Ideal Plate Heat Exchanger Kit ABK Onwards 177529

The Ideal 177529 is a plate heat exchanger kit used on Ideal ABK onwards boilers. It sits between the primary heating circuit and the domestic hot water circuit, transferring heat from the boiler water into the mains-fed hot water supply. Because it handles both circuits at once, it is central to hot water production on the appliances it serves.

• Hot water at the tap runs hot then cold, or the temperature swings noticeably during draw-off
• Domestic hot water flow is weaker than expected for the incoming mains pressure
• Water weeping from the plate body, its gasket faces or its connections
• Scale or sludge restricting the plate channels, common in hard water areas
• The boiler overheats or locks out when hot water is demanded

• Check the appliance GC number or data badge against the compatibility list before ordering.
• Confirm the part number on the unit being worked on matches 177529, or one of the alternative numbers 1782501 and N4866.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.