Orion System Dual Electronic Expansion Valve Module - Manual (Page 19)

Technical Guide
Dual Electronic Expansion Valve Module
19
Troubleshooting
Dual Electronic Expansion Valve
Module Troubleshooting
Valve Enable Outputs Not Working
Make sure 24 VAC is applied and the LEDs are lit.
Electronic Expansion Valve Outputs
Not Working
• Make sure the valves are wired correctly according to
the colored wires shown on the module.
• Make sure the correct valve size is confi gured.
• Monitor the LEDs to see if the valve is modulating.
• Valve may not modulate if Superheat is at the Superheat
Setpoint.