Carrier 19XRV specifications RUN Capacity, Limited

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Table 4 — ICVC Alert Codes (cont)

NORMAL RUN WITH OVERRIDES

	ICVC FAULT	PRIMARY	SECONDARY	PRIMARY CAUSE	ADDITIONAL CAUSE/REMEDY
	STATE	MESSAGE	MESSAGE	PRIMARY CAUSE	ADDITIONAL CAUSE/REMEDY
	STATE	MESSAGE	MESSAGE
	120	RUN CAPACITY	HIGH CONDENSER	120→Condenser Pressure	Check condenser water pump operation.
		LIMITED	PRESSURE	[VALUE] exceeded limit of	Check for high condenser water temperatures or
				[LIMIT]*.	low flow rate. Verify that isolation valves are
					open.
					Check Cond Press Override setting in SETUP1.
	121	RUN CAPACITY	HIGH MOTOR	121→Comp Motor Winding	Check for closed valves or restriction in motor
		LIMITED	TEMPERATURE	Temp [VALUE] exceeded	cooling lines.
				limit of [LIMIT]*.	Check for closed refrigerant isolation valves.
					Check Comp Motor Temp Override setting in
					SETUP1.
	122	RUN CAPACITY	LOW EVAP REFRIG	122→Evaporator Refrig	Check refrigerant charge.
		LIMITED	TEMP	Temp [VALUE] exceeded	Check that optional cooler liquid line isolation
				limit of [LIMIT]*.	valve is fully open.
					Check for excessive condenser flow or low
					chilled water flow.
					Check for low entering cooler temperature.
					Check that condenser inlet and outlet water
					nozzles are piped correctly.
					Check for waterbox division plate gasket bypass.
	123	RUN CAPACITY	HIGH COMPRESSOR	123→Surge Prevention	Check for high condenser water temperature or
		LIMITED	LIFT	Override: Lift Too High For	low suction temperature.
				Compressor	Check for high Evaporator or Condenser
					approaches.
					Check surge prevention parameters in
					OPTIONS screen.
	124	RUN CAPACITY	MANUAL GUIDE VANE	124→Run Capacity Limited:	Target Guide Vane Position has been forced in
		LIMITED	TARGET	Manual Guide Vane Target.	the COMPRESS screen. Select and RELEASE
					force to return to normal (automatic) operation.
	125	RUN CAPACITY	LOW DISCHARGE	No Alert message.	Check for oil loss or excess refrigerant charge.
		LIMITED	SUPERHEAT		Verify that the valves in the oil reclaim lines are
					open.
	126	RUN CAPACITY	HIGH RECTIFIER TEMP	126→Rectifier Temperature	Check Rectifier Temp Override in SETUP1
		LIMITED		[VALUE] exceeded limit of	screen.
				[LIMIT]*.	Check that VFD refrigerant isolation valves are
					open.
					Check VFD refrigerant cooling solenoid.
					Check for proper VFD cooling fan operation and
					blockage.
	127	RUN CAPACITY	MANUAL SPEED	No Alert message.	Chiller is not in automatic temperature control.
		LIMITED	CONTROL
	128	RUN CAPACITY	HIGH INVERTER TEMP	128→Inverter Temperature	Check Inverter Temp Override in SETUP1
		LIMITED		[VALUE] exceeded limit of	screen.
				[LIMIT]*.	Check that VFD refrigerant isolation valves are
					open.
					Check VFD refrigerant cooling solenoid.
					Check for proper VFD cooling fan operation and
					blockage.

*[LIMIT] is shown on the ICVC as the temperature, pressure, voltage, etc., set point predefined or selected by the operator as an override, alert, or alarm condition. [VALUE] is the actual pressure, temperature, voltage, etc., at which the control tripped.

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Contents

Start-Up and Service Instructions Contents A19-1831 A19-1842A19-1814 A19 1832A19-1833 Wire Lugs A19-1834VFD Configurations Parameter Default ValueA19 1846 A19-1921 TB1 I/O Terminal DesignationsA19-1835 A19-18361815 Drive Status Indicator Descriptions Name Color State DescriptionEnet LinkA19-1844 A19-1925Icvc Alert Codes MessagePrestart AlertRUN Capacity LimitedFault Primary Secondary Primary Cause Additional CAUSE/REMEDYSensor Alert LOW OILLoss CommunicationVFD Speed Alert System AlertIcvc Alarm Codes Failure to StopProtective Limit 233 234235 236Unused Unused StateSensor Fault VFD GatewayFault Type Description Corrective Action On VFD VFDCode Hist Screen NoneHist Screen None113 124Diode Checks Meter Lead Meter ReadingA19-1831Fig Open Access Door Frames 6 and 7 Power Terminal BlockA19-1814Fig Check DC Bus Terminals A19-1816Fig Removing EnclosureA19-1837 A19-1838A19-1817A19-1818 Comm Card A19-1819A19-1847 CR1 EA1 Line CR6 CB1 TB4CB2 FU1-FU3 PT1 Secondary Side Toward Door TB4 Dist SideA19-1848 Frame 6 PartsAppendix a Wiring Schematics Chiller Control Schematic A19-1946A19-1947 HgbpRHS UPCA19-1966 A19-1967 ShldA48-8578 A48-8579Appendix B Optional Bacnet Communications Wiring Table a SW3 Protocol Switch Settings For MS/TPTable B Baud Selection Table A48 8580Table C MS/TP Wiring Recommendations A48-8582Wiring Specifications Recommended Vendors and Part Numbers RmcorpCMP Table E LED Status Indicators RUN LED Error LED StatusLED Status RunObject ID Object Name CHW Page Copyright 2011 Carrier Corporation