ETI Snow Switch EUR-5A Quick Reference Installation Manual Download Page 2

South Bend, Indiana USA 

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SNOW/ICE CONTROL INSTALLATION GUIDE  |  PART NO. 

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INSTALLATION

The system installation with the EUR–5A snow and ice 

melting  control  should  be  performed  by  a  qualified, 

licensed electrician. The installation and all electrical 

connections should conform to the NEC (ANSI/NFPA 

70) in the United States of American, to the Canadian 

Electrical Code in Canada, and to all applicable local 

electrical codes and laws.

The EUR–5A and ETI sensors are Class 2 devices and 

utilize Class 2 wiring. The EUR–5A should be housed in 

a protected location that meets local electrical code. 

The EUR–5A can be mounted in the same panel as the 

heater contactors, as long as no unrelated circuits are 

present and the required internal spacings and barriers 

are implemented. If the EUR–5A needs to be located in an 

area where it might be exposed to environmental hazards 

the EUR–5A should be housed in a NEMA enclosure 

suited for the local environment.

Make sure that your installation and all electrical connections conform to the NEC (ANSI/NFPA 70) in the 

United States of American, to the Canadian Electrical Code in Canada, and to all applicable local electrical 

codes and laws. The EUR–5A, RCU–3, and ETI environmental sensor are all rated as NEC Class 2 devices.

Summary of Contents for Snow Switch EUR-5A

Page 1: ...able watts the result will be your available power for your sensors You can then take your available power and use that to determine the number of sensors you can use Each CIT 1 aerial sensor at least one is required uses 2 4 watts of power Each GIT 1 gutter sensor uses 6 watts of power Each SIT 6E pavement sensor uses 6 watts of power At least one CIT 1Areal sensor is required for an effective sn...

Page 2: ... should be housed in a protected location that meets local electrical code The EUR 5A can be mounted in the same panel as the heater contactors as long as no unrelated circuits are present and the required internal spacings and barriers are implemented If the EUR 5A needs to be located in an area where it might be exposed to environmental hazards the EUR 5A should be housed in a NEMA enclosure sui...

Page 3: ...ries with the 24 volt supply connection to the environmental sensors that use power this power source is full wave rectified These fuses are necessary to protect the EUR 5A from an overload or short in the sensor or its wiring The 24 VAC Return is not ground a floating ac power source such as the transformer secondary is used here 3 GROUNDING Terminals 18 or 19 The EUR 5A sensor circuits and the E...

Page 4: ...TER INTERFACE Terminals 10 11 12 13 14 15 and 16 The EUR 5A provides three contact closure outputs to the EMC to indicate operational status with indications of SupplyPresent SnowPresent andHeatOn Thesefloating relay contacts share a common connection terminal 13 The SUPPLY PRESENT terminal 14 connects to the common terminal 13 when the EUR 5A is receiving 24 volt power The SNOW PRESENT terminal 1...

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