Technical Data; Special Accessories - Ufesa Multitronic DE2UF18 Gebrauchs- Und Montageanleitung

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
[kW]
[V]
[A]
[mm
[l/min]
[l/min]
[l/min]
[MPa (bar)]
[Ωcm]
[MPa (bar)]
[°C]
[Ω]
124
1 2
G 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.
DE2UF18
18
400
32
] 4
2
9.9
5.4
2.6
0.025 (0.25)
≥ 1 300
1.0 (10.0)
20
≤ 0.400

Special accessories

Pipe kit BZ 45U20: for use of the continuous-flow heater
as an under sink appliance
Priority switch (load shedding relay) BZ 45L20:
for operation with a priority circuit
Mounting kit BZ 45K23: for surface mount installation
DE2UF21 DE2UF24
21 24
400 400
32 40
4 6
11.6 13.6
6.3 7.2
2.6 2.6
0.025 (0.25) 0.025 (0.25)
≥ 1 300 ≥ 1 300
1.0 (10.0) 1.0 (10.0)
20 20
≤ 0.400 ≤ 0.400
9