ENGLISH
4.2.1 Set value settings
The operating mode and set value signal are set via the bridges on
the signal terminals (See 5.2).
Type SIE..BV :
The set value can be set as a nominal pressure value (H s ) or
speed (n s ) and increased or reduced using the two buttons :
H s :
Nominal pressure value in % of final pressure sensor value
(only applies to pressure control mode); a manometer is
required to adjust the set value.
n s :
Nominal speed in accordance with the mains frequency
20 ... 50 Hz (for regulator mode).
• Control system mode (∆p-c) : The actual value of the pressure in the
system is constantly compared to the preset set value and the
speed of the pump adjusted accordingly. The control is notified of
the actual value via a corresponding pressure sensor
"0-10 V" (0 V = 0 bar).
Setting for control system mode : (Factory setting)
Bridge between terminal 5 and terminal 10 closed (FIG. 5).
• Regulator mode (n-const) : A specific frequency and with it the
speed is set at the buttons which is kept constant regardless of the
quantity being pumped. In this case the pressure drops as the quan-
tity pumped rises and vice versa.
Switching to regulator mode :
Bridge between terminal 5 and terminal 10 open (remove) (FIG. 4).
Type SIE..ED :
• Regulator mode (n-const) : The speed and frequency of the pump
are controlled via an external control unit, e.g. by the switchgear of
a building management system (BMS). The control signal is transfer-
red via voltage or current. The pump is switched off if the current is
<1V or <2mA (External Off) (FIG. 9).
• 0-10 V : External regulator mode "0-10 V" (Factory setting).
Terminal 2 as 0...10 V signal applied via switch S3
• 0-20 mA : External regulator mode "0-20 mA" :
Convert terminal 2 as 0...20 mA signal via switch S3.
• Control system mode (∆p-c) : The set value is entered via an exter-
nal voltage signal 0...10 V or current signal 0...20 mA (FIG. 8). The
control unit is notified of the actual value via a pressure sensor to be
provided by the customer "0-10 V" (0 V = 0 bar).
Switching regulator mode (FIG. 6) to control system mode (FIG. 7) :
Change bridge between terminal 8 and terminal 20 to terminal 8
and terminal 1.
Bridge between terminal 5 and terminal 10 closed.
Entering set value : Terminal 2 as 0...10 V signal applied via switch S3
Convert terminal 2 as 0...20 mA signal via switch S3.
4.3 Products delivered
• Complete pump • Installation and Operating Instructions.
4.4 Accessories (must be ordered separately)
• Consoles with fixing accessories for construction of foundation.
• external EMC filter.
5 INSTALLATION
5.1 Siting
- Installation should only take place when all welding and soldering
work and the rinsing of the pipe network has been completed. Dirt
can have an adverse effect on the functioning of the pump.
- Installation in a dry, well-ventilated and frost-proof room.
- The pump must be installed in an easily accessible place to facili-
tate examination or replacement. The flow of air to the heat sink of
the electronic module must not be restricted.
- There is a hook or lug of suitable load-bearing capacity (total
weight of pump: see catalogue/data sheet) vertically above the
pump, to which a hoist or similar device can be attached when
maintaining or repairing the pump.
Ring bolts on the motor must only be used to sup-
CAUTION !
port the motor and not the entire pump.
- The pump is to be lifted using an approved load-suspension device
(See paragraph 3).
- Minimum axial distance between one wall and motor-fan housing:
Allow for a free size when completed of min. 200 mm.
- Blocking valve devices must always be assembled on the front and
back of the pump in order to avoid the necessity of emptying and
refilling the entire machine when changing the pump.
- There should be no mechanical strain between the pipeline and
the pump. The pipes must be attached in such a way that the
pump does not bear the weight of the pipes.
- The vent valve (FIG. 10 - item 1.31) must always point upwards.
- Each fitting position except "motor down" is authorised. (FIG. 2). If
installed with the motor shaft in a horizontal position, the motor is to
be supported.
- The electronic module may not point downwards. If necessary the
motor can be rotated after loosening the hexagon head screws.
After loosening the hexagon head screws, the dif-
CAUTION !
ferential pressure sensor only remains fastened to
the pressure gauge tubes. When rotating the motor housing ensure
that the pressure gauge tubes are not bent.
- The flow direction must correspond to the directional arrow on the
pump housing flange.
To prevent dry running in an open system the
CAUTION !
lowest liquid level always has to be above the
pump suction side . The minimum supply pressure must be observed..
- If the pump is used in air conditioning or refrigerating units, the
condensate produced in the lantern can be removed via existing
holes.
In insulated units, only the pump housing (FIG. 10 -
CAUTION !
item 3) may be insulated, not the lantern and
motor.
- The motors are fitted with condensation water holes which are sea-
led with plastic stopper on the factory side to guarantee protective
system IP 55. When used in air conditioning or refrigerating systems
this stopper must be removed downwards to allow the condensa-
tion to drain off. In case of a horizontal motor shaft the position of
the condensation hole must to be downwards. If necessary the
motor must be turned accordingly.
Protective system IP 55 is no longer guaranteed
CAUTION !
when the stopper is removed.
5.2 Electrical connection
Electrical connection must be carried out by a qualified elec-
trician. Current national regulations must be observed .
- The electricity supply must be connected via a rigid supply cable fit-
ted with a coupler or an all-pole switch with a contact gap of at
least 3 mm in accordance with the local regulations in force (e.g. in
accordance with the latest edition of IEE wiring regulations). The
mains supply cable is to be fed through the M40 cable screw
(see table below).
Power P
N
Cable cross-section [mm
- To guarantee protection against dripping water and the grip of the
cable gland, cables with an adequate outer diameter are to be
used and screwed sufficiently tightly. In addition, the cables in the
vicinity of the cable gland are to be bent into a run-off loop to drain
off any dripping water. Unoccupied cable glands must remain sea-
led with the plugs provided by the manufacturer.
- When using the pump in systems where the water temperature
exceeds 90°C, a supply cable with corresponding heat resistance
must be used.
- The supply cable must be laid in such a way that it never touches
the pipework and/or the pump and motor casing.
- This pump is equipped with a frequency converter and must not be
20
11 kW
15 kW
18,5 kW
2
]
4 - 6
6
22 kW
10