Datacolor CONDITIONER™ (MB2) 06/2017
page 109/126
18. Defrosting at refrigerating operation (cabinet without lights)
The cabinets are very diffusion-proof. To ensure high temperature precision there is no automatic cyclic
defrosting device. The DCT™ refrigerating system largely avoids icing of the evaporation plates. Howev-
er, at very low temperatures the moisture in the air can condense on the evaporator plates leading to
icing.
Always close the door properly.
Operation with temperature set-points > +5 °C / 41 °F at an ambient temperature of 25 °C / 77 °F:
The air defrosts the ice cover automatically. Defrosting is continually performed.
Operation with temperature set-points < +5 °C / 41 °F:
Icing on the evaporator is possible. Defrost the cabinet manually.
With temperature set-points < +5 °C /
41 °F
, regularly defrost the cabinet manually:
•
Set the humidity to 0 % r.H. The humidity system must be activated.
•
Set the temperature to 40 °C /
104 °F
(Manual Mode).
•
Let the cabinet operate for about 30 minutes with the door closed.
Too much ice on the evaporator is noticeable by reduced refrigerating performance.
When turning off the cabinet following prolonged refrigerating operation below +5 °C /
41 °F
, there is
danger of overflowing due to uncontrolled defrosting of icing on the evaporator.
CAUTION
Uncontrolled defrosting of icing on the evaporator.
Danger of overflowing.
After several days of refrigerating operation below +5 °C /
41 °F
:
∅
Do NOT directly turn off the cabinet.
Manually defrost the cabinet (see description above).
Then, shut down the cabinet at the main power switch (1) and close the tap of the wa-
ter supply. Keep removed the access port plugs.
