Air-to-Water Heat PumparoTHERM Split

Compact, quiet and quickly installed.

Highly flexible outdoor installation
Frost-proof operation thanks to split technology
Peaceful living thanks to quiet night-time operation
Active cooling for a comfortable room temperature on hot summer days
Convenient control via smartphone and myVaillant App
Hot water tailored to your individual needs

Plenty of installation options: Our aroTHERM Split can be installed on any property. Frost-free pipes allow for large distances between the outdoor and indoor units. The aroTHERM Split is so quiet that it is ideal for terraced housing estates and densely built-up residential areas. In silent mode, it is even quieter and ensures maximum peace and quiet. Available in 10 and 12 kW output sizes, it is a particularly good choice for modernizing single-family homes with higher energy requirements.

Ideal for:

Heating
Hot water
Cooling

No limitsHighly flexible outdoor installation.
No limits
With our aroTHERM Split, you have complete freedom when choosing the location. Thanks to the innovative split design, the indoor and outdoor units can be up to 40 meters apart and have a height difference of up to 30 meters. This means that the perfect installation location can be found for every house and every garden.
Reliable operationFrost protection by design: The split system advantage.
Reliable operation
Split heat pumps use refrigerant pipes – not water pipes – between the indoor and outdoor units. This means there's no risk of water freezing in the lines, even in the unlikely event of a power outage during sub-zero temperatures. The refrigerant remains stable and operational in cold conditions, ensuring the system is inherently frost-resistant. This design provides peace of mind and reliable performance, even when winter is at its harshest.
Extremely quietComfort you can hardly hear.
Extremely quiet
Our heat pumps are efficient and quiet. The innovative Sound Safe System ensures that operating noises are barely audible. This keeps your garden pleasantly quiet, so you can install the unit wherever you like. For even greater peace, it comes with a dedicated Night Mode.
Cool in summerActive cooling without the need for additional air conditioning units.
Cool in summer
Our heat pumps are efficient and quiet. The innovative Sound Safe System ensures that operating noises are barely audible. This keeps your garden pleasantly quiet, so you can install the unit wherever you like. For even greater peace, it comes with a dedicated Night Mode.
Tailored settings to goAlways in control with myVaillant App.
Tailored settings to go
With the included Internet gateway myVAILLANT connect, you can conveniently track the system’s energy consumption and precisely set desired temperatures and fixed operation hours with no effort via our app.
The right solution for every needCustomised hot water comfort.
The right solution for every need
Our heat pumps can be flexibly combined with either the compact uniTOWER Split with an integrated cylinder, or various other heat pump cylinders with capacities of up to 500 litres. The system is designed to suit your needs. This means you can enjoy a full bath even if someone has already showered or is washing up in the kitchen at the same time. Vaillant has the right solution for every living situation.

Technical data table overline

Technical data table headline

aroTHERM Split
VWL 35/5 AS 230V	VWL 55/5 AS 230V	VWL 75/5 AS	VWL 105/5 AS 400V	VWL 105/5 AS	VWL 125/5 AS	VWL 125/5 AS

Power Output and Efficiency

Heat Output / Power Consumption / COP for A-7/W35	Heat Output / Power Consumption / COP for A-7/W35	3,56 kW / 1,15 kW / 3,11	4,88 kW / 1,83 kW / 2,67	6,68 kW / 2,53 kW / 2,64	10,15 kW / 3,65 kW / 2,78	10,15 kW / 3,65 kW / 2,78	11,80 kW / 4,81 kW / 2,45	11,80 kW / 4,81 kW / 2,45
Heat Output / Power Consumption / COP for A2/W35	Heat Output / Power Consumption / COP for A2/W35	2,46 kW / 0,66 kW / 3,75	3,37 kW / 0,92 kW / 3,67	4,51 kW / 1,23 kW / 3,68	8,20 kW / 2,12 kW / 3,87	8,20 kW / 2,12 kW / 3,87	8,23 kW / 2,26 kW / 3,64	8,23 kW / 2,26 kW / 3,64
Heat Output / Power Consumption / COP for A7/W35	Heat Output / Power Consumption / COP for A7/W35	3,13 kW / 0,64 kW / 4,89	4,42 kW / 0,95 kW / 4,68	5,78 kW / 1,26 kW / 4,58	9,70 kW / 2,12 kW / 4,57	9,70 kW / 2,12 kW / 4,57	10,25 kW / 2,26 kW / 4,54	10,25 kW / 2,26 kW / 4,54
Heat Output / Power Consumption / COP for A7/W45	Heat Output / Power Consumption / COP for A7/W45	3,05 kW / 0,86 kW / 3,54	4,04 kW / 1,16 kW / 3,49	5,47 kW / 1,53 kW / 3,57	9,06 kW / 2,60 kW / 3,49	9,06 kW / 2,60 kW / 3,49	9,6 kW / 2,75 kW / 3,49	9,6 kW / 2,75 kW / 3,49
Heat Output / Power Consumption / COP for A7/W55	Heat Output / Power Consumption / COP for A7/W55	2,73 kW / 1,05 kW / 2,62	3,69 kW / 1,38 kW / 2,67	4,95 kW / 1,84 kW / 2,69	10,35 kW / 3,74 kW / 2,77	10,35 kW / 3,74 kW / 2,77	10,90 kW / 3,94 kW / 2,77	10,90 kW / 3,94 kW / 2,77
Cooling Output / Power Consumption / EER for A35/W7	Cooling Output / Power Consumption / EER for A35/W7	3,12 kW / 1,16 kW / 2,69	3,12 kW / 1,16 kW / 2,69	6,17 kW / 2,66 kW / 2,32	8,69 kW / 3,49 kW / 2,49	8,69 kW / 3,49 kW / 2,49	8,69 kW / 3,49 kW / 2,49	8,69 kW / 3,49 kW / 2,49
Cooling Output / Power Consumption / EER for A35/W18	Cooling Output / Power Consumption / EER for A35/W18	4,83 kW / 1,29 kW / 3,76	4,83 kW / 1,29 kW / 3,76	6,30 kW / 1,76 kW / 3,58	12,78 kW / 3,90 kW / 3,28	12,78 kW / 3,90 kW / 3,28	12,78 kW / 3,90 kW / 3,28	12,78 kW / 3,90 kW / 3,28

Electrical Connection

Electrical Power Consumption (max)	Electrical Power Consumption (max)	2,96 kW	2,96 kW	3,84 kW	7,6 kW	7,6 kW	4,9 kW	7,6 kW
Electrical Voltage Supply	Electrical Voltage Supply	230 V (50 Hz)	230 V (50 Hz)	230 V (50 Hz)	-	-	230 V (50 Hz)	-
Electrical Voltage Supply (selectable)	Electrical Voltage Supply (selectable)	-	-	-	230 V (50 Hz) - 400 V (50 Hz)	230 V (50 Hz) - 400 V (50 Hz)	-	230 V (50 Hz) - 400 V (50 Hz)
IP Rating¹	IP Rating¹	IP15B	IP15B	IP15B	IP15B	IP15B	IP15B	IP15B

Refrigerant

Refrigerant	Refrigerant	R410a	R410a	R410a	R410a	R410a	R410a	R410a
GWP	GWP	2.088	2.088	2.088	2.088	2.088	2.088	2.088
CO₂ Equivalent	CO₂ Equivalent	3,13 t	3,13 t	4,99 t	7,52 t	7,52 t	7,52 t	7,52 t
Refrigerant Quantity Default	Refrigerant Quantity Default	1,5 kg	1,5 kg	2,39 kg	3,6 kg	3,6 kg	3,6 kg	3,6 kg

Noise Emission

Sound Power Level (max)	Sound Power Level (max)	55 dB(A)	55 dB(A)	56 dB(A)	61 dB(A)	61 dB(A)	60 dB(A)	61 dB(A)
Sound Power Level at A-7/W35 (60 % Noise Reduction Mode)	Sound Power Level at A-7/W35 (60 % Noise Reduction Mode)	46 dB(A)	46 dB(A)	48 dB(A)	55 dB(A)	55 dB(A)	53 dB(A)	55 dB(A)
Sound Power Level at A7/W35	Sound Power Level at A7/W35	51 dB(A)	53 dB(A)	54 dB(A)	52 dB(A)	52 dB(A)	59 dB(A)	52 dB(A)
Sound Power Level at A7/W55	Sound Power Level at A7/W55	53 dB(A)	54 dB(A)	54 dB(A)	52 dB(A)	52 dB(A)	60 dB(A)	52 dB(A)

Connections

Connection Dimension Refrigerant Suction Pipe	Connection Dimension Refrigerant Suction Pipe	½″	½″	⅝″	⅝″	⅝″	⅝″	⅝″
Connection Dimension Refrigerant Liquid Pipe	Connection Dimension Refrigerant Liquid Pipe	¼″	¼″	⅜″	⅜″	⅜″	⅜″	⅜″

Dimensions

Height / Width / Depth	Height / Width / Depth	765 mm / 1.100 mm / 450 mm	765 mm / 1.100 mm / 450 mm	965 mm / 1.100 mm / 450 mm	1.480 mm / 1.100 mm / 450 mm	1.480 mm / 1.100 mm / 450 mm	1.565 mm / 1.100 mm / 450 mm	1.480 mm / 1.100 mm / 450 mm
Weight	Weight	92,2 kg	92,2 kg	106,3 kg	181,5 kg	181,5 kg	162,5 kg	181,5 kg

Limitations

Current Consumption (max)	Current Consumption (max)	11,5 A	11,5 A	14,9 A	13,5 A	13,5 A	21,3 A	13,5 A
In-Rush Current	In-Rush Current	11,5 A	11,5 A	14,9 A	13,5 A	13,5 A	21,3 A	13,5 A
Temperature Heating (min - max)	Temperature Heating (min - max)	20 - 55 °C	20 - 55 °C	20 - 55 °C	20 - 55 °C	20 - 55 °C	20 - 55 °C	20 - 55 °C
Distance (Indoor to Outdoor Unit) (max)	Distance (Indoor to Outdoor Unit) (max)	40 m	40 m	40 m	40 m	40 m	40 m	40 m
Temperature Domestic Hot Water	Temperature Domestic Hot Water	55 °C	55 °C	55 °C	55 °C	55 °C	55 °C	55 °C
Temperature Domestic Hot Water (With Back-Up Heater)	Temperature Domestic Hot Water (With Back-Up Heater)	75 °C	75 °C	75 °C	75 °C	75 °C	75 °C	75 °C
Height Difference (Indoor to Outdoor Unit) (max)	Height Difference (Indoor to Outdoor Unit) (max)	30 m	30 m	30 m	30 m	30 m	30 m	30 m
Volume Installation Room (when Refrigerant Factory Filling) (acc. to EN 378) (min)	Volume Installation Room (when Refrigerant Factory Filling) (acc. to EN 378) (min)	3,4 m³	3,4 m³	5,4 m³	8,2 m³	8,2 m³	8,2 m³	8,2 m³

¹EN 60529

Air-to-Water Heat PumparoTHERM Split

No limitsHighly flexible outdoor installation.

No limits

Reliable operationFrost protection by design: The split system advantage.

Reliable operation

Extremely quietComfort you can hardly hear.

Extremely quiet

Cool in summerActive cooling without the need for additional air conditioning units.

Cool in summer

Tailored settings to goAlways in control with myVaillant App.

Tailored settings to go

The right solution for every needCustomised hot water comfort.

The right solution for every need