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Basin Heater and Stand Alone BAC Heater Control
Panel (Optional)
One or more stainless steel electric immersion heaters prevent the cold water basin from
completely freezing over and damaging the unit during shutdown or standby. The heaters
are sized for the specific unit. The heating element has an enclosure that is suitable
for outdoor use. Annually, inspect the basin heater prior to the risk of reaching freezing
operating conditions.
Operation
Ensure that the heating element is completely submerged before energizing the main
disconnect. The basin heater option includes a stand alone BAC heater control panel and
a combination temperature/water level sensor. The stainless steel sensor probe with 1/2”
NPT mounting fitting has an on/off relay output that de-energizes the heaters whenever
the basin water temperature is above 45°F (7.2°C), or whenever the sensor probe is not
fully submersed. The control panel enclosure is suitable for outdoor use.
The control system utilizes a combination temperature/low water level control sensor,
which is powered by a transformer in the control panel. When the sensor provides a
signal to the control panel, the panel sends a control voltage to the magnetic contactors.
When energized, the magnetic contactors supply line voltage to the heaters. Annually
inspect the heater control system prior to the risk of reaching freezing operating
conditions.
NOTICE:
The basin heater is not
designed to prevent icing during
unit operation.
Figure 32.
Basin Heater
NOTICE:
The heater control panel
temperature/low level control can
only be used with the supplied
combination temperature/water
level sensor probe. Please contact
your local BAC Representative for
replacement parts.
NEXUS
®
MODULAR HYBRID COOLER
Operation Considerations
for Accessories
6