A place to learn about Multistack Modular Chiller Products. Multistack, Originators...Innovators...Never the Imitators!

The modular water chiller was invented by Multistack. It started with a radically simple idea: water chillers made up of modules that could be brought into the equipment room one at a time, through standard doorways and down elevators, to form a fully integrated water chiller system. The modular chiller idea launched a revolution and transformed Multistack into a leader in the commercial water-chiller industry.

Multistack perfected the modular chiller and leads the industry in innovative and environmentally friendly modular solutions. Since founding in the late 1980’s, Multistack has engineered, manufactured, and distributed an impressive array of modular air conditioning firsts: the first on-board strainer, the first modular automatic blow-down device, the first modular chiller for variable flow, the first modular chiller-heater (heat pump), the first modular heat-recovery chiller, the first modular air-to-water heat pump, the first modular chiller to utilize MagLev™ compressor technology, and the first modular chiller to utilize R-410A.

Never the Imitators…
Multistack sets the standard in the industry for superior customer service, fast and on time shipment, superior product quality, and new product development. Our pioneering leadership in environmental issues is well documented. If you want the best, be sure to specify the original: Multistack.

Different Types of Modular Chillers

Packaged Scroll
Packaged scroll modules are available in 20-, 30-, 50-, 70-, and 85-Tons with dual independent scroll compressors. Our 105-, 135-, and 145-Ton modules utilize dual-tandem scroll compressor pairs with each pair on independent refrigerant circuits. Packaged scroll modules may be mix-matched within limits to form scroll chillers from 20- to 1200-Tons utilizing environmentally friendly R-410A refrigerant.

Packaged Air-Cooled Scroll
Packaged Air-Cooled scroll modules are available in 10-, 15-, 20-, 30-, and 60-Ton packages, each with dual-scroll tandem compressor sets. Modules may be mix-matched and combined to form chillers from 10- to 600-Tons. Units are available with high-static condenser fans for ducted applications.

A wide variety of accessory modules are available including pump modules, tank modules, glycol shot-feeder modules, and free-cooling modules (water-side economizer). A wide variety of custom configurations are available on request including variable primary flow compatibility.