Idiomas disponibles
Idiomas disponibles
OCCASIONAL DEFECT
Main motor current
above the operating
rated current.
Intermittent noise at the
start.
Installation not in compliance with the related standard.
The contactors seem not
to activate.
Voltage drop in the secondary of the 24-V transformer at the start.
Overheating of the
compressor.
Excessive vibration or
noise.
It won't let the condensate out of the air dryer, overflowing the heat
exchanger and allowing the dragging of condensate to the system.
The presence of dirt or particles in the drain system may clog the
Solenoid drain valve not working. Plunge of the solenoid valve stuck
or coil burnout, not allowing the activation of this component.
It will not dry the com-
Temperature of the compressed air in the inlet of the dryer excessi-
pressed air (presence of
humidity in the system
or in the tank).
Ambient temperature too high (above 45°C), decreasing the capacity
of thermal exchange of the condenser, jeopardizing the efficiency of
Thermal protector of the refrigeration compressor activating.
Ambient temperature too high (above 45°C), decreasing the capacity
of thermal exchange of the condenser, jeopardizing the efficiency of
It hinders the expelling of condensate from the drain system.
Temperature sensor disconnected, broken or in short circuit. In any of
those conditions, the electronic controller will not allow the activation
If the ambient temperature is too high (above de 38°C), the thermal
exchange in the condenser is jeopardized and the condensing pressu-
Dryer shuts down
re goes up, activating the pressure switch of high pressure.
without any apparent
In case of voltage variations above 10%, the dryer controller goes off,
reason.
The fans (or fan) turn on and off according to the needs of the equip-
ment. It may happen that they are continuously on, but if they do not
turn on at any time up to the dryer shuts down without any apparent
reason, it is possible that there is a problem in their electric circuit,
PROBABLE CAUSE
Rotation reversed.
Voltage below the specification.
Compressing assembly stuck.
Voltage drop in the power supply.
Air filter clogged.
Radiator clogged.
Fan will not turn on.
Bearings of motors or air end damaged.
Fan blade broken.
Belts loose or worn out.
Needle valve is closed.
Drain system clogged by dirt.
passage of condensate.
High temperature of the compressed air.
vely hot.
High ambient temperature.
the air dryer.
the air dryer.
Drain hose to long or with a diameter too small.
A single drain hose for several dryers.
It may hinder the proper drain of the equipment.
of the dryer.
Electronic controller unadjusted.
That will not allow the activation of the dryer.
Pressure switch of high pressure goes off.
activating Alarm.
Pressure switch of high pressure goes off.
stuck rotors or fault in the motors.
Recheck the dimensioning of the cables.
Request the presence of the Technical Assistance.
Recheck the dimensioning of the power supply cables, obser-
ving the distance from the power supply (transformer).
Check how much the voltage drops in the command at the
Check discrepancy between the phases.
Check if there are no command wires loose.
Check the cause and if the problem persists, request the
presence of the Schulz Autorized Dealer.
Identify where the noise is and request the presence of the
Request the presence of the Technical Assistance.
Adjust the tension or replace the belts.
Make sure the drain needle valve is open enough. If not, turn
the handle of the valve counterclockwise in order to increase
the discharge of condensate during the drains. It is not neces-
sary the open the valve completely; just the necessary.
Depressurize and shut down the dryer. Then disassemble the
drain system, clean it and assembly again. If you have any
questions about how to do the cleaning, contact a SCHULZ
Contact a SCHULZ AUTHORIZED DEALER.
Check the temperature in the discharge of the compressor of
compressed air. Clean the radiator.
Check if the ambient temperature is above 45°C. If so, provide
For help, contact a SCHULZ AUTHORIZED DEALER.
Contact a SCHULZ AUTHORIZED DEALER to check if your dryer
Install hoses with a maximum length of 4 meters and internal
Use independent hoses for each drain system if there are more
Check if the electronic controller is indicating any of the errors
mentioned in manual. If so, contact a SCHULZ AUTHORIZED
Check if led "P1" of the controller is on.
If so, contact a SCHULZ AUTHORIZED DEALER.
Check if the ambient temperature is above 38°C.
If so, provide means to lower the temperature.
For help, contact a SCHULZ AUTHORIZED DEALER. Clean the
condenser according to the instructions of table 5.
Contact a SCHULZ AUTHORIZED DEALER.
77
SOLUTION
Check the rotation direction.
moment of start.
Check the cause and eliminate it.
Replace the filtering element.
Clean it.
Technical Assistance.
AUTHORIZED DEALER.
means to lower the temperature.
is correctly dimensioned.
diameter of at least 5/16".
than one dryer installed.
DEALER.
