AP-VMA1420-0 Johnson Controls VMA
$1,250.00
Variable Air Volume Modular Assembly (VMA)
4 in stock
Johnson Controls AP-VMA1420-0 VAV Modular Assembly (VMA) – VMA 1400 Series
The AP-VMA1420-0 Johnson Controls Variable Air Volume Modular Assembly (VMA) configurable digital controller, pressure sensor, and/or actuator housed in one pre-assembled unit.
Product Overview
The AP-VMA1420-0 is a complete Variable Air Volume Modular Assembly (VMA) controller from Johnson Controls’ VMA 1400 Series. It integrates a VAV controller, actuator, and pressure sensor in a preassembled unit. This particular model supports cooling with reheat or fan-powered configurations. It’s designed for precision control in VAV systems in HVAC, offering reliable modulation, addressable communication, and flexible installation options.
Specifications
| Specification | Details |
|---|---|
| Brand / Model | Johnson Controls AP-VMA1420-0 |
| Series | VMA 1400 Series VAV Modular Assembly |
| Supported Applications | Cooling with reheat or fan-powered VAV boxes |
| Supply Voltage | 20-30 VAC, 50/60 Hz |
| Maximum Power Consumption | 10 VA (excluding relay and valve loads) |
| Optional Fuse Current Rating | 2.0 A for VMA1420 models |
| Actuator Torque | Minimum 4 N·m (≈ 35 lb-in) |
| Ambient Operating Temperature Range | 0 to 50 °C (32 to 122 °F) |
| Ambient Storage Temperature | –40 to +70 °C (–40 to +158 °F) |
| Mounting & Terminations | 6.3 mm (¼-inch) spade lugs for most terminations; communications ports use screw terminals |
| Communication Protocols | Supports N2 Bus and Zone Bus; addressable via DIP switches |
| Housing & Safety Ratings | Plastic housing; UL/94-5VB plenum flammability rating; indoor environment suitable |
| Weight & Dimensions | Approximate weight ~ 2.7 lbs; dimensions around 12 × 8 × 8 inches |
Features & Benefits
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Built-in pressure sensor and integrated actuator simplify installation and calibration
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Supports both cooling with reheat and fan-powered box configurations
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Addressable communications via N2 or Zone Bus provide flexibility in building automation integration
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Compact, pre-wired modular assembly reduces installation time and potential wiring errors
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Designed for reliability across wide temperature & humidity ranges
Applications
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VAV systems in commercial buildings where control over airflow and temperature is needed
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Reheat applications to maintain occupant comfort during variable load conditions
-
Fan-powered terminal boxes in multi-zone HVAC systems
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Retrofit or replacement of existing VMA controllers
Installation & Maintenance Notes
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Set communication address before or during mounting using DIP switches; consult control software for settings
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Mount controller so wiring is accessible; ensure proper alignment with damper shaft and use correct set-screw methods
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Provide clean supply voltage and avoid electrical noise on control wiring
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Periodic calibration, temperature verifications, and actuator feedback checks help ensure long-term performance
Related Products
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VMA1410-0 (cooling-only variant of the VMA 1400 series)
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VMA1430-0 (controller only, without internal actuator)
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VMA1440-0 (used in building zoning systems)
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Accessories such as screw terminal kits (2- or 3-position plugs)
-
Compatible room sensors and external actuator modules
| Weight | 4 lbs |
|---|---|
| Dimensions | 12 × 8 × 8 in |
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