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3.4. Electrical connection
The electrical installation must have a multi-
pole isolator with minimum 3 mm contact
openings, The protection of the system will
be
based
on
(Δfn = 30 mA)
The power cable must correspond at least to the
type H05 RN-F (according to 60245 IEC 57) and
having terminals.
The connection and its dimensioning must be per-
formed by a qualified installer according to the
needs of the facility and following the regulations in
force in each country.
The motors are not thermally protected. They
must be connected to a motor-protective
circuit breaker that can be adjusted manually.
Set the circuit breaker according to the
current given in the rating plate plus 10%.
Follow instructions given on fig.1 for correct electri-
cal connection.
3.5. Pre-start checks
Ensure the voltage and frequency of the
supply corresponds to the values indicated
on the electrical data label.
Ensure that the pump shaft is rotating freely.
Fill the pump body with water through the self-
priming plug opening. If a foot valve has been
installed, also fill the suction pipe.
Check all joints and connections for leaks.
THIS PUMP MUST NEVER BE DRY RUN.
4. STARTING
Ensure all valves in the pipework are open.
Connect power supply. There will be a delay before
water appears at the end of the discharge pipe.
Viewings from the fan ensure that the rotation of the
motor is clockwise. On three phase pumps the
motor may rotate anticlockwise. If this is happening,
the flow will be lower than expected. To rectify this
situation the two supply phases need to be re-
versed.
Ensure that the absorbed current is the same or
lower than the maximum shown on the nameplate.
Adjust the thermal relay if is necessary.
If the pump fails to operate refer to the possible
faults, causes and solutions list for assistance.
a
differential
switch
5. MAINTENANCE
Under normal conditions these pumps require no
special or planned maintenance.
Clean the pump with a damp cloth without using
harsh products.
If the pump is not to be operated for a long
period it is recommended to remove it from
the installation, drain down and store in a dry,
well ventilated place.
ATTENTION: In the event of faults or
damage occurring to the pump, repairs
should only be carried out by an authorised
service agent.
The
Official
Technical
www.espa.com.
6. DISPOSING OF THE PRODUCT
When the pump is eventually disposed of, please
note that it contains no toxic or polluting material.
All main components are material identified to allow
selective disposal.
This product or parts of it must be disposed of in an
environmentally
sound
collection service. If this is not possible, contact the
nearest ESPA service workshop.
7.
PLATE SHOWING CHARACTERISTICS
DESCRIPTION
1
Item reference
2
Voltage + frequency + item specifications
3
Flow
4
Minimum working pressure
5
Motor max. nominal output (P2) and frequency
6
EC mark
7
Pressure
8
Maximum pressure
9
Year and week of manufacture + Pump serial number
10
Max. liquid temperature
11
Engine rotation speed
12
Minimum Efficiency Index
13
Designated motor insulation
14
Continuous operation symbol
15
Name and address of vendor responsible for the product
12
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