Trane Blower Coil Air Handler BCHE024DAA10A2

Choose method for removing nylon standoffs

Are the standoffs retained on the metal panel?

ESD Protection for VelociTach Motor Control Board

Use an ESD protection wrist-strap

Touch a grounded surface frequently to discharge static buildup

Replace connectors carefully onto the appropriate board

Is the green wire attached to the engine board white connector?

Initiate signal strength test by pressing the Test button on the sensor

Check signal strength indication on Models WZS

Observe LED1, LED2, and LED3 on the sensor for signal strength

Observe LED1, LED2, and LED3 on the receiver for signal strength

Check signal strength indication on Model WDS

Observe test symbols on the sensor display for signal strength

Observe LED1, LED2, and LED3 on the receiver for signal strength

Push the Test button on the WZS sensor

Record the LED5 indication for battery strength

Push the Test button on the WDS sensor

Describe the battery test symbol displayed

Ensure not to recharge the batteries.

Ensure not to hook up the sensor to a power supply.

Verify the battery type and source

Is the sensor not used for an extended period of time?

Choose an action if the sensor is not used for an extended period

Power up a receiver with a 24 V transformer (user supplied)

Associate the sensor to a receiver of the same model intended for the job

Place the receiver at the desired location

Place or hold the sensor at the desired location

Press the Test button (S5) on the sensor

Observe the signal strength as indicated by LEDs and display