Pump Output Supplements (Percentage) For Operation With Tyfocor; Heat Source For Water/Water Heat Pumps; Groundwater - Viessmann VITOCAL 300-G Technical Manual

Design information
Volumes in PE pipes, PN 10
External Ø pipe × wall DN
thickness
mm
20 × 2.0
25 × 2.3
32 × 3.0 (2.9)
40 × 2.3
40 × 3.7
50 × 2.9
50 × 4.6
63 × 5.8
63 × 3.6

Pump output supplements (percentage) for operation with Tyfocor

Note
Circulation pump curves, see chapter "Primary pump".
Design flow rate
= ² + f (in %)
²
A water Q
Design residual head
H = H + f (in %)
A water H
Select the pump with the higher pump rates ²
Volume ratio ethylene glycol
At an operating temperature of 0 °C
– f
Q
– f
H
At an operating temperature of +2.5 °C
– f
Q
– f
H
At an operating temperature of +7.5 °C
– f
Q
– f
H

3.7 Heat source for water/water heat pumps

Groundwater

Water/water heat pumps utilise the energy content of groundwater or cooling water.
VITOCAL 300-G
(cont.)
Volume per m pipe
l
15 0.201
20 0.327
25 0.531
32 0.984
32 0.835
40 1.595
40 1.308
50 2.070
50 2.445
and H .
A A
% 25
% 7
% 5
% 7
% 5
% 6
% 5
Note
The supplements only comprise the corrections for the circulation
pumps. System curve or data corrections can be determined with the
help of technical literature or information provided by the valve manu-
facturer.
Viessmann heat transfer medium "Tyfocor" (ready-mixed for temper-
atures down to –15 °C) has a ethylene glycol volume ratio of 28.6 °%
(calculated as 30 %).
30 35
8 10
6 7
8 9
6 6
7 8
6 6
40 45
12 14
8 9
11 13
7 8
9 11
6 7
VIESMANN
3
50
17
10
16
10
13
9
43