VAA-VA75I24NMC

SKU: VAAVA75I24NMC

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Current Stock: 110

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Details

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Product Information


Optimizer VAV controller, BACnet IP, 24VAC, 7 UIOs, 5SSRs, replaceable air flow sensor, integrated 44 in-lbs (5 Nm) @ 90sec actuator with analog position feedback

Specifications


Integrated Actuator Specifications

Hardware

ParameterSpecification
CPUCrossover processor NXP I.MRT, Cortex M7
Memory capacity16MB QSPI Flash, 16MB SDRAM
BACnet® IP2 × RJ-45 ports, 10/100 Mbps with loop protection (RSTP supported).
BACnet® IP T1L2 × T1L ports with fail-safe, up to 10 Mbps, loop/daisy-chain supported.
Real Time Clock24-hour backup via supercapacitor; resets after 24h until BACnet® Time Sync.
Small LEDTransmission/Reception for Modbus and BACnet® (green).
Ring LEDStatus: normal, firmware download, broken sensor (green/yellow/red).


Integrated Actuator Specifications

Electrical

ParameterSpecification
Rated Input Voltage20–30 VAC; Class 2 transformer
BACnet® IP (CAT5/6)Nominal: 14.53 VA; Max: 30 VA
BACnet® MS/TPNominal: 15.33 VA; Max: 22 VA
BACnet® IP (T1L)Nominal: 8 VA (VA75T24NM); 6.5 VA (VA00TB24NM); Max: 25 VA / 14 VA
Frequency Range50/60 Hz
Internal Power SupplyHalf-wave rectifier

IMPORTANT: UL listed, limited to 100 VA maximum. Do not exceed rating.


Integrated Actuator Specifications

Sylk Supported Devices

Wall modulesTR42, TR42-H, TR42-CO2, TR71, TR75, TR120, TR100 (emulation), TR120-H (emulation)
SensorsTR40, TR40-H, TR40-CO2, TR50 (emulation), C7400S
ActuatorsMS3103, MS3105, MS3110 (5 Nm), MS3120 (10 Nm)
Non-Sylk™ actuatorsMS4103, MS4105, MS7403, MS7405, MS7503, MS7505, MS8103, MS8105

Integrated Actuator Specifications

Integrated Actuator Specifications

ParameterSpecification
Torque44 in-lbs (5 Nm)
Run Time108 s @ 50 Hz; 90 s @ 60 Hz
Mounting ShaftRound 8–16 mm; Square 6–13 mm
Shaft Length≥ 41 mm
Position Feedback via integrated potentiometer

Solid State Relay (SSR) Specifications

SSR switches supply voltage and work with VAC and VDC. VDC switching does not support synchronous motors.

Specifications:

  • 1.5 A constant; 3.5 A inrush for 0.1 sec per SSR output.
  • Optional jumper between 24 VAC supply and SSR input shared by all SSRs.

Integrated Actuator Specifications

Universal IO (Configurable as Analog Output or Universal Input)

AO0(2)–10 VDC direct/reverse with −3 mA to 20 mA or current output with 0(4)–20 mA.
UI
  • 0(2)–10 VDC direct/reverse or 0(4)–20 mA input. Sensors: 10K Ohm NTC Type II, 10K-3 NTC, 10K3A1, 20K Ohm NTC, PT100, PT1000, NI1000TK5000, NI1000 Class B DIN43760, PT3000, 100 Ohm–100K Ohm resistive (custom characteristic). Hardwired wall modules: set point, fan speed, override.
  • Dry contact binary input with direct/reverse.
  • All UI can be used for pulse input. Max frequency 100 Hz; duty cycle 5 ms ON / 5 ms OFF.

The controller has a single common terminal for every two Universal IOs, protecting against 24 VAC miswiring and short circuits.


Integrated Actuator Specifications

Communication Specifications

ParameterSpecification
Protocols SupportedBACnet® IP, BACnet® IP (T1L), BACnet® MS/TP, Sylk™, Modbus RTU (client only), BLE
Ethernet SpeedIP: 10/100 Mbps; T1L: 10 Mbps
IP VersionIPv4
Addressing ModesDynamic (DHCP, Link Local); Static
Sylk™ Bus2-wire, polarity-insensitive
BluetoothBLE, optional external antenna

Differential Pressure Sensor Specifications

Differential Pressure Sensor Specifications

ParameterSpecification
Range±2.0 in WC (±500 Pa), bi-directional
Span Accuracy±3% of reading
Field Replaceable SensorYes

Standards and Approvals

  • CE
  • BACnet® Advanced Application Controller (B-AAC)
  • UL916, Energy Management Equipment
  • FCC Part 15, Class A
  • EN 55022 Class A
  • EN 61000-3-2, 61000
  • Plenum Tested (UL2043)

Operational Environment Specifications

Operational Environment Specifications

ParameterSpecification
Storage Temperature−40 °F to 150 °F (−40 °C to 66 °C)
Operating Temperature32 °F to 122 °F (0 °C to 50 °C)
Humidity5%–95% RH, non-condensing
ProtectionIP20, NEMA 1
Pollution Degree2

IP (T1L) Communication Specifications

IP (T1L) Communication Specifications

ParameterSpecification
10BASE-T1L Standard802.3cg-2019
ConnectionScrew terminal, auto MDI-X T1L polarity detection and correction
Cable TypeSingle twisted pair balanced, 18AWG, shielded/unshielded. CAT5/6 UTP supported (1 pair). Belden 74040NH, 9841NH or equivalent. Specs: 300 V rating, 100 Ω ±20% impedance, max resistance 22 Ω/km, capacitance 40–60 nF/km.
DistanceUp to 3281 ft (1000 m) depending on cable characteristics
Transmission Rate10 Mbps