Grundfos SQF, Инструкция по установке и эксплуатации

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Pos. Description
A
Minimum borehole diameter (recommended):
- Ø76 (3") for SQF 0.6, SQF 1, SQF 1.2, SQF
2.5, SQF 3, SQF 5, SQF 7.
- Ø105 (4") for SQF 3A, SQF 5A, SQF 7, SQF
9, SQF 14.
Borehole diameter should include: product di-
ameter, well casing tolerance and borehole
tolerance.
B
Product diameter:
- Ø74 (3") for SQF 0.6, SQF 1, SQF 1.2, SQF
2.5, SQF 3, SQF 5, SQF 7.
- Ø101 (4") for SQF 3A, SQF 5A, SQF 7, SQF
9, SQF 14.
3.1.2 Installation depths
• Maximum installation depth:
- 150 m below the static water level, which is the
level of water when the product is not in
operation.
• Minimum installation depths:
- Vertical installation: During startup and
operation, the product, including the level
sensor, must be completely submerged in
water.
- Horizontal installation: The level sensor must
be installed at least 0.3 m below the dynamic
water level, which is the level of water when
the pump is in operation. Note that the level
sensor must be completely submerged in
water and lifted above the product.
1
2
A
B
TM071581
Horizontal installation
Pos. Description
1 Dynamic water level
2 Level sensor
A Minimum 0.3 m above the level sensor
B
Cable length below level sensor: 0.3 - 0.6 m
(product specific)
3.1.3 Position of the product
The pump is suitable for vertical as well as horizontal
installation and any position in between.
TM080268
Pump positions
Never place the pump shaft below the hor-
izontal plane.
3.2 Mechanical installation
DANGER
Electric shock
Death or serious personal injury
‐
Switch off the power supply before you
start any work on the product.
‐
Make sure that the power supply can-
not be switched on accidentally.
WARNING
Contamination when pumping drinking
water
Death or serious personal injury
‐
Before the pump is used for supplying
drinking water, flush the pump thor-
oughly with clean water.
‐
Do not use the pump for drinking water
if the internal parts have been in con-
tact with particles or substances not
suitable for water intended for human
consumption.
The pump must be installed according to
national water regulations and standards.
7
English (GB)