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BAS-SVX078E-EN
Operation
PI Control
The Pivot thermostat uses proprietary control schemes to provide comfort and energy efficiency. The
unit senses the indoor temperature and determines capacity required based on the following:
• Mode of Operation
• Proportional Error- Distance from Setpoint
• Integral Error- Time Away from Setpoint
Load Values
Load Value, Heating
The Pivot thermostat uses proportional, plus integral error, to determine the amount of capacity
required. The calculated capacity is displayed as load value. Load value is a numerical representation of
the needed capacity to maintain setpoint and the range is dependent on the applied system.
Load Value, Cooling
• 0 to 100; single stage compressor
• 0 to 200; two-stage compressor
A load value of 50 represents a request of 50% demand for single stage cooling units (Y) or 50%
demand for state one of multi-stage cooling unit (Y1). A load value of 150 represents a request of 100%
demand for stage one (Y1) and 50% demand of stage two (Y2) for multi-stage cooling units.
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