1. Pre-Construction

• Submit shop drawings, equipment submittals, and sequences early.
• Coordinate chases, access, penetrations.
• Order long-lead items like RTUs early.

2. Underground/Slab

• Install condensate piping and sleeves before slab pour.
• Coordinate with plumbing and electrical trenching.

3. Rough-In

• Install ductwork, refrigerant piping, and hangers.
• Top-down sequencing with MEP coordination.

4. Equipment Set

• Crane/set large RTUs, AHUs, and fans.
• Coordinate with electrical for power requirements.

5. Controls & Balancing

• Install thermostats, actuators, and control wiring.
• Review control sequence with GC and controls team.

6. Finish Phase

• Install diffusers and grilles after ceiling grid.
• Protect open duct from debris/damage.

7. Testing & Commissioning

• Perform test and balance (TAB).
• Commission system with owner rep and GC.