Recirculating coolers
19
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 21)
Order No. 8 980 701 Set of solenoid valve (230 V)
13.
12.
1
12.
2
14.
