YORK INTERNATIONAL
96
FORM 160.55-O1 (920)
ing. This message automatically clears and the Vanes
are permitted to open when the Evaporator pressure
increases to the reset value.
Warning Threshold (PSIA)
Reset Threshold (PSIA)
Water
Brine
Water
Brine
R11
5.5
0.1 >Safety Setpoint
5.6
0.3>Safety Setpoint
R123
4.5
0.1 >Safety Setpoint
4.7
0.3>Safety Setpoint
“
WARNING – VANES UNCALIBRATED – FIXED
SPEED
”
The Compressor Motor Variable Speed Drive (VSD) is
operating Fixed Speed (full speed) mode because the
Pre-rotation Vanes position potentiometer calibration
has not been performed. Message automatically clears
when calibration has been performed.
“
WA R N I N G – H A R M O N I C F I LT E R –
OPERATION INHIBITED
”
The compressor Motor variable Speed Drive (VSD) Har-
monic Filter has been inhibited. Harmonic filter operation
should not be altered by anyone other than a qualified
Service technician. Message automatically clears when
filter is enabled.
“
WARNING – HARMONIC FILTER –
DATA LOSS
”
Communications between the Harmonic Filter Logic Board
and the Compressor Motor Variable Speed Drive (VSD)
Logic Board or the Adaptive Capacity Control Board is not
occurring. While this condition exists, all Filter related pa-
rameters are displayed as X’s. This message automatically
clears when communications are restored.
“
WARNING – HARMONIC FILTER –
INPUT FREQUENCY RANGE
”
The power line frequency detected by the Compressor
motor Variable Speed Drive (VSD) Harmonic Filter is
outside the range of 58 to 62 Hz (60 Hz) or 49 to 51 Hz
(50 Hz). While this condition exists, all Filter related pa-
rameters are displayed as X’s. This message automatically
clears when the line frequency is within range.
“WARNING – PURGE – HIGH PRESSURE”
With the chiller running, the purge pressure increased to
>55.0 PSIA (standard purge units) or > 95.0 PSIA (high
efficiency purge units) continuously for 4 minutes. This
message will be displayed until the purge pressure decreases
to the reset threshold of < 55.0 PSIA (standard purge units),
<
95.0 PSIA (high efficiency purge units) or the chiller is
not running and the WARNING RESET key is pressed on
the HOME Screen is OPERATOR
(or higher) access mode.
This warning will not be displayed if the Purge Float Switch
Error warning (below) is in effect.
“
WARNING – PURGE – FLOAT SWITCH ERROR”
With the chiller running, the Purge Float Switches were
in invalid states. Typically this is caused by the Bottom
Float Switch being in the closed position and the Top
Float Switch in the open position, indicating the oil level
is simultaneously below the bottom switch and above
the top switch, an impossible condition. This message
will be displayed until the float switches are indicating
valid positions (or the chiller is not running) and the
WARNING RESET key is pressed on the HOME
Screen in OPERATOR (or higher) access mode. While
this message is displayed, the Purge Oil Solenoid Valve
is de-energized, draining the Purge Tank.
“
WARNING – EXCESS PURGE”
The purge EXHAUST COUNT has equaled the pro-
grammed MAXIMUM PURGES PER HOUR setpoint.
While this message is displayed, purging continues but
the EXHAUST COUNT is not incremented. Clearing
this message resets the exhaust count and exhaust win-
dow. If the chiller is running, the exhaust window will
then increment from 0 to 60 minutes and the exhaust
count will increment as exhausts occur. This message
will be displayed until the WARNING RESET key is
pressed on the HOME Screen in OPERATOR (or higher)
access mode.
“WARNING – PURGE – CANISTER #1 FULL”
(Flash Memory Card version C.MLM.02.02.xxx
and later)
The Purge Canister Alarm on the Lower Emissions Purge
Canister #1 indicates the canister has captured its capacity
of refrigerant. The canister must be replaced following
instructions on label inside Purge Panel door. This mes-
sage is triggered when the Purge Canister Alarm output
increases to > 2.20VDC. This message will be displayed
until the Alarm signal is < 0.90VDC and the WARNING
RESET key is pressed on the HOME Screen in OPERA-
TOR (or higher) access mode.
“WARNING – VANES UNCALIBRATED”
The Hot Gas Bypass feature is enabled, but the Pre-rota-
tion Vanes calibration procedure has not yet been per-
formed. Message automatically clears when calibration
has been performed.
“WARNING – EXTERNAL I/O – SERIAL COM-
MUNICATIONS”
Serial communications between the Microboard and the
optional Analog I/O Board has been interrupted for at
least 20 seconds. Message automatically clears when
communications are restored.
OptiView Control Center
