WIRING AND OPERATION (cont.)
All wiring should be done in accordance with local and national electrical codes and ordinances.
OPERATION
Heating
As the “Heat” contacts of the thermostat close, bimetal heater #1 is energized. Approximately 45 seconds later, the warping action of bimetal heater #1 closes line voltage switch #1 to energize the heating load. When the "Heat" contacts open, heater #1 cools for approximately 45 seconds before switch #1 opens to
Cooling
As the "Cool" contacts of the thermostat close, bimetal heater #2 is energized. Approximately 45 seconds later, the warping action of bimetal heater #2 closes line voltage switch #2 to energize the cooling load. When the "Cool" contacts open, heater #2 cools for approximately 45 seconds before switch #2 opens to
TYPE 1F36
FIXED THERMOSTAT
COOLING SWITCH
ANTICIPATOR BIMETAL
HEAT
ADJUSTABLE
HEATING
ANTICIPATOR
Y | O | R | W |
TYPE 24A06 DUAL LEVEL TEMP
WHITE | BLACK W/ |
WHITE STRIPE | |
RED |
|
BIMETAL | BIMETAL |
HEATER #1 | HEATER #2 |
| SWITCH #1 |
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| |
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| TRANSFORMER |
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| SWITCH #2 |
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| RED |
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| BLACK W/RED STRIPE | COOLING |
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HEATING | BLACK |
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| LOAD |
LOAD #1 |
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| RED W/BLACK STRIPE |
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| |
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| BLUE |
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| L1 | L2 | L1 | L2 |
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| LINE |
| LINE |
WIRING |
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Line Voltage |
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| Low Voltage |
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Line Voltage Field |
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| Low Voltage Field |
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Fig. 3. Using Heating-Cooling Thermostat to
Operate Heating and Cooling Loads
The Emerson logo is a |
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trademark and a service mark | 3 |
of Emerson Electric Co. |