Maximum working gauge
pressure [psi]
Activating pressure [psi]
10
12
12
14
14
15.9
Tab. 27 Safety relief valve opening pressure
2.5.4 Temperature
Required temperatures readiness to switch to LOAD
mode
Values
Airend discharge temperature (ADT) [°F]
20
The engine coolant temperature (ECT) [°F]
20
Tab. 28 Required temperatures readiness to switch to LOAD mode
Airend discharge temperature
Values
Typical airend discharge temperature during opera‐
tion [°F]
75 ..... 100
Maximum airend discharge temperature (automatic
safety shut-down) [°F]
117
Tab. 29 Airend discharge temperature
2.5.5 Cooling oil recommendation
A sticker showing the type of oil used is located near the oil separator tank filler.
Information on ordering cooling oil is found in chapter 11.
Cooling oils for general applications
SIGMA FLUID
MOL
S-460
S-570
Description
Mineral oil
Silicone-free,
synthetic oil
Synthetic oil
Application
Standard oil for all appli‐
cations except in con‐
nection with food prod‐
ucts.
Particularly suitable for
machines with a low duty
cycle.
Standard oil for all applica‐
tions except in connection
with food products
Particularly suitable for ma‐
chines with a high duty cy‐
cle.
Special oil for ambient
conditions with high tem‐
peratures and humidity.
Standard oil for all appli‐
cations except in connec‐
tion with food products.
Particularly suitable for
machines with a high duty
cycle.
Approval
—
—
—
Viscosity at
104°F
44 mm
2
/s
(DIN 51562-1)
45 mm
2
/s
(D 445; ASTM test)
52.8 mm
2
/s
(D 445; ASTM test)
2
Technical Data
2.5
Compressor
No.: 901765 05 USE
Operator Manual Screw Compressor
M114 SIGMA CONTROL SMART
11
