What is SITC in HVAC?

What is SITC in HVAC?

SITC in HVAC stands for:

S – Supply
I – Installation
T – Testing
C – Commissioning

It refers to the complete scope of HVAC execution, where one contractor is responsible for delivering a fully functional HVAC system, not just supplying equipment or installing parts.

Meaning of Each Term in HVAC SITC

 Supply

This includes procurement and delivery of:

• HVAC equipment (Chillers, VRF units, AHUs, FCUs)

• Ducting, piping, insulation, valves, and controls

• Accessories as per approved makes and specifications

 Ensures material matches consultant BOQ and submittals.

 Installation

Physical execution at site, including:

• Equipment placement and alignment

• Ducting fabrication and installation

• Chilled water / refrigerant piping

• Electrical power and control wiring

 Must follow approved drawings, standards, and site conditions.

 Testing

Verification that all installed components are correct and safe:

• Pressure testing of piping

• Duct leakage testing

• Electrical continuity and insulation tests

• Functional checks of equipment

 Detects defects before system operation.

Commissioning

Final stage where the HVAC system is made fully operational:

• Air and water balancing

• Controls and BMS integration

• Performance testing against design parameters

• Demonstration and handover to client

 Confirms the system performs as designed.

Why SITC is Important in HVAC Projects

• Single-point responsibility

• Better coordination and accountability

• Reduced delays and rework

• Improved system performance

• Smooth handover to client

Consultants and PMC prefer SITC contracts because the risk of interface issues is minimized.

SITC vs Only Installation (Simple Difference)

Where SITC is Commonly Used

• Commercial office buildings

• Hospitals and healthcare facilities

• Hotels and malls

• Data centers

• Industrial HVAC projects

In Simple Words

SITC means handing over a “ready-to-use HVAC system,” not just installing equipment.

At Vipul HVAC House, SITC is executed with focus on design compliance, site coordination, and long-term system reliability.