Espa Multi VX Manuel D'instructions page 14

3.1.5 Number of starts per hour 3.1.5 Number of starts per hour
3.1.5 Number of starts per hour 3.1.5 Number of starts per hour
For electric pumps coupled to motors supplied by Espa, the maximum number of work cycles (starts and stops) in one hour are as follows:
k k k k W W W W 0,25 0,37 0,55
n n n n
If you use a different motor from the standard one supplied by Espa, check the relevant instructions to find out the maximum number of work cycles allowed.
3.1.6 Ins 3.1.6 Installation Site tallation Site
3.1.6 Ins 3.1.6 Ins tallation Site tallation Site
Protect the pump/electric pump from the weather (rain, wind...) and freezing temperatures. Provide adequate ventilation for motor cooling purposes.
Ambient temperature +0°C to +40°C.
Relative ambient humidity must not exceed 50% at +40°C.
For temperatures above +40°C and for installation sites located at elevations of over 1000 meters above sea level, the motor must be derated (the power
it delivers must be decreased) to guarantee its proper cooling. The motor may have to be replaced with a more powerful one. When in doubt, please contact our
Sales and Service Department.
If the relative air humidity conditions are high, please contact our Sales and Service Department.
For additional information ➜ section 11.10.
Do not use the pump/electric pump in environments that may contain flammable/explosive or chemically aggressive gases or powders.
Provide adequate lighting and clearance around the pump/electric pump. Make sure it is easily accessible for installation and maintenance operations. Make
sure that any fluid leaks or other events of this nature will not lead to flooding of the installation area and consequent submersion of the pump/electric pump.
3.1.7 Power Supply Requirements 3.1.7 Power Supply Requirements 3.1.7 Power Supply Requirements 3.1.7 Power Supply Requirements
Make sure that the supply voltages and frequencies are suited to the characteristics of the electric motor. Check the motor rating plate.
In general, the supply voltage tolerances for motor operation are as follows:
3.1.8 Sound Emission Level 3.1.8 Sound Emission Level 3.1.8 Sound Emission Level 3.1.8 Sound Emission Level
The noise levels of the electric pump, if correctly installed and operating within the working limits specified in the rating plate and technical/sales literature,
are specified in section 11.11.
3.1.9 Special Applications 3.1.9 Special Applications 3.1.9 Special Applications 3.1.9 Special Applications
Please contact our Sales and Service Department if:
- you must pump liquids with a density and/or viscosity value exceeding that of water (such as water and glycol mixture) as it may be necessary to
install a more powerful motor
- you must pump chemically treated water (softened, deionized, demineralized, ...)
- you wish to install the pump horizontally (➜ section 10)
and for any situation other than the ones described, related to the nature of the liquid and/or the installation.
3.1.10 Improper Use 3.1.10 Improper Use 3.1.10 Improper Use 3.1.10 Improper Use
If you use the pump/electric pump improperly, you may create dangerous conditions and cause personal injury and damage to property. Here are a few
examples of improper use:
- pumping liquids that are not compatible with the pump construction materials - pumping hazardous (toxic, explosive, corrosive) liquids
- pumping drinking liquids (wine, milk ...)
- installing the pump/electric pump in hazardous locations (explosive atmospheres)
- installing the electric pump in a location where the air temperature is very high and/or there is poor ventilation - installing the electric pump outdoors where
it is not protected against rain and/or freezing temperatures
3.2 Warranty 3.2 Warranty
3.2 Warranty 3.2 Warranty
Please refer to the sale contract for any information.
0,75 1,1 1,5 2,2
60
F UN
Hz ~ V
50 1 220-240
50 3 230/400
50 3 400/690
3 4 5,5 7,5
40
f
± % Hz
6 60
10 60
10 60
- 14 -
11 15 18,5 22
30 24
UN
~ V ± %
1 220-230 6
3 220/380 5
3 380/660 5
30 37 45
16 8