Intended Use; Product Information; Type Key - Wilo CronoNorm-NL Series Installation And Operating Instructions Manual

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4

Intended use

Purpose
Fields of application
Restrictions
5

Product information

5.1

Type key

Installation and operating instructions Wilo-CronoNorm-NL, NLG
The glanded pumps of the Stratos Wilo-CronoNorm-NL/NLG series
are intended for use as circulation pumps in building services.The
pumps are only to be used for the approved fluids according to sec-
tion 5.2 "Technical data" on page 10.
The Wilo-CronoNorm NL/NLG pumps may only be used for:
• Hot water heating systems
• Cooling and cold water circulation systems
• Potable water systems (special version)
• Industrial circulation systems
• Heat carrier circuits
Typical installation locations are technical rooms within the building
with other domestic installations. No provision has been made for
direct installation of the device in rooms used for other purposes (res-
idential and work rooms).
For these series, it is only possible to set them up outdoors in their
corresponding, special version (motor with idle heater).
CAUTION! Risk of damage to property!
Impermissible substances in the fluid can destroy the pump.
Abrasive solids (e.g. sand) increase pump wear.
Pumps without an Ex certificate are not suitable for use in poten-
tially explosive areas.
• Intended use of the pump/installation also includes following these
instructions.
• Any use above and beyond these is regarded as improper use.
The type key of a pump of type Wilo-CronoNorm-NL consists of the
following elements:
Example:
NL 40/200B-11/2
NL
Series designation: Standard pump
40
Nominal diameter DN of the pressure port
Nominal diameter of the impeller [mm]
200
Hydraulic version
B
11
Rated motor power P
2
Number of poles
The type key of a pump of type Wilo-CronoNorm-NLG consists of the
following elements:
Example:
NLG 200/315-75/4
NLG
Series designation: Standard pump
200
Nominal diameter DN of the pressure port
Nominal diameter of the impeller [mm]
315
75
Rated motor power P
4
Number of poles
English
[kW]
2
[kW]
2
9

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