73
Type BW
2-stage
3-stage
352.B114 352.B132 352.B156 353.B172
353.B198
Primary circuit
(brine)
Spread
K
3
3
3
3
3
Frost protection limit/freezing point (rec-
ommended heat transfer medium Tyfocor)
°C
-9.0
-9.0
-9.0
-9.0
-9.0
Heat exchanger capacity (brine)
l
21.9
33.6
39.0
43.2
50.4
Nominal flow rate (recommended value
for sizing)
m
3
/h
36.8
42.4
50.9
55.2
63.6
Minimum flow rate
m
3
/h
27.6
31.8
38.2
41.4
47.7
Pressure drop at nominal flow rate (total
pressure drop of evaporator including
connections)
kPa
40
51
55
54
55
Pressure drop at minimum flow rate
kPa
23
29
31
31
31
Secondary circuit
(water)
Spread
K
5
5
5
5
5
Heat exchanger capacity (water)
l
14.9
16.7
19.5
22.6
27.9
Nominal flow rate (recommended value
for sizing)
m
3
/h
26.4
30.6
36.8
39.7
46.0
Minimum flow rate
m
3
/h
19.8
23.0
27.6
29.8
34.5
Pressure drop at nominal flow rate (total
pressure drop of condenser including
connections)
kPa
41
47
57
55
62
Pressure drop at minimum flow rate
kPa
23
26
32
31
35
Max. flow temperature from inlet of pri-
mary circuit B +8 °C
°C
73
73
73
73
73
Notes
The specifications in the datasheets and the product
description describe purely physical characteristics.
Additional assurances or guarantees require a sepa-
rate contractual agreement.
Performance data to EN 14511 corresponds to a tem-
perature spread of 3 K at brine inlet 8 °C and brine out-
let 5 °C.
The specified pressure drop refers only to the integral
heat exchangers in the heat pump and the connecting
flange.
A reduced flow rate results in a lower heat pump out-
put. (This also applies in partial load operation)
Failure to achieve the minimum flow rate may lead to
damage and therefore a malfunction of the heat pump.
Setting the frost protection too high (too much anti-
freeze) results in a reduced heating output.
Failure to achieve the minimum frost protection may
lead to damage and therefore a malfunction of the heat
pump.
Operation as water/water application with brine inter-
mediate circuit:
If the brine temperature of the intermediate circuit is
reduced from 8 °C to 6 °C, the output and efficiency of
the heat pump are reduced by approx. 5 %.
Specification
Specification – Vitocal 350-G Pro
(cont.)
5855865
Appendix
Summary of Contents for BW 352.B027
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