Trane Arctic Thermafit AXM, Инструкция по установке, эксплуатации и обслуживанию

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ARTC-SVX006A-EN 57
Table 12. KRIWAN flash codes
Error Category 1
st
Flashing Sequence (red LED) 2
nd
Flashing Sequence (orange
LED)
Error Status
Motor temperature
1
1 Nominal response temperature of
motor was exceeded
2 Switch off due to blocked rotor
3 Time delay active after motor
temperature default
4 Sensor fault motor PTC
5 Time delay active after blocked rotor
General 3
1 Module undervoltage
5 Time delay active, category general
Phase Monitor Protection
If the heat pump 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 13. LED phase monitor diagnostic codes
LED Display 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.
Flashing red and green: Phase
reversal is detected.
No power to phase monitor.
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.
Symptoms and Solutions
This section lists the most common troubleshooting
symptoms and the closest potential solution for each. The
“References” column will list a reference within this manual,
if applicable. This is not an exhaustive listing of all potential
causes or resolutions, but represents the best direction in
which to initiate a solution.
Note: An anti-short cycle timer is included in the primary
microprocessor controller to prevent the
compressors from starting until the delay has
elapsed. The microprocessor also provides
minimum compressor run timers. Take these fixed
timer parameters into consideration when
conducting a fault isolation process.
1. Symptom: Compressor will not start
Possible Causes Potential Solutions
Temperature control not in demand Check setpoint
Flow switch open due to low water flow Check flow switch functionality; Check flow rate
Low pressure, high pressure sensor open
Low/high pressure event has occurred; Obstructed BPHX or coil; Check fan
settings and functionality; Check Sensor functionality
Heat Pump Troubleshooting