1. Introduction
This manual provides essential information for the proper installation, operation, maintenance, and troubleshooting of the Trane SWT1696 Reverse Flow Switch. This device is designed for use in HVAC systems to monitor and control fluid flow, ensuring system efficiency and safety. Please read this manual thoroughly before installation or operation.
2. Safety Information
WARNING: Risk of electric shock. Disconnect power before servicing.
- Installation and servicing must be performed by qualified personnel only.
- Adhere to all local and national electrical codes.
- Ensure the system is depressurized and cooled before working on any components.
- Wear appropriate personal protective equipment (PPE).
- Do not operate the switch outside its specified operating parameters.
3. Setup and Installation
The Trane SWT1696 Reverse Flow Switch is designed for integration into existing HVAC fluid systems. Proper installation is crucial for accurate operation.
3.1 Mounting
Mount the switch in a location that allows for easy access for wiring and future maintenance. Ensure the mounting position is stable and free from excessive vibration. The switch should be installed in a section of the pipe where flow is consistent and not subject to turbulence caused by nearby elbows or valves.
Figure 1: Trane SWT1696 Reverse Flow Switch. This image shows the compact design of the switch, typically featuring a sensor probe and electrical connections for integration into an HVAC system.
3.2 Wiring
Connect the switch according to the system's electrical schematic and local codes. Ensure all connections are secure and properly insulated. The switch typically requires a power supply and provides a signal output to the control system indicating flow status. Refer to the specific wiring diagram provided with your HVAC system for exact connections.
- Verify power is OFF before making any electrical connections.
- Use appropriate gauge wiring for the application.
- Ensure proper grounding.
4. Operating Instructions
The Trane SWT1696 Reverse Flow Switch operates automatically once installed and integrated into the control system. Its primary function is to detect the presence or absence of flow, or a change in flow direction, and signal this status to the main control unit.
- Upon system startup, the switch will initialize and begin monitoring flow.
- The switch is designed to activate (or deactivate) at specific flow conditions, indicated by its operational parameters (e.g., 140Op 130Cl).
- Monitor the HVAC control panel for indications of flow status as reported by the switch.
5. Maintenance
The Trane SWT1696 Reverse Flow Switch is designed for reliable operation with minimal maintenance. However, periodic inspection is recommended to ensure continued performance.
5.1 Routine Checks
- Annually: Inspect the switch for any signs of physical damage, corrosion, or loose connections.
- Periodically: Verify the switch's functionality by observing its response to changes in fluid flow (if safely possible within the system's operational parameters).
- Ensure the area around the switch is clean and free from debris that could impede its function or cause overheating.
5.2 Cleaning
If the switch's sensing element is exposed to the fluid, it may accumulate deposits over time. If cleaning is necessary, ensure the system is shut down and depressurized. Use a soft cloth and a mild, non-abrasive cleaner. Avoid harsh chemicals that could damage the sensor materials.
6. Troubleshooting
If the Trane SWT1696 Reverse Flow Switch is not functioning as expected, consult the following troubleshooting guide. For issues not listed here, contact Trane technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Switch not activating/deactivating | No flow or insufficient flow; Incorrect wiring; Faulty switch. | Verify system flow; Check all wiring connections; Test switch functionality (if possible, with appropriate tools). |
| Inconsistent readings | Air in the system; Sensor fouling; Turbulent flow at sensor location. | Bleed air from the system; Clean sensor (see Maintenance); Relocate switch to a less turbulent section of pipe. |
| No power to switch | Blown fuse/tripped breaker; Loose power connection. | Check and replace fuse or reset breaker; Secure power connections. |
7. Specifications
| Parameter | Value |
|---|---|
| Model Number | SWT1696 |
| Brand | Trane |
| Type | Reverse Flow Switch |
| Operating Parameters | 140Op 130Cl (Operational and Closing Points) |
| ASIN | B00QW2PYWY |
| Manufacturer | Trane |
| Date First Available | December 11, 2014 |
8. Warranty Information
Trane products are manufactured to high-quality standards. This product is covered by Trane's standard limited warranty. Please refer to the official Trane warranty documentation provided at the time of purchase or visit the official Trane website for detailed terms and conditions regarding coverage, duration, and claims procedures. Keep your proof of purchase for warranty validation.
9. Customer Support
For technical assistance, replacement parts, or further information regarding the Trane SWT1696 Reverse Flow Switch, please contact Trane customer support. You can find contact details, including phone numbers and online support resources, on the official Trane website (www.trane.com).
When contacting support, please have your product model number (SWT1696) and any relevant system information ready to expedite assistance.
