METASYS BUILDING MANAGEMENT SYSTEM
PROGRAMMABLE CONTROLLERS
METASYS CONTROLLERS
VMA16 ( 32-BIT ), VMA18 , AND VMA1930
VAV MODULAR ASSEMBLY CONTROLLER SERIES
VMA16s ( 32-bit ) and VMA18s are programmable digital controllers tailored for VAV applications that can be switched between MS / TP and N2 communications protocols . When they are used as MS / TP devices , they communicate through the BACnet ® MS / TP protocol . In N2 mode , they can be used as replacements for legacy Johnson Controls ® controllers .
Note : When a VMA1400 Series controller is replaced on an existing N2 network , the VMA18 Series controller is the preferred device because certain existing sensor models can be reused . VMA18 controllers are intended for use as functional replacements for the VMA1410 , VMA1415 , VMA1420 , and VMA1440 controllers only . VMA18 controllers support fieldselectable BACnet MS / TP or N2 protocols . VMA18 controllers support the N2 Open Communications protocol at a maximum rate of 9600 baud .
The VMA1930 programmable controller uses BACnet / IP networking for higher speed communication with the Controller Configuration Tool ( CCT ) and improved bandwidth . This gives you more flexibility in choosing controllers for your site ’ s specific needs .
The VMA1615 , VMA1630 , VMA1832 , and VMA1930 ( 32-bit ) controllers feature an integral digital differential pressure transducer ( DPT ), an integral damper actuator , and a 32-bit microprocessor . The controllers ’ small package size facilitates quick field installation and efficient use of space , while not compromising high-tech control performance . These controllers easily adapt NS Series Network Sensors for zone and discharge air temperature sensing .
The VMA1626 controller is shipped with an actuator but without a differential pressure transducer ( DPT ), making it well suited for commercial zoning applications or for pressure-dependent VAV box applications where no DPT is required .
The VMA1656 controller is shipped without a differential pressure transducer but with an integrated actuator and ball valve linkage . These controllers are for use on the Johnson Controls VG-1000 1 / 2 - 1 inch valves and needs to be used primarily as a replacement for the VMA assembly of the VG-1000 Series Smart Valve product . The smart valve product line is ideal for chilled beam applications .
The VMA1628 includes a DPT but does not have an actuator . Without an actuator , this controller is well suited for controlling large VAV boxes that require more than 4 N • m of torque .
These features make the VMA16 ( 32-bit ) controllers the product of choice for VAV systems . The wide variety of network sensor models provides options for measuring and displaying zone temperature , occupancy detection , duct temperature , zone humidity and dewpoint determination , carbon dioxide ( CO2 ) level , setpoint adjustments , VAV box fan speed control , and discharge air temperatures .
The VMA18 models are designed to be functional replacements for the VMA14xx Series Variable Air Volume Modular Assembly controllers . They contain a sensor actuator bus port and accessories well suited for replacing VMA14xx controllers .
FEATURES
• Standard BACnet Protocol — Provides interoperability with other Building Automation System ( BAS ) products that use the widely accepted BACnet standard .
• Standard hardware and software platform — Uses a common hardware design throughout the family line to support standardized wiring practices and installation workflows ; also uses a common software design to
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European Products Catalogue 2021