Specifications:
The document describes the specifications of the BLUE WOI instantaneous wall-hung boiler with an open flue, available in 24kW and 29kW models. The expansion vessel is preloaded to 0.7 bar, suitable for a system with a total water content of 150 liters. The boiler complies with Standard UNI EN 297.

Technical Features:
The boiler includes a hydraulic group with a motorized 3-way valve controlled by a REED effect flow switch, ensuring operation at minimum pressures. It features a primary exchanger with copper pipes and steel turbulators, and a DHW exchanger made of braze-welded stainless steel plates for high heat exchange efficiency. An automatic antifreeze function maintains a flow temperature of +6°C.

Efficiency and Performance:
The maximum heat input is 29kW for the WOI 29 model and 24kW for the WOI 24 model. The efficiency class is specified, with maximum efficiency at nominal capacity and at 30% capacity. The boiler includes a pump overrun for residual heat recovery and a pump antiblocking system that activates every 24 hours of inactivity.

Safety and Diagnostics:
The boiler features digital self-diagnosis and a continuous re-ignition prevention system. It also includes a standard kit for water connections.

Dimensions and Connections:
The boiler dimensions are 450x901x351 mm, with a weight of 42 kg for the WOI 24 model and 45 kg for the WOI 29 model. The air flue connection diameter is specified, and the boiler is available with codes for methane and GPL supply.

Contact Information:
IRSAP SPA, Via Nazionale Adriatica, 15/F, 45031 Arquà Polesine (RO), Italy. Tel: +39 0425.466611, Fax: +39 0425.465044, Email: [email protected], Web: http://www.irsap.com