York S1-025-35389-002 Reversing Valve 318973-401 the 8552-005BX is the official
Yard notes & kiln story
Description
York S1 025 35389 002 Reversing Valve 318973 401 the 8552 005BX is the official the 8552 005BX is the official manufacturer update for the 8552 005 High Limit Protection: Prevents overheating by monitoring plenum temperatures and interrupting the burner circuit if airflow is restricted