Heat modulation dehumidification system

A dehumidification system, comprising:

• a secondary evaporator operable to receive an inlet airflow and output a first airflow, the first airflow comprising cooler air than the inlet airflow, the first airflow generated by transferring heat from the inlet airflow to a flow of refrigerant as the inlet airflow passes through the secondary evaporator;
• a primary evaporator operable to receive the first airflow and output a second airflow, the second airflow comprising cooler air than the first airflow, the second airflow generated by transferring heat from the first airflow to the flow of refrigerant as the first airflow passes through the primary evaporator;
• a secondary condenser operable to receive the second airflow and output a third airflow, the third airflow comprising warmer and less humid air than the second airflow, the third airflow generated by transferring heat from the flow of refrigerant to the third airflow as the second airflow passes through the secondary condenser;
• a compressor operable to receive the flow of refrigerant from the primary evaporator and provide the flow of refrigerant to a modulating valve, the flow of refrigerant provided to the modulating valve comprising a higher pressure than the flow of refrigerant received at the compressor;
• and
• a first fan operable to generate the inlet, first, second, and the third airflows;
• the modulating valve operable to:
• receive the flow of refrigerant from the compressor;
• direct the flow of refrigerant to a primary condenser if the temperature of a dehumidified airflow output by the primary condenser does not exceed a pre-determined set point monitored by the dehumidification system;
• direct at least a portion of the flow of refrigerant to the alternate condenser and direct a remaining portion of the flow of refrigerant to the primary condenser if the temperature of the dehumidified airflow is greater than the pre-determined set point;
• and
• direct the at least a portion of the flow of refrigerant back to the primary condenser if the temperature of the dehumidified airflow is lower than the pre-determined set point;
• the primary condenser operable to:
• receive the flow of refrigerant from the modulating valve if the temperature of the dehumidified airflow does not exceed the pre-determined set point;
• in response to the temperature of the dehumidified airflow exceeding the pre-determined set point, receive the remaining portion of the flow of refrigerant;
• and
• receive a fourth airflow and output the dehumidified airflow, the dehumidified airflow generated by transferring heat from the refrigerant to the fourth airflow as the fourth airflow contacts the primary condenser;
• a sub-cooling coil operable to:
• receive the flow of refrigerant from the alternate condenser;
• output the flow of refrigerant to a primary metering device;
• and
• receive the third airflow and output the fourth airflow, the fourth airflow generated by transferring heat from the flow of refrigerant to the fourth airflow as the third airflow passes through the sub-cooling coil;
• and
• the alternate condenser operable to:
• receive the at least a portion of the flow of refrigerant from the modulating valve if the temperature of the dehumidified airflow is greater than the pre-determined set point;
• and
• transfer heat from the flow of refrigerant to a flow of fluid as the alternate condenser receives the at least a portion of flow of refrigerant and the flow of fluid;
• and
• a first pump operable to cycle the flow of fluid towards and away from the alternate condenser.