IGH issue not yet solved. Three possible scenarios to get the system up and running.
Scenario 1: Using the original IDR unit with caution and workaround steps. This will be clear by end of this week.
Scenario 2: Using Goldman's lab IDR to control solenoid valves. The stepper valves, V6 and V12a needs to be replaced with manually controllable switches. G1 and G2 gauge needs to be calibrated.
Scenario 3: If Scenario 2 donot work for any reason, we will use brute force manual switches to change solenoid valve states and use the stepper valves just as in Scenario 2. I am currently mapping the solenoid valve wiring.
IDR looks stable with He3 pump switch on state and keeping it in test mode overnight. More details after I do a few cryocleaning cycles today and tomorrow.
-
Made changes to the pump circuit for manual control.
-
