Heatcraft Refrigeration Products 25000601 - Manual (Page 7)

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will continue to operate and maintain the box temperature. This occurs only if an external
power supply is used on the Beacon II Smart Controller.
If the Beacon II Smart Controller LCD displays all 88888 this indicates that the power
supply is below 18 VAC. When this occurs the system will power down and shut off. When
the power supply is corrected to 24 VAC, the system will restart after the four-minute hold
off period and resume normal operation. The Beacon II Smart Controller LCD display will
then be normal.
INITIALIZATION of BEACON II SMART CONTROLLER
When power is first applied to the Beacon II Smart Controller it checks the configuration of the
system to which it is connected and stores this in its memory. Beacon II Smart Controller
checks how many condensing units there are and how many evaporators are connected to
each condensing unit. The order in which the units are wired from the multi-out of the Beacon II
Smart Controller determines the unit ID (UNI-4) assigned by the Beacon II Smart Controller.
This is called initialization.
Whenever a system is added, removed or modified (changing
the number of evaporators on a condensing unit), while connected to the Beacon II
Smart Controller, it must be re-initialized.
Place all systems in the service mode before initializing the Beacon II Smart Controller.
Make sure all wiring changes to the system and the Beacon II Smart Controller are complete
and accurate before initializing the Beacon II Smart Controller. Each SLAVE Evaporator must
also be programmed as a SLAVE BEFORE the system is initialized. The “SLA” setpoint must
be set from the board programming. It cannot be done from the Beacon II Smart Controller.
To initialize the Beacon II Smart Controller (for version 1.2),
• Press and Hold both the ENTER and CLEAR buttons until the LCD displays EEROM?
• Release the ENTER and CLEAR buttons quickly, then press the ENTER button
• The LCD will display WAIT
It may take up to 2 minutes to complete the initialization of the system after which the normal
LCD screen will appear.
BUTTON FUNCTIONS
• SYSTEM SELECTION BAR: If two or more systems are being controlled from the
Beacon II Smart Controller, this bar allows switching between systems. The display will
show the SYS number and all parameters related to that system. The cover plate of
Beacon II Smart Controller, when pushed will also change the display between systems.
• CLOCK (+ -) This is used to set the time of day on the display.
• Depress the + button to move the clock forward
• Depress the - button to move the clock backward
• When in PROG Mode, these are used to step through values for setting superheat etc.
for each evaporator of the system(s) attached to the Beacon II Smart Controller and for
different defrost start time periods.
Initialization of Beacon II Smart Controller