Controller Operation - Vector VREF12-LB-RGD Operation And Service Manual

Controller Operation

In normal operation, the controller will display temperature in degrees Celsius. To change from Celsius to
Fahrenheit requires a programming key. Contact Vector Products Parts Department at 1-855-686-5592 for
part numbers and pricing.
CAUTION! Vector Lab Products does not authorize changing any critical operating parameters
as it can cause improper system operation and/or severe mechanical damage.Changing
operating parameters may result in Vector Lab Products voiding equipment warranty.
Refrigerators come pre-programmed with a 4 C (39 .2 F) set point . Standard operating temperature at default is
4 C to 6 C (39 .2 F to 42 .8 F)
If desired, the refrigerator's set point can be adjusted within a 1 C to 12 C (33 .8 F to 53 .6F) range .
Freezers are pre-programmed with a –25 C (–13 F) set point . If desired, the freezer's set point can be adjusted
within a –23 C to –10 C (-13 F to 14 F) range
All set points have a +2 C (+3 .6 F) differential (r0 setting on the controller) . The 2 .2 C (3 .6 F) differential means that
with a 4 C (39 .2 F) set point, the compressor will turn off at 4 C (39 .2 F) and turn on when it reaches 6 C (42 .8 F) .
It is important to understand that the set point equals the compressor cut out .
Vector Lab Products Refrigerators and Freezers 7