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Topic: Thermostat


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  Sourcebook Programmable Thermostat
A programmable thermostat senses the room temperature and controls the HVAC system according to a schedule established by the homeowner.
The goal of a setback thermostat is to regulate the HVAC system to maintain a desired comfort level when the home is occupied and then enter an economizing mode when the house is unoccupied.
For example, a thermostat in a warm area (kitchen or sunny room)will sense warmer temperatures and over-cool the rest of the house.
www.greenbuilder.com /sourcebook/ProgrammableTherm.html   (0 words)

  
 Thermostat - Wikipedia, the free encyclopedia
The power through the thermostat is provided by the heating device and may range from millivolts to 240 volts in common North American construction, and is used to control the heating system either directly (electric baseboard heaters and some electric furnaces) or indirectly (all gas, oil and forced hot water systems).
Line voltage thermostats are sometimes used in other applications such as the control of fan-coil (fan powered from line voltage blowing through a coil of tubing which is either heated or cooled by a larger system) units in large systems using centralized boilers and chillers.
Digital thermostats use either a relay or a semiconductor device such as triac to act as switch to control the HVAC unit.
en.wikipedia.org /wiki/Thermostat   (2431 words)

  
 Techno’s “Know you car” Series #1 –
When the temperature of the coolant reaches 82°C the thermostat (gate) opens and lets the hot coolant flow out of the engine, via the top radiator hose, and into to the radiator.
The thermostat is fitted with the cylinder side in the engine (Techno’s rule) "cylinder side to the cylinder side".
The "thermostat mechanism" is in the cylindrical part of the device.
www.miata.net /garage/KnowYourCar/S1_Thermostat.html   (267 words)

  
 Electronic digital thermostat information Honeywell Invensys Rite Temp
Thermostats get blamed for many problems because they are the most prominent part of your equipment that you see all the time and get replaced like spark plugs.
When the thermostat is placed in the "emergency heat mode" it disables the outdoor unit ("Y" terminal) and makes the "W" terminal live on a call for heat as well as "G".
If you have a fossil fuel kit with oil you should wire the system so that when the thermostat is placed in the EM heat position (E terminal is activated) you disable the oil burner and allow the heat pump to run.
toad.net /~jsmeenen/thermostat.html   (1690 words)

  
 EERE Consumer's Guide: Thermostats and Control Systems
By turning your thermostat back 10°–15° for 8 hours, you can save about 5%–15% a year on your heating bill—a savings of as much as 1% for each degree if the setback period is eight hours long.
A common misconception associated with thermostats is that a furnace works harder than normal to warm the space back to a comfortable temperature after the thermostat has been set back, resulting in little or no savings.
Alternately, a normal programmable thermostat can be set to begin its cool down well before you leave or go to bed and return to its regular temperature two or three hours before you wake up or return home.
www.eere.energy.gov /consumer/your_home/space_heating_cooling/index.cfm/mytopic=12720   (889 words)

  
 NetLogo Models Library: Thermostat
A thermostat is a device that responds to the temperature of a room in order to maintain the temperature at some desired level.
A simple thermostat does this by switching the heater on when the temperature of the room has fallen below the set desired temperature, and switching the heater off once the desired temperature has been reached or exceeded.
In this case, it is the regulating function of the thermostat that we are primarily concerned with.
ccl.northwestern.edu /netlogo/models/Thermostat   (941 words)

  
 Thermostat Calibration and Replacement for hot tubs and spas
In view of the fact that most of these types of thermostats will lose their maximum temperature sense rating over time, and recalibration is all that is typically required, this procedure is presented to show you how an experienced spa technician may solve this problem quite easily, without actually having to replace the thermostat switch.
Thermostats of this type provide RELATIVE indications of temperature, (ie, hot or cold only), and re-calibrating a thermostat to make the heater perform at a higher temperatures is a SERIOUS procedure.
As an example, (using a typical old thermostat in use in the field), the ON point with water that is in the 80 degree farenheit range, will normally be in the late 20% of the clockwise rotation, ie, midway through the HOT indication on the control panel.
spasupport.com /seq/tstatcal   (1374 words)

  
 White-Rodgers - Thermostats, digital programmable, non-programmable, mechanical thermostat
With the thermostat set to COOL and the temperature lowered below the room temperature by a couple of degrees, there can be up to a five minute delay before the thermostat activates the compressor and an indoor blower.
Thermostat programming and configuration will not be affected by pressing the reset button but the clock will need to be reset.
You can also check the wire routing to verify the thermostat or remote wires are not running parallel to high voltage lines with high inductive loads that could (in extreme cases) create a voltage spike at the thermostat.
www.white-rodgers.com /wrdhom/common/ptech/thermo/90_Series_faq.htm   (3546 words)

  
 DIESELSITE 203* Thermostat
thermostat should be slightly better fuel economy, less smoke, and maybe a few extra "ponies" to go along with it.
With the thermostat fully open, the bypass is mostly closed, and vice versa.
As with the OEM thermostat requirements, we recommend that you change your thermostat out once per year to insure proper functioning of the unit.
www.dieselsite.com /index.asp?PageAction=VIEWPROD&ProdID=186   (1603 words)

  
 NEMA - Thermostat Recycling Corporation
The Thermostat Recycling Corporation (TRC), a not-for-profit corporation owned by three NEMA member companies, facilitates the collection by HVAC wholesalers from contractors of all brands of used, wall-mounted mercury-switch thermostats so that the mercury can be purified for re-use.
The Thermostat Recycling Corporation (TRC) announced that it recovered more than 60,000 thermostats containing over 575 pounds of mercury between January and June of 2006.
The Thermostat Recycling Corporation (TRC) announced that it recovered over 87,899 thermostats containing almost 820 pounds of mercury in the calendar year 2005.
www.nema.org /gov/ehs/trc   (684 words)

  
 IP Thermostat & Power Adapter
With the addition of optional indoor temperature sensors mounted away from the thermostat, the thermostat will be able to average the temperature across multiple rooms to avoid wasting energy.
The IP Thermostat is compatible with most HVAC systems, so whether you have a gas or oil furnace or boiler, hydronic heating or central air conditioning, you'll be able to integrate this single-stage heat and cool thermostat into your existing heating system.
Thermostats can be configured to send alerts in the event of required maintenance or low temperature alarms.
www.smarthome.com /3053.html   (0 words)

  
 Trane : Products : Thermostats
Trane programmable thermostats are designed to maximize the performance of your home comfort systems with reliable, accurate temperature control.
All you have to do is plan your family's schedule for the week, follow your thermostat's simple programming instructions, and then reap the benefits of lower energy costs and enhanced comfort.
With our programmable thermostats, you start by simply programming your weekday requirements—when you wake, when you leave the house, the time you return home, the time you go to sleep, and the temperature you want at each of those times.
www.trane.com /residential/products/thermostats.aspx   (480 words)

  
 Robertshaw 9710 Series Deluxe Programmable Thermostat
The thermostat shall allow the user to program the system fan separately for continuous or automatic operation for each of the 4 time setpoints per day to meet local application and code requirements.
The thermostat will have automatic changeover capability to allow the thermostat to determine whether the heating or cooling program should be used to control the room temperature.
The thermostat shall be equipped with a five-minute delay on break for compressor short cycle protection during cooling operation to prevent compressor damage.
www.icca.invensys.com /robertshaw/9710.htm   (631 words)

  
 RiteTemp 8022 Digital Thermostat RV Installation   (Site not responding. Last check: )
This page describes a project to replace the analog thermostat in my motorhome with a digital one to provide better temperature control.
Other RV owners have reported using inexpensive Hunter and Lux thermostats but I was unable to find those locally.
The "C" pin is not used by the thermostat in this application so I borrowed it to provide an easy place to attach the wire.
home.comcast.net /~morodat/ritetemp_install.html   (439 words)

  
 Totaline Wireless Thermostat System - No Need to Rewire
If you wish to be able to move the thermostat, put it by your bedside at night, or even control your heating and air conditioning system from two different places, such as upstairs and downstairs, then the Totaline Wireless Thermostat is for you.
Add additional wireless thermostats around your house (up to 4) and have instant access to temperature control no matter where you are.
Thermostat is completely wireless, receiver can be mounted at unit or at old thermostat's location.
www.smarthomepro.com /30403.Html   (737 words)

  
 Programmable Thermostat - NT10e
The IP Thermostat and IP Thermostat Power Adapter are also available to be purchased as a kit; a kit is also available that contains a six-port power adapter for controlling up to six thermostats, ideal for larger homes.
The IP Thermostat is compatible with most HVAC systems, so whether you have a gas or oil furnace or boiler, heat pump system with auxiliary heat, hydronic heating, or central air conditioning, you'll be able to integrate this single-stage heat and cool thermostat into your existing heating system.
Thermostats can be configured to send alerts in the event of required maintenance or high or low temperature alarms.
www.smarthome.com /3054t.html   (0 words)

  
 MGF Cross Reference, Spareparts, Ersatzteile
The thermostat housing(fl) is hidden under the inlet manifold (which is fl) in the darkness of the engine bay.
The new thermostat comes with a new gasket which sits on the thermostat, be careful when fitting that you do not pinch it, or it will weap and require a new gasket (and taking apart again (grrrrr).
The thermostat is surrounded by a rubber sealing.
www.mgfcar.de /thermostat/index.htm   (666 words)

  
 MCC | Thermostat
MCC presents a new resource for youth on war, peace and Christian conscience.
Thermostat features a DVD and study guide with 33 sessions divided into 7 units: Peacemaking, Imagination, Allegiance, Security, Terrorism, Camouflage and Nonviolence.
Though Thermostat is designed for youth groups, the concerns addressed are the concerns of the whole church.
www.mcc.org /thermostat   (98 words)

  
 Howstuffworks "How Car Cooling Systems Work"
The thermostat's main job is to allow the engine to heat up quickly, and then to keep the engine at a constant temperature.
The secret of the thermostat lies in the small cylinder located on the engine-side of the device.
This cylinder is filled with a wax that begins to melt at around 180 F (different thermostats open at different temperatures, but 180 F is a common one).
auto.howstuffworks.com /cooling-system8.htm   (371 words)

  
 Programmable Thermostats : ENERGY STAR
Programmable thermostats automatically adjust your home's temperature settings, allowing you to save energy while you're away or sleeping.
If you are like many homeowners and work outside the home during the day and have a different schedule on the weekend, a programmable thermostat can offer many benefits, and the return on your investment is usually within 1 year.
On the other hand, if you are home throughout the day, seven days a week, then a programmable thermostat will offer more limited benefits.
www.energystar.gov /index.cfm?c=thermostats.pr_thermostats   (0 words)

  
 Wireless Thermostat
Place another wireless thermostat in your family room so when you want to "bump" the temperature up or down a degree or two, just reach over to the wireless thermostat on the table an press the up or down arrow button.
The appearance and size of the thermostat and receiver is the same as the residential version.
If you are interested in a thermostat that accepts multiple temperature inputs from either wired or wireless sensors to compute an average area temperature, see our Commercial Flushmount Thermostat (1/4 inch thin).
ourworld.compuserve.com /homepages/rciautomation/p1.htm   (1108 words)

  
 Natural Handyman's Thermostat Page
A thermostat, in its simplest form, must be manually adjusted to change the indoor air temperature.
By turning your thermostat back 10ø to 15ø for 8 hours, you can save about 5% to 15% a year on your heating bill--a savings of as much as 1% for each degree if the setback period is eight hours long.
Digital thermostats are identified by their LED or LCD digital readout and data entry pads or buttons.
www.naturalhandyman.com /iip/infxtra/infthermostat.shtm   (2102 words)

  
 EE476 Final Project: Microcontroller Based Thermostat
The thermostat was to compute the current temperature once per second and then send an on/off signal to a heating device which would then regulate the temperature to a desired target temperature.
In addition, the thermostat was required to keep a time of day clock, as well as record the maximum and minimum temperature values that have occurred.
In addition, the thermostat also required the use of both an LCD and a keyboard for the purpose of user interaction.
instruct1.cit.cornell.edu /courses/ee476/FinalProjects/s1999/jason/476final.html   (1190 words)

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