VMA1400 Series Overview and Engineering Guidelines Technical Bulletin 3
Key Concepts
VMA1400 Series Models
VMA1410
VMA1420
VMA1430
VMA14xx
Figure 1: VMA1400 Series Models
The VMA is a configurable, integrated module that includes a VAV
controller and differential pressure sensor. The VMA1400 Series
includes three models:
VMA1410 (cooling only, includes actuator)
VMA1420 (cooling with reheat, includes actuator)
VMA1430 (controller and differential pressure sensor only for use
with an external incremental or proportional actuator)
Note: The VMA1400 Series also includes the VMA1440, which is
used exclusively as part of the Metasys Zoning Package. See the
Metasys Zoning Package Product Bulletin (LIT-639050) and the
Metasys Zoning Package Overview Technical Bulletin (LIT-639100)
for information on this specialized product.
The models are designed for pressure independent, single duct
(all VMA1400 Series models), and dual duct (VMA1420 and
1430 only) applications. The VMA1420 and 1430 models can be used
with parallel or series fan-powered boxes.
Note: The VMA1420 can be configured for the Metasys Zoning
Package application, but the internal pressure sensor can only be used
for monitoring purposes. Refer to the Metasys Zoning Package
Commissioning Technical Bulletin (LIT-639250).
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