Beacon ii controller – Heatcraft Refrigeration Products II User Manual
Page 19
19
Beacon II Controller
Programming And Reviewing Settings/Changes (continued)
•
Alarm High Temperature –
“ALH”
– Temperature at which a high box temperature alarm will be triggered.
This does not apply during defrost.
Default: Electric defrost is +5
°
F and air defrost is +50
°
F.
•
Alarm Low Temperature –
“ALL”
– Temperature at which a low box temperature alarm will be triggered.\
Default: Electric defrost is -15
°
F and air defrost is +30
°
F.
•
Alarm Time –
“ALt”
– Time which high temperature or low temperature conditions must exceed before
alarm is triggered.
Default: 60 minutes.
•
°F/°C –
“F-C”
– Select units to display temperature. Fahrenheit or Celsius.
Default: Fahrenheit.
•
When °C is selected a red dot will appear in the right bottom corner of the LED display of the Beacon II
board.
Use the “MONITOR”
button to review these items:
SUP
– Superheat (°F)
ESP
– Expansion Valve Stems (0 to 255 steps)
SCt
– Suction Temperature (°F)
SSt
– Saturated Suction Temperature (°F)
SCP
– Suction Pressure at Evaporator (PSIG / “HG)
Odt
– Outdoor Temperature (°F)
dFt
– Defrost Sensor Temperature (°F)
dFE
– Last Defrost Elapsed Time (minutes)
AC
– Board Voltage
SPt
– Spare Temperature Reading
Use this button to
“FORCE DEFROST”
To force a defrost, press the
“FORCE DEFROST”
button. The system will
pumpdown and shut off the compressor. The heaters are then turned on.
The display will show
“dEF”
.
Use this button to
“RESET TIME”
Pressing this button will reset the time clock in the microprocessor to zero. At initial
power up, pressing this button will bypass the “four minute” hold-off and the system will
start immediately after the expansion valve opens. This display will show
“dLy”
.
Use this button to
“FORCE SERVICE”
Pressing this button TWICE will cause the system to pumpdown and the
compressor to shut off. The system will remain off until the “CLEAR” button is
pressed. While in the “FORCE SERVICE”, the LED display will show
“SEr”
.
MONITOR
FORCE
DEFROST
RESET
TIME
FORCE
SERVICE