| CPC F24F 11/86 (2018.01) [F24F 11/63 (2018.01); F24F 2110/10 (2018.01)] | 16 Claims |
|
1. A control module for a space conditioning system operable with a stages thermostat, the control module comprising:
an output terminal configured to output a speed reference signal having a plurality of values corresponding to a plurality of speeds of a motor;
a first input terminal, the first input terminal configured to receive a first input signal from the stages thermostat;
a second input terminal, the second input terminal configured to receive a second input signal from the stages thermostat, the second input signal corresponding to a second value of the plurality of values; and
control logic operable to cause the control module to:
detect receipt of the first input signal at the first input terminal;
responsive to detecting receipt of the first input signal, output a first value of the plurality of values, the first value corresponding to the first input signal;
after outputting the first value, output one or more values of the plurality of values, the one or more values being larger than the first value;
detect receipt of the second input signal at the second input terminal; and
responsive to detecting receipt of the second input signal, output a second value of the plurality of values, the second value corresponding to the second input signal,
wherein the one or more values are based on a rate of change, the rate of change being a ratio of the difference between the second value and the first value and a time period between receipt of the second input signal and the first input signal during a preceding processing cycle of the control logic.
|