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  1. jjm1340

    Multi Zone System Requirements

    Thank You All.
  2. jjm1340

    Multi Zone System Requirements

    Yes, but I am limited by existing electrical service. Trying to keep HP to lowest possible
  3. jjm1340

    Multi Zone System Requirements

    Thanks. We'll see what happens. It will not be the first time I propose something "innovative" to this AHJ.
  4. jjm1340

    Multi Zone System Requirements

    It is actually LH 1500/0.1 cause the storage is incidental. But the pump is required for the Residential portion 4th floor due to insufficient 25% margin. The AHJ is not flexible. So you see no code problems with having two zones in this way. The AHJ is telling me that a single pump for...
  5. jjm1340

    Multi Zone System Requirements

    I have a four story building with residential use on 1 thru 4 and incidental storage in the basement. The system is supply by the local utility. Due to local peculiarities of the water distribution system the city requires a 33% margin on pressure for all systems in the area. I have...

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