Power Supply Precautions; Wiring Diagram - Contemporary Controls BASstat Series User Manual

Bacnet communicating thermostat for multi-stage heating/cooling/ventilation

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3.3. Power Supply Precautions

Internally, the BASstat utilizes a half-wave rectifier and can share the same AC power source

with other half-wave rectified devices. Sharing AC power with full-wave rectified devices is NOT

recommended. AC power sources that power several half-wave devices have a common

secondary connection called COMMON, LO, or GROUND. Connect the HOT side of the

secondary to the 24 VAC high side input on the BASstat and the LO side to 24 VAC common.

WARNING: Devices powered from a common AC source could be damaged if a mix of half-

swave and full-wave rectified devices are both present. If you are not sure of the type of rectifier

used by another device, do not share the AC source with it.

Wiring: 14 to 22 AWG wires or 1.5mm2 wires

UM-15090000-AA8

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