Gardner Denver L160 110A V2, Руководство пользователя

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Design and function 3
January 2017 America 23 /72
•
The cooling air fan (-25-) is speed-controlled
based on the final compression temperature
(only L xxx RS with fan speed control A – air-
cooled units).
•
The cooling water solenoid valve (-xx-(Y6))
is opened and closed based on the final
compression temperature (only L xxx W –
water-cooled units).
•
If the pressure at the line pressure sensor
(-35-(B1)) does not drop to the set lower
switching point within the set run-on time (e.g.
120 seconds), the drive motor (-3-) and the
cooling air fan (-25-) are shut down and the unit
is depressurised to atmospheric pressure. The
cooling water solenoid valve (-xx-(Y6)) is shut
in a currentless state (only L xx W).
•
The unit is now in stand-by mode and can
restart at any time once the line pressure drops
to the set lower switching point (see section
“Starting the unit”).
•
If the line pressure drops to the preset lower
switching point within the set motor run-on
time, the solenoid valve (-19-(Y1)) is supplied
with current again and the blow-off valve (-20-
(Y4) is shut.
•
The unit goes back to on-load operation.
3.7 Lubricant system
The screw compressor unit’s drive motor is fitted
with an automatic motor lubrication system.
Function of the motor lubrication system
The automatic motor lubrication system
guarantees permanent lubrication of the motor
bearings. When the drive motor is active, the
lubricators are supplied with voltage (24 VDC) via
the compressor controller. The grease quantity set
at the lubricator is distributed during several cycles
depending on the motor service life measured.
An empty grease cartridge or a fault on the
lubricator is indicated on the compressor control
by means of a message [Warning: Mot.lubr. sys]
(also refer to the operating instructions for the
compressor control GD Pilot TS).
Structure of the lubricators
(2x per drive motor)
1
2
3
4
[1] Socket for connection cable
[2] Lubricator drive
[3] Grease cartridge (not refillable)
[4] Support bracket