This Bonaire Vulcan pressure switch is a crucial safety component for keeping ducted gas heaters running safely in Australian homes and businesses. It monitors the air pressure within the flue system, ensuring safe combustion and preventing hazards.

As anyone who's chased down an intermittent fault knows, a dodgy pressure switch can lead to frustrating call-backs and wasted time, so having a reliable replacement on hand is smart.

Best For

• HVAC service technicians replacing faulty components.
• Gas fitters performing repairs or routine maintenance on ducted gas heaters.
• Maintenance teams managing commercial Bonaire heating systems.

Compatibility

This Bonaire pressure switch is specifically designed for Bonaire MB3 and MB4 series ducted gas heaters. It carries the Bonaire part number 5431201SP and is set to operate at a nominal pressure of 130Pa.

If you're running a different model, check fittings and specs before ordering.

Features

• Specific Pressure Rating: Calibrated for 130Pa operation, ensuring correct system function for compatible units.
• Direct Fit: Designed as a direct replacement for Bonaire MB3 and MB4 ducted gas heaters.
• Genuine Bonaire Part: Ensures compatibility and reliable performance as per manufacturer specifications.
• Essential Safety Component: Plays a vital role in the safe operation of your heating system by monitoring flue gas pressure.

What's in the Box

• 1x Bonaire Vulcan Pressure Switch 130Pa (CT-PSWITCH-130)

Using It on the Job

1. Isolate Power: Always disconnect main power to the heater at the isolation switch or circuit breaker before commencing any work.
2. Access Switch: Locate and access the existing pressure switch within the heater cabinet, typically near the fan or flue system.
3. Disconnect & Remove: Carefully disconnect the electrical wiring and pressure tubing from the old switch. Note their positions for correct reinstallation. Remove the old switch.
4. Install New Switch: Mount the new Bonaire 130Pa pressure switch in the same location and reconnect the pressure tubing and electrical wiring securely.
5. Test Operation: Restore power to the heater and perform a functional test, observing burner ignition and system operation. Ensure the heater cycles on and off correctly and that there are no error codes.

Limitations & Safety Notes

• Work on gas appliances should only be performed by a licensed gas fitter in accordance with Australian standards.
• This pressure switch is specifically for Bonaire MB3 and MB4 units; using it on incompatible systems may lead to incorrect operation or safety issues.
• Always ensure power is isolated and locked out before working inside any heating appliance.
• Proper flue system operation is critical for the correct functioning of this switch; inspect flues for blockages.

When troubleshooting a pressure switch fault, don't just replace it without checking the flue. A partially blocked flue, a failing combustion fan, or even a dirty burner can cause low pressure, making a good switch look faulty. Always investigate the root cause first.

Pair With

Pair with other essential Bonaire heating spares like control boards, ignitors and sensors, or gas valves to ensure you have everything needed for comprehensive heater maintenance or repair.