York S1-029-19387-003 Orifice 320734-701 the 153825 is the head

the 153825 is the head mechanism only

With an adjustable range of 1

the 320710-301 prevents irregular air patterns that can lead to sensor tripping or reduced HVAC performance

For suction line temperature

When installing the 100109841 gas valve

York S1-029-19387-003 Orifice 320734-701 the 153825 is the headThe York S1 029 19387 003 Orifice is a precision engineered . 061 refrigerant metering device designed to regulate the flow of refrigerant within York HVAC systems. As an OEM replacement part, it ensures the exact pressure drop required for optimal thermal exchange, preventing liquid slugging and maintaining system efficiency. This specifically sized 0. 061 inch diameter orifice is common in residential split systems and microchannel air conditioner