DEH software (Energy need of air conditioning units)

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DEH software (Energy need of air conditioning units)

The software DEH calculated not only the entire energy needs of air-conditioning units, but also the operating costs (heating, cooling, elec-tricity, water), the payback period for 3 different energy recovery systems and the CO2 savings. Therefore the knowledge of the true meteo-rological data is of a central importance.

Without HR

UM L UM L AD Z N AW FOL ABL AUL N ZUL AK

With CC-System

WR G WR G UM L UM L AD A AD Z N AW FOL ABL AUL N ZUL AK

With Plate-HE

WR G UM L UM L AD A AD Z N AW FOL ABL AUL ZUL N AK

With Rotor-HE

WR G UM L UM L AD A AD Z N AW FOL ABL AUL N ZUL AK WR G

Meteorological data for Europe

The meteorological data according to DIN 4710 of January 2003 for 15 zones, which were assigned to 84 cities, are outdated. They represent the means in the period 1960-1990 and shall be construed as legal basis for calculations, although extreme years have not been taken into account and in the meantime the climate has changed significantly. Therefore calculations, based on this outdated data, resulting to high heating and a to small cooling need. For this reason, with the software DEH the meteorological data for 146 cities in Europe, which represent means for the period from 1995 to 2005. Whit this data, rudimentary calculations can be made, explained with an example of Stuttgart. The height of the station is 297 m, the height in the centre is 245 m and the amount for the urban area extends from 207 m to 549 m. Therefore, accurate calculations with individual meteorological data must be done.

Meteorological data worldwide

Records for 8760 hours can be determined, for example, with the software Meteo-norm from www.meteotest.ch of the outdated period from 1960-1990 and for the more recent period from 1995-2005. Because it is warmer and wetter in future, will need appropriate corrections can be made to a more realistic energy need and the resulting operating costs can be determined. Although everyone knows, that cooling is more expensive than heating, for determining the cooling cost, often the electricity price was divided by the COP of the refrigeration plant, causes that cooling energy would be cheaper than heating energy, what is total nonsense of course, but we think only of the capital costs and extras.

MDI software

Therefore with the software MDI, we offer an interface for global meteorological data which is help to create representations according to DIN 4710, based on annual records for 8760 hours. The global warming after IPCC can be used for planning, for future periods to be considered. For the assignment of the service hours are available comfortable typing tables for day and night.

Example for the determination of service times

Principally the whole year, but with the following restrictions: Not at all weekends. Not in last July and in the first August week (holidays). Not in last December and in the first January week (holidays). The determination of the times for reduced air flow and the part of fresh air in function of the outside air temperature is defined in the software DEH.

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Point of referece AUL UML ZUL ABL Winter °C -12.000 20.000 24.000 20.000 % 37.200 30.727 34.685 30.727 g/kg 0.500 4.500 6.500 4.500 Summer °C 32.000 26.000 16.000 26.000 % 51.210 54.054 82.700 54.054 g/kg 15.500 11.500 9.500 11.500 Volume flow humid m3/h 20000.000 10000.000 30000.000 28000.000

Mass flow dry kg/h 23500.375 11750.187 35250.562 32900.525 Definition

Ittigen, 17.08.2011 Height over sea level m 125.000

Pressure hPa 998.300

Temp. °C 20.000

Rel. humidity % 40.000

Indication

Return air ABL

Adiabate return air cooling ADA

Exhaust air FOL

Recirculated air UML

Outside air AUL

After heater NAW

After cooler NAK

Humidifier ADZ

Supply air ZUL

Heat recovering WRG

Comfort area ( DIN 1946 )

AUL, ZUL, ABL ( °C ) ZUL / ABL ( °C )

AUL ( °C ) ZUL / ABL ( g/kg )

AUL, ZUL, ABL ( g/kg ) AUL ( g/kg )

+41-79-2226642

Software development www.zcs.ch

Direct dialing Cert.-Eng. Marin Zeller TU, VDI

Fax: ...

With the compliments of Phone: +41-79-2226642

info@zcs.ch www.zcs.ch Zeller Consulting Suisse

HVAC solutions Jurastrasse 35 CH-3063 Ittigen -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 0 2 4 6 8 10 12 14 16 18 20 22 24 26 10 12 14 16 18 20 22 24 26 28 -30 -20 -10 0 10 20 30 40 0 2 4 6 8 10 12 14 0 2 4 6 8 10 12 14 16 18 20 22 24 26 W R G W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G W R G U M L U M L A D A A D Z N A W FOL ABL AUL ZUL N A K

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Temp. - Abs. humidity - DIN 1946

Climate data Software Meteonorm - www.meteotest.ch

Station Frankfurt 1995-2005 ( 125.00 m / 9.82 °C / 6.22 g/kg )

Outside air ( Day ) Outside air ( Night )

Ittigen, 17.08.2011

Return air Supply air

Fax: ... info@zcs.ch

www.zcs.ch

Comfort area ( DIN 1946 ) Direct dialing +41-79-2226642 With the compliments of

Cert.-Eng. Marin Zeller TU, VDI Zeller Consulting Suisse

HVAC solutions Jurastrasse 35 CH-3063 Ittigen Phone: +41-79-2226642 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 0 2 4 6 8 10 12 14 16 18 20 22 24 26 -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 0 2 4 6 8 10 12 14 16 18 20 22 24 26 -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 0 2 4 6 8 10 12 14 16 18 20 22 24 26 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 0 2 4 6 8 10 12 14 16 18 20 22 24 26

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Need of energy without CC-System

Maximal values AUL UML ZUL ABL

Volume flow humid m3/h 20000.00 10000.00 30000.00 28000.00 Mass flow dry kg/h 23500.37 11750.19 35250.56 32900.52

Heating + Humidification kW 328.30 27.93 356.23 Ittigen, 17.08.2011 Cooling + Dehumidifying kW 218.60 57.98 276.58

Humidification x 1.50 kg/h 193.89 31.13 225.02 Dehumidifying kg/h 176.24 23.50 199.74

Service/Air flow Air (%) Service (h) Total (h) Definition (h) Day (07.00 - 19.00) 1 100.00 2600.00 '' 2 67.00 1300.00 4380.00 4380.00 '' 3 33.00 480.00 Night (19.00 - 07.00) 1 33.00 4380.00 '' 2 0.00 0.00 4380.00 4380.00 '' 3 0.00 0.00

Outside air flow rate (Day) Outside air flow rate (Night) AUL (°C) Day (%) Night (%)

-27.00 80.00 80.00 -20.00 80.00 80.00 -10.00 100.00 100.00 0.00 100.00 100.00 10.00 100.00 100.00 20.00 100.00 100.00 30.00 80.00 80.00 37.00 80.00 80.00

Auxiliary energies h-total m3/h Pa kW

ZUL: Fan --- 0.80 30000.00 800.00 8.33

ABL: Fan --- 0.80 28000.00 500.00 4.86

Damper --- 0.26

SFP (Specific Fan Power) Recom. Effective ( ZUL + ABL )

W/(m3/s) < 1500 554.638

W/(m3/h) < 0.417 0.154

Water Day Night Total %

AUL: Humidification t 234.72 101.44 336.16 89.83

UML: Humidification t 0.40 0.03 0.43 0.11

AUL: Dehumidifying t 27.81 9.27 37.08 9.91

UML: Dehumidifying t 0.47 0.07 0.54 0.15

374.21

Need of energy Day Night Total %

AUL: Heating MWh 463.18 230.84 694.02 83.24 UML: Heating MWh 1.18 0.12 1.30 0.16 AUL: Cooling MWh 69.33 15.36 84.68 10.16 UML: Cooling MWh 4.80 0.47 5.27 0.63 ZUL: Fan MWh 26.09 2.55 28.64 3.43 Damper MWh 0.83 0.08 0.91 0.11 ABL: Fan MWh 15.22 1.49 16.71 2.00 Accessory MWh 2.07 0.20 2.27 0.27

Need of energy total MWh 582.69 251.11 833.80 100.00

Zeller Consulting Suisse HVAC solutions Jurastrasse 35 ( Water / Steam ) ( Water / Steam ) Software development www.zcs.ch CH-3063 Ittigen Phone: +41-79-2226642 Fax: ... info@zcs.ch +41-79-2226642 www.zcs.ch

With the compliments of

Cert.-Eng. Marin Zeller TU, VDI Direct dialing

( Heating + Humidification ) ( Heating + Humidification ) ( Cooling + Dehumidifying ) ( Cooling + Dehumidifying )

( Pressure drop total ) ( Pressure drop total )

( Waste water ) ( Waste water ) 0 20 40 60 80 100 120 -30 -20 -10 0 10 20 30 40 0 20 40 60 80 100 120 -30 -20 -10 0 10 20 30 40 U M L U M L A D Z N A W FOL ABL AUL N ZUL A K

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Costs without CC-System Day Night High rate Low rate Definition ( WMO ) --- 7.00 19.00 Time --- 6.00 22.00 Hours total h 16.00 8.00 Daily hours h 12.00 0.00 Night hours h 4.00 8.00 Humidification ( / t ) EUR 4.00 4.00 4.00 4.00 Dehumidifying ( / t ) EUR 1.00 1.00 1.00 1.00 Heating ( / MWh ) EUR 40.00 40.00 40.00 40.00

Cooling ( / MWh ) EUR 77.27 78.00 --- --- Ittigen, 17.08.2011 Electric energy ( / MWh ) EUR 100.00 100.00 100.00 100.00

Costs without CC-System (%) AUL: Humidification UML: Humidification AUL: Dehumidifying UML: Dehumidifying AUL: Heating UML: Heating AUL: Cooling UML: Cooling ZUL: Fan Damper ABL: Fan Accessory

Costs Day Night Total %

AUL: Humidification EUR 938.90 405.74 1344.64 3.28

UML: Humidification EUR 1.59 0.13 1.71 0.00

AUL: Dehumidifying EUR 27.81 9.27 37.08 0.09

UML: Dehumidifying EUR 0.47 0.07 0.54 0.00

AUL: Heating EUR 18527.26 9233.48 27760.74 67.69

UML: Heating EUR 47.25 4.72 51.97 0.13

AUL: Cooling EUR 5357.06 1197.86 6554.92 15.98

UML: Cooling EUR 370.95 36.80 407.76 0.99

ZUL: Fan EUR 2608.95 255.11 2864.06 6.98

Damper EUR 82.62 8.08 90.70 0.22

ABL: Fan EUR 1521.89 148.81 1670.70 4.07

Accessory EUR 206.54 20.20 226.74 0.55

Costs total EUR 29691.28 11320.28 41011.56 100.00

+41-79-2226642

( Heating + Humidification ) Zeller Consulting Suisse

HVAC solutions Jurastrasse 35 CH-3063 Ittigen

With the compliments of info@zcs.ch Phone: +41-79-2226642

Cert.-Eng. Marin Zeller TU, VDI Direct dialing www.zcs.ch Fax: ... ( Waste water ) ( Water / Steam ) ( Cooling + Dehumidifying ) ( Heating + Humidification ) ( Waste water ) Software development www.zcs.ch ( Water / Steam ) ( Cooling + Dehumidifying ) U M L U M L A D Z N A W FOL ABL AUL N ZUL A K

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CC-System-Winter Temperature efficiency % 70.000 Efficiency humid % 0.000 Capacity sensible kW 220.890 Capacity latent kW 0.000 Capacity total kW 220.890

SA-He Inlet Outlet Definition

Temp. °C -12.000 10.400 20.000

Rel. humidity % 37.200 6.358 40.000

Volume flow humid m3/h 26496.786 28769.446 30000.000

Velocity m/s 1.766 1.918 2.000 Ittigen, 17.08.2011

Pressure drop Pa 100.000

RA-Co Inlet Outlet Definition

Temp. °C 20.000 -0.822 20.000

Rel. humidity % 30.727 91.794 40.000

Volume flow humid m3/h 27938.883 25904.080 28000.000

Velocity m/s 1.996 1.850 2.000

Pressure drop Pa 110.000

25 % Et.glycol SA-He RA-Co

Temp. in °C 11.487 -2.287

Temp. out °C -2.287 11.487

Volume flow m3/h 15.000 15.000

Mass flow kg/h 15639.227 15639.227

Pressure drop kPa 200.000 200.000

Mollier-t/x-Diagramm for Summer (81.065 kW) Phone: +41-79-2226642

CH-3063 Ittigen

Mollier-t/x-Diagramm for Winter (220.890 kW)

Zeller Consulting Suisse

+41-79-2226642 Cert.-Eng. Marin Zeller TU, VDI

info@zcs.ch www.zcs.ch

Direct dialing Jurastrasse 35

With the compliments of Fax: ... HVAC solutions -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10-8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 0 2 4 6 8 10 12 14 16 18 20 22 24 26 -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10-8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 0 2 4 6 8 10 12 14 16 18 20 22 24 26 W R G W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL ZUL N A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G

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Need of energy with CC-System

Ittigen, 17.08.2011

Maximal values kW %

Heating + Humidification Total 356.23 100.00 CC-System 213.64 59.97 Diff. 142.59 40.03 Cooling + Dehumidifying Total 254.04 100.00 CC-System 30.77 12.11 Diff. 223.27 87.89

without CC-System MWh 582.69 251.11 833.80 100.00

AUL: Heat recovering MWh 261.29 133.68 394.97 47.37

AUL: Cold recovery MWh 26.03 2.82 28.85 3.46

ZUL: Fan-CC-System MWh 3.50 0.34 3.84 0.46

ABL: Fan-CC-System MWh 3.15 0.31 3.46 0.41

Glycol pump MWh 9.52 0.61 10.13 1.21

Net useful ratio MWh 271.16 135.23 406.39 48.74

Auxiliary energies h-total m3/h kPa kW

ZUL: Fan 0.80 30000.00 0.91 9.45

ABL: Fan 0.80 28000.00 0.60 5.87

Damper 0.31

Glycol pump (CC-System) 0.80 15.00 400.00 2.08 Glycol pump (Accessory) 0.80 15.00 200.00 1.04 3.13

SFP (Specific Fan Power) Recom. Effective ( ZUL + ABL )

W/(m3/s) < 1500 643.887

W/(m3/h) < 0.417 0.179

Water Day Night Total %

ABL: Humidification t 114.25 20.72 134.96 26.51 AUL: Humidification t 234.72 101.44 336.16 66.02 UML: Humidification t 0.40 0.03 0.43 0.08 AUL: Dehumidifying t 27.81 9.27 37.08 7.28 UML: Dehumidifying t 0.47 0.07 0.54 0.11 509.17

AUL: Heating MWh 201.89 97.16 299.05 69.89 UML: Heating MWh 1.18 0.12 1.30 0.30 AUL: Cooling MWh 43.29 12.54 55.83 13.05 UML: Cooling MWh 4.80 0.47 5.27 1.23 ZUL: Fan MWh 29.59 2.89 32.48 7.59 Damper MWh 0.94 0.09 1.03 0.24 ABL: Fan MWh 18.37 1.80 20.16 4.71 Accessory MWh 2.40 0.23 2.63 0.62 Glycol pump MWh 9.52 0.61 10.13 2.37

Need of energy total MWh 311.97 115.92 427.89 100.00

( Waste water ) ( Heating + Humidification ) ( Heating + Humidification ) ( Cooling + Dehumidifying ) ( Cooling + Dehumidifying ) Fax: ... ( Waste water ) info@zcs.ch Software development www.zcs.ch +41-79-2226642 www.zcs.ch

Cert.-Eng. Marin Zeller TU, VDI Direct dialing

( Pressure drop total ) ( Pressure drop total )

( Water / Steam ) ( Water / Steam )

( Water ) Zeller Consulting Suisse

HVAC solutions Jurastrasse 35 CH-3063 Ittigen Phone: +41-79-2226642 W R G W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL ZUL N A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G

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Costs with CC-System Day Night High rate Low rate Definition ( WMO ) --- 7.00 19.00 Time --- 6.00 22.00 Hours total h 16.00 8.00 Daily hours h 12.00 0.00 Night hours h 4.00 8.00 Humidification ( / t ) EUR 4.00 4.00 4.00 4.00 Dehumidifying ( / t ) EUR 1.00 1.00 1.00 1.00 Heating ( / MWh ) EUR 40.00 40.00 40.00 40.00

Cooling ( / MWh ) EUR 77.27 78.00 --- --- Ittigen, 17.08.2011 Electric energy ( / MWh ) EUR 100.00 100.00 100.00 100.00

Costs with CC-System (%) ABL: Humidification AUL: Humidification UML: Humidification AUL: Dehumidifying UML: Dehumidifying AUL: Heating UML: Heating AUL: Cooling UML: Cooling ZUL: Fan Damper ABL: Fan Accessory Glycol pump

Costs Day Night Total %

ABL: Humidification EUR 456.98 82.87 539.85 2.13 AUL: Humidification EUR 938.90 405.74 1344.64 5.31

UML: Humidification EUR 1.59 0.13 1.71 0.01

AUL: Dehumidifying EUR 27.81 9.27 37.08 0.15

UML: Dehumidifying EUR 0.47 0.07 0.54 0.00

AUL: Heating EUR 8075.46 3886.48 11961.95 47.26

UML: Heating EUR 47.25 4.72 51.97 0.21

AUL: Cooling EUR 3345.47 978.03 4323.51 17.08

UML: Cooling EUR 370.95 36.80 407.76 1.61

ZUL: Fan EUR 2958.87 289.33 3248.19 12.83

Damper EUR 93.70 9.16 102.86 0.41

ABL: Fan EUR 1836.68 179.59 2016.27 7.97

Accessory EUR 239.78 23.45 263.22 1.04

Glycol pump EUR 951.60 61.40 1013.00 4.00

Costs total EUR 19345.51 5967.05 25312.56 100.00

( Heating + Humidification ) ( Cooling + Dehumidifying ) ( Cooling + Dehumidifying ) ( Water / Steam ) ( Water / Steam ) ( Water ) ( Waste water ) ( Waste water ) ( Heating + Humidification ) Fax: ... info@zcs.ch www.zcs.ch Software development www.zcs.ch

Cert.-Eng. Marin Zeller TU, VDI Direct dialing +41-79-2226642 Zeller Consulting Suisse

HVAC solutions Jurastrasse 35 CH-3063 Ittigen Phone: +41-79-2226642 W R G W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL ZUL N A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G

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Economy with CC-System Capital-interest % 4.00 Energy-increase % 3.00 Inflation % 2.00 Support costs % 5.00 Investment-costs

without CC-System EUR 60000

with CC-System EUR 108000

Additional costs EUR 48000 Overheads

Support costs (+) EUR 2400

Energy costs (-) EUR 41012 Ittigen, 17.08.2011

Energy costs (+) EUR 25313 Energy costs -38.3 % EUR 15699 Amortization

BEP (Break even point) Years 3.78 Summer

Adiabate return air cooling Hours 1457 Capital costs

Life cycle Years 15

Investment-costs EUR 108000

Energy costs EUR 25313

Support costs EUR 5400

Overheads EUR 30713

Capital costs EUR 70063

Economy with CC-System

Incomes/Expenses (EUR) Years Incomes Expenses Yield

EUR EUR EUR

0 0 48000 -48000 1 16013 53464 -37451 2 33810 59259 -25449 3 53540 65401 -11862 4 75364 71911 3453 5 99455 78808 20647 6 125997 86112 39885 7 155190 93846 61344 8 187248 102034 85214 9 222399 110699 111700 10 260891 119868 141023 11 302986 129567 173418 12 348968 139827 209141 13 399140 150676 248464 14 453827 162147 291680 15 513379 174273 339106 16 578169 187091 391078 17 648597 200636 447961 18 725092 214950 510142 19 808113 230073 578040 20 898152 246049 652103 21 995735 262925 732810 22 1101425 280749 820677 23 1215827 299573 916254 24 1339584 319451 1020133 25 1473387 340440 1132947 26 1617974 362601 1255373 27 1774136 385997 1388139 Amortization (Years) Software development www.zcs.ch

Zeller Consulting Suisse HVAC solutions

Jurastrasse 35 CH-3063 Ittigen Phone: +41-79-2226642

Cert.-Eng. Marin Zeller TU, VDI Fax: ...

+41-79-2226642 With the compliments of

Direct dialing info@zcs.ch www.zcs.ch 0 200000 400000 600000 800000 1000000 1200000 1400000 1600000 1800000 2000000 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 W R G W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL ZUL N A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G U M L U M L A D Z N A W FOL ABL AUL N ZUL A K

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Economy AHU supply air + AHU return air with CC-System

Costs EUR %

Energy costs without CC-System 41011.56 93.18

Support costs without CC-System 3000.00 6.82

Overheads without CC-System 44011.56 100.00

Ittigen, 17.08.2011

Energy costs with CC-System 25312.56 57.51

Support costs with CC-System 5400.00 12.27

Overheads with CC-System 30712.56 69.78

Net useful ratio with CC-System 13299.00 30.22

Need of energy MWh %

Need of energy without CC-System 833.80 100.00

Need of energy with CC-System 427.89 51.32

CO2-Reduction MWh t CO2

Energy from brown coal (400 kgCO2/MWh) 405.91 162.36 Energy from hard coal (330 kgCO2/MWh) 405.91 133.95 Energy from heating oil (270 kgCO2/MWh) 405.91 109.59 Energy from natural gas (200 kgCO2/MWh) 405.91 81.18

Sonderfall Schweiz MWh %

Need of energy = Sensible heat - Outside air 516.17 100.00

Need of energy 125.84 24.38

Gross useful ratio with CC-System 390.33 75.62

ZUL: Fan-CC-System 3.84 0.74

ABL: Fan-CC-System 3.46 0.67

Glycol pump 10.13 1.96

ETV=75.62/(0.74+0.67+1.96) 22.40

Der sensible Wärmebedarf der AUL ist nicht vergleichbar mit dem totalen Energiebedarf. Nicht berücksichtigt sind: Latenter Wärmebedarf der AUL (Befeuchten im Winter) Sensibler Wärmebedarf der UML (Heizen im Winter) Latenter Wärmebedarf der UML (Befeuchten im Winter) Sensibler Kühlbedarf der AUL (Kühlen im Sommer) Latenter Kühlbedarf der AUL (Entfeuchten im Sommer) Sensibler Kühlbedarf der UML (Kühlen im Sommer) Latenter Kühlbedarf der UML (Entfeuchten im Sommer) Adiabate Befeuchtung der ABL (Leistungssteigerung der Kälterückgewinnung im Sommer) Gesamter Elektro-Energiebedarf für Zuluft- und Abluft-Ventilatoren sowie diverse Hilfsaggregate

Thank you !!! Zeller Consulting Suisse

HVAC solutions Jurastrasse 35 CH-3063 Ittigen Software development www.zcs.ch Phone: +41-79-2226642 Fax: ... info@zcs.ch +41-79-2226642 www.zcs.ch

Cert.-Eng. Marin Zeller TU, VDI Direct dialing W R G W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL ZUL N A K W R G U M L U M L A D A A D Z N A W FOL ABL AUL N ZUL A K W R G