B&C Technologies IM Series Industrial Ironer - Manual (Page 108)

Caution
Caution
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Caution
Caution
Etanorm SYA
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5.4.1 Auxiliary Connections
The dimensions and locations of the auxiliary connection re-
quired for the pump (leakage connection) are indicated on the
installation plan or piping layout.
This connection is required for proper func-
tioning of the pump and is therefore of vital im-
portance!
5.5 Final Check
Re-check the alignment as described in section 5.3.1. It must
be easy to rotate the coupling/shaft by hand.
The alignment check must be repeated at operat-
ing temperature.
Check the integrity and proper functioning of all connections.
5.6 Contact Guard
In compliance with the accident prevention regula-
tions the pump must not be operated without a coupling
guard. If the customer specifically requests not to include a
coupling guard in our delivery, then the operator must supply
one.
5.7 Connection to Power Supply
Connection to the power supply must be effected by a
trained electrician only.
The applicable DIN VDE regulations 0100 and, for explosion-
proof units, 0165 shall be complied with.
Check available mains voltage against the data on the motor
rating plate and select appropriate start-up method.
Make sure to observe the technical regulations stipulated
by the local energy supply company when connecting the
pump to the power supply.
We strongly recommend to use a motor protection switch.
DIN VDE 0170/0171 stipulates that explosion-proof motors,
type of protection IP 54, ”increased safety”
EEx,
temperature class T3, must always be connected via a motor
protection switch.
5.7.1 Connecting the Motor
In compliance with DIN VDE 0530 - Part 8, the three-phase
motors are always wired for clockwise rotation (looking at the
motor shaft stub). The pump’s direction of rotation is anti-
clockwise (looking at the suction flange).
For the motor’s direction of rotation to match the pump’s
direction of rotation, the motor must be connected as shown in
fig. 5.7-1 or 5.7-2, as applicable.
D connection (low voltage)
Fig. 5.7.1 Connection diagram for three-phase motors,
D connection
Y connection (high voltage)
Fig. 5.7.2 Connection diagram for three-phase motors,
Y connection
If required, connect the PTC resistors as per DIN 44081/
44082 with the tripping unit in accordance with fig. 5.7.3.
Fig. 5.7-3 Connecting the PTC resistors
5.7.2 Setting the Time Relay
Make sure that in the case of three-phase motors with star-delta
starting method, switching over from star to delta will be effected
at very short intervals. Prolonged switch-over intervals will re-
sult in pump damage.
Setting of the time relay for star-delta starting:
Motor rating Y time to be set

30 kW
> 30 kW
< 3 sec.
< 5 sec.
5.7.3 Checking the Direction of Rotation
The direction of rotation of the motor must correspond to the
direction indicated by the arrow on the volute casing of the
pump (clockwise, when viewed from the motor end). This can
be verified by switching the pump on and then off again immedi-
ately.
If the pump runs in the wrong direction of rotation, interchange
any two phases L1, L2 or L3 of the power cable in the motor ter-
minal box.
6 Commissioning, Start-up / Shutdown
6.1 Commissioning
Before starting up the pump make sure that the
following requirements have been checked and
fulfilled.
- Make sure that the unit has been properly connected to the
electric power supply and is equipped with all protection de-
vices.
- Make sure that the pump has been primed with the liquid to be
pumped.
- Verify the correct direction of rotation.
- Make sure all auxiliary lines are connected and functioning.
6.1.1 Lubricants
The grease-lubricated deep-groove ball bearing has been
packed with grease in the factory.
6.1.2 Shaft Seal
See sections 7.4.4 and 7.5.2.
6.1.3 Priming the Pump and Checks to Be Carried out
Before start-up, the volute casing, the bearing bracket and the
inlet line must be vented and primed with the liquid to be
pumped.
The pump can be primed with clean liquid from the system
through the inlet line. Vent the volute casing by opening the dis-
charge side shutoff valve. Vent and prime the bearing bracket
by removing screwed plug 903.3. Rotate the shaft several
times by hand during priming to ensure that the bearing bracket
is completely vented (fluid escapes).
After priming, screw the plug back into the vent hole.
Depending on the system pressure and the tempera-
ture of the medium handled, hot medium may escape
or spurt out as liquid or steam when the vent plug is re-
moved.
Danger of scalding!
Protect electric components from escaping liquid!
Dry-running will result in increased wear and
must be avoided!
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