An essential aspect of running a successful business is a reliable commercial air conditioning system. Until your HVAC system stops working, you might not know how much you rely on it.

If your air conditioner stops working, the problem is probably with the compressor. A multimeter is just one of the many instruments you’ll need to diagnose issues within your compressor. Voltage, electrical resistance, and current can all be gauged with the help of a multimeter.

In order to find the perfect person to help you, you need to first determine the root of the problem. There are three techniques to inspect the compressor in a commercial air conditioning system, and we’ll go through each of them here.

1. Oil Pressure and Discharge Oil Pressure Check:

Each commercial compressor has a unique optimal oil pressure range that is determined by the compressor’s size, type, and application. Due to normal wear and tear, the compressor will require more oil as time goes on. Because of this, regular oil checks are essential.

The pressure of the oil being discharged from the compressor is what is being monitored. Input oil pressure and crankcase oil pressure are added together to form the discharge pressure. The oil pressure at the point of discharge is read off a mechanical force gauge.

The pressure generated by the oil pump is known as “net oil pressure.” By deducting the oil pressure from the crankcase from the oil pressure at the engine’s discharge port, we may obtain the net oil pressure.

· Standard Operating Pressure:

The standard operating pressure for commercial compressors is 20 pounds per square inch (PSI). If your HVAC system is operating with less than 20 PSI of net oil pressure, you should immediately look into getting more oil. It could also indicate that the internal components have experienced significant wear and tear.

Compressors should have their pressure checked regularly as part of routine maintenance. When it’s time to add more oil or replace a part, the system alerts you.

2. Vibration bearings check:

Vibration from bearings could reduce the performance of your air conditioning and heating system. In your commercial compressor, bearing vibration could cause other components to vibrate and become unbalanced.

If you listen to the compressor carefully, you can pick up on any bearing vibrations. Compressor bearing vibration may be to blame if it creates a lot of noise despite being securely placed.

Get in touch with a www.socool.sg to have your device checked out. The technician at https://www.socool.sg/ will utilise a battery of sensors to check for and record any bearing vibration in your compressor. The diagnostic procedure pinpoints the nature and severity of the issue. The problem may be remedied by just replacing the bearings.

3. Electric Check:

Shutting off the HVAC system and giving it time to cool down before touching it is a good idea for everyone’s wellbeing. Identify the appropriate button or toggle to disable the air conditioner’s power source. If you can’t find the on/off switch, try the breaker box. Turn off the power to your floor or floor of the building.

· Wiring:

Check the compressor’s wiring for problems. Ensure there is no bleeding or cuts. Wiring damage, if present, could be the source of the problem. The compressor accepts power through electrical cables that attach to terminals on the device.

· Multimeter :

Check for any signs of burns or damage to the terminals. A multimeter should be used for further testing. A reliable electric current is measured by the multimeter.

Put your multimeter’s main dial into continuity mode. Electricity flow tests between terminals are possible in this setup. It’s likely that you have broken or otherwise damaged terminals if you’re not getting any readings.

· Terminals:

There are three terminals labelled “C,” “R,” and “S” on your compressor. What do these three words mean? Common, Run, and Start. The two most common pin colours for multimeters are red and black.

Make sure the red pin is in the C terminal and the black pin is in the S terminal. If the ohmmeter shows 30 or less, everything is fine. If the reading is more than 30 ohms, it may be a sign that your compressor is malfunctioning.

· Continuity Setting:

For the continuity setting, connect the red pin to terminal C and the black pin to terminal R. A resistance measurement of 30 ohms or less is preferable. Keep doing it until you get the desired result, each time with the red pin on the R terminal and the black pin on the S terminal.

If your compressor’s resistance is much higher than 30 ohms, you may be experiencing an overload. To be successful, your company requires efficient machinery. Compressors are no different than any other piece of machinery in that they need routine upkeep and inspections. The aforementioned inspection is a step in the right direction towards achieving greater HVAC efficiency.