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Насос Циркуляционный
Riotec 30-70
Технические данные Страница: 10

KSB Riotec 30-70 [10/19] Riotec riotec z

Riotec / Riotec Z

Can be used, for example, in condensing boi-

lers for which certain minimum condenser

temperatures have to be respected in order to

obtain the optimum degree of heating from the

heating medium.

– Regulator mode: The speed of the pump is

kept at a constant level between n

min

and n

max.

(Fig. 8). The regulator mode control system

deactivates the module control.

– With the “auto” control system, the pump is

capable of recognising the minimum requirement

for heat produced by the system by a spontaneous

drop in the temperature of the flow medium and

then of switching to light load mode (light load

curve). The control system is automatically changed

back again should more heating be required.

– The pumps are fitted with an electronic overload

protection system which switches the pump off

should it become overloaded.

– The modules are fitted with a memory to collect and

store data. What this means is that data is stored,

even during long periods of down time. Once power

has been restored, the pump runs again at the

same values at which it was running prior to the

power cut.

– The module rating plate is to be found in the ter-

minal box. It contains all data necessary for the

scheduling the unit.

– Pump kick: Pumps switched off using the on/off

switch, the PLR (pump control processor) or the

Tele-Monitor start up once every 24 hours for a

short period of time in order to avoid blockages

resulting from long down times.

Should it be foreseen that the power supply will be

switched off for a long period of time, the pump kick

should be taken over by the heating control/boiler

system. In order to do this the pump must be

plugged in (Display → on).

– External Off: (only pumps with P

1max

≥ 500 W, see

rating plate)

The pump can be switched on/off via the external

potential-free contact. Units which are switched on

and off frequently (>20 times a day) can be switched

on and off via “Ext. Off”.

– 0…10 V-input: (only pumps with P

1max

≥ 500 W,

see rating plate)

When the unit is in regulator mode the speed can

be set via an external voltage signal (0…10 V). The

frequency and thus the speed follows the voltage in

accordance with Fig. 6, input resistance: R

≥ 10 kΩ.

– +24 V output: (only pumps with P1 ≥ 500 W, see

rating plate)

constant-voltage for an external consumer/ trans-

mitter. The +24 V may be loaded with max.

50 mA. The voltage is short circuit-proof.

4.2 Double pump mode

Both pumps are controlled by the master.

Pump fault: The other pump operates according to

the standard control of the master.

– PLR-Modul: An PLR-Modul is necessary for the

communication between the master and slave

pumps, as well as the pump and the PLR (pump

control processor) or interface converter. This

module is fitted on a multiple plug positioned

between the two pumps in the terminal box (Fig. 2).

It is available as an accessory.

– Peak load mode: At partial load, the hydraulic

capacity is provided by one pump only. The second

pump is optimised in terms of efficiency when the

sum of the power requirements P

of both pumps

in the partial load range is lower than the power

requirements P

of two pumps one of which runs

at maximum speed and the other at a fixed speed.

Both pumps are then adjusted upwards simulta-

neously to max. speed.

– Main/reserve mode: Each of the two pumps is

capable of the design transporting capacity. The

other pump can be used in the event of the first

pump malfunctioning or following a pump swop.

Only one pump runs constantly.

– During an interruption in communication: The

slave pump runs at the last set value of the master

prior to the interruption.

Should one pump cut out, the other pump will run

alone in standard mode.

Master off: slave also switches off.

– Pump swop: Should only one pump be running

(main/reserve-, peak load or light load mode), a

pump swop occurs after 24 hours off effective

running time.

– When using a pump control processor (PLR)/inter-

face converter, the master pump must be con-

nected to the PLR.

– External Off, 0 …10 V, 24 V output: (only pumps

with P

≥ 500 W, see rating plate) connected to the

master only but work for the entire unit.

KSB Riotec 30-70 [10/19] Riotec riotec z

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