Ideal Clip In Interface OpenTherm 179452

The Ideal OpenTherm Clip In Interface (part number 179452) is a plug-in control interface for Ideal commercial heating appliances. It clips into the dedicated connector position on the appliance control board and provides an OpenTherm communication link between that board and an OpenTherm-compatible room thermostat, programmer or building management controller.

With the interface fitted, the appliance can modulate its output in response to the demand signal it receives rather than running on its own internal switching logic. That gives finer control of flow temperature and steadier running across the heating circuit.

• The thermostat or controller reports no communication with the appliance.
• The appliance runs at a fixed output and does not modulate in response to OpenTherm demand.
• OpenTherm or communication fault codes appear on the appliance display.
• A call for heat from the thermostat is ignored while the appliance still responds to its own internal controls.
• Control faults are intermittent and change when the interface is reseated in its connector.

• Confirm the appliance model and serial number against the compatibility list before ordering.
• Cross-reference the alternative part number 1782835 when checking older documentation or existing stock records.
• Inspect the control board connector for contamination or damage; a poor connection can produce the same symptoms as a failed interface.