Ideal Sight Glass Assembly Complete 172670

The Ideal sight glass assembly, part number 172670, is a complete viewing unit that lets an engineer inspect the flame and combustion chamber without stripping the appliance. It is supplied by Ideal for the Ideal Commercial Imax range and similar commercial appliances. The assembly forms part of the burner housing area, giving a direct line of sight into the combustion chamber for flame pattern, colour and stability checks during servicing and commissioning.

• The glass is cracked, chipped or crazed, so the combustion chamber is no longer safely sealed.
• The glass is heavily discoloured or sooted and the flame can no longer be read clearly.
• Condensation or moisture is trapped behind or between the glass and its housing.
• The seal or gasket around the sight glass has perished, allowing products of combustion to escape at the joint.
• The retaining ring or housing is distorted, so the glass cannot be seated or clamped correctly.

• Check the GC number on the appliance data badge against the numbers listed for this part: 41-397-97, 41-399-01, 41-397-98, 41-399-02, 41-397-99 and 41-399-03.
• Confirm the model and serial number, as the Imax range covers several outputs and fuel types, including propane variants.
• Note the alternative number 1178996 when cross-referencing older documentation or stock records.
• Inspect the gasket or seal at the same time and replace it if it is hardened or damaged, so the joint seals correctly on reassembly.