Part number 20079, Rev 0
8
The STATUS tricolor LED shows the status of the unit.
Green = normal run mode
Amber = program mode
Red = temperature is out of range (The light blinks off briefly each second to show the
unit is active)
The ALARM/TEST push-button interrupts line power, to allow testing of the battery and the
alarm relay.
The bright red ALARM LED shows alarm conditions.
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In alarm mode, it flashes every half-second.
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In alarm mute mode, it gives a short blink every second.
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In battery mode, it gives a short blink every two seconds.
The BEEPER shows alarm conditions and user activity.
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In alarm mode, it gives a long beep.
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In alarm mute mode, it gives a short chirp.
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It gives an audible tick to indicate a button has been pressed.
The MUTE/PROGRAM button has three functions.
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In Normal Run mode, if the unit is beeping, pressing the button will mute the beeper for a
preset time. Each time the button is pressed the mute time resets.
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Holding the button down for two seconds takes the unit out of Normal Run mode and into
Programming mode. At the same time, it mutes the beeper.
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When in Programming mode, pressing the button steps the unit through the various
programming parameters.
The UP button has a different function for each operating mode.
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In Normal Run mode, pressing the button causes the high temperature set point to be
displayed.
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In Programming mode, pressing the button increases the displayed parameter value.
The DOWN button has a different function for each operating mode.
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In Normal Run mode, pressing the button displays the low temperature set point.
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In Programming mode, pressing the button decreases the displayed parameter value.
