Johnson Controls VMA 1410 Overview And Engineering Manuallines page 5

VMA1400 Series Overview and Engineering Guidelines Technical Bulletin
VMA Features (Cont.)
Commissioning
Balancing Tool with Automatic
Pickup Gain Calculation
Hardware
24 Volts Alternating Current (VAC)
Isolation Built-in
Multiple VMAs per 100 VA
Transformer
Isolated N2, Binary Outputs, and
24 VAC
Ability to Drive Low Current Relays
Down to 25 milliampere (mA)
15 Bit Analog Input/12 Bit Analog
Output Resolution
Analog Input Jumpers Eliminated
Differential Pressure Transducer
Dead Ended Transducer
Stainless Steel Capacitive
Technology
Industry Accepted Flow
Measurement Accuracy
Temperature Sensors
Variety of Sensors
Temporary Occupied Button
Temporary Occupied Light-Emitting
Diode (LED)
LED Indicator for N2/Power
Physical
Small, One Piece Assembly:
VMA1410, VMA1420
152.4 x 101.6 x 101.6 mm
(6 x 4 x 4 in.)
VMA1430
152.4 x 101.6 x 82.6 mm
(6 x 4 x 3.25 in.)
Plenum Plastic Housing Rating
Removable I/O Screw Terminals
1410 1420 1430
Y Y Y
Y Y Y
Y Y Y
Y Y Y
N Y Y
AI Y Y
only
Y Y Y
Y Y Y
Y Y Y
Y Y Y
Y Y Y
Y Y Y
Y Y Y
Y Y Y
Y Y Y
Y Y Y
Y Y Y
Comments
HVAC PRO software (single duct
only) or VMA Balancing Tool
(VBT) software on Zone Bus
Eliminates 24 to 24 VAC
transformer and polarity concerns
Ten cooling only (VMA1410) or
14 VMA1430s. Reheat/fan unit
depends on valve/fan relays
Saves installed cost and improves
electrical noise rejection
Eliminates relay chatter
Provides improved control device
resolution
Reduces labor because all analog
inputs are preset
Requires no filters or maintenance
Provides improved stability
Provides stability below 1 m/s
(200 fpm)
Nickel, 1 K platinum, silicon,
2.25K NTC
On TE-6700, TE-7000 (Europe
only), and TMZ1600 Series room
sensors
On TE-6700, TE-7000 (Europe
only), or TMZ1600 for timed
override (Temporary Occupied)
Verifies N2 and power
connections
Reduces installation cost
Underwriters Laboratories®, Inc.
(UL) 94-5VB plenum flammability
eliminates metal box
Two or three position accessories
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