Wilo Star-z 15 Industrial Water Pump User Manual

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

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

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

1. Pump
2. Thermal insulation shell
3. Sealing rings
4. 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.

1. Prepare the installation site so that the pump can be installed without being exposed to mechanical stresses.
2. Choose the right installation position – only as shown in (Fig. A). The arrow on the back of the housing indicates the direction of flow.
3. Release the cap nut – unscrew it completely if necessary.
   Caution: Do not damage the housing seal. Replace damaged seals.
4. 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.
5. Tighten the cap nut again.
6. 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.
7. Fit the thermal insulation shell.
8. 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.

1. 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).
2. Open the connection box.
3. Guide the connecting cable through the cable connection and strip approximately 5 mm.
4. Secure the cores with the cable clips: L phase, N neutral, and earth.
5. Tighten the cable connection firmly.
6. Close the connection box.

5.3 Filling and ventilation

1. Fill the system.
2. 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:

1. Turn the time selection wheel (1) in the direction of the arrow to set the current time.
2. 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.

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 ManagerWILO 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 ManagerWILO AG
Nortkirchenstraße 100
44263 Dortmund

Wilo – International (Subsidiaries)

Wilo – International (Representation offices)

Wilo-Vertriebsbüros

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

References

• com.vn
• E-MU - Home
• Commercial Distributor & Supply Company | North American
• 100% WIR | Crisol Holding GmbH
• Wilo pump manufacturers in your area since 1872 | Wilo
• Wilo Corporate - Pioneering for You | WILO
• Wilo - Pumpenhersteller in Ihrer Nähe seit 1872 | Wilo