Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater

3 Answers

I have a programable honeywell thermostat with a Circulation setting that ramdomly runs the fan, versus on or auto. The manual says that the fan runs 35% less on circulation but circulates the air randomly throughout the day even if the temperature is set up high when we are gone. It says it helps better circulation and cleaning. The debate is whether we should set it to circulate rather than auto during the summer for better cleaning or the air and lower A/C bills. What is the answer, What is the best setting and why?

Posted by on

  • 1 more comment 
  • tomlpointer May 17, 2009

    I already have a setback honeywell 8200 programable thermostat. The question is if I should be setting the thermostat to the On, auto, or circulate position for Air conditioning. I understand the feature and what it does, I need to know if it is better and the reasons it is better as to what setting I should leave it on for both winter and summer. My wife feels it should be left on auto and I say it should be left on circ, since we set the temperature back when we are not at home to 85 and when we are home to 78. The circ will run off and on even if the temperature inside is lower or higher than the setting. It keeps the air circulating and fresher and is suppose to use less energy. But I need to know an expert and their credentials so I can show my wife and mother in law.

  • tomlpointer May 17, 2009

    Thanks,



    We have a two zone house with 2 same size units. One unit cools the bedrooms and the other, kitchen, den etc. We have a set back thermostat. We have been setting the bedrooms at 85 from 6:30 am to 6:30 pm and then to 77-78. We set the rest of the house: 6:30 am to 1:30 to 85 and 1:30pm to 6:30 PM to 78. We have the new Carriar units that use the large filters, the units bring in outside air, a closed system. We care about power usage. Cost is 13.5kw and we live in Houston, where temperatures range from 70-100, with high humidity. Our thermostat also is set with a humidity setting between 55-65, which I understand determines whether the units go on anyway irregardless of the temperature setting. I think what you are saying that when the unit is on Auto, it will run continuously until the temperature/humidity have reached its goal. If that is the case, wouldnt it be harder on the fan, compressor, etc since it is running continuously and then when it reaches its temperature it will not circulate the air, so that it will not keep air fresh and the house dust free. My wife does not like the house to be dusty. Will there be a significant difference if the units are on circulate rather than auto? If I am looking for power usage settings, what will be more efficient during the summer using the temps and settings above and what would you estimate the cost of running it on circulate vs auto. Also, wont it cool off quicker if the units are on auto, but wont it put more stress on system ? I am looking for the cost savings if any if the units are on auto but at a price of stale air and a lost more dust. what is your recommendation?

  • tomlpointer May 17, 2009

    We have a two zone house with 2 same size units. One unit cools the bedrooms and the other, kitchen, den etc. We have a set back thermostat. We have been setting the bedrooms at 85 from 6:30 am to 6:30 pm and then to 77-78. We set the rest of the house: 6:30 am to 1:30 to 85 and 1:30pm to 6:30 PM to 78. We have the new Carriar units that use the large filters, the units bring in outside air, a closed system. We care about power usage. Cost is 13.5kw and we live in Houston, where temperatures range from 70-100, with high humidity. Our thermostat also is set with a humidity setting between 55-65, which I understand determines whether the units go on anyway irregardless of the temperature setting. I think what you are saying that when the unit is on Auto, it will run continuously until the temperature/humidity have reached its goal. If that is the case, wouldnt it be harder on the fan, compressor, etc since it is running continuously and then when it reaches its temperature it will not circulate the air, so that it will not keep air fresh and the house dust free. My wife does not like the house to be dusty. Will there be a significant difference if the units are on circulate rather than auto? If I am looking for power usage settings, what will be more efficient during the summer using the temps and settings above and what would you estimate the cost of running it on circulate vs auto. Also, wont it cool off quicker if the units are on auto, but wont it put more stress on system ? I am looking for the cost savings if any if the units are on auto but at a price of stale air and a lost more dust. what is your recommendation?

×

Ad

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 144 Answers

If you want clean air without changing the temperature and without using as much power as on the A/C setting then put it on "Circulation" which just means you'll just filter dust etc out of the air. If you want to change the room temperature put it on Auto at your desired temp this will filter the air longer as it's running more but it will use more power than Circulation there's only a better setting if you tell me your exact requirement eg do you want to cool the room or just clean the air, or clean the air saving power??? otherwise if you don't care about the power cost then the "On" setting is the best as it filters non-stop and cools the air non-stop. Cheers

Posted on May 17, 2009

  • Steven White
    Steven White May 17, 2009

    By the way I'm a Refridgeration/ Electrical Technician. A tip give your wife and mother in law nice flowers and a hug, then sneek out to do some fishing or play some golf etc. Good luck

  • Steven White
    Steven White May 28, 2009


    Hello sorry I've been away on business, now it looks like nobody else has answered your question correctly. Ok your first question.

    Wouldn’t it be harder on the fan, compressor, etc since it is running continuously and then when it reaches its temperature it will not circulate the air, so that it will not keep air fresh and the house dust free.

    Ok all electrical and electronics like to stay warm. eg most compressor faults occur when they are left of for a extended period inturn they seize. The only thing to do is to keep the filters clean and the condenser outside clear of dust so it doesn't get to hot. On Auto it will come back on often to keep the rooms at the set temperature inturn it will also filter often.

    I can not calculate your power usage as there are to many variables eg Room size, heat or cold lose do to room insulation, windows, outside temp, humidity the list goes on and on, The only reading I could possibly work out is the amount of power used if the unit is set to on and never stops for a set period of time. So go with a power meter. The best way is to have put a mobile power meter installed to the circuit of the two units so you can get exact readings instead of guessing also you can try different settings and see the effect. You would save a lot of money if you leave it on circulate but unless the compressor runs then it won't be cooling or dehumidifying at all. Cheers

×

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 326 Answers

Setting on auto mode will definately cost bill overload but.in auto mode you will be dealing with dusty area.but the cold ness will be quite more which in summer you really want.
but in air cirulate mode the bills will be quite less then auto mode.but area will also be more clean then auto mode but the cold ness will be little less.but if you compare the bill in both mode it will be little difference not a vast difference.but yes in auto mode the coldness will be enjoyable then other mode.
but as per the other users choise mostly the users keep it on auto mode.as it has long life in auto mode for unit.because machine it self decides when to get heated and when to get cool and at what speed the motor should run.unit makes its adjustment as per the place in auto mode.
that is benefit.only dust in the area is a problem.but that is quite understood in such a heated humidity whether.
still there are two options.not any option is bad.its actually our choise at what we except it.

thanks.
please do rate the solution.thank you for using fixya.keep updated.

Posted on May 17, 2009

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Expert
  • 987 Answers

To maximize your energy savings without sacrificing comfort, you can install an automatic setback or programmable thermostat. They adjust the temperature setting for you. While you might forget to turn down the heat before you leave for work in the morning, a programmable thermostat won't! By maintaining the highest or lowest required temperatures for four or five hours a day instead of 24 hours, a programmable thermostat can pay for itself in energy saved within four years.
Programmable thermostats have features with which you may be unfamiliar. The newest generation of residential thermostat technologies is based on microprocessors and thermistor sensors. Most of these programmable thermostats perform one or more of the following energy control functions:
They store and repeat multiple daily settings, which you can manually override without affecting the rest of the daily or weekly program.
They store six or more temperature settings a day.
They adjust heating or air conditioning turn-on times as the outside temperature changes. Most programmable thermostats have liquid crystal temperature displays. Some have back-up battery packs that eliminate the need to reprogram the time or clock in case of a power failure. New programmable thermostats can be programmed to accommodate life style and control heating and cooling systems as needed

Posted on May 16, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Honeywell Thermostat RTH6350 makes heat run in AC mode after AC runs


Well, if it wasn't doing that before then you more than likely know its in your wiring. Cools down then heats back up sounds like the auto change over is on, and the heat setting is higher than the cool setting?

Mar 02, 2017 | Heating & Cooling

1 Answer

My thermostat when prgrammed and set on "auto" mode kicks on heat when temp drops below set temperature. The problem is that after warming up to that temperature...it does not shut the fan off. ...


I have a honeywell TH8320U thermostat and American standard Air handler with heating unit put in. THE thermostat works fine with the ac and follows the programs I have set. However the heat is a different story. The thermo clicks on to follow program but the unit does not run. (auto settings) If I place the thermo in heat and turn it to on I get heat?

Dec 08, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

Honeywell MagicStat 3200 Fan continues to run--I flipped furnace breaker off for an hour, set stat to off, & flipped breaker back on. fan still runs. Fan control is on Auto.


Hello,If just installed the thermostat check that the wires are not touching anywhere.If not the case you have a open(tripped) HIGH LIMIT at the furnace and the blower will continue to run untill it is reset.

Oct 30, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

Honeywell Chronotherm iv fan keeps running even when heat and cool turned off. How do I turn it off?


To turn the fan off, press the "fan key" until it says "auto". This will turn the fan off. When the programs scheduled, changes, the fan will go on again. You have to repeat the fan to "auto" each time the schedule changes.

May 12, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

Honeywell th6000 thermostat installed. It shows only heat-or off- no cool. The fan doesn't show up as auto or on. Now air conditioner has turned on and it is -15


If you just installed the stat, you need to enter installers programing to set it up. To do thi, press and hold "UP" and "FAN" until a number on the left and right show up. The left number is the function and the right number is the setting. You do not specify what type of system you have, so i cannot tell you exactly what settings. But here is a link to the installers manual. the installers program settings is about half way down. http://www.forwardthinking.honeywell.com/related_links/thermostats/focuspro_6000/install/69_1920es.pdf

Feb 06, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

RTH230 thermostat, want to run fan only.


There is a switch labeled FAN with positions for Auto and On. Move the switch to On. For an owners manual go to http://customer.honeywell.com/Honeywell/getliterature.axd?LiteratureID=69-1800.pdf

Jul 09, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Fan keeps running.


Some programmable thermostats have a circulate feature. This feature will allow your fan to run approx. 20 minutes per hour. This will insure better circulation, a better balanced temperature throughout the home & better air quality do to more air filtration. Read your thermostat manual to see if your thermostat has this feature and how to turn it off if needed. Another possibility would be on an older furnace with a fan limit control. If the temperature settings are set to low on the fan limit (or if the control is malfunctioning) you could experience a fan that runs a lot even if the thermostat is off.

Apr 10, 2009 | Honeywell Electronic Programmable...

1 Answer

Fan Honeywell Chronotherm IV T8600


sounds like the fan has been programmed to come on during that time. run through your programming settings and make sure the fan is set to auto for all the times.

Nov 11, 2008 | Honeywell Programmable Thermostat Heater

3 Answers

Honeywell Thermostat RTH 7500


Assumed all the wiring are correct,

to change from manual switching from heat to cool, press [system] button ( left ) to go into system setting.

then press and hold the [fan] middle button untill option display 120

use up down button to select option 300 ( Manual/Autochangeover) ,

select 0 for manual, 1 for automatic. ( read caution in page 22 of installation manual )

Good luck

Sep 30, 2008 | Heating & Cooling

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

6,299 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honeywell Heating & Cooling Experts

Bill Long

Level 3 Expert

587 Answers

Paul Carew

Level 3 Expert

2597 Answers

vance jones

Level 2 Expert

120 Answers

Are you a Honeywell Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...