Snow Switch LCD-7A Manuale utente
South Bend, Indiana USA | networketi.com SNOW SWITCH INSTALLATION MANUAL | PART NO. 21036 REV 0.0
MODEL LCD®
-7A
AUTOMATIC SNOW/ICE MELTING SYSTEM CONTROL PANEL
South Bend, Indiana USA | networketi.com SNOW SWITCH INSTALLATION MANUAL | PART NO. 21036 REV 0.0
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INSTALLATION
Mount sensor securely in upright position in clear (open)
area typical of area to be melted, either above roof line
or removed from building so as not to be protected from
falling snow.
AVOID overhead trees, shrubs, wires, eaves, etc., and
falling or blowing debris.
AVOID vehicle and foot trafc. Do not create a safety
hazard.
AVOID exposure to articial heat sources and excessive
shock and vibration. Install per all applicable electrical
and building codes and regulations.
POST–INSTALLATION SNOw SwITCh® TEST
Most problems result from installation errors. Before
testing, verify that unit is properly installed.
1. Connect power to snow melting system. Wait 15
seconds; system should not actuate.
2. Using ice water or other cooling agent, cool ambient
air temperature sensor to below 38°F (3.3ºC); system
should not actuate. Apply moisture to moisture
sensing grid. System should actuate in less than 15
seconds.
3. Dry moisture sensing grid. Disconnect power to snow
melting system. Wait 1 minute, then reconnect power.
If system actuates, ensure sensing grid is dry and
ambient air temperature is above 38°F (3.3°C), then
repeat this step.
INSTALL IN ACCORDANCE WITH THE REQUIREMENTS OF ALL APPLICABLE ELECTRICAL AND BUILDING CODES
AND REGULATIONS. ENSURE THAT ALL CONDUIT/CABLE TERMINATIONS ARE WATERTIGHT.
South Bend, Indiana USA | networketi.com SNOW SWITCH INSTALLATION MANUAL | PART NO. 21036 REV 0.0
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OPERATING TEMPERATURE DESCRIPTION
Range (Min/Max) –40/140°F (–40/60°C)
Setting 38°F (3.3°C)
Tolerance (+/–) 1.5°F (–17°C)
Lockout temperature
Setting ––
Tolerance (+/–) ––
Hold-On Timer
Nominal Timer 3 Hr.
Tolerance (+/–) 1%
Output Relay
Rated Voltage (Volts AC 50/60 Hz) 120 Volts
Maximum Load 16 Amps
Supply
Rated Voltage (Volts AC 50/60 Hz) 120 Volts
Tolerance (+/–) 10%
Nominal Power 0.6 Watts
The ETI logo, Snow Switch, LCD and We Manage Heat are registered trademarks of Environmental Technology, Inc. All rights reserved.
QuESTIONS AND COMMENTS
For technical help, questions or comments concerning
this product or any of Environmental Technology, Inc.
products, contact Customer Service between 8:00 a.m.
and 5:00 p.m. EST.
Email: [email protected]
Web: http://www.networketi.com
LIMITED wARRANTY
ETI’s two year limited warranty covering defects in
workmanship and materials applies. Contact Customer
Service for complete warranty information.
DISCLAIMER
EnvironmentalTechnology, Inc. makes no representations
or warranties, either expressed or implied, with respect
to the contents of this publication or the products that
it describes, and specically disclaims any implied
warranties of merchantability or tness for any particular
purpose. Environmental Technology, Inc. reserves the
right to revise this publication, and to make changes
and improvements to the products described in this
publication, without the obligation of Environmental
Technology, Inc. to notify any person or organization of
such revisions, changes or improvements.
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