Danfoss iSave 50, Руководство по эксплуатации

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Operating guide | iSave 50 - 70
15
180R9357 | AQ265943679828en-00100
2
IOM iSave 50 - 70 | 0
3
.202
3
Misalignment of the hard pipes may place
stress on the iSave port connections and may
damage the iSave.
6.5 Mounting of coupling
The figure below illustrates how to mount the
flexible coupling between the iSave and to
connect it to the electric motor..
Min. 3 -5 mm air space
100 NM ± 10 NM
40 NM ± 4 NM
Any axial and radial load on the shaft must be
avoided.
A: Flexible coupling
B: Bell housing
C: Motor shaft
C
A
B
6.6 Accessibility
With respect to the service and replacement
of the complete iSave unit, it is recommended to
maintain sufficient space around the unit.
The space must be sufficient enough to allow for
safe lifting of the equipment, with no risk for
personal injury and/or damage to the iSave.
6.7 Drives
6.7.1 Electric motor
The iSave must only be driven by an electric
motor.
6.7.2 Speed control
The rotation speed on the electric motor can
be controlled by a VFD. The VFD must be able to
operate at constant torque over the whole range
of speed. The direction of rotation can be seen
on the identification label.
Using anything other than an electric motor
can lead to an irreparable fracture of the
iSave’s internal parts.
PUMP
Type iSave 50 ERD
Code no. 180FXXXX
Serial no. XXXXXX02-XXX
MADE IN DENMARK
Danfoss A/S, 6430 Nordborg, Denmark
When connecting to the power supply, check the
direction of rotation. The rotation can only be
checked with water connected and iSave
bleeded. This can be made by:
1. Looking at the fan in the end of the electric
motor.
2. Removing the plug in the bell housing and
watch the rotation of coupling.
3. Before assembling the iSave on the electric
motor, check the rotation of the shaft on the
electric motor.
Special attention has to be on NON
PROTECTED - FREE ROTATING shaft on
the electric motor. Ignorance will or
could result in personal injury.
Running the iSave in the wrong direction for
more than a few minutes can cause un-
intended wear on the iSave. If the electric
motor is running at a lower speed, extra care
must be taken to ensure that the electric
motor is NOT overheated. External cooling
may be necessary.
6.7.3 Starting torque for the iSave
Because of the inertia and stick-slip friction of the
iSave internal parts, the torque may exceed the
maximum allowable operation torque for the
iSave when the speed is ramped up from zero to
maximum.
It is required to use a VFD. See Danfoss guide line
180R9372 “APP pumps and iSave overload
protection”.