Is the span fixed

This kit is a standard for contractors servicing gas (natural and LP) and oil heating appliances where a chimney is either unavailable or replacement is cost-prohibitive

and Payne residential fan coils and central air conditioners

preventing the premature wear of the fan blade or overheating issues commonly associated with "universal" alternatives

This unit meets all ASME V and UV requirements

Sporlan 900861 Control Valve 323613-751 Is the span fixedThe Sporlan 900861 is a professional grade Type ORI 10 65 225H pressure regulating valve designed for precise head pressure control in high performance refrigeration and air conditioning systems. This specific 1 1 8" ODF solder model is engineered to prevent condenser pressure from dropping below a critical minimum during low ambient temperature operations. By restricting liquid refrigerant flow from the condenser to the receiver, the Sporlan ORI 10