M 3...7-O
Description of appliance
1. Description of appliance
This instantaneous water heater is intended to provide the economical heating of water suffi-
cient for a single outlet, i.e. handwash basin, and must be connected to a special open-outlet
EN
tap to avoid any overpressure. Appliances with a higher power rating can also be used to sup-
ply a kitchen sink.
When the hot water tap is opened, the instantaneous water heater switches itself on auto-
matically and heats the water as it passes through the appliance. It is only then that the appli-
ance uses electricity. The temperature increase depends on the flow rate.
1.1 Technical specifi cations
Type
Energy efficiency class
Capacity
Max. operating pressure
Heating system
Min. water resistance at 15 °C
Max. water inlet temperature
Rated voltage
Rated power
Rated current
Required min. cable cross-section
Hot water output at ∆t = 25 K
Switching on at
Switching off at
Approx. weight when filled with water
Protection class
Marking / Approvals
*) The declaration complies with the EU regulation No 812/2013. The product data sheet is attached at the end of this document.
1) The specific resistance can be asked for at your water distribution company. 2) Temperature increase from e. g. 15 °C to 40 °C.
1.2 Recommended open-outlet taps
SMB / LS
Art.-No. 1100-04100
1.2.1 Optional swivel outlets
LS 12
Art.-No. 0010-0052
Litre
MPa (bar)
Ωcm
1)
°C
kW
A
mm
2
2)
l/min
l/min
l/min
kg
SME
SME
Art.-No. 1100-04150
LS 20
LS 30
Art.-No. 0010-0054
Art.-No. 0010-0055
M 3-O
M 4-O
0 (0); Open outlet only!
Bare wire heating system IES ®
1~ / N / PE 230 V AC
3.5
4.4
15.2
19.1
1.5
2.5
2.0
2.5
1.3
1.8
1.0
1.4
see rating plate
18
M 6-O
M 7-O
A
*)
0.2
1100
20
2~ / PE 400 V AC
5.7
6.5
24.8
16.3
4.0
1.5
3.3
3.7
2.2
2.4
1.7
2.0
1.5
IP 25