Sungrow ST2752UX, Инструкция по эксплуатации и обслуживанию

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78
No. Alarm name Common causes Corrective measures
16
1# High
pressure lock
2# High
pressure lock
• Ambient
temperature is too
high.
• The high-voltage
switch wiring is
loose, or the cable is
damaged.
• The condenser is
seriously dirty and
clogged.
• There is a debris
blockage
in the
return air outlet.
• The fan is powered
off
or working
abnormally.
• Check ambient temperature.
• Tighten the electrical control
wiring or replace the cable.
• Clean the condenser.
• Clear the dirty blockage in front
of the unit's return air outlet.
• Repair or replace the fan when it
is not due to a power outage.
17
1# Low
voltage
lockout
2# Low
voltage
lockout
• Refrigerant leaks.
• The electronic
expansion valve is
working abnormally.
• Check for leaks and replenish
refrigerant after repairs.
• Replace the electronic
expansion valve.
Lock-type alarms (such as "1# high voltage lock") need to be manually cleared by
first powering off and then powering on the chiller, and other alarms are
automatically cleared when the current scene does not meet the alarm conditions.
The corrective measures mentioned above are for reference only. In case of any
fault, please contact the Customer Service Center of SUNGROW for professional
solutions.
5 Troubleshooting Operation & Maintenance Instruction