Install Instructions

Input sources
The SimplyVAV controllers require specific sensors to measure room temperature, airflow,
and discharge air temperature. All sensors are automatically detected and the programming
is automatically set up for the sensors.
l SimplyVAV digital wall sensors
l STE-6000 series thermistor temperature sensors
l Discharge air temperature sensor
l Airflow sensors and pickups
SimplyVAV digital wall sensors—The SimplyVAV digital wall sensors include a room
temperature sensor, a digital display, and a push button interface for entering setpoints and
configuring the controllers. If a SimplyVAV digital wall sensor is detected, the sensor's
temperature is mapped to the Space Temperature Reference value object as the
temperature input value. See the topic BACnet objects on page 68 for additional information
on value objects.
The model BAC-8201 SimplyVAV digital wall sensor includes also a motion sensor to detect
when the zone is temporary unoccupied. This is described in the topic Occupancy sequence
on page 52.
STE-6000 series thermistor temperature sensors—There are three models of the
STE-6000 series sensors compatible with the SimplyVAV controllers. If one of the three
sensors is detected, the sensor's temperature is mapped to the Space Temperature
Reference value object as the temperature input value. See the topic BACnet objects on
page 68 for additional information on value objects.
Models STE-6014 and STE-6017 also include a dial for adjusting the setpoint . If either of
these two sensors is detected, the dial position sets the Active setpoint a few degrees
above or below the Occupied setpoint.
The STE-6017 includes a button that when pushed will override the unoccupied state. This
is described in the topic Occupancy sequence on page 52.
Discharge air temperature sensor—The DAT sensor is an optional Type-III, 10 kΩ
thermistor and is required for VAV heating applications. If the controller detects that this
sensor is connected, then the controller will use discharge air temperature to determine
when to change between heating and cooling. The DAT sensor input is used also to control
reheat. See the topics Discharge Air Temperature (DAT) limiting on page 56 and Changeover
on page 55.
Airflow sensors and pickups—VAV airflow is calculated by measuring the high and low
duct pressures with the built-in airflow sensor which is connected to airflow pickup tubes.
The high and low pressure measurements along with the K-factor of the VAV terminal unit
are used to calculate the airflow through the VAV unit.
Occupancy sequence
A SimplyVAV controller is designed to operate as a stand-alone controller and determine
occupancy based only on the availability of primary airflow and motion in the zone. The
controller can be in any one of the following occupancy states.
Section 7: Sequences of operation KMC Controls, Inc.
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