LTG HDF-600, Инструкция по эксплуатации, установке и обслуживанию

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LTG Incorporated · PO Box 2889 · Spartanburg, S.C. 29304, USA Chilled beams HDF-us-OM (01/17)
Phone 864 599-6340, Fax -6344 · info@LTG-INC.net · www.LTG-INC.net
Former editions are invalid · Subject to technical modifications
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Installation, operating and maintenance instructions
Active chilled beams HDF-600, ceiling installation
7.7.2 Condensate formation
LTG induction units are not designed for operation with
condensate formation. No drain pan or drip tray.
In all cooling modes, the entering water temperature
needs to be always above the dew point temperature of
the air.
If the windows can be opened local monitoring for conden ­
sation is highly recommended:
-
by means of a temperature sensor close to the valve
in the water supply pipe (coldest spot)
- by means of window contacts
If activated by condensation or opening of a window, the
sensor needs to shut off the chilled water valve.
Another option is, to always keep the chilled water supply
temperature above the dewpoint temperature of the out
­
side air. Therefore the dewpoint of the outside air needs
to be monitored.
LTG Aktiengesellschaft is not liable for
water damage in the building, caused by
condensation at or around the chilled
beams.
Trouble Source Action
Increased indoor humidity, increased
condensate formation Window open Close window, continue unit operation
No air movement at the induction unit
outlets Primary air unit failure Switch unit back on and remove trou ­
ble, if any (see specific instructions)
Diffused air temperature at the unit's
diffuser outlets is extraordinarily high,
in the primary air center no or too little
water precipitation on the cooler No or too little cooling of the primary air
unit, therefore no or too little dehumidi
­
fication
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 parame ­
ter settings; repair/replace broken
parts
Increased indoor air humidity
perceivable Considerable moisture sources in the
room (wet outer wear, significantly in
­
creased occupancy, etc.)
Remove moisture sources
If impossible, temporarily shut off unit
water-side
Measured cold water temperature is
lower than approx. 59 °F (ask techni
­
cian for setting)
Diffused air temperature is extremely
low
Cold water supply temperature to the
units is too low Check cold water control including
valve and actuator. If necessary, re
­
store proper settings, replace or repair
broken parts