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CNH-ML Series
Allweiler CNH-ML Series User Manual
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Centrifugal
pump
with
volute
casing
Original
Operating
Manual
CNH-ML
series
V
ersion
BA-2017.02
en-US
ID-No.
550
406
160-276/0
ALL
WEILE
R
GmbH
Postfach
1
140
Allweilerstr.
1
78301
Radolfzell
Germany
Phone:
+49
(0)
7732-8
6-0
Fax:
+49
(0)
7732-8
6-43
6
Email:
service@allweiler
.de
Internet:
http://www
.allweiler
.com
We
reserve
the
righ
t
to
m
ake
technical
changes.
Read
carefully
before
use.
Save
for
future
use.
2
Table of Contents
Default Chapter
2
Table of Contents
2
1 About this Document
5
Target Groups
5
Other Applicable Documents
5
Target Groups and Their Duties
5
Other Applicable Documents and Their Purpose
5
Warnings and Symbols
6
Technical Terms
6
Warnings and Consequences of Disregarding Them
6
Symbols and Their Meaning
6
Technical Terms and Their Meaning
6
2 Safety
7
Intended Use
7
General Safety Instructions
7
Product Safety
7
Operator's Obligations
8
Duties of the Operating Personnel
8
Special Hazards
8
Explosion Hazard Area
8
Hazardous Pumped Media
8
Magnetic Field
8
3 Layout and Function
9
Labels
9
Type Plate
9
ATEX Plate
9
Pump Type Code
9
Design Characteristics
9
Construction
10
Auxiliary Systems
11
Heating the Casing
11
4 Transport, Storage and Disposal
12
Transport
12
Unpacking and Inspection on Delivery
12
Lifting
12
Preservation
13
Storage
13
Treatment for Storage
13
Remove the Preservative Treatment
14
Disposal
14
5 Setup and Connection
15
Preparing the Setup
15
Checking the Ambient Conditions
15
Preparing the Site for the Installation
15
Preparing the Foundations and Installation Surface
15
Remove the Preservative Treatment
15
Installing the Heat Insulation (Optional)
15
Installing with Foundations
16
Setting the Pump Aggregate on the Foundation
16
Fixing the Pump Aggregate
17
Installation Without Foundation
17
Mounting the Motor
18
Planning the Piping
18
Specifying Supports and Flange Connections
18
Specifying Nominal Diameters
18
Specifying Pipe Lengths
18
Optimizing Cross-Section and Direction Changes
18
Discharging Leaks
19
Providing Safety and Control Devices (Recommended)
19
Connecting the Pipes
19
Keep the Piping Clean
19
Installing Auxiliary Piping
19
Installing the Suction Pipe
19
Installing the Pressure Pipe
19
Inspection for Stress-Free Pipe Connections
20
Inspecting the Support Foot for Distortion
20
Electrical Connection
20
Connecting the Motor
20
Checking the Direction of Rotation
20
Precisely Align the Coupling
21
Aligning the Motor
22
Aligning the Motor Using Sets of Shims
22
Aligning the Motor with Adjusting Screws
22
5.10 Installing the Coupling Guard
22
6 Operation
23
Preparations for the Initial Start-Up
23
Identifying the Pump Type
23
Remove the Preservative Treatment
23
Lubricating the Bearings
23
Preparing Auxiliary Systems (if Available)
24
Filling and Bleeding
24
Start-Up
24
Switching on
24
Switching off
25
Shutting down
25
Start-Up Following a Shutdown Period
26
Running the Stand-By Pump
26
Actions to be Taken for Pump Shutdowns
26
Measures Depending on Nature of Pumped Medium
26
Actions to be Taken after Prolonged Shutdown Periods
26
7 Maintenance
27
Inspections
27
Maintenance
28
Antifriction Bearings Lubricated with
28
Grease
28
Antifriction Bearing with Oil Lubrication
28
Cleaning the Pump
28
Disassembling
29
Returning the Pump to the Manufacturer
29
Actions for Return
29
Preparations for Disassembling
30
Assembling the Pump
30
Ordering Replacement Parts
31
8 Troubleshooting
32
Tab
32
Fault Number Assignment
32
Troubleshooting List
34
9 Appendix
35
Sectional Drawings
35
Auxiliary Connections
35
Part Numbers and Designations
35
Tab
35
Abbreviations for the Connection Names
35
Designations of Components Listed with Part Numbers
36
Overview Sectional Drawing
37
Coupling Guard
40
Technical Specifications
41
Ambient Conditions
41
Parameters for Auxiliary Systems
41
Sound Pressure Level
41
Operating Parameters for Heating Chamber
41
Tightening Torques
42
Lubricants
42
Cleaning Agents
42
Tab
42
Minimum Amounts for Oil Lubrication
42
Height Offset to Align the Motor Using
43
Adjusting Screw
43
Tab. 22
43
Height Setting on the Adjusting Screw
43
Flange Loads According to ISO 5199
44
Flange Loads
44
Spare Parts for 2 Years of Continuous Operation According to DIN 24296
45
Tab
46
Replacement Parts for 2 Years of Continuous Operation
46
Declaration of Harmlessness
47
Declaration of Conformity According to EC Machine Directives
48
4
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Allweiler CNH-ML Series Specifications
General
Brand
Allweiler
Model
CNH-ML Series
Category
Water Pump
Language
English
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