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Cleanroom HVAC and Air Handling Equipment
Modular Air-Cooled Scroll Chiller
An expandable chilled-water system built from parallel air-cooled scroll modules that stage together as cleanroom cooling demand grows.
- Expandable Parallel Modules
- Independent Refrigerant Circuits
- Fine Capacity Staging
- Serviceable Without Total Shutdown
Product Introduction
The modular air-cooled scroll chiller divides plant capacity among compact factory-built modules connected to common chilled-water headers and a coordinating controller. Each module contains scroll compressors, a liquid heat exchanger, condenser coil and fans. Additional modules increase capacity without replacing the original plant, while multiple compressors provide small operating steps. Isolation valves and independent circuits allow one module to be serviced while the remaining modules continue supplying partial cooling.
Key Features
Multiple scroll compressors provide small capacity steps and useful low-load turndown.
Independent refrigerant circuits confine a service event to one module rather than the complete plant.
A common controller rotates lead duty and stages modules against leaving-water temperature.
Customer Product Concerns
A growing facility needs enough initial cooling without buying an oversized single chiller that will cycle inefficiently for years.
Initial cleanroom load is small but future production phases require more capacity.Additional matched modules connect to the common headers and controller as demand grows.
One chiller failure removes all process cooling.Independent modules continue operating at the remaining available capacity.
Unequal water flow causes some modules to trip while others carry little load.Reverse-return headers, balancing valves and coordinated pump control distribute flow.
Modules accumulate unequal compressor hours.Lead-lag rotation balances starts and run time across the staged plant.
Typical Applications
Phased cleanroom expansionsSmall pharmaceutical plantsLaboratory campusesMedical-device manufacturingProcess cooling with staged demand
Technical Parameters
Representative single-module construction and chilled-water insulation data are listed below.
| Core Material | Rigid polyisocyanurate foam around the brazed-plate evaporator and chilled-water headers |
|---|---|
| Panel Thickness | 1.0–1.5 mm removable module enclosure panels |
| Effective Width | 800–1500 mm nominal width per module |
| Maximum Length | 1900–2550 mm per factory module |
| Steel Facing Thickness | 1.0–2.0 mm galvanized module frame and service panels |
| Core Density | 32 kg/m³ nominal rigid polyisocyanurate insulation |
| Thermal Conductivity | 0.023 W/(m·K) at 10°C for the polyisocyanurate insulation |
| Surface Finish | Outdoor powder-coated galvanized steel with aluminum-copper or microchannel condenser |
| Joint Type | Bolted modular bases with common grooved water headers and independent isolation valves |
| Customization | Available based on the intended application and operating environment. |
Available Options
Two to sixteen coordinated modules with common headersIntegrated primary pump and buffer tankLow-ambient and low-noise packagesHeat-pump or cooling-only module configuration
Planning a Modular Air-Cooled Scroll Chiller specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
