User manual CARRIER T340 REV B

[. . . ] Container Refrigeration 69NT40-561-001 to 199 Container Refrigeration Units OPERATION AND SERVICE for T--340 Rev B OPERATION AND SERVICE MANUAL CONTAINER REFRIGERATION UNIT Models 69NT40-561-001 to 199 TABLE OF CONTENTS PARAGRAPH NUMBER Page GENERAL SAFETY NOTICES . Safety--1 SPECIFIC WARNING AND CAUTION STATEMENTS . 1--1 1. 4. 6 Communications Interface Module . 1--2 1. 4. 16 Upper Air (Fresh Air Make Up) . [. . . ] The unit will be required to minimize control temperature error (supply temperature minus set point) until the timer expires. The control temperature will be sampled at least once each minute starting at the beginning of P8--2. Pass/Fail Criteria: If the average recorded temperature is within +/-- 1. 0_C (1. 8_F) of set point, the test passes. If the average temperature is outside of the tolerance range or if the DataCORDER supply temperature probe is invalid, the test fails and and the control probe temperature will be recorded as --50. 0_C. P8--2 will auto--repeat by starting P8--0 over. Setup: The defrost temperature sensor (DTS) reading will be displayed on the left display. The right display will show the supply air temperature. The unit will run FULL COOL for 30 minutes maximum until the DTT is considered closed. Once the DTT is considered closed, the unit simulates defrost by running the heaters for up to two hours, or until the DTT is considered open. Pass/Fail Criteria: The test fails if: the DTT is not considered closed after the 30 minutes of full cooling, HTT opens when DTT is considered closed or if return air temperature rises above 49_C (120_F). Setup: If the container temperature is below 7. 2_C (45_F), the set point is changed to 7. 2_C and a 180--minute timer is started. The control will then be placed in the equivalent of normal heating. If the container temperature is above 7. 2_C at the start of the test, then the test proceeds immediately to test 10--1. During this test, the control temperature will be shown in the right display. Pass/Fail Criteria: The test fails if the 180--minute timer expires before the control temperate reaches set point --0. 3_C (0. 17_F). If the test fails it will not auto-repeat. Once the control temperature reaches set point, the test proceeds to test 10--1 Requirements: Control temperature must be at least 7. 2_C (45_F) Setup: The set point is changed to --17. 8_C (0_F). The system will then attempt to pull down the control temperature to set point using normal frozen mode cooling. During this test, the control temperate will be shown on the right display. Pass/Fail Criteria: If the control temperature does not reach set point --0. 3_C (0. 17_F) before the 180--minute timer expires the test fails and will auto--repeat by starting P10--0 over. Requirements: Test P10--1 must pass for this test to execute. This test is skipped if the DataCORDER is not configured or not available. [. . . ] Locate, wires CB21/CIA3, CB22/CIA5 and CB23/CIA7 that have been tied back in the wire harness. Remove the protective heat shrink from the ends of the wires. d. Attach three wires CB21/CIA3, CB22/CIA5 and CB23/CIA7 to the CIM at connection CIA. g. Locate connectors CIA and CIB, remove plugs if required, and attach to the module. [. . . ]