Description

The Industry-Standard Choice for Boiler Timing: Grässlin 112691

The Grässlin 112691 (01.76.5100.1) Mechanical Timer is a high-quality, German-engineered hardware component trusted by heating engineers across the UK. At ECO Heat Shop, we focus on durability. This electromechanical timer is favoured for its “fit and forget” reliability—unlike digital programmers that can reset during power cuts, this synchronous motor continues its cycle as soon as power returns, maintaining your home’s schedule without the need for reprogramming.

This unit is specifically designed to be integrated into the boiler fascia. It provides a tactile way to manage energy consumption, allowing you to visually set and confirm your heating periods at a glance. By ensuring your boiler only runs when necessary, this small component plays a big role in a sustainable, cost-effective heating strategy.

Key Features & Professional Benefits

• Tactile Tappet Interface: Features 96 individual segments. Simply push the “tappets” outward for ON periods and leave them inward for OFF, allowing for up to 48 on/off cycles per day.
• Synchronous Motor Drive: Engineered for precision, the internal motor is designed to withstand the high-temperature environment of a boiler casing while maintaining accurate timekeeping.
• Volt-Free SPDT Contacts: Offers flexible wiring options, making it suitable for a vast range of boiler control circuits and general industrial timing applications.
• Manual Override Switch: A central three-position toggle allows for instant manual control (Advance/Override) without disturbing your pre-set daily heating programme.

Technical Specifications & Compatibility

• Manufacturer Part Number (MPN): 112691 / 01.76.5100.1.
• Known Compatibility: Baxi Duo-Tec/Platinum, Remeha Avanta, Ferroli Modena/Optima, Main Combi Eco, and many others.
• Voltage: 230V AC / 50Hz.
• Switching Capacity: 16A Resistive / 8A Inductive.
• Intervals: 15-minute switching segments.
• Type: Synchronous 24-hour mechanical time switch.

Why Choose Grässlin from ECO Heat Shop?

As a specialist UK-registered hardware provider (Company No: 16383897), we supply genuine Grässlin parts to ensure your system meets original manufacturer specifications. The 112691 is a robust, “old-school” workhorse that just works, day after day. We offer fast UK delivery and professional technical advice to help you keep your heating system running at peak efficiency.

Expert Tip: This “Multifit” unit is the standard internal clock for the Baxi 105HE, Duo-Tec, and Platinum ranges. If your boiler’s heating isn’t coming on at the set time, but works when set to “Always On,” this timer unit has likely reached the end of its service life and requires a straightforward replacement.

ECO Heat Shop: Your trusted UK destination for genuine boiler spares, professional trade tools, and sustainable heating solutions.