They are used to make off-peak ice for air conditioning. Chilled 25% ethylene gycol is circulated in the coils to freeze the water in the tanks. During the day time, the process is reversed so that heat from the AC heat exchangers goes back into the tanks.
This system saves electricity costs and chiller capacity. The facilities demand charge goes down and they also benefit from the cheaper off-peak rate.
The tank skids are 92" in diameter. Total height is around 94". Seven units will fit in a 53' box trailer with several feet to spare. Goto Calmac's website for more info.
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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