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Advantage Add-On Chiller Modules

Plant-Wide Systems to 300 Tons

Add capacity to the loop you already have, in 5 to 180 ton steps

Overview

Add capacity to a chilled-water loop you already have with Advantage chiller modules, in 5 to 180 ton steps, without starting over.

Advantage chiller modules are the refrigeration side only - compressor, condenser and evaporator - built to parallel onto a pump tank station rather than carry their own reservoir and pumps. That makes them the right tool for adding capacity to a plant that already has a chilled-water loop and a pump tank station in place, instead of replacing a working system to get more tons.

Each module is rated from 5 to 180 tons, and several of them share one pump tank station, so the plant-wide total climbs well past what any single packaged chiller can carry. A single factory-standard chiller package tops out around 180-210 tons; module-and-pump-tank combinations are how Advantage-equipped plants reach 300 tons and, in custom-engineered combinations, beyond that.

Because a module depends on an existing (or newly specified) pump tank station, sizing one correctly means looking at the whole loop - existing pump head and flow, reservoir volume, and how the new module's controls will stage against what's already running. Send us the current system's pump and reservoir specifications along with the additional load you need to add.

See the full part-number line-up for both module types: APT-RC (air-cooled, remote condenser) and WPT (water-cooled) chilling modules, 5 to 180 tons each.

  • 5 to 180 tons per module - no reservoir or pumps on the module itself
  • Pairs with a pump tank station (see Accessories & Options) to build or expand a loop
  • Plant-wide totals to 300 tons are achieved by paralleling modules, not a single package
  • Larger combined plants are custom-engineered - talk to us about the target total tonnage
Per module
5 to 180 tons
Paralleled
To 300 tons+
Leaving fluid
20 to 80°F
Condensing
APT-RC air / WPT water

Module Types

Two module families, one pump tank station - the difference is how the condenser is cooled.

Module Capacity Range Leaving Fluid Temp Condensing
APT-RC 5 to 180 tons 20 to 80°F Air-cooled, remote condenser
WPT 5 to 180 tons 20 to 80°F Water-cooled, tower-connected
Paralleled Modules Combined to 300 tons+ Per-module setpoint Staged against one pump tank station

Naming vs. Actual Tonnage

Module part numbers name a nominal capacity that doesn't always match the actual delivered tonnage at your leaving fluid temperature - the CC-100APT-RC is rated at 90 tons and the CCC-150APT-RC at 135 tons even at the standard 50°F rating point, and colder setpoints deliver less again. Compare modules by their capacity table at your specific setpoint, not by the number in the part name.

Advantage remote-condenser (APT-RC) modules add a refrigerant line-set run between the compressor/evaporator skid and the outdoor condenser coil - line length and vertical rise both factor into proper line sizing, so the approximate routing distance from mechanical room to condenser location should be part of the initial quote conversation.

Advantage APT-RC chilling module with its outdoor remote condenser coil Advantage APT-RC chilling modules

Module Sizing

What We Need to Size an Add-On Module

A module has to fit the station it joins. These details let us match its tonnage, controls and condenser to the loop you already run:

  • Tons to add, the GPM the new load brings, and the fluid temperature it needs
  • Pump tank station data: reservoir gallons, pump flow and head
  • Remote air-cooled condenser (APT-RC) or tower water (WPT)
  • APT-RC only: line-set length and vertical rise to the condenser coil
  • Spare valved tees on the headers, or the shutdown window you can give us
Request a Quote

Call and talk it through with an engineer: 1-805-484-2992

Adding a module without upsetting the running loop

Only if the new load arrives without new flow, which is rare. A module adds refrigeration, but new machines add GPM. A loop carrying 120 tons at a 10°F rise moves about 290 GPM; add 60 tons of new process at the same rise and it needs about 430 GPM. If the station's pump was selected near 300 GPM, the module will chill water the far machines never receive. Check the pump curve at the new flow, plus the head added by longer piping, before choosing a module size - sometimes the pump upgrade comes first.

Two smaller ones when the load swings, one larger one when it holds steady. Paralleled modules stage on and off against the shared station, so a plant that needs 150 tons on day shift but only 45 on nights is better served by a 100-ton and a 50-ton module (rated tons, not model-number tons) than by a single 150-ton module: the smaller one carries the light shift alone instead of a big module cycling on a fraction of its load, and the plant keeps part of its capacity if one module is down. The cost is a second electrical feed and another set of connections.

Often, if the station was built with spare valved connections; otherwise plan one short shutdown. Where capped, valved tees already sit on the supply and return headers, the new Advantage module can be set, wired and piped up to closed valves while production runs, then opened and vented in minutes. Where they do not, cutting tees into a live header means draining that section, so schedule it for a weekend and do all the piping in one outage.

Then a module on the same station will not solve it by itself. Paralleled modules discharge into one shared supply, so a module set at 35°F beside one set at 50°F simply blends to something in between, and the cold process never sees 35°F. Pulling the whole loop down to suit one process cuts the output of every module on it and raises the power bill across the plant. Keep the cold duty on its own loop, from a separate station or a dual-zone package, and let the modules expand the warm loop they were designed for.
Call and talk it through with an engineer: 1-805-484-2992

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