DE GB
19
Frost
The device should be installed in a vertical position in a room protected from frost and in the proximi-
ty of the water connections.
In case the room cannot be protected against frost, the device should not be installed in this room.
Should the device be installed in such a room, the device should be emptied before the frost danger
will occur. Do not switch on if there is a possibility that the water in the device is frozen.
Technische Daten
Electronic instant waterheater 18kW 21kW 24kW
Hydraulic instant waterheater 18kW 21kW 24kW
Electric supply 400V 3~ 50Hz 400V 3~ 50Hz 400V 3~ 50Hz
Nom. power rating 18kW 21kW 24kW
Nominal current 26A
⏛
32A 30A
⏛
32A 35A
⏛
40A
Cable size 4.0mm² 4.0mm² 6.0mm²
Flow rate (Δt=25°C) 10L/min. 11,8L/min. 13L/min.
Flow rate (Δt=35°C) 7L/min. 8,2L/min. 9,3L/min.
Heating system unvented unvented unvented
Temperature range 40°C - 75°C 40°C - 75°C 40°C - 75°C
Switch on flow rate 2,5L/min. 2,5L/min. 2,5L/min.
Max. inlet temperature 20°C 20°C 20°C
Non-usage consumption <1Wh/h <1Wh/h <1Wh/h
Protection class I I I
Type of protection IP24 IP24 IP24
Dimensions 255 x 115 x 472mm 255 x 115 x 472mm 255 x 115 x 472mm
Unit weight 4,5kg 4,5kg 4,5kg
Water connections G1/2" G1/2" G1/2"
Max. pressure water mains 0,6MPa 0,6MPa 0,6MPa
Switch on flow pressure 0,1MPa 0,1MPa 0,1MPa
Annual electricity consumption (Q
elec
)
Elex
458 kWh 461 kWh 465 kWh
Annual electricity consumption (Q
elec
)
Hydrex
447 kWh 450 kWh 456 kWh
Load profile S S S
Sound power level (L
WA
) 16 dB 16 dB 16 dB
Energy efficiency
(η
wh3
) Elex 39,8 % 39,7 % 39,6 %
Energy efficiency (
η
wh3
) Hydrex 39,9 % 39,8 % 39,7 %
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