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Specifications

BWS-1
Model type
BWS-1 06
BWS-1 08
BWS-1 10
BWS-1 12
BWS-1 16
General data
Energy efficiency class, central heating, low temperature
A+++ ➔ D
A+++
A+++
A+++
A+++
A+++
Energy efficiency class, central heating, medium temperature
A+++ ➔ D
A++
A++
A++
A++
A++
Maximum operating pressure, heating circuit / brine circuit
3 / 3
3 / 3
3 / 3
3 / 3
3 / 3
Operating limit temperatures, heating water
°C
20 to +63
20 to +63
20 to 63
20 to 63
20 to 63
Operating limit temperatures, brine
°C
5 to +20
5 to +20
-5 to 20
-5 to 20
-5 to 20
Refrigerant type/charge weight (hermetically sealed refrigerant circuit)
- / kg
R407C / 1.8
R407C / 2.0
R407C / 2.25
R407C / 2.8
R407C / 3.1
Maximum operating pressure, refrigerant circuit
bar
30
30
30
30
30
Refrigerant oil
FV50S
FV50S
FV50S
FV50S
FV50S
Water flow rate: minimum (7 K) / nominal (5 K) / maximum (4 K)
l/min
12.1 / 16.6 / 21.6
17.2 / 24 / 30
22 / 30.8 / 38.3
24.6 / 34.1 / 43.3
34.4 / 48.3 / 60
Residual head at dT 5 K
mbar
580
510
450
480
440
3-way valve for DHW heating circuit
integrated
integrated
integrated
integrated
integrated
High efficiency pump (EEI < 0.23), heating circuit
Wilo Yonos Para 25/7.5
Wilo Yonos Para 25/7.5
Wilo Yonos Para 25/7.5
Wilo Stratos Para 25/1-8
Wilo Stratos Para 25/1-8
Brine flow rate: minimum (5 K) / nominal (4 K) / maximum (3 K)
l/min
15 / 18.3 / 25
20 / 25.8 / 34.3
26.6 / 33.3 / 44.1
29.1 / 36.6 / 48.3
40.8 / 50.8 / 67.8
Residual head at dT 4 K (30% brine / 0°C)
mbar
480
440
410
550
440
Minimum brine concentration / frost protection down to
% / °C
25 / -13
25 / -13
25 / -13
25 / -13
25 / -13
High efficiency pump (EEI < 0.23), brine circuit
Wilo Stratos Para 25/1-7
Wilo Stratos Para 25/1-7
Wilo Stratos Para 25/1-7
Wilo Stratos Para 25/1-8
Wilo Stratos Para 25/1-8
Output, electric heater, 3 phases, 400 V
kW
1 to 6
1 to 6
1 to 6
1 to 6
1 to 6
Maximum power input, electric heater
A
9.6
9.6
9.6
9.6
9.6
Maximum power consumption / compressor current within application limits
kW / A
2.28 / 4.20
3.2 / 5.8
3.85 / 7.0
4.71 / 8.4
6.53 / 11.7
Power consumption / power input / cos φ at B0/W35
kW / A / -
1.26 / 2.5 / 0.72
1.79 / 3.2 / 0.80
2.3 / 4.4 / 0.76
2.55 / 4.6 / 0.79
3.65 / 6.9 / 0.76
Power consumption of heating circuit pump at nominal flow rate
W
45
55
60
100
110
Power consumption of brine pump at nominal flow rate
W
55
60
65
110
120
Starting current, direct / soft start
A
27 / -
- / 21
- / 26
- / 31
- / 39
Max. no of compressor starts
1/h
3
3
3
3
3
Typical BWS-1 power consumption in standby LP (low power)
W
5.8
5.8
5.8
5.8
5.8
IP rating
IP
IP20
IP20
IP20
IP20
IP20
Heating output / COP according to EN14511
B0/W35
kW / -
5.9 / 4.7
8.4 / 4.7
10.8 / 4.7
12.0 / 4.7
16.8 / 4.6
B0/W55
kW / -
5.3 / 2.8
7.4 / 2.8
9.2 / 2.9
10.5 / 2.8
15.8 / 2.8
B5/W35
kW / -
6.9 / 5.3
9.7 / 5.4
12.3 / 5.4
13.8 / 5.3
19.9 / 5.3
B-5/W45
kW / -
4.8 / 3.1
6.8 / 3.2
8.6 / 3.1
9.7 / 3.1
14.7 / 3.2
Dimensions
Total height
A mm
740
740
740
740
740
Total width
B mm
600
600
600
600
600
Total depth
C mm
650
650
650
650
650
Heating flow/return, DHW flow/return, brine inlet/outlet
Thread (male)
1½“
1½“
1½“
1½“
1½“
Sound power level
dB(A)
41
42
42
43
43
Average sound pressure level at 1 m distance from heat pump (inside the room)
dB(A)
39
40
40
41
41
Weight
Weight
kg
141
145
149
169
174
Electrics, indoor unit
Electrical connection / fuse protection (all-pole disconnection) compressor
3~ PE / 400 V AC / 50 Hz / 10 A(C)
3~ PE / 400 V AC / 50 Hz / 16 A(C)
Electric heater
3~ PE / 400VAC / 50Hz / 10A(B)
Control voltage
1~ NPE / 230 V AC / 50 Hz / 10 A(B)

Specifications

BWS-1
General data
Energy efficiency class, central heating, low temperature (A+++ ➔ D)
A+++
A+++
A+++
A+++
A+++
Energy efficiency class, central heating, medium temperature (A+++ ➔ D)
A++
A++
A++
A++
A++
Maximum operating pressure, heating circuit / brine circuit
3 / 3
3 / 3
3 / 3
3 / 3
3 / 3
Operating limit temperatures, heating water (°C)
20 to +63
20 to +63
20 to 63
20 to 63
20 to 63
Operating limit temperatures, brine (°C)
5 to +20
5 to +20
-5 to 20
-5 to 20
-5 to 20
Refrigerant type/charge weight (hermetically sealed refrigerant circuit) (- / kg)
R407C / 1.8
R407C / 2.0
R407C / 2.25
R407C / 2.8
R407C / 3.1
Maximum operating pressure, refrigerant circuit (bar)
30
30
30
30
30
Refrigerant oil
FV50S
FV50S
FV50S
FV50S
FV50S
Water flow rate: minimum (7 K) / nominal (5 K) / maximum (4 K) (l/min)
12.1 / 16.6 / 21.6
17.2 / 24 / 30
22 / 30.8 / 38.3
24.6 / 34.1 / 43.3
34.4 / 48.3 / 60
Residual head at dT 5 K (mbar)
580
510
450
480
440
3-way valve for DHW heating circuit
integrated
integrated
integrated
integrated
integrated
High efficiency pump (EEI < 0.23), heating circuit
Wilo Yonos Para 25/7.5
Wilo Yonos Para 25/7.5
Wilo Yonos Para 25/7.5
Wilo Stratos Para 25/1-8
Wilo Stratos Para 25/1-8
Brine flow rate: minimum (5 K) / nominal (4 K) / maximum (3 K) (l/min)
15 / 18.3 / 25
20 / 25.8 / 34.3
26.6 / 33.3 / 44.1
29.1 / 36.6 / 48.3
40.8 / 50.8 / 67.8
Residual head at dT 4 K (30% brine / 0°C) (mbar)
480
440
410
550
440
Minimum brine concentration / frost protection down to (% / °C)
25 / -13
25 / -13
25 / -13
25 / -13
25 / -13
High efficiency pump (EEI < 0.23), brine circuit
Wilo Stratos Para 25/1-7
Wilo Stratos Para 25/1-7
Wilo Stratos Para 25/1-7
Wilo Stratos Para 25/1-8
Wilo Stratos Para 25/1-8
Output, electric heater, 3 phases, 400 V (kW)
1 to 6
1 to 6
1 to 6
1 to 6
1 to 6
Maximum power input, electric heater (A)
9.6
9.6
9.6
9.6
9.6
Maximum power consumption / compressor current within application limits (kW / A)
2.28 / 4.20
3.2 / 5.8
3.85 / 7.0
4.71 / 8.4
6.53 / 11.7
Power consumption / power input / cos φ at B0/W35 (kW / A / -)
1.26 / 2.5 / 0.72
1.79 / 3.2 / 0.80
2.3 / 4.4 / 0.76
2.55 / 4.6 / 0.79
3.65 / 6.9 / 0.76
Power consumption of heating circuit pump at nominal flow rate (W)
45
55
60
100
110
Power consumption of brine pump at nominal flow rate (W)
55
60
65
110
120
Starting current, direct / soft start (A)
27 / -
- / 21
- / 26
- / 31
- / 39
Max. no of compressor starts (1/h)
3
3
3
3
3
Typical BWS-1 power consumption in standby LP (low power) (W)
5.8
5.8
5.8
5.8
5.8
IP rating (IP)
IP20
IP20
IP20
IP20
IP20
Heating output / COP according to EN14511
B0/W35 (kW / -)
5.9 / 4.7
8.4 / 4.7
10.8 / 4.7
12.0 / 4.7
16.8 / 4.6
B0/W55 (kW / -)
5.3 / 2.8
7.4 / 2.8
9.2 / 2.9
10.5 / 2.8
15.8 / 2.8
B5/W35 (kW / -)
6.9 / 5.3
9.7 / 5.4
12.3 / 5.4
13.8 / 5.3
19.9 / 5.3
B-5/W45 (kW / -)
4.8 / 3.1
6.8 / 3.2
8.6 / 3.1
9.7 / 3.1
14.7 / 3.2
Dimensions
Total height (A mm)
740
740
740
740
740
Total width (B mm)
600
600
600
600
600
Total depth (C mm)
650
650
650
650
650
Heating flow/return, DHW flow/return, brine inlet/outlet (Thread (male))
1½“
1½“
1½“
1½“
1½“
Sound power level (dB(A))
41
42
42
43
43
Average sound pressure level at 1 m distance from heat pump (inside the room) (dB(A))
39
40
40
41
41
Weight
Weight (kg)
141
145
149
169
174
Electrics, indoor unit
Electrical connection / fuse protection (all-pole disconnection) compressor
3~ PE / 400 V AC / 50 Hz / 10 A(C)
3~ PE / 400 V AC / 50 Hz / 16 A(C)
Electric heater
3~ PE / 400VAC / 50Hz / 10A(B)
Control voltage
1~ NPE / 230 V AC / 50 Hz / 10 A(B)

Overview of benefits

Extremely quiet operation thanks to compressor with double vibration isolation, integral flexible corrugated stainless steel pipes and noise-attenuating casing

Energy efficient DHW heating with optional ECO mode

Electronically controlled, integrated electric booster heater for demand-based heating backup

Integral heat meter can be extended to display SPF/DPF via the electricity meter's S0 interface

WOLF Easy Connect System with a fully wired connection from the heat pump to the WPM-1 heat pump manager. The BM programming unit is included, and the system can be extended for additional energy sources, e.g. solar, using the WOLF WRS control system

Cascadable up to 80 kW: Up to 5 heat pumps can be combined using a KM cascade controller

Smart-home-capable with ISM7e / WOLF Link pro interface module

WOLF high-efficiency heat pumps obtain up to 80% of their heating energy from free environmental energy

All appliance types meet the BAFA subsidy guidelines for efficient heat pumps [Germany]

The system temperature can be increased by external sources using smart grid electricity or a photovoltaic system