Installation and electrical connection must be
carried out by a qualified installer, following
these instructions closely.
2.2 Description of appliance
1
Control panel
2
Side wall, right
3
Front wall
4
Air outlet grille
5
Air inlet grille
6
Fluff screen
7
Inside front wall
8
Storage blocks
9
Cover plate
10
Thermal insulation
11
Floor thermal insulation
12
Cable duct G
13
Air flow device K
E5
Heating element
M1 Blower fan
N5 Protective temperature regulator -
discharge
A1 Electronic charge regulator
V4 Operation and fault indicator
X16 Control signal adapter, 4-stage
X17 Output reducer, 4-stage
2.2.1 Method of operation
The storage blocks are heated by the heating
elements located between the storage block
rows. Charging is infinitely adjusted by means
of the charging regulator R1.
The start and end of the charging time are
determined by the electricity supply utility
(EVU) concerned.
Three integrated protective temperature
regulators (N4, N5, N6) and a safety ther-
mal cut-out (F1) prevent the appliance from
overheating. While the protective temperature
regulator switches itself off again automatically,
the safety thermal cut-out must be switched
100 % P
(Serienverdrahtung)
N
1
3
2
1
L3 L2 L1
N L3 L2 L1
3/N/PE ~ 400 V
91,6% P
N
2
3
2
1
L3 L2 L1
N L3 L2
3/N/PE ~ 400 V
83,3% P
N
3
3
2
1
L3 L2 L1
N L3 L2 L1
3/N/PE ~ 400 V
75% P
N
4
3
2
1
L3 L2 L1
L3 L2 L1
3/PE ~ 400 V
100 % P
2kW
N
5
3
2
1
L3 L2 L1
N
1/N/PE ~ 230 V
on again by a qualified installer by pressing the
button located in the middle on the safety
thermal cut-out.
The heat which is stored in this way is then
A
emitted with the help of a blower fan, and
partially also via the surface of the appliance.
In this situation, the room air is sucked in by
the fan (M1) through the air inlet grille (5)
and blown through the air ducts of the stor-
age blocks (8), causing them to be heated.
Before emerging through the air outlet grille
(4), the air, heated in this way, is mixed with
colder room air via two mixed air flaps, in or-
der to ensure that the emerging air does not
exceed the permitted maximum temperature.
The setting of the mixed air flap, and therefore
of the mixing proportions of the air, is regu-
lated by means of a bi-metallic regulator.
2.2.2Reducing the connected load
By relocating or removing bridges at the con-
nection terminals, the connected load, which
is wired at the factory to be 100%, can be
reduced in conjunction with a load degree
reduction device on the charging regulator by
3 output stages (see below).
The dimensions of the lead cross-section and
the fuses are to be selected in accordance
with the maximum possible load of the appli-
ance.
Reducing the degree of charge
Located on the electronic charge regulator
(A1) is the plug-in bridge X17, with which
the degree of charge of the storage part can
be selected in conjunction with the change-
able connection load to four settings (I, II, II or
IV). A charge degree of 100% (Position I) is
preselected at the factory.
If the plug-in bridge is plugged into another
position, this results in a reduced degree of
A1
X1
X16
X17
X1
L1
V4
X1
Types
X1
ETS 00
ETS 300
ETS 400
ETS 500
X1
ETS 600
L1
ETS 700
X15
X14
X13
Con-
nection
100 % 91,6 % 83,3 % 75 %
Output variants [kW]
8h heating elements (series)
,0
1,83
1,67
3,0
,75
,5
4,0
3,66
3,33
5,0
4,58
4,16
6,0
5,5
5,0
7,0
6,4
5,83
charge (the disconnection temperature of the
electronic charge regulator will be reduced).
2.2.3 Electronic charge regulator
Fault behaviour
The charge regulator in the appliance is set at
the factory to „Positive fault behaviour (80%
PS)"; i.e. in the event of defective charge con-
trol (such as failure of the control signal), the
appliance will receive a full charge loading.
It is possible to switch over to „Negative fault
behaviour" (no charging of the storage unit)
by replugging the plug-in bridge X16 to the
„80 % PS" position, if the appliance is con-
nected to a digital charging control unit.
Operation with charge control
The relevant parts of the instructions for
installation and use for the charging control
system are to be followed in this situation.
Control signal
The electronic charging regulator can be con-
nected to different control signals (ED) from
control units, and can therefore be integrated
into existing older systems. At the factory, the
appliance is set for an AC control signal (alter-
nating current voltage signal at the setting at
the terminals „A1 + A") with 80 % ED.
By replugging the plug-in bridge X16, other
ED signals (68/7, 37/40 %) can be selected.
This is necessary if the appliance is being inte-
grated into an already existing system which
controls the charging with one of the ED sig-
nals mentioned.
Connection to a DC control signal (X3)
If a charge control device with a DC control
signal (direct current voltage 0.91 V - 1.43 V)
is installed in the appliance, the control signal
must be connected to the control terminals
„DC A1/Z1 (positive terminal) and DC A/
X12
X11
X10
100 %
1,5
,0
,5
3,0
3,0
4,0
3,75
5,0
4,5
6,0
5,5
7,0
19