Heatcraft Refrigeration Products H-IM-79E Refrigerator User Manual


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6
Each Beacon II board power is supplied by a transformer in the evaporator on which
it is mounted. Do not run any 24 VAC wires between Beacon II boards on the evaporators.
Conguration
CU
M
S
S
S
M = Master Evaporator S = Slave Evaporator CU = Condensing Unit
If there are multiple evaporators on a system, the
program for each SLAVE evaporator must be changed to
identify it as a SLAVE. To do so, press the “PROGRAM
REVIEW” button repeatedly until “SLA” appears then
use the “SELECT” knob to select “YES” then press
“ENTER”. All Beacon II boards are shipped with the
factory default as a MASTER evaporator. Place all
boards in the “SERVICE” mode while you program the
setpoints to avoid errors and alarms which may cause
troubles at startup.
VERYIMPORTANT: This must be done for each slave
board.
MultipleEvaporatorConguration(Master/slave)
Up to 4 evaporators can be connected as a
master/slave conguration. DONOTremovetheroom
sensorfromanyoftheBeaconIIboards.
This also applies when connected to the optional Smart
Controller.
PROGRAM
REVIEW
SELECT
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