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62-11039
7-11
Alarm
NO.
Steps
ALARM / CAUSE
CORRECTIVE ACTION
17
HIGH COMP DISCHARGE TEMP
•
TRIGGER–ON: Discharge sensor alarm not active AND:
Ambient temp below 120
°
F (48.9
°
C) and discharge temp was between 310
°
F -- 349
°
F
(154.4
°
C -- 176.7
°
C) for 3 minutes, or
Ambient temp above 120
°
F (48.9
°
C) and discharge temp was between 340
°
F -- 349
°
F
(171.1
°
C -- 176.7
°
C) for 3 minutes, or
Discharge temp ever reaches 350
°
F (176 7
°
C)
Discharge temp ever reaches 350
°
F (176.7
°
C)
•
UNIT CONTROL: Engine operation: engine and unit shutdown and alarm. Standby operation:
refrigeration system shutdown and alarm with PSCON still energized.
•
RESET CONDITION: Auto Reset after 15 minutes with Ambient temp below 120
°
F (48.9
°
C) the
discharge temp falls below 300
°
F (148.8
°
C), or Auto Reset after 15 minutes with Ambient temp above
120
°
F (48.9
°
C) the discharge temp falls below 330
°
F (165.4
°
C), 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 For Bad Compressor Discharge Temperature Sensor
a. Check for Alarm 125
Alarm conditions must be corrected and the alarm cleared
to continue
2.
Check Refrigerant Charge
a. Check for undercharged system
Level must be above lower sight glass
3.
Check Airflow Through Condenser Coil
a. Inspect condenser / radiator fins
Fins must be straight. 90% or more of the coil surface
must be undamaged. No “dead” air spaces. Condenser /
Radiator coil must be clean.
4.
Check CSMV
a. Check compressor suction modulation
valve
See procedure “How To Check CSMV,” Section 8.23
5.
Check System Pressures
a. Install Manifold Test Set and check
and compare compressor discharge
& suction pressures with those shown
on the microprocessor controller.
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)
6.
Perform Pretrip Check
a. Run Pretrip & check for alarms
Any active alarms must be corrected and cleared before
proceeding.
7.
Check Compressor Reed Valves & Gaskets
a. Remove compressor heads & inspect
condition of all reeds & gaskets
Must be in good condition.
8.
Check Expansion Valve (EVXV)
a. Check superheat of valve
Refer to Section 2.12 See 8.17
9.
Check System For Non-Condensables
a. Check refrigeration system for
non-condensable gas(es)
No non–condensable gas(es) may be present.
Summary of Contents for VECTOR 1800 MT
Page 1: ......
Page 2: ...OPERATION SERVICE MANUAL for VECTOR 1800 MT Trailer Multi Temp Refrigeration Units ...
Page 19: ...1 5 62 11039 1 3 SAFETY DECALS ...
Page 20: ...1 6 62 11039 62 03958 00 Heat Warning 62 03957 01 High Voltage 62 60280 00 Standby Safety ...
Page 21: ...1 7 62 11039 ...
Page 303: ...10 1 62 11039 ...
Page 310: ...10 8 62 11039 BASED ON ENGINEERING SCHEMATIC 62 60926 REV G NEXT SHT ...
Page 311: ...10 9 62 11039 FROM PREVIOUS SHT ...