STIEBEL ELTRON DHE 18/21/24 User Manual

www.stiebel-eltron.com DHE | 97
INSTALLATION
Maintenance
ENGLISH
16. Maintenance
WARNING Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
This appliance contains capacitors which are discharged
when disconnected from the power supply. The capacitor
discharge voltage may briefly exceed60VDC.
Draining the appliance
The appliance can be drained for maintenance work.
WARNING Burns
Hot water may escape when you drain the appliance.
 Close the 3-way ball shut-off valve or the shut-off valve in the
cold water inlet line.
 Open all draw-off valves.
 Undo the pipe connections from the appliance.
 Store the dismantled appliance free from the risk of frost, as
water residues remaining inside the appliance can freeze and
cause damage.
Clean strainer
If the strainer in the threaded cold water fitting is dirty, clean it.
Close the 3-way ball shut-off valve or the shut-off valve in the
cold water inlet line before removing, cleaning and refitting the
strainer.

STIEBEL ELTRON DHE 18/21/24 Specifications

General

Type	Tankless (instantaneous)
Fuel type	Electric
Boiler system	Solo boiler system
Product color	White
Heater location	-
Placement supported	Vertical
International Protection (IP) code	IP25
Efficiency	39 %
Noise level	15 dB
Maximum power	24000 W
Thermostat range	20 - 60 °C
Domestic Hot Water (DHW) flow	- l/min
AC input voltage	400 V
AC input frequency	50 - 60 Hz
Energy efficiency scale	A+ to F
Annual energy consumption	476 kWh
Built-in display	Yes

Weight and Dimensions

Depth	116 mm
Width	225 mm
Height	466 mm
Weight	3100 g