## F1.2 Summary of Requirements:

Prescriptive compliance approach –

1. Zonally controlled systems are not required, but if installed must meet mandatory AF/FE requirements (slightly different test methods for single speed and variable speed compressors)

2. Bypass ducts/dampers are NOT allowed.

Performance compliance approach –

1. Zonally controlled systems must be modeled if installed.

2. Bypass dampers allowed only if modeled.

3. Dual speed/multi speed condensers may also qualify for a credit (reduced penalty) and if modeled, must be installed.

Note: when a feature is “modeled” using the performance compliance approach it will appear on the certificate of compliance.