York YCAS0130 manual This message indicates the EEV preheat % and the suc- tion superheat

S Y S	#	O I L =	1 7 5	P S	I	G
S P =	6 2 D P =		2 7 1	P S	I	G

This message indicates the system oil pressure, suc- tion pressure, and discharge pressure at the time of the fault.

S Y S	#	O I L =	1	5	4 .	8	°	F
S T =	3	9 . 0 D T = 1		2	3 .	7	°	F

This message shows the system oil temperature, suction temperature, and discharge temperature at the time of the fault.

S # S A T S U C T	= 3 4	.	7	°	F
S U C T S H E A T	= 1 0	.	5	°	F

These messages indicate compressor suction gas sat- uration temperature and superheat at the time of the fault.

S # S A T D S C H =	1 2 9 °	F
D S C H S H E A T	= 6 2 . 8 °	F

This message indicates compressor discharge gas sat- uration temperature and superheat at the time of the fault.

S Y S # S V S T E P = 4 0

This message indicates the compressor slide valve po- sition at the time of the fault. 0 steps equals minimum capacity and 75 steps equals fully loaded.

S Y S X E E V	= 3 7 . 4 %
S U C T S H E A T	= 1 0 . 2 º F

This message indicates the EEV preheat % and the suc- tion superheat.

S Y S	# C O O L E R I N L E T
R E F R I G T E M P = 2 8 . 2		° F

This message, which is only displayed if the unit is in R-407C mode, indicates the refrigerant temperature at the inlet of the evaporator.

FORM 201.19-NM1 (204)

S Y S # L L S V I S	O N
E C O N T X V S O L I S	O F F

This message indicates the EEV PILOT Solenoid Valve and the economizer Thermal Expansion Valve Solenoid Valve position: ON = Energized / OFF = De-Energized (OFF) at the time of the fault.

S Y S # F A N S T A G E	3
C O M P H E A T E R I S	O F F

This message indicates the stage of condenser fan op- eration on the system and the status of the compressor heater at the time of the fault. See Section 8.4 for details of fan staging.

S Y S # W Y E - D E L T A O N

This message indicate whether the WYE-DELTA out- put to the compressor was energized at the time of the fault

S Y S	X	D S C H C L S V	OFF
S Y S	X	W Y E - D E L T A	OFF

This message indicates whether the discharge cooling solenoid was energized at the time of the fault and if the WYE-DELTA output to the compressor was energized. (Low Temperature Glycol Chillers Only)

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YORK INTERNATIONAL 155