Trane Baysens019c Manual

Away from direct sunlight, supply air registers, exterior doors, or heat-producing appliances. 2. Wiring Connections

Overrides the programmed schedule to maintain a single temperature indefinitely. 3. Programming and Operation Instructions

It was an older sensor, a Combined Sensor with a setpoint adjustment and an LCD display. Elias hadn't worked on this specific revision in years. He knew the newer S series, but the 019C was a different beast. He needed to know if the thermistor inside was reading correctly or if the logic board had fried.

Users and technicians frequently cite its "trusted engineering standards," noting it is built for long-lasting performance in industrial and commercial settings. Programming: trane baysens019c manual

Press the or Program button to enter programming mode. Select the day(s) you wish to program using the Day key.

You can set up distinct Occupied (daytime) and Unoccupied (nighttime/weekend) settings. Navigate to the . Set Occupied Start/Stop Times. Set Unoccupied Start/Stop Times. 4. Troubleshooting and Error Codes BAYSENS019C

After verifying all wiring is correct, turn on unit power. The ZSM will start in the Normal Run State using factory default settings. Away from direct sunlight, supply air registers, exterior

He read 150k Ohms. The sensor was failing—reading a temperature that wasn't there.

Some earlier‑production units of the BAYSENS019C did not include a battery backup. If the unit has a battery holder, a CR2032 is used for clock backup only—the sensor draws its primary operating power from the 24 VAC supply lines.

: You can temporarily bypass a programmed schedule by using the up/down temperature keys. The override typically lasts for a minimum of 2 hours before reverting to the schedule. Digital Display He knew the newer S series, but the

: The BAYSENS019C requires specific terminal connections based on your unit type (CV or HP). Use the official installer's guide for detailed wiring diagrams.

The BAYSENS019C allows for complex scheduling to suit business hours. Setting the Clock Press the key.

: Provides diagnostic information and system status. If a fault occurs, it may display specific error codes like SOP 004.00 , which indicates an indoor temperature sensor fault. Installation and Technical Specs Compatibility

: Press the up/down keys to change the temperature manually. The sensor will typically hold this "Temporary Hold" for 2 hours before returning to its programmed schedule.