The software sold to refrigeration contractors is built for the service call — dispatch the tech, check the walk-in cooler, invoice the restaurant. A commercial refrigeration sub installing a compressor rack system for a cold storage facility isn’t running service calls. He’s running a construction job with four phases, a pressure test that has to clear before the refrigerant goes in, and a commissioning authority who won’t sign off until every circuit checks out.
The tools built for the service model don’t map to that job. Here’s how a commercial refrigeration scope actually runs, phase by phase, and what needs to be tracked at each one.
The Phases That Matter
Pre-Construction
Commercial refrigeration work requires as much pre-construction coordination as any mechanical trade, and more than most on the equipment side. Compressor racks, condensing units, and evaporators are engineered to the specific load calculation for the building — a supermarket’s case lineup, a cold storage facility’s rack configuration — and lead times on that equipment can run months.
Pre-construction locks in three things:
- Submittal package — compressor racks, condensing units, evaporators, and controls all need approval before fabrication or order placement. A rack sized for the wrong load calculation is a problem that surfaces at startup, not at submittal review, unless someone caught it early.
- Refrigerant selection and code compliance — ammonia, CO2, and synthetic refrigerant systems each carry different code requirements for piping material, ventilation, and safety systems. Getting this wrong at design isn’t a field fix.
- Phase-by-phase labor budget — piping, equipment setting, controls, and startup have completely different crew profiles and risk levels. A single “refrigeration labor” line item can’t tell you which phase is actually driving a budget overrun.
Refrigerant Piping
Refrigerant piping is where a commercial refrigeration job either holds its schedule or starts losing it. The piping crew runs suction, liquid, and hot gas lines — copper for most synthetic refrigerant systems, carbon steel or stainless for ammonia — through a building that other trades are also occupying.
Coordination matters here more than on most piping scopes: refrigerant lines share ceiling space with HVAC ductwork, electrical conduit, and structural elements, and a routing conflict discovered in the field costs a full day of rework that a coordination review would have caught for free.
What needs to be tracked:
- Piping progress by system and by zone or rack
- Coordination conflicts with other trades, logged the day they happen
- Pipe material and joint type by system — critical for ammonia systems where joint requirements are code-driven
- Hours by cost code — piping labor is typically the largest single line item on a refrigeration job
Equipment Setting
Equipment setting on a refrigeration job means compressor racks, condensing units, evaporators, and — depending on the system — fluid coolers or pumps for secondary loop systems. A supermarket refrigeration project can have sixty to eighty individual pieces of equipment across a dozen temperature zones; a cold storage facility might have fewer pieces but each one significantly larger.
Rigging and crane coordination matters here the same way it does on any large mechanical equipment set — pads need to be poured, structural support confirmed, and crane access scheduled before the equipment shows up, not after.
What needs to be tracked:
- Equipment status by tag number — delivered, set, piping connected, electrically connected, startup-ready
- Nameplate and submittal data captured at setting, not reconstructed later
- Deviations from approved submittals, documented the day equipment arrives
- Rigging and crane day scheduling tied to site readiness
Pressure Testing
Pressure testing is the hard gate before refrigerant charge on every commercial refrigeration system. The entire circuit — suction, liquid, and hot gas lines — has to hold test pressure for a defined duration with no drop before charging begins. A failed test means locating the leak, repairing it, and retesting before the schedule can move forward.
The test record matters as much as the test itself: system section, test medium (nitrogen or recovery refrigerant), test pressure, duration, result, and who witnessed it. On most commercial refrigeration contracts, pressure test completion is also the trigger for a milestone payment — which makes the record not just a technical requirement but a billing one.
What needs to be tracked:
- Pressure test records by system — pressure, duration, medium, witness, result
- Leak location and repair documentation for any failed test
- Retest dates and results
- Charge authorization tied to a passed test, not assumed
Controls and Commissioning
Controls on a refrigeration job — safeties, electronic expansion valves, rack controllers, and the interface to the building’s BAS — is where the schedule is most exposed to delays outside the refrigeration sub’s control. The BAS contractor has to provide communications. The electrical contractor has to terminate power to every condensing unit and evaporator. If either is late, the startup crew shows up with nothing to commission.
Startup itself runs circuit by circuit: refrigerant charge, superheat and subcooling verification, safety testing, and expansion valve tuning — often with the commissioning authority and controls contractor present at the same time, across multiple zones simultaneously.
What needs to be tracked:
- Controls coordination delays, logged with cause and responsible party at the time they happen
- Circuit-by-circuit commissioning status
- Refrigerant charge amounts by system — required documentation regardless of refrigerant type
- Commissioning exceptions and resolution status
What Your PM System Actually Needs
Track labor by phase and cost code
Piping, equipment setting, controls, and startup have different productivity rates and different risk profiles. Hours tracked by phase against a phase-specific estimate — not one “refrigeration labor” total — is how a PM catches a controls overrun in week eighteen instead of discovering it at closeout.
Capture pressure test and equipment data at the point of work
A pressure test record written up from memory two days later isn’t the same record as one created at the gauge. Photos and field notes captured at the moment, tied automatically to the system and date, are the documentation that holds up when a leak surfaces eighteen months after startup and someone asks whether the system was properly tested.
Document controls delays the day they happen
A delay claim built from dated field entries — which contractor was late, what it blocked, how long the crew sat idle — is defensible. A delay claim reconstructed from memory three weeks after the fact is an argument, not a record.
Generate commissioning reports without manual assembly
The GC and the commissioning authority both want to know what happened during startup. Reports compiled automatically from field entries — circuit by circuit, issue by issue — save the startup foreman from writing a summary from memory at the end of a long commissioning day.
Running a Tighter Refrigeration Job
Commercial refrigeration work carries more documentation weight than most mechanical scopes — pressure test records that protect against warranty claims years later, equipment tracked by tag number across dozens of pieces, and commissioning records the building owner will reference for the life of the system.
A project management system built around how refrigeration work actually flows — from submittal through pressure test to commissioning — gives the PM the visibility to stay ahead of those requirements instead of reconstructing them after the fact.
For the mechanical scope that often runs alongside commercial refrigeration — HVAC, piping, and controls on the same job — see mechanical contractor software.
See how LogLoon works for commercial refrigeration subs, or check the pricing — it’s on the website.