4.15.4. Replacing the overpressure valve for steam circuit (pressure relief valve No. 1)
4.15.5. Mode of operation
The overpressure valve diverts the residual steam to the expansion container after steam
is dispensed.
The valve is briefly activated each time after steam is dispensed.
If the valve has an electrical defect, it will open if the pressure exceeds 6 bar (87 PSI).
Removing the valve
• CAUTION! Make a note of the installation
direction!
Unscrew the 2 screws and remove black
plastic cover
Unscrew screw and remove base holder
Detach hoses
Disconnect all cable connectors
Unscrew screws under the valve socket
4.15.6. Technical data
Pressure relief valve No. 1: 24 V DC
Medium: Steam
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