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The new LR-5 includes the following features:
• Red LED for visual indication of an error condition
• Beeper for audible indication of an error condition
• Battery for indication of error even when the control has lost power
• Door open indication and door open too long alarm
• Remote Alarm Dry Contacts
The LR5 TempGuard provides a flashing red LED and an audible tone for alarm
situations. The alarms are run off a NiMH battery so that an alert occurs regardless
of whether or not the control has power. The feature package can be
enabled/disabled with a switch installed on the main circuit board. Moving the switch
to the ON position activates these features and moving it to the OFF position
deactivates these features.
The LR-5 TempGuard provides an indication if a door is opened by sounding a
single beep. If the door stays open for 10 minutes then the LR5 indicates that an
error condition has occurred by activating the red LED and the beeper.
Control Limits:
The High Temp and Low Temp can be adjusted within the entire range as desired.
The range varies depending on the model of refrigerator or freezer that was
purchased. The High Temp cannot be lower than the Low Temp.
If the High Temp is being lowered and it runs into the Low Temp it will push t he Low
Temp lower. The Low Temp will always be at least 4 degrees C less than the High
Temp.
If the Low Temp is being raised and it runs into the High Temp it will pus h the High
Temp higher. The High Temp will always be at least 4 degrees C higher than the
Low Temp.
The High Alarm can be adjusted in the range from the (High Tem p + 2) to the upper
limit.
The Low Alarm can be adjusted in the range from the (Low Temp – 2) to the lower
limit.
If the High Temp is being raised and it runs into the High Alarm, the High Alarm will
automatically be adjusted upward. The High Alarm is always at least 2 degrees
higher than the High Temp.
If the Low Temp is being lowered and it runs into the Low Alarm, the Low Alarm will
automatically be adjusted downward. The Low Alarm is always at least 2 degrees
lower than the Low Temp.