Pneumatech AD 1250, Instruction Book, Page: 20 / 45

Instruction book
20 9828 0931 61
Text on figure:
Reference Name
(1) Compressor
(2) Air receiver
(3) To the air piping
(4) Dryer
(5) Ventilation proposal
(6) Air flow
(7) Minimum free area to be reserved for the dryer’s installation
(8) Service side
(9) Control panel side
•
Air treatment with dryer downstream of the air receiver: this can be used when the
compressor runs constantly and the cooling capacity of the dryer is equal to the air delivery of the
compressor. Under this condition the load of the dryer is constant.
•
Air treatment with dryer upstream of the air receiver: this can be used when the air demand
is variable. For short periods the air demand is higher than the air delivery of the compressor;
the air receiver must be large enough to meet the instant air demand.
Reference Description
1 The refrigerant air dryer should be installed on a level floor suitable for taking the
weight of the dryer.
Ensure that there is sufficient space around the machine to allow maintenance.
Keep environmental conditions (temperature and humidity) in the machine room
stable to avoid refrigerant compressor/fan overload and/or reduction of dryer
performance. Similar failures will invalidate the warranty.
2 Ventilation: the inlet grids and ventilation fan should be installed in such way that
any recirculation of cooling air to the dryer is avoided. The maximum air velocity to
the grids has to be limited to 5 m/s. The maximum allowable pressure drop over the
cooling air ducts is 30 Pa. When 30 Pa is exceeded, a ventilation fan is needed at
the outlet of the cooling air ducts.
Ensure appropriate composition of the air within the machine room.
The condensate drain pipes must not dip into the condensate. Do not allow
untreated condensate to enter the draining system.
Ensure canalization system (duct and fan) is designed properly. Incorrectly
designed canalization system will lead to machine warranty being made void.
The operating conditions to be complied with are the following:
•
Min. room temperature: +5
°
C (41
°
F) (compulsory)
•
Max. room temperature: +46
°
C (114,8
°
F) (compulsory)
•
Min. inlet allowed temperature: +3 ° C (37,4 ° F)
•
Max. inlet allowed temperature: +60
°
C (140
°
F)
•
Max. working pressure: 14 bar (203 psi)
3 Power supply cable to be sized and installed by a qualified electrician.
Check that the supply voltage is the same as the value indicated on the machine data
plate.
It is recommended to install an automatic cut-out device (in customer scope)
upstream for the machine against overcurrent, with a differential device.
4
Optionally line filters can be provided. Contact your dealer for more info on the
filtration kind and level desired.