126
Type BW
Two-stage
Three-stage
352.A
353.A
114 /
SA
132 /
SA
156 /
SA
172 /
SA
198 /
SA
Dimensions
Total length
mm
2150
2150
2150
2800
2800
Total width
mm
911
911
911
911
911
Total height
mm
1650
1650
1650
1650
1650
Connections, Victaulic
Primary flow and return
DN
80
80
80
80
80
Heating flow and return
DN
80
80
80
80
80
Weight
kg
1113
1209
1260
1604
1678
Sound power level
(tested
with reference to
EN ISO 9614-2) Weighted
total sound power level at
B0
±3 K
/W35
±5 K
At rated heating output
dB(A)
65
65
65
65
65
Minimum flow rates are rounded up or
down.
Note
■ Output data to EN 14511 correspond
to a temperature spread of 3 K at a
brine inlet temperature of 0 °C and
brine outlet of –3 °C.
■ The flow rate is greater by a multiple
factor than the specified minimum flow
rate. The test flow rate at ΔT 3 K cor-
responds to 1.65-times the specified
minimum flow rate.
■ In operation as a water/water heat
pump with an intermediate circuit, the
output of the heat pump is reduced by
approx. 5 % if the brine temperature of
the intermediate circuit is reduced to
8 °C instead of 10 °C.
■ All technical details, with the exception
of starting currents, also apply to type
BW with SA.
Information on the refrigerant
The EC safety datasheet for R410A can
be obtained from the Technical Services
department of Viessmann Werke.
Specification
(cont.)
5848 449 GB
