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MODEL LCD–8
AUTOMATIC SNOW/ICE MELTING SYSTEM CONTROL PANEL
SAFETY
Make all electrical connections in compliance with the National Electrical
Code (NFPA 70) and local electrical code. If you have questions
concerning the installation or application, contact Customer Service.
Abnormal Odor or Smoke
In the event of smoke or a burning or abnormal odor, immediately
interrupt power to the unit by unplugging the unit or by turning off the
circuit breaker protecting the unit.
Electrical Shock / Fire Hazard
Even when the snow melting elements are disconnected, as long as the
circuit breaker is on and power is running to the unit, voltage is still
being applied to the system's yellow leads. Therefore, never touch the
ends of the yellow leads or let the two leads touch each other. Do not let
the two yellow leads contact any component inside the unit.
Any installation involving electric heater wiring must be grounded to
earth to protect against shock and fire hazard. Suitable ground fault
detection and interrupting systems must be in use at all times to reduce
shock and fire hazard and to protect equipment.
Electric wiring to heating elements must be installed in accordance
with National Electrical Code (NEC) or Canadian Electrical Code (CEC)
requirements and all other local and applicable electrical codes and
any third party standards. Follow the installation instructions contained
herein and those provided by the heater manufacturer.
Use a GFEP (Ground Fault Equipment Protection) circuit breaker on
each branch circuit connected to the ice melting system. Clearly label
each circuit breaker with its function. This is vitally important when there
is more than a single point of disconnect.
Size the circuit breaker in accordance with the size of the expected load.
The maximum current load for the LCD-8 is 16 Amp resistive. This product
is intended for use in residential or light commercial applications.
South Bend, Indiana USA
|
networketi.com
SNOW/ICE CONTROL INSTALLATION MANUAL | PART NO.
24782
REV
C
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Summary of Contents for ETI SNOW SWITCH LCD-8
- Page 1 MODEL LCD–8 AUTOMATIC SNOW/ICE MELTING SYSTEM CONTROL PANEL SAFETY Make all electrical connections in compliance with the National Electrical Code (NFPA 70) and local electrical code. If you have questions concerning the installation or application, contact Customer Service. Abnormal Odor or Smoke In the event of smoke or a burning or abnormal odor, immediately interrupt power to the unit by unplugging the unit or by turning off the circuit breaker protecting the unit.
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Page 2: Additional Information
Acrobat (PDF) format to view online or to print. This is to assist you in installing and using our products to the best effect possible. If you have any comments about this or any other product from ETI, please contact us. FIGURE 1. LCD-8 PRODUCT OVERVIEW The Snow Switch®... - Page 3 ETI Technical Support for troubleshooting assistance. UNPACKING THE LCD-8 Before returning a unit to ETI, obtain a Return Merchandise Authorization from our Customer Service Department, available between 8:00 a.m. and 5:00 p.m. Eastern Time. If possible, use the original container and packing materials when packing the unit for shipment.
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Page 4: Installation
INSTALLATION With user-supplied hardware, mount the LCD-8 securely in an upright position (sensor grid at top; see Figure 3) in a clear and open area typical of the area to be melted, either above the roof line or removed from the building and exposed to, rather than protected from, falling snow. - Page 5 Install in accordance with the requirements of all applicable electrical and building codes and regulations. Ensure that all conduit and cable terminations are watertight. NEC Article 426.28 requires Equipment Ground Fault Protection (GFEP) for Ice and Snow Melting Equipment. This functionality is not provided as part of this controller and shall be provided as part of the overall system.
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Page 6: Initialization Sequence
INITIALIZATION SEQUENCE INITIATING HOLD-ON STATE Upon power up, the LCD-8 performs an initialization The user can also swipe the magnet to start a hold-on sequence, allowing a user or technician to verify its cycle or to terminate a hold-on cycle. If a manual cycle is operation. - Page 7 The override ends when the heaters turn off. However, if is that we can’t turn on the cup heater without risking a manual cycle is initiated when the environment is frigid, damage to the unit; and if snow or freezing rain falls and then snow starts, the heaters remain energized until with the cup cold, it may stay there for weeks, and the the snow stops and for the hold-on time thereafter.
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Page 8: Temperature Set-Point
LCD-8 MAGNETIC REED SWITCH FIGURE 11. Magnetic Reed Switch (internal) The LCD-8 uses an internal magnetic reed switch (Figure 11), approximately located just below the conical top and above the green LED. The user swipes a magnet (Figure 5) externally across this switch (Figure 6) to start a hold-on cycle or to terminate a running hold-on cycle. -
Page 9: Setting The Configuration
SETTING THE CONFIGURATION There are three fields available for configuration. Each has several numerical parameter values possible, as follows: Field 1: Hold-On Time Values 1: off 2: 1 hour 3: 3 hours* 4: 5 hours Field 2: Operating Temperature Values 1: none (precipitation sensor) 2: 36°F / 2.2°C 3: 38°F / 3.3°C*... -
Page 10: Ordering Information
Dimensions 4.6” (W) x 6.1” (H) / 117mm (W) x 155mm (H) Control Supply voltage ETI PN 24619: 100VAC – 240VAC; 50/60 Hz, ETI PN 24781: 24VAC; 50/60 Hz Load 3 amp maximum inductive, 16 amp maximum resistive Heater Hold-On timer 0, 1, 3 (factory preset) or 5 hours; configured by magnetic reed switch Set point temperature Off (moisture only), 36°F, 38°F (factory preset), 40°F;... -
Page 11: Contact Customer Service
Mail: ETI changes and improvements to the products described 1850 North Sheridan Street in this publication, without the obligation of ETI to notify South Bend, IN 46628 any person or organization of such revisions, changes or improvements.
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