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  1. J

    Does an elevator machinery room need Title 24 compliance forms for Air-conditioning?

    Does an elevator machinery room still need a non res california title 24 compliance forms (NRCC-MCH-E)? I believe it falls in the category like a computer room wherein we provide HVAC based on the load of the hoisting motors.
  2. J

    horizontal air handler in ceiling plenum

    THe architect of our project wants a horizontal air handler that runs on gas heating and electric cooling. Our Convenience store load is at 12 ton and since we only have single phase we designed it as three- 4 ton units. I specified carrier Forced air furnace and matched evap coil and...
  3. J

    California Energy Code 140.4(n) requirement

    Hi, what is the usual workaround on a building with windows that have no autmatic closer which is required by code to have HVAC window interlocks. The HVAC system will be a new mini split LG, I ask the manufacturer but they can only provide a dry contact in the unit which can shut it off at a...
  4. J

    Heat Pump Discharge Air

    Hi Everyone, So we are redesigning an existing residential apt and we are providing a heat pump water heater because the house doesn't have gas and more so we can't pass t24 with an electric water heater. We all know that environmental air exhausts termination need to be 3ft away from openings...
  5. J

    fire hose cabinets vs fully sprinklered buildingl

    Any latest code reference I can refer to where it says that fully sprinklered buildings does not need fire hose cabinets. Were going on a debate with the owner.
  6. J

    Exisiting fire hose cabinet still required

    Is there any latest code section to refer to for this
  7. J

    Exisiting fire hose cabinet still required

    Is there any latest code section to refer to for this
  8. J

    REQUIRED COMPLIANCE FORMS IN COLORADO

    Hi I am a mech designer and Want to ask if there is such thing as title 24 forms counter part for colorado whic are for the energy compliance. Thanks!
  9. J

    Secondary Condensate drain termination

    1. An auxiliary drain pan with separate drain: an auxiliary condensate drain pan at least 1.5" deep and at least 3" larger than the length & width of the appliance beneath which it is placed, using corrosion-resistant material of adequate thickness (0.7mm galvanized metal or 1.6mm non-metallic...
  10. J

    CBC and CMC regarding fire dampers

    Hi guys, I am designing for a 3 storey apartment. My domestic kitchen hood needs exhaust and it will be through the roof using a fire rated shaft of 1 hr rating that will run from first to third floor. Now my domestic kitchen hood duct needs to penetrate this shaft at every floor, do I need...
  11. J

    Venting of duct enclosures.

    HI OUR CMC 510.7 SUGGESTS: 510.7 Interior Installations In buildings more than one story in height, and in one-story buildings where the roof-ceiling assembly is required to have a fire resistance rating, the ducts shall be enclosed in a continuous enclosure extending from the lowest fire-rated...
  12. J

    Venting of duct enclosures.

    510.7 Interior Installations In buildings more than one story in height, and in one-story buildings where the roof-ceiling assembly is required to have a fire resistance rating, the ducts shall be enclosed in a continuous enclosure extending from the lowest fire-rated ceiling or floor above the...
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