Shenhai Explosion-Proof
Explosion-proof air conditioning is essential in industrial settings, primarily due to its explosion prevention capabilities, thus its prevalent use in factories. Like any machinery, explosion-proof air conditioners can encounter malfunctions. Addressing these issues effectively requires technical expertise. Let’s explore some common problems and maintenance tips to assist users.
Common Issues and Troubleshooting:
1. Delayed Start:
If the air conditioner doesn’t initiate within approximately 11 minutes, assess the indoor coil temperature and external conditions. Identifying and rectifying these factors often resolves the issue.
2. Silent Buzzer:
Should the buzzer fail to sound, inspect the transformer for any faults.
3. Outdoor Unit Power:
If the outdoor unit’s red light is on but it doesn’t activate, verify the communication between the indoor and outdoor units. Ensure the connecting wires are appropriate and check for any open circuits or shorts. If unresolved, consider replacing the outdoor unit controller.
4. Voltage Check:
For units operating at 220V, confirm the outdoor unit’s motherboard light and wiring integrity. If issues persist despite an active light, inspect the power module for loose connections or replace it, applying thermal paste evenly during the process.
5. Power Supply:
Confirm the outdoor unit receives 220V post-startup. If absent, reassess the connection between indoor and outdoor units.
6. Mainboard Connectivity:
Validate the correct arrangement of internal connections on the mainboard. Erroneous setups necessitate a replacement.
Maintenance Insights:
1. Exhaust Temperature:
Monitor the compressor’s exhaust temperature for over-protection. Normal resistance values of the temperature probe are indicative of good health.
2. Anti-Freeze Mechanism:
The indoor evaporator’s anti-freeze feature is crucial. Check the temperature probe and fan speed to prevent freezing and ensure a smooth operation.
3. Pressure Checks:
Over-protection due to low return air pressure can be diagnosed by checking for refrigerant leaks or damages.
4. High-Pressure Safeguard:
Ensure the compressor’s high-pressure protection is functional by inspecting feedback lines and power supply.
By understanding these common issues and maintenance procedures, users can ensure the safe and efficient operation of their explosion-proof air conditioning units, mitigating risks and ensuring a comfortable environment in hazardous settings.