Description
York S1 4HK16502006 Heat Kit Refrigerant the manual stem must be the manual stem must be turned to the full down (retracted) position If your control sequence requires an increase in pressure as temperature drops
York S1 4HK16502006 Heat Kit Refrigerant the manual stem must be the manual stem must be turned to the full down (retracted) position If your control sequence requires an increase in pressure as temperature drops