Secure Meters H3747 Secure 4 Channel Water Heating Smart Programmer

H3747 4-Channel Water Heating Smart Programmer – ChannelPlus Replacement with Bluetooth & Smart Control

The H3747 is a versatile 4-channel smart programmer designed to replace the ChannelPlus H47XL and H37XL models, offering advanced heating control for combi or system boilers, heat pumps, and wired thermostats. With easy retrofitting onto a standard 9-pin backplate, it adds modern features such as Bluetooth app control and smart scheduling while requiring minimal wiring changes.

• ChannelPlus Compatible Replacement: Fits the same wall plate as the H47XL and H37XL with minimal wiring changes for quick upgrades.
• Multi-System Support: Controls combi boilers, system boilers, heat pumps, and up to two heating zones plus hot water.
• 4 Independent Channels: Volts-free 3A rated outputs allow flexible control of heating and hot water schedules.
• Smart & Local Control: Operate locally via Bluetooth (no Wi-Fi required) or enable smart features with optional Wi-Fi adaptor.
• Boiler Plus Compliant: Includes optimum start/stop and load compensation for improved efficiency and regulatory compliance.

Technical Specification

• Channels: 4 independent channels
• Output Rating: 3A, volts-free
• Control Systems: Combi and system boilers, heat pumps, wired thermostats
• Mounting: Standard 9-pin ChannelPlus backplate
• Connectivity: Local Bluetooth control, optional Wi-Fi smart control
• Features: Optimum start/stop, load compensation
• Warranty: 7-year no quibble warranty (12-year battery warranty on PTD)

✅ Upgrade to the H3747 smart programmer for seamless ChannelPlus replacement with advanced control, efficiency, and installation ease!