Grundfos CRNE 1 HS, Installation And Operating Instructions Manual

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6
Original installation and operating instructions.
CONTENTS
1. Symbols used in this document - 6
2. General information - 6
3. Type designation - 6
4. Applications - 6
5. Operating conditions - 6
5.1 Temperature ranges - 6
5.2 Inlet pressure - 7
5.3 Minimum flow rate - 7
5.4 Shaft seal - 7
5.5 Start/stop of pump - 7
6. Installation - 7
6.1 Motor cooling - 7
7. Electrical connection - 8
8. Start-up - 8
9. Functions - 8
10. Setting the pump - 8
11. Maintenance - 8
12. Megging - 8
13. Coupling adjustment - 8
14. Technical data - 9
14.1 Supply voltage - 9
14.2 Leakage current - 9
14.3 Enclosure class - 9
14.4 Insulation class - 9
14.5 Dimensions and weights - 9
14.6 Maximum speed and sound pressure level - 9
15. Disposal - 9
1. Symbols used in this document
2. General information
This document is a supplement to these installation and operating
instructions:
• CR, CRI, CRN (96462123)
• CRE, CRIE, CRNE, SPKE, MTRE, CHIE, CME (96780071).
3. Type designation
4. Applications
The Grundfos CRNE-HS pump is designed to handle pressures
up to 48 bar. The pump is fitted with a frequency-controlled motor
with a speed of up to 5440 min
-1
depending on motor size.
See section 14.6 Maximum speed and sound pressure level.
The pump is typically used as a pressure booster pump in
systems with variable demands.
On delivery, the pump is ready for installation and start-up.
The pump will start up at 100 % performance.
5. Operating conditions
5.1 Temperature ranges
Ambient temperature
-20 °C to +40 °C.
Liquid temperature
-20 °C to +120 °C (HQQV shaft seal: -20 °C to +90 °C).
Temperature during storage/transport
-40 °C to +60 °C.
Relative air humidity
Maximum 95 %.
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
Warning
If these safety instructions are not observed,
it may result in personal injury
Warning
If these instructions are not observed, it may lead
to electric shock with consequent risk of serious
personal injury or death.
Caution
If these safety instructions are not observed,
it may result in malfunction or damage to the
equipment.
Note
Notes or instructions that make the job easier
and ensure safe operation.
Example CRNE 1 - 23 - HS - P - GI - E - HUUE
Type range
Rated flow rate in m
3
/h
n = 3000 min
-1
Number of impellers
Code for pump version
Code for pipework connection
Code for materials
Code for rubber parts
Code for shaft seal
Caution The liquid temperature applies to the pump only.