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Original Instructions for Installation, Use and Maintenance
Active Chilled Beam Type HDC

Section:

Page:

Date:

AG--B 213.1e

32

Feb. 2010

The Innovation Company

LTG Aktiengesellschaft

E

LTG Aktiengesellschaft

Grenzstraße 7

D-70435 Stuttgart

+49 (0711) 8201-0

Fax -720

Internet: http://www.LTG-AG.de

E-Mail: [email protected]

Printed in Germany

Ausgaben mit früherem

Datum werden hiermit ungültig

Technische Änderungen vorbehalten

Former editions are invalid

Subject to technical modifications.

6.8.2

Condensate formation

LTG induction units are

not

designed for operation with continuous condensate formation.

For a short--term condensate formation, units are provided with a condensate tray underneath the cooler which

may also be connected to a drainage system. In case this condensate tray is not connected to a drainage system

it may serve for short--term collection of condensate which will again evaporate from the tray. LTG Aktienge-

sellschaft does not recommend units without condensate drainage system unless either the windows cannot

be opened or, in case the windows can be opened, all induction units of the corresponding room are automati-

cally water--side disconnected. If there is no such device, users must reliably disconnect the induction units

water--side whenever windows are opened and if cooling is required since the condensate trays would over-

flow when the unit is operated with a long--term condensate formation resulting in considerable damages to

the building and equipment.
If, during operation, condensate is overflowing close open windows without delay. If all windows were al-

ready closed units must be disconnected. Immediately catch any overflown water and remove to minimize

potential damages to building and equipment.
Then investigate and remedy the cause of such excessive condensate formation.

Trouble

Source

Action

Increased indoor humidity, in-

creased condensate formation

Window open

Close window, continue unit

operation

No air movement at the induc-

tion unit outlets

Primary air unit failure

Switch unit back on and remove

trouble, if any (see specific in-

structions)

Diffused air temperature at the

induction unit diffuser outlets is

extraordinarily high, in the pri-

mary air center no or too little

water precipitation on the coo-

ler

No or too little cooling of the

primary air unit, therefore no or

too little dehumidification

Check cooling system, remove

trouble if any, check shut--off

valves and dirt trap in the cold

water ducts; if necessary, open

valves and clean dirt traps; check

control including valves and ac-

tuators; if necessary readjust pa-

rameter settings; repair/replace

broken parts

Increased indoor air humidity

perceivable

Considerable moisture sources

in the room

Remove moisture sources

If impossible, temporarily shut

off unit water--side

Measured cold water tempera-

ture is lower than the setting (ask

technician for setting). There-

fore, diffused air temperature is

extremely low

Cold water temperature to the

units is too low

Check cold water control inclu-

ding valve and actuator. If ne-

cessary, restore proper settings,

replace or repair broken parts

Part of the condensate trays is

overflowing despite of drainage

system

Condensate drainage system

clogged

Remove clogging

In the meantime, increase inlet

temperature or shut off unit

Содержание feel cool HDC

Страница 1: ...ions for Installation Use and Maintenance Active Chilled Beam HDC LTG Aktiengesellschaft D 70435 Stuttgart Grenzstra e 7 D 70405 Stuttgart Postfach 40 05 25 49 0711 82 01 0 Fax 49 0711 82 01 720 Inter...

Страница 2: ......

Страница 3: ...ns 7 1 2 Storage 7 2 Function 8 2 1 Intended Use 8 3 Technical Specifications 9 3 1 Dimensions 9 3 2 Performance Data 11 3 3 Caloric Output Data 15 3 4 Acoustic Data 15 3 5 Hydraulic Data 15 3 6 Weigh...

Страница 4: ......

Страница 5: ...schriften hergestellt abgebautoder ge ndertwerden Do not open the unit for cleaning maintenance or repair and do not remove covers and casings air diffuser unless all conducting lines have been comple...

Страница 6: ......

Страница 7: ...Pallets may be moved using forklifts or cranes Do not remove the packaging unless immediately prior to installation on site to protect the unit from pollution and damages LTG Aktiengesellschaft will n...

Страница 8: ...ixed with the heated or cooled secondary air and delivered into the room Hygienic operation is achieved by avoiding dehumidification of the secondary air min 2 8 m min 3 00 m Facade Section through a...

Страница 9: ...ig Technische nderungen vorbehalten Former editions are invalid Subject to technical modifications 3 Technical Specifications 3 1 Dimensions Dimensions 4 pipe System flanged Installation primary air a...

Страница 10: ...in Germany Ausgaben mit fr herem Datum werden hiermit ung ltig Technische nderungen vorbehalten Former editions are invalid Subject to technical modifications Dimensions 2 pipe System flanged Install...

Страница 11: ...t W K Qk 1 W QP 1 W wok pw kg h kPa Qh t W K Qh 2 W woh pw kg h kPa 40 50 22 28 13 24 240 130 100 8 5 20 800 100 6 2 50 77 23 29 17 30 300 170 25 1000 60 110 26 32 20 36 360 200 30 1200 70 150 29 35 2...

Страница 12: ...che nderungen vorbehalten Former editions are invalid Subject to technical modifications Water side Pressure Loss and Cooling Capacity with different water Flow Rates Type HDC 4 pipe System standard F...

Страница 13: ...che nderungen vorbehalten Former editions are invalid Subject to technical modifications Water side Pressure Loss and Heating Capacity with different water Flow Rates Type HDC 4 pipe System standard F...

Страница 14: ...Germany Ausgaben mit fr herem Datum werden hiermit ung ltig Technische nderungen vorbehalten Former editions are invalid Subject to technical modifications Water side Pressure Loss and Cooling Capaci...

Страница 15: ...ize The correction charts give a graphic illustration of how outputs change with other flow rates compared to no minal flow rate output Flow rates have been determined through calculation and may vary...

Страница 16: ...w on the box The packaging is disposable and not to be returned to LTG Timing of Installation Installation of the units should not be performed unless the prefabricated floor has been finished the win...

Страница 17: ...wisting Pipe fittings must always be flush In order to adjust the water volume specified in the selection data a regulating device or restricting olive will be required If identical units with exactly...

Страница 18: ...ide water supply unit s back side water return Example for water connection using flexible hose Quick coupling connection to heat exchangers Hose without insulation For insulated hoses dimensions will...

Страница 19: ...will change accordingly 10 mm Armaflex insulation Hose for connection to angle or straight way valve Connection type AGK external thread tapered 1 2 Different hose connections thread diameter acc to...

Страница 20: ...al elongation Do not fall below the admissible bending radius Rmin chart neither during trans port nor during installation or when in stalled If it should turn out impossible to keep the admissible be...

Страница 21: ...ystop up to 70 _C diffusion inhibiting marked through weaved in blue strip Armoured hose EPDM up to 93 _C vapour permeable not marked ND hose DA PN bar Rmin Lmin Lmin 90_ Lmin 180_ Lmin 360_ 06 08 12...

Страница 22: ...nner ring Outer ring of copper Stainless steel retaining ring Tube connection of plug in fitting and bright copper tube according to EN 1057 and RAL 641 1 or suitable brass or red brass socket This pe...

Страница 23: ...clip in a way to ensure a 2 mm mini mum clearance between clamping screw and clip Primary air side pressure balance One way toadjust the primary airvolume isthe use of a throttling device which maybe...

Страница 24: ...elivered in a separate bag for subsequent installation or may be factory installed in the socket type KLI please specify in your order However this device for adjusting the air volume should only be u...

Страница 25: ...mit fr herem Datum werden hiermit ung ltig Technische nderungen vorbehalten Former editions are invalid Subject to technical modifications 0 2 4 6 1 2 3 60 70 80 90 100 110 120 60 80 100 200 300 1 2...

Страница 26: ...tioning of the motors fan actuators without friction noises the unit s fixation the diffusion area diffusion grille of the unit to be free of any obstructions proper horizontal alignment accurate to d...

Страница 27: ...22 6 2 Filter Unit with filter If a recirculated air filter exists it requires replacement about 2 3 months after first use of the unit By that time it will probably be saturated from carpet lints and...

Страница 28: ...er to the desired value usually in the range s center If after a certain time you consider this too cold turn the knob in direction of warmer If considered too warm turn the knob in direction of coole...

Страница 29: ...o technical modifications 6 7 Repair If the damage is not obviously a mere damage to the bodywork e g on the condensate tray or outlet units should be completely replaced and checked by the factory Fi...

Страница 30: ...eck and if necessary open Check control No valve spindle movement when actuator motor signal is being changed Actuator is stuck Set the temperature controller from max hot to max cold and vice versa m...

Страница 31: ...d thus partly blocked Replace nozzles or clean if possible dust deposits are usually hard to remove which makes replacement in general more economical than clea ning This may be performed through the...

Страница 32: ...pen windows without delay If all windows were al ready closed units must be disconnected Immediately catch any overflown water and remove to minimize potential damages to building and equipment Then i...

Страница 33: ...eplace filter medium document 12 x Check for hygienic condition 3 Heat exchanger Check for pollution damage and corrosion 6 Clean to maintain function 6 x Check water connections 12 Check proper funct...

Страница 34: ...m LTG Aktiengesellschaft stating unit type and description Qty Ident No Description Minimum order quantity 1 1014486 Heat exchanger size 1000 for 4 pipe 1 1 1008632 Heat exchanger size 1000 for 2 pipe...

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