Section 3 Unit Data; Operating Data Displays - York Millennium Remote Control Center Operating Instructions Manual

Operating Data Displays

The OPER DATA key gives the user access to many
unit and system operating parameters. Following is a
list of displayed operating data screens in the order that
they are displayed:
L C H L T = X X X . X ° F
R C H L T = X X X . X ° F
LCHLT = Leaving chilled liquid temperature and
RCHLT = Return chilled liquid temperature.
D I S C H A R G E
= 5 7 . 4 ° F
Condensing Unit Only – This display shows the dis-
charge air temperature of the leaving the evaporator.
This display will only be shown when the Control Mode
is programmed for Discharge Air.
S Y S X S U C T I O N
= 7 3 . 6 ° F
Condensing Unit Only – This message shows the suc-
tion line temperature of the respective refrigerant sys-
tem. The temperature sensors for this function are op-
tional on all models.
A M B I E N T A I R
= X X X . X ° F
Outside ambient air temperature.
S Y S X S P =
D P =
System suction and discharge pressure.
These parameters are only available
when the optional Discharge Pressure
Transducers and Optional Suction
Transducers (some models) are in-
stalled on the chiller.
S Y S X H O U R S
2 = X X X X X
System accumulated run times for each system com-
pressor.
YORK INTERNATIONAL
UNIT DATA
A I R T E M P
T E M P
T E M P
X X X X P S I G
X X X X P S I G
1 = X X X X X
3 = X X X X X
Some systems only have two compres-
sors and will only display such.
L O A D T I M E R
U N L O A D T I M E R
Unit load and unload timers. Refer to unit manual for
detailed loading and unloading scheme.
C O O L I N G D E M A N D
X
The cooling demand indicates the "step" of capacity
control the chiller control panel is controlling at. See
the chiller manual for details.
L E A D S Y S T E M
S Y S T E M N U M B E R
On two system units, this message indicates which sys-
tem is the lead.
E V A P P U M P
E V A P H E A T E R
Chiller evaporator pump contacts and evaporator heater
status.
S Y S X N U M B E R
C O M P S R U N N I N G
The number of compressors commanded to run for a
particular system.
S Y S X R U N
X X - X X - X X - X X
System run time in days, hours, minutes, seconds for
the current cycle.
S Y S X L L S V
H O T G A S S O L
System status of liquid line solenoid and hot gas sole-
noid (optional).
FORM 150.62-NM3
X X X S E C
X X X S E C
O F X S T E P S
I S
X
I S X X X
I S X X X
O F
X
T I M E
D - H - M - S
I S X X X
I S X X X
3
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