25
1.5
DHW output
Subject to season, the following maximum mixed water or draw-off capacities result for different cold water
temperatures (see Table 1):
ϑ
1
= Cold water inlet temperature
ϑ
2
= Mixed water temperature
ϑ
3
= Outlet temperature.
Available temperature, e.g. for:
Showering, washing hands, filling a bath, etc.
Kitchen sink and when using thermostatic valves.
ϑ
2
= 38 °C
ϑ
3
= 60 °C
kW
18
21
24
27
kW
18
21
24
27
ϑ
1
l/min *
ϑ
1
l/min *
6 °C
8.0
9.4
10.7
12.1
6 °C
4.8
5.6
6.4
7.2
10 °C
9.2
10.7
12.3
13.8
10 °C
5.2
6.0
6.9
7.7
14 °C
10.7
12.5
14.5
16.1
14 °C
5.6
6.5
7.5
8.4
Table 1
* Table values relative to a rated voltage of 400 V. The outlet volume is subject to the available supply pressure
and the available mains voltage.
1.6
Recommended settings when using a thermostatic valve
To safeguard the function of the thermostatic valves, set the instantaneous water heater to its maximum
temperature (temperature selector to the right end stop).
1.7
First aid in case of faults
• Check all fuses.
• Check taps/valves and shower heads for scaling or contamination (see also "6. Troubleshooting").
Where a contractor is required, they can better and more speedily remedy the fault if you provide them with
some of the details from the type plate(
A
18):
DDLE LCD . .
No.: . . . . . . - . . . . - . . . . . .
1.8
Maintenance and care
Maintenance work, e.g. checking the electrical safety, must only be carried out by a qualified contractor.
A damp cloth is sufficient for cleaning the casing. Do not use abrasive or corrosive cleaning agents.
1.9
Operating and installation instructions
Keep these instructions safely and pass them on to any new user, should the equipment change hands.
Let your contractor check their content in conjunction with any maintenance or repair work.
!
!
For users and contractors
Summary of Contents for DDLE LCD 18
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