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VCCX2 Controller Technical Guide
E-BUS Digital Room Sensor
The ASM01819 E-BUS Digital Room Temperature Sensor can be
used to sense space temperature. The ASM01820 or ASM02221
E-BUS Digital Room Temperature Sensor can be used to sense
space temperature and humidity. The ASM02221 has no LCD
display or keypad. The sensor connects to the VCCX2 Controller
with the EBC E-BUS expansion cable. It can also be daisy-
chained with a CO
2
sensor for applications requiring both a wall
mounted CO
2
sensor and space temperature sensor.
The E-BUS Digital Room Sensor should be mounted on the
wall in an area that does not have drafts or is exposed to direct
sunlight. See Figure 8, this page for wiring details.
NOTE: If using multiple E-BUS Sensors or Modules, the
E-BUS Hub or Adapter Board may be required.
Figure 8: Figure 8: E-BUS Digital Room Sensor Wiring
WIRING
E-BUS Digital Room Sensor