CORE Service vs RefCalc

This app is the interface for the Lennox® CORE Unit Controller in Model L (L*M), Enlight (L*T), Xion (L*X) and Strategos (S*H) Commercial Rooftop Units. You must be within 25ft of a unit to connect and utilize this app. The Lennox® CORE Control System reinvents the service process in the palm of your hand with a wireless mobile service app, making setup and service faster than ever before. This app is intended for commercial HVAC service technicians to interface with CORE Unit Controller equipped unitary packaged rooftop units. App Features: - Guided Setup with progress indicators, detailed help, and exportable summaries drive simple and trouble-free setup, reducing commissioning times over similar systems. - Enhanced Test Functionality provides real-time sensor readings, trending, and reports that enable easy troubleshooting. - Ability to set and configure parameters of the CORE Control System drive tailored sequences of operation and make the CORE Unit Controller the most flexible Lennox has to offer.

RefCalc is the fast, offline Pressure–Temperature chart and Superheat/Subcooling calculator built for HVAC/R technicians — no subscription, no ads, one-time purchase. CHECK CHARGE IN SECONDS Enter suction pressure and suction line temperature to get instant superheat. Enter liquid line pressure and temperature to get instant subcooling. Color-coded results show at a glance whether you're in range. FULL PT CHART, ANY REFRIGERANT Type a pressure, get the saturation temperature. Type a temperature, get the saturation pressure. For blend refrigerants, RefCalc shows both bubble point and dew point plus the glide between them — the detail cheap PT apps get wrong. BUILT-IN REFRIGERANTS R-410A, R-32, R-454B, R-452B, R-22, R-134a, R-404A, R-407C, R-448A/R-449A, R-290, R-1234yf, R-513A — including the newer A2L mildly-flammable refrigerants (R-32, R-454B, R-452B) that older apps don't support. WORKS YOUR WAY • psi / bar / kPa / MPa • Gauge (psig) or absolute (psia) reference • °F or °C • 7 languages: English, Spanish, Chinese, Portuguese, Japanese, Korean, Vietnamese 100% OFFLINE No account, no internet permission, no analytics, no ads. Your data stays on your device. Buy once, use forever. Refrigerant data sourced from NIST REFPROP and manufacturer/ASHRAE published PT charts. RefCalc provides the math — always confirm final charge against the equipment nameplate or OEM charging chart.