VMA1615/1626/1628/1630 VAV Controllers
Installation Guide
Applications
The VMA1615/1626/1628/1630 programmable digital
controllers are designed for Variable Air Volume
(VAV) applications that communicate through the
BACnet
®
MS/TP or N2 protocol. 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 VMA1626 has an actuator
but does not contain a DPT. The VMA1628 model
has a DPT but does not contain an actuator. The
controllers' small package size facilitates quick
field installation and efficient use of space without
compromising high-tech control performance. These
VMA controllers connect easily to the wired and
wireless network sensors for zone and discharge air
temperature sensing.
Switchable Communications
protocols
The
Metasys
®
system Field Equipment Controller
(FEC) family controllers and network sensors
communicate using the standard BACnet
®
protocol,
based on the ANSI/ASHRAE 135-2008. The BACnet
protocol is a standard for ANSI, ASHRAE, and the
International Standards Organization (ISO) for
building controls.
VMA16, VMA18 controllers are BTL-listed as BACnet
Application Specific Controllers (B-ASCs).
The Controller Configuration Tool (CCT) can be used
to switch the Field Bus communications protocol in
supported FEC, FAC, and VMA controllers to be either
the standard BACnet MS/TP or the N2 protocol. All
new controllers use either BACnet MS/TP as the
default communications protocol, or BACnet/IP.
Switchable communications protocols in the MS/
TP models provide a cost-effective upgrade and
modernization path for customers with existing N2
controllers.
The N2-capable FEC Family Controllers can be used
as functional replacements for legacy N2 controllers.
The N2-capable FEC Family Controllers:
• have the input and output (I/O) quantities and
characteristics of the FEC Family Controllers
• must be programmed with CCT, which has similar,
but not identical programming capabilities as
HVACPro, GX9100, GPL, and other legacy tools
• support SA Bus devices
• support WRZ wireless sensors from the controller
using the WRZ-7860 receiver (most models)
• are available in Buy American versions (most
models)
The N2-capable FEC family controllers:
• do not support Zone Bus (for example, TMZ
sensors and M100 actuators) or XT-Bus (System
91) devices (for example, XT, XTM, and XP
modules)
• do not support a wireless connection to the N2
bus
• do not support NxE passthrough
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.
*2410143217K*
Part No. 24-10143-217 Rev. K
2019-10-18
(
barcode f
or factory use only)
MS-VMA1615,MS-VMA1626,MS-VMA
1628,MS-VMA1630
