JULABO Magnum 91 Temperature System - Manual (Page 22)

Preparations
22
5. Preparations
5.1. Installation
 Place the unit on an even surface on a pad made of non-flammable
material. Using the castors (7a, 7b) move the unit to the intended
location. For better stability, apply the holding breaks on the front
casters (7a).
 Keep at least 20 cm of open space on the front and rear venting grid.
 Do not set up the unit in the immediate vicinity of heat sources and do
not expose to sun light
 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 radiates to the environment. (Max. permissible
ambient temperature: 35 °C).
With regard to a disturbance in the cooling loop (leakage), the guideline
EN 378 prescribes a certain room space to be available for each kg of
refrigerant.
The necessary amount of refrigerant is specified on the type plate.
> For 0.52 kg of refrigerant R404A, a room space of 1 m
3 is required.
> For 0.68 kg of refrigerant R23, a room space of 1 m 3 is required.
 Only set up the unit in a room where enough fresh air is exchanged.
 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.
5.2. Cooling water connection
Notice: Cooling water circuit
If the heat exchanger is defective, small volumes of oil may leak into the cooling water.
Therefore never connect the unit to the public water supply!
Observe the laws and regulations of the water distribution company valid in the location
where the unit is operated.
IN OUT
 Supply cooling water via the inlet (IN).
Conduct the cooling water via the outlet (OUT) in the respective sink or
return flow circuit.
Cooling water connectors (13, 14) G3/4" external thread
Cooling water see page 13