Выражение встречается в следующем контексте:

troubleshooting

• Check for proper orifice and air plate
Заранее спасибо

Burner Does Not Light
• Is spark visible through site glass during ignition trial? If no, further electrical checks by a
qualified service person are required.
• Check to see if gas lines were properly purged of air.
• Check inlet and outlet gas pressure during ignition period.
• Check for proper orifice and air plate.