Owner's manual
ALPHA 1-4 LSC&
ALPHA 2-4 LSC&
7 Malfunctions and error correction
74
Version 01/2011, Rev. 1.5 of 16/12/2013 • sb
Translation of the original operating manual
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7.1.2 Insufficient vacuum
NOTE
The vacuum checks must be carried out when the ice condenser is frozen.
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7.1.2.1 Small flange connections
Leakages are often due to improper small flange connections between the
various components and hose connections or to leakages in the valves.
• Loosen the connection and place the centring ring (with sealing ring
inside) in a centred manner between the flange connections.
• Seal the connection with the clamping ring by tightening the wing nut.
• Ensure that the centring ring neither slips out of place nor gets jammed.
Fig. 65: Small flange and centring ring Fig. 66: Small flange with centring ring
and small flange
Fig. 67: Attaching the clamping ring Fig. 68: Tightened clamping ring
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