Make-up air energy recovery ventilator

摘要

In an air conditioning system designed to operate in relatively high humidity conditions, an auxiliary unit, including a complete and independent operating refrigerant circuit, is installed in air flow relationship therewith such that outdoor make-up air is caused to flow first through an auxiliary evaporator coil then through the system evaporator coil, and at least a portion of the return air is passed through an auxiliary condenser coil before being discharged outside. Energy is thereby recovered from the return air, and the make-up air is pre-conditioned to improve the dehumidifying effect of the system.