The Honeywell Home Actuator for V4073A (stock code 117053 / manufacturer’s 40003916‑003/U) is a direct‑replacement motorised actuator designed for use with Honeywell V4073A mid‑position three‑port valves. It provides smooth operation, quiet performance and a hassle‑free installation - ideal for trade professionals and maintenance tasks requiring a quick repair without draining down the system.
The Honeywell Home 2 Port Zone Valve 28 mm V4043H1106/U is a precision‑engineered motorised valve designed for domestic and light commercial heating systems. With a 28 mm compression connection, spring‑return action, auxiliary end switch to control boiler or pump circuits, and minimal power consumption for quieter operation, it’s the ideal upgrade to enhance system efficiency.
The Honeywell Home Actuator for V4043H (40003916‑001/U) is a genuine replacement powerhead designed to fit the V4043H series two‑port motorised zone valves. Compatible with UK 230 V systems, it features a manual lever, spring‑return mechanism and quick‑swap fitment without full system drainage — ideal for fast, professional repairs.
The Honeywell Home DU144 22 mm Straight Auto Bypass Valve (DU144A1001) is a robust automatic bypass valve designed to ensure minimum boiler flow, maintain pressure balance and reduce noise in closed‑loop heating systems. With 22mm compression fittings, wide differential pressure range (0.1–0.6 bar) and brass construction, it offers a professional solution for energy‑efficient central heating installations.
The Honeywell Home DU145‑3/4B 22 mm Differential Bypass Valve ensures consistent boiler flow and stable system pressure by automatically regulating differential pressure in heating circuits. With 22 mm compression connections, a wide differential pressure range (0.1‑0.6 bar) and high flow capacity, it is ideal for modern central heating systems requiring reliable bypass control.
The Honeywell Home ST9100C1006 7‑Day Programmer is a reliable single‑channel time switch designed to manage your central heating zone or combi boiler. With up to three on/off periods per day, a large backlit “Line of Text” display, automatic summer/winter time change and non‑volatile memory that keeps your settings, it’s an ideal upgrade for better comfort and energy efficiency.
The Honeywell Home Sundial Wiring Centre 42005748‑001 is a dedicated junction box designed for domestic central‑heating control systems. With 37 clearly labelled single‑wire terminals, a fire‑retardant PC‑ABS enclosure and support for S‑Plan, Y‑Plan and C‑Plan configurations, it streamlines installations and helps reduce wiring errors.
The Honeywell Home V4073A1088/U 28 mm Mid‑Position Mid‑Position Valve is a robust 28 mm motorised 3‑port valve built to manage flow in domestic central heating systems where both the radiator and hot‑water cylinder circuits are pumped. With compression connections, spring‑return action, manual lever for filling/draining and removable power‑head without system drain‑down, it’s designed to simplify installation and improve system performance.
The Honeywell Home ST9400C1000 7‑Day 2‑Channel Programmer is a wired programmer offering independent control of both heating and stored hot water systems. With up to three on/off events per day, separate programmes for each channel, a large backlit Line‑of‑Text (LoT™) display for intuitive setup and automatic summer/winter time change, this unit delivers reliable scheduling and simplicity for UK installations.
The Honeywell Home Sundial RF2 Pack 1 (Y9120H2009) delivers energy-efficient heating control with TPI (Time Proportional & Integral) technology, compliant with Boiler Plus regulations. Featuring 2-way wireless connectivity at 868 MHz with a 30 m range, pre-bound from the factory for easy setup. Operates between 0–40°C, IP30 rated, and includes ST9120C powered by 230V AC and DT92E with 2×AA batteries. Supports wireless enable upgrades and comes with a 5-year warranty.