Auto. Restart After Power Failure
This option may be enabl ed or di sabled, and may be viewed/ modified in the Config tab le of
Equipment Configuration. If enabled, the chiller will start up automatically after a single cycle
drop-out, low, high, or los s of voltage has occurred, and t he power is within ±10% of normal .
The 15-min start-to-st art timer and the stop-to- start timer are ignored during this type of start-up.
When power is re stored after the power failure, an d if the compres sor had been runn ing, the
oil pump will be energized for one minute prior to the ev ap orator pump energizi ng. Auto restart
will then continue like a no rmal start-up.
IMPORTANT: Afield-supplied water temperature control system for condenser
water should be ins t a lle d. The system shoul d m a int a in t h e le av in g condenser wat er
temperature at a temper ature that is 20° F (11° C) abov e the leaving chilled wate r
temperature.
CAUTION CAUTION
!
The tower-fan rel ay control is not a subst itute for a condenser w ater temperature
control. When used with a Water Temperature Contr ol system, the tower fan
relay control can be used to help preven t low condenser wate r temperatures and
associated probl ems .