Honeywell Gas Valve VK8105M5021 for Braemar & Brivis Heaters

This Honeywell gas valve is your go-to for fixing specific Braemar and Brivis ducted gas heaters. It's built tough for Australian conditions, ensuring your heater fires up reliably, especially when you need it most on a cold winter morning.

Getting this right means safe, consistent heating for your customers. You've seen those old valves play up, so having a genuine replacement ready makes the job a lot smoother.

Best For

• HVAC technicians working on ducted gas heating systems.
• Residential gas heater service and maintenance teams.
• Competent DIY owners maintaining specific Braemar or Brivis heaters.

Compatibility

This gas valve is designed as a direct replacement for specific Braemar and Brivis ducted gas heaters. It handles 24V operation and is configured strictly for Natural Gas (NG) systems. Always check your unit's specifications against these details.

• Brivis Part Numbers: 80021378, B021378
• Braemar Part Number: 640440

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

Features

• Direct replacement for specified Braemar and Brivis ducted gas heaters.
• Operates on a standard 24V power supply, common in residential HVAC systems.
• Specifically configured for Natural Gas (NG) applications only.
• Honeywell build quality, known for reliable and consistent gas flow control.

What's in the Box

• 1x Honeywell VK8105M5021 Gas Valve (24V, Natural Gas)

Using It on the Job

1. Always isolate power to the heating unit at the main switchboard and perform lockout/tagout procedures before starting work.
2. Shut off the main gas supply to the appliance before commencing any work on the gas train.
3. Disconnect all electrical wiring and carefully unmount the old gas valve, making sure to note all connections.
4. Install the new Honeywell VK8105M5021 valve, ensuring all gas connections are sealed correctly with appropriate thread sealant rated for gas.
5. Reconnect all electrical wiring, referencing the appliance's wiring diagram to ensure correct polarity and connections.
6. Slowly restore the gas supply, check all connections for leaks using an approved leak detection solution, then restore power and test heater operation.

Limitations & Safety Notes

• This valve is for Natural Gas (NG) systems only. Do not attempt to use with LPG or other gases without proper conversion and certification.
• Installation and servicing of gas appliances must be performed by a licenced gas fitter in Australia, as per local regulations and standards.
• Always follow the appliance manufacturer's instructions and all Australian standards and Safe Work guidance during installation and operation.
• Ensure thorough leak testing is conducted on all gas connections after installation.

When you're swapping one of these out, always snap a few photos of the wiring before you disconnect anything. It saves a lot of head-scratching during reassembly, especially on older units where the diagrams might be faded.

Pair With

Pair with a reliable gas leak detector and quality thread sealant to ensure a safe, secure installation. You might also want to check other components like the ignitor or flame sensor, as these often wear out around the same time.