Control process for climate control system based on outdoor humidity conditions

An outdoor unit of a climate control system, the outdoor unit comprising:

• a housing;
• an adjustable compressor located within the housing and configured to circulate a refrigerant fluid through the climate control system;
• a humidity sensor configured to detect a measurement representative of a humidity condition of an outdoor ambient environment;
• and
• control circuitry operably coupled to the adjustable compressor and configured to:
• establish a target parameter for controlling an operation of the adjustable compressor, the target parameter associated with a property of a refrigerant fluid circulated within the climate control system;
• receive a signal indicative of the measurement associated with the humidity condition of the outdoor ambient environment from the humidity sensor;
• convert the measurement representative of the humidity condition to an offset value, the offset value indicative of a latent cooling load associated with an indoor space conditioned by the climate control system;
• adjust the target parameter based on the offset value, the adjustment establishing an adjusted target parameter,
• monitor the property of the refrigerant fluid;
• compare the monitored property to the adjusted target parameter;
• and
• adjust an operation of the adjustable compressor based, at least in part, on the comparison of the monitored property to the adjusted target parameter.

A climate control system comprising:

• an outdoor unit including:
• a housing,
• an adjustable compressor located within the housing and configured to circulate a refrigerant fluid through the climate control system,
• a humidity sensor located within the housing and configured to detect a measurement representative of a humidity condition of an outdoor ambient environment,
• a pressure sensor coupled to the housing and configured to detect a pressure representative of the refrigerant fluid proximate an inlet to the adjustable compressor, and
• control circuitry located within the housing and coupled to the adjustable compressor, the humidity sensor, and the pressure sensor;
• and
• a non-communicating thermostat located outside the housing and associated with a conditioned space,
• wherein the control circuitry is further coupled to the non-communicating thermostat via a 24 volt (24V) communication protocol and configured to:
• receive a request for a cooling mode from the non-communicating thermostat via the 24V communication protocol;
• operate the outdoor unit in the cooling mode in response to the request;
• establish a target parameter for controlling an operation of the adjustable compressor, the target parameter associated with the temperature of the refrigerant fluid circulated within the climate control system;
• receive a signal indicative of the measurement associated with the humidity condition of the outdoor ambient environment from the humidity sensor;
• convert the measurement representative of the humidity condition to an offset value, the offset value indicative of a latent cooling load associated with an indoor space conditioned by the climate control system;
• adjust the target parameter based on the offset value, the adjustment establishing an adjusted target parameter,
• monitor the temperature of the refrigerant fluid proximate the inlet to the adjustable compressor using the measurements received from the pressure sensor,
• compare the monitored temperature to the adjusted target parameter, and
• adjust an operation of the adjustable compressor based, at least in part, on the comparison of the monitored temperature to the adjusted target parameter.