Braemar Heater Pressure Switch 80Pa

This Braemar 80Pa air pressure switch is an essential spare part for maintaining your ducted gas heater. It keeps an eye on the flue gas path, ensuring safe operation by detecting blockages or fan issues before the burner fires up.

We've all seen heaters shut down prematurely on a cold Melbourne morning because of a finicky pressure switch, so having a reliable replacement like this genuine Braemar component on hand is just good practice.

Best For

• HVAC service technicians
• Gas appliance repairers
• Competent DIY homeowners maintaining their Braemar heater

Compatibility

This pressure switch is specifically designed for Braemar ducted gas heaters that require an 80Pa pressure rating. The manufacturer part number SY651590 (also listed as Seeley PN: 651590) confirms direct compatibility with relevant Braemar models. If you're running a different model, check fittings and specs before ordering.

Features

• Direct replacement for specific Braemar ducted gas heaters.
• Set to an 80Pa operating threshold for accurate flue sensing.
• Ensures safe ignition by verifying correct airflow and exhaust function.
• Genuine Braemar component for reliable performance and fit.

Technical Specifications

What's in the Box

• 1 x Braemar 80Pa Air Pressure Switch (SY651590)

Using It on the Job

1. Always isolate power to the heater at the main switchboard and perform a lockout/tagout procedure before commencing any work.
2. Locate the existing pressure switch, noting its orientation and hose connections. Carefully disconnect the silicone sensing hoses and electrical terminals.
3. Remove the old switch and install the new Braemar SY651590 pressure switch in its place, ensuring it's securely mounted.
4. Reconnect the sensing hoses correctly and firmly, then reattach the electrical terminals.
5. Restore power, then initiate a heating cycle to confirm the new switch allows the burner to fire and operate without fault. Check for any error codes on the wall controller.
6. Record the replacement details in the unit's service log.

Limitations & Safety Notes

• Only for use with compatible Braemar ducted gas heaters as specified by the 80Pa rating and part number.
• Installation and testing of gas appliances should only be performed by a licensed gas fitter in accordance with AS/NZS 5601.1.
• Always follow the heater manufacturer's installation and service instructions.
• Do not bypass or modify the pressure switch; it is a critical safety device.

Tradie Pro Tip: When replacing these, always inspect the silicone sensing hoses for cracks or blockages. A faulty hose can give you the same symptoms as a bad switch, and it's an easy check while you're in there.

Pair With

Pair with general HVAC Shop tools, such as digital manometers for testing differential pressures, and other Braemar or ducted gas heater spare parts for comprehensive maintenance.