EXCEPTIONALLY QUIET
AEROTOP® SX sets new standards and requires only the smallest of clearances from living areas and neighbouring properties.
AEROTOP® SX - The quiet way to heat
AEROTOP® SX
Air-to-water heat pump
Power 7 kW to 13 kW
Power 7 kW to 13 kW
With the AEROTOP® SX, ELCO is once again setting new standards. It is one of the quietest air-water heat pumps in Germany and also impresses with its high-quality design, efficiency and sustainability.
A combination of comfort and quiet
ELCO has raised the standards in air-to-water heat pump design, with the introduction of the AEROTOP® SX. This monobloc unit is designed for outdoor installation and will provide you with outstanding levels of heating, cooling and hot water all-year round.
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Key features at a glance
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Air/water heat pump
7kW, 10kW & 13kW @ A-7/W35, outdoor installation
Exceptionally quiet
AEROTOP® SX7: Only 3m to neighbour required; SX10/SX13: Only 5m to neighbour required
Best efficiency
A+++ for low running costs and sustainability
Cooling function
Active cooling function always integrated to optionally cool your home
Cascade
14kW, 20kW & 25kW as a cascade of two single, same size units, flexible for any application
R32 refrigerant
Efficient and safe refrigerant with low global warming potential (GWP) and for best sustainability
System control
Versatile functions for a range of installations
Developed to be quiet
The AEROTOP® SX7 achieves a sound power level of 47 dB(A) and a sound pressure of 42 dB(A) in reduced night mode and at a distance of 1m (when mounted directly on your house wall). At a distance of 3m, the sound pressure is only 33 dB(A). Noise protection guidelines are fully adhered to, allowing for installation in residential areas while making units ideal for smaller properties.
There are many considerations to make regarding noise when positioning an external heat pump. These include ensuring units are sited at a sufficient distance from neighbouring buildings - especially areas requiring sound protection, such as bedrooms. The type of residential area is also important, as different noise limits apply to specific locations. Any airborne sound can be reduced by structural measures, but not by planting, while structure-borne sound can be minimised through isolating the unit from the building. We recommend using flexible connecting hoses to decouple vibrations, as well as observing the minimum distances to the unit to reduce sound reflection (and eliminate the risk of blocking of air currents). Finally, you should avoid reflective surfaces, as every reflective plane doubles the sound pressure level!
How have we made the AEROTOP® SX so quiet?
To heat a single-family house with an air-to-water heat pump with 10 kW heating capacity, up to 4,000m³ of air per hour must flow through the evaporator via the fan. In addition, a compressor is required in the refrigeration circuit compresses the evaporated refrigerant to deliver a usable temperature level. All of this creates noise, so we've included the following features to ensure the AEROTOP® SX runs as quietly as possible.
New construction and renovation
The AEROTOP® SX should always be your first choice, as this standalone heat pump can warm your home even when the weather is very cold outside.
New construction
The lower the temperature difference between the outside air (heat source) and the heating temperature (heat sink), the more efficiently a heat pump operates. In new properties, low-temperature underfloor or wall heating systems are predominantly used, as they can run from heat pumps - even at very low outdoor temperatures.
Renovation
Many existing homes already have radiators or panel heating systems. A heat pump can also supply these systems without any problems. However, the aim should be to keep system temperatures as low as possible. So, if the conversion to a panel heating system is not planned, it can make sense (in some cases) to replace the existing radiators with larger models, allowing for the same output to be delivered into the rooms as before but with a lower system temperature. Your local installer will be happy to answer any questions about whether the replacement is necessary.
During extreme cold
The AEROTOP® SX delivers flow temperatures of up to 60°C when ambient temperatures are as low as -10°C. The unit can even operate when the outside temperatures are as low as -20°C. Temperatures below -10°C, or even -20°C are infrequent and only last for short periods in Central and Southern Europe. However, if the heat output of the heat pump is no longer sufficient during cold spells, the AEROTOP® SX has an integrated back-up heater to provide additional support.
Cooling
Did you know a heat pump can also cool? Although the AEROTOP® SX is a heating heat pump, by reversing the cooling cycle, it can also cool. In cooling mode, the heat pump extracts energy (heat) from the building and dissipates it into the environment via the evaporator and fan. This causes the room temperature to drop, using the same principle as a refrigerator. Please note: Cooling is not possible via conventional radiators.
Cooling via fan coil units
Fan coil units, operated in a separate circuit, can provide significant cooling. Installing the cooling circuit and fan coil units separately allows for flow temperatures as low as 7°C. This is the most common system used for cooling.
Cooling via surface heating systems
Cooling can also be achieved via floor or wall heating systems. However, the cooling effect here is considerably lower than that achieved with convectors because, among other things, condensation must be avoided. As a result, the flow temperatures are approximately 18°C and room temperature can be decreased by approximately 3°C.
Solutions
First Class Service
People say we offer the best customer service in the industry: in fact, we are there for our customers 365 days a year, 24 hours a day. With more than 800 service engineers in Europe.
MORE ABOUT SERVICE AT ELCO
Your heating always at hand - with REMOCON NET
Wouldn't it be nice if you could set the ideal room temperature at the touch of a button before you get home? With the ELCO REMOCON-NET app for your smartphone, you can control your heating system anytime, anywhere. Adjust the settings for optimum energy consumption and save money.
MORE ABOUT REMOCON NET
Our references - your security
Our customers love their heating solutions from ELCO. That's why they are happy to give us an insight into their heating centres. That makes us happy and, of course, very proud!
TO OUR REFERENCESTechnical Data
| AEROTOP SX | 7 | 10 | 13 | |
|---|---|---|---|---|
| Energy efficiency class* Room heating | W35 | A+++ / A+++ | A+++ / A+++ | A+++ / A+++ |
| W55 | A+++ / A+++ | A+++ / A+++ | A+++ / A+++ | |
| Sound power level according to EN 12102 | dB(A) | 47 | 51 | 51 |
| Dimensions H x W x D | mm | 1250 x 1335 x 700 | 1250 x 1335 x 700 | 1250 x 1335 x 700 |
| Weight | kg | 240 | 260 | 260 |
| Heating | ||||
| Nominal power (max.) according to EN 14511/ EN 14825 [kW] | A2/W35 | 5.0 (6.5) | 6.6 (9.5) | 7.2 (11.2) |
| A7/W35 | 5.2 (5.5) | 8.0 (8.0) | 10.1 (10.1) | |
| A-7/W35 | 6.9 (7.9) | 9.7 (9.7) | 12.5 (12.5) | |
| Coefficient of performance according to EN 14511 [COP] | A2/W35 | 4.5 | 4.2 | 4.3 |
| A7/W35 | 5.2 | 5.2 | 5.1 | |
| A-7/W35 | 3.3 | 3.2 | 2.9 | |
* Energy efficiency class: Room heating: Product/System in accordance with Regulation EU 811/2013
Product label range: A+++ bis D
System label range: A+++ bis G
AEROTOP® SX Sound power levels
AEROTOP® SX7
47.00 LWA [dB(A)] outdoors*
AEROTOP® SX10
51.00 LWA [dB(A)] outdoors*
AEROTOP® SX13
51.00 LWA [dB(A)] outdoors*
*Sound power data according EN 12102
AEROTOP® SX dimensions
Controller dimensions
Installation
Heat pumps require a solid foundation and are usually mounted either on a surface or strip foundation. When designing the foundation, consider a height above ground (e.g. 150-200mm) in order to cover the standard snow heights in your region. This ensures the air inlet and outlet are maintained at all times. Sometimes heat pumps are also mounted on the wall; in such cases, care must be taken to minimise structure-borne noise. The AEROTOP® SX is designed for floor mounting.
Surface foundation
The surface foundation securely raises the heat pump unit from the ground. It is important to ensure the whole construction is decoupled from the building, with a recommended thickness of 150-200mm on a well-compacted substrate. The condensate drain pipework must pass the surface foundation into the frost-proof area and then into the ground.
Strip foundation
Strip foundations are another option for mounting air source heat pump units outside. These must be well levelled and extend into the frost-proof area. The height above ground can be freely selected and the condensate drain pipework can pass between the strips into the frost proof area and the ground.
Due to the refrigerant used, the AEROTOP® SX must maintain minimum distances from light wells or other openings leading into the building that are lower than the heat pump.
Light wells close to the floor
The refrigerant R32 is heavier than air and will sink to the ground in the event of a leak. As a result, a minimum distance between the outdoor unit and light wells must be maintained outdoors. When the light wells are close to the floor, this distance is ≥1000mm.
Raised light wells
When an application has raised light wells (≥150 mm), the minimum distance between the outdoor unit and light wells must be ≥100 mm.
Sound
The heat pump should be positioned so that it does not affect your neighbours or surrounding properties. The distance required depends on the mounting conditions, the type of area, the sound power of the heat pump itself and local standards. As a result, this must be calculated individually in the design phase.
Free field placement
Anything >3m away from a wall is deemed "free field placement". A general surcharge of 3dB(A) is also applied to the sound power of the heat pump in the open air.
Installation at the house wall
Everything closer than 3m to the house wall is considered to be an "installation at the house wall". Compared to the free field (>3m), the sound level at the house wall increases by a further 3dB(A), i.e. +6dB(A), on the sound power of the heat pump.
Installation in a niche
Niches increase the reflection and, in turn, the sound level. Compared to a house wall, the sound level in a niche increases another 3dB(A) , i.e. +9dB(A), on the sound power of the heat pump.
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Control Unit
The ELCO control unit is located inside a property and is the main interface for the end user. Featuring a full graphic display for simple operation, the controller manages all aspects of the heating system. It can also be connected to additional devices, such as room thermostats and the REMOCON NET smart connectivity.
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Trunk line
The pre-assembled trunk cables enable clean and quick installation. Advantages of pre-assembled trunk lines:
- Different lengths and pipe sizes: The trunk lines are available in 5 different lengths, in both DN32 and DN40 pipework. They are made of insulated corrugated stainless steel pipe, which ensures high flexibility and durability.
- Protected hydraulic and electrical lines: The hydraulic and electrical lines are housed in a protected casing pipe, which protects them from external influences such as weather or damage and ensures a safe installation.
- Airtight and watertight design: The long-distance lines are airtight and watertight, which ensures reliable operation and a long service life.
- Tight against pressurised water: Thanks to the masonry sealing set of the casing pipe for the wall penetration, the long-distance pipes are tightly sealed against pressurised water, which prevents the ingress of moisture and additionally secures the installation.
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Plate heat exchanger
Suitable for versatile applications, especially for system separation in older heating systems, such as underfloor heating.
There are many similarities between a heat pump system and one with an alternative heat generator, such as an oil, gas, or pellet boiler. The main difference is that a heat pump is installed outside the property, while a boiler is traditionally installed inside a property. The diagrams below show two simplified systems, which both provide heating and domestic hot water.
Return buffer
If the volume of water in a heating system is relatively small, a buffer tank helps to balance the system and ensure the heat pump works efficiently. The buffer tank also facilitates the heat pump's defrost cycle without taking heat from the system's heat emitters.
Combi buffer tank
The buffer in this system is supplying heat to the heating circuit, as well as a fresh water station. Plus, in summer, solar PV panels can provide energy to the buffer, which can be used for domestic hot water.
Schematic
Return buffer
Schematic
Combi buffer tank
Reasons to install a buffer tank
Optimisation
Run time optimisation, especially for non-modulating heat pumps
Defrost
Provide an additional volume of water for defrosting air/water heat pumps
PV integration
Increased system volume for PV-integration or Smart Grid requests
System volume
System volume / energy for energy supplier interruptions
Alternative heat sources
Integration of additional heat generators, such as solid fuel boilers, solar thermal etc.
Decoupling
Hydraulic decoupling of generator and heat sink
