Does this valve body include the internal orifice or power head

the gasket has likely lost its elasticity or developed micro-tears

the CNT3781 is frequently specified for downflow vertical positions where the heat exchanger is in close proximity to the indoor coil

The #44 size is standard for several Reznor heaters operating at typical manifold pressures

Rheem-Ruud 46-23115-02 Transformer Does this valve body includeThe Rheem Ruud 46 23115 02 Transformer is a heavy duty, field proven 40VA step down transformer designed to provide reliable 24V control power for residential and light commercial HVAC systems. This OEM Rheem part is engineered to convert 208 230V primary voltage into the stable 24V secondary output required to drive thermostats, ignition control boards, and contactors. Built with a compact, foot mount design and leads with stripped ends, this HVAC