Honeywell TrueZONE HZ311, HZ322, HZ432 Manual 

Also see for TrueZONE HZ311: Installation guide

Contents

Honeywell TrueZONE HZ311, HZ322, HZ432 Manual  Manual pdf 11 page image

Zoning System Design Manual11 70-2321—03commercIal ZonIngZoning for commercial buildings makes just as much sense as zoning for residential buildings: in a large officebuilding, each office suite could have its own zone, giving each occupant the ability to set the heat/cool to his orher comfort.Zone DesignWhile a typical residential building might have a system of 5 tons or less, commercial buildings typically havemuch larger (up to 20 ton) HVAC units. A commercial zoning system will likely have more zones, and the ductsmight be bigger, but the basic principles of design and the devices used to implement zoning remain the same.Bypass DamperThe bypass damper must be a motorized damper such as the MARD, controlled by a static pressure control.Another option is a Honeywell D2 or D3 rectangular damper operated by an ML6161B2024 actuator and mountedwith a 32007205-001 bracket. The MARD or D2/D3 damper is then wired to a static pressure control (SPC) tomodulate the bypass air.Zone DamperZone dampers must be able to handle the higher airflow and static pressure of a larger HVAC system. Use aMARD or RRD for round ducts; for rectangular ducts, use a commercial rectangular damper such as a HoneywellD2 or D3 with the same motor and bracket listed above.

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