Section 3 - Initial Setup; A - Preparation For Start-Up; B - First Start-Up; C - Delivery Pressure Adjustment - Chicago Pneumatic QRS 20 Instruction Manual

Section 3 - Initial setup

A - Preparation for start-up

Before starting up the unit for the first time, the operator must be
familiar with the different parts of the machine. The main parts
which should be examined are indicated in the diagrams.
IMPORTANT
Before start up, make sure that transport red pads have been
effectively removed.
WARNING
Please make sure the electrical mains are disconnected before any
maintenance or adjustment on the unit in order to avoid any
automatic restart.
Before start-up, check the following points :
1 - Make sure that the unit is properly earthed.
2 - Check the oil level in the tank.
NOTE : the tank has been filled with suitable oil in the
factory. See Section 6-A for the quality of oil to be used or
for oil renewal conditions.
3 - Make sure the oil change valve is properly closed.
4 - Check/re-tighten all power connections.
ATTENTION
The oil filler cap, the oil change valve and plugs must always
remain closed during operation and never be opened before the
system has been completely blown off to atmospheric pressure.

B - First start-up

Check the voltage between the three phases before using the unit
for the first time.
Check the direction of rotation (following the arrow on the pulley-
belt support (item. 1 - Fig. 3)) by pressing the "Start" button,
followed immediately by the emergency stop. If it does not spin
in the right direction reverse two mains cables. When it rotates in
the correct direction, the oil level (Fig.10) should drop after 4 or
5 seconds of operation.
Fig. 3
Chicago Pneumatic Compressors
62 305 454 65

C - Delivery pressure adjustment

The unit is adjusted in the factory for a MAXIMUM pressure (for
the maximum output from the outlet of the central unit) of 100,
125, 150 or 175 PSI depending on the model. To adjust the load
pressure setting to a lower value, refer to the manual of the
electronic controller.
D - Adjustment for in parallel operation
If the CP Compressors has to operate in parallel with other CP
Compressors, or similar compressors, the discharge pipes can be
connected together.
If the CP Compressors has to operate in parallel with one or several
alternative compressors, an air tank common to the reciprocating
compressors is essential. The impulses emitted by the reciprocating
compressors would seriously damage the non-return valve, the CP
Compressors separator element and disturb system control. When
the rotary compressor operates in parallel with an alternative
compressor, the adjustments on the latter will have to be adjusted
so that the rotary compressor carries the basic load. This will result
in more economic operation.

E - Safety

The oil used for cooling the machine is an inflamable liquid under
the effect of strong heat. In case of fire in the machine, it is essential
to respect the regulatory measures on the compressor. The type of
fire in a compressor is defined as "class B" and in presence of a live
electrical conductor, it is recommended to use a CO
functioning by "smothering" (starvation of oxygen) while observing
the user instructions applicable to the model.
1
1 - Press the ON button, the motor starts up.
2 - Leave it running for a few minutes with the discharge valve
slightly open to observe the compressor under load. Ensure
that there are no leaks. Reblock the connectors if necessary.
3. Press the STOP button. The motor stops and the unit is
automatically blown off at atmospheric pressure.
with other compressors
extinguisher
2
01/2008
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