Trane Blower Coil Air Handler BCHE018BAA10A2

Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing.

Verify with a CAT III or IV voltmeter rated per NFPA 70E that all capacitors have discharged.

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

Wait five minutes after power removal to ensure ECM motors' capacitors are discharged.

Unplug the motor to ensure no power request.

Ensure initial hookups to the CSTI and standard adapter board are made with the power off.

Avoid making or removing connections to motors or adapter boards while power is ON.

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

Read and understand all safety warnings before proceeding with maintenance.

Disconnect all electrical power including remote disconnects.

Discharge all energy storing devices such as capacitors.

Follow proper lockout/tagout procedures.

Observe unit for any change in running condition and unusual noise.

Disconnect all electric power, including remote disconnects

Follow proper lockout/tagout procedures

Verify that no power is present with a voltmeter

Adjust fan wheel set screws if necessary

Refer to Table 44 for recommendations and note any adjustments made

Disconnect all electrical power to the unit

Wear appropriate personal protective equipment and 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

Mix a high-quality coil cleaning detergent with water according to the manufacturer’s instructions

Is the detergent strongly alkaline after mixing (PH 8.5 or higher)?

Place the mixed solution in a garden pump-up sprayer or high-pressure sprayer

If a high pressure sprayer is to be used

Maintain minimum nozzle spray angle of 15 degrees