7-18
62-11039
Alarm
NO.
Steps
ALARM / CAUSE
CORRECTIVE ACTION
27
HIGH SUCTION PRESSURE
•
TRIGGER ON: The refrigeration system is running and the suction pressure has been greater than
98 PSIG (6.7 Bars) for more than 10 minutes
•
UNIT CONTROL: Engine operation: alarm only or (if configured for shutdown) engine and unit shutdown
and alarm Standby operation: alarm only or (if configured for shutdown) refrigeration system shutdown
and alarm. Standby operation: alarm only or (if configured for shutdown) refrigeration system shutdown
and alarm with PSCON still energized.
•
RESET CONDITION: Auto reset when suction pressure is less than 75 PSIG (5.1 Bars) for 5 minutes and
configured for Alarm Only, or Auto Reset after 15 minutes if configured as a Shutdown Alarm 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 System Pressures
a. Install Manifold Test Set and check and
compare compressor discharge &
suction pressures with those shown on
the microprocessor controller.
Suction pressure must be above 3 PSIG (0.2 Bar)
Suction & Discharge Pressures must have the same
reading on gauges & on micro display.
NOTE: Microprocessor suction pressure reading has
a maximum value of 100 psig (7.5 bar)
2.
Check For Refrigerant Overcharge
a. Check refrigerant level in the receiver
tank.
Level must be between upper & lower sight glasses with a
box temperature of 35
°
F (1.0C) or lower
3.
Perform Pre--trip Check
a. Run pre--trip & check for alarms
Any active alarms must be corrected and cleared before
proceeding.
4.
Check EVXV
a. Check wiring and connections to
EVXV.
No physical damage to harness. No damage or corroded
pins. Connector tight on valve.
b. Check EVXV Superheat.
See Section 8.17
5.
Check Compressor.
a. Perform Pump--Down Test.
See Section 8.10.1
Must pump down to 5 PSI and hold for minimum of 1
minute.
b. Cover condenser and build--up
discharge pressure.
Must be able to pump up to 400 PSI.
c. Disassemble and inspect compressor
valve plates, reeds, pistons, etc.
Must be intact, clean, and in good working order.
Содержание VECTOR 1800 MT
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Страница 2: ...OPERATION SERVICE MANUAL for VECTOR 1800 MT Trailer Multi Temp Refrigeration Units ...
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Страница 20: ...1 6 62 11039 62 03958 00 Heat Warning 62 03957 01 High Voltage 62 60280 00 Standby Safety ...
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Страница 310: ...10 8 62 11039 BASED ON ENGINEERING SCHEMATIC 62 60926 REV G NEXT SHT ...
Страница 311: ...10 9 62 11039 FROM PREVIOUS SHT ...