Milli Axon Wall Top Assemblies User Guide

Content

Overview

Axon Wall Top Assemblies are wall-mounted tap assemblies designed for domestic, hotel, and commercial use. They are built for bath and shower applications where a clean wall-mounted finish is needed, and they suit installations that use a recessed breach and matching cartridge extension setup.

These assemblies are intended for licensed plumbing installation and are designed to provide reliable on/off control with a traditional wall-top handle layout. The hot-marked handle must be installed on the left-hand side from the user’s position.

Specifications

Recommended use: domestic, hotel, and commercial
Finish options: chrome handle with chrome back plate; chrome/black handle with chrome back plate; chrome/black handle with black back plate
Maximum continuous operating pressure: 500 kPa
Recommended working pressure: 150 to 500 kPa
Maximum continuous working temperature: 75°C
Suitable hot water storage tank: yes
Continuous flow hot water: refer to the manufacturer of the hot water system
Gravity feed: no
Standard: AS/NZS 3718
Installation requirement: licensed and registered trade person

Detailed description

Axon Wall Top Assemblies use a cartridge-based wall tap arrangement with a recessed breach interface, cartridge extension, bonnet, square plate, lock nut, and handle assembly. The cartridge screws into the recessed breach, then the cartridge extension links the spindle to the front controls. A red fibre washer and bonnet help secure the cartridge area, while the square plate and lock nut provide the visible wall finish and support.

The handle operation is a 3/4-turn style. The cartridge is turned clockwise until it stops at the OFF position, giving the user a clear end stop for shutoff. The hot-marked handle orientation is important for correct operation and must be positioned on the left side.

Safety

Water supply conditions must stay within the stated limits. If pressure is likely to exceed 550 kPa, an approved pressure-limiting device is required. If water temperature exceeds 75°C, an approved tempering valve must be fitted. The pipework should be flushed before installation to remove debris that could affect seals, movement, or long-term performance.

Installation must comply with AS3500.1 or the relevant local authority requirements. Failure to follow the listed water supply and installation rules may void the warranty. The product should also be handled carefully during installation to avoid over-tightening the cartridge or damaging the seats and sealing surfaces.

Setup and operation

Installation notes

Check that the seats in the recessed breach are clean, undamaged, and free from foreign material.
Confirm the wall-to-breach depth before choosing the cartridge extension.
Screw the cartridge into the recess until it seals with the seat, but do not over-tighten it.
Fit the correct cartridge extension to the spindle and fasten the screw.
Place the red fibre washer around the cartridge, then tighten the bonnet firmly with a spanner.
Fit the O-ring to the square plate, position the plate, and secure it with the lock nut.
Fit the nylon washer into the lock nut groove before final handle assembly.
Push the handle onto the cartridge extension, tighten the grub screw, and push in the screw cap.

Depth guidance

Maximum recess depth shown for the recessed breach: 17 mm
Cartridge extension selection is based on the measured distance from the recessed breach to the wall surface
Typical fitting ranges shown in the instructions include 0 to 12 mm, 12 to 17 mm, 18 mm, and 29 mm depending on the wall set-out

Operation

Once installed, the handle provides a 3/4-turn action to open and close the water flow. The OFF position is reached when the cartridge is turned clockwise until it stops. For best control and long service life, the assembly should be used within the recommended pressure range.

Cleaning and maintenance

Clean chrome-plated surfaces with mild liquid detergent or with soap and water. Avoid abrasive cleaners, cream cleaners, citrus-based products, steel wool, and scouring pads because they can damage the surface finish.

Using the wrong cleaning products can mark or dull the surface, and damage caused by improper care is not covered by the product warranty. Gentle routine cleaning will help preserve the appearance of the Axon Wall Top Assemblies.

Warranty

Damage caused by improper treatment or unsuitable cleaning products is not covered by warranty. Installation that does not follow the stated water pressure, temperature, flushing, and compliance requirements may also void warranty protection.

Pros & Cons

Pros: Suitable for domestic, hotel, and commercial projects.
Pros: Supports a clean wall-mounted tapware finish with multiple finish options.
Pros: Clear pressure and temperature limits make installation planning straightforward.
Pros: Simple 3/4-turn operation with a defined OFF stop.
Cons: Must be installed by licensed and registered trade people.
Cons: Requires careful depth matching and the correct cartridge extension.
Cons: Sensitive to abrasive cleaners and harsh treatment.

PDF

Faqs

How do I tell which cartridge extension size Axon Wall Top Assemblies need during installation?

The extension size depends on the distance from the recessed breach to the wall surface. The manual shows that a smaller gap uses one extension length, while a larger gap uses a different one, so measuring first is essential. If the breach seats are in good condition and the cartridge is seated correctly, the rest of the installation can be matched to that measured depth for proper alignment and handle fit.

Why must the hot-marked handle be installed on the left side of the Axon Wall Top Assemblies?

The hot-marked handle is positioned on the left when viewed from the user’s standing position so the tap operates in the correct left-right orientation. This matters for safe, intuitive use and to match the mixer’s designed plumbing layout. If the handles are reversed, the temperature direction can feel wrong and the installation may not comply with the instructions. Always confirm the left-side placement before tightening the final parts.

What should I check before screwing the cartridge into the recessed breach?

Before installing the cartridge, make sure the seats in the recessed breach are clean, undamaged, and free of any foreign material. The manual also recommends checking the breach against the stated installation range before proceeding. If the seats are dirty or worn, the cartridge may not seal properly, which can lead to leaks or poor operation. Reseating or correcting the breach first helps avoid later troubleshooting.

How tight should the cartridge and bonnet be on Axon Wall Top Assemblies?

The cartridge should be screwed in until it seals with the seat, but it should not be over-tightened. After that, the red fibre washer and bonnet are fitted, and the bonnet is tightened firmly with a spanner. Firm is important, but excessive force can damage components or affect sealing. A steady, correct fit helps maintain smooth tap operation and reduces the risk of leaks or premature wear.

What water pressure and temperature limits apply to Axon Wall Top Assemblies?

The product is designed for a maximum continuous operating pressure of 500 kPa, with the recommended working range between 150 and 500 kPa for best performance and longer life. The maximum continuous working temperature is 75°C. If water pressure may exceed 550 kPa, a pressure-limiting device is required. If hot water may exceed 75°C, a tempering valve is needed. Staying within these limits protects the tapware and helps prevent warranty issues.

What happens if the Axon Wall Top Assemblies are installed with the wrong wall depth or breach position?

Incorrect breach depth can cause the handle, spindle, or trim components to sit too far in or too far out from the wall surface. That can affect the way the square plate, lock nut, and handle align during installation. The manual stresses measuring the breach-to-wall distance before choosing the cartridge extension. Getting this step right is important for a neat finish, smooth operation, and proper sealing around the tap body.

How should I clean chrome Axon Wall Top Assemblies without damaging the finish?

Clean chrome plated surfaces with mild liquid detergent or soap and water. Avoid cream cleaners, citrus-based cleaners, steel wool, scourers, and other abrasive materials because they can scratch or dull the finish. The manual warns that damage caused by unsuitable cleaning products is not covered. A soft cloth and gentle cleaning routine will keep the wall top assemblies looking good while protecting the plating over time.

Why does the manual mention flushing pipework before installing Axon Wall Top Assemblies?

Flushing the pipework removes debris, grit, and leftover installation material that could damage the cartridge or interfere with sealing. Small particles inside the water lines can cause rough handle movement, leaks, or reduced performance after installation. The manual specifically requires pipework to be flushed before fitting the tapware. This simple step is one of the best ways to prevent early troubleshooting and extend the life of the assembly.

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