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

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The range adjustment is between 200°F and 228°F. At 97% of the shutdown
value the red alarm light will start flashing.
This is a warning indication of rising temperature.
A compressor that is experiencing a higher air temperature condition may have
the following symptoms.
1. It is experiencing poor to inadequate room ventilation.
2. The compressor room ambient may exceed 100°F.
3. The coolers may be fouled with dirt.
4. Inadequate lubrication within the airend may be causing high discharge
temperature.
However, if the temperature range proves to be acceptable, check the resis-
tance of the temperature sensor. Do this by disconnecting the cable wire from
terminals 20 and 21. Attach an OHM meter to the leads of the thermister.
Remember, the temperature must be held constant on the sensor in order to
measure a constant OHM value. The use of a thermometer may be an
advantage. Use the following table as a guide and match the OHM value to a
sensor temperature. This will verify if the temperature is good or bad.
Degree F° OHMS
50 20244
60 15475
70 11934
80 9282
90 7277
100 5748
110 4573
120 3663
130 2955
140 2400
150 1962
160 1614
170 1335
180 1110
190 928
200 780
210 658
220 558
230 476
240 407
MESSAGE -04- HIGH DISCHARGE AIR PRESSURE
When the-04-fault exists, the controller reacts to this problem by sensing the
pressure via the pressure sensor. Should this value exceed what is set into the
controller, it will shut down. Upon shutdown, the first thing to do is check the
value in the display window.
-7- -8-
If this is functioning properly, then check the functioning of the main starter coils.
This can be done by disconnecting the wires to the coil and applying 115 volts
to the coil from a near by wall outlet.
Before proceeding be sure to remove the 115 volts applied to the starter coil for
safety.
If these 2 prove to be OK, check for continuity between terminal #19 on the
starter interface board and the starter coil connection. Also check for continuity
between the opposite coil connection and terminal #8 on the starter interface
board. If these check out OK, check for continuity between #8 on the interface
board and pin 1 on the 115 volt connector. This is the white connector on the
right side of the board and pin 1 is the top most pin. Also, check for continuity
between terminal #19 on the interface board and the bottom most pin on the
white connector.
If there is no continuity between the terminals and the pins, change the starter
interface board. If there is continuity here, change the Intellisys controller.
MESSAGE -02- MOTOR OVERLOAD
If the display shows an -02- check the motor over-load for proper operation.
Remember to remove all electrical power from the compressor, lock and tag the
disconnect switch.
The overload contact circuit can be checked by removing the wiring each side
of the contact. Attach a continuity meter across the contact. Remove a heater
element and mechanically trip the internal mechanism to open the overload
contact.
If the contact is functioning properly check for continuity between terminals 30
and 31 on the starter interface board and the connections on the motor overload.
If we have continuity, proceed to the next test. Check for continuity of terminal
31 to any of the ground connections or the same terminal strip like 20 or 27. If
this proves OK, remove the 5 volt cable which is the cable on the left, the black
plug, and check for continuity between 31 and either of the bottom 2 most pins
on the connector.
Also check for continuity between terminal 30 and pin #7 on the right side of the
black connector.
If all continuity checks prove OK, and the overload checks OK, then change the
Intellisys controller.
MESSAGE -03- HIGH DISCHARGE AIR TEMPERATURE
If the display shows an-03-fault, this occurs when the temperature sensed by the
thermistor in the discharge air exceeds the value programmed into the Intellisys
controller.
First, check the value of the shutdown by pressing the display-select for
discharge air temperature. Insure this limit is in the correct range by pressing
the set button twice to clear the-03-fault, then continue pressing set until the
discharge air temperature is displayed.