OJ Electronics ETR2 Handbuch Seite 5

57654A-04-09.qxd:57099 07/05/09 12:12 Side 5
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When both preconditions (low temperature and moisture) are met, the thermostat will activate the ice and
snow melting system and the RELAY LED will light red. After the moisture/temperature signals have been
eliminated by a heating cycle, heat will continue to be provided for the specified length of time to ensure
that all ice and snow is completely melted.
If some ice and snow remains after the heating system has been deactivated, the afterheat duration should
be increased slightly by adjusting TIME SET. The longer the afterheat duration, the more effective and less
economical the system will be.
If ice and snow is present on the heated area but the TEMP LED is not lit, the temperature setpoint (TEMP
SET) should be increased to the point where the TEMP LED lights red. The higher the temperature setpoint,
the more effective and less economical the system will be.
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