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13) Insert the thermometer into the sleeve.
14) Attach the rosettes h).
15) Screw the neck flange covers f) to the
factory-fitted fastening clips.
16) Affix the type plate (supplied) to the covering.
6
Pouring output
PWD 750
Buffer tank
temperature
1
in °C
53°C
280l
48°C
190l
1. Initial buffer tank temperature above the circular plate
2. The hot water quantities are based on the mean temperature of 40 °C at a flow
rate at 15 l/min. In contrast to bath tub operation, the outlet temperature of 40
°C is not undershot at the hot water extraction point in shower operation. Cold
water inlet temperature 10 °C
7
Fresh domestic water
heating by the PWD
7.1 Description
The heat exchanger with a central flow is a spiral-shaped, coiled
heat exchanger consisting of a seamless rolled finned copper
pipe with soldered screw connections. Tube interior walls are
chemically tin-plated.
7.2 Operating range
Around the heat exchangers:
Boiler water
In the heat exchangers:
Fresh domestic water from the water pipe
Permissible operating pressure:
20 bar
Permissible operating temperature:
120 °C (operating temperatures of 60 °C should not be
exceeded if the water is very hard).
a
Hot
max
D
Type
max
Inch
mm
WT 36
650
170
1"
WT 40
600
170
3/4"
WT 50
750
170
3/4"
7.2
Pouring output
PWD 900
PWD 1250
2
Shower operation in litres
370l
520l
240l
360l
Cold
Circulation
Weight
Inch
Inch
kg
1"
-
15.0
3/4"
-
12.0
3/4"
-
17.0
EN-5
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