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HVAC, Plumbing, Electrical, or other field serviceDiagnostics & Troubleshooting4HighHVAC Field Technician$ implied

New replacement EXV valve won't fully close on a chiller, causing refrigerant bypass and inefficiency, despite ruling out common causes.

No software tool exists that can interface with the MicroTech III controller to diagnose stepper driver issues or adjust valve parameters from a mobile device.

Severity

4High

Willingness to Pay

implied

Added

Apr 28, 2026

Implied Software Gaps

Mobile app that interfaces with chiller controllers for valve diagnostics and calibration

App Concept

ChillerEXV Diagnose

A mobile app that connects to chiller controllers via Bluetooth or Wi-Fi to test and calibrate EXV valves. It reads valve position data, commands precise steps, and identifies electrical faults like weak stepper drivers or wiring mismatches, replacing manual multimeter checks and guesswork.

Key Features

Wireless interface to MicroTech III and common chiller controllers
Automated EXV calibration and homing verification
Stepper driver health diagnostic with torque estimation
Step-by-step wiring validation guide with phase detection

Target Users: HVAC field technicians and chiller service companies managing Daikin, McQuay, and similar systems

Revenue Model: $49/mo per user subscription with a free 14-day trial

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