User manual CARRIER 30BQ050-070SEL

[. . . ] 3--6 3. 3. 9 Sequence of Operation -- Perishable Mode (Capacity Trim Heat) . 3--10 T-340 ii TABLE OF CONTENTS - Continued PARAGRAPH NUMBER 3. 4. 3 Generator Protection . iii Page 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 4--5 4--5 4--5 T-340 TABLE OF CONTENTS - Continued PARAGRAPH NUMBER Page 4. 8 START--UP INSPECTION . 6--1 6. 3 REFRIGERATION SYSTEM SERVICE-UNITS WITH STANDARD PIPING (with Service Valves) 6--2 6. 3. 1 Service Connections . [. . . ] ERR 1--Program Memory Indicates a problem with the controller program. failure ERR 2--Watchdog The controller program has entered a mode whereby time--out the controller program has stopped executing. ERR 3--N/A N/A ERR 4--N/A N/A The controller's Analog to Digital (A--D) converter has ERR 5--A--D failure failed. ERR Internal ERR 7--Controller failure Internal version/firmware incompatible. Microprocessor # Failure ERR 8--DataCORDER Internal DataCORDER memory failure. In the event that a failure occurs and the display cannot be updated, the status LED will indicate the appropriate ERR code using Morse code as shown below. Entr Enter Set point The controller is prompting the operator to enter a set point. StPt (Press Arrow & Enter) Low Main Voltage (Function Codes This message will be alternately displayed with the set point whenever the supply LO Cd27--38 disabled voltage is less than 75% of its proper value. and NO alarm stored. ) T-340 3--26 Table 3- Controller Pre-7 -trip Test Codes (Sheet 1 of 4) Code No. TITLE DESCRIPTION P0--0 P1--0 P1--1 P2--0 P2--1 NOTE "Auto" or "Auto1" menu includes the: P0, P1, P2, P3, P4, P5, P6 and rSLts. "Auto2" menu includes P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10 and rSLts. Pass/Fail Criteria: Passes if change in current draw is within the range specified. Fails if AL11 or AL12 activates during test. P3 P3--0 Low Speed Evaporator Fan Motors On P3--1 Low Speed Evaporator Fan Motors Off High Speed Evaporator Fan Motors On High Speed Evaporator Fan Motors Off 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. [. . . ] If the tip of the pen (item 4) is on the 0C (32F) chart ring the recorder is in calibration, proceed to step c. If the tip of the pen is NOT on the 0C (32F) chart ring, the operator must loosen the two screws on the bottom of the stylus arm to adjust the pen tip manually to the 0C (32F) chart ring. Press the calibration button and the pen will position itself to the correct temperature reading. T-340 6--26 6. 23 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. [. . . ]