Jun-Air 1000 motor, Operating Manual

6

Pressure vessel

Pressure tested at:       4­25 liter: 

40­50 liter:

Directions for use
Application 

Receiver for compressed air.

Receiver specifications  See name plate.
Installation 

Tubes, etc. must be made of  

suitable materials.

Placement 

Observe the working temperature    

of the receiver.

Ensure that sufficient room for  

inspection/maintenance is  

available in a horizontal position.

The receiver must be kept in a  

horizontal position.

Corrosion protection 

The surface treatment must be  

maintained as required.

Internal inspection at least every    

5 years.

Drain moisture at least once a week.

Alternation/repair 

No welding must be made on  

pressurized parts.

Safety valve 

Ensures that PS will not be exceeded.

Never adjust to a higher pressure    

than PS.

The capacity of the valve must be    

calculated in accordance   

with the volume of air supplied by    

the compressor.

(PS = Maximum working pressure    

of the receiver)

Declaration of Conformity

NOTE: The declaration of conformity is only valid for units 
operating at 20 V/50 Hz, x400 V/50 Hz, 12 V DC or 24 V DC.

The manufacturer, JUN­AIR International A/S, declares that the 
products mentioned in this manual are in conformity with:
•  87/404/EEC ­ 90/488/EEC ­ 9/68/EEC Council Directive  
 

relating to Simple Pressure Vessels

•  89/92/EEC ­ 91/68/EEC ­ 9/44/EEC ­ 9/68/EEC  

Council Directive of Safety of Machinery               

•  89/6/EEC Council Directive of Electric Magnetic  

Compatibility 

•  7/2/EEC Low­voltage Directive

Flemming Petersen
Quality Manager

24 bar

18.3 bar

c)  Failure in non­return valve which is creating a flow 

restriction.

d)  Check the piston gaskets. Replace, if necessary.

e)  Desiccant has been contaminated and/or filter elements 

have been   clogged (this only applies to model „D“). 
Replace. See "Adsorption Dryer Manual".

4.  Loud noise from compressor:
 

a)  Dirt or failure in non­return valve. Clean or replace.

b)  Defective fan (this only applies to model „P“).

5.  Compressor gets very hot:
 

a)  Leaks. See point b.

b)  Intake filter clogged. See point a.

c)  Too high ambient temperature. Do not enclose unit in a 

cupboard unless adequately ventilated. The compressor 
should be placed in coolest possible place.

d)  The cooling fan at the top of the cabinet does not run 

(this only applies to model „P“). Check pipes and fuses.

e)  Overloaded. Ensure compressor is correct model for 

work load.

6.  Compressor starts when no air is being tapped:
 

a)  Leaks. See point b.

7.  Compressor starts and stops more frequently than 

usually:

a)  Large amount of condensate in air receiver (on units 

without dryer). On units with dryer condensate may be 
found if dryer is defective (this only applies to model 
„D“).

b)  Leaks. See point b.

8.  Compressor does not switch on against pressure or 

does not switch off at max. pressure:

a)  Defective pressure switch. Replace.

Operating manual

GB