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US 12,680,719 B2Granted
Quick heat algorithm for modulating heating equipment
AssigneeJohnson Controls Light Commercial IP GmbH
InventorRakesh Mathew
Life of this patent
Estimating the term…
Abstract
A system includes a modulating furnace and control circuitry. The control circuitry is configured to receive a call for heating associated with a quick heat cycle. In response to the call for heating, the control circuitry is also configured to operate the modulating furnace in a quick heat operating mode for a threshold time period. Subsequent to the threshold time period, the control circuitry is also configured to operate the modulating furnace in a modulating heat operating mode.
Claims15
A controller of a modulating furnace of a heating, ventilation, and air conditioning (HVAC) system, the controller comprising a tangible, non-transitory, computer- readable medium having computer-executable instructions stored thereon that, when executed, are configured to cause processing circuitry to:
- receive a call for heating, wherein the call for heating is indicative of a user selection of a quick heat mode received via a user interface;
- operate the modulating furnace in a quick heat operating mode for a threshold time period
- in response to receipt of the call for heating indicative of the user selection;
- in response to lapse of the threshold time period, transition operation of the modulating furnace from the quick heat operating mode to a modulating heat operating mode;
- and
- during operation in the modulating heat operating mode modulate an operating capacity of the modulating furnace based on a value of a temperature difference between a set point temperature of a conditioned space and a measured temperature of the conditioned space,
- wherein the computer executable instructions, when executed, are configured to cause the processing circuitry to:
- receive an additional call for heating subsequent to receipt of the call for heating:
- determine a number of heating cycles executed by the modulating furnace between the call for heating and the additional call for heating:
- associate the additional call for heating with a quick heat cycle in response to a determination that the number of heating cycles meets or exceeds a threshold number of cycles;
- and
- operate the modulating furnace in the quick heat operating mode in response to the additional call for heating being associated with the quick heat cycle.
9 more elements
A heating, ventilation, and air conditioning (HVAC) system, comprising:
- a furnace configured to operate in a modulating heat operating mode and in a quick heat operating mode;
- and
- a control system comprising control circuitry configured to:
- receive a user selection of the quick heat operating mode via a user interface;
- initiate operation of the furnace in the quick heat operating mode based on receipt of the user selection;
- operate the furnace in the quick heat operating mode for a threshold time period;
- in response to lapse of the threshold time period, transition operation of the furnace from the quick heat operating mode to the modulating heat operating mode;
- and
- during operation of the furnace in the modulating heat operating mode modulate an operating capacity of the furnace based on a value of a temperature difference between a set point temperature and a measured temperature,
- wherein the control circuitry is configured to:
- receive a call for heating, wherein the call for heating is indicative of the user selection of the quick heat operating mode;
- and
- associate the call for heating with a quick heat cycle based receipt of the call for heating indicative of the user selection of the quick heat operating mode, receive an additional call for heating;
- determine a number of heating cycles completed by the furnace since receipt of a previous call for heating associated with the quick heat cycle;
- in response to a determination that the number of heating cycles meets or exceeds a threshold number of cycles, associate the additional call for heating with the quick heat cycle;
- and
- operate the furnace in the quick heat operating mode for the threshold time period in response to the additional call for heating being associated with the quick heat cycle.
14 more elements
A control system for a heating, ventilation, and air conditioning (HVAC) system, comprising:
- processing circuitry;
- and a tangible, non-transitory, computer-readable medium comprising instructions stored thereon, wherein the instructions, when executed, cause the processing circuitry to:
- receive a call for heating indicative of a user selection of a quick heat mode;
- associate the call for heating with a quick heat cycle in response to receipt of the call for heating indicative of the user selection of the quick heat mode;
- operate a furnace of the HVAC system in a quick heat operating mode in response to the call for heating being associated with the quick heat cycle;
- subsequent to lapse of a threshold time period associated with the quick heat operating mode, transition operation of the furnace from the quick heat operating mode to a modulating heat operating mode;
- and
- operate the furnace in a modulating heat operating mode to modulate an operating capacity of the furnace based on a value of a temperature difference between a set point temperature of a conditioned space and a measured temperature of the conditioned space, wherein the instructions, when executed, cause the processing circuitry to initiate operation of the furnace in the quick heat operating mode in response to a determination that a number of heating cycles completed by the furnace since a last heating cycle associated with the quick heat cycle exceeds a threshold number of cycles.
5 more elements
Dependencies are inferred from the claim text.