Carrier SmartVu Control Manual page 109

Alm-277 ALM-277 Protective
Limit - UI Freeze
Reboot
Alm-278 ALM-278 Protective
Limit - VFD Config
Conflict
Alm-279 ALM-279 Protective
Limit - VFD Config
Failure
Alm-280 ALM-280 Protective
Limit – High VFD
Speed
Alm-282 ALM-282 Protective
Limit - Displacement
Switch
Alm-283 ALM-283 Protective
Limit - High Pressure
Switch
Alm-284 ALM-284 Protective
Limit - Power
Feedback Loss
Alm-285 ALM-285 Protective
Limit - Low Bearing
Delta Pres Difference
Alm-292 ALM-292 Protective
Limit - Guide Vane 2
Fault
Alm-286 ALM-286 Protective
Limit - Economizer
Pressure Low
Alm-287 ALM-287 Protective
Limit - Oil Pressure
Transducer Abnormal
Alm-296 ALM-296 Protective
Limit - High Evaporator
Pressure
SRDC-UG-2-14-000
19 Series Carrier®
–
TM
SmartVu
Controls IOM
Manual Same as
above
Manual Same as
above
Manual Same as
above
Manual As above
Manual As above
Manual As above
Manual As above
Manual As above
Manual As above
Manual As above
Manual As above
Manual As above
REVISION DATE
2.3 Dec 4, 2020
Carrier® SmartVu
Power on reset
controller
Reset shall be automatic when the
communication comes back to normal
Check VFD Configurations and save it
again
Check VFD actual speed
Check impeller displacement switch for
NGC chiller
Check high pressure switch for NGC
chiller
Check Power Feedback Input
Check if the filter of refrigerant pump inlet
is clogged. If clogged, please replace that
filter.
Check if refrigerant pump works. If pump
fails, please replace refrigerant pump.
Check if high float chamber has liquid. If
no liquid, please wait until chiller
automatically charge refrigerant into high
float chamber.
Check if bearing filter is clogged. If
clogged, please replace bearing filter
Alarm before start indicates guide vane
opening has not closed to less than 4%.
Alarm while running indicates guide vane
position is < -1% or > 103%. Enter Quick
Calibration and conduct Guide Vane
Calibration. Check wiring between the
guide vane feedback potentiometer and
IOB terminals. Check the 4-20mA current
For 19XR6/7 chiller
AND
DMP_ACT is not Fail,
AND
If Damper Valve delay is more than
dmp_dly seconds,
AND
If economizer pressure is less than
evaporator pressure and DSH is less than
0 ^F for continuous dmp_alm (default 180)
seconds
For 19XR6/7, 19XR2~5/C/D/E/V and
19XRF chiller,
AND
If oil sump pressure and oil discharge
pressure are in the range,
AND
If chiller is in startup ("oil pressure
check" before pump on) progress and not
in swift startup and OIL_PUMP1 is off,
If OIL_PD2 is over 6 psi
Check evaporator pressure sensor input
And check evaporator pressure cutout
configurations
PAGE
109 OF 168
TM
109