Refrig is Windows software for calculating total 24‑hour refrigeration loads for walk‑ins, reach‑ins, coolers, and freezers using ASHRAE procedures. It accounts for exterior, internal, product, infiltration, defrost, compressor run‑time, and safety factor loads, with continuous on‑screen load totals during input. Built‑in weather data for 300+ cities and a product library (fruits, vegetables, meats, etc.) enable automatic product cooling, freezing, sub‑cooling, and respiration loads. After computing loads, users can specify refrigerant and temperature difference (TD) to select evaporator coils and condensing units from built‑in libraries, mixing and matching components as needed; catalogs include hundreds of coils and condensing units from major manufacturers. The program supports English and metric units.

Key Features

24‑hour refrigeration load calculations Comprehensive, standards‑based loads.

• Computes total daily loads for refrigeration boxes per ASHRAE procedures.
• Continuously displays running load totals on input screens for transparency.

All load components covered Full accounting of gains and operations.

• Exterior and internal loads including roofs, walls, partitions, floors, lights, equipment, and people.
• Product, infiltration, defrost, compressor run‑time, and optional safety factor loads.

Built‑in data libraries Faster, accurate inputs and selections.

• Automatic design weather lookup for 300+ cities.
• Product load library for common goods (fruits, vegetables, meats, etc.) with cooling/freezing/sub‑cooling/respiration loads.

Equipment selection assistance From load to components.

• Built‑in coil and condensing unit libraries with ability to mix and match.
• Specify refrigerant and TD to quickly identify suitable evaporator and condensing units.

Dual unit systems Global usability.

• Works in English (IP) and Metric (SI) units.

Benefits

Accurate sizing aligned with ASHRAE Reduces oversizing/undersizing risk.

• Uses established ASHRAE procedures and includes all major load categories.
• Continuous totals help validate inputs and avoid omissions during data entry.

Faster design-to-selection workflow Shortens time from load calc to equipment choice.

• Built‑in product, weather, and equipment libraries minimize manual lookups.
• Mix‑and‑match coil/condensing selections streamline iteration with chosen refrigerant and TD.

Improved documentation and consistency Repeatable, clear results.

• Standardized inputs and methods support consistent results across projects and teams.