Electrical Wiring - Wilo IPL Notice De Montage Et De Mise En Service

English
The motor stool is equipped with a plugged tapping for a possible drain
connection for condensation.
Any mounting position except „motor downwards" is allowed.
Mounting positions see Fig. 3
The motor terminal box must not face downwards. If necessary, the motor or
the motor impeller unit can be turned after removing the screws.
CAUTION!
• When turning, take care not to damage the housing o-ring.
• When lifting water from tank make sure that the level of liquid is always
above the pump suction port to avoid dry-running of the pump.The mini-
mum inlet pressure must be maintained.
• For units which are be insulated, only the pump housing may be insulated,
not the lantern and the motor.

7.2 Electrical wiring

WARNING!
Dangers caused by electrical energy must be excluded.
• Electrical work by a qualified electrician only!
• Motor and control wiring, overload protection, disconnects, accessories and
grounding must conform to the National Electrical Code and local codes and
practises.
• All electrical connections must be performed after the electrical supply has
been switched off and secured against unauthorized switching.
• For safe installation and operation a proper grounding of the pump to the
power supply's grounding terminals is required.
WARNING!
If there is a risk of freezing the motor must have properly sized heaters to
provide overload and under voltage protection.
Protect the motor with a motor-protection or thermal relays..
Special motors can be supplied with PTC thermal sensor, which must be con-
nected to the PTC trip relay.
The position of the cable entrance in electrical connection box of the motor or
the cableposition has to protect the electrical connection box against external
water contamination.
Heat-resistant power cable must be used for pumps in systems with water tem-
peratures above 90 °C (194 °F).
The power cable must be routed in such a way to avoid any contact with pipe-
work and/or pump/motor housings.
• Check available mains power supply and voltage.
• Observe motor name plate data.
Mains power supply fuses: depending on motor full-load current.
The pump/installation must be grounded in compliance with the applicable
regulations.
10
Product may get damaged!
Electrical shock hazard!
Electrical overload hazard!
Wilo AG 06/2005