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PROBLEM
THE CHILLER DOES NOT WORK The electrical panel has no power
HIGH OUTPUT PRESSURE OR
INTERVENTION OF HIGH
PRESSURE PRESSOSTAT
PROBLEM SOLVING
GUIDE TO PROBLEM SOLVING
POSSIBLE CAUSE
supply
The microprocessor control circuit
board has no power supply
The microprocessor control has
power supply but does not start
the unit.
Airflow
to
the
insufficient
or
temperature is too high.
The condensation pressure
control system is not efficient
One or more fans is not working
There is air in the circuit, shown
by bubbles despite over-cooling
There is too much refrigerant in
the
circuit;
the
partially flooded.
Dirty condenser or metal filters
CHECK/CORRECTIVE ACTION
Check for mains power
Check that the main switch is
closed
Check that the IM8 automatic
auxiliary circuit switch is armed
Check that the fuses are active
Check for alarm conditions
condenser
is
Check for any re-circulation of
the
intake
condensation
distances given in the section on
"Positioning
respected
Check that the temperature of the
condensation air is within the unit's
function limits
Check that the coils / metal filters
are not dirty.
Check the fan rotation direction
Check the setting and correct
function of the fan speed regulator.
Check
protection
Re-set or change the faulty fans
Evacuate and re-charge the circuit
Excessive cooling of the liquid at
condenser
is
the
some refrigerant from the circuit.
Remove
(leaves, paper, etc.)
41
air
and
that
the
chiller"
for
intervention
condenser
output;
obstructing
the
are
of
fan
remove
material
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