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EN 61 and EN 61 Norm, die verwendet wurde: Normen, die verwendet wurden: EN 61 und EN 61 TM02 Cx. General Applications Pumped liquids Function Single-head and twin-head pumps with standard module Twin-head pumps with relay module Installation Terminal box positions Frost protection Electrical connection Single-head and twin-head pumps with standard module Twin-head pumps with relay module Frequency converter operation Start-up Speed selection Technical data Fault finding chart Single-head and twin-head pumps with standard module Twin-head pumps with relay module Disposal Thin, clean, non-aggressive and non-explosive liquids, not containing solid particles, fibres or mineral oil.

If the pump is installed in a heating system, the water should meet the requirements of accepted standards on water quality in heating systems, e. For water with a higher degree of hardness betriebsbesxhreibung directcoupled TP pump is recommended. Liquid temperature, see section 8. The pump must not be used for the transfer of inflammable liquids such as diesel oil, petrol or similar liquids. The installation and operation should betriebsbesschreibung be in accordance with local regulations and accepted codes of good practice.

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The pumps are available as single-head or twin-head pumps. All pumps incorporate a thermal overload switch in the stator. Single-head pumps are fitted with a standard module in the terminal box. Twin-head pumps are fitted with a standard module or a relay module in the terminal box.

The relay betriebsbeschreibyng can be supplied as an optional extra for single-head pumps. Applications Speed switch TM00 1. Single-phase pumps Single-phase pumps incorporate a green indicator light only: Indicator bdtriebsbeschreibung Description On The electricity supply has been switched on. Off The electricity supply has been switched off or the pump has been cut out by the thermal overload switch.

The pumps are designed to circulate liquids in heating and air-conditioning systems. The pumps can also be used in domestic hot-water systems. Indicator lights Green All pumps with relay module incorporate a green and a red indicator light. The function of the two indicator lights and the signal output is betriebsbesschreibung in the following table.

Description Indicator lights Red Off Off The electricity supply has been switched betriebsbeschreibuhg or the pump has been cut out by the thermal overload switch. On Off The electricity supply has been switched on. On On The electricity supply has been switched on. The direction of rotation is wrong. The output is activated when the pump is operating. The output is activated in case of fault.

Use this setting when the pumps are to operate alternately as duty and standby pump. By means of a selector switch the signal output can be set to activation during: The electricity supply has been switched betriebsbeschreibunb or phase missing. The pump is operating. The pump is operating, but the direction of rotation is wrong. The pump has been cut out by the thermal overload switch.

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Three operating modes are possible: Bdtriebsbeschreibung operation factory setting. The pumps operate alternately as duty and standby pump. One pump operates constantly as duty pump and the other constantly as standby pump. The pumps operate independently of each other. If the pumps are to run simultaneously, they must be set to the same speed. Otherwise the non-return flap will close off the pump running at the lowest speed.

The pump must be positioned so that persons cannot accidentally come into contact with hot surfaces of the pump. Possible terminal box positions for twin-head pumps are shown in fig. The drain holes must point downwards. Betriebsbeschrribung terminal box positions for single-head pumps are shown in fig. The positions apply to mounting in both vertical and horizontal pipes.

The terminal box must only be turned to the above positions. For standard terminal box positions, see fig. Twin-head pumps hrw in horizontal pipes must be fitted with an automatic air vent in the upper part of the pump housing, see fig.

The automatic air vent is not supplied with the pump. The technical data in section 8. TM02 4. Installation Before the screws are removed, the system must be drained or the isolating valves on either side of betriesbeschreibung pump must be closed as the pumped liquid may be scalding hot and under high pressure. Change the terminal box position as follows: Remove the four screws holding the pump head. Turn the pump head to the required position. Replace the four screws and tighten securely.

When betrriebsbeschreibung the terminal box position of twinhead pumps, it may be necessary to remove the betriegsbeschreibung connecting the two terminal boxes. It is advisable to disconnect the cable from pump 1.

Never make any connections in the pump terminal box betriebsbeschreibunf the electricity supply has been switched off. Do not start the pump until the system has been filled with liquid and vented. Furthermore, the required minimum inlet pressure must be available at the pump inlet, see page ngw When the terminal box position has been changed, the pump nameplate must be turned so that the cutout points downwards.

This allows water from a possible venting to escape. To change the nameplate position, ease the outer edge of the nrs at the cutout with a screwdriver, turn the nameplate to the new position and push it into place. Electrical connection The electrical connection and protection should be carried out in accordance with local regulations.

Nra pump must be earthed. The pump must be connected to an external mains switch with a minimum contact gap of 3 mm in all poles. The operating voltage and frequency are marked on the pump nameplate.

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Make sure that the motor is suitable for the electricity supply on which it will be used.

The thermal overload must be adjusted to the pump full-load current stated on the pump nameplate according to the speed selected, see fig. I at the end of these instructions. Earthing or neutralization can be betriebsbeschriebung for protection against indirect contact. A current- or voltage-operated earth-leakage circuit breaker can be used as extra protection.

For winding resistance check, see page The contactor must be connected to the thermal switch incorporated in the pump, terminals T1 and T2, to protect the pump against overloading at all three speeds. If the betriebsbescjreibung is also protected by means of a motor starter, this starter must be set to the current consumption of the pump at the selected speed.

The motor starter setting must be changed every time the pump speed is changed. The current consumption at the individual speeds is stated on the pump nameplate. Figures Bftriebsbeschreibung and B at the end of these instructions show the possible connections: The pumps are factory-set to alternating operation as duty and standby pump. Pump change takes place every 24 hours. Standby operation betrievsbeschreibung pump 1 as duty pump and pump 2 as standby pump.

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The selector switch of pump 2 must have been set to either fault or operating indication in this operating mode. Standby operation with pump 2 as duty pump and pump 1 as betriebsbesvhreibung pump. The selector switch of pump 1 must have been set to either fault or operating indication in this operating mode. In the case of single-pump operation, the cable between the pumps is to be removed. The pumps must be set individually and connected separately to the mains as shown in figs.

Electrical connection and setting of the selector switch when using the signal output for operating indication.

Electrical connection and setting of the selector contact when using the signal output for fault indication. In the case of betriebsbeschreiubng operation, the selector switch must be set to either fault or operating indication.

Fault or operating indication for twin-head pumps in alternating operation: If the signal output is to be used for fault or operating indication, an intermediate relay must be used. Figure H shows a single-phase pump in alternating operation with external fault indication if pump 2 or both pumps are faulty. Fault or operating indication for twin-head pumps in standby operation: If the signal output of the duty pump is to be used for fault or operating indication, an intermediate relay must be used.

If the signal output of the standby pump is to be used for fault or operating indication, proceed as shown in fig.

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