Bryant 548F User Manual
Page 13
13
CONTROLS (cont)
OPERATING MODES
BP — Building Pressurization:
Indoor fan on, economizer energized to fully open position, power exhaust disabled.
E
— Evacuation:
Indoor fan off, economizer energized to fully open position, power exhaust on (open).
SD — Complete Unit Shutdown: Breaks 24-v power to the thermostat.
SP — Smoke Purge:
Indoor fan on, economizer energized to fully open position, power exhaust on.
See Legend on page 14.
*Included in power exhaust accessory.
LEGEND
Field Wiring
Field-Supplied Switch
Typical Smoke Control/Fire Shutdown Wiring — 542J150,180
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