The device is compliant to IEC 61000-3-12.
Switch on the fuses.
Setting the temperature.
Starts rinsing: Open the warm water tap and allow water
to ﬂow for at least 1 minute (ﬂow-rate at least 6 litres per
minute). Only then (for safety reasons) will the appliance
begin to heat.
Tip: Should the appliance not start because of a reduced
ﬂow-rate, remove the perlator, shower head or similar before
start and repeat the process.
Remove the ﬂow-rate limiter (see Fig. A) with low water
Explain the operation of the continuous-ﬂow heater to
If the continuous-ﬂow heater does not have sufﬁcient
water ﬂow due to low water line pressure in your do-
mestic plumbing system, remove the ﬂow-rate limiter.
Minimum conductor cross-section
Warm water ﬂow at rated output
with temperature increase from
12 °C to 38 °C
12 °C to 60 °C
Start-up ﬂow pressure *
Application area in water
speciﬁc electric resistance at 15 °C
Maximum permissible supply temperature
Maximum mains impedance at connection
* The pressure loss on the mixer must also be added
Priority circuit for the combination with electrical
For operation with a priority circuit, a special load
shedding relay BZ 45L20 (special accessory) is re-
quired. Other existing load shedding relays, with the
exception of electronic load shedding relays, may
The control electronics must be coded when operated
with a load shedding relay.
Status display on the appliance
Slow ﬂash (1/s)
Fast ﬂash (4/s)
The ﬁlter upstream from the check valve in the cold
water supply inlet is clogged.
Remove the ﬁlter and either clean it or descale it.
See Figure E 1–3.
16 / 20
≥ 1 300
Appliance is heating
Desired water temperature
is not reached (water ﬂow
too high for appliance
≥ 1 300
≥ 1 300