VAV/VVT Zone Controller: DZNT-V104D, DZNT-104D, DZNT-V104T, DZNT-104T, DZNT-V112A, DZNT-112A

The Delta Zone Controller with Network Thermostat (DZNT) Variable Air Volume (VAV) Application Specific Controller product line is suitable for controlling nearly all basic VAV, fan powered VAV or Variable Volume and Temperature (VVT) sequences with choices of 3-stage digital reheat, tri-state with 2nd stage digital reheat or analog with 2nd stage digital reheat.Features include auto heat/cool changeover, digital time clock or motion sensor input, timed overrides for occupancy handling and configurable reverse acting digital reheat stages.The DZNT VAV products come with built-in field configurable VAV or VVT algorithms; they are not programmable with GCL+. Detailed description of the algorithms are provided in the Sequence of Operation document and in the FAQs.One improvement in this product is that the memory type used to hold the values of the AVs is no longer susceptible to burnout if a certain number of writes occurs. This means that any of the AV parameters can be changed dynamically without concern.