Perfect Window™ Fresh Air Energy Recovery Ventilation Systems Energy Recovery Ventilators provide proper levels of ventilation with energy savings by transferring heat and moisture between the exhaust and fresh air streams.

• Includes heat/energy transfer core, pre-filters, and fan and blower assembly.
• Provides ventilation that helps contractors meet ASHRAE 62-89.
• Automatic, economical, built-in defrost available for operation to design temperatures of -40F.
• Electronic ventilation fan timer option.
• Low voltage, high-speed override.
• Variable fan speed control.
• Easy-to-clean with a vacuum, cross-flow enthalpic core assures years of trouble-free operation.
• Insulated cabinet.
• Rugged steel cabinet.
• Quiet operation.
• Permanent (washable) pre-filters.
• Integral balancing dampers.
• Includes vibration isolation hardware and duct collars.