always match the orifice size to the specific fuel type of the unit

you should see continuity

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then press and hold the UP and DOWN buttons simultaneously while moving the switch back to HEAT

Sporlan 102962 Regulator 320074-702 always match the orifice sizeThe Sporlan 102962 is a heavy duty A82BL Differential Pressure Regulator designed for precise refrigerant flow control in large scale commercial refrigeration and industrial HVAC systems. Featuring 2 1 8" ODF solder connections, this valve is engineered to maintain a constant pressure differential across a refrigerant compressor or heat exchanger, ensuring reliable performance during varying load conditions. The A82 series is known for its high flow