Vestfrost R-138, User Manual

Page: 27 / 88

Vestfrost Solutions 27
EN
MAINTENANCE
TASK Description Quar-
terly
Annu-
ally
3
Years
As
ned-
dede
The compressor
compartment and the
condenser must be kept
free of dust and dirt.
1. Unplug unit from power supply.
2. Use a vacuum cleaner to remove
dust and dirt.
X
Refilling of mixture in
reference bottle, and
cleaning of bottle and
sensor
1. Remove the bottle.
2. Our recommendation: Fill it with
100ml with a mixture of water and alco-
hol (min 70%) in ratio 1:1
3. Place the bottle back in the refrigerator
and place the sensor in the liquid. Make
sure the whole sensor is covered in the
liquid.
X
Perform a temper- ature
calibration at least once
a year.
A certified technician must make the
calibration.
X
Defrost and clean the
chamber to prevent ice
building.
Automatic defrosting:
The refrigerator is defrosted automat-
ically. Defrost water runs through a
pipe and is collected in a tray above the
compressor where the heat generated by
the compres¬sor causes it to evaporate.
The defrost water tray should be cleaned
when needed or at least once a year
X
Replace the battery
backup for the controller
every 3 years.
Only a certified technician must replace
the battery.
X
Clean the interior and
exterior of the device.
1. Use warm water (max. 65°C) with a
little mild, perfume-free detergent with a
soft cloth.
2. Rinse with clean water and dry thor-
oughly.
Note: For disinfecting the device we
recommend the following base of disin-
fectant: alcohols and aldehydes. Chlorine
and peracids can also be used, but please
be aware that chlorine and peracids
based products can inflect on the surface
of materials, there for a careful washing
off with clear water and wiping off, after
disinfecting, is very important.
X
Frequency