beautypg.com

Bryant 559F User Manual

Page 40

background image

—

40

—

SWITCH CLOSES
ON BP,SP,E

EMC

EAS

*

OPEN
ON BP

OPEN ON E
CLOSED ON BP

OPEN
ON SD

CLOSED ON
BP,SP,E

COMPRESSOR WIRING

See Legend on page 2.
*Included in power exhaust accessory.

NOTE: All switches are field supplied.

OPERATING MODES

Fig. 21 — Smoke Control/Fire Shutdown Wiring; 579F180-300

BP — Building Pressurization:

Evaporator fan on, economizer energized to fully open position,
power exhaust disabled.

E

— Evacuation:

Evaporator 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:

Evaporator fan on, economizer energized to fully open position,
power exhaust on.

See also other documents in the category Bryant Conditioners: