vwr.com I Instruction manual VWR
®
ULT Freezer 352/528 Eco Premium 02/2022
Page 30/86
4.5 Location of installation and ambient conditions
The freezer is designed for setting up inside a building (indoor use). Set up the chamber on a flat, even
surface, free from vibration and in a well-ventilated, dry location. Lock the front castors and align the cham-
ber using a spirit level. The site of installation must be capable of supporting the chamber’s weight (see
technical data, chap. 26.3).
NOTICE
Danger of overheating due to lack of ventilation.
Damage to the chamber.
∅
Do NOT install the chamber in unventilated recesses.
Ensure sufficient ventilation for dispersal of the heat.
Make sure that all ventilation openings are uncovered.
Observe the prescribed minimum distances when installing the chamber.
NOTICE
Danger to the environment by leakage of refrigerant in the event of a chamber de-
fect.
Alteration of the environment.
Ensure sufficient ventilation of the installation site.
•
Permissible ambient temperature range for operation: +18 °C /
64.4 °F
to +32 °C /
89.6 °F
. At elevated
ambient temperature values, fluctuations in temperature can occur.
The ambient temperature should not be substantially higher than the indicated ambient
temperature of +22 +/- 3 °C /
71.6 °F +/- 5.4 °F
to which the specified technical data re-
late. For other ambient conditions, deviations from the indicated data are possible.
Prevent the freezer from sucking warm air from other devices.
Avoid direct solar radiation on the chamber. Do not place the freezer in direct vicinity of
chambers with a high heat emission.
•
Permissible ambient humidity: 70% r.h. max., non-condensing.
•
Installation height: max. 2000 m /
6561.7 ft
above sea level.
Minimum distances:
•
between several chambers: 250 mm / 9.84 in
•
Wall distance, rear: 100 mm / 3.94 in (spacer is supplied, see chap. 5.2)
•
Wall distance, laterally, on the side without door hinge: 100 mm / 3.94 in
•
Wall distance, laterally, on the side with door hinge: 240 mm / 9.45 in.
•
Spacing above the chamber: 100 mm /
3.94 in
Ventilation openings must not be blocked. Ensure a distance of at least 100 mm /
3.94 in
to the ventilation
openings on the freezer’s front and rear.
To completely separate the chamber from the power supply, you must disconnect the power
plug. Install the chamber in a way that the power plug is easily accessible and can be easily
pulled in case of danger.
With an increased amount of dust in the ambient air, clean the condenser fan (by suction or blowing) several
times a year. Check the condenser air filter frequently and clean it if necessary (chap. 23.3.1).