Wilo SK 602N Bedienungsanleitung

de Einbau- und Betriebsanleitung

en Installation and operating instructions

fr Notice de montage et de mise en service

it Istruzioni di montaggio, uso e manutenzione

el Οδηγίες εγκατάστασης και λειτουργίας

tr Montaj ve kullanma kılavuzu

hu Beépítési és üzemeltetési utasítás

pl Instrukcja montażu i obsługi

cs Návod k montáži a obsluze

ru Инструкция по монтажу иэксплуатации

ro Instrucţiuni de montaj şi exploatare

SK 602N, SK 622N

2 129 143-Ed.01/2012-09-Wilo

Fig. 1: Fig. 2:

Fig.3a:

Fig.3b:

∅4

130 103

110

130

113

113 ∅6

∅6

∅4

130 103

115

130

113

113 ∅6

∅6

Fig.4: a.) b.) c.)

Fig.5:

Fig.6:

Installation and operating instructions SK 602N/SK 622N 19

English

Installation and operating instructions

1 General

About this document

The language of the original operating instructions is German.

All other languages of these instructions are translations of the

original operating instructions.

These installation and operating instructions are an integral

part of the product. They must be kept readily available at the

place where the product is installed. Strict adherence to these

instructions is a precondition for the proper use and correct

operation of the product.

The installation and operating instructions correspond to the

relevant version of the product and the underlying safety regu-

lations and standards valid at the time of going to print.

EC declaration of conformity:

A copy of the EC declaration of conformity is a component of

these operating instructions.

If a technical modification is made on the designs named there

without our agreement or the declarations made in the instal-

lation and operating instructions on product/personnel safety

are not observed, this declaration loses its validity

2Safety

These operating instructions contain basic information which

must be adhered to during installation, operation and mainte-

nance. For this reason, these operating instructions must, with-

out fail, be read by the service technician and the responsible

specialist/operator before installation and commissioning.

It is not only the general safety instructions listed under the

main point “safety” that must be adhered to but also the special

safety instructions with danger symbols included under the fol-

lowing main points.

English

20 WILO SE 09/2012

2.1 Indication of instructions in the operating instructions

Symbols:

General danger symbol

Danger due to electrical voltage

NOTE

Signal words:

DANGER!

Acutely dangerous situation.

Non-observance results in death or the most serious of injuries.

WARNING!

The user can suffer (serious) injuries. 'Warning' implies that

(serious) injury to persons is probable if this note is disre-

garded.

CAUTION!

There is a risk of damaging the product/unit. 'Caution' con-

cerns possible damage to the product that could occur if this

note is disregarded.

NOTE: Useful information on handling the product. It draws

attention to possible problems.

Information that appears directly on the product, such as

• identification for connections

• rating plate

• warning sticker

must be strictly complied with and kept in legible condition.

Installation and operating instructions SK 602N/SK 622N 21

English

2.2 Safety instructions for installation and maintenance work

The safety instructions included in these installation and oper-

ating instructions, the existing national regulations for accident

prevention together with any internal working, operating and

safety regulations of the operator are to be complied with.

The operator must ensure that all installation and maintenance

work is carried out by authorised and qualified personnel, who

are sufficiently informed due to their own detailed study of the

installation and operating instructions.

Safety instructions of the installation and operating instruc-

tions for the pump are to be observed at all times when

working on the switchgear and the pump/system!

DANGER! Danger of electric shock!

Work may only be carried out on the product/unit if they are

switched off and secured against being switched on again.

Immediately on conclusion of the work, all safety and protec-

tive devices must be put back in position and/or recommis-

sioned.

2.3 Unauthorised modification and manufacture of spare parts

Unauthorised modification and manufacture of spare parts will

impair the safety of the product/personnel and will make void

the manufacturer's declarations regarding safety.

Modifications to the product are only permissible after consul-

tation with the manufacturer. Original spare parts and accesso-

ries authorised by the manufacturer ensure safety. The use of

other parts will absolve us of liability for consequential events.

English

22 WILO SE 09/2012

3 Transport and interim storage

Immediately check the product for any transit damage on

arrival. If damage is found, the necessary procedures involving

the forwarding agent must be taken within the specified period.

CAUTION! Risk of damage to property!

Incorrect transport and interim storage can cause damage to

the product.

• The switchgear must be protected against moisture and

mechanical damage caused by blows/impact.

• It must not be exposed to temperatures outside the range

–10°C to +40°C.

4 Intended use

Wall-mounted unit for the electrical connection of single-

phase and three-phase pumps with integrated thermal winding

contacts (WSK) for monitoring the winding temperature (full

motor protection). Automatic reactivation of pump after power

failure and automatic fault acknowledgement after cooling off

of the motor.

DANGER! Risk of fatal accident!

The switchgear is not protected against explosions and may

not be operated in the explosive area.

Always install the switchgear outside the explosive area.

Intended use of the pump/installation also includes following

these instructions.

Any other use is not regarded as intended use.

Installation and operating instructions SK 602N/SK 622N 23

English

5 Product information

5.1 Type key

5.3 Scope of delivery

•Switchbox,complete

• 4x M20 threaded cable connections

• Installation and operating instructions

5.4 Accessories

Accessories must be ordered separately:

• SK 601N

See the catalogue for a detailed list

SK 602N/SK 622N

SK = switchbox

602N/622N = device type

5.2 Technical data

Operating voltage 1~230 V (L, N, PE)

3~400 V (L1, L2, L3, N, PE)

Frequency 50/60 Hz

Protection class IP55

Switching capacity AC-3 1~230 V, 1 kW

3~400 V, 3 kW

3~230 V, 1.5 kW

Power dissipation SK 602N 1.93 W

Power dissipation SK 622N 2.4 W

Switching capacity SSM (SK 622N only) Max. 250 V/1 A/150 VA

Switching capacity SBM (SK 622N only) Max. 250 V/1 A/150 VA

Temperature range -10 °C to +40 °C

Housing Polycarbonate/polyamide, RAL 7035

4x punch stampings for M20

Housing dimensions (W x H x D) 130 x 130 x 110 mm (SK 602N)

130 x 130 x 115 mm (SK 622N)

English

24 WILO SE 09/2012

6 Description and function

6.1 Switchbox description

SK 602N

Includes the contactor for full motor protection tripping, the

On/Off switch, with integrated run signal light (Fig. 1, item 1),

terminals for external potential-free activation/deactivation

and terminal rail (Fig. 5).

SK 622N

Like SK 602N, but additionally with potential-free contacts for

external run signal (SBM) and fault signal (SSM), see Fig. 6, as

well as fault signal lights (Fig. 2, item 2).

Motor protection

The selection of the correct motor protection is a decisive fac-

tor for the service life and operational reliability of a circulation

pump. Motor protection switches are no longer suitable for

multi-speed pumps, since their motors have deviating rated

currents in the different stages, which require different fuses.

Motor fuse protection in Wilo pumps can be ensured by taking

the following measures:

• Blocking current-proof motors: No motor protection

required.

The pump motors are designed in such a way that current flow-

ing through the winding cannot cause any damage in the event

of overloading or blocking. This applies both to single-phase

and three-phase versions, depending on the rated motor

power.

•Pumps with full motor protection and Wilo-SK 602/622N

tripping unit or Wilo switchgear/control device

Implementation of full motor protection by means of thermal

winding contacts (WSK) within the motor winding. This applies

both to single-phase and three-phase versions, depending on

the rated motor power.

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