Electric Connections - Pentair PRIOX 250/8 Manual

• Please use handlebar to remove or
lift pump up.
• Please use a non-return valve in
case pump is connected to fixed
installation with rigid piping; this will
avoid liquid circulating when pump
has been turned off; use of a pipe
fitting will allow easy disconnection of
pump for maintenance.
• Dimensions of drain well must allow
max. 30 on/off cycles/hour (See USE
REMARK
Make sure that float switch turns off pump, when at min. level of liquid.
REMARK
Make sure no obstacles stand in the way of float switch, during up/down swinging.
CHAPTER 4
ELECTRIC CONNECTION
REMARK
Ensure tension and frequency of pump (read motor plate) and supply network are same.
DANGER - ELECTRIC SHOCK RISK
Installer must make sure that electric current network has ground wire conforming to current laws.
DANGER - ELECTRIC SHOCK RISK
Make sure that electric current network is provided with a high-sensitivity circuit-breaker ∆=30 mA (DIN VDE
0100T739)
SINGLE PHASE VERSION
Single phase pumps are equipped with double ground contact plug at top end of supply cord; in this case grounding is done when
plugging in.
THREE PHASE VERSION
In this case the ground wire (yellow-green cable) of supply cord must be connected to ground wire of electric current network.
Ensure connection to electric current network by using an omnipolar-sectionned magneto thermic circuit-breaker.
This will ensure effective disconnection from electric current network.
OVERLOAD PROTECTION
PRIOX range pumps have a built-in thermal overload with automatic reset.
Further protections are not required.
PRIOX range three phase pumps can be protected by using a magneto-thermic motor protector or a contactor with thermal relay; in
both cases they have to be rated conforming to nominal power showed on motor plate.
Eventual electric float switch must be connected to auxiliary connector buckles.
AND HIS LIMITATIONS).
• Please use flexible pipe connected
to pump by means of plastic fitting in
case of temporary use of pump.
• Use a rope to immerse pump and
fasten it to pump's handlebar.
• PRIOX aut is equipped with a pre-
rated float switch (See Pict. 1); please
increase or decrease the free piece
of float switch cable by making it
sliding through the proper seat on the
handlebar, when modifying the rating
of float switch.
• Pumps used besides or inside
swimming pools, garden ponds or
similar places may have special
requirements.
GB
9