Why so many HVAC installations have issues after handover
An HVAC installation might be technically built according to specifications, but that doesn’t always mean it performs as intended. Many systems are handed over with hidden issues: short cycling, unstable control, or zones that consistently receive too much or too little flow.
The root of the problem? Errors in the design and transfer phase that go unnoticed during installation.
The most common mistakes in HVAC installation
Certain issues appear repeatedly on site:
- Oversizing of pumps and boilers → causes short cycling and unnecessary energy consumption
- Incorrect valve settings → leads to flow imbalance and pressure problems
- Missing or inconsistent documentation → installers are forced to make assumptions that deviate from the design
- Poor zoning or incorrect commissioning sequence → results in comfort complaints and inefficiency
Avoiding these mistakes starts long before the first pipe is installed.
How validation prevents mistakes
By working with validated data and clear specifications during the design phase, potential problems are revealed before they reach the site. This allows for:
- Optimising flow and pressure drop for all circuits
- Validating valve and pump selection based on real load
- Testing control logic in multiple scenarios
- Aligning zones and sequencing for both peak and part load
With these insights, the HVAC installation arrives on site as a clear plan—not a guess.
Read how validated design prevents mistakes in HVAC installations ›
FAQ: HVAC installations