E-Tech E-Tech W 09 User manual

664Y6500 • B
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INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
09 - 15 - 22 - 28 - 36
Single & Tri Phase

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TABLE OF CONTENTS
WARNINGS.......................................................................................................................3
Who should read these instructions .....................................................................................................................................3
Symbols ............................................................................................................................................................................................3
Recommendations.......................................................................................................................................................................3
Applicable standards ..................................................................................................................................................................3
Important notes ............................................................................................................................................................................3
Manual handling instructions..................................................................................................................................................3
Removing the boiler from the packaging...........................................................................................................................3
INTRODUCTION..............................................................................................................4
Description of the specications............................................................................................................................................4
User data ..........................................................................................................................................................................................6
Setting up ........................................................................................................................................................................................6
Optional internal time clock.....................................................................................................................................................6
Pressure in the heating system ...............................................................................................................................................6
TECHNICAL CHARACTERISTICS....................................................................................7
Electrical Characteristics............................................................................................................................................................7
Main Characteristics ....................................................................................................................................................................7
Electric data of model 09 Single Phase ................................................................................................................................8
Electric data of model 09 Tri Phase........................................................................................................................................8
Electric data of model 15 Single Phase.................................................................................................................................8
Electric data of model 15 Tri Phase ........................................................................................................................................8
Electric data of model 22 Tri Phase........................................................................................................................................9
Electric data of model 28 Tri Phase........................................................................................................................................9
Electric data of model 36 Tri Phase........................................................................................................................................9
I NS TAL L ATI ON ..............................................................................................................10
Dimensions ...................................................................................................................................................................................10
Installation room.........................................................................................................................................................................10
Disassembling..............................................................................................................................................................................11
Heating connection...................................................................................................................................................................12
Heating connection + dHW : “Y” PLAN...............................................................................................................................12
Heating connection + dHW : “S” PLAN ...............................................................................................................................12
Connecting the power supply...............................................................................................................................................13
Connecting the electrical Accessories................................................................................................................................14
Sizing of supply wires................................................................................................................................................................15
Control wiring diagram : E-Tech W 09 - 15 Single phase..............................................................................................16
Power wiring diagram : E-Tech W 09 - 15 Single phase................................................................................................17
Control wiring diagram : E-Tech W 09 - 15 Tri Phase......................................................................................................18
Power wiring diagram : E-Tech W 09 - 15 Tri Phase........................................................................................................19
Control wiring diagram : E-Tech W 22 Tri Phase............................................................................................................. 20
Power wiring diagram : E-Tech W 22 Tri Phase ................................................................................................................21
Control wiring diagram : E-Tech W 28 Tri Phase............................................................................................................. 22
Power wiring diagram : E-Tech W 28 Tri Phase ............................................................................................................... 23
Control wiring diagram : E-Tech W 36 Tri Phase..............................................................................................................24
Power wiring diagram : E-Tech W 36 Tri Phase ............................................................................................................... 25
Honeywell sundial wiring diagrams : S plan ................................................................................................................... 26
Honeywell sundial wiring diagrams : Y plan ....................................................................................................................27
COMMISSIONING AND MAINTENANCE .....................................................................28
Commissioning - water............................................................................................................................................................ 28
Commissioning - electrical..................................................................................................................................................... 28
Starting the boiler ..................................................................................................................................................................... 28
Maintenance................................................................................................................................................................................ 28
REMOVAL THE HEATING ELEMENTS ...........................................................................29

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WARNINGS
WHO SHOULD READ THESE INSTRUCTIONS
These instructions should be read by:
- The specifying engineer
- The installer
- The user
- The service engineer
SYMBOLS
RECOMMENDATIONS
• These instructions are an integral part of the equipment to
which they refer and the user must be provided with a copy.
• The product must be installed and serviced by qualified
engineers, in compliance with current standards.
• The manufacturer cannot accept liability for any damage
resulting from incorrect installation or from the use of
components or fittings not specified by the manufacturer.
• Any failure to follow instructions relating to tests and test
procedures may result in personal injury or risks of pollution.
• It is important to switch the boiler off before carrying out any
work.
• There are no user parts inside the control panel.
Essential instruction for the safety of persons
and the environment.
Danger of electrocution.
Essential instruction for the correct operation
of the installation.
REMOVING THE BOILER FROM THE PACKAGING
• Before lifting the boiler from the packaging, ensure that the
installation area is clear and that there are no obstacles making
installation difficult or unsafe.
• Lay the boiler on its back (as shown on the box side), open the box
and remove the cardboard packaging.
• Remove the polythene cover and the polystyrene corner
protection pieces.
• With help from another person, lift the boiler from the packaging
holding the lipped front edges of the side panels.
• Do not lift or carry the boiler using the top automatic air vent and
bottom pump.
RISK OF INJURY
LIFT WITH CARE
GET HELP
HEAVY
APPLIANCE
The weight of this boiler is 36Kg, which could
present a risk of injury.
Care should be taken when loading and
unloading the boiler to and from vehicles.
We recommend that the boiler be handled by
two people until it is securely fixed to a wall.
The safest route from the vehicle to the point
of installation should be carefully assessed
before unloading the boiler.
Mechanical lifting aids should be
utilised whenever possible.
MANUAL HANDLING INSTRUCTIONS
APPLICABLE STANDARDS
The Boilers have been manufactured to comply with
the following standards BS EN60335-2-35: 2002, BS
EN55014-1: 2001 and BS EN55014-2:1997.
The installation must be in accordance with the current
standards.
This appliance can be used by children aged from 8 years
and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge,
only if they have been given supervision or instruction
concerning use of the appliance in a safe way and
understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by
children unless they are aged from 8 years and above
and supervised.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory or
mental capabilities, unless used under the supervision
of a person responsible for their safety.
Children should be supervised to ensure that they do
not play with the appliance.
IMPORTANT NOTES
These instructions are an integral part of the equipment to which
they relate and must be handed to the user.
The product must be installed and serviced by qualified engineers in
accordance with the regulations in force.
The manufacturer declines all liability for any damage caused as a
result of incorrect installation or in the event of the use of appliances
or accessories that are not specified by the manufacturer.
The manufacturer reserves the right to change the
technical characteristics and specification of its products
without notice.
The availability of certain versions and their accessories
can vary following the market.
Warning : Do not switch ON if there is a possibility that the
water in heater is frozen.

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INTRODUCTION
DESCRIPTION OF THE SPECIFICATIONS
This wall hung electric boiler is available in 7 models:
• The models Single phase 09 and 15 are supplied with 230 V.
• The models Tri phase 09, 15, 22, 28 and 36 are supplied with 400 V.
The maximum power can be adjusted for all models by acting on
the switches on the control panel.
The maximum power can be adjusted for this models by acting on
the terminals bridges.
Adjustable power
MODELS MIN MAX
E-Tech W 09 - Single phase 5.6 kW 8.4 kW
E-Tech W 15 - Single phase 9.6 kW 14.4 kW
E-Tech W 22 - Tri phase 14.4 kW 21.6 kW
E-Tech W 22 - Tri phase 14.4 kW 28.8 kW
E-Tech W 36 - Tri phase 18 kW 36 kW
LINING
The boiler is protected by a steel lining that first of all undergoes a
degreasing and phosphation process before being lacquered and
burnt at 220°C.
HEATING BODY
The boiler heat exchanger is constructed from mild steel with welded
joints. It is hydraulic tested under a pressure of 4.5 bar (maximum
working pressure = 3 bar).
HEATING ELEMENTS
Immersion heaters, constructed from stainless steel Incoloy 800 and
mounted in the top of the boiler, provide the power source for the
Boiler.
EQUIPMENT
The boiler is equipped with all the necessary components to allow
direct connection to a heating system without the need for a feed
and expansion cistern. These components include; primary 10 litre
expansion vessel (suitable for a system water content of up to 160
litres), pressure and temperature gauge, safety valve, circulating
pump, low water pressure switch, control and high limit thermostats,
on/off and power level switches.
CONNECTION
The boiler is suitable for connection to most heating and hot water
systems, with a maximum working pressure of 3 bar and a maximum
temperature of 87°C. It can also be used in multiple boiler installations
allowing greater outputs to be achieved.
The boiler, and connection glands for both the main power supply
and optional external controls are provided, suitable for single or
three phase electrical supply depending upon boiler output required.
An internal 3 amp MCB is provided to protect the internal control
circuit, from which optional controls can be connected e.G. Internal
or external timeclock.
CERTIFICATION
The boilers have been manufactured to comply with the following
standards BS EN60335-2-35: 1998, BS EN55014-2:1997 and BS
EN50081-1-1: 1992.
LEGEND
1. Top cover
2. Brass pocket
3. Hand side panel
4. Cable gland
5. Control panel
6. Automatic air vent
7. Heating element
8. Heating body
9. Pressure safety valve
10. Rear panel
11. Water pressure switch
12. Expansion vessel connection
13. Heating return
14. Expansion vessel
15. Valve of expansion vessel
16. Circulating pump
17. Heating ow
18. Manual reset hight limit thermostat

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INTRODUCTION
LEGEND
1. Relay
2. Timer
3. Control terminals
4. Circuit breaker
5. Safety switch
6. Power terminals with fuse 25A or 32A
7. Power terminals
E-Tech W 09 - 15 Single PhaseE-Tech W 28 Tri Phase
E-Tech W 22 Tri Phase
E-Tech W 09 - 15 Tri PhaseE-Tech W 36 Tri Phase

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INTRODUCTION
US E R DATA
All user controls are situated on the front panel of the boiler, there are no user controls inside the boiler
casing.
The following instructions assume that the boiler has been commissioned, and that the system is filled
with water and has been fully vented.
SETTING UP
• Before switching on any electrical supplies to the boiler ensure that the combined temperature and
pressure gauge reads at least 1 bar and the control thermostat is set to the desired temperature.
• If an internal time clock is fitted ensure that this is switched on (see “Optional Internal Time Clock”)
and if any other auxiliary controls are fitted e.g. programmer, room thermostats, cylinder thermostats
etc, consult appropriate manufacturers’ instructions to switch these on.
• Switch on any local means of isolation to boiler.
• Switch the boiler on using the ON/OFF switch (the neon light on the switch should now glow).
• Turn on both power level switches - after a short period of time the boiler temperature should start
to rise, indicated by the combined temperature and pressure gauge. If the boiler fails to operate, the
overheat safety thermostat should be checked.
Access to the thermostat reset button is obtained by unscrewing (anti-clockwise) the domed button
cover on the front panel (a screwdriver is not required).The reset button can then be seen - press the
button, a click should be heard and the button is reset. If no click was heard the device is not at fault
and further investigation is required by a suitably qualified engineer.
• The internal clock or external programmer can now be set to allow on/off periods as desired.
The ON/OFF switch and 2 power level switches should be left in the ON position during normal use.
The power level switches will automatically switch on and off during normal boiler
operation, depending on boiler temperature.
• If the boiler is not in regular daily use during cold periods, it is recommended that it be fitted with a
frost sensing thermostat to override the timeclock and prevent the system from freezing.
• As with most boilers and heating appliances the casing and pipework can get hot during normal
running so the boiler must not be covered and the surrounding area must be kept clear.
OPTIONAL INTERNAL TIME CLOCK
• This operates on a 24-hour sequence. Around- the outside of the clock there are a number of white
tabs - these allow 15 minute switching times. To set a boiler cycle simply push outwards the number
of tabs required for your heating period.
Remember : Tab OUT = BOILER ON
Tab IN = BOILER OFF
The time of day is marked by an arrow on the inner part of the clock - set the outer time to coincide with
this arrow.
On the centre part of the clock there is a switch.
This has three positions :
• Switch down - time clock off
• Switch middle - time clock timed (normal position)
• Switch up - time clock on constant.
PRESSURE IN THE HEATING SYSTEM
The CH pressure must be a minimum of 1 bar and must be checked by the end user on a regular basis.
If the pressure drops under 0.5 bar, the integrated water pressure switch blocks the appliance until the
pressure in the system returns to a level above 0.8 bar.
The installer fits the system with a separate fill valve underneath the appliance. Make sure that the
appliance is powered off when filling the system. To do this, turn the on/off switch.
For more information, please ask your installer when the system is delivered.
A safety valve is provided underneath the appliance. If the system pressure exceeds 3 bars, this valve
opens and drains the water from the system. In this case, please contact your installer.
LEGEND
1. ON/OFF switch
2. Power levels switch
3. Optional internal clock or controller
4. Combined temperature and pressure gauge
5. Boiler shutdown indicator light
6. Manual reset high limit thermostat
7. Control thermostat :
1 = 15°C
2 = 30°C
3 = 45°C
4 = 60°C
5 = 80°C

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TECHNICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
ETECH W
22 Tri 28 Tri 36 Tri
Max Power kW 21.6 28.8 36
Rated voltage of the power supply V 3 x 400 3 x 400 3 x 400
Rated voltage of the control circuit V 230 230 230
Rated frequency Hz 50 50 50
Ohmic resistance of element Ohm 22 22 17.6
Heating element type kW 2 x 2.4 2 x 2.4 2 x 3.0
Number of heating elements 5 6 6
Electric protection IP 43 43 43
ETECH W
Capacity (primary) L13
Primary circuit expansion vessel volume L10
Max. working pressure bar 3
Min. working pressure bar 0,8
Max. working temperature °C 87
Hydraulic pressure drop
E-Tech W • 09 Single / Tri mbar 10
E-Tech W • 15 Single / Tri mbar 20
E-Tech W • 22 Tri mbar 45
E-Tech W • 28 Tri mbar 85
E-Tech W • 36 Tri mbar 125
Heating connection Ø 3,4” [F]
Height mm 763
Width mm 442
Depth mm 332
Weight empty kg 45
MAIN CHARACTERISTICS
ETECH W
09 15
Single Tri Single Tri
Max Power kW 8.4 8.4 14.4 14.4
Rated voltage of the power supply V 230 3 x 400 230 3 x 400
Rated voltage of the control circuit V 230 230 230 230
Rated frequency Hz 50 50 50 50
Ohmic resistance of element Ohm 37.8 37.8 22 22
Heating element type kW 2 x 1.4 2 x 1.4 2 x 2.4 2 x 2.4
Number of heating elements 3 3 3 3
Electric protection IP 43 43 43 43

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TECHNICAL CHARACTERISTICS
ELECTRIC DATA OF MODEL 09 SINGLE PHASE
STAGE CONTROL TERMINALS
1 2 TOTAL
Single Phase 8.4 kW (*)
12 12
13 13
14 14
15 15
Terminal L1 (A) 24 12 36
Terminal N (A) 24 12 36
Power (kW) 5.6 2.8 8.4
Single Phase 5.6 kW (**)
12 12
13 13
14 14
15 15
Terminal L1 (A) 12 12 24
Terminal N (A) 12 12 24
Power (kW) 2.8 2.8 5.6
ELECTRIC DATA OF MODEL 15 SINGLE PHASE
STAGE CONTROL TERMINALS
1 2 TOTAL
Single Phase 14.4 kW (*)
12 12
13 13
14 14
15 15
Terminal L1 (A) 41.6 20.8 62.4
Terminal N (A) 41.6 20.8 62.4
Power (kW) 9.6 4.8 14.4
Single Phase 9.6 kW (**)
12 12
13 13
14 14
15 15
Terminal L1 (A) 20.8 20.8 41.6
Terminal N (A) 20.8 20.8 41.6
Power (kW) 4.8 4.8 9.6
ELECTRIC DATA OF MODEL 09 TRI PHASE
STAGE
1 2 TOTAL
Tri Phase 8.4 kW
Terminal L1 (A) 6 6 12
Terminal L2 (A) 6 6 12
Terminal L3 (A) 6 6 12
Power (kW) 4.2 4.2 8.4
ELECTRIC DATA OF MODEL 15 TRI PHASE
STAGE
1 2 TOTAL
Tri phase 14.4 kW
Terminal L1 (A) 10.4 10.4 20.8
Terminal L2 (A) 10.4 10.4 20.8
Terminal L3 (A) 10.4 10.4 20.8
Power (kW) 7.2 7.2 14.4
This values are based on standard supply voltage in Europe, that is 1 x 230V for single phase and 3 x 400 Volt for tri phase.
(*) Factory configuration.
(**) Remove the shunt 12 and 13 on control wiring in order to deactivate the relay.
(***) Remove the shunt 14 and 15 on control wiring in order to deactivate the relay.

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TECHNICAL CHARACTERISTICS
ELECTRIC DATA OF MODEL 22 TRI PHASE
STAGE CONTROL TERMINALS
1 2 TOTAL
Tri phase 21.6 kW (*)
12 12
13 13
14 14
15 15
Terminal L1 (A) 20.8 10.4 31.2
Terminal L2 (A) 20.8 10.4 31.2
Terminal L3 (A) 20.8 10.4 31.2
Power (kW) 14.4 7.2 21.6
Tri phase 14.4 kW (**)
12 12
13 13
14 14
15 15
Terminal L1 (A) 10.4 10.4 20.8
Terminal L2 (A) 10.4 10.4 20.8
Terminal L3 (A) 10.4 10.4 20.8
Power (kW) 7.2 7.2 14.4
ELECTRIC DATA OF MODEL 28 TRI PHASE
STAGE CONTROL TERMINALS
1 2 TOTAL
Tri phase 28.8 kW (*)
12 12
13 13
14 14
15 15
Terminal L1 (A) 20.8 20.8 41.6
Terminal L2 (A) 20.8 20.8 41.6
Terminal L3 (A) 20.8 20.8 41.6
Power (kW) 14.4 14.4 28.8
Tri phase 21.6 kW (***)
12 12
13 13
14 14
15 15
Terminal L1 (A) 20.8 10.4 31,2
Terminal L2 (A) 20.8 10.4 31,2
Terminal L3 (A) 20.8 10.4 31,2
Power (kW) 14.4 7.2 21,6
ELECTRIC DATA OF MODEL 36 TRI PHASE
STAGE CONTROL TERMINALS
1 2 TOTAL
Tri phase 36 kW (*)
12 12
13 13
14 14
15 15
Terminal L1 (A) 26 26 52
Terminal L2 (A) 26 26 52
Terminal L3 (A) 26 26 52
Power (kW) 18 18 36
Tri phase 27 kW (***)
12 12
13 13
14 14
15 15
Terminal L1 (A) 26 13 39
Terminal L2 (A) 26 13 39
Terminal L3 (A) 26 13 39
Power (kW) 18 9 27
This values are based on standard supply voltage in Europe, that is 1 x 230V for single phase and 3 x 400 Volt for tri phase.
(*) Factory configuration.
(**) Remove the shunt 12 and 13 on control wiring in order to deactivate the relay.
(***) Remove the shunt 14 and 15 on control wiring in order to deactivate the relay.

101,6 mm
101,6 mm
48,4 mm
48,4 mm
763 mm
763 mm
442 mm 332 mm
185 mm
370 mm
105 mm
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INSTALLATION
DIMENSIONS
Min.
25 mm
Min.
400 mm
Min.
200 mm
WALL MOUNTING
• The boiler must be fixed to a non flammable
wall.
• Observing the clearances shown below, drill 2
off 14mm x 100mm holes.
• Fit the 2 bolts supplied and hang the wall
bracket.
• Fit washers and nuts
• Hang the boiler
FROST PROTECTION
the boiler is NOT fitted with frost protection. If the boiler is being installed in a position where freezing
could take place, then a suitable external frost thermostat should be fitted.
CONNECTING TO THE SYSTEM
the boiler is designed to operate on a sealed system (ie. no open vent or feed and expansion cistern)
Hot water expansion within the system is taken up by the internal 10 litre expansion vessel. This is
suitable for systems up to 160 litres capacity. If the system capacity is more than this then an additional
expansion vessel may be required.This can be fitted external to the boiler at a convenient place on the
pipework.
Please note that the circulation pump is fitted to the flow connection.
I NS TAL L ATI O N RO OM
The appliance must be positioned in such a way as to be easily accessible at all times. In addition, the
following minimum distances around the appliance must be complied with.

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INSTALLATION
DISASSEMBLING
Panel removal and access to hydraulic connections
1. Undo screws.
2. Tilt panel towards you and lift clear remove the top cover.
3. Loosen screws of the control panel.
4. Turn up the control panel.
5. Block the control panel with the screw.
A
1
2
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3
B
4
C
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INSTALLATION
HEATING CONNECTION
Limiting the maximum adjustable temperature Limiting the maximum adjustable temperature Limiting the maximum adjustable temperature
Factory setting
0 - 87°C
Floor heating
0 - 50°C
HEATING CONNECTION + DHW : “S” PLAN
60 - 87°C60 - 87°C
HEATING CONNECTION + DHW : “Y” PLAN

T1 T2 T3 T4
T1 T2 T3 T4
PE L1
230 V ~ 50 Hz
(3A)
N L1N PE
230 V ~ 50 Hz
T1 T2 T3 T4
T1 T2 T3 T4
L1PE L1
230 V ~ 50 Hz
(3A)
N L2 L3 PE
400 V ~ 50 Hz
T1 T2 T3
T1 T2 T3
L1PE L1
230 V ~ 50 Hz
(3A)
N L2 L3 PE
400 V ~ 50 Hz
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INSTALLATION
CONNECTING THE POWER SUPPLY
• This appliance must be permanently connected to fixed wiring and must be earthed.
• The wiring must be carried out by a competent person and in accordance with the current IEE Wiring Regulations.
Models E-Tech W 09 - 15 kW Single Phase Models E-Tech W 09 - 15 - 22 - 28 kW Tri Phase Model E-Tech W 36 kW Tri Phase

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INSTALLATION
CONNECTING THE ELECTRICAL ACCESSORIES
1-2 : Time clock or controller supply (optional)
3-4 : DHW kit (optional)
5-6 : Stop Bridge or time clock switch control (optional)
7-8 : Room thermostat (optional)
9-10-11 : Heating pump
12-13 : Relay K3 deactivated
1-2 : Time clock or controller supply (optional)
3-4 : DHW kit (optional)
5-6 : Stop Bridge or time clock switch control (optional)
7-8 : Room thermostat (optional)
9-10-11 : Heating pump
Models : • E-Tech W 09 - 15 kW Single Phase
• E-Tech W 22 kW Tri phase
Models : • E-Tech W 09 - 15 kW Tri Phase
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INSTALLATION
SIZING OF SUPPLY WIRES
The supply wires are sized depending of the type and current of the MCB. This last firstly sized depending
of the nominal current of the boiler. The admissible current of the supply wires depends of the ambient
temperature, the section and length of the wires, the wires insulation, the wires canalisation, the
mounting and the environment.
The following values are given for information for an ambient temperature of 30°C and a maximal
length of 5 meters. In all the cases, the installation must be in accordance with the current IEE Wiring
Regulations.
Nominal section
(mm)
Nominal current of the MCB
(A)
1.5 16
2.5 25
4 32
6 40
10 63
16 80
1-2 : Time clock or controller supply (optional)
3-4 : DHW kit (optional)
5-6 : Stop Bridge or time clock switch control (optional)
7-8 : Room thermostat (optional)
9-10-11 : Heating pump
12-13 : Relay K3 deactivated
14-15 : Relay K4 deactivated
Models : • E-Tech W 28 - 36 kW Tri Phase
TB1

t
P
2 1
P
P
2 1
7
5
6
7
8
t
P
1
t
C
2 1
12
13
1.1
1.2
2.2
1.1
1.2
2.2
A1
A2 9
11 10 4 2
1
M
3
1 2
1
PE
2
1
4
3
1.2 2.2
1.1 2.1
S2
S1
CB
PS
S3
S4
DS1
S5
K1 K3 K2
T1
K4
Br
B
Br
B
Br
B
Bk Bk
Br
Br
B
B
B
B
B
B B B B
R R RR
OrYOr Y
Y
GG Or
Br
Pk
Or Or
W
W W
B B
B Br G
Or Or
B B B
B B
B
R
Or
OrOrR
Bk
E-Tech W : 664Y6500 • B
en
16
EN
FR
NL
ES
IT
DE
PL
RU
INSTALLATION
CONTROL WIRING DIAGRAM : E-TECH W 09 - 15 SINGLE PHASE
CB : Circuit breaker
S1 : ON/OFF switch + lamp
S2 : Manual reset safety thermostat
[103°C]
PS : Low-water pressure switch
DS1 : Alarm
S3 : Control thermostat
S4 : Power switch level 1 + lamp
K1 : Power relay 1 - level 1
K3 : Power relay 2 - level 1
T1 : Timer
S5 : Power switch level 2 + lamp
K2 : Power relay 1 - level 2
K4 : Safety switch
1-2 : Time clock or controller supply (optional)
3-4 : DHW kit (optional)
5-6 : Stop Bridge or time clock switch control
(optional)
7-8 : Room thermostat (optional)
9-10-11 : Heating pump
12-13 : Relay K3 deactivated
B : Blue
Bk : Black
Br : Brown
G : Grey
Or : Orange
Pk : Pink
R : Red
W : White
Y : Yellow

1
2
1
2
1
2
1
2
1
2
1
2
N L
PE
K1 K2 K3
K4
S6
(F25A)
B B
Br Br
B B
B B B
Br Br
Br Br Br
B B B
Or
Bk
R
R
B
Bk
R
B
BB
Bk
Bk
B
Or
Bk
B
BB
Or
Or
B
R
Or
B
BB
R
B
B
Or
B
Bk
R
en
17
E-Tech W : 664Y6500 • B
EN
FR
NL
ES
IT
DE
PL
RU
INSTALLATION
POWER WIRING DIAGRAM : E-TECH W 09 - 15 SINGLE PHASE
E-Tech W 09 8.4 kW 5.6 kW
Single
Phase TB1
12 12
13 13
14 14
15 15
12 12
13 13
14 14
15 15
E-Tech W 15 14.4 kW 9.6 kW
Single
Phase TB1
12 12
13 13
14 14
15 15
12 12
13 13
14 14
15 15
S6 : Power terminals with fuse 25A
K1 : Power relay 1 - level 1
K2 : Power relay 1 - level 2
K3 : Power relay 2 - level 1
K4 : Safety switch
B : Blue
Bk : Black
Or : Orange
R : Red

t
P
2 1
P
P
2 1
7
5
6
7
8
t
P
1
t
C
2 1
1.1
1.2
2.2
1.1
1.2
2.2
A1
A2 9
11 10 4 2
1
M
3
1 2
1
PE
2
1
4
3
1.2 2.2
1.1 2.1
S2
S1
CB
PS
S3
S4
DS1
S5
K1 K2
T1
K3
Br
B
Br
B
Br
B
Bk Bk
Br
Br
B
B
B
B
B
B B B
R R RR
OrYOr Y
Y
GG Or
Br
Pk
Or Or
W
B B
B Br G
Or Or
B B B
B B
B
Or
OrOrR
Bk
E-Tech W : 664Y6500 • B
en
18
EN
FR
NL
ES
IT
DE
PL
RU
INSTALLATION
CONTROL WIRING DIAGRAM : E-TECH W 09 - 15 TRI PHASE
CB : Circuit breaker
S1 : ON/OFF switch + lamp
S2 : Manual reset safety thermostat
[103°C]
PS : Low-water pressure switch
DS1 : Alarm
S3 : Control thermostat
S4 : Power switch level 1 + lamp
K1 : Power relay 1 - level 1
T1 : Timer
S5 : Power switch level 2 + lamp
K2 : Power relay 1 - level 2
K3 : Safety switch
1-2 : Time clock or controller supply (optional)
3-4 : DHW kit (optional)
5-6 : Stop Bridge or time clock switch control
(optional)
7-8 : Room thermostat (optional)
9-10-11 : Heating pump
B : Blue
Bk : Black
Br : Brown
G : Grey
Or : Orange
Pk : Pink
R : Red
W : White
Y : Yellow

21 3
L1 L2 L3
PE
K1 K2
K3
S6
Or
Bk
R
Or
Bk
R
Bk
Or
R
Or
Bk
R
Or
Bk
R
Or
Bk
R
OrB
B B B B B
Bk
R
Or
Bk
R
en
19
E-Tech W : 664Y6500 • B
EN
FR
NL
ES
IT
DE
PL
RU
INSTALLATION
POWER WIRING DIAGRAM : E-TECH W 09 - 15 TRI PHASE
S6 : Power terminals
K1 : Power relay 1 - level 1
K2 : Power relay 1 - level 2
K3 : Safety switch
B : Blue
Bk : Black
Or : Orange
R : Red

t
P
2 1
P
P
2 1
7
5
6
7
8
t
P
1
t
C
2 1
12
13
1.1
1.2
2.2
1.1
1.2
2.2
A1
A2 9
11 10 4 2
1
M
3
1 2
1
PE
2
1
4
3
1.2 2.2
1.1 2.1
S2
S1
CB
PS
S3
S4
DS1
S5
K1 K3 K2
T1
K4
Br
B
Br
B
Br
B
Bk Bk
Br
Br
B
B
B
B
B
B B B B
R R RR
OrYOr Y
Y
GG Or
Br
Pk
Or Or
W
W W
B B
B Br G
Or Or
B B B
B B
B
R
Or
OrOrR
Bk
E-Tech W : 664Y6500 • B
en
20
EN
FR
NL
ES
IT
DE
PL
RU
INSTALLATION
CONTROL WIRING DIAGRAM : E-TECH W 22 TRI PHASE
CB : Circuit breaker
S1 : ON/OFF switch + lamp
S2 : Manual reset safety thermostat
[103°C]
PS : Low-water pressure switch
DS1 : Alarm
S3 : Control thermostat
S4 : Power switch level 1 + lamp
K1 : Power relay 1 - level 1
K3 : Power relay 2 - level 1
T1 : Timer
S5 : Power switch level 2 + lamp
K2 : Power relay 1 - level 2
K4 : Safety switch
1-2 : Time clock or controller supply (optional)
3-4 : DHW kit (optional)
5-6 : Stop Bridge or time clock switch control
(optional)
7-8 : Room thermostat (optional)
9-10-11 : Heating pump
12-13 : Relay K3 deactivated
B : Blue
Bk : Black
Br : Brown
G : Grey
Or : Orange
Pk : Pink
R : Red
W : White
Y : Yellow