Installer Base

Mixergy product and installation support • technical guides and downloads • training • account and order information • FAQs

General information and support

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    What is the available range of the Mixergy tanks?

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    Mixergy tanks are available in the following variants:

    • Unvented – Indirect and Direct:
      • Standard diameter (580mm): 120, 150, 180, 210, 250, 300 litres
      • Slimline diameter (480mm): 120, 150, 180, 210 litres
    • Vented – Indirect:
      • Standard diameter (580mm): 120, 150, 180, 210 litres
      • Slimline diameter (480mm): 120, 150, 180, 210 litres
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    What additional components are supplied with a Mixergy tank?

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    The following components are supplied with a Mixergy tank as standard:

    • Monobloc kit including pressure reducing valve, check valve, pressure and temperature relief valve, and expansion relief valve
    • Tundish
    • Expansion vessel including mounting bracket and 3/4” x 22mm adapters (unvented only)
    • 3 kW immersion heater(s) 1.3/4” BSP (fitted)
    • High limit thermostat (indirect only, fitted)
    • 2-port diverter valve V4043H1056 (indirect/heat pump only)
    • Powerline to ethernet adapter TL-PA4010
    • Ethernet cable
    • User Guide
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    How can I become an Approved Installer?

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    We are always looking to grow our network of quality installers who are keen to offer Mixergy tanks to their customers. It is really easy to become an Approved Installer – you can complete the application form here, or call the Mixergy sales team on 01865 884343 (select option 1).

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    Where can I find out about installer training?

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    You can arrange training at a time convenient to you – just complete the application form here, or call the Mixergy sales team on 01865 884343 (select option 1).

    As a taster, check out our Installer Training Video.

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    Do I have to be an Approved Installer to install a Mixergy tank?

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    Mixergy tanks can be installed by any plumber or heating engineer with the relevant qualifications. It is mandatory that installers must hold a BPEC G3 qualification if they are to install an unvented hot water tank.

    We strongly recommend that you sign up to become an Approved Installer. This will give you some significant benefits in terms of training and technical support. We also help our installers with sales and marketing, including the provision of customer leads. Sign up today!

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    Where can I find details on the Mixergy warranty?

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    Mixergy tanks come with a 25-year warranty, with all peripheral components and electronics subject to a 3-year warranty. To validate the warranty, your tank must be registered and connected to the Mixergy network. Full details of our warranty information can be found here.

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    Where can I get more details on the Installer App?

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    The Installer App is the easy way for you to commission your Mixergy tank install. As well as accessing technical guides, schematics, and ‘how-to’ videos, you can also remotely track and manage your Mixergy installs. More information is available here.

    The Installer App is available to download via Apple App Store here or Google Play Store here.

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    How can I buy a Mixergy tank?

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    You can purchase a Mixergy tank through the following stockists:

Connectivity support

Here are some useful bits of technical information that you might find useful when installing a Mixergy cylinder.

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    Why do Mixergy tanks connect to the internet?

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    Mixergy tanks connect to the internet to enable smarter control of the hot water using the Mixergy App and allows software updates to be automatically received when new App features become available. Remote diagnostics can also be carried out on the tank should you have any problems.

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    Can you still use a Mixergy tank if there is no Wi-Fi or internet connection?

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    Mixergy tanks do not require Wi-Fi. Mixergy provides a power-line adapter device that directly plugs into your broadband router, and the tank uses powerline communication to provide an internet connection to the tank.

    If the household doesn’t have a broadband connection, the tank can still operate in offline mode. When the tank is offline, app control and smart scheduling become unavailable. However, the tank can still be controlled locally by the gauge.

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    The internet connection is poor. Will this affect how the Mixergy tank works?

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    Mixergy tanks do not require a high-speed internet connection. A relatively slow but stable internet connection will work fine. If the internet does temporarily disconnect, the tank will continue to heat according to the last schedule set when there was an internet connection. You can also use the gauge to boost the tank without the need for internet.

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    What if the powerline adaptor doesn’t work or the connection is intermittent?

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    This is most likely to be caused by a powerline interference or conflict with other powerline devices you already have in the house.  

    First, make sure that the Mixergy powerline adaptor is plugged into a wall socket, not an extension lead. If you already have a powerline network in the house and it is TP-Link brand, you can pair the tank directly into your existing powerline network. If it is not TP-Link, Mixergy can supply a Wi-Fi connection kit as a back-up solution – this is available on request. Alternatively, you can simply hardwire an ethernet cable from the internet access point / router to the tank. 

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    Can I hardwire a network connection?

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    Yes, you can hardwire an ethernet cable into the Mixergy control panel negating the need to use the powerline adapter. To do this you will need to isolate power, remove the control panel lid, disconnect the beige ethernet cable and insert your network cable (Cat 5/6) in its place, before refitting the lid and powering-up the tank.

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    Will my Mixergy tank still work if my internet stops working?

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    The Mixergy tank has ‘memory’ and will follow the last known schedule until the tank reconnects to the network. If the schedule has changed during that period, the tank will then update its schedule. The tank can always be controlled by the gauge even if there is no internet.

    If the tank also lost power during the time it was offline and subsequently powers back later without an internet connection, the tank will enter an offline mode and will aim to maintain the tank halffull. 

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    Can I commission the tank if the property has no internet?

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    The Mixergy tank can be commissioned ‘offline’ by using the gauge to change/select the correct heat source (direct/indirect/heat pump) and then boosting. Details of how to do this are found on page 31 of the Installation Guide.

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    Can Mixergy remotely connect to the tank and help me set it up?

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    Yes, providing the Mixergy tank is online (blue connectivity light present on the gauge), Mixergy will be able to remotely connect and help you set up the Mixergy tank.

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    How can I access the Mixergy Enterprise Installer app for commissioning in the field?

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    You will need to undertake training on the Mixergy tank with our installer team (click here for how to become an Approved Installer), upon completion of the Mixergy training you will be issued with a Portfolio ID number that will allow you to register as an approved installer and commission tanks in the field.

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    What additional connectivity allowances do I need to make for the PV embedded version of the Mixergy cylinder?

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    You will need to run a dedicated Cat 5 ethernet cable between the tank and the mains services cupboard (mains isolator and distribution board). The tank end of this network circuit is connected to the Mixergy cylinder mounted PV diverter and the other end is where the CT clamp is fitted around the mains incoming power cable.

Electrical support

Here are some useful bits of technical information that you might find useful when installing a Mixergy cylinder.

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    What wiring is required to install a Mixergy tank?

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    A Mixergy tank requires a mains voltage electrical supply. Mixergy tanks must be connected to a dedicated 16A MCB protected circuit via a 20A DP switch, and be wired to the latest IEE wiring regulation. A qualified electrician is required to make an electrical connection to the unit.

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    How do I wire the Mixergy tank to work with the gas boiler?

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    The Mixergy tank uses a 4-core cable (labelled “indirect control cable”) to energise the two-port valve to call for heat. The black wire of the indirect control cable connects to permanent live, the brown wire sends the “hot water on” signal to energise the two-port valve, and the grey wire sends the “hot water off” signal to the three-port valve if it is a Y-plan.   

    Note: if you cannot detect a live signal for the brown wire when calling for heat, first make sure that the tank’s heat source is selected as “indirect, e.g. gas boiler”, and then check if the thermostat has been tripped. 

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    How do I install the heat pump interface switch?

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    The heat pump interface is a device designed to allow for a generic interface with heat pumps expecting the use of a digital NTC/PTC/PT100/PT1000 style sensor for the detection and control of the hot water temperature within the tank.

    The heat pump interface has a pre-set range of resistance values for most common heat pumps and a manual resistance setting option. This ensures that the tank can communicate with any heat pump. The interface also negates the need for a dedicated stat pocket for the heat pump. Full details of how to install the heat pump interface can be found in the Installation Guide.

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    Do I need another power supply for the heat pump interface?

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    You can either take the power supply for the heat pump interface off the tank’s primary supply or provide an external 3A supply (either from the heat pump’s controller or elsewhere). This supply is used for powering the board’s electronics and 40W pump.

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    How do I connect to a conventional or smart hot water timer control (e.g. Hive, Nest, or tado)?

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    The Mixergy controller has a cable labelled ‘timer control cable’ which allows you to hard wire a 240V switched live connection from a smart thermostat. This enables the third-party thermostat (HiveNest, etc.) to send a call for heat to the Mixergy tank. If you boost the Mixergy tank through the smart thermostat for a 30-minute hot water event, the tank will respond to the call to heat for 30 minutes before returning to the Mixergy set schedule.  

    The third-party timer controller can control hot water heating by time only – not by volume. These controllers will also not enable you to maintain a particular hot water level. Therefore, we encourage all Mixergy users to programme and control their Mixergy tank through the Mixergy App to get the best user experience. 

Plumbing support

Here are some useful bits of plumbing information that you might find useful when installing a Mixergy cylinder.

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    What size connections does the Mixergy tank have?

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    The pipework connections on the Mixergy tank are 22mm compression fittings with a 3/4” BSP male thread. Either a compression join or threaded joint can be used depending on the requirements of the installation.

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    Can Mixergy tanks be fitted to a 15mm cold feed?

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    Yes, you will just need to fit a reducing connection on the cold water inlet so that the 15mm connection fits.

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    Does the Mixergy tank have secondary return connections?

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    Only Mixergy tanks with a volume of 210 litres or more have secondary return connections.

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    Are Mixergy tanks suited to use with secondary returns?

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    Mixergy tanks of 210 litres or more can be connected to secondary returns. Tanks with a smaller volume are not suitable for use with a secondary return system. Tuning of the secondary return pump speed and ‘on time’ are recommended to avoid excessive heat losses.

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    Is there a minimum flow rate required for the Mixergy tank?

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    There is no minimum flow rate required for the Mixergy tank to operate. However, if you are to straight swap a conventional cylinder with a Mixergy tank, this will not improve the home’s hot water flow rate as this is limited by the flow rate supplied to the tank. For unvented installations, we recommend 20 litres per minute for an optimal hot water experience.

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    Can I adjust the pump assembly at point of installation?

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    Yes, we recommend that the installer checks and tests all the connections on the top-up pump assembly to prevent leaks occurring.

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    Does Mixergy offer a dual-coil / solar thermal option?

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    Yes. More information about the Mixergy solar thermal tank is available here.

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    Can I install a water softener with the Mixergy tank?

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    Mixergy recommend that water softeners are used in areas of hard water. Please note that the Mixergy warranty is invalidated for any installation in areas of >300ppm of calcium chloride. You can check the water hardness in your area by checking your local water supplier’s website.

Useful Videos

Mixergy Install with Tim Smith Plumbing + Heating

Installing the Mixergy Heat Pump cylinder with a Daikin Altherma heat pump

The Mixergy Tank is just as easy to install as any other hot water cylinder on the market

Aircraft Southern install a Mixergy 500 litre solar PV and heat pump cylinder, with a Daikin Altherma Heat Pump

All Mixergy cylinders are heat pump ready

The Mixergy hot water tank only heats what you need, saving time and money. Further energy savings are made by heating with renewable heat sources, like solar.