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 . 1--2 i T-340 TABLE OF CONTENTS (Continued) PARAGRAPH NUMBER Page DESCRIPTION . 3--4 3. 3. 4 Perishable Set Point Temperature -- Standard Temperature Control Mode . 3--4 3. 3. 5 Perishable Set Point Temperature -- Economy Fan Operation Mode . [. . . ] Evaporator Fan Pass/Fail Criteria: Passes if change in current draw is within the range speciMotors On fied. Setup: The Low Speed Evaporator fan is turned off, a current draw test is done Low Speed after 10 seconds. Evaporator Fan Pass/Fail Criteria: Passes if change in current draw is within the range speciMotors Off fied. High Speed Evaporator Fan Motors On High Speed Evaporator Fan Motors Off Setup: The high speed evaporator fan is turned on, a current draw test is done after 60 seconds. Pass/Fail Criteria: Passes if change in current draw is within the range specified. Setup: The high speed evaporator fan is turned off, a current draw test is done after 10 seconds. Pass/Fail Criteria: Passes if change in current draw is within the range specified. P4--0 P4--1 3--27 T-340 Table 3- Controller Pre-7 -trip Test Codes (Sheet 2 of 4) Setup: The High Speed Evaporator Fan is turned on and run for eight minutes, with all other outputs de--energized. Pass/Fail Criteria: A temperature comparison is made between the return and supply probes. NOTE If this test fails, "P5--0" and "FAIL" will be displayed. If both Probe tests (this test and the PRIMARY/ SECONDARY) pass, the display will read "P5" "PASS. " Requirements: For units equipped with secondary supply probe only. Pass/Fail Criteria: The temperature difference between supply temperature sensor (STS) and supply recorder sensor (SRS) probe is compared. P5--1 Supply Probe Test NOTE If this test fails, "P5--1" and "FAIL" will be displayed. If both Probe tests (this and the SUPPLY/RETURN TEST) pass, because of the multiple tests, the display will read "P 5" "PASS. " Requirements: For units equipped with secondary return probe only. Pass/Fail Criteria: The temperature difference between return temperature sensor (RTS) and return temperature sensor (RRS) probe is compared. If this test fails, "P5--2" and "FAIL" will be displayed. If both Probe tests (this test and the SUPPLY/RETURN) pass, because of the multiple tests, the display will read "P 5, " "PASS. " 2. The results of Pre--trip tests 5--0, 5--1 and 5--2 will be used to activate or clear control probe alarms. Evaporator Fan Direction Test Primary . vs Secondary Evaporator Temperature Sensor Test Suction Pressure Transducer Test Suction (Evaporator) Pressure Transducer Test Requirements: Test P5--0 must pass before this test is run. Setup: While the evaporator is running on high speed, the temperature differential between supply temperature sensor (STS) and return temperature sensor (RTS) probes is measured, with and without heaters energized. Pass/Fail Criteria: Passes if differential of STS is 0. 25 degree C higher than RTS. Pass/Fail Criteria: Passes if secondary evaporator temperature sensor (ETS2) is within +/-- 0. 5 degree C of the primary evaporator temperature sensor (ETS1). Pass/Fail Criteria: Passes if suction pressure transducer (SPT) is within +/-- 0 psi of saturation pressure at current evaporator temperature. [. . . ] In order to protect the refrigeration unit from the highly corrosive sea atmosphere, or if the protective paint system is scratched or damaged, clean area to bare metal using a wire brush, emery paper or equivalent cleaning method. Immediately following cleaning, apply two-part epoxy paint to the area. Ensure that the unit power is off AND that the unit power plug is disconnected. If using factory provisioned wiring, remove the circuit breaker panel, with circuit breaker, from the control box. [. . . ]