HORSTMANN 425 DIADEM PROGRAMMER

Our Part No: 4210010
MPN: 425 DIADEM

We're sorry but this product has now been discontinued by Horstmann Controls and can no longer be purchased.

Please see available variant replacements.

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HORSTMANN 425 DIADEM PROGRAMMER.

The Horstmann 425 Diadem Mechanical Programmer offer a easy to use and simple way of controlling hot water and central heating systems, it uses a 24-hour rotating dial with 2 on/off periods indicated by the red and blue pins.

The 425 Diadem is a two circuit programmer for hot water and central heating with indicator lights. The programmer is ideal for gravity systems and fully pumped systems with zone valves. It has 16 programmes available for fully pumped systems, including independent programming of heating and hot water as well as 10 programmes for gravity hot water/pumped heating systems.

Contact rating: Double circuit 6(2.5) A
Contact type: Micro-disconnection changeover, voltage free
Dial settings: 2x ON / 2x OFF (Min ON/OFF period 45 minutes)
Mounting: 9 pin wall plate
Enclosure protection: IP20

The HORSTMANN 425 DIADEM PROGRAMMER is a genuine, brand new Horstmann Controls product, covered by a Horstmann Controls manufacturer's guarantee.

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For advice on this or any product, please call us on 0330 123 3707, email us at web@dhsspares.co.uk, or see additional ways to contact us here.

Brand: Horstmann Controls
Name: HORSTMANN 425 DIADEM PROGRAMMER
MPN: 425 DIADEM
GTIN / EAN: 5015914551017
Our Part No: 4210010
Categories:

Gas Boiler Spares Clocks, Timers & Programmers

This part fits the following 3 appliances (sorted alphabetically):

May fit others. If you are unsure of your product model, or would like more information, please contact us.

At DHS we offer a range of product options to suit different budgets and requirements, while maintaining quality and reliability across all categories.

Below is an explanation of each product type available on our website. Please note that not all products will have all variants available.

UCP

BEST VALUE

Unbranded Component Product. Genuine manufacturer component, but no branded packaging.

Sourced Directly from the Manufacturer
Supplied in Unbranded Packaging
Same Quality & Function as OEM Version
Cost Effective Alternative
12 Month Warranty

OEM

ORIGINAL PART

Original Equipment Manufacturer Component with branded packaging.

Genuine Original Part
Sourced Directly from the Manufacturer
Manufacturers Official Packaging
Trusted Manufacturer Quality
12 Month Warranty

Alternative

Compatible replacement parts sourced from a third party Manufacturer.

Lower Cost Replacement Option
Fully Functional Alternative
Appearance, design or materials may differ from the original part
12 Month Warranty

Refurbished

Original OEM components that have been professionally refurbished.

Genuine OEM Component Professionally Refurbished and Tested
Environmentally Conscious Choice
Excellent Value for Money
12 Month Warranty

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If you are unsure of which product category is right for your repair or installation, our team is happy to help.

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