Carrier AQUAFORCE 30XA080-500 Controls, Start-up, Operation, Service And Troubleshooting Instructions

Also see for AQUAFORCE 30XA080: Installation instructions Controls, start-up, operation, service and troubleshooting instructions Installation instructions Product data

Contents

Carrier AQUAFORCE 30XA080-500 Controls, Start-up, Operation, Service And Troubleshooting Instructions Manual pdf 104 page image

104Compressor Unable to Stop MotorAlarm 111-12 — Circuit A (A1.12)Alarm 112-12 — Circuit B (B1.12)Alarm 113-12 — Circuit C (C1.12)Criteria for Trip — The alarm criterion is checked duringcompressor shutdown. This alarm will be generated if afterthree attempts to turn off the compressor outputs and the cur-rent is still greater than 15% of the MTA on at least one phasefor 10 continuous seconds.Action to be Taken — The compressor will be stopped.Reset Method — ManualPossible Causes — If this condition is encountered, check thefollowing items:• faulty or welded contactor• faulty wiringCompressor Phase ReversalAlarm 111-13 — Circuit A (A1.13)Alarm 112-13 — Circuit B (B1.13)Alarm 113-13 — Circuit C (C1.13)Criteria for Trip — The alarm criterion is checked duringcompressor start-up. This alarm will be generated if the CPMboard detects a phase reversal from the current toroid.Action to be Taken — The compressor will be stopped.Reset Method — ManualPossible Causes — If this condition is encountered, check thefollowing items:• if power supply lead at the terminal block is not operating atthe correct phase• if power supply is crossed when going through the currenttoroidCompressor MTA Configuration FaultAlarm 111-14 — Circuit A (A1.14)Alarm 112-14 — Circuit B (B1.14)Alarm 113-14 — Circuit C (C1.14)Criteria for Trip — The alarm criterion is checked whether thecompressor is ON or OFF. This alarm will be generated if theMTA setting is out of the allowed MTA range.Action to be Taken — The compressor will be stopped.Reset Method — ManualPossible Causes — If this condition is encountered, check thefollowing items:• incorrect MTA settings• faulty CPM boardCompressor Configuration Switch MismatchAlarm 111-15 — Circuit A (A1.15)Alarm 112-15 — Circuit B (B1.15)Alarm 113-15 — Circuit C (C1.15)Criteria for Trip — The alarm criterion is checked whether thecompressor is ON or OFF. This alarm will be generated ifthe CPM board S1 and S2 setting does not match softwareconfiguration.Action to be Taken — The compressor will be stopped.Reset Method — ManualPossible Causes — If this condition is encountered, check thefollowing items:• incorrect CPM board settings• faulty CPM boardCompressor Unexpected Switch Setting ChangeAlarm 111-16 — Circuit A (A1.16)Alarm 112-16 — Circuit B (B1.16)Alarm 113-16 — Circuit C (C1.16)Criteria for Trip — The alarm criterion is checked when thecompressor is ON. This alarm will be generated if the CPMboard S1 setting has changed.Action to be Taken — The compressor will be stopped.Reset Method — ManualPossible Causes — If this condition is encountered, check thefollowing items:• incorrect CPM board settings• faulty CPM boardCompressor Power on ResetAlarm 111-17 — Circuit A (A1.17)Alarm 112-17 — Circuit B (B1.17)Alarm 113-17 — Circuit C (C1.17)Criteria for Trip — The alarm criterion is checked when thecompressor is ON. This alarm will be generated if the CPMboard detects a power failure.Action to be Taken — The compressor will be stopped.Reset Method — ManualPossible Causes — If this condition is encountered, check forpower interruptions.Compressor UL 1998 Critical Section Software ErrorAlarm 111-18 — Circuit A (A1.18)Alarm 112-18 — Circuit B (B1.18)Alarm 113-18 — Circuit C (C1.18)Criteria for Trip — The alarm criterion is checked when thecompressor is ON. This alarm will be generated if the CPMboard detects a software error.Action to be Taken — The compressor will be stopped.Reset Method — ManualPossible Causes — If this condition is encountered, check thefollowing items:• electrical noise• faulty CPM boardCompressor UL 1998 Current Measure Dual Channel MismatchAlarm 111-19 — Circuit A (A1.19)Alarm 112-19 — Circuit B (B1.19)Alarm 113-19 — Circuit C (C1.19)Criteria for Trip — The alarm criterion is checked when thecompressor is ON. This alarm will be generated if the CPMboard detects a software error.Action to be Taken — The compressor will be stopped.Reset Method — ManualPossible Causes — If this condition is encountered, check thefollowing items:• electrical noise• faulty CPM boardService Test — Main power and control circuit powermust be on for Service Test.The Service Test function is used to verify proper operationof various devices within the chiller, such as condenser fan(s),compressors, minimum load valve solenoid (if installed),cooler pump(s) and remote alarm relay. This is helpful duringthe start-up procedure to determine if devices are installedcorrectly. See Fig. 63-65 for 30XA wiring diagrams.To use the Service Test mode, the Enable/Off/Remote Con-tact switch must be in the OFF position. Use the display keys tomove to the Service Test mode. The items are described in theService Test table. There are two sub-modes available. ServiceTest Enable, T.REQ allows for manual control of thecompressors and minimum load control. In this mode the com-pressors will operate only on command. The capacity controland head pressure control algorithms will be active. The con-denser fans will operate along with the EXVs. There must be aload on the chiller to operate for an extended period of time.All circuit safeties will be honored during the test. Quick TestEnable, Q.REQ allows for test of EXVs, condenser fans,pumps, low ambient head pressure control speed control, oil