Further Hydraulic Data; Water Quality; Heating Water - Viessmann VITOCAL Series Technical Manual

Design information
Pipework volume
Pipe
Copper pipe
Threaded pipes
Composite pipes
Hydraulic connection lines
Note
If the heat pump is also used for cooling, the heating water flow and
heating water return must be thermally insulated with vapour diffu-
sion-proof material.

Further hydraulic data

Circulation pump
Residual heads with integral circulation
pump

7.10 Water quality

Heating water

Unsuitable fill and top-up water increases the level of deposits and
corrosion. This can lead to system damage.
Hard water can also cause damage to the instantaneous heating
water heater in particular.
Observe VDI 2035 regarding quality and amount of heating water,
including fill and top-up water.
7
VIESMANN
122
(cont.)
Nominal diameter
DN 25
DN 32
DN 40
DN 50
DN 60
1
1 ¼
1 ½
2
DN 25
DN 32
DN 40
DN 50
DN 32
DN 40
Factory-fitted
See page 55.
Dimension x wall thick-
ness in mm
33.7 x 3.25
42.4 x 3.25
48.3 x 3.25
60.3 x 3.65
40 x 3.5
50 x 4.0
63 x 6.0
40 x 3.7
50 x 4.6
■ Flush the heating system thoroughly before filling.
■ Only fill with water of potable quality.
■ Only fill and operate appliances that have an instantaneous heat-
ing water heater with softened water.
Volume in l/m
28 x 1 0.53
35 x 1 0.84
42 x 1 1.23
54 x 2 2.04
64 x 2 2.83
0.58
1.01
1.37
2.21
32 x 3 0.53
0.86
1.39
2.04
0.84
1.31
VITOCAL