York YLAA0041 Installation Operation & Maintenance page 150

Air-cooled scroll chillers with brazed plate heat exchanger style b (60 hz) 4 to 12 fan 40 ton to 230 ton 140 kw to 800 kw
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Section 7: Unit controls
Displays the programmed Low Ambient Cutout.
L E A V I N G
C U T O U T
Displays the Leaving Liquid Temp. Cutout pro-
grammed.
F A N
C O N T R O L
P R E S S U R E = X X X
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
=
X . X
Displays the programmed High Current Trip Voltage.
S Y S 2
T R I P
=
X . X
Displays the programmed High Current Trip Voltage.
Y O R K
K I T
P U M P S
Indicates the Pump Control option is selected.
L C H L T
=
R C H L T
=
Displays the Leaving and Return chilled Liquid Tem-
perature at the time of the fault.
S E T P O I N T
R A N G E
Displays the programmed Setpoint and Range, if the
chiller is programmed for leaving chilled liquid control.
S E T P O I N T
R A N G E
Displays the programmed Setpoint and Range, if the
chiller is programmed for return chilled liquid control.
A M B I E N T
=
X X X . X
150
L I Q U I D
T E M P
=
X X X . X
° F
O N
P S I G
V O L T S
V O L T S
V O L T S
V O L T S
H Y D R O
= X
X X X . X
° F
X X X . X
° F
=
X X X . X
° F
=
+ / - ° F
=
X X X . X
° F
=
+ X X . X
° F
A I R
T E M P
° F
Displays the Ambient Temp. at the time of the fault.
L E A D
S Y S T E M
S Y S T E M
Displays which system is in the lead at the time of the
fault.
E V A P O R A T O R
S T A T U S
I S
Displays status of the Evaporator Heater at the time of
the fault.
E V A P O R A T O R
P U M P
S T A T U S
Displays status of Evaporator Water Pump at the time
of fault. Status may read ON, OFF or trip.
E V A P
P U M P
H O U R S
Evap Pump total run hours at the time of fault.
A C T I V E
R E M O T E
X X X X
Displays whether Remote Chiller Control was active
when the fault occurred.
S Y S
X
C O M P
1 = X X X
2 = X X X
Displays which Compressors were running in the sys-
tem when the fault occurred.
S Y S
X
X X - X X - X X - X X
Displays the system run time when the fault occurred.
S Y S
X
S P
D P
=
Displays the system Suction and Discharge Pressure of
the time of the fault.
S Y S
X
S U C T
S A T
S U C T
Displays the System Suction Temp and Saturated Suc-
tion Temp when an EEV is installed.
Form 150.72-ICOM6
Issue date: 12/19/2023
I S
N U M B E R
X
H E A T E R
X X X
W A T E R
X X X X
T O T A L
R U N
= X X X X
C T R L
S T A T U S
3 = X X X
R U N
T I M E
D - H - M - S
=
X X X X
P S I G
X X X X
P S I G
=
X X X . X ° F
=
X X X . X ° F
Johnson Controls

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