Ingersoll-Rand Intellisys SSR 10-40, Руководство для обслуживающего персонала

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TO CORRECT THE PROBLEM:
1. Loosen nut A. Pull slightly on cable B. See photo C below.
If you have a unit that is showing symptons as described, contact the
customer service department in Davidson. It may be necessary to repair
or replace the exisiting cable.
This problem has been corrected on new units with the addition of a heat
shrink shield at the end of the transducer cable to prevent contact.
A B
C
IMPORTANT NOTICE
AUTO CONTROL SELECTOR
10 - 40 Horsepower
ACS and how it is activated on the Intellisys controller.
The original Intellisys has ACS (Automatic Control Selector), however, it was
not printed on the face/membrane of the controller. The most recent
controller has modulate/ACS printed on the face.
The operation of ACS is as follows: Original Controller. While running in the ON/
OFF LINE MODE , and the machine cycles three times in three minutes, the
controller will automatically shift to modulation. While running in the modulate
mode and the machine runs unloaded for three minutes the controller will shift
back to ON/OFF LINE. The green LED lights, will follow these shifts.
The most recent controller activates the ACS mode differently. If this controller
is manually placed in the ON/OFF Line Mode, it will stay in this mode and not shift
automatically to modulate.
The controller must be placed in the modulate / ACS Mode position in order for
the unit to modulate and shift into ON/OFF line if demand dictates. Unlike the
original controller, the green LED lights will not shift position.
INTELLISYS CODE-12-SHUTDOWNS
SSR 10-40 Horsepower
Code 12 is activated by the pressure transducer which must sense 10 psig sump
pressure within three seconds after depressing the start button.
If 10 psig sump pressure is not developed within the three second interval, the
controller thinks the compressor is running in reverse rotation and will shut the
unit down and display CODE 12.
If any positive pressure is displayed on the controller, the rotation is correct.
Any leakage in the tubing, fittings or line/sump solenoid valve could prevent the
true sump pressure from reaching the transducer within the 3 second time period
and should be checked prior to changing any components.
If “0” psig sump pressure is displayed during startup, check terminals 5 and 16
on the Interface Board to confirm that 115 volts is being supplied to the (10SV)
line/sump solenoid. A defective (10SV) would not shift to sump during startup,
which would also show “0” psig pressure.
TRANSDUCER CALIBRATION
SSR (10-40 Horsepower With Intellisys Controller)
The Pressure Transducer should be calibrated at Start-Up, and anytime a
component associated with the transducer or Intellisys system is replaced.
Calibration of the transducer is accomplished as follows:
1. All pressure must be removed from the pressure transducer.
2. The Controller must be in the ready to start mode. (“0” in the Display
Window) .
3. Press the Step Up and Down Arrows at the same time, (ONCE). When
the arrows are pressed, the Green LED light on the Display Select will
shift to Sump and then return to Discharge Air Pressure.
4. This procedure can be done anytime you suspect an error in the pressure
Transducer circuit.
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