Pentair NOCCHI MULTI EVO Instructions De Service page 19

device, and a residual current device
RCD with high sensitivity
tected by means of a slow­acting fuse
or a magnetothermic switch.
• The electric power line must be fitted
with an external main switch with a
contact opening gap compliant with
current local standards.
Single phase motors
The single phase motors are protected
against temperature and current overload
by means of thermal cutout devices in the
winding. The motor protection is reset au­
tomatically on elapse of the time required
for the electric motor to cool down. See
"quick troubleshooting guide".
Three phase motors
In the case of three phase motors, the
user is responsible for installing protec­
tion.
The electrical protection must be suitably
sized to ensure protection against over­
loads and short circuits.
Electrical connection
Electrical connections should be made
according to the diagram provided on the
inside of the terminal board cover (see
Figure 4)
OPERATION
Pump priming
The pump must only be started
up after it is filled with liquid.
If the pump has not been used
for a prolonged period, the filling
operation should be repeated before star­
(30mA), pro­ ting up.
Pump installation below the liquid lev-
el (negative suction head) Figure 1
1. Close the shutoff valve downline of the
2. Open the shutoff valve upline of the
3. Loosen the filler cap to enable release
4. Tighten the filler cap fully down.
5. Start up the pump and slowly open the
charge valve must be opened as soon as
the pump has been started up, to prevent
damage to the latter by an excessive in­
crease in liquid temperature.
Installation of non-priming pumps
above the liquid level (positive suction
head) Figure 2
1. Close the shutoff valve downline of the
2. Open the shutoff valve upline of the
3. Remove the filler cap.
4. Using a funnel, fill the pump body and
5. Tighten the filler cap fully down.
6. Start up the pump and slowly open the
pump (delivery side).
pump (suction side).
of the air, the filling of the pump body
and suction line completely with liquid,
until it overflows from the hole.
shutoff valve downline (delivery side) to
ensure bleeding of any residual air in
the pump body and accumulated pres­
sure during start­up.
The pump must never be operat­
ed with the shutoff valve on the
delivery side closed. The dis­
pump (delivery side).
pump (suction side).
suction pipe completely with liquid,
until it overflows from the hole.
delivery shutoff valve to ensure bleed­
ing of any residual air in the pump body
ENGLISH
19 19