Technical Data - Bosch ComfortElectronic RDE 1821415 Installation And Operating Instructions Manual

Startup/additional information
(Figure VI)
The device is compliant to IEC 61000-3-12.
First start-up
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 re-
duced flow-rate, remove the perlator, shower head or
similar before start and repeat the process.
Remove the flow-rate limiter (Figure A) with low
water pressure.
Explain the operation of the continuous-flow heater to
the user.

Technical data

Rated output
Rated voltage
Fuse protection
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
Start-up flow pressure **
Application area in water
specific electric resistance at 15 °C
Rated pressure
Maximum permissible supply temperature
Maximum mains impedance at connection point
Energy efficiency class
Load profile
Annual energy consumption
Daily energy consumption
Sound power level
Hot water heating energy efficiency
* Larger cable cross-sections may be required depending on the connection configuration.
** The pressure loss on the mixer must also be added.
Robert Bosch Hausgeräte GmbH
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
(Figure A).
Priority circuit for the combination with electrical
storage heaters (Figure B):
For operation with a priority circuit, a special load shed-
ding relay BZ 45L21 (special accessory) is required.
Other existing load shedding relays, with the exception
of electronic load shedding relays, may malfunction.
The control electronics must be coded when operated
with a load shedding relay (Figure C).
Status display on the appliance (Figure D)
LED
Off
Lights up
Slow flash (1/s)
Fast flash (4/s)
kW
V
A
mm 2
l/min
l/min
l/min
MPa (bar)
Ωcm
MPa (bar)
°C
Ω
kWh
kWh
dB
%
English | 11
Appliance status
Off
Ready
Appliance is heating
Desired water temperature is
not reached (water flow too
high for appliance rating).
RDE 1821415
0.025 (0.25)
≥ 1 300
1.0 (10.0)
≤ 0.244
9 001 042 048 | (15.6.15)
18
21
400
32
4
9.9
11.6
5.4
6.3
2.6
55
A
S
484
2.235
15
38.1