HVAIMeet your field loop Compare eligible evidence
Keep the selected equipment and circuits explicit. Before comparing channels, review whether their sources, freshness and measurement context actually support the relationship being inspected.
Performance and pressure views
Understand what changed.
Read the sequence of events with clear channels, circuit context and honest gaps. A useful graph preserves the evidence.
Bounded graph interactions demonstratedCompare the sequence, then hold the view.Beautified product visualization · example data
Performance and pressure views
A moment. A relationship. A timeline.
01Set the view
02Inspect the timeline
03Relate events
Graphs & time / IN DEPTH
The work behind the interface.
Purpose, prerequisites and the evidence that belongs to the task.
A snapshot answers what a source reported at one moment. A graph can help a technician inspect how readings moved during the visit and how eligible channels relate over time. HVAI’s Pressure Graph and Map directions offer complementary ways to examine pressure context, while System View explains the physical process. The priority is a readable account of the evidence: labels, units, timestamps and circuit names matter more than decorative motion.
Keep gaps visible
A disconnected source creates a gap. It should not become an invented zero, a silently smoothed line or a copied value from another channel. Historical data must remain visibly historical.
Show the baseline basis
An actual-versus-target comparison needs an applicable expectation. Equipment configuration, refrigerant, operating mode, ambient conditions and available inputs can change which interpretation is supportable.
THROUGH THE TASKKeep the context
Keep the context
at each step.
Open a step to inspect what needs to stay clear.
01Set the view+
Select the relevant equipment, circuit and channels. Read the labels and units before treating visual movement as evidence about the machine.
02Inspect the timeline+
Use the graph to examine genuine changes and interruptions. Display refresh and instrument sampling are different rates; smooth screen motion does not establish a faster measurement cadence.
03Relate events+
Before-and-after observations and recorded events can help explain what changed. The sequence should preserve its measured basis rather than imply that the app performed a technician’s action.
04Review interpretation+
Inspect the applicable baseline and remaining limits. A deviation indication describes a comparison; it does not identify a specific fault or certify whole-system condition.
STATUS & EVIDENCE
Interaction proof and field proof are different.
Graph interaction was demonstrated within a bounded test scope at the 2 October checkpoint. This does not establish universal physical-device acceptance, deployed durable measurement history or instrument accuracy. Broader baseline guidance and durable records remain in development.