By Grant Laidlaw
We answer a question on how hot gas defrost works for an ice maker, looking at evaporator defrost options in general.
We look at some of the relevant sections of SANS 10147 to see what you need to keep in mind when building plant- and cold rooms.
In the previous issue, we looked at safety and the need for filtration. We now move on to the procedural side, types of filters and identification.
A basic how-to guide for HVAC filter maintenance in South Africa: what do you need to know to get the job done?
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