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VCCX2 Controller Technical Guide
Multiple Digital Space Sensors
Multiple (up to 10) digital space sensors can be connected to the
VCCX2 Controller in applications where multiple spaces (not
utilizing VAV boxes) could be served by a single unit. These
sensors can be either the E-BUS Digital Space Temperature
Sensor or the E-BUS Digital Combo Space Temperature/
Humidity Sensor.
The VCCX2 can be congured to use the worst case temperature
(high and low) to determine the cooling or heating mode of
operation or to average the space temperature values and use
that value to determine the mode of operation – in both cases
relative to the VCCX2 Space Temperature Setpoints. It would
use the highest humidity value relative to the Space Humidity
Setpoint to initiate Dehumidication Mode.
The digital sensors each need to be congured with unique
addresses (1 through 10) for this operation. In this arrangement,
only the sensor at address #1 can utilize the slide oset. All
push-button overrides on the sensors will function. Each sensor
can have its own calibration oset, if required.
SEQUENCE OF OPERATIONS
Ventilation Mode, Remote Contact Control, and Space Sensor Operation
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