103
Table 16 — ICVC Primary and Secondary Messages and
Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
G. NORMAL RUN WITH OVERRIDES
*[LIMIT] is shown on the ICVC as the temperature, pressure, voltage, etc., set point predefined or selected by the operator as an override, alert, or
alarm condition. [VALUE] is the actual pressure, temperature, voltage, etc., at which the control has recorded at the time of the fault condition.
"Exceeded Limit" in Alarm or Alert messages may mean the value is above or below a threshold.
ICVC
FAULT
STATE
PRIMARY MESSAGE
SECONDARY MESSAGE
PRIMARY CAUSE
ADDITIONAL
CAUSE/REMEDY
120
RUN CAPACITY
LIMITED
HIGH CONDENSER
PRESSURE
120->Condenser Pressure
[VALUE] exceeded limit of
[LIMIT]*.
Check condenser water pump operation.
Check for high condenser water temperatures
or low flow rate.
Check cooling tower bypass valves and con-
denser water strainers. Verify that chiller isola-
tion valves are open.
Check COND PRESS OVERRIDE setting in
SETUP1 screen.
121
RUN CAPACITY
LIMITED
HIGH MOTOR TEMPERA-
TURE
121->Comp Motor Winding
Temp [VALUE] exceeded limit
of [LIMIT]*.
Check for closed valves or restrictions in
motor cooling lines.
Check for closed refrigerant isolation valves.
Check COMP MOTOR TEMP OVERRIDE
setting in SETUP1.
Check refrigerant filter drier.
122
RUN CAPACITY
LIMITED
LOW EVAP REFRIG TEMP 122->Evaporator Refrig Temp
[VALUE] exceeded limit of
[LIMIT]*.
Check refrigerant charge.
Check that optional cooler liquid line isolation
valve is fully open.
Check for excessive condenser flow or low
chilled water flow.
Check for low entering cooler water tempera-
ture.
Check that condenser inlet and outlet water
nozzles are piped correctly.
Check for waterbox division plate gasket
bypass.
Check REFRIG OVERRIDE DELTA T setting
in SETUP1 screen.
123
RUN CAPACITY
LIMITED
HIGH COMPRESSOR LIFT 123->Surge Prevention Over-
ride: Lift Too High For Com-
pressor
Check for high condenser water temperature
or low evaporator refrigerant temperature.
Check for high EVAPORATOR APPROACH
or CONDENSER APPROACH.
Check SURGE/HOT GAS BYPASS parame-
ters in OPTIONS screen.
124
RUN CAPACITY
LIMITED
MANUAL GUIDE VANE
TARGET
124->Run Capacity Limited:
Manual Guide Vane Target.
TARGET GUIDE VANE POSITION has been
forced in the COMPRESS screen. Select and
RELEASE force to return to normal (auto-
matic) operation.
125
RUN CAPACITY
LIMITED
LOW DISCHARGE
SUPERHEAT
No Alert message
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 ACTUAL SUPERHEAT in OVERRIDE
screen.
Содержание AquaEdge 19XR series
Страница 69: ...69 Fig 33 19XR Leak Test Procedures a19 1625 ...
Страница 150: ...150 Fig 62 PIC II Control Panel Wiring Schematic Frame 2 3 4 and E Compressors without Split Ring Diffuser a19 1870 ...
Страница 152: ...152 a19 1871 Fig 63 PIC II Control Panel Wiring Schematic Frame 4 and 5 Compressors with Split Ring Diffuser ...
Страница 154: ...154 Fig 64 Benshaw Inc Wye Delta Unit Mounted Starter Wiring Schematic Low Voltage a19 1873 ...
Страница 161: ...161 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v ...
Страница 162: ...162 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v cont ...
Страница 163: ...163 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v cont a19 1880 ...
Страница 176: ...176 CONTINUED ON NEXT PAGE Fig 71 Typical Medium Voltage Variable Frequency Drive VFD Wiring Schematic cont a19 2064 ...
Страница 186: ...186 APPENDIX B LEAD LAG WIRING 19XR Lead Lag Schematic Series Cooler Flow a19 1655 ...
Страница 187: ...187 APPENDIX B LEAD LAG WIRING cont 19XR Lead Lag Schematic Parallel Cooler Flow a19 1717 ...