Advantage WPT Series Central Chillers

No — like the air-cooled APT-RC line, WPT is refrigeration only. Every module requires a separate pump tank station to circulate fluid through your process loop.

Advantage's own published data doesn't state a flow rate or pressure-drop figure for any WPT model, and we won't invent one here. Call or request a quote with your tower or city-water supply details and we'll size the connection against the specific unit's evaporator and compressor duty.

The number in the model name is a nominal size, not a rating - C-20WPT, for example, is rated 19 tons at standard conditions. Every WPT part-number page leads with the rated capacity, so size and quote against that figure rather than the number in the model name.

Air-cooled APT-RC needs no plant water but requires a line-set run to an outdoor or rooftop condensing section. Water-cooled WPT needs a tower or city-water supply but has a smaller footprint with no remote condenser. See our Air-Cooled vs Water-Cooled guide, or call and we'll help you decide.

Advantage designs WPT modules for condenser water at 85°F maximum. Tower water is the usual source, though city or well water also works, and a water regulating valve on the module varies condenser flow with refrigerant discharge pressure. Install a 40 mesh or finer basket strainer ahead of the module to keep debris out of the condenser; basket types hold more than wye strainers. The condenser is cleanable and has a single-point water connection with isolation valves. WPT modules are built for indoor use, in a clean, dry, well-ventilated space.

Run a four-conductor supply cable from a customer-supplied fused disconnect, sized to the module's power requirement and local code, to the power entry terminal block. Advantage leaves no power entry hole in the cabinet, so the electrician cuts one to suit the fittings. Supply voltage must be within 10% of nameplate and within 2% leg to leg. Size the disconnect and wiring on full load amps, not running amps. Components sit in a UL508A panel with branch circuit protection and a standard 5 kA SCCR, and a unit-specific wiring drawing ships with the module.

Yes, but not on plain water. Advantage ships the control with a 48 to 90°F setpoint range. To go colder, fill the loop with inhibited propylene glycol, never automotive antifreeze, confirm the concentration with a refractometer, then reset the low refrigerant pressure limits and freezestats to match before the control is unlocked for lower setpoints. Too much glycol causes capacity and control problems, so mix to the chart rather than guessing. Expect less capacity when running cold: published tonnage at 25°F leaving fluid is roughly 60% of the 50°F rating.