American Standard 4A6V0024A1000B Service Facts page 30

V V a a r r i i a a b b l l e e S S p p e e e e d d A A l l e e r r t t C C o o d d e e s s
Display
Alert
Alert
Assembly
Group
Code
Text
Protection
184 Algorithm INT LUBE FLT
Fault
NO TEXT
NO TEXT
NO TEXT
NO TEXT
CMPR LUBE
Protection
185 Derating
Fault
NO TEXT
NO TEXT
CLG DERATE
SYS OR
NO TEXT
30
Sub-
A/TZONE
State action on
alar-
850/950
occurrence
m
Send error to
thermostat and alert
9 "Wait"
menu in CDA history
N/AOnly
visible Dome temperature is
viaTechni- high. Limit compressor
0
cian log in speed to prevent
950/850 higher load.
history
N/A Only
Dome temperature is
visible via
high. Decrease
Technician
1
compressor speed to
log in 950
reduce load.
history
N/A Only Dome temperature is
visible via high. Increase
Technician compressor speed to
2
log in 950 improve compressor
history cooling.
N/A Only
Dome temperature is
visible via
high. Limit compressor
Technician
3
speed to prevent
log in 950
higher load.
history
5 N/A
N/AOnly
visible Low compressor
viaTechni- speed with high Drive
6
cian log in output current.
950/850 Increase speed.
history
N/A Only
Low compressor
visible via
speed with high Drive
Technician
7
output current. Hold
log in 950
speed.
history
Suction saturation
N/A Only temperature is 28
visible via degrees For less (92
Technician PSIG) for at least 20
8
minutes.
log in 950
history
N/A
9
N/A Only
visible via
Technician Suction pressure is low
10
log in 950
history
Alert
State action on
Description
clearance
Internal
Lubrication
Failure. For 60
minutes internal
5 Minute
lube does not
compressor soft
occur and
lockout time has
compressor RPM
elapsed
is below the
limitation for
internal lube to be
satisfied.
Compressor
Dome
Temperature
Protection, Limit
compressor
speed.
Compressor
Dome
Temperature
Protection,
Derate
compressor
speed.
Compressor
Dome
Temperature
Protection,
Increase
compressor
speed.
Compressor
Dome
Temperature
Protection, Limit
compressor
speed.
Compressor
Lubrication cycle.
Low compressor
speed with high
Drive output
current, Increase
compressor
speed.
Low compressor
speed with high
Drive output
current, Limit
compressor
speed.
Saturated suction
temperature is 35 Indoor coil freeze
degrees For higher
protection is
(107 PSIG) active, Derate
compressor
speed.
System Oil
Return function
active to bring oil
back to
compressor.
Low Suction
Pressure
Protection in
cooling mode,
Derate
compressor
speed.
Possible Cause
A Derate condition
exists that does not
allow internal lube
speed to be achieved
when needed. Check
for cause of Derate.
Low outdoor ambient
heating condition.
Low outdoor ambient
heating condition.
Low speed heating
with high indoor
ambient.
Low speed heating
with high indoor
ambient.
Low speed operation
requires periodic
lubrication cycle.
Low speed with high
condenser load.
(Indoor coil in heating
mode/outdoor coil in
cooling mode)
Low speed with high
condenser load.
(Indoor coil in heating
mode/outdoor coil in
cooling mode)
In cooling mode: low
indoor/outdoor
ambient operation.
Low airflow, low
humidity, Low RH
dehumidification
target.
Low Dome
temperature with an
ON cycle and/or
multiple short cycles.
In cooling mode: low
indoor/outdoor
ambient operation.
4A-V0-SF-1G-EN