York YCUL0020, Installation, Operation And Maintenance Manual

Page: 123 / 178

JOHNSON CONTROLS
123
SECTION 7 – UNIT CONTROLS
Form 150.63-NM9
Issue date: 5/20/2021
7
L O W A M B I E N T T E M P
C U T O U T = X X X . X ° F
Displays the programmed Low Ambient Cutout.
F A N C O N T R O L O N
P R E S S U R E = X X X P S I G
Displays the programmed Fan On Pressure.
F A N D I F F E R E N T I A L O F F
P R E S S U R E = P S I G
Displays the programmed Fan Off Differential.
S Y S 1 T R I P V O L T S
= X . X V O L T S
Displays the programmed High Current Trip Voltage.
S Y S 2 T R I P V O L T S
= X . X V O L T S
Displays the programmed High Current Trip Voltage.
D I S C H A R G E A I R T E M P
= X X X . X ° F
Displays the Discharge Air Temp if Discharge Air
Temp Control is selected.
S E T P O I N T = X X X . X ° F
R A N G E = + / - ° F
Displays the programmed Setpoint and Range, if the
unit is programmed for DAT Control Mode.
S E T P O I N T = X X X . X ° F
R A N G E = + X X . X ° F
Displays the programmed Setpoint and Range, if the
unit is programmed for Discharge Air Control.
S Y S 1 SP = X X X X P S I G
R A N G E = + / - X X X P S I G
S Y S 2 SP = X X X X P S I G
R A N G E = + / - X X X P S I G
Displays the SP Setpoint and Control Range if SP Con-
trol is selected.
A M B I E N T A I R T E M P
= X X X . X ° F
Displays the Ambient Temp. at the time of the fault.
L E A D S Y S T E M I S
S Y S T E M N U M B E R X
Displays which system is in the lead at the time of the
fault.
E V A P P U M P I S X X X
E V A P H E A T E R I S X X X
Displays status of the Evaporator Pump and Heater
(not installed on a YCUL) at the time of the fault.
A C T I V E R E M O T E C T R L
X X X X
Displays whether Remote Control was active when the
fault occurred.
U N I T A C T U A L A M P S
= X X X . X A M P S
This is only displayed when the Current Feedback op-
tion is one for each unit.
S Y S X C O M P S T A T U S
1 = X X X 2 = X X X 3 = X X X
Displays which Compressors were running in the sys-
tem when the fault occurred.
S Y S X R U N T I M E
X X - X X - X X - X X D - H - M - S
Displays the system run time when the fault occurred.