Engineered to exceed the specifications for a wide variety of Variable Air Volume (VAV) applications, the Reliable Controls® MACH-ProAir™ is a fully programmable BACnet Building Controller (B-BC) with numerous downloadable standard codes and flexible I/O options, all priced to meet a modest budget.

      

 

Dynamic Database

  • Shared memory allows creation of supported objects as required (up to memory max, or 128 object limit, whichever is reached first)
  • All models provide 32K of database memory and 28K of trend memory
  • Typical Object Configuration table shown below

Protocol

  • BACnet®
    – MS/TP (EIA-485)

Motor Control

  • Standard VAV and optimized motor control algorithms stored in firmware
  • Numerous standard application codes can be downloaded from the Reliable Controls® website
  • Optional user-programmed algorithm

Engineered Enhancements

  • Onboard End Of Line (EOL) switch with LED indication provides easy EOL configuration and visual verification
  • Remote addressing and software selectable inputs allow detailed configuration to be completed over the network
  • Robust MRAM non-volatile memory preserves trend data on power cycle
  • BACnet COV support provides optimized network sharing

Control-BASIC™ Programs

  • 8500 bytes programmable control strategy in a readable, BASIC-like language
  • 3200 bytes per program

Inputs

  • Universal ranges
  • Soft-selectable 0-10 VDC, 4-20 mA, thermistor / dry contact

Outputs

  • Universal ranges
  • 0-12 VDC or TRIAC, model dependent

Variables

  • Selectable standard and custom ranges, as well as fixed or program-driven values

PID Loops

  • Standard P, PI, or PID controllers for closed loop control

Single-Point Trend Logs

  • Samples created at polled, COV, or triggered intervals
  • Default 128 samples, configurable to allow trending over a longer period of time

Multipoint Trend Logs

  • Each Trend Log includes 8 points at polled or triggered intervals
  • Default 128 samples, configurable to allow trending over a longer period of time

Runtime Report

  • Records the total On time and the total number of transitions, as well as daily transitions for every binary point
  • A 50-sample runtime log is optional for each binary point

System Groups

  • Allows related points to be grouped onto one display
  • 80 points/group

Schedules

  • 7 On/Off times for each weekday or exception

Calendars

  • Days of the year designated as holidays

Arrays

  • Up to 128 elements in a one-dimensional array

Tables

  • For creating custom input ranges and Control-BASIC™ lookup tables

Custom Units

  • 8 analog engineering units
  • 8 binary engineering units
  • 8 multistate units with 8 states, 32-characters each

SMART-Net™ Port

  • Networks up to 4 SMART-Sensors™

32 Network In Points
16 Network Out Points

  • The total maximum number of writes and shares to other devices

Warranty

  • 5 years

Certification

Processor & Memory

  • 66 MHz, high-performance, 32-bit embedded microcontroller with onboard Flash memory
  • Controller database, values, log data, and configuration held in robust non-volatile memory
  • Operating System firmware easily updated at any time over the network

Supply Voltages

  • 24 VAC ±10% 32 VA max. 50/60 Hz
  • 24 VDC ±10% 12 W max.
    Note: MPA-12 requires 24 VAC only to support internal power to TRIACs

Communications

  • MS/TP
    • EIA-485 @ 76.8 Kbps max.
    • Auto-baud detection
  • SMART-Net™
    • 4 SMART-Sensors™ max.
    • RJ-11 port on all models
    • 4 wire terminal connector on all models

Universal Inputs

  • 12-bit A/D converter
  • Soft selectable: 0-10 VDC, 4-20 mA, thermistor/dry contact
  • Impedance:
    3M O on 0-10 VDC range
    250 O on 4-20 mA range
    20k O on thermistor range
  • Pulse counting up to 40 Hz (supports flow meters)
  • 24 VAC over-voltage protection

Universal Outputs

  • 10-bit D/A converter
  • Analog: 0-12 VDC
  • Binary: 0/12 VDC
  • Output power: 75 mA @ 12 VDC
  • 24 VAC over-voltage and short protection

TRIAC Outputs

  • 24 VAC @ 0.5 A

SETUP-Tool™

  • SETUP-Tool™ optional for MS/TP configuration

Dimensions

  • With actuator:
    22.7 cm L x 10.1 cm W x 7.6 cm H
    (8 15/16″ L x 3 15/16″ W x 3″ H)
  • Without actuator:
    19.9 cm L x 10.1 cm W x 7.6 cm H
    (7 13/16″ L x 3 15/16″ W x 3″ H)
  • With MPA-C:
    22.7 cm L x 15.0 cm W x 7.6 cm H
    (8 15/16″ L x 5 7/8″ W x 3″ H)

Mounting

  • Supplied with #8 screw
  • Compatible with 3/8″ to 1/2″ damper blade shaft

Weight

  • 0.7 kg (1.8 lb.)Ambient Limits
    • Operating: 0 ºC to 50 ºC
      (32 ºF to 122 ºF)
    • Shipping: -40 ºC to 60 ºC
      (-40 ºF to 140 ºF)
    • Humidity: 10% to 90%
      RH non-condensing

    Velocity Sensor

    • ?0?500 Pa (0?2? WC)
    • Maximum zero point accuracy 0.2 Pa
      (0.0008? WC)
    • Resolution: 0.133 Pa
      (0.0005? WC)
    • Span accuracy 3% of reading

    Actuator

    • Torque 45 in-lb (5 Nm)
    • Brushless D.C.

    Enclosure

    • ABS
    • UL94-5V