Refrigeration Maintenance
129
9. Observe the micron gauge reading. The
vacuum rise should not exceed 2000 microns
in 5 minutes.
10. If the rise is above 2000 microns in 5 minutes,
check all hoses and connections for leaks.
Hoses with moisture present will require
additional evacuation time to achieve
satisfactory results.
NOTE: Dirty vacuum pump oil or a defective
vacuum pump will prevent a low micron
reading. Hoses and fittings can be isolated
individually to identify leaks.
Using The Evacuation Mode Menu
Evacuation Mode opens the system by energizing
all normally closed refrigeration valves. This
allows the entire refrigeration system to be
evacuated.
Evacuation mode is only used with the unit off.
Since a number of refrigeration valves must be
energized for an extended period of time, the
operator is prompted to connect a battery charger
to the unit battery. This maintains the unit battery
in a charged condition and insures ample voltage
to hold all refrigeration valves in the open
position during the evacuation process.
Start at the Standard Display and press the MENU
key.
Figure 153: Press Menu Key
The Maintenance Menu is accessed from the first
Operator Menu screen that appears; either the
Language Display or the Alarms Display. The
Alarms Display is shown here. Press and hold
both the unlabeled soft key and the Exit key for 5
seconds.
Figure 154: Press and Hold Exit and Unlabeled Key
The Maintenance Hourmeter Menu will appear.
Press the NEXT key as required to show the
Evacuation Mode
Menu. When the Evacuation Mode Menu is
shown press the SELECT key.
Figure 155: Evacuation Mode Menu
The display will indicate that the Evacuation
Mode is being programmed.
Figure 156: Programming
The operator is prompted to connect a battery
charger capable of 20 amps to the unit battery.
This maintains the unit battery in a charged
condition and insures ample voltage to hold all
refrigeration valves in the open position during
the evacuation process.
Figure 157: Connect Battery
WARNING: Do not set battery charger to
the “crank” or “start” position, otherwise
the HMI display will be damaged.
CAUTION: Disconnect the drain heaters
from the terminal strips in the remote
evaporators while the unit is connected to
a battery charger and being evacuated. It
is possible that the battery charger will
supply voltage that is high enough to
damage the drain heaters.
Summary of Contents for SPECTRUM TS 30 SR NAD
Page 4: ...4 ...
Page 10: ...Table of Contents 10 ...
Page 20: ...Safety Precautions 20 ...
Page 51: ...Unit Description 51 Figure 19 Front View Figure 20 Back View AJA1350 AJA1500 ...
Page 52: ...Unit Description 52 1 On Off Switch Figure 21 Side View 1 ...
Page 60: ...Unit Description 60 ...
Page 80: ...SPECTRUM TS Operation 80 ...
Page 90: ...Electrical Maintenance 90 ...
Page 100: ...Engine Maintenance 100 Figure 130 Early TK 3 95 Fuel and Oil System Components ...
Page 102: ...Engine Maintenance 102 Figure 131 Late TK 3 95 Fuel and Oil System Components ...
Page 104: ...Engine Maintenance 104 Figure 132 TK376 Fuel and Oil System Components ...
Page 136: ...Refrigeration Maintenance 136 ...
Page 156: ...Hilliard Clutch Maintenance 156 ...
Page 158: ...Structural Maintenance 158 ...
Page 168: ...Remote Evaporator Specifications 168 ...
Page 170: ...Remote Evaporator Maintenance Inspection Schedule 170 ...
Page 176: ...Remote Evaporator Electrical Maintenance 176 ...
Page 180: ...Remote Evaporator Refrigeration Service Operations 180 ...
Page 182: ...Remote Evaporator Structural Maintenance 182 ...
Page 184: ...Remote Evaporator System Diagnosis 184 ...
Page 188: ...Wiring and Schematic Diagrams Index 188 ...
Page 189: ...189 Wiring Diagram Page 1 of 4 ...
Page 190: ...190 Wiring Diagram Page 2 of 4 ...
Page 191: ...191 Wiring Diagram Page 3 of 4 ...
Page 192: ...192 Wiring Diagram Page 4 of 4 ...
Page 193: ...193 Schematic Diagram Page 1 of 3 ...
Page 194: ...194 Schematic Diagram Page 2 of 3 ...
Page 195: ...195 Schematic Diagram Page 3 of 3 ...
Page 196: ...196 ...