Observer TSTAT0101SC - Wiring Considerations

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but, multiple sensors may be used and averaged in some
applications. Averaging requires a special seriesparallel wir
ing method with a specific number of sensors. See Fig. 1. It
is also important to note the humidity sensor cannot be re
motely located, so do not locate the Observer Control in an
area where humidity sensing may not be accurate.
Fig. 1 – Remote Room Sensor – Parallel Wiring
Wiring Considerations
Ordinary thermostat wire is recommended. Use 22 AWG or
larger for normal wiring applications. Continuous wire lengths
over 100 ft. should use 20 AWG or larger.
NOTE: The communicating bus wiring only requires a
fourwire connection; however, it is good practice to run ther