Carrier 69NT40-541-500 Operation And Service Manual page 17

Before disassembly of any external compressor component make sure to relieve possible
internal pressure by loosening the bolts and tapping the component with a soft hammer to
break the seal.
Do not remove wire harnesses from controller unless you are grounded to the unit frame with a
static safe wrist strap.
Unplug all controller wire harness connectors before performing arc welding on any part of the
container.
Pre-trip inspection should not be performed with critical temperature cargoes in the container.
When Pre-Trip key is pressed, dehumidification and bulb mode will be deactivated. At the com-
pletion of Pre-Trip activity, dehumidification and bulb mode must be reactivated.
When a failure occurs during automatic testing, the unit will suspend operation awaiting oper-
ator intervention.
When Pre-Trip test Auto 2 runs to completion without being interrupted, the unit will terminate
pre-trip and display "Auto 2" "end." The unit will suspend operation until the user depresses
the ENTER key!
The unit will remain in the full cooling mode as long as the emergency bypass switch is in the
BYPASS position and the MODE SWITCH is in the FULL COOL position. If the cargo may be
damaged by low temperatures, the operator must monitor container temperature and manually
cycle operation as required to maintain temperature within required limits.
To prevent trapping liquid refrigerant in the manifold gauge set, be sure set is brought to suc-
tion pressure before disconnecting.
WARNING
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CAUTION
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CAUTION
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CAUTION
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CAUTION
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CAUTION
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CAUTION
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CAUTION
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CAUTION
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