Start with the chilled-water symptom
This module keeps water-side logic separate from DX refrigeration. It compares iCOM cooling demand, valve command and feedback with actual water flow, temperatures and air-side performance.
PROBLEM TO DIAGNOSE
Choose the closest symptom. Exact alarm wording can be entered on the next screen.
CHILLED-WATER CONFIGURATION
Safety: Chilled-water systems contain pressurized fluid, hazardous electrical voltage, moving fans, cold surfaces and possible hot reheat components. Use lockout/tagout, required PPE and the approved isolation/depressurization procedure before opening piping, strainers or valves.
Fast path: Select the problem and enter only readings already available. The most relevant water, air or humidity section opens automatically.
iCOM COOLING AND VALVE STATUS
Optional. Type the event exactly as displayed.
WATER-SIDE READINGS
AIR-SIDE AND COIL READINGS
CONDENSATION AND HUMIDITY INTERACTION
Chilled Water Buddy calculates return-to-supply air delta-T, leaving-to-entering water delta-T and room dew point when enough readings are entered.
Primary finding
Complete the conditions first
Valve Command / Feedback—
Water ΔT—
Air ΔT—
WHAT SHOULD BE HAPPENING
MOST LIKELY CAUSES
DIAGNOSTIC ORDER
Field reminder: Do not condemn the chilled-water valve or iCOM board until building water availability, isolation/balancing valves, strainer, actuator power, command, feedback, coil airflow and sensor accuracy are verified.