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Air source heat pump
BWL-1-I

High efficiency air source heat pump designed as a single unit (monoblock) for indoor installation
Model / Performance
  • BWL-1 08-l
  • BWL-1 10-l
  • BWL-1 12-l
  • BWL-1 14-l
  • Key Facts
  • Specification
  • Downloads
  • Air source heat pump for a maximum heating water temperature of 63 °C and a minimum air temperature of down to -25 °C
  • Heat meter integral to the appliance (BAFA recognised)
  • Electronic soft start for starting current limit
  • Electronically controlled electric heating element, 6 kW (or 8 kW for BWL-1-14), for central heating backup and DHW heating according to demand in mono energetic operation
  • Integral switch for high efficiency pump (EEI < 0.23) and changeover valve
  • Anti-vibration connections
  • Variable speed EC radial fan
  • "Wolf Easy Connect System" with fully wired connection (including 5 m cable) from the heat pump to the WPM-1 heat pump manager
  • Defrosting according to demand through natural or active defrosting (process reversal)
  • Integral phase and rotary field monitors
  • Discharge can be connected to the right or left; corner installation possible
  • Intake duct connection at the back
  • External increase in the system temperature using Smart Grid or on-site consumption of PV power
  • Easy installation through direct connection of flow and return lines
Please choose model
Air source heat pump BWL-1-I
Type BWL-1 08-I 10-I 12-I 14-I
Energy efficiency class, central heating, low A++ A++ A++ A++
Energy efficiency class, central heating, medium temperature A+ A+ A+ A+
Heating output / COP to EN 14511
A2/W35 kW / - 8.4 / 3.8 9.6 / 3.7 11.7 / 3.7 13.5 / 3.6
A7/W35 kW / - 8.7 / 4.5 9.8 / 4.4 11.9 / 4.3 13.6 / 4.2
A7/W45 kW / - 10.4 / 3.7 11.7 / 3.614.4 / 3.513.0 / 3.3
A10/W35 kW / - 9.9 / 4.7 11.1 / 4.6 13.8 / 4.5 13.7 / 4.5
A-7/W35 kW / - 7.5 / 3.3 8.5 / 3.2 10.4 / 3.1 11.3 / 3.0
Total height A mm 1665 1665 1665 1665
Total width B mm 985 985 985 985
Total depth C mm 810 810 810 810
Heating flow / heating return / connection G (fem.) 1½" 1½" 1½" 1½"
Unrestricted cross-section, air ducts mm 550 x 550 550 x 550 550 x 550 550 x 550
Sound power level dB(A) 50 50 52 55
Average sound pressure level of indoor unit at 1 m distance from heat pump (in the installation room) dB(A) 46 46 48 50
Average sound pressure level of outdoor unit at 1 m distance from air connections (free space) dB(A) - - - -
Average sound pressure level of outdoor unit at 5 m distance from air connections (free space) dB(A) - - - -
Average sound pressure level of outdoor unit at 10 m distance from air connections (free space) dB(A) - - - -
Maximum operating pressure, heating circuit bar 3 3 3 3
Operating limit temperatures, heating water °C +20 to +63 +20 to +63 +20 to +63 +20 to +63
Max. temperature of heating water at -7 °C outside temperature °C 55 55 55 55
Operating limit temperatures, air, in °C °C -25 to +40 -25 to +40 -25 to +40 -25 to +40
Refrigerant type/charge weight (hermetically sealed refrigerant circuit) - / kg R407C / 3.4 R407C / 4.4 R407C / 4.5 R407C / 5.1
Maximum operating pressure, refrigerant circuit bar 30 30 30 30
Refrigerant oil FV50S FV50S FV50S FV50S
Water flow rate: minimum (7 K) / nominal (5 K) / maximum (4 K) 1) l/min 23 / 32 / 40 25.5 / 35.6 / 44.6 30.9 / 43.2 / 54.2 35.6 / 50 / 62.3
Heat pump pressure drop at nominal water flow rate mbar 110 124 165 240
Air flow rate at maximum external pressure at A2/W35 to EN 14511 m³/h 3200 3200 3400 3800
Maximum external pressure (adjustable) Pa 20-50 20-50 20-50 20-50
Output, electric heater, 3 phases, 400 V kW 1 to 6 1 to 6 1 to 6 1 to 8
Maximum current drawn, electric heater A 9,6 9,6 9,6 12,8
Maximum power consumption / compressor current within application limits kW / A 3.92 / 7.3 4.56 / 8.0 5.59 / 10.0 6.46 / 11.6
Power consumption / current drawn /
cos φ at A2/W35 to EN 14511 kW / A / -  2.21 / 4.5 / 0.71 2.59 / 4.7 / 0.80 3.16 / 5.9 / 0.77 3.75 / 6.9 / 0.78
Starting current (soft start) A 26 31 37 39
Maximum number of compressor starts per hour 1/h 3 3 3 3
Typical BWL-1 power consumption in standby LP (low power) W 5,8 5,8 5,8 5,8
IP rating IP IP 24 IP 24 IP 24 IP 24
Weight 2) kg 217 242 244 255
Electrical connection / fuse protection (omnipolar disconnection)
Compressor 3~ PE / 400VAC / 50Hz / 10A(C) 3~ PE / 400VAC / 50Hz / 10A(C) 3~ PE / 400VAC / 50Hz / 16 A(C) 3~ PE / 400VAC / 50Hz / 16 A(C)
Electric heater 3~ PE / 400VAC / 50Hz / 10A(B) 3~ PE / 400VAC / 50Hz / 10A(B) 3~ PE / 400VAC / 50Hz / 10A(B) 3~ PE / 400VAC / 50Hz/ 16 A(B)
Control voltage 1~ NPE / 230VAC / 50Hz / 10A(B)
Air source heat pump BWL-1-I
BWL-1-I ErP product data sheet
BWL-1-14-I ErP label
BWL-1-12-I ErP label
BWL-1-10-I ErP label
BWL-1-08-I ErP label