Moving Parts; Noise Level; Hot And Cold Parts; Installation - DAB KDN 32-125.1 Instrucciones Para La Instalación Y El Mantenimiento

6.3. Protections
6.3.1.

Moving parts

In accordance with accident-prevention regulations, all moving parts (fans, couplings, etc.) must be accurately protected with
special devices (fan covers, coupling covers) before operating the pump.
During pump operation, keep well away from the moving parts (shaft, fan, etc.) unless it is absolutely necessary,
and only then wearing suitable clothing as required by law, to avoid being caught.
6.3.2.

Noise level

The noise levels of pumps with standard supply motors are indicated in table 6.6.2 on page 119. Remember that, in cases where
the LpA noise levels exceed 85 dB(A), suitable HEARING PROTECTION must be used in the place of installation, as required
by the regulations in force.
6.3.3.

Hot and cold parts

As well as being at high temperature and high pressure, the fluid in the system may also be in the form of
steam! DANGER OF BURNING ! ! !
It may be dangerous even to touch the pump or parts of the system.
If the hot or cold parts are a source of danger, they must be accurately protected to avoid contact with them.
6.3.4. Any leaks of dangerous or harmful liquids (for example, from the shaft seal) must be conveyed and disposed of in accordance
with the regulations in force so as not to cause a risk or damage to persons and to the environment.
7.

INSTALLATION

The electropump must be fitted in a well ventilated place, with an environment temperature not exceeding 40°C. As they have
degree of protection IP55, the electropumps may be installed in dusty and damp environments. If installed in the open, generally
it is not necessary to take any particular steps to protect them against unfavourable weather conditions.
If the unit is installed in a location where there is a risk of explosion, the local regulations on "Ex" protection must be respected,
using only suitable motors.
7.1. Foundation
The buyer is fully responsible for preparing the foundation which must be made in conformity with the dimensions shown on page
123-124. Metal foundations must be painted to avoid corrosion; they must be level and sufficiently rigid to withstand any stress.
Their dimensions must be calculated to avoid the occurrence of vibrations due to resonance.
With concrete foundations, care must be taken to ensure that the concrete has set firmly and is completely dry before placing
the unit on it. The surface that it sits on must be perfectly flat and horizontal. After the pump has been positioned on the
foundation, check with a spirit level to ensure that it is sitting perfectly level. If not, suitable shims must be inserted between the
base and the foundation in the immediate vicinity of the anchoring bolts. For bases on which the distance between the anchoring
bolts is >800 mm, shims must also be inserted in the centre point to avoid bending. A firm anchoring of the feet of the pump/motor
assembly on the base helps absorb any vibrations created by pump operation. All the anchoring bolts must be tightened fully
and uniformly.
7.2. Pump/motor alignment
After having proceeded as described in the previous paragraph, to guarantee correct and lasting operation of the unit,
you must scrupulously check the alignment of the motor shaft and the pump shaft, even in the case of electropumps
already assembled on the base and complete with motor.
The unit is correctly aligned when a ruler placed axially across the two semi-couplings (fig. 7.2.1) measures a constant
distance (+/-0.1mm) between the ruler and the shaft (motor-h1 or pump-h2) on the whole circumference of the semi-
couplings. You must also check, with a caliper or a thickness gauge, that the distance between the semi-coupling and
the spacer coupling is constant (+/-0.1mm) on the whole circumference (s1 = s2).
If correction is necessary due to radial or angular shifting, align by fitting/remiving discs under the feel of the pump
housing or the motor.
ENGLISH
5 1 2 3 4
20
(Filter for intake pipe)
1) Filter body
2) Narrow mesh filter
3) Differential pressure gauge
4) Perforated sheet
5) Pump intake aperture