The Next Layer

The Next Layer | Chiller Log Performance Workflow

Free chiller workflow

The Next Layer

You’re already collecting the data. Start extracting the value.

Most chiller logs record the readings. The next layer explains what they mean.

1. Site Conditions

Ambient Dry Bulb (°F)

Ambient Wet Bulb (°F)

2. Evaporator Flow

Design Evaporator Flow (GPM)

Design Evap Pressure Drop (ft H₂O)

Tap unit to toggle ft H₂O / PSI

Evap Entering Water Pressure (PSI)

Evap Leaving Water Pressure (PSI)

3. Evaporator Load / Efficiency

Entering Chilled Water Temp (°F)

Leaving Chilled Water Temp (°F)

Design Chiller Tons (optional)

Chiller Input Power (kW)

4. Condenser Flow

Design Condenser Flow (GPM)

Design Cond Pressure Drop (ft H₂O)

Tap unit to toggle ft H₂O / PSI

Cond Entering Water Pressure (PSI)

Cond Leaving Water Pressure (PSI)

5. Condenser Readings

Entering Condenser Water Temp (°F)

Leaving Condenser Water Temp (°F)

The Next Layer

Calculated insight for the log sheet.

Measured Ambient

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Calculated Wet Bulb

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Estimated Evap Flow

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Estimated Cond Flow

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Calculated Evap Load

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Calculated Efficiency

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Calculated Tower Approach

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Copy Log Sheet Notes

Field note

This tool creates calculated context from the readings entered. Flow is estimated using the pressure drop method. It does not diagnose the chiller, verify sensor accuracy, or replace trend review. Use stable operating data and compare results against design, site baseline, and recent history before calling something a finding.

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The Next Layer

The Next Layer

You’re already collecting the data. Start extracting the value.

The Next Layer

Copy Log Sheet Notes

Field note