en – Original Instructions
Installation, Operation and Maintenance Manual
25
Figure 11
4.3.3
Rotation of the pump motor
WARNING: Danger, system pressurized
Before starting work, close the shut-off valves on the suction and discharge sides or drain the
system.
CAUTION:
During the loosening of the screw ring from the pump housing, it is possible the leakage of
residual very hot or cold liquid: pay attention to the risk of damages to persons.
CAUTION:
Be careful not to damage the internal seal: risk of leakage of very hot or cold liquid during the
operation of the unit.
CAUTION:
The use of PTFE impregnated pipe compound and PTFE tape on pipe threads provides lubricity
which can lead to overtightening and breakage. Do not overtighten. Failure to follow this
instruction can result in moderate personal injury from hot water and/or property damage.
When installing pumps with a control knob and/or a timer in a vertical position, the pump motor
may be turned in 360° stepless, so that the knob and/or the timer may be positioned in a well
visible orientation (see Figure 12 on page 26).
