CPA AMBRA Manuel - Sayfa 5

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MANTEINANCE MANUAL

recommends anchoring them to third-party structures using suitable supports. (fig. D) The

connection pipes must not have a diameter smaller than that of the pump outlets and must be

installed perpendicularly and well centered with respect to the pump connection, to prevent the

pump and the pipe from being subjected to improper stress. In case of direct suction via basin

piping, check that the suction piping is perfectly hermetic and completely immersed, at least for

half a meter, in order to avoid the formation of vortices. The use of foot valves with strainer at the

head of the suction pipe is recommended. The diameter of the delivery pipe must be sized in order

to comply with the design flow rate and pressure at the outlet point. The suction pipe must be

installed with a slight inclination of 2% towards the pump, in order to avoid the formation of air

pockets. It is recommended to use a non-return valve between the delivery port and the flow

control valve in order to avoid dangerous water hammer in the event of a sudden stop of the

pump. This recommendation becomes mandatory in the event that the water delivery column is

longer than twenty meters. (fig. E)

ELECTRICAL WIRING

The electrical installation must be performed by a qualified professional in compliance with the

technical and safety regulations in force. It is recommended to use an H07 RN-F type

connection cable with a section suitable for the electric consumption of the pump motor and

the number of conductors required for the number of motor phases, plus the grounding cable.

The single-phase motors are equipped with thermo-amperometric protection: they are

connected directly to the power supply network. The three-phase motors must be protected

with an automatic switch (eg. Magnetothermic) calibrated to the plate data of the electric

pump. Install a high sensitivity differential switch (0.03A) as additional protection.

Observe the connection diagram below:

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fig. D

WARNING

4 m

fig. E

AMBRA

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Ver01– 2021-06-18