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Thermostats play a crucial role in controlling heating and cooling systems, ensuring comfort and energy efficiency. When examining thermostat wiring, you may come across a brown wire that is occasionally left unconnected. In this article, we will explore the significance of the brown wire in thermostat wiring and why it may be absent in certain installations.

Understanding Thermostat Wire Colors:

Thermostat wiring typically employs standardized wire colors, though variations may exist depending on specific systems or regions. The common wire colors and their functions are as follows:

Red (R): The red wire carries the power (24-volt AC) from the HVAC system’s transformer to the thermostat, enabling its operation.

White (W): The white wire controls the heating system. When the thermostat calls for heat, it activates the heating system, such as a furnace or boiler, through this wire.

Green (G): The green wire is responsible for controlling the HVAC system’s fan or blower. It triggers fan operation when the thermostat signals the need for air circulation.

Yellow (Y): The yellow wire governs the cooling system, typically an air conditioner. When cooling is required, the thermostat sends a signal through this wire to activate the cooling system.

Blue (C): The blue wire connects to the common (C) terminal, serving as the return path for the 24-volt AC power supply. It provides continuous power to the thermostat, eliminating the need for batteries in some cases.

The Enigma of the Brown Wire:

While the aforementioned wire colors are standard, the presence of a brown wire in thermostat wiring may seem puzzling. The brown wire, if present, is usually intended for connecting the thermostat to an emergency heating system or backup heating system. This auxiliary system serves as a backup when the primary heating system, such as a heat pump, fails to adequately heat the space.

However, it is important to note that not all thermostat models or HVAC systems require an emergency heating system. Consequently, the absence of a connection for the brown wire or its non-utilization is entirely normal. Thermostat manufacturers design different models to accommodate a wide range of HVAC configurations, including those without an emergency heating system.

In installations where the brown wire is not connected, it signifies that the thermostat’s HVAC system model doesn’t have an emergency system connected to it. This absence may be due to several factors, such as the specific HVAC system not featuring an emergency heating option or the thermostat model not supporting the connection.

It is crucial to follow the installation instructions provided by the thermostat manufacturer and consult the system’s wiring diagram to understand the correct wire connections for your specific setup. Misconnecting wires can lead to improper functioning of the HVAC system or even potential damage.

The Importance of Correct Wiring: Proper thermostat wiring is essential for the efficient operation of the HVAC system. Incorrectly connected wires can result in a range of issues, including improper temperature control, system malfunctions, and even damage to the equipment. Therefore, it is always advisable to refer to the thermostat’s documentation and seek professional assistance if needed.

If you are unsure about the wiring configuration or have any doubts, it is best to consult a qualified HVAC technician. These professionals have the knowledge and experience to ensure accurate installation and wiring connections, providing peace of mind and optimal system performance.

Conclusion: Thermostats rely on a specific set of wire colors to control heating, cooling, and fan systems. While the brown wire is not among the standard colors, it serves a crucial purpose in connecting a thermostat to an emergency heating system. However, if the brown wire is not present or left unconnected in your thermostat, it is likely because your specific HVAC system model does not require or suppor

t an emergency heating system.

When it comes to thermostat wiring, it’s essential to understand the wire color conventions specific to your system. While the standard wire colors mentioned earlier are commonly used, there can be variations and additional colors depending on the manufacturer or HVAC system.

In some cases, the brown wire may be used for functions other than connecting to an emergency heating system. It’s important to consult the documentation or wiring diagram provided by your thermostat manufacturer to determine the intended purpose of the brown wire in your specific system.

If you find a brown wire in your thermostat wiring and it is not connected, there’s no need to be alarmed. The absence of a connection for the brown wire signifies that your particular HVAC system does not have an emergency heating system connected to it. This is a common scenario in many installations.

Thermostat manufacturers design different models to accommodate a variety of HVAC systems, and not all systems require or support the use of an emergency heating system. Therefore, the brown wire may not be used or connected in these situations. It is simply a matter of compatibility between the thermostat model and the HVAC system.

It is worth noting that while the brown wire is commonly associated with emergency heating systems, other wire colors, such as orange or black, may also be used for this purpose in certain HVAC systems. Always refer to the documentation or wiring diagram specific to your thermostat and HVAC system for accurate information on wire connections and functionality.

Proper thermostat wiring is crucial for the correct operation of your HVAC system. Incorrect connections can lead to malfunctions, improper temperature control, or even damage to the equipment. If you are uncertain about the wiring or have any concerns, it is strongly recommended to consult a qualified HVAC technician.

A professional technician can accurately assess your system, identify the correct wiring configuration, and ensure that all connections are made properly. They have the expertise to troubleshoot any issues and provide necessary adjustments or repairs to ensure optimal performance and energy efficiency of your HVAC system.

In conclusion, the brown wire in thermostat wiring is typically associated with connecting to an emergency heating system. However, its absence or lack of connection in your thermostat does not necessarily indicate a problem. It simply means that your specific HVAC system model does not require or support the use of an emergency heating system. Always refer to the manufacturer’s documentation and seek professional assistance when in doubt to ensure proper thermostat installation and wiring connections.

As far as heating and cooling components of your home go, there is literally nothing more important to your entire system than the thermostat control module that you decide to leverage. While there is a lot of talk in the industry regarding power saving and energy-efficient heating and cooling units, the pros and cons of central air, and even which manufacturer is the most reliable and trusted in the business, none of that amounts to a hill of beans if you don’t have a reliable and effective control system to run the whole show. Luckily, the Ecobee smart thermostat full-color touchscreen unit is just that kind of control system, one of the most stunning both visually and control wise thermostats on the market today.

While it is a bit larger than most thermostats you’re used to using or seeing in homes, especially if you’re using those old turnout solutions that have been so popular in house building for the last hundred years or so, the Ecobee smart thermostat full-color touchscreen is absolutely the next generation of thermostat control systems. While this is certainly not the first or only touchscreen unit on the market today, it is one of the few reliable full-color screens at this price point, making it one of the smartest tools you could invest in. There are other backlit solutions that look nothing like this, which is closer to a cell phone or tablet interface than anything else.

The specs of ‘ecobee EB-STAT-02 Smart Thermostat 4 Heat-2 Cool with Full Color Touch Screen’ are:

• Manufacturer: e-concept Distribution France
• Product Dimensions: 10.8×6.1×3.4 inches
• Shipping Weight: 1.7 pounds

>>Click here to find more details price reviews and ratings of Ecobee Smart Touch Screen Thermostat…

With built-in WiFi  you’ll be able to instantly connect to any of your devices through the Internet, helping you to moderate and control your home’s heating and cooling system even when you’re not in the building. This brings us to the simple fact being that you’ll be able to use your new Ecobee smart thermostat full-color touchscreen in with your favorite Google Android or Apple iPhone smart phone or tablet solution and enjoy incredible and versatile control. This takes home heating and cooling to a whole new level, and when you combine that with the simple fact that your thermostat can also search for and update its weather conditions for your local area and determine the ideal energy and temperature control settings, you have a thermostat Ecobee smart thermostat full-color touchscreen solution that almost runs the show all on its own.

Verdict of Ecobee EB-STAT-02

While some people have complained that it can take a little bit of getting used to, especially if you’re not particularly well-versed with the tablet or smart phone technology of today, it shouldn’t be a problem for most people. Hands down one of the most attractive and best Wi-Fi enabled thermostat controls on the market today, you’d have to be a little crazy not to invest your money with this solution. Amazon offers incredible discount on this particular model often, be sure to click on the link below to check it out!

Pros: This thermostat is very user friendly; I found it especially easy to operate as it seems to present the user interface similarly to many smart products. The installation process was much simpler than I thought it would be, but detailed directions made the step by step process easy to follow. It looks great in the modern, technology rich home. Its attractive, yet subtle appearance add a degree of sleekness and modernity to any house. The Ecobee3 Wi-Fi Thermostat provides the user the ability to control sensors and temperatures around the entire house from the convenience of a smart phone app. Being able to have several sensors located around strategically around the home add to the level of accuracy for the thermostat within the home. This improved level of accuracy leads to lower energy bills, fewer hot or cold spots around the home, and an overall more functional space. All of these facts help to increase the potential resale value for the home owner. The sleek design features of each aspect of the Ecobee3 package make this package that much more appealing.

Cons: The level of customer service provided by the manufacturing company could be much higher. Wait times and response times should be much quicker than what is currently provided. In addition, the tech support that is offered online also leaves something to be desired. When attempting to contact the manufacturer or the tech support that they offer, wait times are too long and hold times are not reasonable. As this is an accessory for the home, the Ecobee3 Wi-Fi Thermostat does not always tie into an existing system without any issue. This device is also a piece of technology, so it is not always completely reliable. Just like any technological tool, the Ecobee3 can suffer some glitches which require interactions with tech support.

Feature wise, the Ecobee3 Wi-Fi Thermostat stands apart from the competition, because it is so user friendly. Aside from the lack of support from a technical standpoint, the product is attractive, simple to install, and convenient to use. Although this is a relatively new item, it is apparent that it will continue to be a largely sold one.

In conclusion, this package is best suited for the home owner who is looking to improve the quality of air and temperature in their home in an aesthetically pleasing way. For the price, the Ecobee3 Wi-Fi Thermostat is an excellent investment and one that comes highly recommended. This thermostat is unique in the fact that it is incredibly easy to install for any customer even if they do not have a great deal of experience. The ability to control the temperature from an easily installed smart phone app. only adds to the appeal of this exciting home improvement option. The subtle design only adds to the decor of any room in the house. Whether or not to add the Ecobee3 Wi-Fi Thermostat to any house should be a very simple decision to make. Commit to the change and appreciate the ease with which your home’s temperature is precisely controlled more every day!

>>Click here to find more details price reviews and ratings of Ecobee3 wifi Smart Thermostat…

Temperature is property of any matter which tells the sensitivity of hotness that we will feel when we touch it. How ever it does not indicate how much total heat energy it contains. For example of same mass of water and coal at same temperature water has absorbed more heat because its heat capacity is higher. But since temperature is a property which is associated with average energy each of its molecules of the substance is having you feel the same sensitivity when either coal or water at same temperature is touched with bare hands.

From Maxwell Boltzmann distribution we see that as temperature increases the the curve tends to be more flat that means average energy of molecules increases with rise in temperature.

It is different from entropy(a measure of randomness of molecules). For example if water and coal are at same temperature and have same mass and absorbs same amount of heat, coal will undergo more temperature change and lesser entropy change ie energy distribution among their molecule will be less random compared to water. That means energy distribution among its molecules will be more uniform.

Mathematically E=H/T  and H=mCT Where E =entropy H= Energy And T=Temperature(Kelvin or absolute temperature) m=mass C=Specific heat capacity.

Entropy=(a measure of randomness of molecules). For example if water and coal are at same temperature and have same mass and same amount of heat is supplied to both, coal will undergo more uniform distribution ie, energy distribution among their molecule will be less random and average motion energy change per molecule will be more compared to water. That means lesser molecules will be at rest compared to water.

So conclusively, if heat is given to a substance and its temperature does not rises and substance does not do any work then it entropy increases which means less order so the whole energy given is not distributed uniformly among its molecules most of that given energy is concentrated among few number of molecules.

Now that you know much about temperature watch this interesting video.

Negative temperature

Now we know the entropy of system may increases or may remain the same. But what if the entropy decreases or the substance become more ordered. Such a substance is said to have negative temperature even though it has absorbed positive energy. For such a system to exist it has to saturate in entropy with probability of  higher states being small as illustrated with Fermi Dirac equation,

P(Ei) =n0(e–ΔE/kT) ,k=Boltzmann constant T=Temperature Ei=i^th energy state ΔE=Difference between two energy state no= Probability at fermi(base level) at temperature T. At zero Kelvin it is 1/2.

The probability(P) equation is for quantum physics by Ludwig Boltzmann. It is similar to Maxwell Boltzamn but instead of velocity, discreet energy states(A set of numbers defined by quantum physics. It has more to specify that energy state then the actual energy of that state.) are used .

At negative temperature there is a change in state or vice versa ie, due to the change of  state the system achieves negative temperature .

Such a system is employed in lasers where the entropy is lowered but heat is applied. But if this is continued to saturate the entropy it will transit to absolute temperature of negative infinity.

Negative temperature does not mean no absolute motion of molecules or particles but a change in its state.

To achieve absolute negative temperature in labs the systems is cooled near to absolute zero as illustrated in the video below.

Most familiar systems cannot achieve this temperature but if such a system comes in contact with normal system heat will flow from negative to positive temperature.

Such a system if stable is hotter regardless of its temperature than any positive temperature system and becomes a continuous heat energy source because of the change in quantum state of the system.

More here.

Intro

Hello! and welcome to my site.  I understand that when choosing from the different range of thermostat models available, it might be hard to find an ideal model. With short reviews,comparison and selection guide, we hope to help you find a thermostat that is perfect for your home and your budget.

A digital non-programmable thermostat temperature reading and setting on these thermostats are far more accurate and give you the convenience of easy to read LCD display.  The problem with these thermostats, however, is that one needs to remember to change them.  For example if you prefer to turn off your heater or lower it during winter nights to save energy, you will have to remember to do it manually every night.

Today’s programmable thermostats offer a variety of options, from displaying the home’s humidity level to showing you how much energy your system is using. You can choose models that will interface with your computer, allowing you to control the thermostat remotely. These internet-connected devices can even text you when it’s time to change your system’s air filter.Some even seem to have a mind of their own. Equipped with PID controllers, they record and process data, learning how long it takes to adjust temperatures in your home, and then automatically adjusting settings until they can maintain your ideal temperature within half a degree.These are generally called the wifi or smart thermostats but are essentially programmable thermostats.

Smart home thermostats

The idea of linking a home’s appliances, electronics and devices like thermostats together into a system that could be controlled remotely with a touch of a finger has an appeal that’s hard to resist. It conjures up images from the futuristic movies and television shows of the 1950s, that hopeful era when it seemed like full-home automation was just around the corner. In the 1950s, however, the technology that would make that vision a reality was still decades away.
Connecting a device as simple as a thermostat to a home automation system didn’t become feasible until the late 1970s when home-automation technology based on a home’s existing power lines began to become widely available. Most people viewed those early systems as not worth the trouble that it took to get them up and running. Then came WiFi.

The Introduction of Wi-Fi in Our Homes

Wireless (Wi-Fi) networks use high frequency radio signals to send and receive data within a limited area. Wi-Fi technology is ideally suited for home automation systems, making it easy to transmit video, sound and data to any part of the home up to 100 feet away without having to fuss with electrical and telephone lines.
How Wi-Fi Thermostats Work
It’s not necessary to install a separate Wi-Fi network to make a Wi-Fi enabled thermostat operational. Any home that has a high-speed Internet connection is ready for Wi-Fi home automation. The device that handles communication between the Internet and a thermostat with Wi-Fi is called a “bridge,” a device that looks something like a miniature stereo speaker. The bridge plugs into an open port on the computer’s router.
Works With Your Computer, Cellphone Or Tablet Device
It’s this aspect of Wi-Fi thermostats that makes some so ideal for the home. The devices can be scheduled to turn off a heating or cooling system when the family is away from home and turn the system back on in time for the family to return to a comfortably heated or cooled environment.With a Wi-Fi enabled thermostat, users can either program the device using the controls on the thermostat or can use the software program’s interface to handle the programming. This allows for remote programming as well. If a family member decides to return home sooner than expected, for example, a few simple clicks of a mouse or taps on a cell phone is all that’s needed to adjust the home’s temperature quickly.

By allowing users to program their thermostats to adjust temperatures when they’re away from home, Wi-Fi programmable thermostats can cut up to 15 percent off of heating and cooling expenses. Multiple thermostats can be controlled by the same Wi-Fi system too. A broad range of other devices, including appliances, electronics, lights and security systems, can be incorporated into a single Wi-Fi home automation system, bringing the vision of fully automated home to life.

Best smart thermostat models

Ecobee smart  Thermostat premium

Price $$$

Touch screen Yes

Heating stages 4

Cooling stages 2

7 day programmable Yes

Auto Home/Away feature Yes(Using built-in motion sensors ,Remote Smart sensors or phone Gps and IFTT along with IFTT’s own or other location sharing App.

Smart Remote sensor Yes (Temperature and occpancy) 1 included. You can add upto 32.

Home automation integration Apple Homekit, Google Assistant, Alexa, SmartThings,Abode, IFTT

Power source C Wire( Power extender kit included for systems lacking C wire.)

Warranty 3 Years

Learning Thermostat (Auto Schedule feature) No(but Eco+ track your usage through your manual adjustment or Home/away time to suggest better schedule that you can implement.

 In built motion sensor (Occupancy) Yes

Humidity Control Yes

Best feature/s and Remarks

Built in Alexa and air quality monitor.

Smart Remote sensor to remove hot cool spot. A affordable Ecobee smart thermostat enhanced does not have Alexa speaker, air quality monitor built in but it is also smart sensor compatible that you can buy separately.

Geofencing using IFTTT on mobile app.

Eco+ which is the energy saving feature of Ecobee has option to enable auto adjust temperature using home/ away, what it feels like based on humidity rather than actual temperature, pre heat cool before peak or lower usage hours of day or if enrolled in community energy saving program.

Click here for more detail, price review and ratings of Ecobee Smart Thermostat

 Nest 3rd generation thermostat

Price $$$

Touch screen Dial With TS

Heating stages 3

Cooling stages 2

7 day programmable Yes

Auto Home/Away feature Yes(Using built-in occupancy sensor or Geofencing through phone app.)

Smart Remote sensor Yes upto 6(Temperature only). Upto 6. 18 if you have more than 1 thermostat.

Home automation integration Alexa, Google, SmartThings, Vivint, ADT,IFTTT

Power source With C wire or  Chargeable backup Battery through system’s low voltage wires.

Warranty 2 Years

Learning Thermostat (Auto Schedule feature)  Yes

 In built motion sensor (Occupancy) Yes

Humidity Control Yes

Best feature/s and Remarks

Auto schedule based on routine.

Auto adjust using motion sensor.

Geofencing using Home/Away assist.

Learns how long it takes to heat or cool your home and starts and stop HVAC heating and cooling to reach right temperature at right time and also prevent overshooting from set point.

Click here for more detail, price review and ratings of Nest Learning Thermostat

Honeywell Home T10 smart thermostat

Price $$$

Touch screen Yes

Heating stages 2

Cooling stages 2

7 day programmable Yes

Auto Home/Away feature Yes(Using Geofencing through phone app, Cannot add based on motion sensor.)

Smart Remote sensor  Yes(Temperature, Humidity and proximity) Upto 20.

Home automation integration Alexa, Google, HomeKit, SmartThings, Cortana, Ring,IFTTT

Power source C Wire required.(Power adapter cable included.)

Warranty 2 Years

Learning Thermostat (Auto Schedule feature)  No

 In built motion sensor (Occupancy) Yes

Humidity Control Yes

Best feature/s and Remarks

Proximity sensor is to adjust temperature control with temperature of rooms that it senses presence.

If you don’t want humidity control you can buy lower priced Honeywell T9 Smart thermostat.

Adaptive learning technology of heating and cooling times.

Click here for more detail, price review and ratings of Honeywell Home T10 Smart Thermostat.

Amazon smart thermostat

Price $$

Touch screen Yes

Heating stages 3

Cooling stages 3

7 day programmable Yes

Auto Home/Away feature Yes(Using geofencing through Alexa phone app.)

Smart Remote sensor  No

Home automation integration Amazon Alexa only.

Power source  C Wired(Power adapter costa extra)

Warranty 1 Years

Learning Thermostat (Auto Schedule feature)  Yes

 In built motion sensor (Occupancy) No

Humidity Control No

Best feature/s and Remarks

Cheapest wifi thermostat with learning capabilities home/away and your schedules input. It calls them hunches.

Supports only Amazon Alexa voice commands and control through routines.

Click here for more detail, price review and ratings of Amazon Smart thermostat

Wyze Smart Thermostat

Price $$

Touch screen No,Dial type

Heating stages4 for heat pumps, 2 for conventional

Cooling stages 2

7 day programmable Yes

Auto Home/Away feature Yes(Using geofencing Home/Away switch though phone app.)

Smart Remote sensor  Yes(Temperature, humidity, Motion) Upto 6.

Home automation integration Alexa, Google, Bluetooth

Power source  C wire (Comes with power adaptor cable.)

Warranty 1 Years

Learning Thermostat (Auto Schedule feature)  No

 In built motion sensor (Occupancy) No

Humidity Control Yes

Best feature/s and Remarks

Geo fencing Home/Away switch to Home mode if inbuilt motion sensor senses motion even if phone is out of geofencing radius)

Remote sensors to eliminate Hot cold spots.

Remote motion sensor to adjust temperature control based on temperature of room occupied.

Can be coupled with other wyze smart devices like Wyze Cam V3, Wyze Lock, Wyze Plug and Wyze Cam Floodlight. For ex it can turn HVAC system On when wyze camera detects motion.

Not compatible with Apple homekit,IFTT.

It does have AI learning capabilities based on your routines and gives energy saving tips but cannot auto schedule.

Click here for more detail, price review and ratings of Wyze smart Thermostat

Sensi Touch 2 Smart thermostat

Price  $$$

Touch screen Yes

Heating stages Single 1H/1C, Multi-Stage 2H/2C, Heat Pump 4H/2C

Cooling stages 2

7 day programmable Yes

Auto Home/Away feature  Yes (Using phone app)
When 3 miles away from your home lower  3 degrees in heat mode or raise 3 degrees in cool mode.

Smart Remote sensor  Yes (Temperature and humidity Sensor. Sold separately) Upto 15

Home automation integration  Amazon Alexa, Google Assistant, Apple HomeKit and Samsung SmartThings

Power source   C required.Adapter  Kit can be bought separately.

Warranty 3 Years

Learning Thermostat (Auto Schedule feature)  No

 In built motion sensor (Occupancy) No

Humidity Control Yes

Best feature/s and Remarks

If you don’t have C wire and don’t want to buy adapter you can buy Sensi smart thermostat that can work with batteries as it is not touch screen.

It is not learning thermostat but you can monitor the performance and efficiency by its energy usage reports.

Easy  interface.

Click here for more detail, price review and ratings of Emerson Sensi Touch Smart Thermostat.

Things You Should Know About Thermostat Wiring

Thermostat Wiring is a method of installing the thermo regulator in your house, office, car, or where else possible. It may be installed by yourself or by an electrician as you wish. Meanwhile, upon installation, the thermostat’s role is to primarily control the temperature by using its simple user interface with the internal workings of your home as well as its adjustable set point. It is used to regulate the desired temperature in a place. These are commonly used in no tropical places in America and in Southeast Asia to in order to ease the discomfort with the weather or climate. Usually, when the desired temperature is achieved, the systems get to be turned off while the expected temperature is delighted in.

Thermostat Wiring

Red C-24 V supply line from air conditioner transformer.

Red H-24 V supply line from Heat pump transformer.

White-To heat pump relay.

Yellow-To air conditioner relay.

Thermostat Wire
Color Codes

Source : dr-fix-it.com/ttt/10005.html

CONVENTIONAL HEATING, AIR CONDITIONING AND HEAT PUMP THERMOSTAT WIRING LABELS, WIRE COLOR CODES AND THE CORRESPONDING FUNCTION DESCRIPTION:

*     Found in some Carrier furnaces
**    The brown is often the first choice to use for the 24 volt common leg but white, black and blue are also used.

TIP:

All of this goes out the window if the person before you didn’t know or care to use the accepted color codes. Sometimes it is simpler to take down the existing wiring and re-terminate using the accepted color codes than it would be to map a “creative” wiring scheme.

The most basic of systems only need 2 wiring for control. They bond to a 2-string thermoregulator. The terminals in the label that are commonly ‘R’ and ‘W’ usually work at 24V. The source of this control electric power results from a control electrical device fitted probably just away from, or through the chamber body. The line voltage feeding the heater is turned down to reliable level of 24 volts. Then, after making a series of loops through at least one safety device, the power goes up to the Thermostat Wirings. In exchange with the room temperature reaching the desirable set point, it triggers the contacts to close. Thus, completing the circuit to the gas valve allowing it to open, the main burner to ignite, and begin the cycle of heat production by the thermostat.

There are also some common types of thermostat wirings where you can be able to find 3 or more wirings. I commonly has terminal with the 3 wirings ‘R’, ‘W’, and ‘Y’. This model, when selected for cooling and when it reaches the point above the set-point, the thermostat will close the connection between the ‘R’ and the ‘Y’ terminal. This initial process shall trigger the wholeness of the machine to start the cooling process. This provides the cooling for the evaporator coils built in the machine.

For further reading you can see this  http://thermostatonline.com/ritetemp_Professionalreferenceguide.html

The Continuing Cycle

When the cycle starts, the temperature of the heat exchanger arises as the fan blower motor starts moving air through the heat exchanger and takes out the heat through the ducting in your home. If, for any reason, the fan fails to run, it will be normal but dangerous for the heat exchanger to get too hot. This triggers the hi-limit temperature device to open to the gas valve, closing the valve and stopping the heating cycle.

Through time, climate control systems have evolved considering that the demands from our generation have vastly arouse. Today, thermostat units are more efficient, and have more features to boast about. No wonder, that the use of the old Thermostat Wiring technology have been long forgotten by most. Meanwhile, some people still are fond of using the old technology, this is good when the technology works real good for them but in some cases of unnecessary damages or malfunction of the machine, the pieces that need to be replaced are most often unavailable in hardware stores, that may lead for them to get to either purchase another old model or adapt with the machine that the new tech has to offer.

Thermostat Settings

• Set the air conditioner’s thermostat not lower than 78°F during summer months.

• By winter, set it to 68°F. This will help you minimize energy costs or expenses.

• When adjusting the temperature on the thermostat, do it gradually to ensure that every family member is comfortable with the adjustments, especially if you have toddlers or babies at home. You can do this by adding or reducing the temperature a degree at a time in a week.

Brands:

Most standard brands available today are Rheem, Trane, American Standard, Carrier, Bryant, Lennox, York, Amana and Goodman. Other Brands such as Maytag, Frigidaire and Tappan which are manufactured by Nordyne. Non standard brands such as Florida Heat Pump (FHP), First Company and Mitsubishi.

Sizing:

It is very important that you purchase the correct size system for your home regardless of the size you currently have. What I mean by that is, don’t just replace with the same thing you have now. It could be mis-sized and causing you problems that you are not aware of such as short cycling (causing humidity problems) or over working (shortening its life span).

Today’s systems are different in design then your older system. In order to achieve the higher efficiencies, they have installed a TXV valve which regulates the flow of the refrigerant. These keep the units from working inefficiently but do not allow for deficiencies in sizing.

The best way to properly size your new system is to have your contractor do a Heat Load Calculation also known as a Manual J. If not, as a general rule of thumb, 500 sq. ft. per ton of a/c living space for a single family home (example 2000 sq. ft. of a/c living space is a safe bet at 4 tons) . Factors may vary depending on exposure of home, how many windows and type, attached or free standing home, single story or 2, inadequate insulation in attic and leaking ductwork.

Your contractor should also check your ductwork in the attic to make sure it’s sized properly for the new system. Don’t assume or let him tell you it’s fine if he hasn’t looked (red flag).

Seer Rating:

Acronym for Seasonal Energy Efficiency Rating. The higher the SEER rating the lower your electric bill. Some utility companies offer rebates based on the SEER rating. 13 SEER is the minimum rating allowed by law and can go up to 21 SEER or higher depending on the brand. Keep in mind that the higher the SEER the more costly the equipment. For a single stage unit 16 seer is about the highest and probably the most popular now because of price.

Types of Central a/c systems:

Split systems, package units and water source heat pumps (less common and usually in high rise condos). A split system has 2 units, a condenser outside and an air handler inside. A package unit has both in 1 on the outside. A water cooled unit has both inside and is connected to a water source.

Single Stage vs. 2 Stage:

Single stage system is the least expensive and the more common system. It uses one compressor in the outside unit (condenser). A 2 stage system has either 1 compressor that changes speeds or 2 compressors that change back and forth according to demand. A 2 stage unit also has a variable speed air handler. The benefit to the 2 stage system is better humidity control, better air circulation and quieter operation.This system will keep your home feeling more comfortable over the course of a day because it adjusts to the changing environment of your home. Factors such as outside temperature, direction of the sun as it relates to your home and humidity will be compensated by this system.Also check your old thermostat.You might have to replace it and get a new one preferably programmable type that support your system.

Types of Heating:

Heat strip, heat pump, gas furnace. A heat strip is a coil in the air handler that heats up like a toaster. The air blows over it as it goes through the air handler. A heat pump uses a reverse cycle on the compressor to produce heat and can be supplemented with a heat strip for additional heating (used in cooler climates). A gas furnace gets its heat from natural gas and is used in colder climates.

Refrigerant Line Sizing:

These are the the copper pipes that carry the refrigerant (or freon) back and forth from the condenser to the air handler. There are 2 lines. A liquid line and a suction line. They must be the correct size according to the manufacturers specifications. Make sure that your contractor checks them to see if you have the right size for the new unit. Don’t assume they are correct even if you are replacing with the same size a/c. They may never have been correct. Under sized lines cause premature failure of the equipment due to low lubrication of the compressor and will lower the SEER rating that you are paying for. If a contractor does not check these (red flag).

Rule of thumb.

1.5 to 2.5 tons minimum size is 5/8 and 1/4 up to a 50′ run.

3 to 3.5 tons minimum size is 3/4 and 3/8

4 to 5 tons minimum size 7/8 and 3/8

Electrical Specifications:

Electrical wiring also needs to be sized properly. Don’t assume because you lived in your home for 20 years and your a/c has worked fine and you’ve never had a fire that it’s ok. Breakers also need to be sized properly. Again, don’t assume that what you have is right or safe. Make sure your contractor checks this without you asking. if not (red flag). Rule of thumb for air handlers

up to 30 amp breaker #10 wire and you can use a 5 kw heater

up to 45 amp breaker #8 wire and you can use a 8 kw heater

up to 60 amp breaker #6 wire and you can use a 10 kw heater

Rule of thumb for condensers

Varies by size and brand but wire sizes and breakers listed above are the same.

Manufacturers, Utilities and Government Rebates:

Manufacturers have rebates usually in the spring and the fall. The higher the price of the equipment, the higher the rebates (typically up to $1200). Keep in mind that the dealer absorbs half the cost of the rebate, so it gets built into the price to the consumer. Here is a link for state, local and/or utility incentives in your area http://www.dsireusa.org/. Power utilities may also have rebates for repairing ductwork and replacing insulation in the attic. Federal Energy tax credits ended on December 31, 2011 but legislation is in congress for new tax credits.

Hiring a Contractor:

Your local power utility company may have a list of participating contractors for any utility rebates. Better Business Bureau is good if you take the time and check how many complaints a particular contractor has (too many and red flag). Angie’s list is also good. The best way to find a contractor is by word of mouth. Ask your neighbors, friends and co-workers. If they’ve had a good experience, they will surely let you know, if not then you know which contractors to stay away from. Get 3 estimates. If you do your research and call reputable contractors, then 3 should be enough. Too many will definitely get you confused. Make sure that they leave you a written estimate with all work to be done as well as model numbers and prices. If all these things are not on the proposal or if they tell you that they don’t pull permits for the job then beware. Most cities require permits even if your replacing with the same thing. This is to make sure that your contractor did all the work according to code and that your home is safe.

We received so many tiny yet crucial issues from the users of thermostat. We brought out best advisers to solve all the queries & do honeywell thermostat troubleshooting for our readers. Understand the solutions based on the type of thermostat you possess.

Honeywell is one of the leading thermostat manufacturing brand all over the world. It has a vast number of thermostat products available in the market and shops.

The brand manufactures and designs programmable, non-programmable, analog, digital, wired and wireless, etc. Thus there are various different models and products that belong to this company.

However, the main aim of Honeywell is to provide quality products to their customers and even offer them a wide range of features.

Yet, after all being an electronic gadget, some thermostat tend to behave improperly. And of course the company provides the warranty for their products but what if the device has any issue after the warranty period.

So let us go through some troubleshoots that are found commonly as an issue among many.

TYPE OF HONEYWELL THERMOSTAT & TROUBLESHOOTING

Basically, Honeywell used to design analog thermostat a decade or two ago. Later they made it digital, with a screen that can display the temperature that you have set as well as the room temperature.

Thus maintains and controls the heating and cooling units as well as the temperature. And if the unit is blinking then there is some issue in the thermostat.

Compressor issue: If you see a flashing light on the unit or any msg saying heating on or cooling on then it is the issue with the compressor of the unit.

So it is recommended for all to have a regular check on the battery of the device so that you do not have to get it shut down any time unknowingly and unaware.

HONEYWELL ANALOG THERMOSTAT TROUBLESHOOTING

However, the analog models of the thermostat are very traditional formats of the device. Nowadays, there are smarter devices that can do a lot better than the analog ones.

Analog devices have very less amount of features compared to the present generation models. They just have basic functions and their buttons for switching off the unit, heating, and cooling.

Many thermostat models even display a message of Replace battery. This is helpful as you will not have to experience a sudden shutdown of the thermostat.

Check List:

Troubleshooting Steps:

To make the analog device work properly you require doing few check steps so that you can fix the bug and start enjoying back your thermostat service.

But if all is in the place and nothing is worn out or misplaced then there might be an issue with the furnace or the air conditioner. So, get that check in case if they are the cause of the breakdown.

DIGITAL THERMOSTAT TROUBLESHOOTING:

Digital gadgets with screen interfacing capabilities are the latest generation of thermostats that are being manufactured by Honeywell brand as well as other brands also. These units are high-end and chic with a bundle of features inside them.

A digital touchscreen thermostat has the number of features than a digital thermostat and a programmable one has more than all. These programmable devices can be scheduled and programmed for the upcoming days and have many other qualities.

​But on the other hand, it is also true that there will be the number of problems if there are more features in a device. As the chances of an issue in a feature are more than the analog one, there should be proper troubleshooting for each possible case.

​So let us see how these high-end gadgets can be troubleshoot using a perfect methodology so that you can have a look at the unit before you decide to call the service man to have a look at the thermostat.

It is very difficult to choose best available product without knowing everything about it. We prepared such basic guide on Types of Thermostats to introduce you to the various kinds available in the market & their differences.

There are various thermostat manufacturing companies in the market that are producing a great quality of devices that can keep your house warmer when you need and cooler when it is required.

Thus a comfortable and soothing atmosphere is what you get with the help of these wonderful devices.

TYPES OF THERMOSTATS

The manufacturers are designing different types of thermostats so that you all can get the best according to the parameters and your requirements.

MECHANICAL THERMOSTATS

The manufacturers are designing different types of thermostats so that you all can get the best according to the parameters and your requirements.

Honeywell CT410B Thermostat is the best reviewed mechanical thermostat unit.

To follow the things in an ancient way you can have one such masterpiece home thermostat at your place. But yes it won’t be of much help as these are now outdated.

These devices were used just a decade ago and now with the inclusion of the new and advanced ones have taken their place.

DIGITAL THERMOSTATS

After the use of the mechanical thermostat for some period of time and then the digital thermostat were invented. the digital models did not really had another extra feature rather than altering the temperature inside the house.

So, basically, this type of thermostat devices are the one which displays the conditions and settings of the unit in the digital format on the screen rather than the analog dial reading.

Honeywell TH3110D1008 Thermostat is the best non-programmable digital thermostat device that can work the temperature alterations very efficiently and precisely as compared to the mechanical ones.

The another basic difference between the mechanical and the digital devices are the basic working and components. One is mechanically driven while the other has electrical circuits and displays.

NON-PROGRAMMABLE THERMOSTATS

The non-programmable versions of thermostat device are the one which cannot do the programming. Of course, as the name suggests. But this does not mean they do not work.

And even with smart versions of the thermostats, the manufacturers are still manufacturing the Non-programmable ones.

Apparently, these devices just have a simple function and operation. You just can do the required temperature fluctuations as and when required. And this can be done by using the temperature increase or decrease button. And the temperature fluctuations will be seen on the digital screen of the thermostat. So, basically, there is no other great operational functioning or add-on feature to this kind of thermostats.

The best Non-programmable thermostat unit is the Honeywell TH3110D1008 Pro Non-Programmable Digital Thermostat..

PROGRAMMABLE THERMOSTATS

This is the latest and most advanced form of thermostat device that you can get. Such types of devices allow you to schedule the temperature alterations for the upcoming week or upcoming days.

So basically, you are able to plan the whole up and down of the temperature, on and off of the device as well as other alarms and functions that the thermostat does, all can be pre-planned and programmed for the future.

You just need to do the programming, which is setting the temperature change for a particular time for a few days together.

Nest Learning 3 Generation is one of the top Programmable Thermostat devices that you can get from the market at present.

With all the advanced features and facilities that are available in this unit, makes the device a high-end gadget.

WIRELESS THERMOSTATS

Earlier, the thermostat units were required to be wired with different devices that are to be controlled. But with the great leap in the field of wireless technology, all the devices are getting smarter and wire free.

So now you are free from the worries regarding the wiring and connection of all the gadgets.

Ecobee 3 is the best wireless thermostat. You have different sensors and different gadgets all connected to the main unit with help of Wifi connection.

So there is no concern or worries regarding the wiring issues. And thus the efficiency in connectivity increases in such connections.