Carrier TRANSICOLD 69NT20-274, Операция и обслуживание, Страница: 37 / 182

2-1
SECTION 2
OPERATION
2.1 PRE-TRIP INSPECTION (Before Starting)
WARNING
Beware Of Unannounced Starting Of The
Evaporator And Condenser Fans.
a. If container is empty, check inside for the following:
1. Check channels or “T” bars on floor for
cleanliness. Channels must be free of debris for proper air
circulation.
2. Check container panels, insulation and door seals
for damage. Effect permanent or temporary repairs.
3. Visually check evaporator fan motor mounting
bolts for proper securement.
4. Check for dirt or grease on evaporator fan or fan
deck and clean if necessary.
5. Check evaporator coil for cleanliness or
obstructions. Wash with fresh water. (Refer to section 4.13)
6. Check defrost drain pans and drain lines for
obstructions and clear if necessary. Wash with fresh water.
7. Check panels on refrigeration unit for loose
bolts and condition of panels. Make sure T.I.R. devices
are in place on access panels.
b. Check condenser coil for cleanliness. Wash with fresh
water. (Refer to section 4.16)
c. Check position of fresh air makeup vent cover.
Operator must determine if fresh air makeup vent cover
is to be opened or closed.
d. Open Partlow recording thermometer (if so
equipped) door and do the following:
1. Manually wind clock on recording thermometer
(key is located in a clip.) KEY MUST STAY WITH THE
THERMOMETER
2. Lift stylus (pen) by pushing in the stylus lifter and
rotating the lifter clockwise (raising stylus at same time)
until lifter locks in position.
3. Install new chart on recording thermometer
making sure chart is under the four corner tabs. Release
stylus lifter by pushing down and rotating lifter
counterclockwise until stylus lifter locks in position and
stylus has made contact with chart. Then close door.
e. Open Saginomiya recording thermometer (if so
equipped) door and do the following:
1. Check Chart drive battery condition. (Refer to
section 4.19)
2. Lift stylus (pen) by pushing in the stylus lifter and
rotating the lifter clockwise (raising stylus at same time)
until lifter locks in position.
3. Install new chart on recording thermometer
making sure chart is under the four corner tabs. Release
stylus lifter by pushing down and rotating lifter
counterclockwise until stylus lifter locks in position and
stylus has made contact with chart. Then close door.
f. Open control box door. Check for loose electrical
connections or hardware.
g. Check color of moisture-liquid indicator.
h. Check oil level in compressor sight glass.
i.
Start refrigeration unit. (Refer to section 2.3.)
2.2 STARTING AND STOPPING
INSTRUCTIONS
CAUTION
Make sure that the unit circuit breaker(s) (CB)
and the start-stop switch are in the OFF position
before connecting to any electrical power source.
a. Starting the Unit
1. Refer to Pre-Trip Inspection, section 2.1.
2. Check power source for proper voltage. Connect
unit power plug and turn main power ON.
CAUTION
On units with condenser fan switch (CFS), CFS
must be in position “ 1 ” before starting unit unless
cooling water is being supplied to water cooled
condenser at a rate of 11 --- 26 lpm (3 --- 7 gpm).
3. Turn refrigeration unit circuit breaker(s), and
the start-stop switch ON (position “1”).
4. Units equipped with a DataCORDER:
Trip start date is activated by simultaneously holding
both Trip Start and Hours Since Last Trip Start keys.
5. Refer to section 2.3 after unit is running.
b. Stopping the Unit
Turn the start-stop switch to position “0” (OFF
position).
2.3 AFTER STARTING INSPECTION
a. Check rotation of condenser and evaporator fans.
b. Check compressor oil level.
c. Start microprocessor Pre-Trip Inspection. (Refer to
section 1.13.6)
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