Facade Fan Coil Unit Type FVD/FVDplus · Facade Fan Coil Unit Type FVD for floor installation with...

The Innovation Company

LTG Aktiengesellschaft

Facade Fan Coil UnitType FVD/FVDplusFloor Installation

LTG AktiengesellschaftD - 70435 Stuttgart, Grenzstraße 7 +49 (0711) 82 01-180, Fax +49 (0711) 82 01-720Internet: http://www.LTG-AG.deE-Mail: [email protected]

LTG Incorporated105 Corporate Drive, Suite ESpartanburg S.C., 29303 USA +1 (864) 599--6340, Fax +1 (864) 599--6344Internet: http://www.LTG-INC.netE-Mail: [email protected]

LTG S.r.l. con socio unicoVia G. Leopardi 10I--20066 Melzo +39 (02) 9 55 05 35, Fax +39 (02) 9 55 08 28Internet: http://www.LTG-SRL.comE-Mail:[email protected]

FVD--E–TP–01 (10/08) 416--114



E LTG Aktiengesellschaft Grenzstraße 7 D-70435 Stuttgart +49 (0711) 8201-180 Fax -720Internet: http://www.LTG-AG.de E-Mail: [email protected] Printed in Germany Ausgaben mit früheremDatum werden hiermit ungültig Technische Änderungen vorbehalten Former editions are invalid Subject to technical modifications.

Components forRoom Air Technology

GermanyCentral Office (Frankfurt)Sales area:PLZ 54, 55, 60, 63, 64, 66--69, 97Sontraer Str. 27D-60386 Frankfurt am Main (069) 94 20 19-14, Fax -10E--mail: [email protected]

Central office (Herborn)Sales area:PLZ 30, 31, 34--38, 56, 57, 61, 65Sperberweg 16D-35745 HerbornHerr Hartmann (02772) 570--725, Fax -727E--mail: [email protected]

Eastern office (Berlin)Sales area:PLZ 10--25, 29, 39Eisenhutweg 51aD--12487 BerlinHerr Linke (030) 63 22 87-74, Fax -75E--mail: [email protected]

Eastern office (Chemnitz)Sales area:PLZ 01--09, 98, 99Johannes--Ebert--Straße 20D--09128 ChemnitzHerr Schenfeld (0371) 77118--01, Fax -02E--mail: [email protected]

Southern officeSales area:PLZ 70--96Grenzstraße 7D--70435 StuttgartHerr Gau (0711) 8201--209, Fax -210E--mail: [email protected]

Western officeSales area:PLZ 26--28, 32, 33, 40--53, 58--59Baststraße 30D--46119 Oberhausen/Rheinl.Herr Perenz (0208) 30431--55, Fax --56E--mail: [email protected]

AustriaKTG KlimatechnischeGesellschaft mbHSchubertstraße 13, A--2126 Ladendorf (02575) 21089, Fax (02575) 21022E--Mail: [email protected]

Great BritainMAPMotorised Air Products Ltd.Unit 5A, Sopwith CrescentWickford Business Park WickfordGB--Essex SS11 8YU (01268) 57 44 42, Fax (01268) 57 44 43E--Mail: [email protected]

NetherlandsOpticlima SystemsLeeuwerikstraat 110, NL--3853 AG Ermelo (0341) 493969, Fax (0341) 493931E--Mail: [email protected]

PolandHTK Went Sp.z.o.o.ul. Chopina 13/3, PL--30047 Krakow (012 ) 632 31 32, Fax (012) 632 81 93E--Mail: [email protected]

PortugalArGelo S. A.R. Luis Pastor de Macedo, Lote 28 BP-1750--158 Lisboa (21) 752 01 20, Fax (21) 752 01 29E--Mail: [email protected]

SloveniaEnergo PlusKoprska 108 d, SLO-- 1000 Ljubljana (01) 200 73 67, Fax (01) 42 33 346E--Mail: [email protected]

SwitzerlandLaminair AGKirchbergstrasse 105Ch--3400 Burgdorf (034) 420 02--10, (034) 420 02--11E--Mail: [email protected]

TurkeyStep Müh. Yapi Ltd.Yali Yolu Sokak, Turanli Apt. No: 24 D.1TR-- 34744 Bostanci--Istanbul (0216) 445 2931, Fax (0216) 445 2505E--Mail: [email protected]

The Program forRoom Air TechnologyComponentsAir diffusers for walls, floors andceilings · LTG System cleanR ·linear diffusers CoandatrolR ·ceiling air diffusers CoandaventR ·displacement diffusers ·LTG chilling fans cool waveR ·induction units KlimaventR ·fan coil units Raumluft ·ceiling fan coil units VentotelR ·facade fan coil units ·airflow control units · labairR system

Engineering servicesTechnical services for investors, archi-tects, engineers and plant builders duringdesign, construction and operation ofbuildings. Reliable and precise data rela-ting to the ventilation of air conditioningsystem are given already before realiza-tion of the project, determined by measu-rements, calculations, building simula-tions and experiments.

________________________________

Components forProcess Air Technology

JapanToho Engineering Co. Ltd.14-11, Shimizu 3-Chome, Kita KuJapan 462 Nagoya (052) 9 91-10 40, Fax (052) 9 14-98 22E--Mail: [email protected]

The Program forProcess Air TechnologyComponentsAxial--flow, centrifugal and tangentialfans · Collector system for: coarse andfine particle filtration, separating andcompacting, compressing and humidi-fying.

Engineering servicesTechnical services for construction engi-neers and plant designers during deve-lopment and operation of assemblygroups, machines and plants.



E LTG Aktiengesellschaft ⋅ Grenzstraße 7 ⋅ D-70435 Stuttgart ⋅ +49 (0711) 8201-180 Fax -720 FVD--E-TP (10/08)Internet: http://www.LTG-AG.de ⋅ E-Mail: [email protected] ⋅ Printed in Germany Former editions are invalid ⋅ Subject to technical modifications. 3

Facade Fan Coil Unit Type FVD for floor installation with decentralizedoutside air supply via the facade, for heating and cooling

ApplicationThe Facade Fan Coil Unit type FVD is a 4-pipe unit forthe decentralized ventilation of occupied rooms (outerzones) via the facade using outside air, including coolingand heating.

It is perfect for installation in false floors with an overallunit height of at least 203mmwhen using floor panels (38mm) with covering (8.5 mm) and a minimum height of175 mm when placing the floor covering directly on theventilation module.

Since all components are below floor level, the FVDmaybe used in rooms with a full--surface facade glazing.

Facade Fan Coil Unit, Type FVD 1320--300--R(picture without control valves, with water connection on theright, for demonstration purposes without ventilation modulecover, inspection opening and foot traffic resistant grille)

Functional PrincipleThe centrifugal fan of the FVD sucks in outside airthrough a slot or opening in the facade element throughthe open shut-off damper of the FVDand a fine dust filter.

The air is forced through a silencer and induction nozzles(to mix with room air) and passes through a 4--pipe heatexchanger with separate water circuits. The heated orcooled air is then expelled through the floor grille directlyat the facade into the room (direct induction).

This supply air flow mixes in summer with the warmroom air, in winter with the falling cold air in front of thewindow (mixed air flow close to the facade).A displacement flow towards the core is created in thecooling mode by the mixed discharge flow.

If the fan is isolated or in case of a power failure, the shut-off damper is closed safely through an actuator withspring return. The FVD will then serve as an underfloorconvector e.g. for static heating of the room at night.

Notes regarding the control:Since facade fan coil units are operated with both outsideand room air some particularities will have to be conside-red when integrating the units in a control circuit (see in-stallation instructions).Control strategies of standard fan coil unit controllerscannot be used without certain modifications.In any case, continuous control components will have tobe used.

Facade

Room

Air flow path FVD/direct induction

Tolerances- For the data given in this brochure General Tolerancesaccording toDIN2768--vL apply. For the outlet grille thespecial tolerances given in the drawing apply.

- Straightness and twist tolerances according toDIN EN 12020--2.

Surface Finish- The surface finish was designed to meet requirementsfor the use in buildings -- room air climate accordingto DIN 1946 Part 2. Other requirements on request.

You will find the actual tender documentations atthe end of this document.They are available inword format at your local dealershipor at www.LTG--AG.de.




Facade Fan Coil Unit Type FVDplus for floor installation with decentral-ized outside air supply via the facade, recirculating air mode,for heating and cooling

ApplicationThe FVDplus has the same functions as the FVD but, ad-ditionally, includes a tangential fan used to recirculateroom air and increase capacity in the fresh--air mode.

Facade fan coil unit type FVDplus--4--A--1150--300--R (picturewithout control valves, with water connection on the right, fordemonstration purposes without ventilation module cover andwithout foot traffic resistant grille)

Functional PrincipleThe FVDplus allows for three different operating modes:

1. operation with fresh air intake only (the same as FVD)2. operation as a recirculating air unit without outside airintake

3. operation with fresh air intake and recirculating air.

1. In the ”fresh air only” mode the centrifugal fan of theFVDplus draws in outside air through a slot or openingin the facade element via the FVD’s open shut-off dam-per and a fine filter. The air is passed through a silencerand is discharged via nozzles, to mix thoroughly, withroom air before passing the 4 pipe heat exchanger withseparate water circuits.

2. In the ”recirculating air only mode” a noiseless five-speed tangential fan draws room air through the ventila-tion grille. This air passes through the unit’s heat ex-changer and is reintroduced into the room over the fan’sentire width.

3. In the “combination mode” the advantages of the abovetwo modes are combined. The fresh air flow is supple-mented by recirculated room air thereby increasing theheating cooling capacity of the unit.

In any of the threemodes the cooled or heated air is expel-led vertically upwards through the floor grille close to thefacade. This supply air flowmixes in summerwith the hotroom air, and in winter with the falling cold air in front ofthe window (creating a “mixing zone” close to the fa-cade).In the cooling mode, the mixed air flow creates a displa-cement flow towards the room core.

If the fan is isolated or in case of a power failure, the shut-off damper is closed safely through an actuator withspring return. The FVDplus will then serve as an under-floor convector e.g. for static heating of the room at night.

Facade

Room

Air flow path FVDplus




Facade Fan Coil Unit Type FVD/FVDplus - Advantages

Advantages Direct InductionThe heat exchanger heats/cools room air and outside airwhich results in: increased heating and cooling output due to increasedflow rate

better protection against freezing better thermal comfort effective use of free cooling excellent room air flowwith air diffusion close to the fa-cade and mixed/displacement air flow.

room air

outside air throughinduction nozzles

outside air

supply air

TKWVL 18 _C

TRaum 26 _C

T∞32 _C

TWE 29 _C

Direct induction principle

FVDplus: High performance due to mixedin room air and recirculating air fan

Fast air conditioning due to increased output. Fastcooling/heating of completely cooled rooms. Idealsupplement to slow concrete core activation.

Recirculating air flow rate independent of the outsideair flow rate, to be selected by the user or cascadecontrolled.

Cooling and heating also without outside air, air con-ditioning possible even with critical wind conditions.

room air

outside air throughinduction nozzles

outside air

supply air

TKWVL 17 _C

TRaum 26 _C

T∞32 _C

TWE 27,5 _C

Principle when mixing in room air

Advantages Facade Fan Coil Unit Type FVD

High output and frost protection- Designed for high capacity output- Easy frost protection possible through direct induc-tion/mixing in room air

Decentralized outside air supply- The outside air flow rate may be adjusted indivi-dually and according to requirement.

- The occupants in the roommay control the outside airflow through set values.

- No plant room investment/space required for centralsupply air.

Aesthetic design- Slim grille directly on the facade.- Continuous installation of the grille and the facademodule.

Low--noise operation- Low sound power level.- Good sound insulation to protect from outside noisessuch as traffic.

Low energy consumption- Short air conveying distances, low pressure losses.- Use of a highly efficient EC motor in the centrifugalfan.

- Lowwater-side pressure losses in the heat exchanger. Strict separation of the water circuits- 4--pipe heat exchangerwith separate cooling andhea-ting register.

- Use of standard controllers possible.

Flexible use thanks to modular design- Low installation height.- Dividing the system in two modules allows to meetany project requirement.

- Length and width of the facade module may be chan-ged to adapt the unit to other grid dimensions or thecaloric output.

- In case of a change of use, the units may easily be re-trofitted.

Quick and easy maintenance- Excellent accessibility of the filter, the shut--off dam-per, and the actuator by simply lifting the foot trafficresistant grille and one maintenance cover.

- Easy cleaning of the facade module by lifting thegrille and the heat exchanger.

- Good accessibility of the fan and the silencer by lif-ting the floor panels and the ventilation module co-ver. The fan motor may be detached and removedfrom above. The silencer may be completely remo-ved for cleaning the air paths.

- For the FVDplus also excellent accessibility of thecross flow fan.

Easy and clean installation- Separate installation of the air conditioner, the fa-cade, and the false floor. The supporting feet may beadjusted from the outside without need to open theunit. Thus, contamination during installation ismini-mized.




Facade Fan Coil Unit Type FVD/FVDplus - Installation Example

Room

Facade

FVD

Installation example: Continuous grille along the facade,facade fan coil unit FVD and aluminum roller grille

If the look of a continuous grille along the facade is re-quired units are screw connected using matching blackcoated distance sheets.

In case of end pieces and if the spacing is more than400 mm supports will have to be used for stabilization.

The LTG aluminum roller grille also allows for produc-tion of cutouts for columns and mitre edges.

To meet any esthetic requirement we offer 3 grille types:

1. Stainless steel grille

2. LTG aluminum roller grille

3. LTG aluminum grille

Facade fan coil unit FVD after installation with cutout floorboards

Facade fan coil unit FVD after installation with stainless steelgrille




Facade Fan Coil Unit Type FVD - Dimensions

Top view

Front view

Lateral view

Feet may be comple-tely retracted

FVD 1200--200 205 511A B

FVD 1200--300 305 611

Dimensions

155

1245

134200

1173

18

A

B

Water connectionsto match the specific project

8018

48

203

73

611

Unit dimensions are set to match the specific project.Therefore, this dimensional sketch serves as an example only.

Isometric view




Facade Fan Coil Unit Type FVD - Technical Data

Technical data type FVD 1200-200(various flow rates)

V[m#/h]

LA18[dB(A)]

LwA[dB(A)]

Qk1

[W]Qk sens

1

[W]wok/pw

[kg/h]/[kPa]Qh

2

[W]woh/pw

[kg/h]/[kPa]Qh st

2

[W]Pel[W]

60 27 33 250 250

200 / 16

1615

100 / 6

275 9

90 30 36 400 400 2310 275 14

120 35 41 505 505 2790 275 20

150 40 46 585 585 3160 275 27

Technical data type FVD 1200-300(various flow rates)

V[m#/h]

LA18[dB(A)]

LwA[dB(A)]

Qk1

[W]Qk sens

1

[W]wok/pw

[kg/h]/[kPa]Qh

2

[W]woh/pw

[kg/h]/[kPa]Qh st

2

[W]Pel[W]

60 26 32 240 240

200 / 16

1670

100 / 6

310 9

90 29 35 440 440 2570 310 14

120 34 40 585 585 3210 310 20

150 39 45 700 700 3701 310 27

The given data refer to the unit including fine filter F7, free--suction operation without external pressure loss.

1 Water supply temperature: 17 C, intake air temperature: 32 C, non--condensing operation (about 40% relativehumidity), room air temperature: 26 C.

2 Water supply temperature: 75 C, intake air temperature: --12 C, room air temperature: 22 C.

V --

LA18 --

LwA --

Qk --

flow rate ( 10%)

sound pressure level with 18 m2 Sabineroom absorption

sound power level ( 3 dB)(without intake grille)

cooling capacity

Qk sens --

wok --

pw --

Qh --

woh --

Qh st --

Pel --

sensible cooling capacity

standard water flow rate at cooling capacity*

water--side pressure loss

heating capacity

standard water flow rate at heating capacity*

static heating capacity

electric power consumption ( 20%)

* correction for other flow rates see page 9/10




Facade Fan Coil Unit Type FVD - Selection

Due to the many parameters decisive for a decentralizedunit’s output we will state one example only.Further selections are possible using a special LTG pro-gram available through LTG Aktiengesellschaft

Example for:Type FVD 1200 -- 300Grille width 300Outside air flow rate 120 m3/hRoom air temperature 26 _CWater supply temperature 17 _CNominal water volume 200 kg/h

Cooling capacity with different flow rates

CoolingcapacityQk[W

]

50 100 150 200--200

0

200

400

600

800

1000

1200

1400

Flow rate in % of the nominal flow rate

Overall coolingcapacity

Room--effectiveoutput

50_C Intake air temperature40_C Intake air temperature32_C Intake air temperature

Water-side pressure loss of the cooling register with different flow rates

100 200 300 400 500

10

100

180160120 140

80

60

40

30

20

5Water-sidepressureloss

p w

[kPa]

Flow rate w [kg/h]

3




Facade Fan Coil Unit Type FVD - Selection

Due to the many parameters decisive for a decentralizedunit’s output we will state one example only.Further selections are possible using a special LTG pro-gram available through LTG Aktiengesellschaft.

Example for:Type FVD 1200 -- 300Grille width 300Outside air flow rate 120 m3/hRoom air temperature 22 _CWater supply temperature 75 _CNominal water volume 100 kg/h

Heating capacity with different flow rates

Heating

capacityQh[W

]

200


Overall heatingcapacity


0_C Intake air temperature--12_C Intake air temperature--20_C Intake air temperature

50 100 1500

500

1000

1500

2000

2500

3000

3500

4000

4500

Water-side pressure loss of the heating register with different flow rates

Water--sidepressureloss

p w

[kPa]

Flow rate w [kg/h]50 100 150 200

1

10

90807060

40

30

20

5

50




Facade Fan Coil Unit Type FVD - Electrical Connection

Electrical ConnectionThe unit is provided with connecting cables equippedwith connector sleeves.

Electrical connection is made, on site, via a terminal boxmounted to the unit (protection IP66).

Available are 3outside air flow rateswhichmay be trigge-red directly via a control line. This control line has an out-side air flow--dependent voltage of up to mains potential.Activation in groups of up to 3 units is possible (using thesame phase).

An error message may be applied to the terminal box.The message will be displayed in case one of the follo-wing conditions occurs:

- the fan does not run, irrespective of load applied

- antifreeze is active (heat exchanger temperature < 10 _C)

- set flow rate is not achieved within 120 seconds.

Connection of a diffused air temperature sensor is optio-nal.

Power supply conn. 230 VLine: 3 x 0,75 mm2

Facade fan coil unit terminal box On--site wiring

Outside air flow ratesI -- IIILine: 4 x 0,75 mm2

Fan error messageLine: 2 x 0,5 mm2

220/24 V, 6,0 VAF1 = 32 mA, trF2 = 1,0 A, tr

LPEN

Sign321

Error

Mains

Speeds

Error

Temp

U5Yμ

PENNL

--2PartyDay

Nighttemp--1

PWMTacho

5321

Antifreeze

Belimo

X5

X6

X7

F1

F2

Electrical isolation required

Connection via floating contacts




Facade Fan Coil Unit Type FVDplus - Dimensions

Top view

Front view

Lateral view

Feet may be com-pletely retracted

155

1150

200

1042108

305611

Water connectionsto match the specific project

18611

48

203

61


80

Isometric view




Facade Fan Coil Unit Type FVDplus - Technical Data

Model size 1150-300-4-pipe system - Cooling and heating with recirculating air only

n[--]

V[m#/h]

LwA[dB(A)]

Qk1/t

[W/K]Qk

1

[W]wok/pw

[kg/h]/[kPa]Qh

1/t[W/K]

Qh2

[W]woh/pw

[kg/h]/[kPa]Pel[W]

I 196 28 46.5 420

200 / 6.1

34.5 970

100 / 3.4

16

II 289 33 59.0 530 41.0 1150 17.5

III 367 40 68.0 610 45.0 1260 19.5

IV 430 45 73.5 660 48.0 1340 22

V 506 51 80.0 720 50.5 1415 27

Model size 1150-300-4-pipe system - Cooling and heating with outside air only

V[m#/h]

LA18[dB(A)]

LwA[dB(A)]

Qk1

[W]wok/pw

[kg/h]/[kPa]Qh

2

[W]woh/pw

[kg/h]/[kPa]Pel[W]

60 26 32 255

200 / 6.1

820

100 / 3.4

5

90 29 35 365 1140 7

120 34 40 460 1415 9

Model size 1150-300-4-pipe system - Cooling and heatingExample of a combination of 120 m3/h outside air and recirculating air

n[--]

LA18[dB(A)]

LwA[dB(A)]

Qk1

[W]wok/pw

[kg/h]/[kPa]Qh

2

[W]woh/pw

[kg/h]/[kPa]

I 34 40 705

200 / 6.1

1740

100 / 3.4

II 34 40 770 1780

III 37 43 820 1820

IV 40 46 855 1835

V 45 51 895 1800

Acoustic data including outside air filter F7 and free--suction operation without external pressure loss.Data apply to the unit with intake and outlet grille, including simulated facade.Data based on VDMA Standard Sheet 24390 (draft).1 Water supply temperature: 17 C, room air temperature: 26 C, intake air temperature: 32 C.2 Water supply temperature: 50 C, room air temperature: 22 C, intake air temperature: --12 C.

n --

V --

LA18 --

LwA --

Qk --

t --

speed

flow rate ( 10%)

pressure level with 18 m2 Sabine room ab-sorption

sound power level ( 3 dB)(without intake grille)

cooling capacity

temperature difference between induction airtemperature before entering the heat exchan-ger and water supply

wok --

pw --

Qh --

woh --

Pel --

standard water flow rate at cooling capacity*

water--side pressure loss

heating capacity

standard water flow rate at heating capacity*

electric power consumption ( 20%)

* correction for other flow rates see page 14/15




Facade Fan Coil Unit Type FVDplus - Selection

Due to the many parameters decisive for a decentralizedunit’s output we will state one example only.Further selections are possible on request.

Example for type FVDplus 1200 -- 300Grille width 300Outside air flow rate 120 m3/hRoom air temperature 26 _CWater supply temperature 17 _CNominal water volume 200 kg/hSpeed level II

Cooling capacity with different flow rates

CoolingcapacityQk[W

]

50 100 150--200

0

200

400

600

800

1000

1200

1400

Water volume in % of the nominal water volume

Overall coolingcapacity


50_C Intake air temp.40_C Intake air temp.32_C Intake air temp.

Water-side pressure loss of the cooling register with different flow rates

Water-sidepressureloss

p w

[kPa]

Water volume w [kg/h]100 150 200 250 300 350 400

10

5

20

25

2




Facade Fan Coil Unit Type FVDplus - Selection

Due to the many parameters decisive for a decentralizedunit’s output we will state one example only.Further selections are possible on request.

Example for type FVDplus 1200 -- 300Grille width 300Outside air flow rate 120 m3/hRoom air temperature 22 _CWater supply temperature 75 _CNominal water volume 100 kg/hSpeed level II

Heating capacity with different flow rates

Heating

capacityQh[W

]

150


Overall heatingcapacity


0_C Intake air temperature--12_C Intake air temperature--20_C Intake air temperature

50 1000

500

1000

1500

2000

2500

3000

3500

Water-side pressure loss of the heating register with different flow rates

Water-sidepressureloss

p w

[kPa]

Flow rate w [kg/h]50 100 150 200

1

10

18013011090807060

15

5




Facade Fan Coil Unit Type FVD/ FVDplus - Control Specifications

When integrating the facade fan coil unit type FVD/FVDplus into a closed--loop control circuit the followingparticuliarities will have to be considered:

In the decentralized facade fan coil unit type FVD/FVDplus, both outside air and room air are routed throughthe heat exchanger. As outside air temperature variationscan be significantly higher than intake temperatures instandard recirculating air units, standard fan coil unit con-trol strategies cannot be used without making certainmo-difications.

Room Temperature ControlRoom temperature control must be cascade controlled ina way to ensure that the required room temperature in theoccupied zone is achieved.In any case, thiswill require the use of continuous controlvalve actuators or alternatively, three--position actuators.

Wind Pressure Control / Supply Air FlowRateMaintaining the required outside air flow rate as a func-tion of applied wind pressures at the suction inlet will beensured by a controller integrated in the fan coil unit’spower electronics. No external access to this controller isprovided.

Three connectable flow rates represent the customer spe-cified set flow rates (e.g. 90m3/h -- 120 m3/h -- 150m3/h).If no flow rate is chosen, the unit will shut the outside airdamper and stop the fan. The required outside air flowrate may be selected/switched by an external controllerchosing among three different set flow rates.

With no voltage supplied, the outside air damper will beshut in the spring return mode.

Frost ProtectionSince the heat exchanger in decentralized A/C units canhandle outside air there is risk that the heat exchangermight freeze in the case of LPHW/LTHW failure or fanmotor failure.

Such failure may be detected before causing any damageto the heat exchanger by monitoring the diffused air tem-perature.An optional digital anti--freeze sensor monitoring the dif-fused air temperature will shut off the fan if the tempera-ture drops below the limit of 10 _C and close the outsideair damper. This function is not invoked, in both heating& cooling mode, if the unit is working correctly.

The digital anti--freeze sensorwill not protect from simul-taneous controller failure. Therefore, maximum securityis achieved if an additional automatic frost protectioncontroller with capillary tube sensor is used in terms of aredundant system.

If the temperature at the sensor rises above 15 _C, the unitwill be put back into operation.

An external controller may have additional access via anoptional additional diffused air temperature sensor, sothat further error messages may be displayed and the out-side air dampers be closed (fan -- set flow rate 0).

Diffused Air Temperature LimitingIn order to optimize comfort in the occupied zone the dif-fused air temperature will have to bemonitored and its lo-wer limit be restricted through suitable valve settings.

This limit should not be more than 8 K below room tem-perature.

However, thiswill also limit the available cooling capaci-ty.

StartingIn case of low outside air temperatures, pre--heated watermust flow though the heat exchanger when starting theunit and opening the outside air damper.

Nocturnal CoolingUsing a suitable control strategy, the facade fan coil unitmight also be used to cool the building structure if noctur-nal temperatures are low (but not falling below 10 _C).

Minimum Air VolumeTo minimize building energy expense, the outside air vo-lume should be reduced to the minimum flow necessaryfor occupancy.




Facade Fan Coil Unit Type FVD/FVDplus - System Components

DescriptionUsually one unit every other grid is sufficient to satisfythe requirements of a 2 module room with 2 people or a3 module room with 3 people

Many architects, however, require the grille to be instal-led in a a continuous format.

Module FVD--W has been specifically designed for thispurpose. This module not only takes the grille but may beconverted in various steps whenever required.

Advantages

Flexibility and comfort- Typical reasons for changing modules:An existing/new tenant might require more cooling ca-pacity, removing office partition walls to convert seve-ral small offices into one large office roomor a completeoffice refit.The additional modules may serve to either provide anincreased cooling capacity or to retrofit meeting roomswith more outside air without the need to replace theempty tray or the outside air unit. The required supple-ment modules are simply added and installed.

Easy control- Use of the operating unit can be continued even whenmodules have been supplemented. The second modulecan be switched synchronously to the first. No new wi-ring or additional control functions are required.

Base LevelA unit in every second module with 120 m3/h (fresh airfor 3 persons) and empty tray.Solution for standard offices. Valves for the FVD--Amaybe integrated in the FVD--W and are, thus, more easily ac-cessible than in the false floor.

FVD--A standard unit-- tray-- grille-- 4--pipe heat exchanger-- fan, sound absorber-- outside air connection,damper, filter

Empty tray module-- for building module withoutFVD--A unit

-- tray-- grillesuitable for retrofitting with moduleFVD--L.

Heat exchanger

FVD--A/FVDplus--A FVD--W Facade

Conversion stage 1Retrofitting static heatingSolution e.g. for corner rooms in buildings.

Module FVD--H-- activation of the adjacent module-- extension of an empty traywith a heat exchanger to double the static heating capacity.

Heat exchanger Heat exchanger

FacadeFVD--A/FVDplus--A FVD--H

for dimensions andtechnical data see next pages

Conversion stage 2Increase the cooling capacity. A unit in every secondmo-dule with 120 m3/h (fresh air for 3 persons).Solution e.g. for corner rooms in buildings.

Module FVD--L-- enlargement of a tray module FVD--W + a standard unit FVD--Ato obtain a unit with increased cooling capacity

-- module FVD--L will be supplied with air via the FVD--A unit-- heat exchanger is inserted in the tray


FacadeFVD--AL/FVDplus--AL FVD--L

Conversion stage 3Double fresh air + cooling capacity. per module if thereare two facade openings (fresh air for 6 persons).Solution e.g. for meeting rooms.

Conversion of the empty tray to obtain a second FVD--Astandard unit-- 4--pipe heat exchanger-- fan, sound absorber-- outside air connection, damper, filter


FacadeFVD--A/FVDplus--A FVD--A/FVDplusA




Heating Convector Type FVD-H

ApplicationThe heating convector type FVD--H is a 2--pipe under-floor convector for static heating.The heating convector has been designed for installationin false floors. Required minimum false floor height is180 mm.

Functional PrincipleCooled room air enters the grille positioned on top of theunit.Natural convection ensures draught--free flow of heatedair into the room.The heat exchanger has been optimized specifically forlow water volumes and high caloric outputs.

ControlControl is realized via standard radiator valves. The heatexchanger is provided with a smooth tube connection fordirect connection of flexible hoses via quick release cou-pling.

Technical data Type FVD-H 1000(different water inlet temperatures)

tVL[_C]

Qh[W]

woh/pw[kg/h]/[kPa]

40 125

100 / 450 200

60 275

70 390

At 20 _C room temperature (intake temperature)Water flow rate 100 kg/h

Dimensions

Top view

Front view Lateral wiew

Feet may be com-pletely retracted

(158)

1140 2331200

1225

305

305

Water connectionsto match the specificproject

175,5

36


17,5

36

Isometric view




Heating Convector Type FVD-H

Capacity with different flow rates

Flow rate w [kg/h]

50 60 70 80 90 100 110 120 130 140 15060

65

70

75

80

85

90

95

100

105

110

115

120

Capacityin%

ofthenominalcapacityQ

Water-side pressure loss with different flow rates

Flow rate w [kg/h]

Water--sidepressureloss

p w

[kPa]

50 100 150 200

1

10

50




Facade Fan Coil Unit Type FVD/FVDplus

InstallationThe compact design with a unit depth of 511 mm and agrillewidth of 200mmor 611mmwith a grillewith of 300mm (FVDplus grill width 300 mm only), respectively, al-lows for installation of the unit between floor supports.Precise alignment of the unit is achieved through heightadjustable feet.

The valve chamber for connection of the control valvesis located on the side opposite the intake opening side.

Feed-throughs for the water connection tubes are also onthe side opposite the intake opening, in the facade modu-le’s back panel.

The upper edge of the unit and thus of the traffic resistantventilation grille is to be installed flush to the prefabrica-ted floor.

In the ventilationmodule area, floor panelsmay be placedon the ventilationmodule cover using insulatingwashers.

Fassade

Facade Fan Coil Unit Type FVD -- Installation on the facadewith floor panels and floor covering.

Special versions / Accessories- Control valves with either continuous or 3 point actua-tors.

- Flexible insulated hoses with quick and safe releaseplug-in connections to the heat exchanger and integra-ted air-release valves.

- Solid ventilation grille, foot traffic resistant without theuse of any additional cross members, with fins parallelto the facade.According to requirement, either steel with an abrasion-proof coating or stainless steel, inserted in the facademodule from above.The grille is available in a variable length, independentof the unit, e.g. matching the grid dimension.The use of grilles of other brands requires LTG Aktien-gesellschaft’s express approval in order to ensure a trou-bleless operation of the entire system.

- Suitable filter cartridges, fine filter F7.

- Antifreeze controller to monitor outside temperatures.It may be set to a selectable air temperature, e.g. 5_C inwinter, at which the fan is cut off and the outside airdamper is closed in case of a hot water supply failure toavoid freezing of the heat exchanger.

- Actuators with spring return to safely close the outsideair shut-off damper in case of a power failure

Facade Fan Coil Unit Type FVD -- Replacement of filter




Facade Fan Coil Unit Type FVD/FVDplus - Nomenclature

FVD - 2 - A -1200 - 300 - R / D / 1R / E / S

outside air FVDoutside air + recirc. air FVDplus

2-pipe unit 24-pipe unit 4

standard unit Astandard unit for use of L module ALtray module Wretrofitting static heating Hretrofitting output increase L

construction length 1200

grille width 200(FVDplus 300 only) 300

water connection side right Rleft L

straightway 3-point valve D3-way 3-point valve 3

without edge profile for distance sheet OR1 edge profile 1R2 edge profiles 2R

grille stainless steel Ealuminium roller grille 20 mm ARsteel, coated SBaluminum, anodised AE

housing, coated black Shousing, coated in special color SO

Specification and Schedule of Prices Facade Fan Coil Unit (according to design patent DE 201 02 312) Base Unit FVD-A Edition 4.2.2009 / page 1

© LTG Aktiengesellschaft, Grenzstraße 7, D-70435 Stuttgart, Tel.: +49 / 711 / 8201-0, Fax.: +49 / 711 / 8201-720 Ausgaben mit früherem Datum werden hiermit ungültig. Technische Änderungen vorbehalten. Former editions are invalid. Subject to technical modifications.

Qty. Description Unit price

in € Total price

in €

General Description Facade fan coil unit for installation in false floors for a decentralized ventilation of occupied rooms via the facade, as well as for heating and cooling outside air with added room air for: - increased caloric output. - high thermal comfort due to a temperature increase of the diffused air. - lower risk of freezing and condensation. Data and Classification according to VDMA Standard Sheet 24390 (draft)

Nominal heating capacity of the unit 300 200 Nominal room heating capacity

Grille width [mm] 300 200 Nominal outside air flow rate (+/- 8 %) [m3/h] 120 120 Outside air temperature [°C] -12 -12 (temperature of the outside air sucked in by the unit) Room air temperature [°C] 22 22 Hot water supply temperature [°C] 75 75 Hot water return temperature [°C] 65 65 Nominal heating capacity of the unit (- 5 %) [W] 4620 3510 Nominal room heating capacity [W] 3260 2150 Nominal water flow rate [kg/h] 390 300 Nominal pressure loss [kPa] 94 28

Recommended use with a water supply temperature of 50°C (e.g. for use of a heat pump in central return air)

Hot water supply temperature [°C] 50 50 Hot water return temperature [°C] 32 32 Nominal heating capacity of the unit (- 5 %) [W] 2090 1790 Nominal room heating capacity [W] 730 430 Nominal water flow rate [kg/h] 100 85 Nominal pressure loss [kPa] 6 2

Nominal cooling capacity of the unit 300 200 Nominal room cooling capacity

Nominal outside air flow rate (+/- 8 %) [m3/h] 120 120 Outside air temperature [°C] 32 32 (temperature of the outside air sucked in by the unit) Room air temperature [°C] 26 26 Cold water supply temperature [°C] 17 17 Cold water return temperature [°C] 19 19 Nominal cooling capacity of the unit (- 5 %) [W] 630 520 Nominal room cooling capacity [W] 390 280 Nominal water flow rate [kg/h] 265 230 Nominal pressure loss [kPa] 28 13

Free intake, free diffusion

Technical data apply for free suction on the intake opening and grille on the outlet.

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in € Total price

in €

Nominal outside air flow 300 200

Nominal outside air flow (+/- 8 %) [m3/h] 120 120

Sound power level

Sound power level (+/-3 dB) including F7 filter (free suction and diffusion): 120 m3/h (nominal outside air flow) [dB(A)] 47 90 m3/h [dB(A)] 39 60 m3/h [dB(A)] 32

Sound reduction index

Weighted sound reduction index of the unit with open outside air damper re-lated to the suction area A. A [m2] 0,018 Rw, [Ctr50-5000] [dB] 28, [-7]

Wind impact

Meets the highest requirements of Unit Category III for external static pres-sure differences +/-200 Pa.

Compensation of the filter pressure loss through integrated flow rate control. Maximum external pressure to be compensated with nominal outside air flow rate:

Nominal outside air flow rate (+/- 20 %) [m3/h] 120 Positive wind pressure [Pa] +1000 Negative wind pressure [Pa] -300

Power consumption

Low‐noise centrifugal fan with energy‐saving, highly efficient, infinitely va-riable EC motor for outside air flow rates of 60 - 180 m3/h. 120 m3/h (nominal outside air flow) [W] 20 90 m3/h [W] 14 60 m3/h [W] 9 El. power consumption max [W] 100 Required back-up fuse [A] 10 Fan connection [V] 230

-3-




in € Total price

in €

Air filter for outside air and exhaust air

The supply air unit is equipped with an outside air filter F7 (including a warning sign for the direction of air, filter type, inspection interval and date of last filter change) - without exhaust air filter. Filters made entirely from synthetic composite materials

Supply air diffusers

Facade fan coil unit with mixed-in room air for high thermal comfort thanks to an increased temperature of the diffused air, and supply air diffuser with mixed displacement air flow. DIN 1946 Part 2 requirements are met for the nominal outside air flow.

Outside air damper / Exit air damper Internal air tightness of the unit

In case of a power failure the outside air damper is shut automatically by an actuator with spring return.

Leakage air flow Meets: Reference- related to: permeabilitx for 100 Pa:damper dimension Class 4 Q100 = 0,13 m3/hm Leakage air flow of the outside air damper when shut: wind pressure +1000 Pa [m3/h] < 1 wind pressure -1000 Pa [m3/h] < 1 Internal leakage air flow [%] < 5

Condensate tray

The unit is provided with a condensate tray without drainage and slope for temporary condensate formation. Continuous condensate formation is not provided for and covered.

Sanitation

The upper material of the lining e.g. on the sound absorber and the 13 mm thick heat insulation is made of abrasion resistant glass fleece. Cut edges are protected against fibre release. The sound absorber sliding block inside the ventilation module may easily be removed to clean air conveying components. The ventilation module cover is easy to remove for inspection using a siphon. Filter, actuator , outside air damper, heat exchanger, and condensate tray are easily accessible inside the facade module underneath the supply air grille.

-4-




in € Total price

in €

Material

Unit with adjustable feet. The self‐supporting housing is made of galvanized steel, visible parts powder coated in black (other colors on request), a 4‐pipe heat exchanger with copper tubes and aluminum fins for cooling and heat-ing.

Heat exchanger connection with DN = 12 mm smooth copper tube for con-nection of flexible hoses with use of a quick release coupling. Water connec-tion side always opposite the outside air intake opening side.

Facade module with integrated condensate tray with inserted traffic resistant 300 mm / 200 mm wide and ”LLLL” mm long ventilation grille of stainless steel or, alternatively, aluminum.

The ventilation module is suitable for taking floor panels. It meets Load Class 2 requirements (standard office areas nominal load 3000 N) according to DIN EN 12825 ”False Floors” or Load Class 3 according to the applica-tion guideline for false floors.

Dimensions and Dimensional Limits

FVD-A-LLLL-BBB-X ”A” = module; ”L” = length or size in mm ”B” = grille width facade module in mm ”X” = L for left, R for right version. Suitable for installation in false floors. Modular construction of the unit, splitted in facade module and ventilation module to meet any facade geome-try requirements. Unit feet height adjustable from the outside with a possi-bility for complete retraction without need to open the unit. Unit height [mm] 155 When placing a floor panel (38-40 mm thick) with floor covering (8-10 mm thick) on top: Min. overall height [mm] 203 (to upper edge ventilation grille) When placing a floor covering (8-10 mm thick) directly onto the ventilation module: Min. overall height [mm] 175 (to upper edge ventilation grille)

-5-




in € Total price

in €

Operating Overpressures

Admissible water‐side operating pressure 12 bar. Heat exchanger approved for a maximum water pressure of 15 bar.

Corrosion Protection

The unit housing is made of galvanized steel, visible parts powder coated. Ventilation grille of stainless steel or, alternatively, aluminum.

Manufacturer: LTG Aktiengesellschaft Series: Facade Fan Coil Unit Type: FVD-A Accessories/special version (optional, at extra charge): o Stainless steel grille o Aluminum - Roller grille o Prepared for installation in line

Differently formed side panel to take a connecting sheet and give the grille a continuous look

o Special version FVD-AL

prepared for adding an FVD-L module o Control With optional diffused air temperature sensor for thermal comfort and easy

control of the diffused air temperature, e.g. PT 1000 with 1 m cord and plug (e.g. white) for connection to the room controller.

o Antifreeze The unit may be equipped internally (optional) with a frost protection and a

digital diffused air temperature sensor. By mixing in room air the sensor may detect a frost hazard with diffused air temperatures as high as 10°C. The unit shuts off if the diffused air temperature drops below 10°C and res-tarts if it rises above 15°C. Alternatively, an independent automatic frost controller may be integrated.

o Straight-way valve with continuous actuator (0 – 10 V) cooling o Straight-way valve with continuous actuator (0 – 10 V) heating

Specification and Schedule of Prices Facade Fan Coil Unit (according to design patent DE 202004011906.4) Base Unit FVDplus-A Edition 4.2.2009 / page 1



in € Total price

in €

General Description

Facade fan coil unit with integrated recirculating air fan for installation in false floors for a decentralized ventilation of occupied rooms via the facade, and for heating and cooling outside air with added room air. room air is added in the ”outside air only” mode through induction, with the recirculating air fan operat-ing the added room air volume is significantly increased. The adding of room air results in: - increased caloric output. - high thermal comfort due to a temperat. increase of the diffused air. - lower risk of freezing and condensation.

Data and Classification according to VDMA Standard Sheet 24390 (draft)

Nominal heating capacity of the unit 300 Nominal room heating capacity

Grille width [mm] 300 Nominal recirculating air level [-] II Nominal outside air flow (+/- 8 %) [m3/h] 120 Outside air temperature [°C] -12 (temperature of the outside air sucked in by the unit) Room air temperature [°C] 22

Hot water supply temperature [°C] 75 Hot water return temperature [°C] 51,5

Nominal heating capacity of the unit (- 5 %) [W] 2744 Nominal room heating capacity [W] 1800 Nominal water flow rate [kg/h] 100 Nominal pressure loss [kPa] 3,4

Nominal cooling capacity of the unit 300 Nominal room cooling capacity

Nominal outside air flow rate (+/- 8 %) [m3/h] 120 Outside air temperature [°C] 32 (temperature of the outside air sucked in by the unit) Room air temperature [°C] 26

Cold water supply temperature [°C] 17 Cold water return temperature [°C] 20,3

Nominal cooling capacity of the unit (- 5 %) [W] 770 Nominal room cooling capacity [W] 530 Nominal water mass flow rate [kg/h] 200 Nominal pressure loss [kPa] 6,2

Free intake, free diffusion

Technical data apply for free suction on the intake opening and grille on the outlet.

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in € Total price

in €

Nominal outside air flow 300 Nominal outside air flow (+/- 8 %) [m3/h] 120 Sound power level Outside air fan

Sound power level (+/- 3dB) including F7 filter (free suction and diffusion): 120 m3/h (nominal outside air flow) [dB(A)] 40 90 m3/h [dB(A)] 35 60 m3/h [dB(A)] 32

Recirculating air fan

Sound power level (+/- 3 dB):

Speed level I [dB(A)] 29 Speed level II [dB(A)] 33 Speed level III [dB(A)] 40 Speed level IV [dB(A)] 45 Speed level V [dB(A)] 51 Sound reduction index

Weighted sound reduction index of the unit with open outside air damper re-lated to the suction area A.

A [m2] 0,018 Rw, [Ctr50-5000] [dB] 28, [-7]

Wind impact

Meets the highest requirements of Unit Category III for external static pres-sure differences of +/- 200 Pa.

Compensation of the filter pressure loss through integrated flow rate control. Maximum external pressure to be compensated with nominal outside air flow rate:

Nominal outside air flow rate (+/- 20 %) [m3/h] 120 Positive wind pressure [Pa] +1000 Negative wind pressure [Pa] -300

-3-




in € Total price

in €

Power consumption

Outside air fan Low‐noise centrifugal fan with energy‐saving, highly efficient, infinitely vari-able EC motor for outside air flow rates of 60 - 180 m3/h. 120 m3/h (nominal outside air flow) [W] 9 90 m3/h [W] 7 60 m3/h [W] 5 El. power consumption max. [W] 100 Required back‐up fuse [A] 10 Fan connection [V] 230 Recirculating air fan Low‐noise cross flow fan with energy‐saving, highly efficient 5-speed motor.

Speed I [W] 16 Speed II [W] 17,5 Speed III [W] 19,5 Speed IV [W] 22 Speed V [W] 27 El. power consumption max. [W] 40 Required back‐up fuse [A] 0,2 Fan connection [V] 230

Air filter for outside air and exhaust air

The supply air unit is equipped with an outside air filter F7 (including a warning sign for the direction of air, filter type, inspection interval and date of last filter change) - without exhaust air filter. Filters made entirely from synthetic composite materials

Supply air diffusers

Facade fan coil unit with mixed-in room air for high thermal comfort thanks to an increased temperature of the diffused air, and supply air diffuser with mixed displacement air flow. DIN 1946 Part 2 requirements are met for the nominal outside air flow.

-4-




in € Total price

in €

Outside air damper / Exit air damper Internal air tightness of the unit

In case of a power failure the outside air damper is shut automatically by an actuator with spring return.

Leakage air flow Meets: Reference- related to: permeabilitx for 100 Pa:damper dimension Class 4 Q100 = 0,13 m3/hm Leakage air flow of the outside air damper when shut: wind pressure +1000 Pa [m3/h] < 1 wind pressure -1000 Pa [m3/h] < 1 Internal leakage air flow [%] < 5

Condensate tray

The unit is provided with a condensate tray without drainage and slope for temporary condensate formation. Continuous condensate formation is not provided for and covered.

Sanitation

The upper material of the lining e.g. on the sound absorber and the 13 mm thick heat insulation is made of abrasion resistant glass fleece. Cut edges are protected against fibre release. The sound absorber sliding block inside the ventilation module may easily be removed to clean air conveying components. The ventilation module cover is easy to remove for inspection using a siphon. Filter, actuator , outside air damper, heat exchanger, and condensate tray are easily accessible inside the facade module underneath the supply air grille.

-5-




in € Total price

in €

Material

Unit with adjustable feet. The self‐supporting housing is made of galvanized steel, visible parts powder coated in black (other colors on request), a 4‐pipe heat exchanger with copper tubes and aluminum fins for cooling and heat-ing.

Heat exchanger connection with DN = 12 mm smooth copper tube for con-nection of flexible hoses with use of a quick release coupling. Water connec-tion side always opposite the outside air intake opening side.

Facade module with integrated condensate tray with inserted traffic resistant 300 mm mm wide and ”LLLL” mm long ventilation grille of stainless steel or, alternatively, aluminum.

The ventilation module is suitable for taking floor panels. It meets Load Class 2 requirements (standard office areas nominal load 3000 N) according to DIN EN 12825 ”False Floors” or Load Class 3 according to the applica-tion guideline for false floors.

Dimensions and Dimensional Limits

FVD-A-LLLL-BBB-X ”A” = module; ”L” = length or size in mm ”B” = grille width facade module in mm ”X” = L for left, R for right version. Suitable for installation in false floors. Modular construction of the unit, splitted in facade module and ventilation module to meet any facade geome-try requirements. Unit feet height adjustable from the outside with a possi-bility for complete retraction without need to open the unit. Unit height [mm] 155 When placing a floor panel (38-40 mm thick) with floor covering (8-10 mm thick) on top: Min. overall height [mm] 203 (to upper edge ventilation grille) When placing a floor covering (8-10 mm thick) directly onto the ventilation module: Min. overall height [mm] 175 (to upper edge ventilation grille)

-6-




in € Total price

in €

Operating Overpressures

Admissible water‐side operating pressure 12 bar. Heat exchanger approved for a maximum water pressure of 15 bar.

Corrosion Protection

The unit housing is made of galvanized steel, visible parts powder coated. Ventilation grille of stainless steel or, alternatively, aluminum.

Manufacturer: LTG Aktiengesellschaft Series: Facade Fan Coil Unit Type: FVD-A Accessories/special version (optional, at extra charge): o Stainless steel grille o Aluminum - Roller grille o Prepared for installation in line

Differently formed side panel to take a connecting sheet and give the grille a continuous look

o Special version FVD-AL

prepared for adding an FVD-L module o Control With optional diffused air temperature sensor for thermal comfort and easy

control of the diffused air temperature, e.g. PT 1000 with 1 m cord and plug (e.g. white) for connection to the room controller.

o Antifreeze The unit may be equipped internally (optional) with a frost protection and a

digital diffused air temperature sensor. By mixing in room air the sensor may detect a frost hazard with diffused air temperatures as high as 10°C. The unit shuts off if the diffused air temperature drops below 10°C and res-tarts if it rises above 15°C. Alternatively, an independent automatic frost controller may be integrated.

o Straight-way valve with continuous actuator (0 – 10 V) cooling o Straight-way valve with continuous actuator (0 – 10 V) heating

Specification and Schedule of Prices Facade Fan Coil Unit FVD – Empty Tray Module FVD-W Edition 24.11.2008 / page 1



in € Total price

in €

Empty tray module FVD-W for floor installation, prepared for subsequent add-ing on site of an extension module FVD-L, for connection to a facade fan coil unit FVD-A. Suitable for installation in false floors. Overall unit height 203 mm to upper edge of ventilation grille. Tray module with inserted 200 mm wide and 1200 mm long stainless steel venti-lation grille at the facade which may also be used as inspection opening. The self-supporting housing is made of galvanized steel with visible components powder coated similar to RAL matching the ventilation grille. Unit with feet, continuously height adjustable without the need to open the unit.. o Tray module with 300 mm wide grille (grille (for FVDplus tray module available with 300 mm wide grille only)) Manufacturer: LTG Aktiengesellschaft Series: Facade Fan Coil Unit Type: Tray Module FVD-W

Specification and Schedule of Prices Facade Fan Coil Unit FVD – Extension Module FVD-L for an increased output of the base unit FVD-A.

Edition 24.11.2008 / page 1



in € Total price

in €

Module FVD-L for on‐site extension of an empty tray module FVD-W with 200 mm wide grille, to increase the output of a facade fan coil unit FVD-AL, consist-ing of:

4-pipe heat exchanger with copper tubes and aluminum fins for cooling and heat-ing.

Heat exchanger connection with DN = 12 mm smooth copper tube for connec-tion of flexible hoses with use of a quick release coupling. Water connection side always opposite the outside air intake opening side. Coated fastening brackets for the heat exchanger, nozzle sheet of galvanized sheet steel. Air connection socket of galvanized sheet steel.

Accessories: o Duct for water-side connection of a facade fan coil unit FVD-AL or

FVDplus-AL o Flexible connecting tubes (accessories) for cold water/hot water with quick

release coupling o Alternative: Grille 300 mm wide (in connection with FVDplus tray module with 300 mm wide grille only). Manufacturer: LTG Aktiengesellschaft Series: Facade Fan Coil Unit Type: Module FVD-L

Specification and Schedule of Prices Heating Convector FVD-H Edition 24.11.2008 / page 1



in € Total price

in €

Underfloor convector type FVD-H for static heating. Heat exchanger made from Copper tubing with press-fitted aluminum fins for high caloric output. Heat exchanger connection with DN = 12 mm smooth copper tube for connec-tion of flexible hoses with use of a quick release coupling. Suitable for installation in false floors. Overall unit height 176 mm to upper edge of ventilation grille. The self-supporting housing is made of galvanized steel with visible components powder coated similar to RAL matching the ventilation grille. Unit with feet, continuously height adjustable without the need to open the unit. Manufacturer: LTG Aktiengesellschaft Series: Facade Fan Coil Unit Type: Heating Convector FVD-H

Facade Fan Coil Unit Type FVD/FVDplus · Facade Fan Coil Unit Type FVD for floor installation with...

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