DAB KVC Series, Инструкция по установке и обслуживанию

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ENGLISH
17
1. General
2. Applications
3. Pumped
fluids
4. Technical data
KVC-KVCX
4.1 Electrical data
4.2 Operating conditions
5. Technical data
NKV
5.1 Electrical data
5.2 Operating conditions
6. Management
6.1 Storage
6.2 Handling
KVC-KVCX / NKV 10-15-20
6.3 Handling
NKV 32-45-65-95
7. Warnings
7.1 Safety
7.2 Checking motor shaft rotation
7.3 New systems
8. Protections
8.1 Moving parts
8.2 Noise level
8.3 Hot and cold parts
9. Installation
9.1 Pump installation
9.2 Minimum inlet pressure (Z1)
9.3
Minimum suction pressure
9.4 Minimum nominal capacity
9.5 Electrical connections
9.6 Starting
9.7 Stopping
9.8 Precautions
10. Maintenance
10.1Modifications and spare parts
11. Troubleshooting
NKV Mechanical Seal Maintenance
Table A Airborne noise pumps
Table B Star-delta switch-over times
Table C
Three-phase motor connection
Chart 1 Barometric Pressure (pb)
Chart 2 Vapour Tension (pV)
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The appliance is not intendend for use by persons
(including children) with reduced physical, sensory or
mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsable for their safety.
Children should
be supervised to ensure that they do not play with the
appliance.
2. APPLICATIONS
Multistage centrifugal pumps indicated for booster
sets for water systems of small, medium and large
utilieties. They may be used in various fields of
applications such as:

for fire-fighting and washing systems,

for supplying drinking water and feeding
autoclaves,

for feeding boilers and circulating hot water,

for conditioning and chilling systems,

for circulating and industrial processing plants.
3. PUMPED FLUIDS
The machine has been designed and built for
pumping water, free from explosive substances and
solid particles or fibres, with a density of 1000 kg/m³
and a kinematic viscosity of 1 mm²/s, and chemically
non-aggressive liquids.
Small quantities of sand, up to 50 ppm, are
accepted.
4. TECHNICAL DATA
KVC – KVCX
4.1 Electrical data
- Supply voltage: 1x 220-240V – 50Hz
3x 230-400V – 50Hz
1x 115V – 60Hz
1x 220-230V – 60Hz
3x 220-230/380-400V – 60Hz
- Absorbed power: see electric data plate
- Degree of protection: IP55
- Insulation class: F
4.2 Operating conditions
1. GENERAL
Read this documentation
carefully before
installation.
Installation, electrical connection and commissioning
must be carried out by skilled personnel in
compliance with the general and local safety
regulations in force in the country of installation of
the product. Failure to comply with these instructions
not only causes risk to personal safety and damage
to the equipment, but invalidates every right to
assistance under guarantee.
- Delivery:
- Head up: 50 ÷ 200 l/min.
pag. 126
- Liquid temperature: 0
÷
35°C domestic use
(EN 60335-2-41)
- Liquid temperature: 0 ÷ 40°C for other uses
- Environment temperature: 0
÷
40°C
- Storage temperature:
-10
÷
40°C
- Maximum working pressure: 12 bar (1200 kPa)
- Relative humidity in air:
Max. 95%
- Motor construction: Cei 2-3 / Cei 61-69
(EN 60335-2-41)
- Weight: see plate on package
- Limit of operation with
closed mouth: 60 min. max.