Ideal Electrical Connection Box HIU 178078

The Ideal HIU electrical connection box, part 178078, is the enclosed wiring interface that terminates the electrical supply and control cabling on an Ideal heat interface unit. It keeps the incoming mains and internal control connections housed and protected inside the appliance casing. It is supplied as a spare for Ideal Commercial HIU installations.

• Intermittent or complete loss of power to the heat interface unit
• Fault codes or error messages traced to the electrical supply or control circuit
• Scorching, discolouration or heat damage around the terminal block
• Loose, corroded or brittle terminations that will not tighten down
• Cracking or damage to the enclosure body or its mounting points

• Confirm the appliance model and serial number against the compatibility list before ordering.
• Note the alternative part number 1783171 when cross-referencing older documentation or stock records.
• Isolate the electrical supply at the consumer unit and prove dead before removing or refitting the connection box.
• Electrical work on the appliance should be carried out by a competent person.