Description of functions
The text in this chapter Description of
functions refers to the:
• Circuit and connection diagrams and Block
diagram on pages 48 – 51.
1. Compressor section
Air inlet with filter
The AIR INLET WITH FILTER supplies
ambient air from the 3. DRYER SECTION to
the 1.2 SILENCER. The filter is made of a
felt, and must be replaced at the 2000 hour
overhaul as well as at the 8000 hour
overhaul. The filter must not be cleaned in
The air inlet SILENCER will reduce the noise
from the air inlet of the compressor at the
same time as it works as an air distributor to
the two cylinder heads of the 1.6 COMPRES-
The TEMPERATURE SENSOR detects the
temperature inside the 1. COMPRESSOR
SECTION. If the temperature at this sensor
exceeds 70°C ±3°C (158°F ±5°F), the
temperature alarm is activated.
The temperature alarm is deactivated when
the compressor is switched off or when the
temperature at the sensor drops below
55°C ±6°C (131°F ±11°F).
The temperature alarm function is further
described in section 5.6 TEMPERATURE
The Compressor Compact is equipped with
a single phase electric MOTOR. The motor
is designed according to IEC 34 standards.
There are several different versions of the
motor each adapted to different mains power
supply and frequence.
The motor is equipped with a thermal switch
that will disconnect the current through the
motor if the motor is overheated.
115 V version
The 115 V motor is fitted with a manually
resetable thermal switch. When the motor
has cooled down, the thermal switch must be
reset manually by pushing the reset button
on the motor.
230 V version
The 230 V motor is fitted with a self-resetting
thermal switch. When the motor cools down,
the thermal switch will automatically restart
Note – 230 V versions of the Compressor
Compact as well as spare part motors
manufactured up to and including June 1993
are not equipped with this thermal switch.
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