User manual CARRIER 00DCG000004100

[. . . ] 3--6 3. 3. 9 Sequence of Operation -- Perishable Mode (Capacity Trim Heat) . 3--9 T-340 ii TABLE OF CONTENTS (Continued) PARAGRAPH NUMBER 3. 3. 19 Defrost Mode -- Sequence of Operation . iii Page 3--9 3--10 3--10 3--10 3--10 3--10 3--10 3--10 3--10 3--11 3--11 3--11 3--11 3--12 3--12 3--12 3--14 3--14 3--14 3--14 3--14 3--15 3--15 3--16 3--16 4-1 4--1 4--1 4--1 4--1 4--1 4--2 4--2 4--2 4--3 4--3 4--3 4--3 4--3 4--4 4--4 4--4 4--5 T-340 TABLE OF CONTENTS (Continued) PARAGRAPH NUMBER 4. 7 STARTING AND STOPPING INSTRUCTIONS . 5. 1 5. 2 5. 3 5. 4 5. 5 5. 6 5. 7 5. 8 5. 9 UNIT WILL NOT START OR STARTS THEN STOPS . [. . . ] "Auto3" menu includes P0, P1, P2, P3, P4, P5, P6, P7 and P8. All lights and display segments will be energized for five seconds at the start of the pre--trip. Since the unit cannot recognize lights and display failures, there are Pre--trip Initiated no test codes or results associated with this phase of pre--trip. Pass/Fail Criteria: Passes if current draw change is within the range specified. Pass/Fail Criteria: Passes if current draw change is within the range specified. Requirements: Water pressure switch or condenser fan switch input must be closed. Condenser Fan On Setup: Condenser fan is turned ON, a current draw test is done after 15 seconds. Pass/Fail Criteria: Passes if current draw change is within the range specified. Setup: Condenser fan is turned OFF, a current draw test is done after Condenser Fan Off 10 seconds. Pass/Fail Criteria: Passes if current draw change is within the range specified. Low Speed Requirements: The unit must be equipped with a low speed evaporator fan, as Evaporator Fans determined by the Evaporator Fan speed select configuration variable. Pass/Fail Criteria: Passes if suction pressure transducer (SPT) is within +/-- 0 psi of saturation pressure at current evaporator temperature. Also passes if suction pressure transducer (SPT) is within +/-- 1 psi of discharge pressure 6 hours after a power interruption. Pass/Fail Criteria: Passes if suction pressure transducer (SPT) is within +/-- 1. 5 psi of the evaporator pressure transducer (EPT). Test is skipped if controller is not configured for the humidity sensor and the voltage is less than 0. 20 volts. Pass/Fail Criteria: Passes if controller configuration has the humidity sensor installed. Fails if controller is not configured for humidity sensor and the voltage is greater than 0. 20 volts. Pass/Fail Criteria: Passes if voltage is greater than 0. 20 volts for the humidity sensor. Pass/Fail Criteria: Passes if the voltage for the humidity sensor is between 0. 66 volts and 4 volts. 3--28 P5--0 Supply/Return Probe Test P5--3 P5--7 P5--8 P5--9 Humidity Sensor Controller ConfigurP5--10 ation Verification Test Humidity Sensor P5--11 Installation Verification Test Humidity Sensor P5--12 Range Check Test T-340 Table 3- Controller Pre-7 -trip Test Codes (Sheet 3 of 4) If alarm 64 is activated any time during the first 45 second period of Step 1, the test fails. Alarm is activated if suction temperature is outside of the valid range of --60_C Suction (--76_F) to 150_C (302_F) any time during the first 45 second period of Step 1, P6--1 Thermistor Test the test fails. Discharge Pressure If alarm 65 is activated any time during the first 45 second period of Step 1, the P6--2 Sensor Test test fails. [. . . ] If the tip of the pen (item 4) is on the 0_C (32_F) chart ring the recorder is in calibration, proceed to step c. If the tip of the pen is NOT on the 0_C (32_F) chart ring, the operator must loosen the two screws on the bottom of the stylus arm to adjust the pen tip manually to the 0_C (32_F) chart ring. Press the calibration button and the pen will position itself to the correct temperature reading. T-340 6--28 6. 24 MAINTENANCE OF PAINTED SURFACES The refrigeration unit is protected by a special paint system against the corrosive atmosphere in which it normally operates. However, should the paint system be damaged, the base metal can corrode. [. . . ]