Chiller Plant Enclosure

Yes. ETENZ supplies the enclosure and its own subsystems, up to a chiller-plant-ready unit: structure, equipment bases, pipe supports and penetrations, lighting and power, ventilation and refrigerant alarms, fire protection and drainage, all installed and factory-checked. The chillers, pumps, heat exchangers, valves, piping and plant controls are selected, supplied, installed and commissioned by you or your plant integrator, and plant capacity and efficiency follow the equipment and design data.

That depends on the plant design. Typical contents are chillers, chilled-water and condenser-water pumps, plate heat exchangers, water treatment and pressurization units, valves and piping, switchboards and plant controls. For liquid-cooled data centers the enclosure may hold only plate heat exchangers and pumps, with dry coolers or cooling towers outside, and keep space, pipe openings and power circuits for chillers added later as trim cooling. The layout of bases, openings and service space follows that equipment list.

No. Size follows the equipment dimensions, operating weight, tube-pull length and service aisles. A plant that fits a high-cube container keeps the ISO 20 ft or 40 ft outline, which is the simplest to ship; a larger one becomes a widened or lengthened enclosure that ships as out-of-gauge cargo, or several modules joined on site.

Yes. Equipment, pump and electrical modules can be joined side by side, with the connections between modules prepared in the factory. Cooling towers or dry coolers on the roof stand on a separate steel platform with stairs and guardrails. On site the installer makes the module-to-module piping and cabling and commissions the plant.

R1234ze, R32 and R454B are mildly flammable (A2L). Electrical equipment and lighting inside the enclosure are then selected for the standard's ignition-source requirements, and anything that does not meet them is interlocked to switch off on a refrigerant alarm. Gas detection, alarms and the emergency exhaust fans stay powered: the alarm starts the exhaust and it keeps running, and the fans themselves are also selected for the ignition-source requirements. Detection and exhaust follow the stricter requirements of the standard your designer names. Non-flammable refrigerants such as R513A and R1233zd use the normal machinery-room arrangement. The chiller supplier and the designer choose the refrigerant; the enclosure is configured to that refrigerant and its charge.

The enclosure is insulated with rock wool, and the insulation runs continuous where chilled-water pipes pass through the wall. The floor falls to drain channels with leak sensors, and condensate and drain pipes leave the enclosure separately. Humid sites can add dehumidification or air conditioning.

Where noise matters, the walls get an acoustic lining and the intake and exhaust use acoustic louvers, sized from the chiller's sound data and the site limit. For air-cooled chillers, intake and discharge openings are sized for the condenser airflow, with the discharge pointed away from the intake so hot air does not recirculate.

Single units that keep the ISO 20 ft or 40 ft high-cube outline can have CSC approval arranged per project and ship as standard containers; since equipment doors and pipe openings change the box, the approval body decides between a supplementary approval and new tests. A two-level plant also ships module by module and is stacked on site, so whether each module can carry CSC approval depends on its outline and structure as shipped. Widened or lengthened units ship as out-of-gauge cargo without CSC, with route and permits confirmed per project.

Yes. Chiller manufacturers and plant integrators specify their own exterior color, nameplate and documents, and we build and integrate to your drawings with one build standard across a series.

The plant layout or equipment list (chiller, pump and heat exchanger dimensions, weights, support points and tube-pull lengths), the piping diagram and connection positions, refrigerant type and charge, heat release and electrical loads, site climate and altitude, transport limits and the codes of the destination market. If some data is missing, we start from the equipment list with an enclosure proposal and close the open points one by one.