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Brine-to-water heat pump

BWS-1

Brine-to-water heat pump for indoor installation

 

BWS-106
BWS-108
BWS-110
BWS-112
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Brine-to-water heat pumps designed for operation with 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 pumps for the heating and brine circuits
  • 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 in accordance with the applicable certification requirements.

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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

  • 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)
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    Overview of benefits

    Compressor with double vibration isolation, integrated flexible stainless steel corrugated pipes and sound-insulated housing

    Domestic hot water heating with optional ECO operating mode

    Electronically controlled electric booster heater for supplementary heating support

    Integrated heat meter with optional display of performance data via the electricity meter S0 interface

    WOLF Easy Connect System with pre-wired connection between the heat pump and the WPM-1 heat pump manager; includes BM programming unit and can be extended with additional system components, including solar applications, within the WOLF WRS control system

    Cascade operation with up to five heat pumps and a total system output of up to 80 kW using the KM cascade controller

    Compatible with the ISM7e / WOLF Link Pro interface module for remote communication functions

    Heat pump system using geothermal energy as a heat source

    Appliance versions designed to fulfil the stated technical requirements for applicable BAFA funding programmes in Germany

    System integration with smart grid and photovoltaic applications for temperature management and energy utilisation

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