Carrier 19XRV Primary Secondary Primary Cause Additional CAUSE/REMEDY, Sensor Alert, Low Oil

Table 4 — ICVC Alert Codes (cont)

CHILLER ALERTS

ICVC FAULT	PRIMARY	SECONDARY	PRIMARY CAUSE	ADDITIONAL CAUSE/REMEDY
STATE	MESSAGE	MESSAGE
140	SENSOR ALERT	LEAVING COND WATER	140→Sensor Fault: Check	Check sensor resistance or voltage drop.
		TEMP	Leaving Cond Water Sensor.	Check for proper wiring.
141	SENSOR ALERT	ENTERING COND WATER	141→Sensor Fault: Check	Check sensor resistance or voltage drop.
		TEMP	Entering Cond Water Sensor.	Check for proper wiring.
142	LOW OIL	CHECK OIL FILTER	142→Low Oil Pressure Alert.	Check for partially or closed shut-off valves.
	PRESSURE ALERT		Check Oil Filter.	Check oil filter.
				Check oil pump and power supply.
				Check oil level.
				Check for foaming oil at start-up.
				Check transducer wiring and accuracy.
143	AUTORESTART	LINE CURRENT	143→Line Current Imbal-	Power loss has been detected in any phase.
	PENDING	IMBALANCE	ance: Check VFD Fault His-	Chiller automatically restarting.
			tory for Values.
144	AUTORESTART	LINE VOLTAGE	144→Single Cycle Line	A drop in line voltage has been detected within
	PENDING	DROP OUT	Voltage Dropout.	2 voltage cycles.
				Chiller automatically restarting if Auto Restart is
				enabled in OPTIONS screen.
145	AUTORESTART	HIGH LINE VOLTAGE	145→High Percent Line	Check phase to phase and phase to ground line
	PENDING		Voltage [VALUE].	power.
146	AUTORESTART	LOW LINE VOLTAGE	146→Low Percent Line	Check phase to phase and phase to ground line
	PENDING		Voltage [VALUE].	power.
147	AUTORESTART	VFD MODULE RESET	147->VFD Module Power-On	VFD Module has detected a hardware fault due
	PENDING		Reset When Running.	to electrical noise, power loss or software and
				has reset. Chiller automatically restarting.
				Check for power loss and sources of electro-
				magnetic interference.
148	AUTORESTART	POWER LOSS	148→Control Power-Loss	Check 24 vac control power supply to ICVC.
	PENDING		When Running.
149	SENSOR ALERT	HIGH DISCHARGE TEMP	149→Comp Discharge Temp	Check sensor resistance or voltage drop.
			[VALUE] Exceeded Limit of	Check for proper wiring.
			[LIMIT]*.	Check for proper inlet guide vane and optional
				diffuser actuator operation.
				Check for proper condenser flow and
				temperature.
				Check for high lift or low load.
				Check for fouled tubes or noncondensables in
				the chiller.
150	SENSOR ALERT	HIGH BEARING	150→Comp Thrust Brg Temp	Check sensor resistance or voltage drop.
		TEMPERATURE	[VALUE] exceeded limit of	Check for proper wiring.
			[LIMIT]*.	Check for partially closed service valves.
				Check oil cooler TXV.
				Check oil level and oil temperature.
151	CONDENSER	PUMP RELAY	151→High Condenser Pres-	Check sensor wiring and accuracy.
	PRESSURE ALERT	ENERGIZED	sure [VALUE]: Pump Ener-	Check condenser flow and water temperature.
			gized to Reduce Pressure.	Check for fouled tubes.
				This alarm is not caused by the High Pressure
				Switch.
152	RECYCLE ALERT	EXCESSIVE RECYCLE	152→Excessive recycle	Chiller load is too low to keep compressor on
		STARTS	starts.	line and there has been more than 5 starts in
				4 hours.
				Increase chiller load, adjust hot gas bypass,
				increase RECYCLE RESTART DELTA T from
				SETUP1 Screen.
153	no message:	no message; ALERT only	153→Lead/Lag Disabled-	Illegal chiller address configuration in Lead/Lag
	ALERT		Config: Duplicate Chiller	screen. Both chillers require a different address.
	only		Address.
154	POTENTIAL	COND PRESS/TEMP	154→Condenser freeze up	The condenser pressure transducer is reading a
	FREEZE-UP	TOO LOW	prevention.	pressure that could freeze the condenser tubes.
				Check for condenser refrigerant leaks.
				Check fluid temperature.
				Check sensor wiring and accuracy.
				Place the chiller in PUMPDOWN mode if the
				vessel is evacuated.
155	OPTION SENSOR	REMOTE RESET	155→Sensor Fault/Option	Check sensor resistance or voltage drop.
	FAULT	SENSOR	Disabled: Remote Reset	Check for proper wiring to CCM connector J4.
			Sensor.
156	OPTION SENSOR	AUTO CHILLED WATER	156→Sensor Fault/Option	Check sensor resistance or voltage drop.
	FAULT	RESET	Disabled: Auto Chilled Water	Check for proper wiring to CCM connector J5.
			Reset.
157	OPTION SENSOR	AUTO DEMAND LIMIT	157→Sensor Fault/Option	Check sensor resistance or voltage drop.
	FAULT	INPUT	Disabled: Auto Demand Limit	Check for proper wiring to CCM connector J5.
			Input.
158	SENSOR ALERT	SPARE TEMPERATURE	158→Spare Temperature 1	Check sensor resistance or voltage drop.
		#1	[VALUE] exceeded limit of	Check for proper wiring to CCM connector J4.
			[LIMIT]*.	Check Spare Temp #1 Limit in SETUP1 screen.

*[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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