Thermo King Spectrum DE 30-2, Руководство пользователя, Страница: 40 / 140

Operating Instructions
40
Examples of Products Normally Requiring
Continuous Run Operation for Air Flow
• Fresh fruits and vegetables, especially
asparagus, bananas, broccoli, carrots, citrus,
green peas, lettuce, peaches, spinach,
strawberries, sweet corn, etc.
• Non-processed meat products (unless
pre-cooled to recommended temperature)
• Fresh flowers and foliage
These listings are not all inclusive. Consult your
grower or shipper if you have any questions about
the operating mode selection of your type of load.
Restarting Unit
This procedure is used when starting units that
have been shut off for short periods of time. A
unit that has been shut off for a long time should
be started and put through a full pretrip when first
started.
1. Place the Zone 1 On/Off switch in the On
position.
2. After a 10 second delay, the unit should
preheat and start automatically.
NOTE: When the CYCLE-SENTRY icon is
active, the unit may not start if: the
compartment temperatures are near their
respective setpoints, the engine is warm, and
the battery is fully charged.
3. Place the Zone 2 On/Off switch in the On
position to operate the Zone 2 evaporator.
4. Place the Zone 3 On/Off switch in the On
position to operate the Zone 3 evaporator.
After Start Inspection
After the unit is running, the following items can
be quickly checked to confirm that the unit is
running properly.
1. Oil Pressure: Check the engine oil pressure in
high speed by pressing the
O
IL
P
RESS
key. The
oil pressure should read OK, not Low.
2. Ammeter: Check the ammeter reading by
pressing the A
MPS
key. The ammeter should
indicate normal battery charging current. It
may be fairly high right after starting the unit,
but should taper off as the battery is recharged.
3. Compressor Oil: The compressor oil level
should be visible in the sight glass.
4. Refrigerant: Check the refrigerant charge. See
“Refrigerant Charge” in the Refrigeration
Maintenance chapter.
5. Pre-cooling: Make sure that the setpoints are
at the desired temperatures and allow the unit
to run for a minimum of 1/2 hour (longer if
possible) before loading the trailer.
This provides a good test of the refrigeration
system while removing residual heat and the
moisture from the trailer interior to prepare it
for a refrigerated load.
6. Defrost: When the unit has finished
pre-cooling the trailer interior, manually
initiate defrost cycles in each compartment.
This will remove the frost that builds up while
running the unit to pre-cool the trailer.
To manually initiate a Defrost cycle, press the
S
ELECT
key until the [dEF] screen appears,
then press the E
NTER
key. This will initiate a
Defrost cycle in the compartment for the
active Zone icon. Refer to the appropriate
Microprocessor Diagnosis Manual for more
information about Manual Defrost.
The Defrost cycle should end automatically.
NOTE: An evaporator will not defrost unless
its coil temperature is below 45 F (7 C).
Loading Procedure
1. Make sure the unit is Off before opening the
doors to minimize frost accumulation on the
evaporator coil and heat gain in the trailer.
(Unit may be running when loading the trailer
from a warehouse with door seals).
2. Spot check and record load temperature while
loading. Especially note any off-temperature
product.