Step 1 - Audit the Duty

Record supply and exhaust airflow, indoor and outdoor design temperatures, and the allowable supply-air temperature. Confirm the streams are reasonably balanced.

Step 2 - Pick the Technology

• Simple, low-maintenance - crossflow plate core
• Highest effectiveness or humidity - rotary wheel
• Contaminated or separated streams - run-around coil
• Rugged, no moving parts - heat pipe

Step 3 - Check the AHU

• Physical space in or beside the unit
• Fan capacity for the added static pressure
• Controls for summer bypass and frost protection

Step 4 - Install

Slot the core into the AHU section, seal the interfaces, connect controls, and verify drainage for condensate.

Step 5 - Commission

Measure airflow and temperatures on both sides, compute actual effectiveness, and compare with the rated curve. Document the result as the baseline.