Normal Maintenance; Technical Data; Dimensions; Wiring Diagram - Stiebel Eltron DHC 3-1 Utilisation Et Installation

INSTALLATION

NORMAL MAINTENANCE

10. Normal maintenance
STIEBEL ELTRON DHC tankless heaters are designed for a very long
service life. Actual life expectancy will vary with water quality
and use. To ensure consistent water flow, it is recommended to
periodically remove scale and dirt that may build up at the
aerator of the faucet or in the shower head. Also, the DHC has
a built in filter screen that should be cleaned from time to time.
In order to do this, turn off the cold water supply at the
isolating valve and remove the ground wire. Twist cold water
supply tube counterclock wise by 90° and pull towards bottom of
unit. Clean screen and put the screen, the cold water supply
tube and the ground wire back into their original position.
Please be sure that the ground wire is reinstalled and that
ground screw is securely tightened after this procedure.
Note:
Other than the filter screen, the DHC does not contain any
parts serviceable by the lay person. In case of malfunction
please contact a licensed plumber or electrician.

11. Technical Data

11.1 Dimensions

b01
c06 c06 c01 c01
100 (3.94")
200 (7.88")
b01 electrical supply cable
c01 cold water connection
c06 hot water connection
8 | DHC
38 (1.5")
110 (4.33")
1/2" NPT
1/2" NPT

11.2 Wiring diagram

DHC 3-2, DHC 4-2, DHC 5-2
A 2/GND ~ 208 / 240 V
DHC 4-3
B 1/N/GND ~ 277 V
V
A
B
L L
N L
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