150-ton Mammoth AHU. Post-treatment only (Jul-Sep 2016 hourly data). No pre-treatment raw data — cannot compute improvement from raw data. 9-year persistence EER available.
Data Conflict — Two Different EER Baselines
2016 Savings Summary (xlsx):EER pre 3.2 → post 8.4 (+163%)
Avg EER across all hours including low-load. Likely includes off/cycling readings.
Persistence CSV (2024):EER pre 8.73 → post 9.91 (+13.2%)
Genuine measured EER at representative operating conditions. 9-year value 9.89 (0.2% degradation).
Post-Treatment Performance Profile
Post-treatment readingsOutdoor temp (right axis)No pre-treatment data available for this unit
Data Window
Post-Treatment (Only Available Period)
Readings
366
2016-07-14 → 2016-09-06
Avg EER7.04 Btu/Wh
Avg Power37.24 kW
Persistence (EER)
9-Year EER Persistence
From persistence study (not OAT-binned raw data). Single measured EER data points.
8.73
EER Pre (2016)
9.91
EER Post (2016)
9.89
EER 9-Year (2024)
0.2%
Degradation
IPMVP Compliance
Insufficient
IPMVP Option B · Retrofit Isolation
0
OAT Bins
0 / 366
Readings Pre / Post
0 / 54
Window (days)
Post-treatment data only — no pre-treatment baseline.
