6 / 20
VAV
Unit Controller
Without Motor
VAV Unit Controller
VAV unit controller (EVCB) with communicating room
thermostat (TRL)
EVCBVAV Unit Controllers
Controller (EVCB)
•
Built-in actuator, 70 in.lb. (select models)
•
On board differential pressure sensor (select models)
•
Simple air balancing and commissioning via thermostat
•
Automatically sets operation mode to pressure dependent or
independent based on the presence of air flow
•
Configurable PI (Proportional-Integral) function
•
Independent, configurable proportional control band and
dead band per ramp
•
Selectable internal or external temperature sensor (10KΩ)
•
Thermostat with on-board CO 2 sensor or external CO 2
sensor with integrated logic
•
Changeover by contact or external temperature sensor
•
Potentiometer feedback for increased precision of actuator
position (select models)
•
Real time clock (RTC) with 24-hour backup
•
BACnet MS/TP or Modbus communication (selectable)
Room Thermostat (TRL)
•
Backlit LCD with simple icon and text driven menus
•
Built-in, self-calibrating, non-dispersive infrared (NDIR) CO 2
sensor (select models)
•
Select thermostat’s default display
•
BACnet service port via on-board mini USB connector
•
Selectable Fahrenheit or Celsius scale
•
Manual night set back or no occupancy override
•
Multi level lockable access menu
•
3-wire connection to controllers
EVCB14NIT0S
0
Indep.
-
-
EVCB14NIT2S
2
Indep.
-
-
EVCB14NIT4S
4
Indep.
-
Yes
EVCB14NDT4S
4
Dep.
-
Yes
EVCB14NIT0SF
0
Indep.
Yes
-
EVCB14NIT4SF
4
Indep.
Yes
Yes
Model
TRIACs Pressure
Type
Feedback
Fan
Powered
Box
TRL54
3X3
Temperature
TRL24
2X4
Temperature
TRLG24
Temp. / CO 2
TRLH24
Temp / %RH
TRLHG24
Temp / %RH / CO2
Model
Type
Sensor
DI2 AI2
BO4 AO2
BAC Mod
Inputs
Outputs
Communication
2
Digital*
2
Analog*
Pressure Sensor
(select models)
Up to
4
TRIACs
2
Analog*
BACnet
MS/TP
Modbus
RTU Slave
Room T-Stat
3 Wires
*Configurable
24
Vac
Communicating Thermostat
EVCB14NIT4X
4
Indep.
-
External
Model
TRIACs Pressure
Type
Feedback Motor
nep t r on i c . com
Nowwith
CO2
