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

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LOOSE CABLE IN TEMPERATURE SENSOR
Please be advised that we have determined a potential field failure may exist in
the temperature sensor.
Units affected are:
SSR 10 - 40 Horsepower
SSR 50 - 200 Horsepower
Visual inspection of the thermistor (sensor) cable will reveal that the shielded
cable is loose within the body of the thermistor caused by the potting material
(epoxy) that does not bond to the cable.
Moving the cable may also reveal excessive play between the cable and the
potting material at the end of the thermistor body.
This allows the wires to break or short out within the thermistor body.
On units built after July 13, 1990, the problem has been corrected. Some
temperature sensors supplied before this date may be suspect.
Replacement cables are available from Davidson.
Following normal procedures for returned materials, please return the defective
cables to Davidson Reliability Engineering, to the attention of Jeff Meadows.
Order replacement cables as required using the same part number supplied in
the manuals.
Part number 10-40U Intellisys temperature sensor 39538079.
50-200 Intellisys temperature sensor 39541677.
BEFORE STARTING PROCEDURE CHANGE
Since September 1, 1990 on all SSR 10-40 horsepower units, the BEFORE
STARTING procedure changed. These units are equipped with the latest E
Prom Revision 9.0.
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The revised sequence is as follows:
Close the main disconnect.
The display window will show 0. Power and unload indicator lights will be on.
Push “Unloaded Stop” for lamp check. All lights will be on and “8888” will be
displayed in the window until the “Unloaded Stop” button is released.
After the lamp test has been completed, the unit will display 0. Ready to Start.
Units equipped with the Revision 9.0 E Prom will not show 8888 in the display
window when the main power disconnect is closed.
Should your customer order a replacement Intellisys controller, he will receive
a similar instruction sheet and a “Notice” Instruction decal, part number
39808316 that is to be placed over the existing decal already on the unit. This
existing part number is 39788518.
Over a period of time, it may be possible that an 0 Ready to Start controller will
require a replacement and the unit will not require a decal replacement.
10-40 HORSEPOWER
INTELLISYS EQUIPPED COMPRESSORS
EMERGENCY STOP BUTTON
It has been learned that the emergency stop button contacts are susceptible to
low vibration or shock and can cause nuisance shutdowns on some units.
Two contact blocks are mounted on the back of the button. One set of contacts
carries 110 volts AC. If this contact should vibrate open, the compressor will
shutdown on all 8888’s. The other set of contacts carries 5 volts DC and if
opened will shut the units down on 01 starter fault.
To correct this problem a new improved emergency stop button has been
developed and is available from I-R stock, P/N 39549159. The button can be
replaced on any controller which has a removable back cover. These controllers
were available on units shipped after November 30, 1989.
Any unit manufactured prior to November 30, 1989 that may require a new E-
stop button will require a new or remanufactured controller.
The new E-stop button will be provided on both of the controllers.
Remanufactured Controller P/N 39801204
New Controller P/N 39786470
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