Trane Jupiter JDAC Series User Manual

30
HUMIDITY CONTROL
FANS
ELECTRIC HEATER
PROBLEM POSSIBLE CAUSE CHECK/CORRECTIVE ACTION
ROOM HUMIDITY TOO
HIGH
A) The parameter settings on the control panel
are not correct.
See control panel instruction manual.
B) The latent load is higher then expected.
Check the latent load, fresh air conditions and
volume; external air inltration.
C) The compressor does not function during
dehumidication.
See “THE COMPRESSOR DOESN’T WORK”.
ROOM HUMIDITY TOO
LOW
A) The parameter settings on the control panel
are not correct.
Check the room humidity settings (see control
panel instruction manual).
B) The latent load is lower than expected. Check the quantity of latent heat.
C) The humidier doesn’t work.
1) Check the water supply pressure.
2) Check the function of the manual control
system and of the steam production group (see
panel instruction manual).
D) The control system does not work.
See the control panel instruction manual; check
that the control panel and/or sensors work
properly.
PROBLEM POSSIBLE CAUSE CHECK/CORRECTIVE ACTION
ABSENT OR LOW AIR
FLOW
A) There is no power to the fans. Check the power supply to the fans
B) The air lters are clogged (dirty lter alarm
enabled).
1) Shake the dust out of the cartridge and clean
with a vacuum cleaner. Replace the lter if it is
completely blocked.
2) Check the correct setting of the dirty lter
pressure switch PFS.
C) The air ow is obstructed.
Check that the air ow is not obstructed, not
even partially.
D) The fans’ thermal protection intervenes.
Check the resistance of the fan motor
windings. Re-set then measure the voltage and
absorption.
E) The power supply to the fans is insufcient.
Change the power supply voltage to the fans.
(See paragraph. ‘Setting and adjustment).
F) The air distribution output pressure is too
high.
Check the air pressure distribution (ducts,
ceiling or oor plenum, grilles).
PROBLEM POSSIBLE CAUSE CHECK/CORRECTIVE ACTION
INTERVENTION OF
ONE OR BOTH OF THE
ELECTRICAL HEATERS’
SAFETY THERMOSTATS
A) There is insufcient air ow. See “LACK OF / ABSENT AIR FLOW”.
B) The thermostat connection wire is interrupted
Check the continuity of the connection of the
safety thermostats and the control system
C) One or both of the thermostats are broken
Replace one or both of the electrical heaters’
safety thermostats

Trane Jupiter JDAC Series Specifications

General

Brand	Trane
Model	Jupiter JDAC Series
Category	Chiller
Language	English