SMC Networks HRS090-A, Operation Manual

Page: 96 / 196

HRX-OM-S004
Chapter 5 Display and setting of various functions
5.11
Anti-freezing function HRS Series
5-30
z This function can be activated only when the power supply is ON
and the thermo-chiller is not operating.
z Fully open the valve or manual bypass valve that is arranged by the
user to make it possible for the circulating fluid to circulate when
the pump starts automatic operation.
z In extremely cold weather, the heat generated by the pump
operation may not be enough to prevent freezing of the circulating
fluid.
z During the automatic operation, the pump does not stop even if the
"RUN/STOP" button is pressed. To stop the pump, turn the power
supply OFF or turn this function OFF.
z This function does not prevent the automatic water fill circuit from
being frozen. Countermeasures against freezing of the automatic
water fill circuit should be taken with the user's equipment.