B&C Technologies IM Series Industrial Ironer - Manual (Page 109)

Caution
Caution
Etanorm SYA
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6.1.4 Start-up
Always make sure that the shut-off element in the discharge line
is closed before the pump is started up. Only after the pump has
reached full rotational speed shall the shut-off element be
opened slowly and adjusted to comply with the duty point.
If the system is completely primed, start-up can take place with
the shut-off valve on the discharge side open even when com-
missioning a new pump.
During operation, the pump inlet pressure must fall below the at-
mospheric pressure.
Do not touch the pump, risk of burning!
After the operating temperature has been
reached and/or in the event of leakage, switch off
the unit and re-tighten the hex. nuts 920.1 and 920.2.
For tightening torques please refer to section 7.5.3.
6.1.5 Shutdown
Close the shut-off element in the discharge line.
If the discharge line is equipped with a non-return or check
valve, the shut-off element may remain open, provided there is
back pressure in the line.
Make sure the shut-off element in the inlet line is open
when switching off the pump.
Switch off the drive, making sure that the unit runs smoothly
down to a standstill.
Depending on the type of installation, the pump should have a
sufficient run-down period - with the heat source shut off - until
the medium handled has cooled down sufficiently to avoid a
heat build-up in the pump.
In the case of a prolonged shutdown, the shut-off valve in the
inlet line must be closed. Close the auxiliary lines.
In the event of frost and/or prolonged shutdowns, the pump (if
handling water) must be drained or otherwise protected against
freezing.
6.2 Operating Limits
6.2.1 Temperature of the Medium Handled
Do not operate the pump at temperatures ex-
ceeding those specified on the data sheet or the
name plate.
6.2.2 Switching Frequency
To prevent high temperature increases in the motor and exces-
sive loads on the pump, coupling, motor, seals and bearings,
the switching frequency must not exceed 15 start-ups per hour
(h).
6.2.3 Minimum Flow
If the plant configuration is such that the pump might be oper-
ated against a closed discharge side valve, a minimum flow of
~ 25 % of Q
opt.
has to be ensured during this interval.
6.2.4 Minimum Permissible Speeds
For pump control systems with continuously variable speed ad-
justment: n
min
= 800 1/min.
6.2.5 Density of the Medium Handled
The power input of the pump will increase in proportion to the
density of the medium handled. To avoid overloading of the mo-
tor, pump and coupling, the density of the medium must comply
with the data specified on the purchase order.
6.3 Shutdown / Storage / Preservation
Each KSB pump leaves the factory carefully assembled. If com-
missioning is to take place some time after delivery, we recom-
mend that the following measures be taken for pump storage.
6.3.1 Storage of New Pumps
- New pumps are supplied by our factory duly prepared for
storage.
Maximum protection for up to 12 months, if the pump is
properly stored indoors.
- Store the pump in a dry location.
6.3.2 Measures to Be Taken for Prolonged Shutdown
1. The pump remains installed; periodic check of opera-
tion
In order to make sure that the pump is always ready for
instant start-up and to prevent the formation of deposits
within the pump and the pump intake area, start up the
pump set regularly once a month or once every 3 months for
a short time (approx. 5 minutes) during prolonged shutdown
periods. Prior to an operation check run ensure that there is
sufficient liquid available for operating the pump.
2. The pump is removed from the pipe and stored
Before putting the pump into storage carry out all checks
specified in section 7.1. Then apply appropriate preserva-
tives:
- Spray-coat the inside wall of the pump casing, and in par-
ticular the impeller clearance areas, with a preservative.
Spray the preservative through the suction and discharge
nozzles. It is advisable to close the nozzles (for ex. with
plastic caps or similar).
6.4 Returning to Service after Storage
Before returning the pump to service carry out all checks and
maintenance work specified in sections 7.1 and 7.2.
In addition, the instructions laid down in the sections on
”Commissioning” (6.1) and ”Operating Limits” (6.2) must
be observed.
Upon completion of the work, all safety-related and pro-
tective equipment must be properly refitted and/or reacti-
vated before starting the pump set.
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