WILO Star-Z 15 Industrial Water Pump User Manual

: June 3, 2024
: wilo

Table of Contents

**Overview
**Specifications
Principle of operation
Installation
Maintenance/faults
Documents / Resources

Wilo-Star-Z 15
Installation and operating instructions

**Overview

**

About these instructions

Read through these instructions completely before attempting installation. Non-observance of the safety instructions can result in a risk of injury to persons and damage to the pump/ unit.
When the installation work is complete, pass on the instructions to the end user.
Keep the instructions near the pump. They can be used as a reference if problems occur later.
We accept no liability for damage resulting from failure to follow these instructions.

Safety information
The following safety information is very important:
Danger: Indicates a danger to life due to electrical voltage.
Warning: Indicates a possible danger to life or injury.
Caution: Indicates possible risks to the pump or other items.
NOTE: Highlights tips and information.

Qualification
The pump may only be installed by qualified personnel. The power may only be connected by a qualified electrician.
Regulations
The current version of the following regulations must be observed when installing the equipment:

Accident prevention regulations
DVGW worksheet W551 (in Germany)
VDE 0370/part1
Other local regulations (e.g. IEC, VDE, etc.)

Conversion, spares
The pump must not be technically modified or converted. Only use original spares.
Transport
Unpack and check the pump and all accessories upon receipt. Report any damage in transit immediately.
Despatch the pump in the original packing only.
Power supply
There is a danger of an electric shock when dealing with electricity. Therefore:

switch off the power before working on the pump and make sure that it cannot be switched on again accidentally.
Do not kink or nip the power cable or let it come into contact with heat sources.
The pump has IP 42 drip-proof protection. Protect the pump against water spray. Do not immerse in water or other fluids.

**Specifications

**

3.1 Type key

Star-Z| Series:
Standard drinking water circulation pump, glandless pump
---|---
15| Nominal width DN of the connecting pipe (mm)
A = with shut-off valves
C = with shut-off valves
C = and ready to connect with plug clock timer
Press| with Viega crimped connection

3.2 Connections

| Star-Z 15
Screwed connection: 20 (Rp1″)
---|---
| Star-Z 15 A and Star-Z 15 C
Screwed connection: 20 (Rp1″) and shut-off valves
| Star-Z 15 APress
Viega crimped connection ∅ 15

3.3 Data

| Star-Z 15 A and Star-Z 15 C| Star-Z 15 A Press
---|---|---
Mains voltage| 1 ~ 230 V / 50 Hz
Protection class| IP 42
Nominal width of
connecting pipes| R 1/2| ∅ 15mm
Fitting length| 84 mm (type A 138 mm)| 166 mm
Maximum permissible operating pressure| 10 bar
Permitted fluid temperature range| 20°C to 65°C, in short-term operation for up to 2 hours: 70°C

See nameplate or Wilo catalog for further information
3.4 Scope of delivery

Pump
Thermal insulation shell
Sealing rings
Installation and operating instructions (not illustrated)

Principle of operation

4.1 Application
The pump is intended for pumping drinking or processing water in a circulation system.
4.2 Functions
Timing function
The Star-Z 15 C version also has a cable connection with a plug clock timer Page 20.
Valves
The Star-Z 15 C, Star-Z 15 A, and Star-Z 15 APress versions are equipped with a non-return valve (1) on the discharge side and with a stop valve (2) on the intake side.
To replace the motor head (3, it is sufficient to close the stop valve at the rotating slot (4). The motor head can then be simply unscrewed ⇒ Page 19.

Installation

5.1 Mechanical installation
Danger: Before starting work, make sure that the pump has been disconnected from the power supply.
Provide a weatherproof, frost-free, dust-free, and well-ventilated room for installation. Choose an installation site that is easily accessible.

Caution: Dirt can cause pump failure.
Flush the pipe system before installation.
NOTE: In the case of the Star-Z 15 C, Star- Z 15 A and Star-Z 15 APress versions, the stop valve, and non-return valve are pre-installed. In the case of the Star-Z 15 version, these valves have to be installed.

Prepare the installation site so that the pump can be installed without being exposed to mechanical stresses.
Choose the right installation position – only as shown in (Fig. A). The arrow on the back of the housing indicates the direction of flow.
Release the cap nut – unscrew it completely if necessary.
Caution: Do not damage the housing seal. Replace damaged seals.
Turn the motor head so that the cable screw connection points downwards.
Caution: If the position is wrong, water can penetrate and destroy the pump.
Tighten the cap nut again.
Turn slot (1) with a screwdriver so that it is parallel to the direction of flow (only in the case of the Star-Z 15 C, Star-Z 15 A, and Star-Z 15 APress versions).
NOTE: To close, turn the slot so that it is across the direction of flow.
Fit the thermal insulation shell.
Connect the pipework.
Caution: In the case of the versions with check valve and non-return valve, these are already pre-assembled with a tightening torque of 15 Nm (hand-tight). If the tightening torque is too high, this will destroy the valve screw connection and the O-ring.
When installing the valve, use a wrench to prevent it from turning!
In the case of the Star-Z 15 APress version, only use Viega pressure clamps. Other pressure clamps would destroy the pump.

5.2 Electrical connections

Danger: Only a qualified electrician is allowed to work on the electrical connection. Before making the connection, make sure that the connecting cable is dead.

Install a permanent connecting cable with a 5–8 mm outside diameter with a plug device or all-pole switch (with at least 3 mm contact opening width).
Open the connection box.
Guide the connecting cable through the cable connection and strip approximately 5 mm.
Secure the cores with the cable clips: L phase, N neutral, and earth.
Tighten the cable connection firmly.
Close the connection box.

5.3 Filling and ventilation

Fill the system.
The pump rotor space vents automatically after a short time in operation.The pump will not be damaged if it runs dry briefly.

5.4 Set the time
The timer of the Star-Z 15 C versions can be set as follows:

Turn the time selection wheel (1) in the direction of the arrow to set the current time.
Switch the timer on (2) and off (3) on the time selection wheel as required.

Maintenance/faults

To clean
Clean the outside of the pump with a lightly moistened cloth only. Do not use detergents.
To replace the motor head
Warning: When removing the motor head or pump, hot fluid may spurt out under high pressure. Allow the pump to cool down beforehand. Close the stop valves before removing the pump ⇒ Page 19.
Replacing the motor head ⇒ Page 19.
Order the service motor from the trade.

Fault	Cause	Remedy
The pump does not start.	Interruption in the power supply, short-circuit, or
defective fuses.	Has the power supply been checked by a qualified

electrician?
The timing function has been switched off automatically (Star-Z 15 C version only).| Check the plug clock timer setting.
The motor is blocked, e.g. through deposits from the water mains.| Has the pump been removed by a qualified person ⇒ Page 19?
Check that the impeller can move by turning it and rinsing out the dirt that has accumulated.
The pump makes noises.| Motor scraping, e.g. through deposits from the water mains
Running dry, too little water.| Check the shut-off valves, they must be fully
open.

NOTE : If you cannot remedy the fault, contact the trade.

EC – Declaration of conformity

Herewith, we declare that this product: Star-Z 15
in its delivered state complies with the following relevant provisions:
Electromagnetic compatibility – directive: 89/336/EWG
i.d.F/ as amended – 91/263/EWG, 92/31/EWG, 93/68/EWG
Low voltage directive – 73/23/EWG
i.d.F/ as amended: 93/68/EWG
Applied harmonized standards, in particular: EN 60335-2-51, EN 61000-3-2, EN 61000-3-3, EN 61000-6-2, EN 61000-6-4.
Dortmund, 08.12.2004

Erwin Prieß
Quality Manager WILO AG
Nortkirchenstraße 100
44263 Dortmund
Document: 2058588.1

1) EN 60335-2-51, EN 61000-3-2, EN 61000-3-3, EN 61000-6-2, EN 61000-6-4.

Erwin Prieß
Quality Manager WILO AG
Nortkirchenstraße 100
44263 Dortmund

Wilo – International (Subsidiaries)

Canada
WILO Canada Inc.
Calgary, Alberta T2A 5L4
T +1 403 2769456
bill.lowe@wilo-na.com| Croatia
WILO Hrvatska d.o.o.
10090 Zagreb
T +38 51 3430914
wilo-hrvatska@wilo.hr
---|---
Denmark
WILO Danmark A/S
2690 Karlslunde
T +45 70 253312
wilo@wilo.dk| Finland
WILO Finland OY
02330 Espoo
T +358 207401540
wilo@wilo.fi
Great Britain
WILO (U.K.) Ltd.
DE14 2WJ BurtonUpon-Trent
T +44 1283
523000
sales@wilo.co.uk| Ireland
WILO Engineering Ltd.
Limerick
T +353 61 227566
sales@wilo.ie
Switzerland
EMB Pumpen AG
4310 Rheinfelden
T +41 61 8368020
info@emb-pumpen.ch| USA
WILO-EMU USA LLC
Thomasville,
Georgia 31792
T +1 229 5840097
info@wilo-emu.com
USA
WILO USA LLC
Melrose Park, Illinois 60160
T +1 708 3389456
mike.easterley@wilo-na.com| Poland
WILO Polska Sp. z.o.o.
05-090 Raszyn
T +48 22 7026161
wilo@wilo.pl

Wilo – International (Representation offices)

Algeria
Bad Ezzouar, Dar El Beida
T +213 21 247979
chabane.hamdad@salmson.fr| Bosnia and Herzegovina
71000 Sarajevo
T +387 33 714510
zeljko.cvjetkovic@wilo.ba
---|---
Armenia
375001 Yerevan
T +374 10 544336
info@wilo.am| Georgia
0177 Tbilisi
T +995 32317813
info@wilo.ge

Wilo-Vertriebsbüros

G1 Nord
WILO AG
Vertriebsbüro Hamburg
Beim Strohhause 27
20097 Hamburg
T 040 5559490
F 040 55594949
hamburg.anfragen@wilo.de| G2 Ost
WILO AG
Vertriebsbüro Berlin
Juliusstraße 52–53
12051 Berlin-Neukölln
T 030 6289370
F 030 62893770
berlin.anfragen@wilo.de
---|---
G7 West
WILO AG
Vertriebsbüro Düsseldorf
Westring 19
40721 Hilden
T 02103 90920
F 02103 909215
duesseldorf.anfragen@wilo.de| G6 Rhein-Main
WILO AG
Vertriebsbüro Frankfurt
A den Drei Hasen 31
61440 Oberursel/Ts.
T 06171 70460
F 06171 704665
frankfurt.anfragen@wilo.de

Kompetenz-Team Kommune Bau + Bergbau
WILO EMU GmbH Heimgartenstraße 1
95030 Hof
T 09281 974-550
F 09281 974-551
Stand Januar 2008

WILO AG
Nortkirchenstraße 100
44263 Dortmund
Germany
T +49 231 4102-0
F +49 231 4102-7363
www.wilo.com

Documents / Resources

| WILO Star-Z 15 Industrial Water Pump [pdf] User Manual
Star-Z 15 Industrial Water Pump, Star-Z 15, Industrial Water Pump, Industrial Pump, Water Pump, Pump, Star-Z 15 Pump
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