EVC - VAV Unit Controller

  • Fully configurable application specific controller
  • Native BACnet MS/TP or Modbus (selectable)
  • Connect to room thermostat via 3 wires
  • Up to 4 inputs and 6 outputs
  • Optional Auto Pressure Mode Detection
  • Combination VAV controller and thermostat
  • Run all control wires directly to TRO5404
  • Stand-alone
  • 24Vac
  • 2 inputs and 5 outputs
  • Combination VAV controller and thermostat
  • Run all control wires directly to TRO24
  • Stand-alone, Scheduler, or BACnet
  • 24Vac
  • 3 inputs and 6 outputs
BTL
  • EVC

    VAV Unit
    Controller Series

    VAV Unit Controller Series

  • TRO54

    3x3 VAV Wall
    Mount Controller

    3x3 VAV Wall Mount Controller

  • TRO24

    2x4 VAV Wall
    Mount Controller

    2x4 VAV Wall Mount Controller

EVC - VAV Unit Controller Series
Single Duct
Dual Duct
Fan Powered Box
What's New

CO2

Native BACnet or
Modbus (selectable)

BACnet
Scheduler

Change of
Value

Firmware
Upgradeable

Priority Array

Single Duct Overview

EVC Unit ControllerMounts on damper

TRL5 or TRL2 Room Thermostat3-wire connection to EVC

MultipleControl Wires
3 Wires

EVC Unit Controller

  • TO1Optional TRIAC
  • TO2Optional TRIAC
  • TO3Optional TRIAC
  • TO4Optional TRIAC
  • AO1Cooling / Heating
  • AO2Cooling / Heating
  • DI1Sensor input (on/off)
  • DI2Sensor input (on/off)
  • AI1Sensor input (analog)
  • AI2Sensor input (analog)
  • A+BACnet
  • B
  • T-STAT
  • LOOptional differential
  • HIPressure Sensor

Details

Controller Features
  • Field configured VAV algorithms
  • Built-in actuator 70in.lb [8Nm]
  • On board differential pressure sensor (pressure independent models)
  • Manual or automatic pressure mode selection (pressure independent models)
  • Configurable Inputs
    • 2 analog inputs
    • 2 digital inputs
  • Configurable Outputs
    • 2 analog outputs
    • Up to 4 TRIAC outputs
  • Configurable PI (Proportional-Integral) function
  • Simple air balancing and commissioning via thermostat
  • Independent,configurable proportional control band and dead band per ramp
  • Selectable internal or external temperature sensor (10KΩ)
  • Activate output with CO2 from thermostat (TRLG24 or TRLGH24) or external CO2 sensor.
  • Change over by contact or external temperature sensor
  • 24Vac operation
  • Removable, raising clamp, non-strip terminals
  • 24Vac thermal fuse for overheat protection
Thermostat Features
  • Backlit LCD with simple icon and text driven menus
  • Built-in, self-calibrating, non-dispersive infrared (NDIR) CO2 sensor with adjustable CO2 setpoint via menu (select models)
  • Built-in humidity sensor (select models)
  • Select default display (room temperature, humidity and/or CO2, temp setpoint, and system demand)
  • BACnet service port via on-board mini USB connector
  • Selectable Fahrenheit or Celsius scale
  • Manual night set back or no occupancy modes with manual override
  • Multi level lockable access menu
  • Simple 3-wire connection to controllers (PWR, COM, DATA)
Network Communication
  • BACnet MS/TP or Modbus RTU (selectable via menu)
  • Select MAC address via DIP switch or via network
BACnet MS/TP
  • MS/TP @9600, 19200, 38400 or 76800 bps
  • BACnet scheduler (up to 6 events)
  • Firmware upgradeable via network
  • COV (change of value)
  • Copy and broadcast configuration to other EFCB modules via menu or network
  • Automatic baud rate detection
  • Automatic device instance configuration
Modbus RTU
  • Modbus RTU @9600, 19200, 38400 or 57600 bps
  • RTU Slave, 8 bits (configurable parity and stop bits)

Models

Pricing

Controllers

Model# Price Type Triacs Feedback
EVCB14NIT0S $ 521 Indep. 0 -
EVCB14NIT2S $ 561 Indep. 2 -
EVCB14NIT4S* $ 602 Indep. 4 -
EVCB14NDT4S* $ 521 Dep. 4 -
EVCB14NIT0SF $ 553 Indep. 0 Yes
EVCB14NIT4SF* $ 633 Indep. 4 Yes
* Includes options for "fan powered box" applications

Controller (with external motor)

Model# Price Type Triacs Feedback
EVCB14NIT4X $ 502 Indep. 4 -
* This model supports only TRL54 and TRL24 thermostat models

Thermostats

Model# Price Type Temp Humidity CO2
TRL54 $ 102 3x3 - -
TRL24 $ 123 2x4 - -
TRLG24 $ 523 2x4 -
TRLH24 $ 263 2x4 -
TRLGH24 $ 663 2x4
Applications
  • Single duct, cooling only
  • Single duct cooling and/or heating
  • Up to 4 stage reheat and/or cool
  • Up to 4 On/Off heat and/or cool
  • Up to 4 time proportioned (TPM) heat or reheat
  • Up to 2 analog (0-10Vdc) reheat and/or cool
  • Up to 2 floating heat and/or cool
  • Pressure dependent or pressure independent
  • With or without auto changeover
  • Supply/exhaust (requires an additional EVC)
Dual Duct Overview

EVC Controller (Slave)Mounted on hot duct damper

EVC Controller (Master)Mounted on cold duct damper

TRL2 Room Thermostat3-wire connection to EVC

4 Wires
3 Wires
Multiple
Control Wires

Master/Slave can be configured to
mount on either cold or hot duct

EVC Controller (Slave)

  • AO2Pressure sensor output
  • AI1Motor Signal input
  • LODifferential pressure sensor
  • HI

EVC Controller (Master)

  • TO1Cooling / Heating (TRIAC)
  • TO2Cooling / Heating (TRIAC)
  • AO1Motor signal output
  • AO2Cooling / Heating (analog)
  • DI1Sensor input (on/off)
  • DI2Sensor input (on/off)
  • AI1Pressure sensor input
  • AI2sensor input (analog)
  • A+
    B-BACnet
  • T-STAT
  • LO
    HIDifferential pressure sensor

Details

Controller Features
  • Field configured VAV algorithms
  • Built-in actuator 70in. lb. [8Nm]
  • On board differential pressure sensor
  • Manual or automatic Pressure mode selection (pressure independant models)
  • Configurable Inputs
    • 2 analog inputs
    • 2 digital inputs
  • Configurable Outputs
    • 2 analog outputs
    • 2 TRIAC outputs
  • Configurable PI (Proportional-Integral) function
  • Simple air balancing and commissioning via thermostat
  • Activate output with CO2 from thermostat (TRLG24 or TRLGH24) or external CO2 sensor.
  • Independent, configurable proportional control band and dead band per ramp
  • Selectable internal or external temperature sensor (10KΩ)
  • 24Vac operation
  • Removable, raising clamp, non-strip terminals
  • 24Vac thermal fuse for overheat protection
Thermostat Features
  • Backlit LCD with simple icon and text driven menus
  • Built-in, self-calibrating, non-dispersive infrared (NDIR) CO2 sensor with adjustable CO2 setpoint via menu (select models)
  • Built-in humidity sensor (select models)
  • Select default display (room temperature, humidity and/or CO2, temp setpoint, and system demand)
  • BACnet service port via on-board mini USB connector
  • Selectable Fahrenheit or Celsius scale
  • Manual night set back or no occupancy modes with manual override
  • Multi level lockable access menu
  • Simple 3-wire connection to controllers (PWR, COM, DATA)
Network Communication
  • BACnet MS/TP or Modbus RTU (selectable via menu)
  • Select MAC address via DIP switch or via network
BACnet MS/TP
  • MS/TP @9600, 19200, 38400 or 76800 bps
  • BACnet scheduler (up to 6 events)
  • Firmware upgradeable via network
  • COV (change of value)
  • Copy and broadcast configuration to other EFCB modules via menu or network
  • Automatic baud rate detection
  • Automatic device instance configuration
Modbus RTU
  • Modbus RTU @9600, 19200, 38400 or 57600 bps
  • RTU Slave, 8 bits (configurable parity and stop bits)

Models

Dual Duct
Model List
Price
Type
EVCBM14NIT2S $ 638 Master Controller
EVCS14N $ 633 Slave Controller

Thermostats

Model# Price Type Temp Humidity CO2
TRL24 $ 123 2x4 - -
TRLG24 $ 523 2x4 -
TRLH24 $ 263 2x4 -
TRLGH24 $ 663 2x4
Applications
  • Dual duct
    • Cold and hot duct monitoring
    • Cold and discharge duct monitoring
    • Hot and discharge duct monitoring
    • Pressure independant only
Fan Powered Box Overview

EVC | VAV Unit ControllerMounts on damper

TRL5 or TRL2 Room Thermostat3-wire connection to EVC

EVC
MultipleControl Wires
3 Wires

EVC | VAV Unit Controller

  • TO1Optional TRIAC
  • TO2Optional TRIAC
  • TO3Optional TRIAC
  • TO4Optional TRIAC
  • AO1Cooling / Heating
  • AO2Fan
  • DI1Sensor input (on/off)
  • DI2Sensor input (on/off)
  • AI1Sensor input (analog)
  • AI2Sensor input (analog)
  • A+BACnet
  • B-
  • T-STAT
  • LODifferential pressure sensor
  • HI

Details

Controller Features
  • Field configured VAV algorithms
  • Built-in actuator 70in. lb. [8Nm]
  • On board differential pressure sensor
  • Manual or automatic pressure mode selection (pressure independant models)
  • Activate output with CO2 from thermostat (TRLG24 or TRLGH24) or external CO2 sensor.
  • Configurable Inputs
    • 2 analog inputs
    • 2 digital inputs
  • Configurable Outputs
    • 2 analog outputs
    • 4 TRIAC outputs
  • 24Vac operation
  • Removable, raising clamp, non-strip terminals
  • 24Vac thermal fuse for overheat protection
Thermostat Features
  • Backlit LCD with simple icon and text driven menus
  • Built-in, self-calibrating, non-dispersive infrared (NDIR) CO2 sensor with adjustable CO2 setpoint via menu (select models)
  • Built-in humidity sensor (select models)
  • Select default display (room temperature, humidity and/or CO2, temp setpoint, and system demand)
  • BACnet service port via on-board mini USB connector
  • Selectable Fahrenheit or Celsius scale
  • Manual night set back or no occupancy modes with manual override
  • Multi level lockable access menu
  • Simple 3-wire connection to controllers (PWR, COM, DATA)
Network Communication
  • BACnet MS/TP or Modbus RTU (selectable via menu)
  • Select MAC address via DIP switch or via network
BACnet MS/TP
  • MS/TP @9600, 19200, 38400 or 76800 bps
  • BACnet scheduler (up to 6 events)
  • Firmware upgradeable via network
  • COV (change of value)
  • Copy and broadcast configuration to other EFCB modules via menu or network
  • Automatic baud rate detection
  • Automatic device instance configuration
Modbus RTU
  • Modbus RTU @9600, 19200, 38400 or 57600 bps
  • RTU Slave, 8 bits (configurable parity and stop bits)

Models

Fan Powered Box

Controllers

Model# Price Type Triacs Feedback
EVCB14NIT4S $ 602 Indep. 4 -
EVCB14NDT4S $ 521 Dep. 4 -
EVCB14NIT4SF $ 633 Indep. 4 Yes

Thermostats

Model# Price Type Temp Humidity CO2
TRL54 $ 102 3x3 - -
TRL24 $ 123 2x4 - -
TRLG24 $ 523 2x4 -
TRLH24 $ 263 2x4 -
TRLGH24 $ 663 2x4
Applications
  • Fan Powered Box
    • Parallel or series
    • 1 speed or analog fan
  • Up to 4 stage reheat and/or cool
  • Up to 4 On/Off Heat and/or cool
  • Up to 4 time proportioned (TPM) heat or reheat
  • Up to 2 analog (0-10Vdc) Reheat and/or cool
  • Up to 2 floating heat and/or cool
Overview
EVC

TRO5404

  • AI1Ext. temp sensor
  • AI2NSB sensor
  • HR1Heating ramp 1
  • HR2Heating ramp 2(high demand)
  • CR1Cooling ramp
  • CR2Cooling ramp(high demand)
  • TPMTime proportional modulation
Also available with 3 digital outputs
TRO5404
Wall Mount Controller
Runs all control wires
directly to TRO5404

Details

Control Features
  • TRO5404
    • 4 analog outputs (2 heat / 2 cool)
    • 1 TPM output (time proportional modulation)
    • 2 sensor inputs
    • Selectable internal or external temperature sensor
    • Selectable proportional control band
  • TRO54P3X1
    • 2 analog outputs (1 heat / 1 cool)
    • 3 digital outputs
    • 2 sensor inputs
    • Selectable internal or external temperature sensor
    • Independent, configurable proportional control band and dead band per ramp
    • Changeover by contact or external sensor
Operational Features
  • 24Vac operation
  • Backlit LCD with simple icon and text driven menus
  • Selectable Fahrenheit or Celsius scale
  • "Night Set Back" mode with manual override
  • Multi level lockable access menu
  • Lockable setpoint

Models

Pricing
Model List
Price
Analog
outputs
TPM/Digital
outputs
Sensor
inputs
TRO5404 $ 163 4 1 TPM 2
TRO54P3X1 $ 174 2 3 Digital 2
Accessories
Model List
Price
Description
SCC80 $ 73 Changeover Sensor
Applications
  • Single duct, cooling only
  • Single duct cooling and/or heating
  • Up to 3 stage reheat and/or cool
  • Up to 3 On/Off Heat and/or cool
  • Up to 1 time proportioned (TPM) heat or reheat
  • Up to 4 analog (0-10Vdc) Reheat and/or cool
  • With or without auto changeover
Overview
EVC

TRO24

  • TO1TRIAC
  • TO2TRIAC
  • TO3TRIAC
  • TO4TRIAC
  • AO1Cooling / Heating
  • AO2Heating
  • AI1Sensor input (analog)
  • AI2Sensor input (analog)
  • AI3Sensor input (analog)
  • A+Optional
  • B-BACnet
TRO24
Wall Mount Controller
Runs all control wires
directly to TRO24

Details

Control Features
  • Configurable inputs and outputs
    • 4 TRIAC outputs (on/off, pulsed, or floating)
    • 2 analog outputs (0-10Vdc heat/cool)
    • 3 analog sensor inputs
  • Precise temperature control with programmable PI function
  • Selectable internal or external temperature sensor
  • Changeover by contact or external temperature sensor
  • Pressure sensor input with air flow program
  • Independent, configurable proportional control band and dead band per ramp
  • Anti-freeze protection
  • 7-day schedule (select model)
  • BACnet communication (select model)
Operational Features
  • 24Vac operation
  • Backlit LCD with simple icon and text driven menus
  • Selectable Fahrenheit or Celsius scale
  • "Night Set Back" mode with manual override
  • Multi level lockable access menu
  • Lockable setpoint
BACnet Features
  • BACnet® MS/TP @ 9600, 19200, 38400, or 76800bps
  • Selectable MAC address
  • Manual or automatic device instance configuration
  • Automatic Baud Rate Detection
  • Copy and broadcast configuration to other devices with same model #

Models

Stand-Alone Models
Model List
Price
Options
TRO24T4XYZ1 $ 312 -
TRO24T4XYZ3 $ 322 Scheduler
TRO24-EXT1 $ 312 Extended setpoint range
BACnet Models
Model List
Price
Options
TROB24T4XYZ1 $ 449 BACnet
Accessories
Model List
Price
Description
STC8 $ 55 Duct Mount Temperature Sensor
Applications
  • Single duct, cooling only
  • Single duct cooling and/or heating
  • Up to 4 stage reheat and/or cool
  • Up to 4 On/Off Heat and/or cool
  • Up to 4 time proportioned (TPM) heat or reheat
  • Up to 2 analog (0-10Vdc) Reheat and/or cool
  • Up to 2 floating heat and/or cool
  • Pressure dependent or pressure independent
  • With or without auto changeover