The Next Layer

Guided chiller workflow

Chiller Performance Snapshot

Turn one set of inspection readings into a calculated performance snapshot with flow, load, efficiency, and cooling tower context for the field record.

Build a copy-ready performance snapshot from the readings already collected during a chiller inspection. The result adds calculated context that can be reviewed against design data and comparable operating history.
1

Operating Conditions

Enter measured ambient conditions. Wet bulb is used for tower approach.

°F
°F
tons
2

Evaporator Water Side

Design pressure drop defaults to feet of water. Measured entering and leaving pressures default to PSI. Tap any unit to switch it.

GPM
ft H₂O
PSI
PSI
°F
°F
3

Condenser Water Side

Design pressure drop defaults to feet of water. Measured entering and leaving pressures default to PSI. Tap any unit to switch it.

GPM
ft H₂O
PSI
PSI
°F
°F
4

Electrical Input

Total chiller kW is used with calculated evaporator tons to determine kW/ton.

kW
Build My Snapshot

Chiller Performance Snapshot

Calculated Results

Powered by ChillerTrend.com
Estimated evaporator flow
Not calculated
Evaporator water ΔT
Not calculated
Calculated evaporator tons
Not calculated
Estimated condenser flow
Not calculated
Condenser water ΔT
Not calculated
Estimated condenser tons
Not calculated
Percent of design load
Not calculated
Calculated efficiency
Not calculated
Cooling tower approach
Not calculated
These calculations add operating context to the entered readings. Flow and condenser heat rejection are estimates. The results do not establish root cause, verify sensor accuracy, or prove equipment condition.
Advanced: formulas, assumptions, and warnings

Flow estimate

Estimated GPM = Design GPM × √(Measured ΔP ÷ Design ΔP)

Every pressure field can be entered independently in feet of water or PSI. PSI values are converted using 2.31 ft H₂O per PSI before the pressure-drop ratio is calculated.

Evaporator load

Tons = GPM × Evaporator ΔT × 500 ÷ 12,000

Condenser heat rejection

Condenser tons = GPM × Condenser ΔT × 500 ÷ 12,000

Efficiency

kW/ton = Total chiller kW ÷ Calculated evaporator tons

Warnings

Use stable readings and verified instruments when accuracy matters. Pressure-drop flow is an estimate and depends on correct design data, pressure taps, fluid properties, and measurement quality.

Need the history behind the numbers?

Chiller Trend saves the readings, calculations, and operating context so service teams can compare inspections and see what changed.

See How Chiller Trend Works →