Case Study: Ensuring Accurate HVAC Supply Air Temperature (SAT) Measurement
How Proper Data Logger Installation Optimized Airflow Monitoring at a Mall in Singapore?
Client: Gold Ridge Pte Ltd
Contact: Jason Han, Manager, Operations (M&E)
Industry: Retail (NEX Shopping Mall – Bread Talk Outlet)
Location: Singapore
Challenge: Inconsistent temperature readings due to improper sensor placement.
Solution: Techtimia Engineering’s precision data logger installation.
Result: Reliable SAT data, 12% energy savings, and long-term HVAC efficiency.
Challenges faced by a Mall in Singapore
A mall in Singapore required accurate Supply Air Temperature (SAT) measurements for an HVAC performance audit at Nex Mall’s Bread Talk outlet. Initial logger placement led to unreliable data due to:
- Sensor misplacement (too close to or outside the diffuser).
- Airflow obstruction from dampers and grilles.
- Heat conduction errors from improper mounting.
These issues caused ±3°C fluctuations and only 65% data reliability, impacting system diagnostics.
Solution offered by Techtimia Engineering
Techtimia Engineering implemented a 3-step precision installation protocol:
- Strategic Logger Placement
- Positioned 5 inches (12 cm) inside the diffuser grille to capture laminar airflow.
- Avoided turbulence zones near dampers and edges
- Non-Conductive Mounting
- Used foam-based brackets to isolate the logger from heat-conductive surfaces.
- Suspended the sensor with a thin wire to minimize airflow disruption.
- Calibration & Validation
- Pre-installation calibration against a reference thermometer.
- Post-installation spot-check verification for consistency.
The Results
Key Outcomes:
✔ Accurate SAT data for precise HVAC diagnostics.
✔ 12% energy savings from optimized airflow.
✔ Stable, long-term monitoring enabled.
Client Testimonial
“Techtimia’s methodical approach resolved our inconsistent temperature data issues. Their attention to airflow dynamics and sensor placement was impressive.”
— Jason Han, Manager, Operations (M&E), Gold Ridge Pte Ltd (NEX Mall / Bread Talk)
Why This Matters for Your Facility?
Improper sensor placement can skew HVAC performance data by up to 30%. This case study demonstrates:
- Minor positioning adjustments yield major accuracy improvements.
- Non-conductive mounting is essential for reliable industrial measurements.
- Pre-installation calibration avoids costly rework.
Related Services
HVAC and ACMV Services, Singapore
Need precise HVAC monitoring?
Contact Techtimia Engineering for a free site assessment.
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