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Safety relief valve activating pressure [psi]
Maximum working pres‐
sure [psig]
AIRTOWER 3C AIRTOWER 4C AIRTOWER 5C
AIRTOWER
7.5C
125
155
155
155
155
160
230
230
230
230
217
—
230
230
230
Tab. 9 Safety relief valve activating pressure
2.8 Air receiver
Volume
AIRTOWER 3C AIRTOWER 4C AIRTOWER 5C
AIRTOWER
7.5C
Volume [gal]
53
53
53
53
Tab. 10 Air receiver: Volume
Safety relief valve activating pressure [psig]
Maximum working pressure: see air receiver nameplate
Maximum working pres‐
sure [psig]
AIRTOWER 3C AIRTOWER 4C AIRTOWER 5C
AIRTOWER
7.5C
155
165
165
165
165
217
230
230
230
230
Tab. 11 Safety relief valve: activating pressure
2.9 Free air delivery (FAD)
FAD [cfm]:
Maximum working pres‐
sure [psig]
AIRTOWER 3C AIRTOWER 4C AIRTOWER 5C
AIRTOWER
7.5C
125
12
16
21
28
160
9
13
17
24
217
—
9
13
19
FAD as per ISO 1217:2009, Annex C
Tab. 12 Free air delivery
2.10 Cooling Oil Recommendation
A sticker showing the type of oil filled is located near the oil separator filler.
Information for ordering cooling oil can be found in chapter 11.
2
Technical Data
2.8
Air receiver
9_6917 34 USE
Operator Manual Screw Compressor
AIRTOWER 3C–7.5C Tri-Voltage
7