Thermo King 098203, Maintenance Manual

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Operating Instructions
55
Unit On/Off Key
• ON. Unit will operate on Cool or Heat depending on the controller setpoint
temperature and the container air temperature.
• OFF. The unit will not operate.
Sequence Of Operation
Unit Start-up
Connect unit to 460 Volt shore power or genset.
Turn circuit breaker on at post to apply power to unit.
• Display will show date and software revision
Press and Hold ON/OFF key for 2 seconds
• Display shows RA, SA, SP
• PM 4000 Setup
• Power Module Init
• Power Module Phase test - Shows heater icon
• Power module Ready
• Stop Plant
Unit starts and shows CHILLED COOLING and shows mode of operation
.
NOTE: Random time delays during the initial unit start-up minimize peak current draw.
Initiating a Manual Defrost
Turn the
U
NIT
O
N
. Allow Unit to start and stabilize.
Complete the following steps:
1. Press the
D
EFROST
Special Function key.
• If the unit operating conditions allow a manual
defrost (e.g. evaporator coil temperature is less than
18 C [56 F]), the unit enters Defrost.
2. The defrost cycle automatically terminates and
returns the unit to normal operation.