Manual Override Analysis — March 4, 2026 Evening Walkthrough

Chase's interventions across three flower rooms at different growth stages
F4 (Rm 415) — Week 8, Target 71°F / 1.15 kPa
F5 (Rm 416) — Week 2, Target 79°F / 1.15 kPa
F6 (Rm 417) — Week 6, Target 75°F / 1.35 kPa
Temperature Timeline: Setpoints & Room Temps (16:00–00:30)
Solid lines = actual room temperature, dashed/dotted = setpoint changes. Annotations mark key intervention phases.
F4 Room Temp
F4 Setpoint
F5 Room Temp
F5 Setpoint
F6 Room Temp
F6 Setpoint
VPD During Override Period (16:00–00:30)
Horizontal reference lines show each room's target. Green band = target ±0.1 kPa, yellow = ±0.2, red = beyond acceptable range.
On Target ±0.1
Acceptable ±0.2
Beyond Target
F5 Full Day VPD Profile (00:00–24:00) — Humidity Crisis Detection
Shows the dramatic RH crash around 12:00 (noon), spiking VPD to 2.09 kPa. Evening overrides attempt to stabilize before night.
F4 Override Summary Week 8
Total setpoint changes:
15
Time window:
16:39–23:47 (7h 8m)
Avg hold time per setpoint:
~29 min
Final setpoint:
64°F (confirmed 3× in verification)
VPD stability (final state):
±0.06 kPa
F5 Override Summary Week 2
Total setpoint changes:
42
Time window:
16:37–22:39 (6h 2m)
Median hold time per setpoint:
~2 min (rapid oscillation)
Oscillation pattern:
78°F ↔ 80°F (continuous toggle)
Peak VPD (noon crash):
2.09 kPa (RH 38%)
F6 Override Summary Week 6
Total setpoint changes:
1
Time of change:
18:51 (single nighttime adjustment)
Adjustment:
74°F → 71°F
Room response time:
~70 min to settle (72.2→68.5°F)
Post-adjustment stability:
VPD std dev ±0.02 kPa/hr
Key Insights & Analysis
F4 (Week 8 Flower) — Deliberate Ramp Testing & Verification
Target 71°F / 1.15 kPa, running final state 65°F / 1.10 kPa. Chase executed a methodical three-phase approach: oscillation testing (68°F ↔ 70°F), a hot push experiment (peaking at 76.3°F with VPD spike to 1.471), then a crash cool to 64°F. The final verification pattern (64°F → 66°F → 64°F repeated 3×) confirms systematic confirmation behavior. Room is slightly conservative on temperature but achieving excellent stability at week 8. The 8-minute oscillation period during phase 1 suggests operator is tuning the room's response characteristics.
F5 (Week 2 Flower) — Humidity-Limited Equipment, Rapid Oscillation Search
Target 79°F / 1.15 kPa, running 79°F but VPD 1.40–2.09 kPa (severely above target). The 42 rapid toggles between 78°F and 80°F (avg 2-min holds) indicate Chase is searching for stability in a humidity-constrained environment. The dramatic RH crash to 38% at noon (VPD 2.09) reveals the core bottleneck: dehumidification equipment cannot remove enough moisture during peak heat. The 2°F setpoint swing appears to be the minimum meaningful adjustment resolution for this HVAC system. Note: intensive session at 18:53–19:47 with 19 changes in 54 minutes suggests deliberate troubleshooting push.
F6 (Week 6 Flower) — Confident Intervention, Below Target
Target 75°F / 1.35 kPa, running 70°F / 1.08 kPa. Single adjustment at 18:51 (74→71°F nighttime drop) shows confidence—no iteration or verification needed. Room is overcooled relative to target, which may be deliberate for late-veg/early-flower preservation. Excellent stability post-adjustment (±0.02 kPa/hr VPD deviation) indicates well-tuned HVAC response and no further operator intervention required.
Operational Patterns & Equipment Insights
The 78°F ↔ 80°F rapid oscillation in F5 (42 changes, 2-min median) defines the practical minimum setpoint resolution—operators cannot effectively control below ~2°F swings with this equipment. F4's methodical testing (8-min oscillations, hot push ramp, verification repeats) shows systematic operator technique optimizing for late-stage flowering. F6's single confident adjustment suggests room-specific tuning is complete. The three-point verification in F4 (repeating 64→66→64 three times) is likely confirming HVAC system behavior under specific conditions, possibly documenting system response for future reference.
Dashboard generated March 4, 2026 • Data period: 16:00–23:47 (main), 00:00–24:00 (F5 full day)