Mode
--
YCOOL
GFAN
WHEAT
OREV
FFLOAT
Outdoor Context
Outdoor
--
Indoor − Outdoor
--
☀ OUTDOOR WEATHEROPEN-METEO--
Dew point → wet bulb → dry bulb
--
--
--
Weather context (Open-Meteo) — not a system sensor
Air System
Delta T
--
sensible
Moisture Removed
--
gr/lb · latent
Return Air
--
Return RH
--
XY-MD04 temp: -- · DS18B20: ----
Dew Point (Return)
--
--
Coil (VSAT): waiting for pressure reading
🔧 RETURN AIRSENSOR--
Dew point → wet bulb → dry bulb
--
--
--
Real sensor (XY-MD04) — feeds fan-speed control planning
Supply Air
--
Supply RH
--
XY-MD04 temp: -- · DS18B20: ----
Dew Point (Supply)
--
--
Psychrometric Analysis
Humidity Ratio — Return--
Humidity Ratio — Supply--
Absolute Humidity Difference--
Est. Moisture Removal Capacity--
Humidity Trend (per cycle)--
Coil vs. Dew Point (Return)--
Condensation Favorable--
Automatic DEHUM Control--
No pressure sensor connected — Superheat/Subcooling gauge unavailable.
Gauge
Superheat
— live calculation
— live calculation
Actual (Low Pipe Outside)--
−
Saturation (VSAT)--
Superheat
--
--
Low Side
psi
-- PSI
VSAT --
High Side
psi
-- PSI
LSAT --
Subcooling
— live calculation
— live calculation
Saturation (LSAT)--
−
Actual (High Pipe Outside)--
Subcooling
--
--
Approach Temperatures
Condenser Approach-- °F
waiting for LSAT + outdoor temp
--
Evaporator Approach-- °F
waiting for return air + VSAT
--
Condenser Approach = LSAT − outdoor (smaller = better heat rejection). Evaporator Approach = return air − VSAT (very low/negative = low airflow or dirty coil).
Line Temperatures — Outside vs. Coil
Low Pipe (suction/gas)
Outside
--
Δ
--
--
Coil (inside)
--
High Pipe (liquid)
Outside
--
Δ
--
--
Coil (inside)
--
Waiting for data…
Static Pressure — Sensor & Filter
Current reading
--V
Interpretation
--inWC
--
Zero
loading…
Sensor
--
Electrical
Compressor
--
Voltage
--
Run Capacitor — ZMPT101B
--
MFD
--µF
Deviation
--
Industry-standard tolerance: ±10% of rated value. Outside that range, the capacitor is degrading and should be replaced with the same rated MFD/voltage.
On / Off — Last 24h
--
Loading…
Raw device data --
System
Device Health
WiFi RSSI--
Free Heap--
Device Uptime--
Firmware--
created_at (raw)--
Calibration (read-only here — set via the source noted in each group)
Static pressure zero — ↺ Zero button above
Static Zero Baseline (V)--
Zero calibrated--
Refrigerant pressure offsets — set in equipment.html
Low Side Pressure Offset--
High Side Pressure Offset--
Temperature offsets — set in temp-calibrate.html (2-point)
Return Air Offset--
Supply Air Offset--
Low Pipe Outside Offset--
High Pipe Outside Offset--
Low Pipe Coil Offset--
High Pipe Coil Offset--
Leituras
Return / Supply Sensors
Two independent temperature sources per side — DS18B20 is the primary sensor used elsewhere on the dashboard; XY-MD04 is the humidity probe's own built-in temp, kept here mainly to cross-check the DS18B20 reading.
Return
RH--
Temp (DS18B20)--
Temp (XY-MD04)--
Supply
RH--
Temp (DS18B20)--
Temp (XY-MD04)--
Electrical (raw)
PZEM (line)
Voltage--
Compressor Amps--
Power--
Power Factor--
Capacitor (ZMPT101B) — preview, not live yet
Voltage (measured)--
MFD (measured)--
MFD (rated)--
Status--
Thermostat
--
Y — Cooling Call--
G — Fan Call--
W — Heat Call--
O — Reversing Valve--
Float Switch--
GPIO33 — DEHUM Relay--
Refrigerant Circuit (raw — SH/SC shown in the gauge panel above)
"PSI" is the converted pressure reading; "raw voltage" is the unconverted signal straight from that same transducer — shown together so a bad PSI reading can be traced back to the sensor itself.
Pressure transducers
Low side PSI--
Low side — raw voltage--
High side PSI--
High side — raw voltage--
Line temperature probes
Low side — outside--
Low side — coil--
High side — outside--
High side — coil--
Waiting for reading…
FROM:TO:
LIVE HVAC PERFORMANCE
Waiting for readings…
--:--:--
--
SYSTEM ON
--%
SYSTEM OFF
--%
MONITORED
--
GAPS EXCLUDED
--
Loading timeline…
Thermal Index formula — Return Rise Rate ÷ Driving Temperature, where: Return Rise Rate = ΔReturn ÷ OFF Time (°F/min) and Driving Temperature = Outdoor Avg − Return at OFF (°F). This tells you how fast the space heats up per degree of outdoor pull — already adjusted for how hot it is outside. Each cycle is compared to earlier cycles with similar outdoor temperature (±3°F); ±15% deviation = STABLE. Hover any OFF block or table row to see the formula worked out with that cycle's real numbers.
| # | When | OFF→ON | Return (start→end) | Outdoor (start→end) | Rise Rate | Thermal Index | Verdict |
|---|
HVAC MEASUREMENTS
| TIME | CALL | RETURN | SUPPLY | ΔT | STATIC | AMPS | OUTDOOR | O-RETURN | O-ΔT | CHANGE |
|---|
20-MINUTE RECORDER
This saves a test window. Readings stay in hvac_readings and are loaded by time range.
SAVED TESTS
Select a saved test
AVG ΔT
--
MAX STATIC
--
MAX AMPS
--
READINGS
--
CLIENT REPORT
Resumo visual pra enviar ao cliente
PERÍODO:
Escolha um período acima (24H, 7D ou 30D) pra gerar o relatório.