Carrier TRANSICOLD VECTOR 8100, Руководство по эксплуатации и обслуживанию, Страница: 152 / 294

62-11785 7–14
00028 CHECK REFRIGERATION SYSTEM
• ACTIVATION: The refrigeration system is running and the discharge pressure is less than 5 psig (0.34
bar) higher than suction pressure for more than 30 seconds.
• UNIT CONTROL: Alarm only or (if configured for shutdown) refrigeration system shutdown and alarm
with PSCON still energized.
• RESET CONDITION: Auto reset when discharge pressure is more than 20 psig (1.36 bar) above the suc-
tion pressure when in alarm only, or auto reset after 30 minutes when shutdown is configured 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 (refer to reset condition above). Operate the unit through the appropriate modes to see
if any active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1. Verify Compressor Is Running - Check compressor Amp draw - CCON T1-T2, T1-T3, T2-T3. Check all
three voltage legs. Must be within voltage limits shown in Section 2.9 .
2. Perform Pretrip Check - Clear Active Alarm list, then run Pretrip & check for any new alarms. Any active
alarms must be corrected and cleared before proceeding.
3. Check System Pressures - Install manifold gauge set and check and compare compressor discharge &
suction pressures with those shown on the microprocessor display. Suction pressure must be above 3
psig (0.2 bar) Discharge pressure must be more than 5 psig (0.3 bar) higher than the suction pressure.
Suction & Discharge Pressures must have the same reading on gauges & on microprocessor display.
4. Check Compressor - Check compressor for excessive vibration or noise. Replace compressor, refer to
Section 8.6 .
00030 FAILED TO RUN MINIMUM TIME
• ACTIVATION: The unit has shutdown on an alarm 3 times without having run for at least 15 minutes
between each shutdown (not including door switch shutdowns).
• UNIT CONTROL: Refrigeration system shutdown and alarm with PSCON still energized.
• RESET CONDITION: Alarm may be manually reset using the display mounted keys 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, clear the
alarm(s). (Refer to Note 1 in
Notes Section.) Operate the unit through the appropriate modes to see if any active
alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1. Check For Alarms - Check for shutdown alarms. Alarm conditions must be corrected and the alarm(s)
cleared to continue.