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Summary of Contents for P274-21 00

Page 1: ...O the thermostat will provide automatic changeover from Heating to Cooling mode and Cooling to Heating mode when required The thermostat will automatically switch to maintain the desiredtemperaturesetting The thermostatdoes not needto be manually changedfrom heating to cooling or coolingto heatingoperation NOTE It is recommendedthat auto changeover modenot be usedif the outdoor temperarureis consi...

Page 2: ...value of 6 00 AM and UNI has a value of 7 00 PM this would not be acceptable because the difference is greater than 12 hours The value of UN2 must be greater than or equal to the value of OC2 while the value of OC2 must be greater than or equal to the value of UNl and the value of UNl must be greater than or equal to OC 1 For example acceptablevalues would be OCl UNl OC2 UN2 6 00AM 5 00 PM 5 00 PM...

Page 3: ... use new set point until the next scheduled time period starts Once the HOLD button is pressed the HOLD will last indefinitely until the HOLD but ton is pressed again The occupied ovenide can be used to force the thetmostat into Occupied mode Display Outdoor Air or Leaving Air Tempera ture When the Up and Down buttons are pressed at the same time the display will show the temperature of the sensor...

Page 4: ...discontinue or change at any time specifications or designs without notice and without incurring obligations REPLACEMENT COMPONENTS DIVISION C CARRI ER CORPORATION 11 99 PRINTED IN U S A LITERATURE NUMBER P274 1S0 REPLACES 997 550011 22 ...

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