Search
Search
Private customerProfessional
EN
A +++

Brine-to-water heat pump

BWS-1

High efficiency brine-to-water heat pump for indoor installation

BWS-106
BWS-108
BWS-110
BWS-112
Show all

Brine-to-water heat pumps for using natural energy obtained from geothermal collectors or geothermal probes with a heating output of 6, 8, 10, 12 or 16 kW; for heating water temperatures up to 63°C and a min. brine temperature as low as -5°C

  • Clear appliance layout; all essential components are accessible from the front
  • Equipped with class A, energy-saving, high-efficiency pumps for heating circuit and
  • brine circuit and 3-way diverter valve for DHW cylinder heating
  • Can be combined with CEW-1-200 DHW cylinder to form a heating centre
  • Safety assemblies for the heating and brine circuit
  • Extension with BKM cooling module for passive cooling (option)
  • Awarded the EHPA Quality Label for its all-round
  • guarantee of quality and the highest levels of environmental and consumer protection

What do you want to know?

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+++
A+++
A+++
A+++
A+++
Energy efficiency class, central heating, medium temperature
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

  • 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+++
    A+++
    A+++
    A+++
    A+++
    Energy efficiency class, central heating, medium temperature
    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)
    Show moreShow less

    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

    Downloads

    Hello!

    How can we help?

    Customer Service
    Tools
    Important Links
    Downloads
    Service App
    Supplier portal