89
Type BW
Single stage 301.
Two-stage 302.
B090
B120
B090
B120
B150
B180
B250
Brine
(intermediate circuit
–
5 °C)
Content
l
33.0
42.0
33.0
42.0
55.2
69.0
89.4
Minimum flow rate (5 K spread) m
³
/h
26.0
31.0
24.9
31.8
41.0
48.0
62.0
Flow pressure drop (at mini-
mum flow rate)
mbar
175
175
170
170
195
210
280
Max. flow temperature
°C
20
20
20
20
20
20
20
Min. flow temperature
°C
7
7
7
7
7
7
7
Heating water
(secondary cir-
cuit)
Content
l
22.7
28.7
22.7
28.7
38.7
53.5
57.1
Minimum flow rate (10 K
spread)
m
³
/h
10.8
13.1
10.3
13.2
17.1
20.5
26.0
Flow pressure drop (at mini-
mum flow rate)
mbar
130
130
130
130
130
130
160
Max. flow temperature
°C
60
60
65
65
60
60
60
Note
■
Output data to EN 14511 correspond to a tempera-
ture spread of 3 K at a brine inlet temperature of 0 °C
and brine outlet of –3 °C.
■
The specified flow rates are rounded up or down.
■
Operation as water/water heat pump with intermedi-
ate circuit:
If the brine temperature of the intermediate circuit is
reduced to 8 °C instead of 10 °C, the heat pump out-
put is reduced by approx. 5 %
Information on refrigerant
The EC safety datasheet for R410A can be obtained
from the Technical Services department of Viessmann
Werke.
Type BW
Single stage 301.
Two-stage 302.
B090
B120
B090
B120
B150
B180
B250
Electrical values, heat
pump
Rated voltage, compressor
3/PE 400 V/50 Hz
Rated current, compressor
(B0/W35)
A
32.4
40.2
< 30.2
each
< 20.1
each
25 each
32.4
each
40.2
each
Starting current, compressor
(with starting current limiter)
A
< 83
< 130
< 49
each
< 56
each
< 75
each
< 83
each
< 130
each
Starting current, compressor
with stalled armature
A
287
298
176
each
212
each
210
each
287
each
298 each
Heat pump MCB/fuse protec-
tion (compressor and con-
sumer)
A
80
100
80
100
125
160
200
Max. operating current
A
66
81
60.4
79.8
106
132
162
Specification
Specification, type BW 301.B090 to BW 302.B250
(cont.)
5549 984 GB
Service
Summary of Contents for KWT BW 301.B090
Page 99: ...99 5549 984 GB...
