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Vaillant - Renewables Range Presentation Kevin O’Leary Technical Sales Development Manager Bristol 19 th October 2011
Vaillant
- Renewables Range
PresentationKevin O’Leary
Technical Sales Development Manager
Bristol 19th October 2011
2
Renewables Range 2011
Flat plate solar system
recoVAIR / MVHR
Air to Air Heat Pumps
Ground Source Heat Pumps
Vacuum Tube Solar
collectors
Vaillant system solutions
Air to Water Heat Pumps
3
Get the basics right
Assess first so that you can make informed decisions
– Insulation, Insulation, Insulation
– Good System Control
– Weather Compensation
– Zoning
– Accurate Calculation Of Heat Requirements
– Ask for assistance
4
Base for calculation: 120Msq 1990-2000 semi-detached house with an annual usage of 14900kW
costs taken from energy saving trust website June 2011
Estimated running costs
5
Estimated annual Carbon emissions
Base for calculation: 120Msq 1990-2000 semi-detached house with an annual usage of 14900kW
emissions taken from energy saving trust website June 2011
6
Vaillant’s Heat Pump Range
7
Heat pumps – a change in the culture of heating
We all have heat pumps in our homes!
The fridge
– How often do you adjust the temperature in your fridge?
– How often do you turn your fridge on and off?
– To get the best performance and maximum efficiency from a heat pump turn it on, set the
required temperature and let the intelligent controls do the rest
– For maximum efficiency your heat pump needs to run for longer period of time at a low
rate. Matched to the heat requirement of the property
The amount of time your heating system runs may increase but so will the system
efficiency
8
What is the ‘Peak Heat loss’ of a property
– All heating designs use 2 reference points – indoor temp, and minimum outdoor
temperature for which the heating will be required (usually 20 C, and -3 C)
– This is the amount of energy needed to maintain 20 C inside at the coldest outdoor
conditions and depends on the property in question
–Some rules of thumb:
–New build house, built to current building regs – 40 watts/sq metre
–New build house, built to 2006 regs – 50 watts/sq metre
–Post 1990’s house with cavity wall and loft insulation – 80 watts/sq.metre
–1970 – 1990 home with good insulation levels – 100 watts/sq metre
These rules of thumb will give a ‘rough’ indication as to the energy
required at peak times (ie -3 C)
20.0ºC-3ºC
9
General Installation Considerations
Heat Loss
Accurate calculation of the heat loss for
the property is essential for any Heat
Pump installation be it air source or
ground source.
– Reduce the energy requirements
before installing a Heat Pump
– Cavity walls, loft insulation, double
glazing, draft proofing
– Under-sizing will mean at times the
Heat Pump will not meet the heating
requirement.
Correct sizing can only be achieved with a full heatloss calculation
10
Heat pump efficiency – Coefficient of performance (CoP)
Heat into heating
system
1kW 4kW
3kW
‘Free’ heat from
external air
Heat pump efficiency is stated as the
Coefficient of Performance (COP)
Heat output (kW)
COP = -------------------------------
Power consumed (kW)
In the example above the COP = 4/1 = 4 (i.e. 400% efficient)
so you get 4kW of heat for 1 kW of electrical power consumed
Electrical power
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Air to water heat pump performance – COP
At lower ambient temperatures and at peak electricity rates an AWHP can actually cost more to run than a high efficiency gas boiler – It is essential to ensure that air to water heat pumps
are applied correctly
– Typically electricity is 3x more expensive than gas
– It follows therefore that if a heat pump were to be 3x more efficient than a boiler the
running costs per kW would be the same
– So when heat pump COP is 2.7 (boiler at 0.9) costs are equal and when below 2.7 the
boiler is actually less expensive to run
1.50
2.00
2.50
3.00
3.50
4.00
4.50
-15 -10 -7 -2 2 7
Outside temperature
CO
P
30ºC 35ºC 40ºC 45ºC 50ºC
12
General Install Considerations
Heat emitters
Underfloor heating
– Runs at low flow temperatures for long periods of time which is
ideal for heatpump systems.
However they are slow to react and not suitable for all
installations.
Panel Radiators
– Wet radiator heating systems traditionally run at high flow
temperatures for short busts of heating which is unsuitable for
heat pump systems.
However if the radiators are correctly size to suit a lower flow
rate and run for longer periods of time they will run efficiently
with a heatpump system and are quicker to react to a heating
need than an under floor system.
Fan assisted radiators
– These are manufactured to run with a low flow temperatures
and are quicker to react compared to underfloor and panel
radiators
However these radiators need a power supply to run the fans
and are more expensive than traditional radiators
Heat emitter selection and the heat pump flow temperature have a big effect on performance. Higher temperatures = Lower efficiencies
13
geoTHERM Ground Source Heat Pumps
14
geoTHERM – Product overview
Heat pump type
1-family
Houses
2-family
Houses
Multi-
Dwellings
DHW
Cylinder
Cooling
Heat output 6-8-10 kW 14-17 kW 22-46 kW
Electrical supply 230V 400V 400V
geoTHERM exclusive
geoTHERM *
geoTHERM *
* Optional external accessory required
15
Product features
– Weather-compensated as standard
– Flow temperature up to 62 C
– Built-in electric auxiliary (back-up) heater;
– Sensor-controlled sealed refrigerant circuit
– Environmentally friendly refrigerant R 407C (ODP - ozone depletion
potential is zero)
– Durable scroll compressor with 10 year warranty
– Easy installation with all important components integrated
geoTHERM Ground Source Heat Pumps
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Additional features:
– Integrated 175 litre DHW stainless steel cylinder
– Passive cooling supplied as standard allows summer
cooling when used with under floor heating system
– Split mounting concept for easy installation – heat
pump module and hot water cylinder can be installed
separately to reduce handling weight and volume
Heat pump for heating, DHW and cooling - geoTHERM exclusive
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Considerations
– Capital Cost of Installation
– Space for Equipment
– Space for ground Array
– Single phase electricity
geoTHERM Ground Source Heat Pumps
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climaVAIR air to air heat pump range
– Suitable for all electric properties
– Retro fit or new build
– Single and multi room solutions
– Includes four modes: Heating, cooling, fan
circulation & De-Humidification.
– Includes three stage air filtration – ideal for allergy
sufferers:
– Dust: Removes small particles of dust & debris
from atmosphere
– Anti-germ: Neutralise bacteria & germs
– Carbon filter: Removes smells
– Efficient heating
– Versatile room mount options
– Quiet operation
– Infra red remote control
Install Photos – Ocean HA, Cornwall
Birmingham City Council – High Rise Install
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Bristol City Council Installation
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Considerations
– Number of Indoor Units (max 4 per system)
– Must be Qualified Engineers (F Gas)
climaVAIR Air to Air Heat Pumps
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geoTHERM air 7kW geoTHERM air 12kW
geoTHERM air 15kW
geoTHERM air; air to water heat pump
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Reasons for selecting an air to water heat pump
Will save the end-user money compared to Oil, LPG and standard electric heating systems
– Oil and LPG price volatility is leading to an increase in interest in cost effective alternatives
particularly in rural locations
– Eliminates need for on-site fuel storage, e.g. LPG, oil or biomass
– Excellent running costs compared to alternatives such as standard electric, LPG or oil
– Excellent carbon savings compared to Oil and LPG
– Less external work (and cost) compared to GSHP,
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Three way
valve DHW
priority
AWHP Controller/
Programmable room
thermostat for
heating
(Optional) Single channel
programmer
for DHW preparation
Vaillant DHW Relay
The new Vaillant Air/Water monobloc heat pump
System Schematic - 1 Heating Zone & Hot Water
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Specifying Air to Water Heat Pumps
When correctly applied air to water heat pumps can significantly reduce CO2 and energy use – Get the install right and you can reap the benefits
– A number of important factors that need to be considered when specifying an air to water heat pump
– AWHP are not part of General Permitted Development rights, you will need to check if permission is
needed
– Consider the possible noise nuisance of outdoor units (neighbour complaints)
– Maximum heating output for domestic applications is around 15kW ( 230V)
– Maximum output temperature is around 55ºC - 60 C
– Efficiency decreases with higher output temperatures and lower ambient temperatures, care must be
taken when applying an AWHP to a high temp radiator system
– When installed as primary heat source, you need to correctly size radiators or specify UFH or fan
assisted radiators
– Currently standard electricity is 3 times more expensive than gas, therefore a heat pump has to be 3
times more efficient before it is cheaper to operate
28Vaillant’s unique Piharmonic® Noise Reduction Function
Piharmonic Noise Reduction Function
Recommendation of WHO
World Health Organisation
Piharmonic® Function
No
ise
Em
iss
ion
VW
L S
dB
(A)
13,8 m2,4 m 7,3 m
Minimum distance to outdoor unit [m]
Without With Piharmonic®
FunctionInstallation situation:
4,3 m
Recommendation for
domestic properties
Permitted development
level at 1 metre
Nachtbetrieb
20
25
30
35
40
45
50
55
60
0 5 10 15 20 25 30
Abstand zur Außeneinheit [m]
Sc
hall
dru
ck
peg
el d
B(A
)
Schalldruckpegel TA-Lärm Anforderung Logarithmisch (Schalldruckpegel)
Nachtbetrieb
20
25
30
35
40
45
50
55
60
0 5 10 15 20 25 30
Abstand zur Außeneinheit [m]
Sc
ha
lld
ruc
kp
eg
el
dB
(A)
Schalldruckpegel TA-Lärm Anforderung Logarithmisch (Schalldruckpegel)
Recommendation of WHO
World Health Organisation
Piharmonic® Function
No
ise
Em
iss
ion
VW
L S
dB
(A)
13,8 m2,4 m 7,3 m
Minimum distance to outdoor unit [m]
Without With Piharmonic®
FunctionInstallation situation:
4,3 m
Recommendation for
domestic properties
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Design Service
– Good planning and strong designs are key to installing a good Air to Water Heat Pump
system and meeting legislation
– Vaillant high quality design service can develop Heat Pump designs tailored to suit your
individual site requirements
– Bespoke packages for social housing can be created to include more demanding
standards for residents safety such as up rated mixing valvesand other system compoents
– Designs are provided in a personalised design booklet, including proposed design layout,
schematic drawings, technical data sheets and wiring drawings
– State of the art CAD technology used
– Fully indemnified design
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Considerations
– Available Power; Max output 15kW (9kW at -5C)
– Existing system considerations
– Siting considerations
geoTHERM air – Air Water Heat Pumps
Project Support
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Vaillant Support Services
- Training & Technical Support
Strong back-up services are essential for installers and specifiers in the field of renewables
– Experienced technical support over the phone –
– Accredited engineers available for on the job assistance 8.30am – 5.30pm.
– Full local support from Vaillant Sales Managers - working closely with customers to support
everything needed throughout the specification and installation
– Nationwide spares network – 30 key stockists at 450 locations around the UK
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Vaillant Support Services
Product Training
Marketing leading training for market leading products
– Vaillant product training is available in our Centres of Excellence
around the country
Belper (nr Derby)
Cambridge
Elland (nr Leeds)
Bristol
Slough
Edinburgh
– Hands on training delivered by experienced trainers in bespoke
training facilities
– MCS accreditation training and support
– In-depth and accredited training on G3 unvented cylinders BPEC in
solar thermal and GSHP, CPA1 combustion analysis
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Vaillant Support Services
- Renewables Exhibition Vehicle
– Mobile trailer for staff and tenant information events
– The vehicle contains detailed information on the Vaillant renewables offering,
including solar thermal, ground source heat pumps, air to water heat pumps and air
to air heat pumps
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– Demystifying our heat pumps
– Pocket estimating guides for installers, which guide
customers through the process of choosing the correct
Vaillant product for a property
Vaillant Support Services
- System Selection tools
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– Outlines considerations when purchasing solar and delivers one solution at the outcome stage – These
calculators are being developed and will be available in July
– Calculators available on the Vaillant website allowing easy calculation and purchase
considerations for renewable products
– We will have calculators for the following products
– Solar
– GSHP
– AWHP
– RHI
Vaillant Support Services
- Renewables Calculators
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Why Vaillant?
– Vaillant over 135 years experience in Heating and Hot water,
– Product and Services renowned for excellent quality and reliability
– Marketing leading understanding of the complete heating systems
– With our range of renewable products which already include Solar Thermal, Ground Source Heat
Pumps, Air to Air heat pumps and MVHR Vaillant offer the Total System Solution
– We create products and support systems to meet the needs of end-user comfort not just the theory of
what the property needs.
– All supported with a practical, flexible service designed to support installers, specifiers, social housing
providers, merchants and homeowners with clear product, market and business advice
Because Vaillant Thinks ahead
Questions & Answers
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Thank you
for your attention!
