English (GB)
Installation and operating instructions
Original installation and operating instructions
Table of contents
General information . . . . . . . . . . . . . 5
Hazard statements . . . . . . . . . . . . . . 5
Notes . . . . . . . . . . . . . . . . . . . . . 6
Safety information for the motor . . . . . . . 6
Receiving the product. . . . . . . . . . . . 6
Transporting the product . . . . . . . . . . . 6
Unpacking the product . . . . . . . . . . . . 6
Inspecting the product . . . . . . . . . . . . 6
Lifting the product . . . . . . . . . . . . . . . 6
Installing the product . . . . . . . . . . . . 11
Mechanical installation . . . . . . . . . . . . 11
Electrical connection . . . . . . . . . . . . . 18
Starting up the product . . . . . . . . . . . 19
Startup procedure. . . . . . . . . . . . . . . 20
Shaft seal run-in. . . . . . . . . . . . . . . . 21
Product introduction . . . . . . . . . . . . 21
Identification. . . . . . . . . . . . . . . . . . 21
Intended use of the product . . . . . . . . . 23
Operating the product. . . . . . . . . . . . . 23
Servicing the product . . . . . . . . . . . . 24
Contaminated pumps . . . . . . . . . . . . . 25
Service documentation . . . . . . . . . . . . 25
Maintaining the product . . . . . . . . . . . . 25
Taking the product out of operation . . . . 26
Frost protection . . . . . . . . . . . . . . . . 26
Taking the product permanently out of
operation . . . . . . . . . . . . . . . . . . . 26
Fault finding the product . . . . . . . . . . 28
The motor does not run when started. . . . . 28
The motor-protective circuit breaker trips
occasionally.. . . . . . . . . . . . . . . . . . 28
The motor-protective circuit breaker has
not tripped, but the pump does not run. . . . 28
The pump performance is not constant. . . . 29
The pump runs, but gives no water. . . . . . 29
The pump runs backwards when
switched off. . . . . . . . . . . . . . . . . . . 29
Leakage in the shaft seal. . . . . . . . . . . 29
Noise. . . . . . . . . . . . . . . . . . . . . . 29
Technical data . . . . . . . . . . . . . . . . 30
Operating conditions . . . . . . . . . . . . . 30
Dimensions and weights . . . . . . . . . . . 31
Electrical data . . . . . . . . . . . . . . . . . 31
Sound pressure level . . . . . . . . . . . . . 31
Disposing of the product . . . . . . . . . . 32
1. General information
These installation and operating instructions describe
Grundfos CR, CRN 95 to 255.
Sections 1-4 give the information necessary to be
able to unpack, install and start up the product in a
safe way.
Sections 5-10 give important information about the
product, as well as information on service, fault
finding and disposal of the product.
Read this document before you install the
product. Installation and operation must
comply with local regulations and accepted
codes of good practice.
1.1 Hazard statements
The symbols and hazard statements below may
appear in Grundfos installation and operating
instructions, safety instructions and service
instructions.
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
personal injury.
WARNING
Indicates a hazardous situation which, if
not avoided, could result in death or seri-
ous personal injury.
CAUTION
Indicates a hazardous situation which, if
not avoided, could result in minor or mod-
erate personal injury.
The hazard statements are structured in the following
way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
•
Action to avoid the hazard.
5
English (GB)
Содержание CRN 125-11
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