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 exhaust
air side
