Technical Description; Technical Features - Calpeda NR Instructions Pour L'utilisation

It's forbidden, for the end user, carry out
i
operations which must be done only by
specialized technicians. The manufacturer
declines any liability for damage related to the
non-compliance of this warning.
1.4 Warranty
For the product warranty refer to the general terms
and conditions of sale.
The warranty covers only the replacement and
i
the repair of the defective parts of the goods
(recognized by the manufacturer).
The Warranty will not be considered in the following
cases:
- Whenever the use of the device does not conform
to the instructions and information described in this
manual.
- In case of changes or variations made without
authorization of the manufacturer.
- In case of technical interventions executed by a
non-authorized personnel.
- In case of failing to carry out adequate maintenan-
ce.
1.5 Technical assistance
Any further information about the documentation,
technical assistance and spare parts, shall be reque-
sted from: Calpeda S.p.A. (paragraph 1.2).

2 TECHNICAL DESCRIPTION

Pump casing with suction and delivery connections with
the same diameter and on the same axis (in-line).
NR,NR4: Close-coupled, single-impeller, centrifugal
pumps; electric motor with extended shaft directly con-
nected to the pump.
NRD,NRD4: Close-coupled, double volute, flap valve,
centrifugal pumps; electric motor with extended shaft
directly connected to the pump.
2.1 Intended use
Standard construction
For clean liquids, without abrasives, which are non-
aggressive for the pump materials (contents of solids
up to 0.2%).
Liquid temperature from -10 °C to +90 °C.
Special construction
For clean liquids, without abrasives, which are non-
aggressive for the pump materials (contents of solids
up to 0.2%) with the following characteristics:
- Cooling mixtures with temperatures from 0 to -30 °C.
- Water with temperatures from 90 °C to 140 °C.
- Oil with temperature up to 200 °C and / or maximum
viscosity of 30 cSt.
2.2 Improper use
The device is designed and built only for the purpose
described in paragraph 2.1.
Improper use of the device is forbidden, as is
use under conditions other than those
indicated in these instructions.
Improper use of the product reduces the safety and
the efficiency of the device, Calpeda shall not be
responsible for failure or accident due to improper
use.
2.3 Marking
The following picture is a copy of the name-plate that
is on the external case of the pump.
NR(D), NR(D)4 Rev. 14 - Operating Instructions
Example plate pump
Montorso (VI) Italy IT 00142630243
1
XXXXXXX
AAAAXXXXX
8
XX XX
2900/min kW ( Hp)
2
XX XX
Q min/max / m /h
3
3
XX XX
H max/min / m
4
XXXXXX
Example plate motor
4
5
6
Montorso (VI) Italy IT 00142630243
7
AAAAXXXXX
XX kW (XX Hp)
8
XX XX
400∆/690Y V3~50Hz / A
9
n 2900/min S1 l.cl. F
10
V % cosϕ
η
15
400 100 0,84 87,5
XX
16
400 75 0,78 88,1
17 IP
400 50 0,67 87,4
18
IE2-87
IEC 60034-1

3 TECHNICAL FEATURES

3.1 Technical data
Dimensions and weight (paragraph 12.1).
Nominal speed 1450/1750/2900/3450 rpm
Protection IP 54 (IP 55 Special construction)
Supply voltage / Frequency:
- up to 240V 1~ 50/60 Hz
- up to 480V 3~ 50/60 Hz
Check that the mains frequency and voltage corre-
spond to the electrical characteristics shown on the indi-
cator plate.
The electric data marked on the label are referred to
the nominal power of the motor.
Rated motor power
NR(D) (2900 1/min) up to kW:
NR(D)4 (1450 1/min) up to kW:
Sound pressure dB (A)
Starts per hour
Maximum permissible working pressure up to 100 m (10 bar).
Maximum suction pressure: PN (Pa) - Hmax (Pa).
3.2 Operating conditions
Installation in well ventilated location protected from
the weather, with a maximum ambient temperature of
40 °C.
4 SAFETY
4.1 General provisions
Before using the product it is necessary to
know all the safety indications.
Carefully read all operating instructions and
the indications defined for the different steps:
from transportation to disposal.
The specialized technicians must carefully comply
with all applicable standards and laws, including
local regulations of the country where the pump is
sold.
The device has been built in conformity with
the current safety laws. The improper use
could damage people, animals and objects.
The manufacturer declines any liability in the
event of damage due to improper use or use
under conditions other than those indicated on
the name-plate and in these instructions.
Follow the routine maintenance schedules
i
and the promptly replace damaged parts, this
will allows the device to work in the best
conditions.
1 Type 1
2 Delivery
11
3 Head
Made in Italy
4 Rated power
12
5 Supply voltage
6 Fréquence
7 Nom. motor current
8 Rotation speed rpm
9 Operation Duty
14
10 Insul. class
11 Certifications
12 AAAA Year of
manufacture
12 XXXX Serial number
Made in Italy
13 Weight
14 Notes
15 Voltage
16 % Load
17 Power factor
13
kg
18 Efficiency
XX
19
19 Protection
20
20 Efficiency Class
2,2 7,5 18,5
5,5
max: 68 72 78
max: 20 16 12
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EN