York YCAS0130 Installation, Operation & Maintenance Manual page 155

S Y S # O I L =
S P = 6 2 D P =
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 =
S T = 3 9 . 0 D T = 1 2 3 . 7
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
S U C T S H E A T
These messages indicate compressor suction gas sat-
u ra tion temperature and superheat at the time of the
fault.
S # S A T D S C H =
D S C H S H E A T
This message indicates compressor discharge gas sat-
u ra tion temperature and superheat at the time of the
fault.
S Y S # S V S T E P
This message indicates the compressor slide valve po-
si tion at the time of the fault. 0 steps equals minimum
capacity and 75 steps equals fully loaded.
S Y S X E E V
S U C T S H E A T
This message indicates the EEV preheat % and the suc-
tion superheat.
S Y S # C O O L E R
R E F R I G T E M P
This message, which is only displayed if the unit is in
R-407C mode, indicates the refrigerant temperature at
the inlet of the evaporator.
YORK INTERNATIONAL
1 7 5 P S I G
2 7 1 P S I G
1 5 4 . 8 ° F
° F
= 3 4 . 7 ° F
= 1 0 . 5 ° F
1 2 9 ° F
= 6 2 . 8 ° F
= 4 0
= 3 7 . 4 %
= 1 0 . 2 º F
I N L E T
= 2 8 . 2 ° F
S Y S # L L S V
E C O N T X V S O L
This message indicates the EEV PILOT So le noid Valve
and the economizer Thermal Expansion Valve So le noid
Valve position: ON = Energized / OFF = De-En er gized
(OFF) at the time of the fault.
S Y S # F A N
C O M P H E A T E R
This message indicates the stage of condenser fan op-
er a tion on the system and the status of the com pres sor
heat er at the time of the fault. See Section 8.4 for de tails
of fan staging.
S Y S # W Y E - D E L T A
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 Y S X W Y E - D E L T A
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)
FORM 201.19-NM1 (204)
I S O N
I S O F F
S T A G E 3
I S O F F
O N
S V OFF
OFF
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