Technical Data - Bosch JUNKERS UNIDOMO ELAFLUX ED 18-2 E Installation Instructions Manual

If the continuous-flow heater does not have sufficient
A
water flow due to low water line pressure in your do-
mestic plumbing system, remove the flow-rate
limiter.
Priority circuit for the combination with electrical
B
storage heaters:
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
malfunction.
The control electronics must be coded when operated
C
with a load shedding relay.

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
* The pressure loss on the mixer must also be added.
236
20
100
en
ED 18-2 E
[kW] 18
[V] 400
[A] 32
[mm 2 ] 4
[l/min] 9.9
[l/min] 5.4
[l/min] 2.6
[MPa (bar)] 0.025 (0.25)
[Ωcm] ≥ 1 300
[MPa (bar)] 1.0 (10.0)
[°C] 20
[Ω] ≤ 0.400
124
G 1 2 A
137
Status display on the appliance
D
LED Appliance status
Off Off
Lights up Ready
Slow flash (1/s) Appliance is heating
Fast flash (4/s) Desired water temperature is not
reached (water flow too high for
appliance rating).
The filter upstream from the check valve in the cold
E
water supply inlet is clogged.
Remove the filter and either clean it or descale it.
See Figure E 1–3.
ED 21-2 E
21
400
32
4
11.6
6.3
2.6
0.025 (0.25)
≥ 1 300
1.0 (10.0)
20
≤ 0.400
ED 24-2 E
24
400
40
6
13.6
7.2
2.6
0.025 (0.25)
≥ 1 300
1.0 (10.0)
20
≤ 0.400
9