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  1. khatra

    New Chiller Design

    I would use 2-way control valve with VFD for the secondary pumps. Make sure the primary pump are constant flow.
  2. khatra

    enclosed parking garage heating

    I would use combination: make up air handler to temper supply air (may be set for 60 F) and exhaust fan for air pressure control. Also I will provide CO detection system for automatic ventilation control. Under normal mode: Outside air for ventilation can be reduced to .75cfm/SF and under...
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