Stiebel Eltron DHM 6 [10/22] Fault eliminatio
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Stiebel Eltron DHM 6 [10/22] Fault eliminatio

Stiebel Eltron DHM 4 [10/22] Fault eliminatio
10
3. Fault elimination by the user
Table 3
4. Fault elimination by the qualied installer
Table 4
2.12 Technical data (thedataontheunitidenticationplateareapplicable)
Table 1
Type DHM 3 DHM 4 DHM 6
Design closed (pressurized) closed (pressurized) closed (pressurized)
Configuration under-sink • • •
Reated pressure MPa 1 1 1
T-piece with pressure hose • • •
Rated capacity l 0.1 0.1 0.1
Weight kg 1.4 1.4 1.4
Rated power by 230 V kW 3.5 4.4 5.7
Maximum electrical impendance Z
max
mW
– – 377
Rated voltage 1/N/PE ~ ... V 230 230 230
Rated current A 15 19 25
Hot water output ∆ϑ = 25 K
l/min 2.0 2.5 3.3
Jet regulator SR 3 • • –
Jet regulator SR 5 – – •
Flow rate „ON“ > l/min 1.6 2.0 2.6
Flow rate „OFF“ < l/min 1.1 1.4 1.7
Automatic flow regulation l/min 2.2 2.8 4.3
Pressure drop (during switch-on flow) MPa 0.05 0.06 0.08
Max. inlet temperature °C 25 25 25
Protection class in accordance with
DIN EN 60335
1 1 1
Protection mode in accordance with EN 60529 IP 25 IP 25 IP 25
Test mark, see unit identification plate • • •
Water connections G 3/8 (surface installation) • • •
Heating system - bare-wire 1100 Ωcm
1)
• • •
Area of use: low-lime and limy water • • •
Fault
Cause
Remedy
Flow too weak
Jet regulator furred or soiled.
Clean or if necessary renew the fitting jet regu-
lator (see „2.11 Special accessories“).
Filter soiled.
Clean the filter in the cold water inlet
A
(2)
after shutting off the water supply.
Heating fails to switch on / no hot water.
No electrical power.
Check the fuse (house installation).
Heating system defective.
Measure heating system resistance, if necessary
exchange the unit.
The pressure limiter has released
Determine and eliminate the cause for the fault.
Disconnect from power and relieve the pressu-
re. Reactivate pressure limiter
E
(a).
Fault Cause Remedy
No hot water despite fully opened hot water
fitting.
No electrical power. Check the fuses in the house installation.
The turn on flow rate needed to switch on the
heating power has not been reached. Soiling or
furring of the jet regulator.
Clean or if necessary renew the jet regulator
(see „2.11 Special accessories“).
Designation as Areas of application for different water analysis reference temperatures
Standard
at 15 °C at 20 °C at 25 °C
resistance
conductivity
conductivity
Ωcm
mS/m
µS/cm
≥1100
≤90,9
≤909
≥ 970
≤ 103
≤ 1030
≥ 900
≤ 111
≤ 1110
Table 2
1) Specic electrical conductivity und specic electrical resistance

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