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Safety Sensors & Warnings
HVAC systems can be equipped with many
different safety sensors to help prevent energy
loss, drain pan flooding, coil leaks and more.
Standard Sensors
Unilux HVAC systems come standard
with the following sensors:
Drain pan overflow sensor
– Alerts the HVAC unit and unit owner that the drain
pan is full and about to overflow. An alert appears on the thermostat and through
the Universe app. It also shuts down the HVAC system to prevent creating any more
condensate water which would cause the drain pan to overflow.
Freeze protection sensor
– Alerts the HVAC unit and unit owner when air entering
the unit drops below 4°C/39°F. An alert appears on the thermostat and throughout
the Universe app. It also forces the unit to run hot water through the coil to prevent
the hydronic coil from freezing.
Clearing Safety Warnings
Safety warnings will clear automatically, and proper operation will resume
only when the issues have been resolved. To resolve safety warnings, contact your property
manager and an authorized service technician for your type of HVAC system.
Drain pan overflow sensor
– This step below should only be performed by an
authorized technician. Remove all blockages from the drain pan and snake the drain
to ensure proper drainage. Use a soft, flexible tool to snake the drain so the hose
does not get punctured.
Freeze protection sensor
– Close all exterior windows and doors and prevent
freezing air from entering the HVAC system.
Heat pump warnings
– All system warnings on heat pumps will show a red dot on the
screen. This can mean the drain pan is full, the incoming air is below the threshold or
another heat pump related issue.
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