Carrier Container Refrigeration Unit 69NT40-511-13

Evacuate the unit as per section 6.5

Open the manual liquid line valve

Inspect for moisture in system after unit is in operation

Turn power OFF and remove power plug

Remove screws securing the panel covering the evaporator section

Disconnect the defrost heater wiring

Disconnect the sensor from the coil

Handling of Controller/DataCORDER

Ensure all safety precautions are followed

Obtain a grounding wrist strap and a static dissipation mat

Disconnect and secure power to the unit

Place strap on wrist and attach the ground to an unpainted metal area on the refrigeration unit frame

Carefully remove the Controller/DataCORDER and place it on the static mat

Is the refrigeration unit service completed?

Re-install the module into the refrigeration unit after service work

Removing and Installing the Controller/DataCORDER Module

Disconnect leads by unplugging the connector.

Remove snap cap or locknut and lift off coil.

Verify coil type, voltage and frequency of old and new coil.

Replacing Valve Internal Parts -- Alco

Remove enclosing tube collar using installation/removal tool.

Check plunger for restriction due to:

Turn unit OFF and disconnect power supply

Refer to section 6.27 for removal of the Controller module

Sensor Identification and Measurement

Identify the sensor to be checked

Measure the ohms resistance using the plug connector marked 'EC'

Record the ohms resistance readings as per Table 6-1