JULABO FP89-ME Ultra-Low Refrigerated Circulators - Manual (Page 18)

Preparations
18
5. Preparations
5.1. Installation
 Place the unit on an even surface on a base made of
nonflammable material.
 The place of installation should be large enough and provide
sufficient air ventilation to ensure the room does not warm up
excessively because of the heat the instrument rejects to the
environment. (Max. permissible ambient temperature: 40 °C).
For a fault (leakage) in the refrigeration system, the standard
EN 378 prescribes a certain room space to be available for
each kg of refrigerant.
The refrigerant quantity is specified on the type plate.
> For 0.52 kg of refrigerant R-404A, 1 m
3 of space is required.
> For 0.68 kg of refrigerant R-23, 1 m 3 of space is required.
> For 0.2 kg of refrigerant R-508b, 1 m
3
of space is required.
 Keep at least 20 cm of open space at the front and rear venting
grids.
 Do not install the unit in the immediate vicinity of heat sources
and do not expose it to sunlight
 Before operating the unit after transport, wait about one hour
after installation. This will allow any oil that has accumulated
laterally during transport to flow back down, thus ensuring that
the compressor can develop its maximum capacity.
5.2. Bath fluids
Caution:
Carefully read the safety data sheet of the bath fluid used, particularly with regard to
the fire point!
If a bath fluid with a fire point of
65 °C is used, only supervised operation is possible.
Water: The quality of water depends on local conditions.
 Due to the high concentration of lime, hard water is not suitable for temperature
control because it leads to calcification in the bath.
 Ferrous water can cause corrosion - even on stainless steel.
 Chloric water can cause pitting corrosion.
 Distilled and deionized water is unsuitable. Their special properties cause
corrosion in the bath, even in stainless steel.