Advertisement
Quick Links
SAFETY INFORMATION AND WARNING SUMMARY
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)
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 3 amp resistive for 24 VAC.
Electrical Shock / Fire Hazard (CONT.)
This product is intended for use in residential or light
commercial applications.
Make certain that the heater shield is properly
grounded. Failure to do so may result in damage to
the equipment or fire.
Following installation and prior to beginning system
operation, refer to and perform the Post-Installation
Tests (page 12) described in this manual.
Additional Information
More information is made available regularly
through our website, www.networketi.com.
Please visit us on-line for Data Sheets, Manuals,
White Papers, technical articles, and more. The most
current and up to date version of this and every other
manual for our products can be found in Acrobat
(PDF) format to view on-line 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.
INSTALLATION AND OPERATION MANUAL |
PART NO.
24861
REV
A.0
Advertisement
Related Manuals for ETI Snow Switch LCD-8
Summary of Contents for ETI Snow Switch LCD-8
- Page 1 Size the circuit breaker in accordance with the size of products to the best effect possible. If you have any comments about this or any other product from ETI. the expected load. The maximum current load for the LCD-8 is 3 amp resistive for 24 VAC.
- Page 2 general LCD-8 24VAC OVERVIEW The Snow Switch® Model LCD–8 (Figure 1) is a configurable • The green LED, ordinarily on steady, blinks to indicate a aerial snow melting system controller which makes automatic concern with the unit. This LED is also used in the LCD-8’s snow melting a cost-effective alterna- tive in even the smallest configuration process.
-
Page 3: Installation
UNPACKING THE LCD-8 INSTALLATION Immediately upon receipt, inspect the container and packing With user-supplied hardware, mount the LCD-8 securely in an material for any noticeable damage. Unpack the unit, taking upright position (sensor grid at top; see Figure 3) in a clear and care not to damage the packing materi- als. - Page 4 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.
- Page 5 INITIATING HOLD-ON STATE ALARMS The user can also swipe the magnet to start a hold-on cycle or When the LCD-8 operates normally, its green LED is lit to terminate a hold-on cycle. If a manual cycle is started, it continuously. Under an alarm condition, this LED will flash operates for the normal hold-on duration (note: if the hold-on rapidly—on and off twice a second.
-
Page 6: Magnetic Reed Switch
LCD-8 MAGNETIC REED SWITCH FIGURE 6 The LCD-8 uses an internal magnetic reed switch (Figure 4), where the user swipes a magnet (Figure 5) externally across this Positioning (left) and swiping (right) external Magnet over switch (Figure 6) to start a hold-on cycle or to terminate a internal Magnetic Switch running hold-on cycle. - Page 7 LCD-8 CONFIGURATION SETTING THE CONFIGURATION The user is able to configure three operating parameters on the There are three fields available for configuration. Each has Snow Switch Model LCD–8. several numerical values possible, as follows: These are: FIELD 1: HOLD-ON TIME FIELD 2: OPERATING TEMPERATURE FIELD 3: LOW TEMPERATURE LOCKOUT VALUES...
- Page 8 TO ENTER THE CONFIGURATION PROCESS TO SAVE THE NEW VALUE After changing parameters, hold the magnet over the magnetic • Hold the magnet to the switch for 3 seconds switch for 3 seconds. The green LED turns off then flashes a brief message (3 short pulses and a long pulse), and return to •...
- Page 9 Mounting Pole mount Dimensions 4.6" (W) x 6.1" (H) / 117mm (W) x 155mm (H) CONTROL Supply voltage ETI PN 24781: 24VAC; 50/60 Hz Load 3 amp maximum inductive 3 amp maximum resistive Heater Hold-On timer 0, 1, 3 (default) or 5 hours; configured by magnetic reed switch Set point temperature Off (moisture only), 36°F, 38°F (default), 38°F;...
- Page 10 fitness for any particular purpose. ETI reserves the right to revise this publication, and to make changes and improvements to the products described in this publication, without the obligation of ETI to notify any person or organization of such revisions, changes or improvements.
Need help?
Do you have a question about the Snow Switch LCD-8 and is the answer not in the manual?
Questions and answers