermostat with a Carrier heat pump that has two-stages for heating and cooling. We are having problems with the staging of the system, especially in...read more
Two-Stage Furnace Air Conditioner Thermostat Control Problem | Hi I was wondering if you can help me with a two thermostat… because I don’t think my condenser is using the second stage…. I open the thermostat and see the jumpers, but is there a way you can...read more
Thermostat Terminal Designations Explanations - You are wiring a new thermostat or about to wire a new thermostat and you want to understand what the terminal designations are on your old and your new thermostat. Why is it such a mystery with these terminal...
4 Wire or 5 Wire Thermostat Wiring Problem - Question: We have a 19-year-old condo with an old Carrier mercury thermostat. We have both a natural gas furnace and an AC unit. There are only four wires going into the existing thermostat - red, green, blue, white. On the...read more
How Can I Tell 1 or 2 Transformers for Heating Cooling System? I get this question a lot and I also see this question used in my stats on how people find the site but I do not believe I have directly addressed or dedicated an article to this subject yet but there are...
Programmable Thermostat Wiring Diagrams - Installing a programmable thermostat is not unlike installing any other thermostat for your HVAC system. The key is to get the right thermostat for your HVAC system. And to make sure it is wired properly. The subbase of a...read more
Heat Pump Thermostat Wiring Chart Diagram - HVAC - The following graphics are meant as a guide only. Always follow manufacturers instructions for both the thermostat and the HVAC system. Additional articles on this site concerning thermostats and wiring...read more
Thermostat Wiring Diagrams - Heat pumps are wired for HVAC control far differently than air conditioning systems so make sure you know the difference and correctly identify the type of HVAC system you have installed. Before you decide to change your...read more
Basic Thermostat Wiring Colors - Air Conditioner Systems - Always remember when changing a thermostat for a new thermostat to take a photo of the colors and where they go on the old thermostat or get a pencil and paper and write it down. It is better to take a good up...read more
What you will learn from How to Wire an Air Conditioner for Control - 5 Wires article: this article includes a comprehensive list showing thermostat wire terminations for an air conditioner and a source of heat that includes five wires. a detailed...read more
HVAC Products Containing Mercury and Proper Disposal - Mercury is extremely harmful to the environment and causes severe health problems in humans and animals. For many years HVAC and HVAC Controls manufacturers have used mercury in switches. Mercury is a liquid metal...read more
Honeywell Chronotherm Plus Thermostat - Trane XL19i Condenser - I have a Honeywell Chronotherm Plus 8624D running a Trane XL19i Air Conditioner with a Trane XV90 Gas Furnace - all installed new in new construction in 2003. Every winter, during the morning warm-up...read more
Data Logging Thermostats - High Performance HVAC Air Conditioning & Heating Thermostats 1) Question: Is there a thermostat for a nursing home with a print out for temperature verification? The answer..... Yes, data logger thermostats can be found here. But read on...read more
Successful Thermostat Installation Advice - High Performance HVAC wants you to be successful at the installation of your new thermostat so we ask that you read the pages here at High Performance HVAC carefully before you attempt to install your new thermostat. If...
Thermostat Wire - Thermostat wire comes in a bundle with the outer jacket of the thermostat wire being either brown or white. The bundle can have anywhere from 2 conductors inside the bundle or outer jacket and all the way up 8 or 10 conductors inside the outer brown...read more
What Temperature Should I Set My Programmable Thermostat To - 4) Please confirm this advice if you would; it is better to have your thermostat left at 70°F. to 72°F. during the day while your home is empty and adjust accordingly when you get home as opposed to...read more
Running New Thermostat Wire - It is possible that you may have to run a new thermostat wire from the air handler or furnace to the location where the existing thermostat is located. Running new thermostat wire can challenging even for professionals. If you must then...read more
How a Programmable Thermostats Works - Programmable thermostats can save you more than ten percent on your homes utility bills. For that reason a programmable can pay for itself within a few years depending on the type and expense of the type you purchase. I always...read more
What you will learn in Thermostat Wiring Colors Code article: What thermostat wire color is likely to go to which terminal on the thermostat. Basic electrical safety and standards for wiring color The function of each wire terminal on the average...read more
Types of HVAC Thermostats | HVAC Control There are many different types of thermostats. Thermostats also have various levels of complexity. Below is a list of the basic thermostat types. As we have time we will update the list to make sure it is as comprehensive as...read more
Thermostat Selection Guide - This article will help you select the right type thermostat for the HVAC system you have installed. It offers a comparison matrix for you to choose the right thermostat replacement. Get it right the first time!!! So you have made a choice...read more
The Mercury Switch Thermostat | HVAC Control - Mercury switch thermostats are not available for purchase in many states as they have been banned because they contain mercury and it is important to properly dispose of these thermostats that contain mercury if they are...read more
White Rodgers & Honeywell Thermostats - Which type and brand of thermostat do you get when selecting a new thermostat? To do that you have to know what kind of HVAC system you have installed for your heating and cooling system. Do you have a boiler with baseboard...read more
Heat Pump Thermostats - To the average person a heat pump thermostat can be a very complicated thermostat compared to the typical thermostat which serves an air conditioning system with gas, electric, or an oil furnace. Of course, the heat pump thermostat typically...read more
What you will learn from Troubleshooting Broken Thermostats article: One of the most common trouble calls for HVAC Basic checks of the thermostat to see if it is broken or? The basics of the thermostat Learn what a heating anticipator is and what...read more
Wireless WiFi Smart Thermostats - The future of wireless thermostat has already arrived as there are a handful of wireless thermostats available on the market now. These are the forefathers of wireless thermostats and offer basic functions that the average wired...read more
How to Hook Up a Home Thermostat - If you need to install a new thermostat then you have found the right place to learn. Below we will describe to you how to hook up a digital thermostat, hook up a programmable thermostat, or hook up any type for that matter. Whether...read more
Blank Display on Thermostat Problem - Screen Disappeared - The thermostat display is our interface with our HVAC equipment. The display lets us know what the temperature is in the house. The display tells us what the desired settings are including letting us know the...read more
the most common trouble call by service and repair HVAC companies about thermostat wire with a resource for more information the best advice for changing your thermostat the most common mistakes made by DIY thermostat changers the importance of...read more