Table of Contents
Advertisement
4 | Compressor assembly
INFO
4.1 Ignition source control of the compressor
To protect against an exceeding of temperature the protection type ignition source control "b" is
used at the compressor. Via sensors, the areas with the highest heat potential at every cylinder
cover are controlled. Additionally, the temperature of the motor winding is controlled by the safety
device INT69 EX2.
The permissible limit temperatures for normal operation of the compressor were set with 130 °C for
the motor and with 140 °C for the hot gas side of the cylinder cover. If one of those values is exceeded,
the compressor is shut down by the control device INT69 EX2. Besides the installation according to
wiring diagram, the operator/installer does not have to regard other parameters for the correct func-
tioning of the ignition protection system. A function check however has to be carried out before every
startup of the compressor according to section 5.7 of this assembly instruction.
For a safe function of the ignition source control the INT69 EX2 has to be installed according to the
wiring diagram fig. 25, the restart interlock (bridge B2) must not be removed in any case. Check the
function of the ignition protection system according to section 5.8. Defective sensors or ignition pro-
tection systems have to be replaced before reconnection of the compressor.
Operation of the compressor without igintion source control is not permitted!
After shutdown by the INT69 EX2, precise error diagnostics and error correction is necessary.
The INT69 EX2 has a restart interlock that can only be interrupted by means of voltage inter-
ruption.
• New compressors are factory-filled with inert gas. Leave this service
charge in the compressor for as long as possible and prevent the
ingress of air.
• Check the compressor for transport damage before starting any
work.
• Before starting work, obtain written work release.
• Observe national regulations when setting up explosion-protected
systems (within the EU: ATEX Directive 1999/92/EG, EN 60079-14,
EN 60079-17 a.o.).
• Use only tools permitted for explosion-protected systems (within
the EU, in accordance with EN 1127-1).
• Observe work safety rules (TRGS 727, e.g. protective shoes,
clothing etc.)!
D
GB
F
E
I
15
Advertisement
Table of Contents
