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Hot water flowrate
Up to the appliance’s max. power limit, the instantaneous water heater
supplies the set hot water temperature regardless of the water flowrate
selected.
If the hot water temperature is not attained when the hot water valve
is fully opened, more water flows than can be heated by the
appliance power. In this case, the hot water tap must be slightly
closed.
Because of the different inlet temperatures, the hot water output varies
depending on the season.
The following outlet flowrates for bath or shower water (40°C) or washbasin/
sink water (55°C) are attained at the inlet temperatures of 6°C, 10°C,
and 14°C.
Care and maintenance of the appliance
Clean the plastic housing as necessary with a damp cloth and dilute soap
solution. Never use any abrasive, scouring, and solvent-containing detergents.
The instantaneous water heater generally needs no maintenance. Regular
inspection of the appliance by a trained engineer will ensure its operational
reliability and prolong its service life.
Scale deposits in the outlet of fittings reduce the water flowrate. The air
bubblers of the fittings or hand shower head must therefore be cleaned from
time to time.
Cold
water
tempe
rature
°C
Outlet temperature
40°C
Outlet temperature
55°C
6
10
14
18 kW
l/min
7,6
8,6
(*8)
9,9
(*8)
21 kW
l/min
8,8
10
(*9)
11,6
(*9)
24 kW
l/min
10,1
11,5
(*10)
13,2
(*10)
18 kW
l/min
5,3
5,7
6,3
21 kW
l/min
6,1
6,7
7,3
24 kW
l/min
7
7,6
8,4
(*) limited to this figure by the built-in flow limiter