Operating instructions

®
R i t t a l GmbH & Co. KG
Auf dem Stützelberg
D – 3 5 7 4 5 H e r b o r n
8. Maintenance
The cooling circuit which is a hermetically sealed system has been filled at works with the required volume of
refrigerant, tested for leak tightness, and subjected to a functional trial run.
Attention!
Prior to maintenance work the recooling unit must be switched voltage-free at the input end.
Important!
• For ensuring proper function of the recooling unit it is a must to take care that the laminae of the
air-cooled condenser are kept clean.
• Oil-containing ambient air in combination with dust will cause increased dirt deposition on the
condenser laminae. Here, the following should be observed:
Simply sweeping the outside with the fan running will not afford thorough cleaning. It is absolutely necessary to
use oil-solving agents, like cleaner's naphtha, or similar, for cleaning and we recommend using a spray gun for
penetrating into the depth of the condenser. When doing this, functional components, mounted in the lower part,
must be well covered in order to remove the flushed contamination and to prevent damage to surrounding
components. Cleaning should be done at regular intervals with the frequency depending on the degree of
contamination in the room where the system is put up.
ENGLISH
With cooling of / with water or similar media please pay attention always to:
• Solid matter residues (clean used filters regularly, if applicable)
• Algae and depositions
• Corrosion
may cause irreversible damage to the recooling unit. Such residues will always have the effect that the
performance of the recooling unit can suffer. The manufacturer's guarantee and liability become void in
cases of incorrect use and treatment of the recooling unit. In such cases we do not accept any liability
for damage.
FRIEDHELM L O H GROUP
9