High efficiency electric boilers
37
Technical Data
E-Tech W 09
E-Tech W 15
E-Tech W 22
E-Tech W 28
28 E-Tech W 36
Single Phase
Single Phase
Tri-Phase
Tri-Phase
Tri-Phase
Output
kW
4.2 to 8.4
7.2 to 14.4
14.4 to 21.6
21.6 to 28.8
30 to 36
Supply
V
230
230
3 x 400 + N
3 x 400 + N
3 x 400 + N
Total capacity
Ltrs
13
13
13
13
13
Expansion volume
Ltrs
10
10
10
10
10
Heating connections (F)
Ø
3/4
"
3/4
"
3/4
"
3/4
"
3/4
"
Weight empty
kg
45
45
45
45
45
Primary pressure drop
mbar
10
20
45
85
125
Max. operating temp.
°C
85
85
85
85
85
Heating element
type
2 x 1.4kW
2 x 2.4kW
2 x 2.4kW
2 x 2.4kW
2 x 3kW
Number of elements
3
3
5
6
6
Maximum operating pressure Primary: 3 bar
Characteristics
Dimensions
E-Tech W
Wall mounted electric sealed
system boiler. An economical
alternative to LPG and Oil.
Available up to 15 kW for single phase supply and, where available,
three phase options up to 36 kW.
The E-Tech W is user and installer-friendly with simplified maintenance.
The control panel can be rotated to facilitate access to the water
connections. The unit is of a steel body with removable stainless steel
incoloy elements to increase the reliability and the service life of your
installation.
Benefits and Features
• No flue
• Reduced maintenance (no landlord certification)
• Modulating element input
• Can be used in modular formation
• Compatible with Honeywell S-plan and Y-plan wiring systems
• Built-in control circuit protected by internal 3 amp MCB
• Removable stainless steel incoloy immersion elements
• Stove enamelled casing
• Control panel including thermostats, combined temperature and
pressure gauge and on/off switch
• Wall mounting bracket included
• Simple connection to heating systems
• Compatible with wet radiator or underfloor heating installations
• Ease of installation - the boiler allows direct connection to a heating
system without the need for a feed and expansion tank
Easy connection to underfloor heating
In contrast with electric underfloor heating, hydraulic circuits are
compatible with multiple-energy systems (electricity, gas, fuel-oil, heat
pump, solar, etc).
This allows the user to adapt to changes in the
market and to opt for alternative sources of energy
as the need arises.
See the ACV multi-energy tanks on page 8.
High efficiency electric boilers
36
Output
modulation
(example):
E-Tech W 15
7.2 or 14.4 kW
E-Tech W 22
14.4 or 21.6 kW
T
e
m
p
e
ra
tu
re
(
°C
)
O
u
tp
u
t
(k
W
)
Output modulation
The output of the E-Tech W automatically adjusts to
heating demand thanks to the use of a two-stage
thermostat:
• The upper thermostat can be adjusted and
controls the first stage of output.
• The lower thermostat is automatically
regulated 7°C below the setpoint of the upper
thermostat. It controls the second stage of
output.
Characteristics
1.
Expansion vessel
2.
Casing
3.
Primary flow
4.
Expansion tank connection
5.
Manual reset limit thermostat
6.
Pressure switch (low water level)
7.
DHW kit connection (optional)
8.
Safety valve
9.
Primary return
1
2
3
4
5
6
7
8
9
