Three Controls That Matter

Recovery units need more than a fan. The right controls protect the core and maximise savings.

Summer Bypass

When no recovery is wanted (free cooling or mild weather), a bypass diverts air around the core so the coil does the work.

Frost Protection

In cold climates, preheat, timed bypass, or recirculation keeps the exhaust above freezing. Set the trigger from the real minimum temperature.

Modulation

Variable-speed fans and wheel speed match recovery to demand, avoiding over-recovery that wastes fan energy.

Alarms

Monitor pressure-drop trend and supply-air temperature; a rising drop or falling effectiveness signals fouling or leakage.