Installation - Lowara SV-B Instalación Funcionamiento Y Mantenimiento

Improper use
WARNING:
Improper use of the pump may create dangerous conditions and
cause personal injury and damage to property.
An improper use of the product leads to the loss of the warranty.
Examples of improper use:
• Liquids not compatible with the pump construction materials
• Hazardous liquids (such as toxic, explosive, flammable, or corrosive liq-
uids)
• Potable liquids other than water (for example, wine or milk)
Examples of improper installation:
• Hazardous locations (such as explosive, or corrosive atmospheres).
• Location where the air temperature is very high or there is poor ventila-
tion.
• Outdoor installations where there is no protection against rain or freezing
temperatures.
DANGER:
Do not use this pump to handle flammable and/or explosive liq-
uids.
NOTICE:
• Do not use this pump to handle liquids containing abrasive, solid, or fi-
brous substances.
• Do not use the pump for flow rates beyond the specified flow rates on
the data plate.
Special applications
Contact the Sales and Service Department in the following cases:
• If the density and/or viscosity value of the pumped liquid exceeds the
value of water, such as water with glycol; as it may require a more power-
ful motor.
• If the pumped liquid is chemically treated (for example softened, deion-
ized, demineralized etc.).
• If the pump will be installed horizontally, a special version and mounting
brackets must be requested.
• Any situation that is different from the ones that is described and relate
to the nature of the liquid.
3.2 Application limits
Maximum working pressure
For SV-H (150°C) with special EPDM gaskets, see Figure 31
For SV-B (180°C) with special gaskets, see Figure 32
The following formula is valid for motors that are provided with the drive-
end bearing axially locked (such as the Lowara standard motors for e-SV),
see Figure 6. For other situations, contact the Sales and Service Department.
P + P ≤ PN
1max max
P Maximum inlet pressure
1max
P Maximum pressure generated by the pump
max
PN Maximum operating pressure
Be aware that you must have axially locked motor shafts because of the axial
thrust generated by a positive inlet pressure.
Maximum number of starts per hour
This table shows the number of starts allowed per hour for motors supplied
by Lowara:
kW 0.25 - 4.00 - 11.0 -
3.00 7.50 15.0
Starts 60 40 30
per hour
NOTICE:
If you use a different motor from the standard one supplied with the elec-
tric-pump, check the relevant instructions to find out the permitted number
of starts per hour.
3.3 Data plate
The data plate is a metal label that is located on the adaptor. The data plate
lists key product specifications. For more information, see Figure 1.
e-SV - English
18.5 - 30.0 - 45.0 55.0
22.0 37.0
24 16 8 4
en - Translation of the original instructions
Product denomination
See Figure 3 for an explanation of the identification code for the pump and
for an example.

4 Installation

Precautions
WARNING:
• Observe accident prevention regulations in force.
• Use suitable equipment and protection.
• Always refer to the local and/or national regulations, legisla-
tion, and codes in force regarding the selection of the installa-
tion site, and water and power connections.
WARNING:
• Make sure that all connections are performed by qualified in-
stallation technicians and in compliance with the regulations
in force.
• Before starting work on the unit, make sure that the unit and
the control panel are isolated from the power supply and can-
not be energized. This applies to the control circuit as well.
4.1 Earthing grounding
WARNING:
• Always connect the external protection conductor to earth
(ground) terminal before making other electrical connections.
• You must earth (ground) all electrical equipment. This applies
to the pump equipment, the driver, and any monitoring
equipment. Test the earth (ground) lead to verify that it is
connected correctly.
• If the motor cable is jerked loose by mistake, the earth
(ground) conductor should be the last conductor to come
loose from its terminal. Make sure that the earth (ground)
conductor is longer than the phase conductors. This applies
to both ends of the motor cable.
• Add additional protection against lethal shock. Install a high-
sensitivity differential switch (30 mA) [residual current device
RCD].
4.2 Facility requirements
4.2.1 Pump location
DANGER:
Do not use this pump in environments that may contain flam-
mable/explosive or chemically aggressive gasses or powders.
Guidelines
Observe the following guidelines regarding the location of the product:
• Make sure that no obstructions hinder the normal flow of the cooling air
that is delivered by the motor fan.
• Make sure that the installation area is protected from any fluid leaks, or
flooding.
• If possible, place the pump slightly higher than the floor level.
• The ambient temperature must be between 0°C (+32°F) and +40°C
(+104°F).
• The relative humidity of the ambient air must be less than 50% at +40°C
(+104°F).
• Contact the Sales and Service Department if:
• The relative air humidity conditions exceed the guidelines.
• The room temperature exceeds +40°C (+104°F).
• The unit is located more than 1000 m (3000 ft) above the sea level.
The motor performance may need to be de-rated or replaced with a
more powerful motor.
For information about which value to de-rate the motor with, see Table 8.
Pump positions and clearance
Provide adequate light and clearance around the pump. Make sure that it is
easily accessible for installation and maintenance operations.
Installation above liquid source (suction lift)
The theoretical maximum suction height of any pump is 10.33m. In practice,
the following affect the suction capacity of the pump:
• Temperature of the liquid
• Elevation above the sea level (in an open system)
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