Program Mode - Viking VCSB5481 Series Technical Information

Program Mode
The Viking refrigeration control supports programmable options and EEPROM settings which are accessed via Pro
gram Mode. There are three modes; Mode A, Mode B, and Mode C. Several options/setting are accessible ineach
mode. The specifics of each mode are described below.
Accessing Program Mode A
Enable keypad by pressing and releasing "ACTIVATE CONTROLS" , press the FAST COOL key once,
and within five (5) seconds press HIGHER, LOWER, HIGHER and LOWER. The controller will switch to
Program Mode A. The 7-segment characters in the LED display will show "PrA" andan audio confirmation
will sound three times (300ms on, 300ms off).
Mode A Options (the following are accessed after mode A is entered)
Mode A
Parameter
DisplayRef
Temperature
Display Frz
Temperature
Change
defrost type
Adjust
Conventional
Defrost
CRTD
Adjust
Compressor
LowSpeed
Frequency
Display
software
version
Values
Read Only
Read Only
Adaptive or
Conventional
4 to 24 hours
in one hour
increments
set to 75 HZ
Read Only
Remarks and procedures
Press "REF TEMP" key once to display raw thermistor temperature with
the offset, no filtering applied. "REFRIGERATOR" illuminates along
with numerical value.
Press "FRZ TEMP" key once to display raw thermistor temperature
with the offset, no filtering applied. "FREEZER" illuminates along with
numerical value.
Press FAST COOL key once to show the current type. The LED display
will show "Add" for adaptive and "Cnd" for conventional.
Adjustment - Press FAST COOL key to toggle between adaptive and
conventional defrost types.
Press and hold ALARM OFF key for three (3) seconds. The display will
initially show "Cd".
Adjustment - Press HIGHER or LOWER keyonce to view and adjust
value.
Exit - Press ACTIVATE CONTROLS key once. The display will show
"PrA" to indicate control is still in Program Mode A.
Press DISPLAY OFF key once. The displaywill initiallyshow "CLF".
Adjustment - Press HIGHER or LOWER key once to view and adjust
value. Holding the HIGHER or LOWER key will adjust values in incre
ments of 5.
Exit - Press ACTIVATE CONTROLS keyonce. The display will show
"PrA" to indicate control is still in Program Mode A.
Press and holde DISPLAY OFF for three (3) seconds to show the soft
wareversion on the temperature display. Pressing HIGHER or LOWER
will cycle between a letter prefix and a two digit version as follows: "A" +
the major version, "b" + the minor version, "C" + the build number.