JULABO FCW1600_1600S Recirculating coolers - Manual (Page 18)

Operation
18
Notice: Cooling water circuit
Risk of oil leaking from the cooling circuit (compressor) of the recirculating
cooler into the cooling water in case of a fault in the circuit!
Observe the laws and regulations of the water distribution company valid in
the location where the unit is operated.
5.2. Return flow safety device
Notice: Flood hazard!.
In case the system to be cooled is located at a higher level than the
recirculating cooler, take note of bath liquid flowing back when the unit is
switched off.
Return flow safety device
Should the filling volume of the bath tank not be sufficient, prevent the liquid
from flowing back by using shut-off valves..
In case the system to be cooled is located at a higher level
than the recirculating cooler, prevent the bath liquid from
flowing back when the unit is turned off.
For this purpose, connect electrical solenoid valves or
mechanical shut-off valves to the connectors for feed and
return (12.1. and 12.2.).
The solenoid valve is electrically connected to the
connectors (14.). As soon as the recirculating cooler is
switched off, the valves close automatically. (Filling - see
page 20)
Order No. 8 980 701 Set of solenoid valve (230 V)
13
.
12.
1 12.
2
14
.