Technical Description - Wilo Economy-MHI Instrucciones De Instalación Y Funcionamiento

English
1. General
About this document
The language of the original operating instructions
is English. All other languages of these instructions
are translations of the original operating instruc-
tions.
These installation and operating instructions are
an integral part of the product. They must be kept
readily available at the place where the product is
installed. Strict adherence to these instructions is a
precondition for the proper use and correct opera-
tion of the product.
These installation and operating instructions cor-
respond to the relevant version of the product and
the underlying safety standards valid at the time of
going to print.
EC declaration of conformity:
A copy of the EC declaration of conformity is a com-
ponent of these operating instructions.
If a technical modification is made on the designs
named there without our agreement or the declara-
tions made in the installation and operating instruc-
tions on product/personnel safety are not observed,
this declaration loses its validity.
1.1 Applications
The pump is suitable for drinking water, heating
water, industrial water, condensate, water/gly-
col mixtures up to a ratio of 40% glycol as well as
other fluids free from mineral oil and without ab-
rasives or long-fibred substances.
The main areas of use are in water supply installa-
tions, as a booster pump, as a boiler feed pump, in
industrial circulation systems, in process techno-
logy, in cooling water systems, in fire extinguishers
and in washing and sprinkler installations.
Approval from the manufacturer must be obtained
beforehand if corrosive chemicals are to be pum-
ped.
Figures:
1 Cross-section of the pump with reference numbers.
2. Positioning and pipework of the pump.
3. Drawing showing dimensions.
4. Plan of electrical connections.
12

1.2 Technical description

1.2.1 Performance and electrical data
Single-phase:
1 ~ 230 V (±10%)/50Hz or
220 V (-10%)/60Hz - 240 V (+6%)/60Hz
Three-phase:
3 ~ 230/400 V (±10%)/50 Hz or
220/380 V (-10%)/60 Hz - 265/460 V (+10%)/60 Hz
Motor power:
see motor rating plate,
Maximum current:
see motor rating plate,
Fluid temperature:
–15°C to 110°C with gaskets – EPDM (WRAS),
–15°C to 90°C version with gaskets – VITON
Max. permissible working pressure: 10 bar Max.
permissible inlet pressure: 6 bar
Max. ambient temperature: 40°C
Protective system: IP54
Sound pressure level 0/+3 dB(A):
Power (kW)
0.55. 0.75 1.1
≤62 ≤62 ≤68
Other voltages/frequencies and material properties
are optional and/or available on request.
When pumping viscous fluids (e.g. water/glycol
mixtures) adjust the pump data to allow for the hig-
her viscosity.
Only use branded glycol mixtures with corrosion
inhibitors and follow the manufacturers instructions.
For dimensions see table and Fig. 3.
1.5 2.2
≤68 ≤66
WILO SE 10/2017