2.16 Refrigerated dryer
Model
AIRTOWER 3C AIRTOWER 4C AIRTOWER 5C AIRTOWER 5C
Model *
* Read off the dryer model from the dryer nameplate and enter it in the table.
Tab. 20 Refrigerated dryer: Model
Compressed air system
CT 4
CT 8
Pressure drop [psi]
(referred to 100 psig
working pressure)
3
3
Maximum permissible
working pressure [psig]
232
232
Tab. 21 Refrigerated dryer: Compressed air system
Refrigerant system
The refrigerated dryer contains a refrigerant that is classified by the Kyoto Protocol as a fluoridised
global warming gas. This refrigerant is required for the function.
The refrigerant system is hermetically sealed.
CT 4
CT 8
Refrigerant
R-134a
R-134a
Global warming potential
(GWP)
1430
1430
Charge quantity
2)
[lb]
0.42
0.49
Charge quantity as CO
2
equivalent [t]
0.27
0.31
Maximum permitted
working pressure [psig]
(high pressure end)
261
261
Maximum permitted
working pressure [psig]
(low pressure end)
232
232
Safety pressure switch:
Cut-out pressure [psig]
261
261
2)
Volume of fluoridated global warming gases for which the refrigerant system was designed.
Tab. 22 Refrigerated dryer: Refrigerant system
2
Technical Data
2.16 Refrigerated dryer
12
Operator Manual Screw Compressor
AIRTOWER 3C–7.5C Tri-Voltage
9_6917 34 USE
