This Brivis 4 bank heat exchanger (PN: BS80016922) is a direct replacement part designed to keep ducted gas heaters running safely and efficiently. It's a critical component for any Brivis ducted heating system, especially heading into a chilly Australian winter.

I've seen plenty of old heat exchangers crack over the years, leading to safety concerns and inefficient operation – getting this replaced quickly is key for safe and reliable heating.

Best For

• Licensed Gas Fitters
• HVAC Service Technicians
• Maintenance Teams for Residential Heating

Compatibility

This heat exchanger is specifically designed for Brivis HX B15 ducted gas heater models. It's a genuine Brivis part, ensuring a perfect fit and reliable operation with your existing system. Always cross-reference the Brivis Part Number (80016922 or B016922) to confirm compatibility with your unit before installation. If you're running a different model, check fittings and specs before ordering.

Features

• Genuine Brivis part, ensuring exact fit and performance.
• Designed for Brivis HX B15 4 bank ducted gas heaters.
• Restores heating efficiency and maintains system safety.
• Built to manufacturer specifications for reliable, long-term operation.

What's in the Box

• 1 x Brivis Heat Exchanger 4 Bank HX B15 (PN: BS80016922)

Using It on the Job

When replacing a heat exchanger, safety is paramount. Here's a general workflow:

1. Ensure the gas supply and electrical power to the heater are isolated and locked out. Confirm no residual gas pressure remains.
2. Follow Brivis service manuals for safe disassembly of the heater cabinet and removal of the old heat exchanger. Note all connections.
3. Carefully install the new Brivis 4 Bank HX B15, ensuring all flue connections, burner components, and wiring are reattached correctly and securely.
4. Reassemble the heater, then leak test all gas connections with an approved leak detector. Verify no leaks are present before proceeding.
5. Purge the gas lines, then restore power and gas supply. Perform combustion analysis to confirm safe and efficient operation according to manufacturer specifications.
6. Complete a full operational check of the heater, including temperature rise, fan operation, and safety limits, before handing back to the customer.

Limitations & Safety Notes

• Installation and servicing of gas appliances must be carried out by a currently licensed gas fitter, as per Australian regulations.
• Only for use with compatible Brivis HX B15 ducted gas heater models. Do not attempt to modify for other systems.
• Always follow manufacturer's instructions and relevant Australian Standards (AS/NZS 5601.1 for gas installations) during installation and commissioning.
• Regular inspection of heat exchangers is crucial for detecting cracks or corrosion that could lead to carbon monoxide leaks.

When you're pulling an old heat exchanger out, take photos of how all the components and sensors are connected. It'll save you a headache when putting the new one in, especially getting the flue and burner setup just right for proper combustion.

Pair With

Pair with a good combustion analyser to dial in the burner settings, and don't forget your gas leak detector for final checks. You might also consider replacing other common wear parts like ignition modules or fan limit switches if they're showing their age.