27
VCCX2 Controller Technical Guide
E-BUS Digital Room Sensor
The ASM01819 E-BUS Digital Room Temperature Sensor
can be used to monitor 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 E-BUS cable. It can also be daisy-
chained with a CO
2
sensor for applications requiring both a
wall-mounted CO
2
sensor and one of the three Digital Room
Temperature sensors.
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.
E-BUS cable
VCCX2 Controller
Figure 8: E-BUS Digital Room Sensor Wiring
WIRING
E-BUS Digital Room Sensor
