![]() Place the system switch in the COOL mode of operation. Follow steps 3 through 5 to set the set point times and temperatures for the MORN, DAY, EVE and NIGHT set points for the Weekend group in the HEAT mode. The hour portion of the MORN set point time and the AM/PM indicator will be flashing. The display will show SA, SU to indicate the Weekend group is being programmed. After pressing the PROG button, you will enter the Weekend Program Group. ![]() Follow steps 3 through 5 to set the set point times and temperatures for the MORN, DAY, EVE and NIGHT set points for the Weekday group in the HEAT mode. ![]() Again, you will see the hour portion of the set point time and the AM/PM indicator will be flashing. ![]() The thermostat will now display the DAY set point time and temperature. Press the or button to change the set point temperature to the desired setting in 1˚ F increments (0.5˚ C). The temperature digits will begin flashing. Press the or button to change the time to the desired minute in 10-minute increments. The minute portion of the set point time will begin flashing. Press the or button to change the time to the desired hour in 1 hour increments. All trademarks are the property of their respective owners.3. *Verify specific application requirements. Operating Humidity: 5% to 95% Relative Humidity.Heat pump systems 250mv – 750mv millivolt heating systems Compatibility: Gas, oil or electric systems.DC Power: 3.0 Volts DC (2 “AA” Alkaline batteries included).4 amp total maximum load (all terminals).3 amp total maximum load (all terminals).Electric Rating: 24 Volt AC (18-30 Volt AC).The thermostat can be mounted to a horizontal junction box. The thermostat shall have low battery indication and a front reset button will return all user and program settings to default values when pressed. The thermostat shall include non-volatile memory to retain user settings, adjustable temperature limits, filter check monitor, adaptive recovery mode (ARM™), and separate heating and cooling set point program times and temperatures. 5° C), and humidity range between 5% and 95% relative humidity. Temperature control range shall be between 45° and 90° F (7° and 32° C), the accuracy of +/- 1° F (+/. The thermostat shall have a bright blue backlight display and a separate sub-base for trouble-free installation. The thermostat shall be compatible with single-stage gas, oil, or electric heating or cooling systems including single-stage heat pumps and 250mv – 750mv millivolt heating systems. The digital programmable thermostats shall be PROSELECT® model numbers PSTSL11P52 and PSTSL21P52, 3.62” high x 4.72” wide x 1.38” deep, powered independently with either 24 Volt AC or with two “AA” alkaline batteries (3.0 Volt DC). Temporary Program Override for 4 Hours or Until Next Set Point.Non-Volatile Memory Retains User Settings.Adjustable Temperature Set Point Limits.Large Display with Bright Blue Backlight.5 REFERENCE: Proselect PSTSL11p52 programmable thermostat
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