Table of Contents
Advertisement
Alarm and Trip Messages
TAHH-140 "HIGH SUMP OIL TEMPERATURE"
High oil sump temperature will cause the system to trip
off line.
PSHH-113A " HIGH PRESSURE CUTOUT
(HARDWIRED)"
The compressor discharge temperature cannot be
allowed to exceed limits.
PDHH-143 " HIGH COMPRESSOR OIL
PRESSURE"
In the event that the compressor oil temperature exceeds
limits, the system will trip off line. This switch is
hardwired.
PALL-111 " LOW EVAPORATOR PRESSURE"
Low evaporator pressure can lead to system freeze.
If the RTD in the evaporator detects pressure below
allowable limits, the system trips off line.
PALL-143 " LOW COMPRESSOR OIL
PRESSURE"
Lubrication is vital to the protection of the compressor.
Low oil pressure will cause the system to trip off line.
TALL-140 "LOW SUMP OIL TEMPERATURE"
The oil temperature must be maintained for proper
viscosity. If the oil temperature falls below a preset
limit, the system trips off line.
TALL-100 " LOW LEAVING CHILLED WATER
TEMPERATURE"
The chilled water must not be permitted to freeze. In the
event that the chilled water temperature sensor detects an
abnormally low temperature, the system trips off line.
" OPERATION MODE SWITCH
MALFUNCTION (BOTH INPUTS HIGH)"
The mode switch on the control panel should not, under
normal circumstances, provide two confl icting signals.
In the event of mode switch malfunction, the system
processor signals a system trip.
" VS OIL PUMP DIDN'T START"
If the variable speed oil pump motor faults, the system
trips off line.
40
" POWER FAILURE"
If the electrical service is interrupted, the system will
trip off line. It will be necessary to initiate an engine
purge before the chiller can be restarted.
" PROGRAM FAULT"
If any aspect of the system logic fails or faults, a program
fault will occur and the system will trip off line.
" PURGE ENGINE IN MAINTENANCE MODE"
If the system trips off line without a proper engine
shutdown being done, the engine will need to be purged
before restarting.
" PROXIMITOR ZE-140 UNCALIBRATED (J-
SERIES COMPRESSORS ONLY)"
The compressor thrust probe protects the impeller from
damage as the forward thrust bearing wears. On the
J-Series compressors, this probe is calibrated prior to
commissioning. If the system has not been calibrated
and a start is attempted, the system trips off line.
"ENGINE SPEED LOSS"
If the engine's fuel supply or ignition system is
interrupted or faulted and the engine stalls, the system
will detect engine speed loss and trip the system off
line.
"COMPRESSOR THRUST BEARING SWITCH"
The trust bearing switch protects the compressor
impeller from damage as the thrust bearing wears. If
the bearing wear becomes excessive, the thrust bearing
switch will cause the system to trip off line.
Consult the factory prior to restoring
the system to operational status.
Continuing to operate the compressor
could result in equipment damage.
"LOW WATER JACKET LEVEL"
Proper cooling of the engine is essential to safe engine
operation. If the engine cooling water level in the water
jacket drops below allowable limits, the system will
trip off line.
FORM 160.60-O2 (1004)
YORK INTERNATIONAL
Advertisement
Table of Contents
