Install The Pump; Mechanical Installation - Lowara ESH Serie Manual De Instalación, Funcionamiento Y Mantenimiento

en - Original instructions
Pump Type
Single phase standard
electric pump ≤ 2.2 kW
Three phase electric
4
pump
• The control panel must be equipped with a dry-
running protection system to which a pressure
switch, float switch, probes, or other suitable de-
vice is connected.
• The following devices are recommended for use
on the suction side of the pump:
– When the liquid is pumped from a water sys-
tem, use a pressure switch.
– When the liquid is pumped from a storage
tank or reservoir, use a float switch or probes.
• When thermal relays are used, relays that are
sensitive to phase failure are recommended.
The motor checklist
WARNING:
• Read the operating instructions in or-
der to ensure whether a protection
device is provided if another motor
other than the standard is used.
• If the motor is equipped with automat-
ic thermal protectors, be aware of the
risk of unexpected starts in connec-
tion to overload. Do not use such mo-
tors for fire-fighting applications.
NOTICE:
• Only use dynamically balanced motors with a
half-sized key in the shaft extension (IEC
60034-14) and with normal vibration rate (N).
• The mains voltage and frequency must agree
with the specifications on the data plate.
In general, motors can operate under the following
mains voltage tolerances:
Frequency Hz Phase ~
50
60
3
fuses aM (motor starting), or magneto-thermal switch with curve C and Icn ≥ 4,5 kA or other equivalent device.
4
Overload thermal relay with trip class 10A + fuses aM (motor starting) or motor protection magneto-thermal switch with
starting class 10A.
20
Protection
– Built-in automatic
reset thermal-am-
perometric protec-
tion (motor protec-
tor)
– Short circuit protec-
tion (must be sup-
plied by the instal-
3
ler)
– Thermal protection
(must be supplied
by the installer)
– Short circuit protec-
tion (must be sup-
plied by the instal-
ler)
UN [V] ± %
1 220 – 240 ± 6
3 230/400 ± 10
400/690 ± 10
1 220 – 230 ± 6
3 220/380 ± 5
380/660 ± 10
Use cable according to rules with 3 leads (2+earth/
ground) for single phase versions and with 4 leads
(3+earth/ground) for three phase version.

4.3 Install the pump

4.3.1 Mechanical installation

Check the following before installation:
• Use a concrete of compressive strength class
C12/15 which meets the requirements of expo-
sure class XC1 to EN 206-1.
• The mounting surface must have set and must
be completely horizontal and even.
• Observe the weights indicated.
Install the pump set
For examples of horizontal installations, see
15 on page 378
Check that the foundation has been prepared in ac-
cordance with the dimensions given in the outline
drawing/general arrangement drawing.
For information about the pump base and anchor
holes, see Figure 16 on page 379.
1. Position the pump set on the foundation and
level it with the help of a spirit level that is
placed on the discharge port.
The permissible deviation is 0.2 mm/m.
2. Remove the plugs covering the ports.
3. Align the pump and piping flanges on both sides
of the pump. Check the alignment of the bolts.
4. Fasten the piping with bolts to the pump. Do not
force the piping into place.
5. Use shims for height compensation, if necessa-
ry.
Always fit shims, if any, immediately to the left
and right of the foundation bolts between the
baseplate/foundation. For a bolt-to-bolt distance
(L) > 800 mm, fit extra shims halfway between
the bolt holes.
6. Make sure that all shims lie perfectly flush.
7. Insert the foundation bolts into the holes provid-
ed.
8. Use concrete to set the foundation bolts into the
foundation.
9. Wait until the concrete has set firmly, and then
level the baseplate.
10. Tighten the foundation bolts evenly and firmly.
Note:
• For baseplates, it is recommended to grout the
baseplate with low-shrinkage concrete.
• If the transmission of vibrations can be disturb-
ing, provide vibration-damping supports between
the pump and the foundation.
Mount the pump to a base frame
Be sure to check that the following are adhered to:
Figure