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This conversation is a detailed walkthrough of supermarket refrigeration installation. We cover phases from pre-construction drawings, bidding, ordering, kickoff meetings, and coordination with other trades, through layout before concrete, trench and overhead piping, hangers, brazing with nitrogen purge, section-by-section pressure testing and documentation, and deep/triple evacuation. We'll also discuss commissioning and startup basics, including verifying sensors/controls, charging strategy, oil system checks, staged circuit startup, and final turnover items.

In this episode, we cover:

(02:48) Why Installation Is Important for Refrigeration Techs to Know

(05:01) Preconstruction Drawings and Planning

(07:34) Ordering Gear and Timelines

(09:16) Kickoff Meetings and Trade Coordination

(10:47) Pipe Routes, Trenches and Hangers

(15:34) Equipment Placement and Roof Curbs

(16:46) Brazing Specs and Rough-In Checks

(24:49) Pressure Testing

(26:49) Drains, Walk-In Boxes and Coil Layout

(30:56) Hanging Evaporator Coils

(32:22) Roof Flashing Tips

(34:34) Pressure Test Evac

(38:32) Controls Wiring Layout

(43:00) Leak Proof Brazing

(46:03) Charging

(47:50) Oil System Startup

(52:57) Final Commission Turnover

Helpful Links & Resources:

Episode 373. Installation Prep for a CO2 Refrigeration System

Episode 160. Things to Know When Installing and Servicing CO2 Refrigeration Systems

Episode 81. Challenges Faced When Installing CO2 Systems