Installation manual

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Air-to-Water Heat Pumps 2.8.6
2.8.6 High-temperature heat pumps LA 22HS to LA 26HS
Device information for air-to-water heat pumps for heating purposes
1 Type and order code
LA 22HS LA 26HS
2Design
2.1 Design Compact Compact
2.2 Degree of protection according to EN 60 529 for compact devices and
heating components
IP24 IP24
2.3 Installation location Outdoors Outdoors
3 Performance data
3.1 Operating temperature limits:
Heating water flow/return flow
1
°C / °C
1. See operating limits diagram
up to 75 / above 18 up to 75 / above 18
Air °C -25 to +35 -25 to +35
3.2 Temperature spread of heating water (flow/return flow) at A2 / W35K 7.1 8.4
3.3 Heat output / COP at A-7 / W35
2
kW / ---
2. This data indicates the size and capacity of the system according to EN 255 or EN 14511. For an analysis of the economic and energy efficiency of the system, other parameters,
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.
11.0 / 2.6 13.0 / 2.8
at A2 / W35
2
kW / ---
13.6 / 3.1 15.9 / 3.2
at A-7 / W75
2
kW / ---
16.1 / 1.7 18.1 / 1.8
at A7 / W35
2
kW / ---
15.4 / 3.4 19.8 / 3.8
at A10 / W35
2
kW / ---
16.5 / 3.5 20.4 / 3.9
3.4 Sound power level dB(A) - -
3.5 Heating water flow with an internal pressure differential of m³/h / Pa 1.8 / 3000 1.8 / 3000
3.6 Air flow m³/h 8000 8000
3.7 Refrigerant; total filling weight type / kg R404A / 3.3 R404A / 3.7
Type / kg R134a / 2.7 R134a / 3.1
4 Dimensions, connections and weights
4.1 Device dimensions H x W x L cm 171 x 168 x 100 171 x 168 x 100
4.2 Device connections to heating system Inch Thread 1 1/4" external Thread 1 1/4" external
4.3 Weight of the transportable unit(s) incl. packing kg 411 418
5 Electrical connection
5.1 Nominal voltage; fuse protection V / A 400 / 25 T 400 / 25 T
5.2 Nominal power consumption
2
A2 W35 kW
4.4 5,0
5.3 Starting current with soft starter A 25 30
5.4 Nominal current A2 W35 / cosϕ A / --- 8.0 / 0.8 9.0 / 0.8
6 Complies with the European safety regulations
3
3. See CE declaration of conformity
3
7 Additional model features
7.1 Defrosting Automatic Automatic
Type of defrosting Reverse circulation Reverse circulation
Defrosting tray included Yes (heated) Yes (heated)
7.2 Heating water in device protected against icing
4
4. The heat circulating pump and the heat pump controller must always be ready for operation.
Yes Yes
7.3 Performance levels 22
7.4 Controller internal/external External External