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Split air source heat pump
BWL-1S(B)

Split air source heat pump, modulating, energy efficient version for heating mode, cooling and DHW heating, with indoor and outdoor units to be sited separately
Model / Performance
  • BWL-1S(B) 05/230V
  • BWL-1S(B) 07/230V
  • BWL-1S(B) 10/230V
  • BWL-1S(B) 10/400V
  • BWL-1S(B) 14/230V
  • BWL-1S(B) 14/400V
  • BWL-1S(B) 16/400V
  • Key Facts
  • Specification
  • Downloads

Outdoor unit:

  • Electronic output control with inverter technology (heating/cooling)
  • Night mode for sound reduction
  • Connection cover at the side included

Indoor unit:

  • Integral high efficiency circulation pump, heat meter, 3-way changeover valve, water pressure sensor, safety valve with drain hose
  • Spread control via the pump speed
  • Flow/efficiency optimised electric heating element with 6 kW; 230 or 400 V connection options (only as accessories for BWL-1SB)

Programmable input (E1+E2):

  • Heating disabled / DHW disabled / heating-DHW disabled / dew point monitor
  • Header sensor / maximum thermostat / BMS control unit 0 – 10 V / BMS ON-OFF
  • PSU contact or 2 contacts for Smart Grid
  • External increase in the system temperature using Smart Grid, for example, or on-site consumption of PV power

Programmable output:

  • DHW circulation pump (time control or pushbutton) / alarm output / DHW output / demand to a second heat generator
Please choose model
Split air source heat pump BWL-1S(B)
Type BWL-1S(B)
07/230V
BWL-1S(B) 10/230V BWL-1S(B) 14/230V BWL-1S(B) 10/400V BWL-1S(B) 14/400V

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++

Dimensions

Width x height x depth, outdoor unit (incl. feet and front doors) mm 964 x 862 x 363964 x 1261 x 363 964 x 1261 x 363 964 x 1261 x 363 964 x 1261 x 363
Width x height x depth, indoor unit (incl. feet and front doors) mm 440 x 790 x 340440 x 790 x 340 440 x 790 x 340 440 x 790 x 340 440 x 790 x 340

Weight

Weight of outdoor/indoor unit kg 66 / 31110 / 30 110 / 32 110 / 35 110 / 37

Refrigerant circuit

Refrigerant type / GWP - / R410A / 2088R410A / 2088 R410A / 2088 R410A / 2088 R410A / 2088
Charge weight / CO2 equiv. kg / t 2,15 / 4,492,95 / 6,16 2,95 / 6,16 2,95 / 6,16 2,95 / 6,16
Max. length of refrigerant line m 2525 25 25 25
Charge weight of refrigerant to be added, line length > 12 m - 25 m g/m 6060 60 60 60
Refrigerant oil FV68SFV50S FV50S POE  POE
Refrigerant oil charge weight ml 6501700 1700 1100 1100
Compressor type Rotating pistonScroll Scroll Twin rotating piston Twin rotating piston
Maximum operating pressure bar 4343 43 43 43

Heating output / COP to EN 14511

A2/W35 rated output kW / - 5,0 / 3,57,7 / 3,5 9,6 / 3,3 7,6 / 3,8 8,8 / 3,8
A7/W35 rated output kW / - 7,3 / 4,811,1 / 4,7 14,1 / 4,3 10,2 / 4,8 12,1 / 4,8
A-7/W35 max. output kW / - 6,2 / 2,77,7 / 2,5 9,5 / 2,5 8,1 / 2,3 8,7 / 2,3
Output range at A2/W35 kW 1,9 - 8,83,6 - 9,5 3,6 - 10,9 2,9 - 10,6 3,1 - 12,4

Cooling capacity / EER to EN 14511

A35/W7 rated output kW / - 7,6 / 2,76,6 / 2,7 8,2 / 2,5 8,8 / 2,7 10,7 / 2,5
A35/W18 rated output kW / - 9,0 / 3,88,5 / 3,4 10,1 / 2,9 8,7 / 4,1 12,0 / 3,4
Compressor output range at A35/W18 kW 2,9 / 9,64,9 - 11,2 4,9 - 12,9 3,1 - 11,0 3,2 - 13,2

Sound, outdoor unit

Sound power level (with reference to EN 12102/ EN ISO 9614-2) at A7/W55 at rated heating output dB(A) 6363 63 61 63
Max. sound power level dB(A) 6365 64 64 65
Max. sound power level in reduced night mode dB(A) 5658 58 57 57

Application limits

Operating limit temperatures, heating mode °C +20 bis +55+20 bis +55 +20 bis +55 +20 bis +55 +20 bis +55
Operating limit temperatures, cooling mode °C +10 bis +45+7 bis +20 +7 bis +20 +7 bis +20 +7 bis +20
Maximum heating water temperature with electric booster heater °C 7575 75 75 75
Min./max. operating limit temperatures, air in heating mode °C -20 bis +35-15 / +35 -15 / +35 -20 / +35 -20 / +35
Min./max. operating limit temperatures, air in cooling mode °C +10 bis +45+10 / +45 +10 / +45 +10 / +45 +10 / +45

Heating water

Minimum flow rate l / min 1521 25 21 25
Nominal water flow rate (5 K) l / min 1931,8 40,4 28,8 34,1
Maximum water flow rate (4 K) l / min 2539,8 50,6 36 42,7
Heat pump pressure drop at nominal (5 K) mbar 78126 175 121 141
Residual head at nominal water flow rate mbar 490530 340 550 460
Maximum operating pressure bar 3 3 3 3 3

Heat source

Air flow rate at nominal operating point m³ / h 26003800 3800 3500 4200

Connections

Connection, heating flow / return / DHW flow mm 28x128x1 28x1 28x1 28x1
Connection, refrigerant lines UNF 5/8 + 7/85/8 + 7/8 5/8 + 7/8 5/8 + 7/8 5/8 + 7/8
Dimensions, refrigerant lines mm 10x1 + 16x110x1 + 16x1 10x1 + 16x1 10x1 + 16x1 10x1 + 16x1
Dimensions, condensate line, outdoor unit mm 1616 16 16 16

Electrics, outdoor unit

Power supply / fuse protection, outdoor unit 1~NPE, 230VAC, 50Hz / 25A(C)1~NPE, 230VAC, 50Hz / 25A(C) 1~NPE, 230VAC, 50Hz / 32A(C) 3~NPE, 400VAC, 50Hz / 20A(C) 3~NPE, 400VAC, 50Hz / 20A(C)
Max. fan power consumption W 5787 87 70 102
Standby power consumption W 921 21 21 21
Max. power consumption, compressor current / cosφ within application limits kW 3,65,4  6,4  6,6
Compressor starting current A 1010 10 10 10
Compressor starting current with blocked rotor A 2525 32 16 16
Starting current (charging of DC capacitors) A 3530 30 30 30

IP rating, outdoor unit

Maximum number of compressor starts per hour 1/h 66 6 6 6
Pulse number p 2 2 6 6
Compressor frequency range f 20 - 70 20 - 75 20 - 65 20 - 75
Electrics, indoor unit
Power supply / fuse connection, heating element 1) Either 3~PE, 400 V AC, 50 Hz / 16 A(B) or 1~NPE, 230 V AC, 50 Hz / 32 A(B)
Power supply / fuse protection, control voltage 1~NPE, 230 V AC, 50 Hz / 16 A(B)
Power consumption, electric heater 1) kW 2 / 4 / 6 or 3 / 6 / 92 / 4 / 6 or 3 / 6 / 9 2 / 4 / 6 or 3 / 6 / 9 2 / 4 / 6 or 3 / 6 / 9 2 / 4 / 6 or 3 / 6 / 9
Power consumption, pump W 3 - 453 - 75 3 - 75 3 - 75 3 - 75
Standby power consumption W 55 5 5
Maximum power consumption, electric heater (6 kW) 1) A 8.7 (400 V AC) / 26.1 (230 V AC)8.7 (400 V AC) / 26.1 (230 V AC) 8.7 (400 V AC) / 26.1 (230 V AC) 8.7 (400 V AC) / 26.1 (230 V AC) 8.7 (400 V AC) / 26.1 (230 V AC)
Maximum power consumption, electric heater (9 kW) 1) A 13 (400 V AC)13 (400 V AC) 13 (400 V AC) 13 (400 V AC) 13 (400 V AC)
IP rating, indoor unit IP20IP20 IP20 IP20 IP20
Split air source heat pump BWL-1S(B)
BWL-1S(B) (55°C) ErP product data sheet
BWS-1SB-14/230V ErP label
BWS-1SB-14/400V ErP label
BWS-1S-14/400V ErP label
BWS-1SB-10/230V ErP label
BWS-1SB-10/400V ErP label
BWS-1S-10/400V ErP label
BWS-1SB-07/230V ErP label
BWS-1S-07/230V ErP label