Справочник Пользователя для Carrier 17/19EX

Shutdown Sequence

Shutdown of the machine can occur if any of the following events happen:

•

the STOP button is pressed for at least one second (the alarm light will blink once to
confirm stop command)

•

recycle condition is present (see

section)

•

time schedule has gone into UNOCCUPIED mode

•

remote contact opens

•

the start/stop status is overridden to stop from the CCN network or the LID

When a stop signal occurs, the shutdown sequence first stops the compressor by

deactivating the start relay. A status message of ‘‘SHUTDOWN IN PROGRESS, COMPRES-

SOR DEENERGIZED’’ is displayed. The guide vanes are then brought to the closed position.

The oil pump relay and the chilled water/brine pump relay are shut down 60 seconds after the

compressor stops. The condenser water pump will be shut down when the

CONDENSER

REFRIGERANT TEMP is less than the CONDENSER PRESSURE OVERRIDE minus 5 psi

(34 kPa) or is less than or equal to the

ENTERING CONDENSER WATER TEMP plus 3° F

(2° C). The stop-to-start timer will now begin to count down. If the start-to-start timer is still

greater than the value of the start-to-stop timer, then this time is now displayed on the LID.