Part number 20047, Rev 0
10
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.
In alarm mode, it flashes every half-second.
In alarm mute mode, it gives a short blink every second.
In battery mode, it gives a short blink every two seconds.
The BEEPER shows alarm conditions and user activity.
In alarm mode, it gives a long beep.
In alarm mute mode, it gives a short chirp.
It gives an audible tick to indicate a button has been pressed.
The MUTE/PROGRAM button has three functions.
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.
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.
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.
In Normal Run mode, pressing the button causes the high temperature set point to be
displayed.
In Programming mode, pressing the button increases the displayed parameter value.
The DOWN button has a different function for each operating mode.
In Normal Run mode, pressing the button displays the low temperature set point.
In Programming mode, pressing the button decreases the displayed parameter value.
