Snow
melt system controls just got configurable. Along with ETI’s
legendary CIT-1 aerial sensor, the Snow Switch LCD–8 with its
configurable magnetic switch, makes automatic snow melting a cost
effective alternative in even the smallest applications.
Heaters
operate at temperatures below the set-point, 38°F (3.3°C) default,
only when required. The adjustable hold-on period, 3 hours default,
continues heater operation after snow stops to ensure complete
melting.
The
LCD–8 controller’s internal magnetic reed switch is used to
trigger manual heater cycling and to configure the system’s
temperature set-point and hold-on time. The LCD–8 controller
operates from either the automatically selecting 100VAC – 240VAC
unit, part number 24619, or from the 24VAC unit, part number 24781.
The distinct voltage options, along with their configurable
temperature set-point and hold-on time functions, are engineered to
address a broad number of applications from just two SKUs.
The
LCD–8 controls heater loads up to 16 amps resistive or 3 amps
inductive. The operating temperature range is –40°F to 140°F
(–40°C to 60°C). The redesigned, patent pending, rugged
polycarbonate enclosure provides excellent protection at temperature
extremes and allows snow to fall away, preventing “iglooing” over
the moisture sensor.
The
internal magnetic reed switch allows for both configuration and
manual heater operation without the need for external switches—which
are susceptible to damage—or opening the unit.
Before
the LCD-8, verifying system functionality after installation or
troubleshooting used to require ice or circuit cooler spray for
controller activation. Today, the LCD–8’s Sno- Test feature
performs a self-test after power application, operating heaters in a
unique pattern for a few seconds. Reading the test results takes only
an AC voltmeter or clamp-on ammeter.
