Johnson Controls VMA 1410

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Technical Bulletin

Issue Date February 28, 2006

Variable Air Volume Modular Assembly (VMA) 1400

Series Overview and Engineering Guidelines

VMA1400 Series Overview and Engineering Guidelines ...................2

Introduction......................................................................................................... 2

Key Concepts...................................................................................................... 3

VMA1400 Series Models...................................................................................................3

VAV System......................................................................................................................6

Definition of Terms............................................................................................................9

Room Sensor Placement ................................................................................................10

Pressure Independence..................................................................................................10

VMA Airflow Rate............................................................................................................10

Power Source..................................................................................................................11

N2 Bus Rules ..................................................................................................................12

Inputs and Outputs..........................................................................................................13

Zone Bus.........................................................................................................................14

CablePRO.......................................................................................................................15

CVTPRO .........................................................................................................................15

Related Documentation...................................................................................................16

Application Examples......................................................................................................17

Reference Information.....................................................................................................26

Specifications..................................................................................................................27

Detailed Procedures......................................................................................... 32

Determining VAV Box Requirements..............................................................................32

Establishing the Room Schedule ....................................................................................32

Developing the Bill of Material and Placing Orders.........................................................33

Configuring the VMA.......................................................................................................35

Code No. LIT-6363120

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Johnson Controls VMA 1410 Specifications

General

Model	VMA 1410
Type	Variable Air Volume Modular Assembly
Frequency	50/60 Hz
Communication Protocol	BACnet MS/TP
Humidity Range	10% to 90% RH non-condensing
Enclosure Rating	IP20
Input Voltage	24 VAC
Inputs	2 Universal Inputs
Outputs	2 Analog Outputs, 2 Binary Outputs
Operating Temperature	-40°F to 158°F (-40°C to 70°C)