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
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Grenzstraße 7
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D-70435 Stuttgart
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+49 (0711) 8201-0
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Fax -720
Internet: http://www.LTG-AG.de
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E-Mail: [email protected]
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Printed in Germany
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Ausgaben mit früherem
Datum werden hiermit ungültig
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Technische Änderungen vorbehalten
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Former editions are invalid
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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
