JULABO FPW91-SL Ultra-Low Refrigerated Circulators - Manual (Page 26)

Preparations
26
5. Preparations
5.1. Installation
Top view:
HST HSP
19a
19b
Special unit
SL Circulator
Bath opening 28x23
• Place the unit on an even surface on a pad made of non-flammable
material. Using the castors move the unit to the intended location.
For better stability, apply the holding breaks on the front casters.
Upgradable with supplementary pump - HSP see page 102
Upgradable with supplementary heater - HST see page 100
• 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. (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 0.48 kg of refrigerant R404A, 1 m
3 of space is required.
> For 0.68 kg of refrigerant R23, 1 m 3 of space is required.
• 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.
G 3/4"
Only for water-cooled models:
Ensure circulation of cooling water by connecting the tubing to the cooling
water inlet and outlet at the rear of the refrigerated circulator.
Cooling water connections: G 3/4"
Important : For cooling water, see page 18