38
Maintenance
The unit must be checked on a routine basis to ensure performance. Routine check is the best way to reduce
downtime and waste. The following needs to be checked on a routine basis:
Note:
1. The preceding maintenance plan is for reference only. The maintenance plan may vary based on region.
2. ● indicates items to be checked by customers; ▲ indicates items to be checked by professional
technicians.
Items
Monthly
Quarterly
Once half
a year
Once a year
If necessary
1. Compressor
Performance appraisal; whether
there is abnormal sound
●
Whether wires are securely
connected
●
Whether the working current is
abnormal (fluctuation: 10%)
▲
Discharge air temperature of the
compressor
▲
Check the oil level
▲
Check the color of the lubricant
▲
2. Controller
Check parameter settings
▲
Check protective device
▲
Delay protector
▲
Phase order protector
▲
High/low pressure switch
▲
Differential water pressure
switch/water flow switch
▲
Overload protector
▲
Protector against extreme
temperature of discharged air
▲
3. Tube in tube heat exchanger
Check the water quality
●
Clean the plate heat exchanger
▲
Seasonal protection measures
(anti-freeze in winter)
▲
4. Fin heat exchanger
Clean the fin heat exchanger
▲
5. Water tank
●
6. Others
Whether the Y-shaped filter
needs to be cleaned or replaced
●
Whether bolts have loosened
●
