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hi,
dear friends, can u pls let me know from where to where i have to consider primary pump head and secondary pump head, what will be the loop for these pumps, i mean i have ahu in the floor...

thank you very much for ur guidance, i have one more question pls let me know the concept of primary pump and secondary pump. primary pump is controlling from where to where. whether primary pump...

dear friends, please let me know what type of flow switches / make i shall use for my 2 trane chillers with 180tr capacity each and where i should install it pls guide me.

you can do one thing is divide the 40000btu by 12000 so it is around 3.5tr and you can select 4.5tr capacity AC