Does this unit require a specific orientation for bi-directional flow

What are the symptoms of a failing S1-024-19138-001 relay

this 24V AC controller replaces legacy boards by utilizing advanced adaptive control logic to monitor evaporator coil temperatures

ensuring consistent communication between the flame sensor electrode and the Honeywell ignition module

while the other leg (L2) remains connected through a shunt

Copeland Comfort Control (White Rodgers) 24A06G-1 Relay Refrigerant Does this unit require aThe Copeland Comfort Control (White Rodgers) 24A06G 1 Relay is a heavy duty, dual load 240V electric heat relay designed for professional contractors managing multi stage or high wattage resistive heating applications. This DPST (Double Pole, Single Throw) relay allows a single 24V low voltage thermostat to control two independent 240VAC line voltage loads, making it the industry standard cross reference for the obsolete Honeywell R841E1068. Built