15
Installation - for contractors
15.6
Descaling
»
Remove the flanged immersion heater.
» Carefully tap the heating element to remove larger
limescale deposits and immerse the heating element
in descaling agent. Never treat the cylinder surface
or the protective anode with descaling agents.
15.7
Checking the protective anode
»
Check the protective anode initially after the first
year. For this, remove the flanged immersion heat
-
er; see chapter „Removing the flanged immersion
heater and protective anode“. Replace the protective
anode if worn.
» Afterwards determine the time intervals at which fur-
ther checks should be carried out.
15.8
Replacing the power cable
»
The power cable must be replaced by a qualified
electrician with the original spare part (part no.
288860)
.
16.
Specification
16.1
Dimensions and connections
1
2
3
302
100
200
302
450 480
90
G 1/2 A
G 3/8 A
26
_0
2_0
6_0
18
7
1 Hot water connection (red)
2 Cold water connection (blue)
3 Reducer G 1/2“ - G 3/8“ (male)
16.2
Wiring diagram
1/N/PE ~ 230 V
R
A
L
N
1
2
3
4
5
6
26
_0
2_0
6_00
91
1 Terminal
2 High limit safety cut-out
3 Thermostat
4 ON/OFF indicator
5 Heating element
6 Cylinder
R Resistance 560
Ω
A Protective anode
16.3
Data table
Model
Sealed unvented
water heater
Type
EWH 15 mini U
Part number
229731
Application
Undersink
Operating details
Nominal capacity
l
15
Permissible operating pressure with
pressurised connection
unpressurised connection
MPa
MPa
0.6
0
Mixed water volume 40 °C (10 °C / 80 °C) l
25.6
Heat-up time (12 °C / 80 °C)
min
36
Rated output
kW
2.0
Power connection
V
1/N/PE ~ 230
Approx. temperature setting
Minimum
Maximum
°C
°C
7
80
Dimensions and weights
Height
mm
480
Width
mm
302
Depth
mm
302
Water connection (male thread)
G 1/2" (male) -
G 3/8" (male)
Length of power cable
mm
700
Approx. weight
kg
9.0
Approx. wet weight
kg
24.0
16.3.1
Country-specific approvals and certifications
Test symbols can be seen on the type plate.
16.4
Extreme operating and fault conditions
In case of faults, a peak temperature up to 95 °C may
briefly occur in the system.
Summary of Contents for 229731
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Page 17: ...17 Notes ...
Page 33: ...33 Notities ...
Page 41: ...41 Notatki ...
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