Trane Blower Coil Air Handler BCHE018DAA10A2

Disconnect all electric power, including remote disconnects before servicing.

Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized.

Verify that no power is present with a voltmeter.

Inspect fan motors for excessive vibration.

Inspect fan motors for excessive temperature.

Note any unusual findings or conditions during inspection.

Confirm that the device is disassociated

Verify reference tables for disassociation

Set the rotary address switch of the new device to match the address of the remaining sensor or receiver

Is power removed from the remaining device?

Did the association between the new and remaining devices occur automatically?

Push the Test button on the WZS sensor

Check LED5 on the sensor for battery strength indication

Push the Test button on the WDS sensor

Check the display for battery life expectancy symbol

Disconnect all electrical power to the unit

Wear appropriate personal protective equipment (PPE)

Use a soft brush to remove loose debris from both sides of the coil

Install a block-off to prevent spray from going through the coil and into a dry section of the unit and/or system ductwork

Disconnect all electric power, including remote disconnects, before servicing.

Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized.

Inspect fan sections for the following issues

If evidence of microbial growth is found, identify and remedy the cause immediately.

Wear appropriate personal protective equipment.