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Need thermostat


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New aprilaire thermostat will handle all of those inputs.


I1 & I2—Indoor Air Quality control output

C—Common (optional when powered by batteries)

O/B—Reversing valve

Y—First-stage cooling / compressor

Y2—Second-stage cooling / compressor


RC—24VAC supply cooling1

R—24VAC supply heating1

W2—Second-stage heat / auxiliary

W—First-stage heat / auxiliary

L—System fault indicator (optional) (heat pump only)

S1 & S2—Outdoor temperature sensor (included)

T1 & T2—Remote temperature sensor (optional)

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