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Device information for air-to-water heat pumps (heating only) LI 28TEL
1 Type and order code
LI 28TEL
2Design
2.1 Degree of protection according to EN 60 529 for compact devices
and heating components
IP 21
2.2 Installation location Indoors
3 Performance data
3.1 Operating temperature limits:
Heating water flow/return flow
1
°C / °C
Up to 58 / above 18
Air °C -25 to +35
3.2 Temperature spread of heating water (flow/return flow) at A7 / W35K 9.9 5.0
3.3 Heat output / COP at A-7 / W35
2
kW / ---
3
9.9 / 2.4 9.2 / 2.3
4
19.1 / 2.7 16.1 / 2.3
at A-7 / W45
2
kW / ---
3
8.7 / 2.0
4
15.0 / 1.9
at A2 / W35
2
kW / ---
3
12.8 / 3.0 12.6 / 3.0
4
22.3 / 3.0 22.2 / 3.0
at A7 / W35
2
kW / ---
3
14.2 / 3.1 13.9 / 3.1
4
25.8 / 3.4 25.1 / 3.3
at A7 / W45
2
kW / ---
3
12.8 / 2.9
4
24.6 / 2.8
at A10 / W35
2
kW / ---
3
14.7 / 3.1 14.3 / 3.2
4
29.1 / 3.6 28.7 / 3.5
3.4 Sound power level device / outdoors dB(A) 62 / 68
3.5 Sound pressure level at a distance of 1 m (indoors) dB(A) 58
3.6 Heating water flow with an internal pressure differential of m³/h / Pa 2.3 / 3100 4.6 / 12000
3.7 Air flow rate with an external static pressure differential of m³/h / Pa 9000 / 0
m³/h / Pa 8000 / 25
3.8 Refrigerant; total filling weight type / kg R404A / 4.3
4 Dimensions, connections and weight
4.1 Device dimensions H x W x L cm 171 x 75 x 103
4.2 Device connections to heating system Inch G 1 1/4'' external
4.3 Air duct inlet and outlet (min. internal dimensions) L x W cm 72.5 x 72.5
4.4 Weight of the transportable unit(s) incl. packing kg 314
5 Electrical Connection
5.1 Nominal voltage; fuse protection V / A 400 / 25 T
5.2 Nominal power consumption
2
A2 W35 kW
7.40 7.44
5.3 Starting current with soft starter A 25
5.4 Nominal current A2 W35 / cosϕ A / --- 13.4 / 0.8 13.4 / 0.8
6 Complies with the European safety regulations
5
7 Additional model features
7.1 Defrosting Automatic
Type of defrosting Reverse cycle
Defrosting tray included Yes (heated)
7.2 Heating water in device protected against icing
6
Yes
7.3 Performance levels 2
7.4 Controller internal/external Internal
1. See operating limits diagram
2. This data indicates the size and capacity of the system. For an analysis of the economic and energy efficiency of the system, other parameters, such as, in particular, the defrosting
capacity, the bivalence point and regulation, should also be taken into consideration. The specified values, e.g. A2 / W55, have the following meaning: 2 °C external air temperature
and 55 °C heating water flow temperature.
3. Operation with 1 compressors
4. Operation with 2 compressors
5. See CE declaration of conformity
6. The heat circulating pump and the heat pump controller must always be ready for operation.