Data standard
Review the minimum credible plant record: supply and return temperatures, outdoor air temperature, boiler status, setpoint or reset-curve context, pump status where available, trend interval, gas history, and data-quality notes.
PENGAby GlacialRift
For technical reviewers
Pressure-test the work before field control.
This page is for operators, power engineers, mechanical reviewers, controls specialists, building-science reviewers, and professional engineering reviewers who can challenge the building story before plant-facing work is proposed.
Data standard
Comfort risk
Implementation gates
Review gate
Challenge before field work
Data qualityTrend interval, missing points, gas history, outdoor air context.
Comfort floorHow cold risk and overheating are reported together.
Active-control prerequisitesQualified review, operator override, fail-safe behaviour, insurance posture.
Review areas
Find weak assumptions early.
The work is meant to surface missing data, unsafe assumptions, integration risk, and comfort uncertainty before the owner treats predictive control as an active project.
Comfort language
How cold risk, overheating pressure, window-opening signs, and uncertainty are reported together.
Implementation prerequisites
The qualified review, fail-safe behaviour, operator override, insurance posture, and safety-code work a later control project would require.
Support letters
A useful review can support investigation without endorsing deployment.
That distinction matters. PENGA can be worth investigating in this building class while active control remains subject to later qualified review.
- It can state that the problem is worth investigating in older hydronic buildings.
- It can state that building-first investigation is a responsible way to reduce uncertainty.
- It can identify the data, safety, operator, and implementation conditions that must be satisfied.
- It avoids certifying design, guaranteeing performance, approving control, or replacing qualified engineering review.