VMA1930 VAV Controller Installation Guide
Application
The VMA1930 equipment controllers are designed
for Variable Air Volume (VAV) applications that
communicate over BACnet
®
/IP networks. These
Variable Air Volume Modular Assembly (VMA)
controllers feature combinations of an integral
digital pressure sensor (DPT), a damper actuator,
and a 32-bit microprocessor. The controllers' small
package size facilitates quick field installation and
efficient use of space without compromising high-
tech control performance. The VMA1930 controllers
include an integral real-time clock, which enables
the controllers to monitor and control schedules,
calendars, and trends, and operate for extended
periods of time as stand-alone controllers when
offline from the
Metasys
®
system network. These
VMA controllers connect easily to the wired and
wireless network sensors for zone and discharge air
temperature sensing.
The
Metasys
system Field Equipment Controllers
(FEC) family controllers and network sensors
communicate using the BACnet protocol. The
BACnet protocol is a standard for ANSI, ASHRAE,
and the International Standards Organization (ISO)
for building controls. VMA1930 Field Controllers
are BACnet Testing Laboratories (BTL) listed and
certified BACnet Advanced Application Controllers
(B-AACs).
North American emissions
compliance
United States
This equipment has been tested and found to
comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference when this equipment
is operated in a commercial environment. This
equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications.
Operation of this equipment in a residential area
may cause harmful interference, in which case the
users will be required to correct the interference at
their own expense.
Canada
This Class (A) digital apparatus meets all the
requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la Classe (A) respecte
toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
Installation
Observe the following guidelines when installing a
VMA1930 controller:
• Transport the controller in the original container
to minimize vibration and shock damage to the
controller.
• Do not drop the controller or subject it to physical
shock.
Parts included
• One VMA1930 controller with removable SA bus
and power terminal blocks
• One installation instructions sheet
• One self-drilling No. 10 x 25 mm (1 in.) screw
Materials and special tools needed
• Several 6 mm (1/4 in.) female spade terminals for
input and output wiring, and crimping tool for
spade mounted terminal blocks
• Small, straight-blade screwdriver for securing
wires in the terminal blocks, can also be used to
adjust controller numbers
• 8 mm (5/16 in.) wrench or 10 mm (3/8 in.) 12-point
socket to tighten the square coupler bolt
• Several shims or washers to mount the VMA
• Power screwdriver, 100 mm (4 in.) extension
socket, punch, drill, and 3.5 mm (9/64 in.) drill bits
to mount the VMA
• Pliers to open and close the damper
*2410143853C*
Part No. 24-10143-853 Rev. C
2019-11-21
(barcode for factory use only)
MS-VMA1930-0