Spirax Sarco CSM-C, Инструкция по установке и обслуживанию

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38
Steam Pressure transmitter - Replacement
(Fig. 22)
∆
Clean steam and primary supply steam or superheated water present situations
that can be very dangerous because of the high temperatures and pressures. To
avoid possible injury or death and follow all accepted and recommended procedures
when performing installation, operation, and maintenance procedures.
∆
The combination of electricity, steam, and water can pose a very dangerous
situation. Turn off / disconnect all electric power before attempting any maintenance
procedures.
The steam pressure transmitter installed on the Spirax Sarco Compact Steam Generators
supply the clean steam pressure to be used to control the primary steam valve position.
If the pressure transmitter mounted on the tank is not functioning correctly and must be
replaced, follow the procedures outlined below.
∆
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 steam pressure transmitter.
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 transmitter can be removed. Examine the probes
for damage or incorrect positioning. For the exact procedure forexamination refer to
the Spirax Sarco manual information included with the unit.
5. To install a new unit follow recommendations contained in the manufacturer’s
documentation.
6. After ensuring that the unit is correctly installed, tighten the fittings and sanitary
connections. Any gasket used must be of sanitary type.
7. Follow the start-up procedures (page 21) to put the unit back on-line. Carefully check
all connections for any sign of leakage.
Fig. 22
Pressure
transmitter
(clean steam)