JULABO FLW4006 Recirculating Coolers - Manual (Page 17)

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5. Installation
 Place the unit on an even surface on a base made of nonflammable
material. Using the castors (10a, 10b) move the unit to the intended
location.
For better stability, apply the holding breaks on the front casters (10a).
 Cooling machine, pump motor and electronics produce intrinsic heat that is
dissipated via the venting openings.! Never cover these openings!
 Keep at least 20 cm of open space on the front and rear venting grids.
 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.
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.
> For 0.52 kg of refrigerant R-404A, 1 m3 of space is required.
Rear view Example: FL2503  Connect the tubings for cooling the external system to
the pump connectors M16x1 for feed and return (14)
on the rear of the recirculating cooler.
– Return - Feed
 Connect a piece of tubing to the overflow connector
(15) and drain into a suitable vessel, which always has
to be placed lower thant the exit „Overflow“.
 Turn the adjusting valve (13) counter-clockwise to set
the lowest manometric pressure.
 Do not set up the unit in the immediate vicinity of heat
sources and do not expose to sun light.
 Before operating the unit after transport, wait about
one hour after setting it up. This will allow any oil that
has accumulated laterally during transport to flow back
down thus ensuring maximum cooling performance of
the compressor.
IN
OUT
12 mm inner dia.
Example:
PVC-tubing
 Only water cooled models - FLW:
Ensure circulation of cooling water by connecting the
tubing to cooling water inlet (IN)and outlet (OUT) on
the rear (18) of the recirculating cooler.
Cooling water see page 14.
Cooling water connectors G3/4" external thread
Tubing 12 mm inner dia. tubing
IN Cooling water inlet
OUT Cooling water outlet
IN OUT
min