Indoor swimming pool air conditioning
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Indoor swimming pool
air conditioning
Private swimming pool | Hotel swimming pool | Saline swimming pool
Sport swimming pool | Recreational bath | Sauna area | Heat recovery from waste water
Menerga:
Minimal EnergyApplication
Contents
Complex buildings accommodate a large and investors to save money – day after
number of different room types and day, month after month, and year after
special architectural features. Menerga year. The investment costs are amortised
remains on top of things and finds the within a very short period.
Menerga philosophy 1 perfect solution for any project. With over
40,000 installations and systems world- We will be happy to produce reference
Menerga Customer Service 1 wide, we cover almost every type of lists for the building types in which you are
building. When searching for the best interested. And in the event that you sur-
Core competencies 2 solution, we jointly analyse the conditions prise us with a totally new project, we will
at the location. In this manner, we and our find the right solution for any requirements.
Requirements 3
partners have jointly implemented With our eyes sharpened by countless
countless projects, which have received special projects, e.g. the "ALMA" telescope
Relevant values 4
many awards for energy efficiency. We are facility in the Atacama desert, or the
Private swimming pools 5 proud of this. But what we really like "Princess Elisabeth Station" at the South
about this is the knowledge about jointly Pole, we will be happy to accept the
Hotel/therapy pools 7 developed solutions, which allow operators challenge.
Saline swimming pools 9
Sport swimming pools 11
Recreational baths 13
Sauna area 15
Heat recovery from waste water 17
Experts at your service
Technical Customer Service
Experts at your service, anytime, any- offered by the Menerga Technical
where. With a comprehensive range of Service covers everything from the test
services and an extensive service net- run at the factory and on-site commis-
work throughout Europe, the Menerga sioning, through periodic servicing, repairs,
Technical Service guarantees the most remote maintenance and remote diagno-
economical and advanced services over sis by means of direct dial-up options, to
the entire life cycle of your system, from the refurbishment and optimisation of
the day of commissioning onwards. the systems.
More than 120 service technicians at We supply you with the right service
various service centres, and 40 service concept, customer-specific and
engineers at the Menerga locations, pro- application-specific. In the event of an
vide a professional all-inclusive service, emergency, you can reach us 24 hours a
with the objective of achieving high day on the following telephone number:
availability of the systems and a maxi- +49 208 9981-199
mum of efficiency. The range of services
1 Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com
Core competencies
Our areas of application
Indoor swimming pool air conditioning
Private swimming pools, public swimming pool halls, adventure pools, sports pools,
saline baths, hotel pools, school pools, therapeutic pools and many more.
Last not least: heat recovery from waste water.
The air conditioning of swimming pool halls is one of the most challenging areas for air
conditioning. Here we started 30 years ago, this is where we grew up, and we are
now market leaders and innovation pioneers. Our special competency lies in the high
heat recovery efficiency lowering operating costs, while robust system design
© City of Rijeka
overcomes adverse conditions.
Comfort air conditioning
Low-energy buildings, offices, museums, sports facilities, schools, clinics, hotels, banks,
historical buildings and many more.
With comfort air conditioning, the focus is on people. Our technology is based on the
respective requirements of a project, but simultaneously always looks for the most
efficient method with the lowest consumption of energy. For example, we cool with
water in order to save electrical energy, or make use of sorption-based air conditioning,
with which you can carry out dehumidification by means of heat, e.g. from solar
thermal energy or process waste heat. It is even possible to store excess solar heat
for an indefinite period without any losses for the purposes of dehumidification.
Process air conditioning and chilled water
Air conditioning of data centres, industrial drying, process cooling, air conditioning for
warehouses, cold water generation and much more.
Last not least: heat recovery from waste water.
The process air conditioning system must ensure that defined air conditions prevail in
a defined situation. Menerga systems guarantee reliable drying, cooling or heating. In
the field of chilled water, our systems reliably provide the desired water conditions. In
this sector, too, saving energy through the use of intelligent technology is our top
priority.
Special solutions
Research projects, special applications
Challenges and unusual projects are the milestones of Menerga's company history.
Since the foundation of our company, we have designed solutions for each individual
customer. We enjoy taking on challenging projects, knowing that these are the
projects that bring valuable experience, and which also improve the filter class of our
© polarfoundation.org
"standard" systems.
Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com 2
Indoor Swimming Pool Air Conditioning
Requirements: Precision technology round-the-clock
The air conditioning of an indoor swim- Irrespective of the intensity of use of the automatic aeration, dehumidification and
ming pool hall fulfils two main tasks: swimming pool hall, the high level of water heating of the rooms, always within the
1st The creation of an ideal pleasant evaporation requires 24-hour operation most economical operating point. For
climate for sportsmen and women of the air conditioning system, ideally intelligent air distribution we offer slot
and wellness fans. regulated by an intelligently designed diffusers, which keep large window
2nd The continuous dehumidification of and controlled system. fronts mist-free. And we set our sights
the air in the swimming pool hall in not only on the swimming pool hall
order to protect the structure of the Indoor swimming pool air conditioning is itself: with our systems you also create
building against damage from considered to be an extremely demanding the ideal climate in neighbouring areas
moisture over the long term. discipline, a discipline in which Menerga such as the restaurant, sports area or
is the market and innovation leader. Our changing rooms. Rely on our expertise!
systems ensure the customised and fully
Menerga
KLIMA-PLUS: Indoor swimming pool
Menerga systems are developed and
manufactured to have long service
lives and for operation with the lowest
1 2 3 4 5 6
possible operating costs. We at Mener-
ga always think things through – that
one famous step further – and focus
Slot diffuser
on your project and all its special
requirements. You yourself profit from Return air Supply air
this doubly. This is because anyone
DDC
who decides on efficient, first-class
technology not only saves on operat-
Plant room
Outside air
ing costs, but also benefits in terms of
environmentalism and independence. Exhaust air
3 Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com
Relevant values
At the end of the day it is the costs that count!
Swimming pool halls are usually operated while operating a totally reliable air
at an air temperature between 30°C and conditioning system. Menerga systems Your advantages:
34°C in order to provide the lightly clad are designed to be energy-efficient from
bathers with a comfortable environment. the ground up and equipped with an Intelligent, innovative and highly
For this reason, the swimming pool hall air intelligent control system which always efficient systems and concepts
is almost always warmer than the outside selects the optimum operating mode
air. Usually, ventilation of the swimming automatically in line with requirements. Robust equipment design with
pool hall means a continuous loss of Every day the systems save not only corrosion-free heat exchangers
energy. A good heat recovery system and energy, but also valuable resources. Due made of polypropylene
regulation in line with requirements pay to their high level of efficiency, they are
off within a very short time. Fact is: the ideal for use in swimming pool halls in Very low operating costs
most important aspect with respect to the accordance with the passive building
standard. All Menerga systems are Utilisation of renewable energy sources
costs of a swimming pool is not the
investment costs, but the operating manufactured to be robust and durable
Integrated control system
costs. Anyone who makes an intelligent and guarantee long and trouble-free
choice may save over the long term operation.
Compact, space-saving integrated units
All systems tested in factory trial runs
Ready for installation delivery
Excellent maintenance concepts
Representatives throughout Europe
Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com 4
Good Climate in Private Swimming Pools
Requirements
Private swimming pools generally have machine to cool the air down to the dew A central air conditioning unit is usually
short periods of activity and very long point and condensing the water out of installed in a plant room outside the
"resting" phases. During the activity the air. The dehumidified air then has to actual swimming pool hall and therefore
period, the hall is usually used by only a be reheated in a heating coil in order to does not disrupt the swimming pleasure
few people. In other words: the condi- ensure a constant temperature level in neither visually nor acoustically. Intel-
tioning of the swimming pool hall air the swimming pool hall. A central air ligent air distribution through the use of
focuses on dehumidification and en- conditioning unit with a high level of heat slot diffusers keeps window fronts
suring that the desired temperature is recovery reduces these heating costs mist-free.
constantly maintained. With this level of significantly, with up to 80% of the heat
use, a continuous addition of fresh air is being recovered from the swimming pool A private swimming pool should always
often not required - a fact that keeps the hall return air. be planned individually. If the heating in
operating costs very low, particularly in a residential building is provided by a
the colder months. Central air conditioning units also allows domestic heat pump (low-energy), the
the admixing of outside air in the summer energy of the heat pump can also be
A central air conditioning unit has many months or even free ventilation. The used for the swimming pool air condi-
advantages compared to floor-standing swimming pool hall climate is improved tioning. Similarly, the utilisation of excess
solutions, for example. A floor-standing as a result and again operating costs can heat to heat the fresh water for the
unit dehumidifies the swimming pool be saved. swimming pool is also possible.
hall air through the use of a refrigerating
5 Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com
Examples from Technology Hits
Practice
Menerga fits!
The multi-functional compact systems of used to heat the fresh water for the
the ThermoCond 19, 23 and 29 series swimming pool via a pool water con-
have been specially designed for use in denser.
private swimming pools. The systems
are equipped with corrosion-free heat Depending on the equipment, the in-
exchangers made of polypropylene. In tegration of an existing domestic heat
contrast to the ThermoCond series for pump in the building is also possible.
public public swimming halls, the 19, 23 This is connected to the heating coil of
and 29 series operate for most of the the air conditioning unit. In most cases
© T. Phillippi
day with very high energy efficiency the low flow temperatures of the
levels in recirculation mode. The heat domestic heat pump of around 35°C are
Unit type: ThermoCond recovery efficiency is up to 80%. All not sufficient for heating the swimming
Private swimming pool in South Germany installations are complete systems with pool hall, which is why the heating coil
The private swimming pool appears to float intelligent controls which adapt them- is incorporated upstream of the air con-
above the roofs of the town. selves fully automatically to the condi- denser. In combination, the two systems
tions. ThermoCond 29 is also equipped heat the supply air very efficiently to the
with an integrated heat pump. required temperature level. The domes-
tic heat pump can be operated with an
Menerga systems use every resource optimum COP at unchanged low flow
available. Excess heat from the air con- temperatures.
ditioning system can, for example, be
For example:
Private swimming pool in South Germany
© fnoxx
Unit type: ThermoCond The owners could not imagine having a large glass fronts. The free cooling method
Private swimming pool
simple rectangular structure as a swim- of the system adds cool outside air from
Private swimming pool hall with spacious ming pool hall – which is why they asked the shady side of the building and thereby
wellness area for a simple, minimalist work of art to be lowers the indoor temperature at low
created. The swimming pool is surround- cost. The integrated heat pump also en-
ed on three sides by glass facades, which sures energy-efficient operation of the
enable unique integration into the en- swimming pool hall. The return air is de-
vironment. The pool area is accessible humidified, while the evaporation heat
from below, directly from the adjoining that is obtained is increased to a higher
residential building. The materials used temperature level in order to heat the
were almost exclusively natural. supply air or the water.
For air conditioning purposes, a Menerga System overview
Indoor swimming pool
air conditioning | Comfort
Process air conditioning air conditioning
| Chilled water generation
ThermoCond 29 with summer bypass is
used for free cooling and three-stage
© T. Phillippi
heat recovery. The necessary dehumi-
dification capacity was not the decisive System types
Unit type: ThermoCond factor in the design, but the airflow rate
Private swimming pool required to ensure that the glass facades ThermoCond 19 p. 6
A sumptuous wellness domicile with a remain mist-free. The air conditioning
luxurious ambience. unit provides free cooling in the summer ThermoCond 23 p. 6
- a relevant aspect, since the swimming
pool hall is heated very strongly by the ThermoCond 29 p. 6
Please refer to our latest catalogue for more details.
Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com 6
Photo: Anže Čokl / Bohinj Park Hotel***** / Unit type: ThermoCond
Good Climate in Hotel or Therapy Pools
Requirements
For the German Hotel and Restaurant rate of the rooms. Because news of a dehumidification of the swimming pool
Association DEHOGA, a hotel swimming good climate gets around – but unfortu- hall air in order to transport stale air out
pool is a precondition for achieving the nately, so does news of a bad one! This of the room. Here the focus is not only
classification of a five-star hotel. But for is why you should opt for a solution which on comfort, but also the performance of
smaller hotels with less "stellar ambitions", - through its energy-efficient mode of the personnel and bathers. Humid, cold
a swimming pool is also an important operation, e.g. recirculation mode that or stale air would reduce the success of
item of equipment for satisfied guests. adapts to requirements - saves costs the therapy - and the satisfaction of the
while at the same time ensuring perfect paying patients.
In itself, the swimming pool is of course air conditions.
not a guarantee of satisfaction. Because Clever operators invest in sophisticated
if instead of the desired "wellness oasis" Of equal importance are swimming pools technology in both the hotel and the
the guest finds a musty, dark swimming used for therapy purposes in care and therapy pools - technology which
area with cold water to bathe in, he or she health centres. These form the basis of creates a perfect climate, for example on
will certainly not decide to stay at this special course offers and increase the very hot days in the summer. The
hotel again. A good climate in a hotel attractiveness of the entire facility. Depen- investment costs pay off in two ways:
swimming pool is an important criterion ding on the level of occupancy of the through lower operating costs and
for retaining customers and can have a pool, a constant proportion of air from satisfied customers.
significant influence on the occupancy the outside is required in addition to the
7 Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com
Examples from Technology Hits
Practice
Menerga fits!
Who says that hotel swimming pools are are particularly suitable where the waste
uncontrollable consumers of energy? The heat of a combined heat and power system
first hotel swimming pool in Europe built can be used. Through the use of the fresh
in line with the Passive Building Standard water heater in the ThermoCond 38, it is
was constructed in 2010 at the Edelweiss possible to recover unused heat con-
Hotel in Wagrain/Austria – and it was of tained in the waste heat to increase the
course equipped with a Menerga system! temperature of the fresh water (see also
page 10). Both series achieve very high
© Klaus Bauer
Although in smaller hotels and nursing heat recovery efficiency levels which
homes the level of use is significantly keep the operating costs down. When the
lower in comparison to a recreational pool is not being used, they dehumidify
Unit type: ThermoCond bath, a system which through the addition the air in an energy-efficient manner in
Hotel EdelweiSS, Wagrain of a proportion of air from the outside recirculation mode and mix in the required
Sports and wellness paradise at the 4-star and a bypass installation should never- proportion of air from the outside in line
hotel in Salzburger Land, the first swimming theless be selected to provide good air with requirements during the activity
pool hall constructed in line with the passive conditioning and guarantee an ideal cli- phases. The systems start with an air
building regulations in Austria. mate in the summer months. Suitable volume flow of 2,500 m3/h.
systems are those of the ThermoCond 38
and ThermoCond 39 series. ThermoCond 39 Adjacent areas such as changing rooms,
is equipped with a power-adjustable heat massage or fitness rooms are air-condi-
pump. The systems of the ThermoCond 38 tioned with systems of the Dosolair,
series work with a very efficient counter- Trisolair or Resolair series (see also the
flow heat exchanger with a counterflow Comfort Air-conditioning brochure).
share of more than 80%. These systems
For example:
Unit type: Trisolair, ThermoCond 4-star hotel Edelweiss in Wagrain
Hotel Dollenberg
Exclusive 5-star superior hotel of the "Relais Hotel Edelweiss in Salzburger Land recovering heat from the return air from
& Chateau" group at an altitude of 650 m on offers a cosy four-star level of comfort, the sauna. The Ronacher ZT firm of
Dollenberg in the Black Forest. excellent cuisine and a cordial atmosphere architects, which was responsible for the
with Salzburg hospitality. The family owners planning, received the Energy Globe
have always placed great emphasis on Award Salzburg for this project.
the sustainable handling of resources.
This was continued with the redesign of System overview
Indoor swimming pool
air conditioning | Comfort
Process air conditioning air conditioning
| Chilled water generation
the spa area. Consequently, the first
swimming pool planned and designed in
line with the Passive Building Standard
was constructed in Austria. All structural
components conform to this highest
System types
© Europa-Park
standard of energy-efficient construction.
ThermoCond 38 p. 7
The dominant building material is wood
as a renewable domestic material. The
ThermoCond 39 p. 7
Unit type: ThermoCond timber-built spa area requires only 25%
Hotel Bell Rock in Europa-parc, Rust of the energy of a comparable spa area. Trisolair p. 8
4-star superior adventure hotel in the When the building technology was
Europe-Parc, the biggest theme park in the planned, it was decided to use two Dosolair p. 9
german speaking area. highly efficient ThermoCond systems.
One of the systems is also used for Resolair p. 11
Please refer to our latest catalogue for more details.
Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com 8
Good Climate in Saline Swimming Pools
Requirements
Saline swimming pools are becoming If you are planning to use saline in a fore advisable to use air-conditioning
increasingly popular in thermal baths, swimming pool, it is essential to inform technology with the highest possible
recreational baths and private swimming all of the parties involved of this at the level of heat recovery in a saline swim-
pools. The high salt content of the water earliest possible stage, as this requires ming pool, and if it is also available for
and air improves the oxygen intake by separate consideration of the entire public use to additionally provide an
the body, has an antibacterial effect and project and the materials to be installed. adjustment of the power in line with
is therefore said to alleviate a large number For example, a special anti-corrosive requirements.
of ailments. The salt-laden air possesses protection coat of the ventilator units is
strong negative ionisation, as a result of necessary.
which it is very healthy for the human
body as a bracing climate. But the Also in a saline swimming pool, the air-
aggressive constituents of the air conditioning technology operates 24
demand particular requirements from hours a day, partly in order to reliably
almost all of the materials – also with transport away the salt-laden return air
respect to the air-conditioning technol- and prevent the precipitation of the salt
ogy used. on the ceiling or glass fronts. It is there-
9 Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.comExamples from Technology Hits
Practice
Menerga fits!
The ThermoCond 38 series is particularly return air which cannot be recovered via
suitable for use in larger saline swimming the recuperative heat recovery system of
pools. At the heart of the system is a the air conditioning system. The use of
counterflow plate heat exchanger con- the fresh water heater minimises this
sisting of corrosion-free polypropylene, ventilation heat loss by using the energy
and all other components with additional contained in the return air to warm up
corrosion protection when used in a the make-up water of the pool. Direct
saline swimming pool. This series is use for the 28°C pool water is not
© Helmuth Rier
particularly suitable, as it achieves very possible without a heat pump owing to
high levels of efficiency of up to 95% the small difference in temperature,
even though no integrated compression which is why the Menerga system uses
Unit type: ThermoCond refrigeration system is used. In smaller the energyto heat up the fresh water
Terme di merano, Merano private swimming pools the Thermo- which is added to the pool water as
An elegant and architecturally very attrac- Cond 19 series is used, which is also required. The temperature of the fresh
tive natural oasis at the heart of the City of designed without a mechanical cooling water is normally 10 to 15°C. However
Merano. system. the water can be heated up to a
temperature of 28°C with the use of the
In order to further reduce the operating fresh water heater by using the waste
costs in a public swimming pool hall, the heat alone without a heat pump.
Menerga fresh water heater can be used
as an optional addition to units of the
ThemoCond 38 series. This enables the
use of the heat energy contained in the
Unit type: ThermoCond, Adsolair, Resolair
For example:
Agrippa swimming pool, Cologne Terme di merano, Merano
In the middle of Cologne city centre, the
swimming pool attracts sportsmen, wellness With the thermal bath in Merano, interior used in the thermal bath itself in order
friends and families. designer and architect Matteo Thun has to save energy - and above all water.
created a "natural oasis in the heart of These measures make it possible to
the city", which stands out due to its achieve considerable annual savings in
modern architecture, but nevertheless terms of operating costs.
harmonises well with the cityscape of
Merano. The glass architecture provides In total, three ThermoCond systems are
the visitor with a clear view of the sur- used at the Terme di Merano, which also
rounding mountain ranges. Clear lines in reliably air-condition the saline pool area.
the architecture, the use of natural stones The high level of heat recovery
and timbers for the construction, as well efficiency of the systems reduces System overview
Indoor swimming pool
as the use of regional products, are wit- the costs for heating the thermal
air conditioning | Comfort
Process air conditioning air conditioning
| Chilled water generation
ness to an understanding of and respect bath as well.
for nature.
Unit type: ThermoCond, Adsolair, Resolair
Saarow Therme, Bad Saarow Indoors, 25 different pools, including a System types
The thermal saline pool with underwater saline pool with underwater music, attract
geysers, flow channels and much more is the 350,000 annual guests to enjoy a ThermoCond 19 p. 7
considered to be one of the most attractive wonderful wellness experience. State-
in Germany. of-the-art environmental technology is ThermoCond 38 p. 7
Please refer to our latest catalogue for more details.
Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com 10Good Climate in Sports Pools
Requirements
In many sports pools, not only the water health of the athletes, draughts should the operators of the facility are usually
area takes up large parts of the swimming be avoided in the swimming pool hall local authorities or the state. The moder-
pool hall, but also grandstands and seats and changing areas. nisation of obsolescent air-conditioning
for spectators. In addition to the swimming technology often offers a considerable
pool hall itself, there are large changing Sports pools in which competitions are reduction in operating costs. New buildings
room and shower areas, usually a restau- held are usually of a larger size than which are planned and constructed from
rant and large entrance areas. ordinary sports and recreational baths. the beginning in line with passive building
Competition stadiums with 50-metre criteria, for example, can achieve energy
The swimming pool hall itself requires pools are the standard for national and savings of well over 50% compared to
efficient and reliable air conditioning. international events. With the high standard designs. In the planning of a
Only if the moist swimming pool hall air volumes of air present in the swimming sports swimming pool, future demands
is continually dehumidified is a comfort- pool hall, the air-conditioning technology should also be taken into account at
able climate for the spectators in the must also be of an appropriate size in planning stage.
grandstand also guaranteed. Spectators order to guarantee a consistently good
will not return if they break out in climate. The higher the volume, the more
a sweat owing to the high air humidity important is the efficiency of the fan
after 10 minutes during a swimming motors used. The operating cost factor
event. In order not to endanger the plays an important role in sports pools, as
11 Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.comExamples from Technology Hits
Practice
Menerga fits!
For the air conditioning of large swimming the equipment of the swimming pool,
pool halls, systems from the ThermoCond 38 comfort air conditioning units of the
series are ideal. They are equipped with Dosolair, Adconair, Adsolair or Resolair
a highly efficient counterflow plate heat series can be used to air condition the
exchanger consisting of polypropylene areas adjacent to the swimming pool
and achieve recovery efficiency levels of hall. Planned within the overall concept,
more than 95% with minimal pressure the systems complement one another
losses. excellently and create a good climate
© Stadt Rijeka
with the lowest operating costs. Infor-
ThermoCond 38 is a further refinement of mation on this can also be found in our
the systems used in the passive building Comfort Air-conditioning brochure.
Unit type: ThermoCond, AquaCond swimming pools of Lippe-Bad Lünen and
Kantrida Rijeka, Croatia Bambados. The overall efficiency of the In shower areas, the use of AquaCond
Olympic swimming stadium with a system can be further improved through devices recovers lost energy from warm
completely opening roof structure. the use of the optional fresh water waste water from the showers - an
heater (see also page 10). ThermoCond 38 investment which pays for itself within a
is available as an individual system with very short time (see also page 15).
an air volume flow of up to 31,000 m3 /h.
With multi-axis concepts, large swim-
ming sports arenas can also be air-con-
ditioned without difficulty. Depending on
For example:
Kantrida Rijeka, Croatia
Unit type: ThermoCond, Resolair
The Kantrida swimming pool complex in efficiency level of up to 90%. In addition,
Rijeka consists of two large Olympic com- the waste water from the pool water
National Zwemzentrum de
petition pools, a teaching pool as well as replacement system, showers and filter
tongelreep, Netherlands The largest
a children's pool and a pool for diving com- flushing system is used as an alternative
swimming centre in Europe serves amongst
other things for hosting national competitions
petitions and underwater diving schools. source of energy for the production of hot
One particular feature of the complex is water. In the project in Rijeka,
that the roof can be completely opened. thermal energy is not wasted
System overview
In the planning process for the plant neither in the exhaust air nor
Indoor swimming pool
air conditioning | Comfort
Process air conditioning air conditioning
| Chilled water generation
technology, the focus was mainly on very the waste water.
high levels of energy efficiency. The supply
of heat and electricity was therefore
provided by means of a combined heat
System types
and power generation system, mainly
© Bildagentur Zolles
from the complex's own combined heat ThermoCond 38 p. 7
and power station. Furthermore, each
swimming pool hall is dehumidified, ThermoCond 39 p. 7
ventilated and heated by a total of three
Adsolair p. 10
Unit type: ThermoCond, Adsolair, Dosolair ThermoCond air conditioning units in
Municipal swimming pool hall Vienna, order to create a pleasant indoor climate
Resolair p. 11
and avoid damage from moisture. Those
Austria Since it was reopened in 2011,
Vienna's largest swimming pool hall and responsible for the project therefore Adconair p. 13
the most up-to-date swimming pool hall in made exclusive use of highly efficient air
Austria. conditioning systems with a heat recovery AquaCond p. 14
Please refer to our latest catalogue for more details.
Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com 12Good Climate in Recreational Baths
Requirements
The cost-effectiveness of a recreational comparison to other operating costs of where the capacity of the system is
swimming pool depends on the number the pool. Continuous dehumidification of adapted to the number of the people
of visitors and daily utilisation levels. If the pool round-the-clock has to be en- present in the swimming pool hall. The
the visitor does not feel comfortable, he sured. The degree of dehumidification higher investment costs pay for them-
or she will not return or will only stay for varies between the active and "resting" selves by a major reduction in operating
a short period of time. The term "pleasant phases of the pool and is increased costs within a very short time.
climate" therefore takes on economic when, in addition to the standard swim-
significance. And in recreational pools in ming area, numerous attractions such as
particular, the climate in adjacent areas slides or water mushrooms increase
such as changing rooms, wellness and evaporation in the swimming pool hall.
rest areas, restaurants or the entrance
hall has to be reliably controlled. Intelligent air-conditioning technology
with a very good dehumidification
The aspect of the cost efficiency of the capacity and high levels of heat recovery
climate is of major significance in the case helps to offset the continuous increase
of recreational baths. As in all other types in energy costs. Modern technology can
of swimming pool, the cost of energy for help, with e.g. a reduction in the volume
air conditioning is particularly high in flow rate in line with requirements,
13 Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.comExamples from Technology Hits
Practice
Menerga fits!
Modern recreational baths can be an oasis fresh water heater of the ThermoCond 38
of fun and wellness while being operated series (see also page 10) also helps to
at the same time in a highly energy-efficient increase the overall level of efficiency of
manner. The best example of this is the the system by using the heat energy
© Bädergesellschaft Lünen mbH
two passive building swimming pools in contained in the return air which cannot
Lippe-Bad Lünen and Bambados in Bam- be recovered for air conditioning to heat
berg, the first passive building swimming the fresh water for the swimming pool.
pools in Germany, which are of course
air-conditioned with Menerga systems. Other systems which are also suitable
for use in the recreational bath are the
The two passive building swimming pools systems of the ThermoCond 39 series.
Unit type: ThermoCond, Dosolair are equipped with previous versions of With their integrated heat pump they
Lippe-BAD in Lünen the ThermoCond 38 series. Through the can achieve higher dehumidification
First public passive building swimming pool implementation of the two projects, this capacities with the same nominal flow rate.
hall in Europe series was made ready for the market and
is now available as an energy-efficient For all of the adjacent rooms, the comfort
system for all new constructions and re- air conditioning units of the Dosolair,
furbishments. ThermoCond 38 with counter- Adconair, Adsolair or Resolair series are
flow plate heat exchanger achieves the used. In shower areas, AquaCond devices
highest levels of heat recovery efficiency recover energy from warm waste water
of up to more than 95%. The optional from the showers.
For example:
Passive house swimming pool Lippe-BAD Lünen
Unit type: ThermoCond
With the Lippe-Bad in Lünen, Menerga other things, particularly efficient heat
has equipped the first public passive exchangers and the ability to variably
Hütteldorf swimming pool, Penzing
Recreational swimming pool in the south of
building indoor swimming pool hall in reduce the air volume flows. Overall,
Vienna, designed as a convertible swimming Europe with ventilation and air-condi- the Lippe-Bad is able to save up to
pool. tioning technology. The pool, which was €193,000 a year in energy costs
constructed by the Lünen Bathing Society, through the implementation of
System overview
was opened at the end of 2011 after a the passive building standard.
Indoor swimming pool
air conditioning | Comfort
Process air conditioning air conditioning
| Chilled water generation
three-year construction and planning
phase and is to use 50% less energy
than a "normal" new construction.
Four specially adapted ThermoCond
System types
© Weissenhäuser Strand
comfort air conditioning units with a total
volume flow of 50,400 m³/h dehumidify, ThermoCond 38 p. 7
ventilate and heat five areas of the pool
ThermoCond 39 p. 7
with a total water surface of 800 m². The
wet rooms, changing rooms and foyer
Adsolair p. 10
Unit type: ThermoCond, Adsolair, Resolair are conditioned by two Dosolair systems
Weissenhäuser Beach, Wangels with two-stage heat recovery and a no- Resolair p. 11
Holiday and leisure park with adventure minal flow rate of 10,000 m³/h each. In
playground on the Baltic Sea. order to satisfy the high demands of the Adconair p. 13
passive building standard, the swimming
pool air conditioning units have, amongst AquaCond p. 14
Please refer to our latest catalogue for more details.
Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com 14Good Climate in the Sauna Area
Requirements
Saunas are the latest trend – no wonder For the operation of public sauna facilities of people present. This guarantees that
that increasing numbers of recreational there are a number of directives, for the visitors to the sauna can continue to
bathers and private individuals are de- example that there must be a fivefold relax in a good climate even if significantly
ciding in favour of constructing a sauna exchange of air in the sauna. In most more people are present when the water
area. The visitor is usually willing to pay a cases, energy is irrevocably lost via the is poured over the hot rocks than experi-
considerably higher entrance fee for the return air of the sauna. In the case of a ence has shown to be appropriate.
deeper relaxation and recreational levels commercially used system it is therefore
offered by a sauna than for a visit to a expedient to make use of the heat which Intelligent air-conditioning technology
normal recreational bath. It is unusual for is led outside for other purposes. It is pays for itself in a sauna particularly
the higher entrance fee to result solely possible to use the heat for adjacent quickly due to the high energy costs. The
from the need to maintain a balance rooms or for connecting to the water controlled ventilation in conjunction with
between supply and demand; the higher system. The ventilation technology can efficient heat recovery enables significant
price is usually required because of the be equipped with a timer control which, savings to be made with respect to the
significantly higher energy costs when for example, activates intermittent ven- operating costs of the whole complex.
operating a sauna. In the winter months tilation when water is poured over heated
in particular, the heat of a sauna is balm rocks. However, a better option is adap-
for the soul in the icy winter landscape – tation of the air-conditioning technology
but a nightmare regarding energy costs. to the requirements of the actual number
15 Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.comExamples from Technology Hits
Practice
Menerga fits!
In the sauna area, one factor is particu- supply air and return air are passed
larly relevant with respect to ventilation: alternately into accumulators, in which
the heat recovery. The outside air has to the heat is then transferred. Resolair
be heated up from normal temperatures systems therefore enable moisture
to 60 to 90°C, and the warmer the outside recovery, which can be valuable in
air entering the sauna through the heat steam baths or saunas with high
© Stadtwerke Konstanz
exchangers integrated into the air-condi- moisture levels.
tioning technology, the lower the energy
costs for further heating. The two systems Depending on the use of additives in the
which are particularly suitable for this area water poured over the hot rocks, the sys-
are Resolair and Adconair. Both systems tems have to be equipped with additional
Unit type: ThermoCond, Adsolair achieve heat recovery levels of more than corrosion protection.
Lake Constance Thermal Spa Constance 90%. Only 10% of the heat energy has
State-of-the-art pool with sauna wing, to be supplied from elsewhere. The two In almost all sauna areas there are diving
thermal and outdoor swimming pool over an systems work according to different pools which refresh the visitors to the
area of 3,000 m2 principles. Adconair is equipped with a sauna with specially cooled iced water.
recuperative heat recovery system Energy is also required to produce this
which guides the fresh supply air and cooling effect. The energy requirement
the return air along separate routes. The can be reduced by using AquaCond
heat recovery of the Resolair is based on systems for efficient "cold" recovery.
regenerative heat recovery, in which the
© Portillio Wolkenstein
For example:
Lake Constance Thermal Spa Constance
Unit type: ThermoCond
Hotel Chalet Portillio Wolkenstein, The Lake Constance Thermal Spa in costs in comparison to structures which
Italy Elegant 4-star hotel in the Dolomites. Constance is a symbiosis of a good are operated conventionally. Furthermore,
climate and successful architecture: The the CO2 emissions have been reduced by
state-of-the-art adventure pool with an approximately 40%.
area of approximately 8,000 m2 is located
in the immediate vicinity of Lake Con- Besides the ThermoCond systems in the
stance and stands out with its special swimming pool area, Adsolair devices in
visual connection between the lake and the catering areas and customer-specific
the spa complex. With respect to environ- systems in the rest rooms and foyer, as
mental protection, the Lake Constance well as in the changing rooms and shower
thermal spa sets a magnificent example areas, also contribute towards this.
with its minimal energy consumption and Heat recovery in the sauna area
System overview
Indoor swimming pool
air conditioning | Comfort
Process air conditioning air conditioning
| Chilled water generation
very low CO2 emissions. The energy con- is also carried out.
cept of the spa makes consistent use of
factors such as heat recovery and the use
of natural resources in combination with System types
Unit type: ThermoCond, Adsolair combined heat and power generation. An
Westbad in Munich approach which not only protects the en- Resolair p. 11
Under the large glass dome, the family vironment, but also considerably lowers
and recreational bath offers relaxation and the operating costs. With the overall en- Adconair p. 13
unadulterated bathing fun. ergy concept it has been possible to save
around 37% of the energy and operating AquaCond p. 14
Please refer to our latest catalogue for more details.
Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com 16Heat recovery from waste water
Requirements
In every public swimming pool – whether The heat energy recovered from the The same principle also functions in
a sports arena or adventure pool – large waste water from the showers and pools reverse of course: If a high amount of
quantities of waste water are continuously is used to reduce the energy consump- energy has to be used to cool water,
produced in the shower areas and as a tion for heating the fresh water used for "cold" recovery from the waste water is
result of the legally required replacement replenishment. That way the energy possible. This is highly cost-efficient,
of the pool water. The thermal energy of consumption can be reduced by up to above all in the case of plunge and ice
the waste water is not used in most cases 90%! pools in the sauna area.
and is irretrievably lost in the drains. A
large amount of energy then has to be But waste water is nevertheless waste
used to replace the water or prepare the water – during the operation of a waste
fresh water. In the shower area in par- water heat recovery system it is there-
ticular, the high temperature of the waste fore almost unavoidable that dirt will
water means that heat recovery is expe- accumulate in the heat exchangers. This
dient in order not to waste energy un- reduces the efficiency of the system and
necessarily and make use of all options causes malfunctions. It therefore makes
for reducing the operating costs. sense to integrate regular, fully automated
cleaning.
17 Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.comExamples from Technology Hits
Practice
Menerga fits!
Systems from the AquaCond series enable deposits are consistently avoided. The
the transfer of heat energy from waste surfaces which are always clean as a
water to fresh water. Their use is ideal result ensure that the exchange of heat is
wherever waste water has to be con- constantly high.
tinuously replaced by warm fresh water,
e.g. when fresh water is fed into the AquaCond systems can also be used for
pool water or in the shower areas. "cooling recovery", for example in the case
of plunge pools.
AquaCond systems are intelligently de-
signed compact systems. The combination As with all systems produced by Menerga,
of recuperator and heat pump means AquaCond systems are equipped with an
Unit type: ThermoCond, AquaCond, that only approx. 10% of the energy is integrated controls system which
Dosolair, Adsolair, Resolair required that is be needed by a con- guarantees the most economical mode
Lasko Thermal Baths, Slovenia ventional heating system. AquaCond 44 of operation at all times.
Wellness Park with 2,200 m2 of water area. is equipped with an automatic heat
exchanger cleaning system. At regular
intervals, cleaning pellets are squeezed
through the waste water channels by
reversing the direction of flow. The cleaning
pellets loosen any dirt deposits that
have accrued in the piping system, so
that blockages of the pipework by dirt
For example:
Unit type: ThermoCond, AquaCond Lasko Thermal Baths, Slovenia
CamboMare, Kempten
Bathing fun and a sauna world in Kempten
The "Lasko Wellness Park" opened in amongst other things, the Lasko thermal
in Allgäu. 2008 in Slovenia. With a water area of baths have been awarded the EU Flower,
2,200 m² it is a tourist and architectural which is a well-known symbol of
gem in the town of Lasko, which has environmental friendliness.
been known for its thermal springs since
1818. With a moving dome over the And not only the environmental com-
entire indoor area and the 1,300 people patibility stands out: In 2011 the thermal
who the Wellness Park can accommo- baths in Lasko were awarded the title of
date, high demands are placed on the best thermal centre for the fourth time
air-conditioning technology. Adjacent to in succession in the category of medium-
the complex there is a hotel complex sized thermal baths. A good climate
with 188 rooms in the 4-star category draws attention to itself in this way as
with its own congress and seminar area. well.
System overview
Indoor swimming pool
air conditioning | Comfort
Process air conditioning air conditioning
| Chilled water generation
A total of 18 Menerga systems have
Unit type: ThermoCond, AquaCond been installed in the Lasko thermal
Mineral Swimming Pool in Leuze baths. In addition to Resolair, Adsolair,
Dosolair and several ThermoCond
At the Leuze mineral swimming pool, two
highly carbonated mineral springs and a systems, a type 44 AquaCond system System types
mineral source are used. recovers energy from waste water. For
its overall energy efficiency levels, AquaCond p. 14
Please refer to our latest catalogue for more details.
Indoor swimming pool air conditioning | 2013/01/EN | Subject to technical modifications. © Menerga GmbH | www.menerga.com 18Menerga GmbH Muelheim an der Ruhr Germany ww.menerga.com info@menerga.com The contact data of our selling agencies can be found under Creating a good climate. www.menerga.com For over 30 years. Worldwide.
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