Grundfos CR 1s Montage- Und Betriebsanleitung Seite 8

C/D
Inlet 1/2"
E
A
Fig. 6 Seal chamber CR, CRN 32, 45, 64, 90, 120, 150
7. Startup
See also installation and operating instructions for the standard
pump.
Before startup, the seal chamber and the pump
Caution
must be completely filled with liquid and vented.
1. Start the pump, and check the direction of rotation.
See the correct direction of rotation on the motor fan cover.
The seal chamber must always be filled with the
Caution
flushing liquid during operation. Risk of dry-
running.
8
8. Operation
To ensure optimum function and performance, make sure that the
flow of flushing liquid is always sufficient, and check that the
elevated tank never runs dry of flushing liquid.
Depending on the pumped liquid, the quality of the flushing liquid
must be checked at regular intervals to ensure optimum
operation.
8.1 Frost protection and draining of liquid
Pump
C/D
See the installation and operating instructions for the standard
Outlet 3/8"
pump.
Seal chamber
Drain the seal chamber by loosening the lower plug (pos. E).
(Pos. C/D for CR and CRN 32-90.)
9. Dimensions
E
Pump type
Sensor
A
CR, CRI, CRN 1s, 1, 3, 5
CR, CRI, CRN 10, 15, 20
CR, CRN 32, 45, 64, 90
CR, CRN 120, 150
10. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company
Warning
Pay attention to the directions of the vent holes,
and take care to ensure that the escaping liquid
does not cause injury to persons or damage to
the motor or other components.
When handling hot or hazardous liquids, special
attention should be paid to the risk of personal
injury.
or service workshop.
Additional height of
seal chamber
[mm]
108
90
140
111
Subject to alterations.