Swimming Pool Water Heating; Hydraulic Connection, Swimming Pool - Viessmann VITOCAL 300-G Technical Manual

Design information
List for selecting cooling heat exchanger for brine/water heat pump at brine 10/13 °C, cooling system 20/12 °C
Heat pump
Type
Single stage heat pump
BW 121
BW 129
BW 145
Two-stage, both stages with the same output
BW+BWS 121+121
BW+BWS 129+129
BW+BWS 145+145
Two-stage, stages with different output
BW+BWS 121+129
BW+BWS 121+145
BW+BWS 129+145
Water/water heat pumps
3
14 °C
A
10 °C
A Cooling circuit primary side (water)
B Cooling circuit secondary side (water)
List for selecting cooling heat exchanger for water/water heat pump at groundwater 10/14 °C, cooling system 22/12 °C
Heat pump Refrigerating
capacity
Type kW
Single stage heat pump
WW 121
WW 129
WW 145
Two-stage, both stages with the same output
WW+BWS
121+121
WW+BWS
129+129
WW+BWS
145+145
Two-stage, stages with different output
WW+BWS
121+129
WW+BWS
121+145
WW+BWS
129+145

3.13 Swimming pool water heating

Hydraulic connection, swimming pool

Swimming pool water heating is effected hydraulically via the change-
over of a second three-way diverter valve (accessory).
VIESMANN
56
(cont.)
Refrigerating Flow rate, cooling circuit
capacity Primary side (brine)
kW
m 3 /h
17.5
23.8
35
35
47.6
70
41.3
52.5
58.8
22 °C
B
12 °C
Flow rate, cooling circuit
Primary side
(water)
m 3 /h
23.7 5.01
31.4 6.75
48.9 10.52
47.4 10.2
62.8 13.52
97.8 21.04
55.1 11.85
72.6 15.62
80.3 17.27
Pressure drop, cooling circuit
Secondary side Primary side
(water) (brine)
kPa
m 3 /h
5.42 1.89
7.38 2.56
10.85 3.77
10.85 3.77
14.76 5.13
21.7 7.54
12.8 4.45
16.27 5.66
18.23 6.33
Pressure drop, cooling circuit
Secondary side Primary side
(water) (water)
kPa
m 3 /h
2.04
2.71
4.22
4.09
5.41
8.43
4.75
6.26
6.92
If the temperature falls below the value set at the swimming pool ther-
mostat (accessory), a demand signal is sent to the heat pump control
unit via the external extension H1 (accessory). In the delivered condi-
tion, central heating and DHW heating have priority over swimming
pool water heating.
Part no.
Secondary
side (water)
kPa
30 5
30 5
30 7
30 5
30 5
30 5
30 5
30 5
30 5
Part no.
Secondary side
(water)
kPa
30 7
30 7
30 7
30 7
30 7
30 7
30 7
30 7
30 7
VITOCAL 300-G
7438 712
7438 713
738 714
7438 714
7438 717
7438 719
7438 715
7438 716
7438 718
7438 703
7438 704
7438 705
7438 706
7438 709
7438 711
7438 707
7438 708
7438 710