Filter
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YORK INTERNATIONAL
96
FORM 160.55-O1 (604)
ing. This message automatically clears and the Vanes
are permitted to open when the Evap o ra tor pres sure
in creas es to the reset value.
Warning Threshold (PSIA) Reset Thresh old (PSIA)
Water Brine Wa ter 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.
“WARNING – HARMONIC FILTER –
OPERATION INHIBITED”
The compressor Motor variable Speed Drive (VSD) Har-
mon ic Filter has been inhibited. Refer to VSD Ser vice
manual 160.00-M1. Harmonic Þ lter operation should not be
altered by anyone other than a qualiÞ ed Service tech ni cian.
Message automatically clears when Þ lter is en abled.
“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 Fil ter related pa-
ram e ters are displayed as X’s. This mes sage au to mat i cal ly
clears when communications are re stored.
“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-
ram e ters are displayed as X’s. This message au to mat i cal ly
clears when the line frequency is within range.
“WARNING – PURGE – HIGH PRESSURE”
With the chiller running, the purge pressure in creased to
>55.0 PSIA (standard purge units) or > 95.0 PSIA (high
efÞ ciency purge units) con tin u ous ly for 4 min utes. This
message will be displayed until the purge pressure de creas es
to the reset threshold of <
55.0 PSIA (stan dard purge units),
<
95.0 PSIA (high efÞ ciency purge units) or the chiller is
not running and the WARN ING RESET key is pressed on
the HOME Screen is OP ER A TOR (or high er) access mode.
This warning will not be dis played if the Purge Float Switch
Error warn ing (below) is in ef fect.
“WARNING – PURGE – FLOAT SWITCH ER ROR”
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 lev el
is si mul ta neous ly below the bottom switch and above
the top switch, an impossible condition. This message
will be displayed until the ß oat switches are in di cat ing
valid positions (or the chiller is not run ning) and the
WARNING RESET key is pressed on the HOME
Screen in OPERATOR (or high er) 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 set point.
While this message is displayed, purging continues but
the EXHAUST COUNT is not incremented. Clearing
this message resets the ex haust count and exhaust win-
dow. If the chiller is run ning, the exhaust window will
then in cre ment from 0 to 60 minutes and the exhaust
count will increment as ex hausts occur. This message
will be displayed until the WARNING RESET key is
pressed on the HOME Screen in OPERATOR (or high er)
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 Emis sions Purge
Canister #1 indicates the canister has captured its ca pac i ty
of refrigerant. The can is ter must be re placed fol low ing
instructions on label inside Purge Panel door. This mes-
sage is trig gered 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 cal i bra tion
has been performed.
“WARNING – EXTERNAL I/O – SERIAL COM-
MU NI CA TIONS”
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.
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