20
11.5 Technical Data
Heat Pump Water Heater LBW 300 LBW 300LW
Type
without additional
tubular heat exchanger
with additional tubular
heat exchanger
Nominal tank capacity (L) 300 290
Tank material (enamelled acc. to DIN 4753) enamelled steel enamelled steel
Nominal tank pressure (bar) 10 10
Dimensions height
(max)
x diameter (cm) 169.5 x 70 169.5 x 70
Weight (without charge) (kg) 110 approx. 125
Electrical connection ( plug-in device – cable length approx.
2.7
m)
230 V ~ 50 Hz 230 V ~ 50 Hz
Fusing (A) 16 16
Refrigerant R 134a, charge weight (kg) 1.0 1.0
Performance data
Temperature, operating range (exhaust air)
(°C)
15 to 30 15 to 30
Water temperature in heat pump mode – fixed setpoint (°C) 58 58
Heat-up time from 15°C to 55°C
(at L20 / F50)
1)
(h) 9.5 9.4
Power consumption, electr. back-up heater (W) 1 500 1 500
Average power consumption
at 45 °C (W) 410 410
Average heat output
2)
at 55 °C (W) approx. 1400 approx. 1400
COP (t) acc. to TNO 4.05 4.05
COP (t) acc. to EN 255 Part 3 4.4 4.4
Sound pressure level at 300 m³/h
3)
(dB(A)) 44 44
Air flow rate for ventilation mode (
3-speed operation)
(m³/h) 95 , 185 , 300 95 , 185 , 300
Air flow rate, heat pump mode (m³/h) 185 , 300 185 , 300
External pressure at 300 m³/h (pa) 250 250
Airduct connection, diameter, exhaust air/outlet air (mm)
160 160
Maximum airduct connection length (m) 10 10
Sensor tube Ø
inside
(
for sensor – heat exchanger mode
) (mm) - - - 12
Connection, circulation line external thread R3/4" R3/4"
Connection, hot water outlet external thread R1“ R1“
Connection, cold water supply external thread R1“ R1“
Internal heat exchanger – transfer surface (m²) - - - 1.45
1)
At fan setting III (300 m³/h)
2) Heat-up process of nominal content from 15 °C to 45 °C at L20 / F50 = 20°C exhaust air temperature, 50%
exhaust air humidity and fan setting III
3) At a distance of 1m
(in the case of self-contained units or installations without exhaust air duct or 90°-elbow on exhaus
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