Johnson Controls AP-VMA1420-0   (Need More Information? Click Here to visit the Johnson Controls website.)

The Johnson Controls AP-VMA1420-0 variable air Volume Modular Assembly (VMA) is a configurable digital controller, pressure sensor, and/or actuator housed in one pre-assembled unit. Applications include single duct and pressure independent cooling systems.

Features

The Johnson Controls AP-VMA1420-0 integrated module includes a digital controller, pressure sensor, and/or actuator, and is preassembled to reduce installation time. The enhanced actuator ensures a quick response stepper motor that drives the damper from full open to close in 30 seconds or less. Automated Commissioning utilizes Proportional Adaptive (P-Adaptive) and Pattern Recognition Adaptive Control (PRAC) for continuous loop tuning.  Advanced diagnostics offer actuator motor duty cycle, VAV box flow test, damper stall detection, starved box detection, and other diagnostics. Network communications enables integration into a Building Automation System (BAS). Easy configuration provides simple question/answer software format for quick selection of project-specific applications. Software addressing allows remote addressing and identification from a configuration tool.

Applications

Systems	single duct, dual duct, fan-powered (series or parallel), pressure independent, supply/exhaust
Terminal Box Heating	floating 3-wire actuator, proportional valve actuator, normally open or closed valve, 1-3 stage electric
Supplemental Heating	floating 3-wire valve actuator, proportional valve actuator, normally open or closed valve, single-stage electric
Cooling	stepper motor damper actuator
Floating/3-wire Incremental	external damper and valve
Proportional actuator	External damper and valve
Fan-powered terminal box	parallel, temp based, parallel, airflow setpoint, series, on/off control, series, proportional control
Lighting	On/Off in relation to occupancy mode
Modes	OCC/TEMP OCC/SANDBY/OFF/SHUTDOWN/WINDOW

Product Specifications

Supply Voltage	20-30 VAC at 50 or 60 Hz
Optional Fuse Current	2.0 amperes
Power Consumption	10 VA maximum (Relay and valve requirements not included.)
Ambient Operating Conditions	0 to 50°C (32 to 122°F)
Ambient Storage Conditions	-40 to 70°C (-40 to 158°F)
Terminations	6.3 mm (1/4 in.) spade lugs (Communication has screw terminals.)
Serial Interfaces	N2 Bus and Zone Bus. N2 Controller Addressing DIP switch set (1-253) Addresses 254 and 255 are reserved. Software addressable with HVAC PRO software, Release 7.02 or later.
Communications Bus	N2 between VMA and NCM or N30. Zone Bus between VMA and room sensor (8-pin phone jack or wire to spade lugs or optional plug-on terminals) (Not available when the TE-7720 RF Receiver is applied).
Mounting	One screw (included) mounts the VMA1420 to the VAV box. One screw attaches the damper shaft to the actuator, 8 mm (5/16 in.) square head set screw with 44 N-m (389.4 lb-in.) of axial holding power for up to 13 mm (1/2 in.) round damper shafts. Minimum damper shaft length is 44.5 mm (1-3/4 in.).
Housing	Plastic housing for controller/actuator with UL94-5VB Plenum Flammability Rating
Dimensions (L x W x H)	153 x 102 x 102 mm (6 x 4 x 4 in.)
Actuator Torque	4 N-m (35 lb-in) minimum
Shipping Weight	13.1 kg (29 lb) for a box of ten, 1.3 kg (2.8 lb) each
Electrical Inputs	Analog Inputs: Nickel, silicon, platinum (1 K ohm), or NTC (2.25 K) RTD room sensors, 1.6 K setpoint potentiometer (2-wire) Voltage input for 0-10 VDC (humidity or pressure sensor) Binary Inputs: Dry contacts Input configurations vary based on model type.
Velocity Pressure	Velocity Pressure for 374 Pascal (0-1.5 in. W.C.)
Outputs	Binary outputs, 24 VAC triac switched, 25-500 mA loads Stepper drive, 2 to 767 steps per second (23,000 step resolution) Analog output, 0-10 VDC @ 10 mA maximum
Standards Compliance	CSA 22.2 No. 205, UL 916, UL 864 (UUKL), UL 94-5VB, FCC Part 15, Subpart B, Class A and B, C-tick Australia/NZ, AS/NZS 4251.1, CISPR 22, Class B, CE Directive (89/336/EEC, EN50081-1, EN50082-2) Industrial, IEEE 472, IEEE518, IEEE587 Category A/B, IEC-950, IEC 801-2, -3, -4, -6, -7, -8, ANSI C62.41 A/B