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Installation Instructions
Electrical Installation
The electrical installation must be carried out by a qualified professional and must comply with the legislation and
local laws. In Brazil, the Technical Standard ABNT NBR 5410 - Low voltage electrical installations, establishes in
detail the criteria that must be followed for installation, protecting the installation, equipment, people, and animals.
A well dimensioned design ensures perfect operation of the pump, protects the equipment, and increases its useful
life.
The recirculation motor pumps must be powered by an exclusive circuit, independent of other circuits. The motors
must be installed inside an engine room and with sufficient cross ventilation.
The motor's power cables must be dimensioned accordingly by a qualified professional.
PRIOT TO POWERING THE MOTOR PUMP ON, MAKE SURE THE VOLTAGE IS ADECUATE TO OPERATE THE
EQUIPMENT.
CHECK THE ENGINE'S PLATE FOR THE CORRECT CONNECTION OF THE TERMINALS AND FOR THE CORRECT
VOLTAGES ACCORDING TO EACH ENGINE / MOTOR PUMP.
It is mandatory to install devices that offer security to the installation, equipment, people and animals, such as:
contactors, overload relays, DPS (Surge protection devices), Phase-out relays, IDR / DR (Residual Differential
Switch / Residual Differential) and other necessary protections in accordance with ABNT NBR 5410 - Low voltage
electrical installations, both for single-phase and three-phase motors.
The lack of electrical protection devices in the equipment will cause the loss of the WARRANTY.
The warranty does not cover damage from voltage peaks, problems with the supply and natural phenomena. All
engine data is printed on the nameplate placed on the engine body.
For the installation of three-phase motors, a Phase Rotation Indicator must be used to avoid the wrong connection
and the motor to rotate in the opposite direction.
If the pump is turned on incorrectly and rotates in the opposite direction, the WARRANTY will be lost.
All motors have a counterclockwise direction of rotation by default (when viewed from the front of the shaft).
However, when viewed from the rear of the engine, the shaft must rotate clockwise.
Grounding: GROUNDING IS MANDATORY
For complete safety of the electrical installation, make sure that the motor is perfectly grounded, according to
local regulations. In Brazil we have as reference the ABNT NBR 5410. Use the existing terminal on the motor for
grounding, connecting it to a wire of suitable diameter according to the project and this to an appropriate iron /
copper rod.
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Installation and User's Guide
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