Wilo Star-Z 15 TT User manual

4 202 386-Ed.01 / 2015-08
Wilo-Star-Z 15 TT
Pioneering for You
en Installation and operating instructions
fr Notice de montage et de mise en service
nl Inbouw- en bedieningsvoorschriften
es Instrucciones de instalación y funcionamiento
it Istruzioni di montaggio, uso e manutenzione
pt Manual de Instalação e funcionamento
el  Οδηγίεςεγκατάστασηςκαιλειτουργίας
sv Monterings- och skötselanvisning
da Monterings- og driftsvejledning
hu Beépítési és üzemeltetési utasítás
pl  Instrukcjamontażuiobsługi
cs  Návodkmontážiaobsluze
ru  Инструкцияпомонтажуиэксплуатации
lv  Uzstādīšanasunekspluatācijasinstrukcija
sl Navodila za vgradnjo in obratovanje

4WILO SE 08/2015
English
Overview
Installation and operating instructions
1Overview
offon
Thermal disinfection
Turn the motor head or remove it.
Page 10
Connections Page 6
Valves Page 8
Connect
Page 10
Faults Page 14
The menu Page 8
Type key Page 6
To set the current time
Page 11
Set the timer function Page 12
Setting continuous operation
Page 13
Setting the temperature control
system Page 12
Switch thermal disinfection on or
off. Page 13
The red button Page 8
Electrical connection Page 11
Safety Page 5
How it works Page 7
Installation Page 9
Basic display (exit menu)
Page 9
Settings Page 11

Installation and operating instructions Wilo-Star-Z 15 TT 5
English
Safety
2Safety
About these instructions • Read through these instructions completely before attempt-
ing installation. Non-observance of the safety instructions
can result in risk of injury to persons and damage to pump/
unit.
• When the installation work is complete, pass on the instruc-
tions 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 Important safety information is identified in the instructions as
follows:
Qualification The pump must only be installed by qualified personnel. The
power may only be connected by qualified personnel.
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/Part 1
• 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 that has occurred in transit immediately.
Despatch the pump in the original packing only.
Danger: Indicates a danger to life due to electrical voltage.
Warning: Indicates possible danger to life or risk of injury.
Caution: Indicates possible risks to the pump or other
items.
Note: Highlights tips and information.

6WILO SE 08/2015
English
Technical data
Electricity 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 must be protected against drips with IP 42 protec-
tion. Protect the pump against water spray. Do not immerse in
water or other fluids.
3 Technical data
3.1 Type key
3.2 Connections
3.3 Data
See name plate or Wilo catalogue for further information.
Star-Z Series: Standard drinking water circulation pump, glandless
pump
15 Nominal width of the connecting pipe (mm)
TT Timer, thermostat
Star-Z 15 TT Screwed connection: 20 (R1)
Star-Z 15 TT
Mains voltage 1 ~ 230 V / 50 Hz
Protection class IP 42
Nominal width of connecting
pipe R1
Installation length 140 mm
Max. admissible operating
pressure 10 bar (1000 kPa)
Permitted fluid temperature
range 2 °C to 65 °C,
in short-term operation up to 2 hours 70 °C

Installation and operating instructions Wilo-Star-Z 15 TT 7
English
How it works
3.4 Scope of supply
1 Pump, ready for connection, with 1.8 m cable and shock-proof
power plug
2 Thermal insulation shell
32flatgaskets
4 Installation and operating instructions (not illustrated)
4Howitworks
4.1 Application
This circulator is suitable for drinking water only.
4.2 Functions
Timer function Up to 3 switch-on/switch-off times can be programmed with the
timer function.
Works setting: 24 hours continuous operation
Temperature control system The temperature control system keeps the water in the return
circuit at the set temperature. To achieve this, the pump is
switched on and off automatically.
This function ensures that
• from a set temperature of more than 55 °C, the danger of
germs forming in the circulation system is reduced
(DVGW requirement),
• lime deposits are reduced,
• the power consumption is reduced.
Works setting: temperature control system switched off.
Thermal disinfection The boiler heats up periodically to approximately 70 °C for ther-
mal disinfection purposes. If the thermal disinfection function is
activated, the pump recognises this from an increase in temper-
ature to more than 68 °C. Irrespective of the timer function, it
then runs continuously for approximately 2 hours and then
switches off again.
1
3
2
Note: The timer function and temperature control system
can be operated together. The timer takes priority. If both func-
tions are activated, there is no temperature control during the
switch-off period.

8WILO SE 08/2015
English
How it works
Works setting: Thermal disinfection switched off.
Protection in the event of
power failure
If there is a power failure, the pump settings will be retained for
up to 3 hours.
When first installed, this is only guaranteed after an operating
time of 24 hours.
Valves The pump is equipped with a non-return valve (1) on the dis-
charge side and with a stop valve (2) on the intake side.
To replace the motor head (3), simply close the stop valve at the
rotating slot (4). The motor head can then simply be unscrewed
Page 10.
Blocking protection If the pump is switched off via the timer function, it switches on
automatically for 10 seconds every 60 minutes. This automatic
function cannot be switched on or off.
4.3 The menu
The red button All menu settings are made using the red button:
Note: A learning phase starts after the thermal disinfection
function is activated.
In this case, the pump switches itself on for 10 minutes every
20 minutes. If the temperature increases, the time is stored and
the pump continues running until the next increase in tempera-
ture. The interval between these two temperature increases is
stored as the frequency for the thermal disinfection process.
Changes in the times are recognised automatically.
1
3
2
4
• Press for > 5 seconds
Call up the menu.
• Press briefly
Select menu items and confirm the para-
meters input.
•Turn
Set menu items and set parameters.
5 sec.
5 sec.

Installation and operating instructions Wilo-Star-Z 15 TT 9
English
Installation
Symbols The following symbols are displayed in the menu:
5 Installation
5.1 Mechanical installation
Installation site Choose a weatherproof, frost-free, dust-free and well-venti-
lated room for the installation. Make sure that the installation site
is easily accessible.
•Menu clock
Set the current time
•Menu timer function
Set the parameters.
- Set the 3 possible switch-on times.
- Set the 3 possible switch-off times.
- Timer function switched off.
- Timer function switched on.
•Menu temperature control
Set the parameters.
- Switch thermal disinfection on/off.
•Basic display (exit menu)
The following are displayed alternately on
the basic display:
- time and set temperature of the tempera-
ture control system.
- Thermal disinfection ON (does not appear
if the thermal disinfection is switched off)
-
11:30
65 °C
Danger: Before starting work, make sure that the pump
has been disconnected from the power supply.
Caution: Dirt can cause pump failure. Flush the pipe sys-
tem before installation.

10 WILO SE 08/2015
English
Installation
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 illustrated in
(Fig. A).
The arrow on the back of the housing indicates the direction
of flow.
Turn the motor head or
remove it.
3. Undo the cap nut - unscrew it completely if necessary.
4. Turn the motor head so that the cable screw connection
points downwards.
5. Tighten the cap nut again.
Open the stop valve 6. Turn the slot (1) with a screwdriver so that it is parallel to the
direction of flow.
7. Fit the thermal insulation shell.
Connect 8. Connect the pipework.
Note: The stop valve and non-return valve are already
installed. No other stop valves are necessary.
A
B
Caution: Do not damage the housing and seal. Replace
damaged seal.
Caution: If the cable screw connection is in the wrong
position, water can penetrate into the pump and destroy the
motor or the electronics.
1
Note: To close the slot, position it so that it lies across the
direction of flow.
Caution: In the case of the versions with check valve and
non-return valve, these are already pre-assembled with a tight-
ening 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 turn-
ing!

Installation and operating instructions Wilo-Star-Z 15 TT 11
English
Settings
5.2 Electrical connection
The pump is fitted with a cable and shock-proof power plug so
that it is ready to connect. Proceed as follows if the connecting
cable has to be changed:
1. Install a permanent connecting cable with an o.d. of 5-8 mm,
complete with plug device or all-pole switch (with a contact
opening width of at least 3 mm).
2. Open the terminal 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 conductor, earth
5. Firmly tighten the cable connection.
6. Close the terminal box.
7. Set parameters Page 11.
5.3 Filling and ventilation
1. Fill the system.
2. The pump vents automatically. Thepumpwill not be damaged
if it runs dry briefly.
6 Settings
6.1 To set the current time
Danger: Only a qualified electrician may work on the elec-
trical connection. Before connecting, make sure that the con-
necting cable is dead.
Note: So that the pump functions can be fully used, the
pump needs a permanent power supply. Do not connect the
pump to a boiler control system.
1.
2. Select clock (flashes). +
3. Set the hours. +
4. Set the minutes. +
5. Select the basic display. +
5 sec.
5 sec.
12:
:45

12 WILO SE 08/2015
English
Settings
6.2 Set the timer function
6.3 Setting the temperature control system
Note: There is no automatic summer/winter time switch-
over.
1.
2. Select timer function (flashes). +
3. Select (flashes). +
4. Set hours for the first switch-on
time.
Means: timer switched off. +
5. Setminutes forthe firstswitch-on
time.
6. Set hours for the first switch-off
time.
7. Set minutes for the first switch-
off time.
Warns against a non-DVGW compliant setting
and appears if the switch-off time is more than
8hours.
8. Repeat steps 4 to 7 for switch-on and switch-off
times 2 and 3.
9. Select the basic display. +
5 sec.
5 sec.
-- : --
AA2
1.
2. Select control system (flashes). +
3. Set temperature.
Selection range 40-70 °C.
Means that the temperature con-
trol system is switched off.
The pump continues to run
independently of the return
temperature.
+
5 sec.
5 sec.
65 °C
On