12
1.8 Pumps
The thermal modulesPOWER MAX 50 P DEP, POWER MAX 50 P,
POWER MAX 65 P and POWER MAX 80 P are tted with a circulator.
Residual head (mbar)
0
100
200
300
400
500
600
700
800
900
0 1,5 2 2,5 3 3,510,5 4
POWER MAX 65 P
POWER MAX 80 P
POWER MAX 50 P DEP
POWER MAX 50 P
Flow-rate (m
3
/h)
b
At the rst start-up, and at least once a year, the rotation of
the circulator shaft should be checked as, especially after long
periods of not being operated, deposits and/or residuals could
impede its free rotation.
b
Before loosening or removing the circulator cap, protect the
electric devices located underneath from any water that exits.
a
It is prohibited to operate the circulators without water.
Thermal modules POWER MAX 100, POWER MAX 110, POWER MAX
130 and POWER MAX 150 are not equipped with a circulator, which
must be inside or outside the appliance (see accessories).
For its sizing, consider the thermal module's water-side pressure
drops, which are shown in the chart below.
Water-side pressure drop
Pressure drop (mbar)
0
100
200
300
400
500
600
700
800
900
POWER MAX 110
POWER MAX 100
POWER MAX 130
POWER MAX 150
Flow-rate (m
3
/h)