Carrier SmartVu control User Manual

SRDC-UG-2-14-000
REVISION
DATE
PAGE
19 Series Carrier®
SmartVu
TM
–
Controls IOM
2.3
Dec 4, 2020
109 OF 168
109
Alm-277
ALM-277 Protective
Limit - UI Freeze
Reboot
Manual
Same as
above
Power on reset
Carrier® SmartVu
TM
controller
Alm-278
ALM-278 Protective
Limit - VFD Config
Conflict
Manual
Same as
above
Reset shall be automatic when the
communication comes back to normal
Alm-279
ALM-279 Protective
Limit - VFD Config
Failure
Manual
Same as
above
Check VFD Configurations and save it
again
Alm-280
ALM-280 Protective
Limit – High VFD
Speed
Manual
As above
Check VFD actual speed
Alm-282
ALM-282 Protective
Limit - Displacement
Switch
Manual
As above
Check impeller displacement switch for
NGC chiller
Alm-283
ALM-283 Protective
Limit - High Pressure
Switch
Manual
As above
Check high pressure switch for NGC
chiller
Alm-284
ALM-284 Protective
Limit - Power
Feedback Loss
Manual
As above
Check Power Feedback Input
Alm-285
ALM-285 Protective
Limit - Low Bearing
Delta Pres Difference
Manual
As above
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
Alm-292
ALM-292 Protective
Limit - Guide Vane 2
Fault
Manual
As above
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
Alm-286
ALM-286 Protective
Limit - Economizer
Pressure Low
Manual
As above
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
Alm-287
ALM-287 Protective
Limit - Oil Pressure
Transducer Abnormal
Manual
As above
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
Alm-296
ALM-296 Protective
Limit - High Evaporator
Pressure
Manual
As above
Check evaporator pressure sensor input
And check evaporator pressure cutout
configurations

Carrier SmartVu control Specifications

General

Brand	Carrier
Model	SmartVu control
Category	Control Panel
Language	English