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Hi Nans Try with ASME A17.1 "Safety Code for Elevators and Escalators", Section 2.7 of this code "Machine Rooms and Machinery Spaces". There is a previus trhead about this point, months ago I asked exactly the same. Modern elevators uses microprocessors controls, the temperature inside the...

Hello. I need Cv values for two and three ways, proportional, temperature controlled valves. I have some information but is very old, is just a little table that I fund in old specifications. I am working in impovements in a water chilled air conditioning system, we have to replace the old R12...

Thank you very much. I think that the split A/C system will be the right choice. But I don´t know if is recommended to install the condenser unit in an underground gallery, I have to ask the A/C equipment manufacturer if there is no problem with this alternative.

Hello. We are designing ventilation, 10 AC/h, in our elevators machine room. The reccomended choice would be use air conditioning, but we have some problems to conditioning two machines rooms, because they´ll be located in underground galleries. The air inside this galleries will be at 38°C DB...

Hi. Wich are the requirements for air temperature and humidity to use microprocessor controls in elevators?. Our elevators will work in a industrial plant, with high ambient temperature (up to 40°C or 104°F) and very high humidity. Air conditioning will be the recommended choice, but we have...