Carrier 19XL specifications Recycle Shutdown, Normal or AUTO.-RESTART, Autorestart in Progress

Table 9 Ð LID Primary and Secondary Messages and Custom Alarm/Alert Messages

with Troubleshooting Guides (cont)

C. IN RECYCLE SHUTDOWN

PRIMARY MESSAGE	SECONDARY MESSAGE	PROBABLE CAUSE/REMEDY
RECYCLE RESTART PENDING	OCCUPIED MODE	Unit in recycle mode, chilled water temperature is not
		high enough to start.
RECYCLE RESTART PENDING	REMOTE CONTACT CLOSED	Unit in recycle mode, chilled water temperature is not
		high enough to start.
RECYCLE RESTART PENDING		Chiller START/STOP on Status01 manually forced to
	START COMMAND IN EFFECT	start, chilled water temperature is not high enough to
		start.
RECYCLE RESTART PENDING	ICE BUILD MODE	Chiller in ICE BUILD mode. Chilled Water/Brine Tem-
		perature is satis®ed for Ice Build Setpoint temperature.

D. PRE-START ALERTS: These alerts only delay start-up. When alert is corrected, the start-up will continue. No reset is necessary.

PRIMARY MESSAGE	SECONDARY MESSAGE	ALARM MESSAGE/PRIMARY CAUSE		ADDITIONAL CAUSE/REMEDY
PRESTART ALERT		STARTS EXCESSIVE Compressor		Depress the RESET softkey if addi-
	STARTS LIMIT EXCEEDED			tional start is required. Reassess
		Starts (8 in 12 hours)
				start-up requirements.
PRESTART ALERT		MTRW [VALUE]* exceeded limit of		Check motor cooling line for proper
	HIGH MOTOR TEMPERATURE			operation. Check for excessive
		[LIMIT]*. Check motor temperature.
				starts within a short time span.
		MTRB [VALUE]* exceeded limit of		Check oil heater for proper opera-
PRESTART ALERT				tion, check for low oil level, partially
	HIGH BEARING TEMPERATURE	[LIMIT]*. Check thrust bearing
				closed oil supply valves, etc. Check
		temperature.
				sensor accuracy.
PRESTART ALERT		CMPD [VALUE]* exceeded limit of		Check sensor accuracy. Allow dis-
	HIGH DISCHARGE TEMP			charge temperature to cool. Check
		[LIMIT]*. Check discharge temperature.
				for excessive starts.
PRESTART ALERT		ERT [VALUE]* exceeded limit of		Check transducer accuracy. Check
	LOW REFRIGERANT TEMP			for low chilled water/brine supply
		[LIMIT]*. Check refrigerant temperature.
				temperature.
PRESTART ALERT	LOW OIL TEMPERATURE	OILT [VALUE]* exceeded limit of		Check oil heater power, oil heater
		[LIMIT]*. Check oil temperature.		relay. Check oil level.
				Check voltage supply. Check volt-
PRESTART ALERT	LOW LINE VOLTAGE	V	P [VALUE]* exceeded limit of	age transformers. Consult power
				utility if voltage is low. Adjust voltage
		[LIMIT]*. Check voltage suppy.
				potentiometer in starter for SMM
				voltage input.
				Check voltage supply. Check volt-
PRESTART ALERT	HIGH LINE VOLTAGE	V	P [VALUE]* exceeded limit of	age transformers. Consult power
				utility if voltage is low. Adjust voltage
		[LIMIT]*. Check voltage supply.
				potentiometer in starter for SMM
				voltage input.
PRESTART ALERT		CRP [VALUE]* exceeded limit of		Check for high condenser water
	HIGH CONDENSER PRESSURE	[LIMIT]*. Check condenser water and		temperature. Check transducer
		transducer.		accuracy.

*[LIMIT] is shown on the LID as temperature, pressure, voltage, etc., prede®ned or selected by the operator as an override or an alert. [VALUE] is the actual temperature, pressure, voltage, etc., at which the control tripped.

E. NORMAL OR AUTO.-RESTART

PRIMARY MESSAGE	SECONDARY MESSAGE	PROBABLE CAUSE/REMEDY
STARTUP IN PROGRESS	OCCUPIED MODE	Chiller starting. Time schedule is occupied.
STARTUP IN PROGRESS	REMOTE CONTACT CLOSED	Chiller starting. Remote contacts are closed.
STARTUP IN PROGRESS	START COMMAND IN EFFECT	Chiller starting. Chiller START/STOP on Status01 manu-
		ally forced to start.
AUTORESTART IN PROGRESS	OCCUPIED MODE	Chiller starting. Time schedule is occupied.
AUTORESTART IN PROGRESS	REMOTE CONTACT CLOSED	Chiller starting. Remote contacts are closed.
AUTORESTART IN PROGRESS	START COMMAND IN EFFECT	Chiller starting. Chiller START/STOP on Status01 manu-
		ally forced to start.
NOTE: See Legend on page 68.

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