11
Return flow safety device
If the liquid levels in the circulator bath and the external system are
at different heights, overflowing must be prevented after the power
has been turned off.
Flood hazard!
For this reason, solenoid valves for loop circuit or shut-off valves
can be integrated in the loop circuit.
Connect the valve (230 V / 115 V) to the connector (26).
Order No. Description
8 980 701 Solenoid valve for loop circuit up to +100 °C
8 970 456 Shut-off valve (suitable up to +90 °C)
8 970 457 Shut-off valve (suitable up to +250 °C)
Fasten tubing to prevent slipping.
Supplementary pump
Both connectors (26) may be used for operating supplementary
pumps.
Control (switching on/off) is effected by presssing the start/stop
key or via the digital interface with the start/stop command.
Check to make sure that the line voltage matches the supply voltage specified
on the identification plate (230 V or 115 V).
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