Installing an industrial cooler or refrigeration unit in an existing facility is rarely straightforward. Limited access, tight spaces, sensitive equipment, and the need to minimise production disruption all make cooler installations demanding projects. This guide explains the key considerations for successfully installing an industrial cooler and how to ensure the installation goes to plan.
What Makes Industrial Cooler Installations Challenging?
Industrial coolers — whether air-cooled condensers, evaporative coolers, chiller units, or process cooling systems — are heavy and often awkwardly shaped relative to the spaces they need to occupy. Condensers are typically installed in elevated external positions on rooftops, platforms, or plant structures. Chiller units may need to be placed in basement or ground-floor plant rooms with limited overhead clearance. Process cooling units in food and dairy facilities must be handled within hygiene-sensitive environments. Each of these installation contexts creates specific challenges for the rigging team.
Step 1: Assess the Location and Access
Before any cooler installation begins, the rigging team must assess the accessibility of the installation location. This includes measuring all access routes (doorways, corridors, lift openings, roof hatches) to confirm the cooler can physically reach its installation point, checking overhead clearances for crane boom operations, verifying the structural capacity of rooftops or elevated platforms to carry the cooler’s weight plus the dynamic loads from the crane during installation, and confirming ground conditions for the crane outrigger positions. Any constraints identified must be addressed in the installation plan before work begins.
Step 2: Prepare a Method Statement and Lift Plan
Every industrial cooler installation must be supported by a formal method statement and, for the crane operation, a specific lift plan. The method statement describes the sequence of the installation, the equipment to be used, the site-specific safety requirements, and the responsibilities of each person on the project. The lift plan details the crane configuration, rigging configuration, weight of the cooler, and the step-by-step sequence of the lift. Both documents should be reviewed and approved by the client before mobilisation.
Step 3: The Rigging and Lift
Cooler installations typically use a mobile crane to lift the unit from its transport vehicle to the installation point. The crane must be positioned to provide the required reach to the installation location, with sufficient capacity at that radius for the cooler’s weight. For rooftop installations, the crane must be able to set the cooler down precisely onto its support structure — which may require the banksman to guide the load into position using tag lines while the crane holds the weight. For ground-level installations in restricted spaces, chain blocks or gantry systems may be required for the final positioning phase.
Step 4: Precision Placement and Connection
Once the cooler is in its approximate installation position, it must be precisely positioned on its mounting frames, aligned to its service connections, and confirmed level before it is released. Any misalignment at this stage — even by a few millimetres — can create problems with refrigerant pipe connections, drainage, and the cooler’s operation. The rigging team should hold the unit under the crane while the installation team confirms alignment before the rigging is released.
Reef Rigging has extensive experience with cooler and refrigeration plant installations across food, dairy, and industrial facilities in South Africa. Contact the team to discuss your installation project.
Frequently Asked Questions: Industrial Cooler Installation
Can a rooftop cooler be installed without removing the roof?
Yes, in most cases. Rooftop coolers are typically installed using a mobile crane that lifts the unit over the building edge and sets it down on the rooftop support structure. The crane must have sufficient boom height and reach to clear the building edge at the required lift radius. For buildings with roof parapets, screens, or other obstacles, the crane configuration must be selected to clear these while maintaining capacity for the cooler weight. A detailed site survey before the project confirms whether this approach is feasible.
What is the maximum weight of cooler that can be installed on a standard industrial rooftop?
Rooftop load capacity depends entirely on the structural design of the specific building. There is no standard limit — it must be confirmed by a structural engineer for each installation. Industrial portal frame buildings typically have roof structures designed for wind loads and self-weight but not necessarily for the concentrated point loads of a heavy cooler. Before any cooler is placed on a rooftop, the structural engineer must confirm that the existing structure can carry the proposed load, or specify what reinforcement is required.