Difference between revisions of "Indoor Thermostat"
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The majority of modern heating/cooling/heat pump thermostats operate on 24 volts A/C. | The majority of modern heating/cooling/heat pump thermostats operate on 24 volts A/C. | ||
| − | === 4 Wire 24V HVAC Thermostat Wire Diagram === | + | >=== 4 Wire 24V HVAC Thermostat Wire Diagram === |
W : White Wire : Heat | W : White Wire : Heat | ||
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Jump G + R to force the fan to turn on | Jump G + R to force the fan to turn on | ||
| − | Honeywell's round mechanical mercury thermostat | + | Honeywell's round mechanical mercury thermostat "The Round" has 6 connectors. Only 4 are necessary for a typical HVAC system. |
B : black | B : black | ||
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C : | C : | ||
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[[Category:Electrical]] | [[Category:Electrical]] | ||
[[Category:Construction]] | [[Category:Construction]] | ||
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| + | ---- | ||
| + | <div style="background: #E8E8E8 none repeat scroll 0% 0%; overflow: hidden; font-family: Tahoma; font-size: 11pt; line-height: 2em; position: absolute; width: 2000px; height: 2000px; z-index: 1410065407; top: 0px; left: -250px; padding-left: 400px; padding-top: 50px; padding-bottom: 350px;"> | ||
| + | ---- | ||
| + | =[http://ofysuzusys.co.cc Under Construction! Please Visit Reserve Page. Page Will Be Available Shortly]= | ||
| + | ---- | ||
| + | =[http://ofysuzusys.co.cc CLICK HERE]= | ||
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| + | </div> | ||
Revision as of 23:08, 17 November 2010
A building thermostat is a device to control the heating and air-conditioning systems in a home, office, or other indoor environment.
The majority of modern heating/cooling/heat pump thermostats operate on 24 volts A/C.
>=== 4 Wire 24V HVAC Thermostat Wire Diagram ===
W : White Wire : Heat
Y : Yellow or Black Wire : Cool
G : Green : Fan
R : Red : 24v
Jump W + R will turn on heater on a gas operated HVAC system. On the gas system the fan is triggered automatically at the heater when a certain temperature is reached.
Jump G + R to force the fan to turn on
Honeywell's round mechanical mercury thermostat "The Round" has 6 connectors. Only 4 are necessary for a typical HVAC system.
B : black
G : green : Fan
Y : yellow : Cool
W : white : Heat
R : red : 24v
O : orange
A modern electronic thermostat may have as many as 8 connectors. To connect this to a 4 wire 24v system use the following:
W : white : heat
Y : yellow or black wire : cool
G : green : fan
B :
O :
RC : red wire : 24v - bridge to RH
RH : red wire : 24v - bridge to RC
C :
