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Dear All I'm using a single speed fan and a thermostat for cooling system connected to a multi-zone building. thermostat turns on the fan whenever the inside temperature is higher than 20 C. I'm going to use variable speed fan to have the same 20 C temperature and but lower energy consumption. Using the variable speed fan, how it should be controlled to have same 20 C temperature in building ? I mean that when it should work at part load and when it works at full load and how ut us implemented?
Thank you
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Ahmad abbasianzadeh
Solar energy Researcher
Harrisburg, Pensylvania
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