FUST Novamatic EK 69.7-IB, Руководство по эксплуатации

Страница: 35 / 40

35
Operating Noises
Noises which are entirely normal
The chill cabinet is cooled by a compressor
(refrigeration aggregate). The compressor
pumps coolant through the cooling system,
producing operating noises. Even when the
compressor cuts out, noises caused by chan-
ges in temperature and pressure are unavoi-
dable.
This cooler is fitted with a quiet compres-
sor and a low-noise cooling circuit desi-
gned in line with the latest technical deve-
lopments.
However, a certain level of noise, depen-
dent on the size of the cooler, is inevitable.
Operating noise will be most audible
immediately after the compressor cuts in. It
becomes quieter as the operating period
continues.
Noises which are not normal
Unusual noise is normally the result of
improper installation. The cooler must be
installed or built-in so that it is level and sta-
ble. Under no circumstances must tubing
come into contact with a wall, other furni-
ture or with another tubing.
Where coolers are installed in open-plan
kitchens or in partition walls, the level of
operating noise will be heard more acutely.
However, this is due to the surrounding
architecture and not to a fault with the
cooler.
Description Cause Comment
Droning Cooling aggregate Normal operating noise of the cooling aggregate.
The level is dependent on the size of cooler.
Humming Fan Normal operating noise of the fan.
Gurgling Cooling circuit Normal operating noise as coolant flows through
Babbling the circuit.
Murmuring
Hissing Cooling circuit Normal operating noise as coolant is injected into
the condenser.
Rattle Shelves, contents Arrange the shelves and contents so that they are fixed
and not touching one another.
Cracking Cooler housing Normal as materials expand and contract caused by
temperature variations (e.g. plastics, insulation).