Carrier VECTOR 6500, Руководство по эксплуатации и обслуживанию

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Alarm
NO.
Steps Alarm/Cause Corrective Action
39 CHECK ENGINE RPM
•
TRIGGER–ON: In Engine Operation and Alarm 130 is not active and engine speed is less than
1250 rpm for 2 seconds or greater than 2100 rpm for 5 minutes or engine speed drops to less than
1200 rpm for 3 seconds after the engine speed has been greater than 1250 rpm.
•
UNIT CONTROL: Engine Operation: alarm only or (if configured for shutdown) engine and unit
shutdown and alarm.
Standby Operation: this alarm will not activate in standby Operation.
•
RESET CONDITION: Auto Reset if engine rpm is greater than 1150 and less than 2000 for 5
minutes or after 15 minutes if the engine has been shutdown or change unit to standby Operation
or alarm may be manually reset via keypad or by turning the unit off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, the active
alarm should clear itself (see reset condition above). Operate the unit through the appropriate modes to see if
any active alarm occurs. Continue with the steps below as necessary.
1 Check Model Number
Verify that the model number on the
nameplate matches the model
number shown in the microprocessor
Unit Data.
Enter the correct number in Configurations. (Refer to
Section 5.2.1.)
2 Check For Flash Code On Engine Speed Control Unit (ENSCU)
Check for flash codes on the ENSCU. Refer to ENSCU LED Fault Chart, Section 9.5, must
be no LED alarm codes occurring to continue.
3 Check Fuel/Speed Actuator
Check plunger on fuel/speed actuator. Must move in and out freely.
Spring tension must hold rod firmly extended and in
place.
4 Check Fuel System
a. Check for Alarm 1. Fill tank as needed.
b. Check fuel flow. Unrestricted fuel flow through system.
Fuel not gelled.
c. Check fuel system prime. No air in fuel system.
5 Check Engine Air–Intake System
a. Check air cleaner indicator. Flag must not be visible.
b. Inspect air intake system. Hoses & tubes in good condition.
No kinks or restrictions.
6 Force Low Speed Operation
a. Using Functional Parameters, set
the High Speed Delay for at least 10
minutes so the unit starts in low speed.
Unit will run in low speed. RPM must be within range
shown above for each specific model. Refer to
ENSCU LED Fault Chart, Section 9.5, must be no
LED alarm codes occurring to continue.
b. Check operation of Speed Relay
LED.
LED 27 must be OFF when the microprocessor is
calling for Low Speed.
Additional steps on the next page.