ACR 0644C - Introduction to HVAC Level 3 ACR 0644C - Introduction to HVAC Level 3 Content includes planned maintenance, water treatment, troubleshooting electronic controls, troubleshooting oil heating, and troubleshooting accessories. Semester Hours: 150 clock hours Semester pring Fees: Lab Fee Course Designations: Post-Secondary Adult Vocational
Prerequisites: BCV0003C, ACR0640C, ACR0641C