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The following table assists in explaining the alarm
codes that appear in the remote interface panel in the
Table 15. Compressor fault code summary
AlertCode
Alert Condition
Normal Run Solid
Normal operation, no alarm status.
Green
Long run time. Compressor is running for more than 18 hours at full load.
CODE 1
(CODE 1 is disabled in heat pump mode.)
Yellow Flash 1
Compressor pressure trip. Compressor runs for 12 seconds to 15 minutes
CODE 2
followed by a compressor trip condition lasting longer than 7 minutes.
Yellow Flash 2
Pressure switch cycling. Compressor runs for 12 seconds to 15 minutes
CODE 3
followed by a compressor trip lasting 35 seconds to 7 minutes.
Yellow Flash 3
CODE 4
Locked rotor. Compressor trips within a compressor run time of 12 seconds
Yellow Flash 4
and does not start within 35 seconds.
Compressor moderate run trip. Compressor runs for 15 minutes to 18 hours
CODE 5
followed by a compressor trip lasting longer than 7 minutes.
Yellow Flash 5
Open start circuit. Module has detected Y or Y1, and current in the R winding
CODE 6
of the compressor and no current in the S winding of the compressor for 2
Red Flash 6
seconds.
Open run circuit. Module has detected Y or Y1, and current in the S winding
CODE 7
of the compressor and no current in the R winding of the compressor for 2
Red Flash 7
seconds.
CODE 8
Welded contactor. Module has detected line currents in R and S windings, and
Yellow Flash 8
Y or Y1 is at 0 Vac for 15 seconds.
CODE 9
Low voltage. Module has detected a 24 Vac supply voltage below 17 Vac ±1
Yellow Flash 9
Vac for 2 seconds.
CODE 10
Over current protection. PROT terminal has above a 2A input for more than
Red Flash 10
40 milliseconds.
Phase Monitor Protection
If the chiller/heater fails to power up, eliminate
electrical phase issues by inspecting the phase monitor
device located in the power distribution panel.
When all voltages are acceptable and the phase
sequence is correct the output relay is energized and
the LED glows green. Under-voltages and unbalanced
voltages must be sensed for a continuous trip delay
period before the relay de-energizes. Reset is automatic
upon correction of the fault condition. The output relay
will not energize if a fault condition is sensed as power
is applied. The LED flashes red during the trip delay,
then glows red when the output de-energizes. The LED
flashes green/red if phase reversal is sensed.
Table 16. LED phase monitor diagnostic codes
LED Display
ARTC-SVX005B-EN
Indication
Glowing green: All voltages
are acceptable and phase
sequence is correct.
Flashing red: Trip delay prior
to de-energizing. Glowing red:
Output has been de-energized
upon fault detection.
C C h h i i l l l l e e r r / / H H e e a a t t e e r r T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g
event of an alarm. The alarm history is accessed by
pressing the alarm log key. See the following table.
Lockout Level
N/A
N/A
4x consecutive,
10x total
4x consecutive,
10 total
10x consecutive
4x consecutive,
10x total
1 occurrence
1 occurrence
N/A
N/A
1 occurrence
Table 16. LED phase monitor diagnostic codes
(continued)
LED Display
If the phase monitor fails to energize (the LED glows
red) check wiring of all three phases, voltage, and
phase sequence. If phase sequence is incorrect, the
LED flashes green/red. To correct this, swap any two
line voltage connections at the mounting socket. No
further adjustment should be required.
Lockout
Indication
N/A
N/A
Red:Flash 2
Red:Flash 3
Red:Flash 4
Red:Flash 5
Red:Flash 6
Red:Flash 7
N/A
N/A
Red:Flash 10
Indication
Flashing red and green: Phase
reversal is detected.
No power to phase monitor.
65
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