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Advantage Outdoor Glycol Chillers

2 to 120 HP

A weatherproof glycol package that stays outside all year

Overview

A weatherproof Advantage glycol package that stays outside all year - freeze protection is built into the fluid, not just the cabinet.

Advantage outdoor glycol chillers combine a weatherproof enclosure with a glycol-rated evaporator and pump, so the unit can sit on a pad outside year-round without draining down for winter. This is the standard configuration for breweries and distilleries running an outdoor glycol loop, and for any plant that would rather not find mechanical-room space at all.

As with the indoor units, single-zone and dual-zone configurations are both available across the 2 to 120 HP range - dual zone where the process needs two independent glycol temperatures from one outdoor package.

See the BG series for the full part-number line-up of every Advantage outdoor glycol model on this page, from the smaller weatherproof NEMA 4 cabinets up through OACS-platform units adapted for glycol duty.

  • 2 to 120 HP, single or dual zone
  • Weatherproof enclosure, no mechanical room required
  • Standard configuration for brewery and distillery glycol loops
Range
2 to 120 HP
Enclosure
NEMA 4 / weatherproof
Zones
Single or dual
Mechanical room
None required

Outdoor Glycol Configurations

The enclosure changes with size; the single- or dual-zone choice does not.

Configuration Range Notes
Single Zone 2 to 120 HP One glycol temperature plant-wide
Dual Zone 2 to 120 HP Two independent glycol temperatures from one frame
Enclosure NEMA 4 (small) / weatherproof cabinet (large) No mechanical room or duct routing required

Why Breweries Default to Outdoor Glycol

A brewery or distillery glycol loop is a natural fit for an outdoor Advantage package: the equipment is already weatherproof by requirement (it runs year-round regardless of building HVAC), and putting the chiller outside frees mechanical-room or production-floor space for tanks, kegging lines or barrel storage instead. The glycol fill itself provides the freeze protection the fluid needs at typical 25-28°F brewery setpoints, provided the mix also protects to the site's lowest winter ambient when that is colder; the cabinet's weatherproof rating protects the electronics and controls, not the process fluid.

As with indoor units, propylene glycol is the standard choice anywhere the loop touches fermentation jackets, glycol-jacketed tanks, or other product-adjacent surfaces. Confirm your target temperature and glycol type at quote time so pump and reservoir sizing match the actual mix.

Advantage OACS-BC single-zone outdoor glycol chiller Advantage BG and OACS-BC glycol units

Year-Round Install

Planning a Glycol Unit for the Pad

Outside, the mix has to cover both the process setpoint and the coldest night on site. These let us size the unit, reservoir and glycol as one:

  • Lowest glycol setpoint, and one zone or two
  • Winter low and summer high, plus how sunny or sheltered the pad is
  • Food-grade propylene or industrial ethylene, and the target percentage
  • Height of the highest tank or glycol main above the pad
  • Number of tanks or loops the unit feeds
  • Electrical service at the pad
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Where the pad goes and how the loop behaves at rest

It can, by several degrees of air. The condenser sees the air at its coil, not the weather-station reading, and a pad on dark asphalt against a south-facing wall, or tucked under an overhang that traps discharge air, can run 5 to 10°F hotter on a summer afternoon. That costs capacity just when cellar loads peak. Choose an open spot, shaded from afternoon sun if possible, keep the discharge free to rise, and avoid corners formed by two walls. If the only pad available is a hot one, tell us so the condenser is selected for it.

The elevated piping can drain back toward the chiller and overflow its reservoir. A brewery with fermenters on a mezzanine, or glycol mains strung along a high ceiling, holds a surprising amount of fluid above the pad - 200 feet of 2-inch pipe alone is about 35 gallons. When the pump stops, gravity sends it home, and if the reservoir has no room for it, glycol ends up on the pad. Tell us the height of the highest tank and mains so the reservoir margin and the valving that holds the lines full are planned in.

Usually, yes. Cold outdoor air lets the condenser reject heat at a lower pressure, so each ton of cooling takes less compressor power then on a 95°F afternoon. The low-ambient controls keep that from going too far, holding head pressure high enough for the refrigerant circuit to feed properly in subzero weather. Plan production with it in mind: a heavy crash schedule costs less to run in January than in July on the same Advantage unit.

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