Electrical & Controls › Electrical diagnostics

Core

Verify supply voltage, voltage tolerance, wire sizing and control voltage on a newly installed or serviced system before start-up.

Confirming line voltage and phase, checking voltage drop over long runs, sizing wire and fusing and proving the 24 V side before power-up.

Before this skill

Required

• Using electrical meters
• Transformers and control voltage

HVAC Excellence competency codes

• EH-024
• ELEC-060
• ELEC-061
• EH-023
• GH-055

Courses that teach this

No mapped courses yet

We haven't matched a course or certification to this skill yet. Matches are added as a person on our team reviews them.

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Career paths that include this skill

• Installation Technician Required
• Service Technician Required
• Maintenance Technician Elective
• Commercial & BAS Technician Required
• Service Manager Elective
• Installation Manager Recommended
• Instructor Recommended