27
INStAllAtION
A
Opening
B
Closing
1
Service connection blanking plug
2
On-off valve shaft
3
Refrigerating pipe attachment
4
On-off valve cover plug
5
Hex wrench
1
2
3
4
5
A
B
—
fully open the unit shut-off valves
—
refit the valve covering plug
9
Carefully check for absence of leakages from the closing
point of the plug.
9
Do not force beyond the stop point to prevent damaging the
shaft and causing leakage as a consequence.
9
Once the check has been completed, remove any residues of
the water-soap solution.
9
Do not use the same vacuum pump with different refrige-
rants.
9
The vacuum pump requires regular maintenance and the
oil’s clarity must also be checked.
9
After having created the vacuum and established the electric
connections, proceed with the additional refrigerant charge
(see chapter "Additional refrigerant charge"
p. 35).
9
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