Fig.10: Stop valve - check valve assembly
1 Nut and stud
Stud PN 25 PN 63 (heat pump application)
DN 50 4x M16 100 Nm 4x M20 185 Nm
DN 65 8x M16 100 Nm 8x M20 185 Nm
DN 80 8x M16 100 Nm 8x M20 185 Nm
DN 100 8x M20 185 Nm 8x M24 300 Nm
DN 125 8x M24 300 Nm 8x M27 420 Nm
1.3.7 Connecting the power supply
Information about further electrical connections to be made (e.g. crankcase
heater, drive motor starting equipment, thermal protection of drive motor,
automatic start/ stop and other external electrical devices) can be found in the
plant manual (not supplied by Grasso).
1.3.8 Earthing connections
Grasso compressors and packages are equipped with litz-wires and earth
connecting points.
To avoid leakage current flowing through the components, disconnect all litz-
wires when arc-welding. After all installation functions are completed, reconnect
the litz-wires and ground the package to earth.
1.3.9 Separately delivered components
Hint!
Check whether the sets/parts/components belonging to this
compressor are supplied loose! (Refer to order confirmation)
Mount these separately delivered sets, components and/or parts, according to
the instructions as supplied with this compressor (package).
INSTALLATION AND PREPARATION FOR USE
INSTALLATION
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