Mastering Air Cooled Chiller Maintenance: The Power of Preventive Maintenance Checklists

This single thing was a game changer for me. it allowed me to look like a professional to every customer, kept me from missing things while on an air cooled chiller maintenance, and helped me become much more efficient at executing the work

At the end of the post there will be a free download that you can use on every chiller PM you go on.

Understanding the Importance of Preventive Maintenance Checklists When Maintaining Air Cooled Chillers.

Preventive maintenance checklists aren’t just about ticking boxes, and pencil whipping paperwork. They’re your lifeline to staying on top of your chiller game.
Think about it for a minute. If you service chillers every single day, and you are working on the same type of equipment over and over, it becomes mundain, and as a natural result, we get bored, and we run the risk of becomming complacent. 
Here’s why they matter:

Professionalism for the Customer: A well-documented maintenance process shows your clients that you mean business and care about quality service. In the chiller world, we are in constant competition to provide the best possible customer experience every single day we get up and throw the work boots on. Giving the customer a professional looking form communicates that you are a professional, and that you care about them. 

Ensures Nothing is Overlooked:
Like I said before, it’s easy to miss something when you are doing this day in and day out. Did i check those transducers today or yesterday? Did i remember to check the charge? Checklists ensure every component gets the attention it needs, and helps you provide a repeatable and consistent service to all of your customers 100% of the time.

Keeps You Organized:
They keep you on track, and help you stay organized so you can look back at what you did if a customer tries to accuse you of overlooking something. having something tangible that you can look back at in the future is extremely helpful.

Helps Your Memory:
Our memory is a finite resource. Every time we have to think of something, or have to remember something, a little bit of that finite resource is used up. If your anything like me, you probably struggle with remembering names and birthdays as it is.
It doesn’t seem like much, but if you do every single simple project from a checklist you no longer have to memorize those things, and instead of your brain purging the things you want to remember for air cooled chiller maintenance, you will slowly be able to remember more things, because you will no longer be trying to memorize the simple day to day tasks, allowing you to memorize the other things that are more important.

What Does A Good Maintenance Checklist Look Like?

A good checklist is made op of the following:

Operational Checks:

Verify the operation of the chiller unit and its controls.

Monitor temperature and pressure readings.

Ensure proper refrigerant levels.
Etc..

Mechanical Inspection:

Check the condition all of the fans, and bearings

Inspect the electrical connections for signs of wear or high heat.

Performance Testing:

Test the efficiency of the heat exchanger using the evaporator approach reading.

Monitor and record all operating data, so you can look back on it later.

Compare current performance data with historical data to spot potential issues, or flaws.

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