Locking Beacon Ii Board - Heatcraft Refrigeration Products H-IM-79D Installation & Operation Manual

PROGRAMMING AND REVIEWING SETTINGS/CHANGES (cont'd.)
Use this button to "CLEAR/TEST"
Pressing this button ONCE will return the LED display to the default
display. With the system in the OFF mode, pressing and holding
this button will start the "TEST" mode. In the "TEST" mode it will
cycle through each output for 10 seconds. The display will only
show "tst" during "TEST" mode. Test mode will automatically
terminate after 3 sequences.
LOCKING THE BEACON II BOARD
The Beacon II board is lockable to prevent programmed setting changes by unauthorized
personnel. When locked, the program setpoints cannot be changed.
To lock the setting:
• Press "PROGRAM REVIEW" button.
• Press and hold "MONITOR" button.
• While holding "MONITOR" button, press "ENTER" button.
• The LCD will display Loc.
This will prevent unauthorized personnel program changes. To unlock, repeat steps above.
LCD will display "UnL".
STATUS INDICATOR LED
A RED, three-digit , alphanumeric LED on the Beacon II board indicates status, alarms and
error codes.
• OFF
All Evaporators
• COOLING
Single Evaporator
Multiple Evaporators
Master Evap -
Slave Evaps -
• Pumpdown
All Evaporators
• DEFROST
All Evaporators
• TEST
All Evaporators
• SERVICE
All Evaporators
• ALARMS
Programming & Reviewing
LED Display
Box Temp / oFF
- Box Temp / Coo
Box Temp / Coo
Coo
Pdn
dEF
tSt
SEr
A 1
A 2
A 3
A 4
Box Temperature/ Mode is displayed
Box Temperature/ Mode is displayed
Box Temperature/ Mode is displayed
Operating Mode is displayed
High Box Temp
Low Box temp
System Start-up failure
Compressor pumps down and tries to
restart after 4 minutes.
Input Fault
Box Temp., Suction Temp., Pressure
Transducer open or not installed
15