Ingersoll-Rand R110IU-10, Manual

Page: 11 / 79

11
.
Safety valve blows
when compressor
loads.
Minimum pressure valve
(MPV) stuck closed.
Strip the MPV, examine and
repair if necessary.
Blocked separator element
Check differential pressure
and replace element
Check the setting of the
safety valve and the rated
pressure.
Safety valve faulty
Motor reverse
rotation
Fault T 1
Emergency stop activated
Change any 2 of the
incoming power wires to
change motor rotation
Emergency Stop
Fault T 2
Incoming power wired to
package incorrectly
Clear fault hazard twist
emergency stop button to
reset.
Compressor will not start
below 2 deg C (28 deg F),
unless fitted with low
ambient option ( − 10_C)
(14 deg F)
Low ambient
temperature
Fault T 4
Wait until compressor
package air temperature
rises above minimum starting
temp requirement.
Blocked separator element
Blow down system
ineffective
Replace separator element
Check the operation of the
load solenoid valve.
Check un-loader valve − strip
and clean if necessary.
High sump air
pressure.
Faults T 5, W 5
MPV stuck closed Strip MPV, examine and repair
if necessary.