How do turbulators improve boiler performance

Typical indicators include a constant "open limit" fault on the control board

particularly in multi-stage heating applications

The Johnson Controls T-4002-5017 Dial is a critical replacement component designed for horizontal mounted thermostats within the T-4000 series pneumatic control systems

Sporlan 168080 QC-5 Black Q Cartridge/ID Tag How do turbulators improve boilerThe Sporlan 168080 is a high precision QC 5 Black Q Cartridge designed for field serviceable thermostatic expansion valves in small refrigeration and air conditioning systems. Engineered for the veteran contractor, this size #5 orifice assembly provides a specific flow profile compatible with R 22 systems at a 3 ton capacity, and R 404A, R 134a, or R 502 setups at a 2 ton capacity. The color coded black top and included ID tag ensure immediate