Chiller Readings Dashboard

Twice-per-shift readings for Chiller #1 & #2 — log entries and chart trends.

⬇ Export to Excel

Log a Reading

Chiller

Date

Time slot

Notes

Leave fields blank when the chiller (or a reading) isn't running — blanks show as gaps in the charts, not zeros.

Import CSV

Bulk-load readings from a CSV. Required columns: chiller, date, slot; everything else is optional and blank cells are left empty. Headers accept either the field keys or the sheet labels.

Skip existing Overwrite existing

Trends

Chiller #1 Chiller #2 6/10 benchmark Scope Benchmark

Flow per chiller: #1 chw cond GPM #2 chw cond GPM Tons = GPM × ΔT ÷ 24. Defaults = 250-ton design (600/750); chilled evap rating 960 GPM max. When both chillers run the pumps roughly split, so set each chiller's actual flow here.

Compressor kW calibration (1 point = linear through 0; add a 2nd point = affine fit): #1 kW @ % RLA · 2nd: kW @ % #2 kW @ % RLA · 2nd: kW @ % Measured: #1 = 106.9 kW @ 69% RLA (1 pt). #2 = 98 kW @ 68% + 155.9 kW @ 100% spec nameplate (affine, kW ≈ 1.81·RLA − 25). Drives Compressor Power & energy balance.

Fallback estimate (used only if calibration is cleared): rated A Volts PF kW = √3·V·A·PF, A = RLA% × rated. VFD-driven (Trane Agility), so this is rougher than the measured calibration above.