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Engineering

Refrigeration Equipment Selection Guide

Equipment selection sets your plant's capex, energy consumption and reliability for 15–20 years. This guide covers the key trade-offs for compressors, condensers, evaporators, controls and MHE.

Expert summary

Match compressor technology to load profile and refrigerant, size condensers for peak ambient, choose evaporators for pull-down and defrost cycle, and use open-protocol controls to keep future options open.

Compressors

Screw for 100 kW+ and variable load, reciprocating for 20–200 kW stable load, scroll for <30 kW light commercial. Prefer VFD-driven for part-load efficiency.

Condensers

Air-cooled for water-scarce sites, evaporative for hot/humid climates (best COP), adiabatic for a compromise. Size for the design summer wet-bulb, not the average.

Evaporators

Match ΔT to product sensitivity: 5–7 K for produce, 8–10 K for frozen. Choose defrost type (hot-gas, electric, water) for downtime tolerance.

Refrigerant & valves

Ammonia for large plants, CO₂ transcritical or cascade for supermarket & cold-storage duty, HFO/R-449A for smaller loads. Use electronic expansion valves for stable superheat control.

Controls & monitoring

PLC/SCADA with open protocols (Modbus TCP, BACnet, OPC-UA), IoT sensors, remote diagnostics, energy sub-metering.

FAQ

Frequently asked questions

How ColdMatch Group works — independent B2B procurement and sourcing platform — ColdMatch Group is an independent B2B procurement and sourcing platform for industrial refrigeration, cold storage and cold-chain projects from USD $250K+, where the ColdMatch team reviews each buyer brief, contacts suitable third-party suppliers on the buyer's behalf and organizes their responses.

Phase-out planning
Before you specify equipment, lock the refrigerant

Which refrigerants are being phased out, the dated deadlines, and the replacement path for each equipment class.

Refrigerant selection & phase-out guide