Junkers ELAFLUX ED 18-2 E, Инструкция по эксплуатации

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10
GB
1
) Besides the flow pressure at the instant water heater, the flow pressures at the water taps must also be taken into account.
2
) Connecting leads with a cross section of 16 mm
2
are not hose-proof (IP25), see Page 16.
Description of the appliance
The microcomputer-controlled, electronic instant water heater ED is a
pressure-operated device allowing one or several tap connections to
be supplied. The device is under full water pipe pressure.
If the appliance is operated with a supply temperature up to 25˚C ,
specific electrical water resistance should not fall below 1000
Ω
cm.
When used with preheated water up to max. 50°C ± 2°C (e.g. solar
system), electrical water resistance should not fall below 1300
Ω
cm.
Appliances with 27 kW rated capacity must not be operated with
preheated water.
An electronic flow detector switches the heater on already at a flow of
approx. 2.6 l/min and off again at
approx. 2.2 l/min.
The control unit adapts the heat output to the set outlet temperature
depending on cold water supply temperature and flow.
Technical data/description of the appliance
Type ED 18-2 E ED 21-2 E ED 24-2 E ED 27-2 E
Rated capacity at 400 V [kW] 18 21 24 27
at 380 V [kW] 16 19 22 24
Model closed
Rated overpressure [bar] 10
Weight [kg] 4,6
Safety class acc. to VDE l
VDE enclosure IP25 IP25 IP24
IP25
2
IP24
IP25
2
Approval symbol PA - IX 3850/ I
Phase effect free of phase effect according to
DIN EN 60555/VDE 0838
VDEW-approval
Water connection G 1/2
Electrical connection 380/400 V 3 ~
Field of application in different water
Supply temperature max. 25˚C:
Electric conductivity at 15˚C
[mS/m]
Specific electrical resistance
at 15˚C
[
Ω
cm]
≤
100
> 1000
≤
100
> 1000
≤
100
> 1000
≤
100
> 1000
Supply temperature max. 50˚C:
Electric conductivity at 15°C
[mS/m]
Specific electrical resistance
at 15°C
[
Ω
cm]
< 77
> 1300
< 77
> 1300
< 77
> 1300
–
–
Switch-on quantity [l/min] > 2,6
Switch-on flow pressure
1
[bar] 0.25
Flow pressure
1
at nominal power
without flow limiter [bar]
with flow limiter [bar]
0.7
1..3
0.9
1.5 1.2
1.7 1.4
2.2
Flow limitation ex works [l/min] 8 9.5 11 12
Max. supply temperature [°C] 50 ± 2 50 ± 2 50 ± 2 25
Idling consumption per day [kWh] 0.055
V
D E