Forced Pull-Down (Forced Compressor Start); Forced Defrost; Showroom Mode - Viking VCRB5301 Service Manual

Operation
Forced Pull-Down (Forced compressor
start)
To enter Forced pull-down, first
press and release "ACTIVATE
CONTROLS", then press and hold
"LOWER" pad, then press and hold
"DISPLAY OFF" pad also until you
get an audible consisting of three
beeps.
This causes the control to
immediately energize the
appropriate outputs in an effort to reach both
of the cut-out temperatures (refrigerator and
freezer).
This function will ignore compressor dwell
time and cause immediate compressor start
up in the high speed mode (115HZ).
Forced pull-down will terminate after both
cut-out temperatures are met, or if a defrost
or forced defrost is initiated, or if an extended
power loss occurs.

Forced Defrost

To enter Forced defrost, first
press and release "ACTIVATE
CONTROLS", then press and hold
"HIGHER" pad, then press and hold
"DISPLAY OFF" pad until you get an
audible consisting of three beeps.
This causes the control to
immediately suspend all
temperature control operations
and start a defrost cycle, regardless of
compressor dwell time and defrost start delay.
If defrost terminator temperature is satisfied
defrost heaters will come on at this time for a
normal defrost cycle.
8
Forced defrost will terminate when defrost
terminator opens (completion of cycle
defrost) or if forced pull-down is initiated or if
there is a long power loss..
ACTIVATE
CONTROLS
LOWER
DISPLAY
OFF
When forced defrost is initiated the
temperature numbers are replaced with
"dEF" in the seven segment displays, as
shown above. When defrost is complete the
displayed "dEF" will again be replaced with
displayed temperature numerals.

Showroom Mode

To enter Showroom mode:
Press and hold the "ACTIVATE
CONTROLS" pad. While
holding, press and hold the
"HIGHER" and "ALARM OFF"
pad simultaneously. Continue
holding until three beeps
are heard and then "SHOW"
is illuminated along with
Refrigerator and 38
ACTIVATE
CONTROLS 0 F. Whichever section was active prior
O
to to showroom mode being entered will
determine which one is displayed.
HIGHER
DISPLAY
OFF
To exit Showroom mode: Press and hold the
"ACTIVATE CONTROLS" pad. While holding,
press and hold the "HIGHER" and "ALARM
OFF" pad simultaneously. Continue holding
until three beeps are heard. The display will
revert to normal operation
ACTIVATE
CONTROLS
HIGHER
ALARM
OFF
F or Freezer and
O
©2012 Viking Preferred Service