Why Ice Machines Make A Lot Less Ice Than They Are Suppose To
Ice machines make less ice than they claim to. They are rated for perfect operating conditions and the manufacturer gets to round the numbers up. A name brand machine officially rated at 1000 lbs a day actually makes 980 under perfect conditions and only 730 in a hot restaurant kitchen. That's when it is brand new! A dirty condenser or evaporator can lower it even more.
Follow this link to learn how salesman can deceptively use this to make a sale.
Keep reading to learn why this happens.
There is no such thing as cold. Cold doesn't exist. What we call cold is actually an absence of heat. That is the fundamental concept of all refrigeration. An ice machine does not put cold into water to make ice. It takes heat out. Anything above - 460 degrees Fahrenheit has heat in it.
The heat in the water is transferred to the refrigerant (Freon) in the ice maker. The heat is then rejected from the refrigerant into the air and the cycle is repeated. This is called the refrigeration cycle.
Feel the warm air coming out of the machine. You are feeling the heat from the water plus a little from the compressor. Ice machines do not put cold into the water, they take heat out.
There Are 3 Important Things To Remember About The Movement Of Heat Through Ice Makers
1) The colder the water, the easier it is to make ice. There is less heat to remove.
2) The cooler the surrounding air, the easier it is to reject heat to it.
3) So ice makers work best with cool water in a cool place. Simple.
The heat travels from the water to the ice machine refrigerant to the air. The removal of heat from the water causes the ice to form. We can keep following the heat. The heat goes from the air to the air conditioning refrigerant to the air outside. It's all the same principles.
An ice maker is more efficient with cooler air and water so it makes more ice. It is less efficient with hotter air and water so it makes less ice. The machines are rated based on perfect conditions that do not exist in restaurants. If you choose a machine based on how much ice it can make on the hottest day you will have one that will always be able to get the job done.
If you already have one that is too small you have several options. You can replace it or add a second machine. You can buy ice as needed. The simplest and most economical solution is to maximize the production of the machine you have.
5 Ways to Get Ice Making Machine to Make More Ice
1 Keep the surrounding air cool as possible
2 Keep the incoming water cool as possible
3 Don't let the bin fill up and cut the machine off
4 Keep the condenser coils clean
5 Keep the evaporator clean
In Depth Article About Increasing Ice Production
How Ice Maker Salesmen Can Lie To You To Make The Sale
Before buying an ice making machine, find out how the ratings are deceptive and can be used to sell you the wrong ice machine. A retired refrigeration technician spills the beans.