29
ALT-148
Process Alert-
Purge Daily
Pumpout Limit
Exceed
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Reset shall be automatic when the situation comes back to normal
ALT-149
Process Alert -
Low Bearing
Delta Pres
Difference
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Reset shall be automatic when the situation comes back to normal
ALT-150
Process Alert -
Low Discharge
Superheat
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check for oil loss from compressor or excess oil charge. Check for
excess refrigerant charge. Verify that the valves in the oil reclaim lines
are open. Check oil reclaim strainers. Check acyual SUPERHEAT in
Temperature screen.
ALT-151
Process Alert -
High Evaporator
Approach
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check EVAP APPROACH ALERT setting. Check Evaporator Water
Flow. Check EVAP REFRIG LIQUID TEMP and LEAVING CHILLED
WATER temperature sensor resistances and voltage drop. Check EVAP
REFRIG LIQUID TEMP and LEAVING CHILLED WATER temperature
sensor wiring to the IOB terminal block. Check for oil loss or low
refrigerant charge. Check oil reclaim line isolation valves and strainers.
Confirm that the optional refrigerant Liquid Line Isolation Valve is open.
Check for float valve operation and for refrigerant stacking in the
condenser. Check chilled water valves and strainers. Check for air in the
evaporator water box or division plate bypass. Check for fouled tubes.
Confirm that the oil reclaim system is working. Take oil sample and
check for mineral oil contamination. Check for 20 degree temperature
difference between leaving chilled water and leaving condenser water.
ALT-152
Process Alert -
High Condenser
Approach
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check COND APPROACH ALERT setting. Check Condenser Water
Flow. Check CONDENSER PRESSURE transducer and LEAVING
CONDENSER WATER temperature sensor resistance or voltage drop.
Check condenser shell temperature against condenser pressure
measured with a refrigerant gage for evidence of non-condensable in
refrigerant charge. Check for condenser water box division plate bypass.
Check CONDENSER PRESSURE transducer and LEAVING
CONDENSER WATER sensor wiring to the CCM. Check for air in the
condenser water box. Confirm that the condenser tubes are not fouled.
ALT-153
Process Alert -
High Noise
Region
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check the envelope control configurations
ALT-154
Process Alert -
Damper Valve
Alert
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check damper valve wiring and position feedback inputs
ALT-155
Process Alert -
Low Oil Pressure
Difference
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check oil pump wiring and oil filter. Quick test oil pump as necessary
ALT-156
Process Alert -
EC Valve Alert
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check EC valve wiring and feedback inputs
ALT-157
Process Alert -
High Condenser
Pressure Chiller
Off
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check condenser pressure sensor input
And check condenser pressure override configurations
ALT-158
Process Alert -
Prognostic Alert
Automatic
Alert Relay is ON
Check Alarm Menu – Prognostic table for detailed information. Check
LEN bus traffic with bus monitor
ALT-159
Process Alert –
LEN Scan
Warning
Manual
Alert Relay is ON
Check LEN bus traffic with bus monitor
ALT-160
Process Alert –
Oil Filter
Replacement
Manual
Alert Relay is ON
Check oil filter
ALT-161
Process Alert –
Transducer
Calibration
Manual
Alert Relay is ON
Do the indicated transducer calibration
ALT-162
Process Alert –
Low Refrigerant
Charge
Manual
Alert Relay is ON
Recharge the refrigerant into chiller
ALT-163
Process Alert -
Low Liquid Level
in High Float VLV
Automatic
Alert Relay is ON
Check downstream float valve Alert relay is On, With compressor not
running and refrigerant pump On this alert will be active if liquid level is
not satisfied after 10 minutes.
ALT-164
Process Alert –
Displacement
Switch
Manual
Alert Relay is ON
Check impeller displacement switch
ALT-165
Process Alert –
High Oil Supply
Temp
Automatic
Alert Relay is ON
Check oil supply temperature and OIL EXV status
Table 15 — PIC6 Alert Codes* (cont)
ALERT CODE
DESCRIPTION
OF ALARM TEXT
RESET TYPE
ACTION TAKEN BY
THE CONTROL
POSSIBLE CAUSE
Содержание AquaEdge 19DV series
Страница 6: ...6 Fig 3 IOB2 and IOB3 AVAILABLE FOR OLDER SOFTWARE...
Страница 7: ...7 Fig 4 IOB 4...
Страница 8: ...8 Fig 5 19DV Control Panel Abbreviations...
Страница 9: ...9 Fig 6 19DV Control Wiring...