The Metasys® system family of Field Equipment Controllers comprises a group of versatile field controllers designed to monitor, control, and integrate a wide variety of HVAC and other building equipment. IP controllers are BACnet® network-compliant field controllers that can communicate on the BACnet/IP protocol.
MS-VMA1930-0
Field VAV Controllers
8-point Bacnet/IP VAV Controller with integral actuator, integral DPT, 3 UI, 3 BO and 2 CO, 24 VAC, SA Bus
Features
- The FAC4911 and the VMA1930 communicate over the BACnet/IP protocol
- BACnet Testing Laboratories™ (BTL) listed ensures interoperability with other BTL-listed devices
- Auto-Tuned Control Loops reduce commissioning time and eliminate change-of-season re-commissioning
- Mobile Access Portal (MAP) gateway provides wireless mobile user interface to IP controllers improving daily operations
- FAC4911 model features an integral real time clock with on-board time schedules, calendars, trends and alarms
DescriptionIntegrated VAV controller
Point types3 UI + 3 BI+ 2 CO
Integrated Actuator, Flow SensorYes, Yes
Zone Sensor Input (on SA Bus*)Up to 4 NS Series Network Zone Sensors, Up to 9 WRZ sensors when using the ZFR or ZFR Pro Series wireless router configuration and up to 5 WRZ sensors when using the one-to-one WRZ-78xx wireless configuration
Supply Voltage24 VAC
Power Consumption10 VA typical, 14 VA maximum
Ambient Operating Conditions0 to 50°C (32 to 122°F)
ProcessorRX63N 32-bit Renesas microcontroller
Memory16 MB serial flash memory and 8 MB of SDRAM
TerminationsInputs/Outputs: 6.3 mm (1/4 in.) Spade Lugs. SA Bus and Supply Power: 4-Wire and 2-Wire Pluggable Screw Terminal Blocks
MountingMounts to damper shaft using single set screw and to duct with single mounting screw
Actuator Rating4 Nm (35 lb in.) minimum shaft length = 44 mm (1-3/4 in.)
