809
Thermo AC/DC
8 Repairs
8.11 Bleeding of the coolant circuit
NOTE:
The coolant circuit must be principally bleeded according
to the manufacturer specification.
Risk of injuries if coolant temperature is increased.
The vent screw (7,
) can be used as an
additional venting possibility.
Procedure
1. Pre-fill the heat exchanger and the water hoses fully
with coolant.
2. Lightly loosen the vent screw.
3. Turn the circulating pump on.
4. As soon as no air escapes, close the vent screw and
tighten (for torque value see
ATTENTION:
Existing air bubbles could lead to the destruction of
the heating cartridges!
The correct degree of bleeding results in an almost silently
operating circulation pump. An inadequate bleeding can
lead during heating operation to the switching-off of the
heater due to overheating.
Risk of scalds!
Caution!
Summary of Contents for Thermo AC 070
Page 47: ...memos...
