The Ideal Halo Lite OpenTherm Wired Combi is a single zone combi programmable room thermostat compatible with current Logic combi boilers. Easy to use and aesthetically pleasing, the Halo Lite is packed full of features, to enhance energy efficiency and benefit both landlords and tenants. Additional features:|Frost protection for reassurance that the system is protected in cold weather.|Child lock function to avoid unwanted adjustment.|Manual mode to disable schedule and control temperature with the dial.|Quick and easy installation with out of the box setup.|Wired power and control (no batteries) using the OpenTherm two wire connection.|Minimal ongoing maintenance, no batteries to change.|Fixed position with discrete security screw on front housing, minimal risk of tenant tampering with control.|Advanced settings to tailor controls to tenant and landlord needs.|Service timer function with PIN number control.|Flexible service timer options with choice of reminder or heating setpoint restriction.|Upper and lower temperature restriction with PIN control.|Landlord contact number input.|Frost protection to ensure protection of the system in cold weather.|Clear fault reporting in plain English.|ERP Class V.|Enhanced load compensation provides compliance with Boiler Plus.|Advanced features to balance comfort and efficiency.|Optimised start ensures the home reaches temperature by the scheduled time.|Optimised stop and delayed start features enhance efficiency and avoid needlessly heating the home. Halo is only plug and play in boilers manufactured post June 2019 with the serial letter code AFQ and beyond and 8C. Independent, Logic, Logic Plus, Logic MAX, Vogue & Vogue MAX, prior to this will require a Halo Smart Interface Bracket, product code 220366 which are currently only available from Ideal Sales 0844 543 6000 or by using their loyalty points. The Halo interface bracket enables external mounting of the smart interface instead of using the aperture in the front of the boiler.The bracket is wall mounted and requires power from a 24 dc power supply (standard plug) and wires in to the Open Therm Terminals on the boiler