3.696.5275.210
37
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The combination of electricity, steam, and water can pose a very dangerous
situation. Turn off / disconnect all electric power before attempting any maintenance
procedure.
1. Follow the shutdown procedure to take the unit off-line before attempting to replace
the safety pressure switch.
2. Ensure that the primary supply, condensate / water return line, feed water inlet, and
clean steam outlet have been shut off; that the pressure has been bled from both the
clean steam and primary supply systems; that the vessel has been completely drained;
and that all components and surfaces have cooled.
3. Carefully Disconnect the wires leading from/to the control cabinet.
4. Loosening the connections until the pressure probe can be removed.
5. Examine the probes for damage or incorrect positioning. For the exact procedure for
examination refer to the Spirax Sarco manual information included with the unit.
6. To install a new unit follow recommendations contained in the manufacturer’s
documentation.
7. After ensuring that the unit is correctly installed, tighten the fittings and sanitary
connections. Any gasket used must be of sanitary type.
8. Follow the start-up procedures (page 21) to put the unit back on-line. Carefully check
all connections for any sign of leakage.
Fig. 21
Pressure
switch
Summary of Contents for CSM-C
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