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You searched for: ETI EUR-5A 24V Snow & Ice Melting Automatic Control Panel for Electric & Hydronic, includes RCU-3 Remote Control
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ETI EUR-5A 24V Snow & Ice Melting Automatic Control Panel for Electric & Hydronic, includes RCU-3 Remote Control


Description


Automatic Snow/Ice Melting Control Panel for Electric & Hydronic Applications

Snow Switch Model EUR–5A Snow/Ice Melting Control

The EUR–5A brings the performance, economy and energy efficiency of the industry leading APS–3B to a wide range of commercial snow melting applications requiring electrical panel location. A rich assortment of features optimize EUR–5A performance for its intended applications and environment.

The EUR–5A interfaces multiple sensors from the CIT–1, GIT–1, SIT–6E family for flexibility in a wide range of pavement, gutter and downspout deicing applications. This feature is essential for large systems employing common heater switching.

Continuing heater operation after snow stops is often necessary to ensure complete melting. The EUR–5A provides an adjustable 10 hour hold-on timer for this purpose. Blowing, drifting and tracked snow sometimes occur without contacting a sensor. In this case, heaters can be manually toggled on for the hold-on time.

The EUR–5A includes an RCU–3 Remote Control to be placed at a location convenient for personnel capable of observing melting. It provides status indicators, a calibrated hold-on timer adjustment and a heater toggle switch. So, melting can be manually initiated should the need arise.

The EUR–5A interfaces a low voltage push-button switch that toggles the heaters for the hold-on time. When mounted on the front panel of the electrical enclosure, this feature eliminates the need to open the panel which promotes safety.

Energy and building management computers are becoming increasingly common. The EUR–5A accommodates this trend through an interface designed for this purpose. In addition to system status information, the interface permits remote overriding automatic operation to turn the heaters on or off upon command.

The 40°F to 90°F (4°C to 32°C) adjustable high temperature limit protects heaters, asphalt, pavement and other sensitive materials from damage due to excessive temperature while allowing heater testing during the summer months. At temperatures above the limit setting, toggled heaters operate for 30 seconds. Thereafter, the heater cannot be energized for two minutes. The standard temperature sensor is included. Options include pavement and aerial housings.

The EUR–5A and its sensors are 24 VAC NEC class 2 devices for easy installation and safety. The EUR–5A allows for 35 MM DIN rail mounting in electrical enclosures. The isolated SPDT 1 AMP 24 VAC relay contact controls the heater control contactors. A 120:24 VAC control transformer is included.


Specifications

Front Panel Interface

Status Indicators

Supply (green LED)
Snow/Ice (yellow LED)
Heat (yellow LED)

Heat Toggle Switch

At and above the temperature limit
Below the temperature limit

Hold-on Time Adjustment
0 to 10 hours

Temperature Limit Adjustment
40°F to 90°F (4°C to 32°C)


Sensor Interfaces

Moisture/Temperature Sensors
Up to six can be used simultaneously
Members of the CIT–1/GIT–1/SIT–6E family in any combination
Locate up to 2,000' (609.6m) from EUR–5A

Ambient Temperature Sensor
ETI Part Number 19272 with Thermistor Temperature included
Locate up to 2,000' (609.6m) from EUR–5A


Remote Interfaces

RCU–3 Remote Control Unit

User interface:
Hold-time adjustment
SUPPLY and HEAT LED indicators
2, 4, 6 or 8 hour hold-on time adjustment

Installation:
Mounts in a single gang wall box up to 500' (152.4m)
Non-polar electrical connections using 2 wires

Building/Energy Management Computers

Input interface:
Floating switch contact rated a 5 VDC at 10 mA

Functions:
OVERRIDE_ON: Operates heaters continuously independent of environmental conditions. Operation is inhibited at temperatures above the high temperature limit.
OVERRIDE_OFF: Inhibits heater operation.



Output Interface:
Normally open floating dry circuit Form A (SPST) switch contacts rated for 5 VDC at 10 mA

Status Indicators:
SUPPLY (green LED): EUR–5A power present
SNOW/ICE (yellow LED): At least one sensor detects icing conditions
HEAT (yellow LED): EUR–5A is calling for heater operation

Electric Panel
Normally open Form A (SPST) push button low current switch
Operation toggles heaters on for the hold-on time or off


Heater Control Relay
SPDT relay contact rated for 1 AMP 24 volt pilot duty service
Operates while the EUR–5A calls for heat


Supply Voltage
Use ETI Order Number 14257 Control Transformer (included)
NEC Class 2
21 to 28 VAC
2 VA maximum


Environmental

Operating temperature
-40°F to 140°F (-40°C to 60 °C)

Storage temperature
-67°F to 167 °F (-55°C to 75 °C)


Mechanical

Housing
NEMA 1

Mounting
On 35 MM DIN rail. DIN rail interface can be removed for conventional mounting.

Dimensions
4" wise by 4 7/8" deep by 3" high















Installation Instructions
Data Sheet
Item CodeDescriptionVendorQuantity
ETI19272
19272 Temperature Sensor
ETI (Environmental Technology Inc.) Ambient High Temperature Sensor with 20 Foot Lead for use with SST-2, SST-3, EUR-5A, APS-4C, SC-40C, APS-3C & GPT-3
ETI (Environmental Tech.)
ETI10001
CIT-1 Aerial Snow Sensor
ETI (Environmental Technology Inc.) General Purpose Snow Sensor used with any APS or EUR series control panel
ETI (Environmental Tech.)
ETI21496
EUR-5A & RCU-3 Snow & Ice Control, 24V
ETI (Environmental Technology Inc.) Snow & Ice Melting Automatic Control Panel for Electric & Hydronic, includes RCU-3 Remote Control
ETI (Environmental Tech.)
ETI11351
GIT-1 Gutter Ice Sensor
ETI (Environmental Technology Inc.) P/N 11351 - Gutter Mounted Ice Sensor. Automatic Gutter Deicing Controls Operating Costs with APS-3C or APS-4C Control Panel
ETI (Environmental Tech.)
ETI21357
RCU-3 Remote Control Unit
ETI (Environmental Technology Inc.) Flush or surface mount remote control & indication of Snow/Ice Melting Controllers (for use w/ PD Pro, RS Pro, APS-3C or EUR-5A)
ETI (Environmental Tech.)