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Rochester
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Air to Water Heat Pump (AWHP) estimating tool
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Why Vaillant geoTHERM air?
Because for more than 135 years
Vaillant has set the standard in the
heating market, creating products
that have revolutionised the industry.
As one of Europe’s leading
heating and renewable technology
manufacturers, innovation comes as
second nature. Our products boast
the highest energy eficiency ratings
and the lowest emissions, and come
with an enviable reputation for
performance, quality and reliability.
Air to Water Heat Pumps (AWHP)
Our geoTHERM air AWHP system
is suitable for a wide range of
applications in new build properties
and refurbishments. They also have
high energy eficiency ratings and
utilise minimal ozone depleting
potential (ODP) refrigerants. Due to
its high energy eficiency, it is more
environmentally friendly than most
conventional heating systems.
How the Vaillant geoTHERM air works
Getting the most from your
heat pump
Vaillant’s air to water heat pumps
work on a similar principle to a
refrigerator. The geoTHERM air will
self-manage the temperature of your
home ensuring your comfort. In order
to gain maximum eficiencies from
your heat pump system, simply set
the required temperature and let the
intelligent controls do the rest.
Air source heat pumps use energy
stored in the air and convert this to
heat for space heating and hot water
production. Low temperature energy
from the air is passed through a CFC
free refrigerant cycle, which converts
this energy to higher temperatures
for use inside the home.
Beneits of heat pump technology
Eficient use of energy – for every
1kW of electricity used to operate
the heat pump provides up to
4kW of heat to the property
Provides space heating and
hot water
Proven, reliable technology, from
experienced heating manufacturer
The heat pump cycle:
1. Heat withdrawn from the air is
transferred to the refrigerant. The
refrigerant absorbs the heat and
changes from a liquid to a gas.
2. The gaseous refrigerant is then
passed through a compressor.
As the gaseous refrigerant is
compressed, its temperature
increases further.
3. The heat from the refrigerant is
now directly transferred to the
heating circuit. The refrigerant is
cooled down and returns to a
liquid form.
2
Compressor
Evaporator
1
3
Condenser
Fan
Heating
system
Expansion
valve
4. In the expansion valve, the
refrigerant is then decompressed
and cools down further so that it
will be able to re-absorb heat from
either the air or the ground.
4
The heat pump cycle
5
*When commissioned by a Vaillant service
engineer or approved agent
2
geoTHERM air 7kW
geoTHERM air 12kW and 15kW
3
The monetary cost of
The environmental impact of
heating your home
Amazingly, domestic heating generates almost
a third of all the carbon emissions for the UK.
Whether you’re concerned for the environment
or just the cost of your fuel bills as energy prices
heating your home
Air to water heat pumps can help reduce your carbon
footprint by lowering your home’s fuel consumption
for heating and hot water. This largely depends on
the fuel you‘re replacing but energy eficient solutions,
soar, a sustainable heating solution such as a heat
pump offers beneits for all.
Estimated annual cost
Estimated annual CO2 emissions
£
1800
1600
1400
1200
1000
800
600
400
200
0
Tonnes
9
8
7
6
5
4
3
2
1
0
Ground Source Heat
Pumps (GSHP)
Air to Air Heat
Pumps (A2AHP)
Air to Water Heat
Pumps (AWHP)
Bio-mass
Calculations based on a 120m2 house built between 1990-2000 with an annual usage of 14900kW
4
Oil
LPG
Electricity
Ground Source Heat
Pumps (GSHP)
Air to Air Heat
Pumps (A2AHP)
such as Vaillant‘s heat pumps, provide a great way
of reducing energy consumption while still fulilling
the heating and hot water requirements for a
modern home.
Air to Water Heat
Pumps (AWHP)
Bio-mass
Oil
LPG
Electricity
Calculations based on a 120m2 house built between 1990-2000 with an annual usage of 14900kW
5
Heat loss in kW (A)
Which geoTHERM air do I need?
No house upgrade
Total m2
In order to get the most out of sustainable
heating solutions such as heat pumps,
every effort must be taken to fully
insulate your property to minimise
your heating requirements.
Intelligent controls ensure your system
will run at its optimum levels, however
your system should be speciied at peak
winter requirements to ensure year
round comfort.
How to use the guide
Using table A (see page opposite),
determine the estimated heat loss from
your property, taking into consideration
the year of build. The value in the table
will tell you the amount of kWs required
from the ASHP and will indicate to you
which geoTHERM air you require
– see table B.
2
For example, a property built in 1996 (no house upgrade required) with an area of 80m will have a heat loss igure of
6.4kW (A). Looking at table B the heating requirement is between 4.5-7.9kW indicating that you need a geoTHERM air 12kW.
It really is that simple.
Year
70
80
90
100 110
120
130
140 150
1970-1995 (100W/m2)
7
8
9
10
11
12
13
14
160
170
180 190
200 210
220 230 240 250 260 270 280 290 300 310
1996-2005 (80W/m2)
5.6
6.4
7.2
8
8.8
9.6
10.4
11.2
12
12.8
13.6
14.4
15.2
2006-2010 (50W/m2)
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
13.5
14
14.5
15
2010
2.8
3.2
3.6
4
4.4
4.8
5.2
5.6
6
6.4
6.8
7.2
7.6
8
8.4
8.8
9.2
9.6
10
10.4
10.8
11.2
11.6
12
160
170
180 190
(40W/m2)
12.4
320 330 340 350 360
12.8
13.2
13.6
14
14.4
House upgrade for double glazing and loft insulation
Total m2
70
80
90
100 110
120
130
140 150
1970-1995 (85W/m2)
5.95 6.8
7.65 8.5
9.35 10.2
11.05 11.9
12.75 13.6
14.45 15.3
200 210
220 230 240 250 260 270 280 290 300 310
1996-2005 (70W/m2)
4.9
5.6
6.3
7
7.7
8.4
9.1
9.8
10.5
11.2
11.9
12.6
13.3
14
14.7
15.4
2006-2010 (50W/m2)
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
13.5
14
14.5
15
2010
2.8
3.2
3.6
4
4.4
4.8
5.2
5.6
6
6.4
6.8
7.2
7.6
8
8.4
8.8
9.2
9.6
10
10.4
10.8
11.2
11.6
12
(40W/m2)
12.4
320 330 340 350 360
12.8
13.2
13.6
14
14.4
House upgrade for double glazing, loft insulation and cavity wall insulation
Total m2
70
80
90
100 110
120
130
140 150
160
170
180 190
200 210
1970-1995 (70W/m2)
4.9
5.6
6.3
7
7.7
8.4
9.1
9.8
10.5
11.2
11.9
12.6
13.3
14
220 230 240 250 260 270 280 290 300 310
1996-2005 (60W/m2)
4.2
4.8
5.4
6
6.6
7.2
7.8
8.4
9
9.6
10.2
10.8
11.4
12
12.6
13.2
13.8
14.4
15
2006-2010 (50W/m2)
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
13.5
14
14.5
15
2010
2.8
3.2
3.6
4
4.4
4.8
5.2
5.6
6
6.4
6.8
7.2
7.6
8
8.4
8.8
9.2
9.6
10
10.4
10.8
11.2
11.6
12
(40W/m2)
12.4
320 330 340 350 360
12.8
13.2
13.6
14
14.4
Auxiliary heater required for peak heating requirements (-3°C and below)*
Which geoTHERM air do I require? (B)
Heating output
AWHP models
Page
0 - 4.85kW
geoTHERM air 7kW
10
4.5 - 7.9kW
geoTHERM air 12kW
11
7.4 - 9.06kW
geoTHERM air 15kW
11
This estimating tool is to be used as a guide only and does not replace a full heat loss calculation for your property. Vaillant will not accept
responsibility for the mis-sizing of your heating system. This is only to be used as an estimating guide. Please contact Vaillant for more details.
6
*Auxiliary heater not supplied by Vaillant.
7
Available power geoTHERM air range
Outdoor temp
350 Flow
-5
-3
-0
2
7
kW
CoP
kW
CoP
kW
CoP
kW
CoP
kW
CoP
7kW
4.55
2.71
4.85
2.79
5.14
2.94
5.41
2.99
7.20
3.90
12kW
7.40
2.75
7.90
2.85
8.47
3.00
8.72
3.11
11.82
3.90
15kW
8.31
2.62
9.06
2.85
9.81
3.08
10.20
3.20
14.50
4.06
kW
CoP
kW
CoP
kW
CoP
kW
CoP
kW
CoP
7kW
4.45
2.28
4.72
2.35
5.11
2.42
5.38
2.55
7.40
3.16
12kW
6.96
2.24
7.38
2.33
8.03
2.42
8.45
2.61
11.38
3.03
15kW
7.90
2.10
9.06
2.36
9.80
2.48
10.20
2.60
14.00
3.21
kW
CoP
kW
CoP
kW
CoP
kW
CoP
kW
CoP
7kW
4.24
2.02
4.50
2.10
4.88
2.20
5.14
2.34
6.71
2.68
12kW
7.06
1.92
7.57
1.99
8.04
2.08
8.47
2.20
11.04
2.50
15kW
7.60
1.80
8.52
2.00
9.23
2.08
10.20
2.60
13.90
2.82
Outdoor temp
450 Flow
-5
-3
-0
2
7
Outdoor temp
550 Flow
-5
-3
-0
2
7
8
Innovation in detail
The geoTHERM air range of heat
pumps provides maximum comfort
and eficiency, combined with simple
installation, smooth operation and
advanced diagnostics.
geoTHERM air
geoTHERM air remote control
As the outside air temperature drops the amount of energy the heat pump can extract decreases meaning
the heating output will decrease to ensure end-user comfort at peak heating times. Vaillant recommends
that the sizing of the heat pump is done at -5°C.
All geoTHERM air models are
equipped with a self-diagnostic
tool and intelligent control for
optimisation of the system.
The geoTHERM air beneits from our
Piharmonic function, making it one
of the quietest heat pumps available.
it also comes as a complete and
compact outdoor unit, with a sealed
refrigerant circuit that means no
refrigerant handling is required.
Our products are all always designed
with end user comfort in mind so you
can be sure that a Vaillant heat pump
is the right choice for your home.
Vaillant geoTHERM air at a glance:
Monobloc unit – sealed refrigerant
circuit, which means no F-Gas
refrigerant handling qualiication is
required for installation
High eficiency R410a low ozone
depletion potential refrigerant
DC inverter - extra power at peak
times and highly eficient for
standard operation
Intelligent compressor
management - maximises total
system eficiency
In-built weather compensation
- permanent monitoring of the
outside temperature to adapt the
heating system output to maintain
the desired temperature
Maximum low temperature of 600C
Single phase 230v electric connection
Vaillant Piharmonic function
Innovative fan design - to maximise
air low and minimise noise
9
Technical speciication
geoTHERM air 7kW
geoTHERM air 7kW
geoTHERM air 12kW and 15kW
geoTHERM air 12kW
geoTHERM air 15kW
Description
Min. operating outside temperature (in heating)
Max. operating outside temperature (in heating)
-200C
300C
Description
Min. operating outside temperature (in heating)
Max. operating outside temperature (in heating)
-200C
300C
Description
Min. operating outside temperature (in heating)
Max. operating outside temperature (in heating)
-200C
300C
Speciications, with radiators:
(low: 450C, return: 400C, outside dry temperature (wet) 7(6)0C)
Heating output
Power input
Rated electrical current
COP* A7(6) W45-40
7.4kW
2.32kW
10A
3.18
Speciications, with radiators:
(low: 450C, return: 400C, outside dry temperature (wet) 7(6)0C)
Heating output
Power input
Rated electrical current
COP* A7(6) W45-40
12.9kW
4.2kW
18.5A
3.03
Speciications, with radiators:
(low: 450C, return: 400C, outside dry temperature (wet) 7(6)0C)
Heating output
Power input
Rated electrical current
COP* A7(6) W45-40
14kW
4.4kW
19A
3.21
Speciications, with underloor heating:
(low: 350C, return: 300C, outside dry temperature (wet) 7(6)0C)
Heating output
Power input
Rated electrical current
COP* A7(6) W35-40
7.2kW
1.82kW
8A
3.96
Speciications, with underloor heating:
(low: 350C, return: 300C, outside dry temperature (wet) 7(6)0C)
Heating output
Power input
Rated electrical current
COP* A7(6) W35-40
11.9kW
3.01kW
13A
3.94
Speciications, with underloor heating:
(low: 350C, return: 300C, outside dry temperature (wet) 7(6)0C)
Heating output
Power input
Rated electrical current
COP* A7(6) W35-40
14.5kW
3.6kW
15.6A
4.06
Refrigerant circuit:
Quantity of refrigerant
1.81kg
Refrigerant circuit:
Quantity of refrigerant
2.485kg
Refrigerant circuit:
Quantity of refrigerant
3.385kg
Heat pump circuit:
Nominal water low rate in heating mode
Minimum water low rate
Maximum low temperature setting (in heating)
Heat pump water volume
1200 l/h
500 l/h
600C
1.2 litre
Heat pump circuit:
Nominal water low rate in heating mode
Minimum water low rate
Maximum low temperature setting (in heating)
Heat pump water volume
2100 l/h
500 l/h
600C
2.3 litre
Heat pump circuit:
Nominal water low rate in heating mode
Minimum water low rate
Maximum low temperature setting (in heating)
Heat pump water volume
2500 l/h
500 l/h
600C
2.3 litre
Electrical:
Supply voltage/frequency
Maximum absorbed power (p max)
Maximum absorbed current (l max)
1/N/PE 230V 50Hz
2.7kW
14A
Electrical:
Supply voltage/frequency
Maximum absorbed power (p max)
Maximum absorbed current (l max)
1/N/PE 230V 50Hz
5.1kW
23A
Electrical:
Supply voltage/frequency
Maximum absorbed power (p max)
Maximum absorbed current (l max)
1/N/PE 230V 50Hz
5.1kW
20A
Dimensions:
Height
Width
Depth
Ø Water circuit connections
Nett total weight
Sound power level: overall exterior noise
(according to EN 12102 and EN ISO 9614-1)
821mm
908mm
326mm
1”
71kg
64dBA
Dimensions:
Height
Width
Depth
Ø Water circuit connections
Nett total weight
Sound power level: overall exterior noise
(according to EN 12102 and EN ISO 9614-1)
1363mm
908mm
326mm
1”
105kg
67dBA
Dimensions:
Height
Width
Depth
Ø Water circuit connections
Nett total weight
Sound power level: overall exterior noise
(according to EN 12102 and EN ISO 9614-1)
1363mm
908mm
326mm
1”
130kg
68dBA
*Coeficient Of Performance (according to EN 14511)
10
11
Part numbers and prices
Product
Heating (kW)*
Article number
Price
geoTHERM air
7kW
0010013142
£3,050
geoTHERM air
12kW
0010013143
£4,140
geoTHERM air
15kW
0010013144
£5,000
*Outputs stated in accordance with EN14511 (A7/W35)
12
13
Notes
14
Notes
15