1. Power off the two-wire when installing devices. Leave 24 to 36 inches of slack on the two-wire to allow for easy installation and maintenance.
2. Using four screws and suitable wall anchors, mount the air temperature sensor to a vertical surface.
3. Connect the red and black wire from the sensor to the corresponding red and black wires on the two-wire. It is critical that polarity be maintained.
4. Use 3M™ DBR/Y-6 or equivalent moisture-resistant connectors for all wire connections in a valve box or those that are buried in soil.