AeroCool Swamp Coolers by Phoenix Manufacturing: A Reno Owner's Reference

AeroCool is Phoenix Manufacturing’s rigid media line, and Phoenix, in Phoenix, Arizona, has been building evaporative coolers for more than 50 years. It is the other rigid media brand you find on newer Reno roofs alongside MasterCool, and it is a separate company entirely from the Champion and Essick family. This page is the reference: models, media, the purge and thermostat features, and what fails first on Truckee Meadows water. Every price quoted here is on the pricing page.

The models

The residential line is single-inlet and comes in three discharges: TD or PD for down, TH or PH for side, and TUP for up. A U prefix marks the UL Listed version, so UTD6801C is a UL Listed down-discharge 6801. Standard AeroCool units ship with a 120 volt pump and motors sold separately; Pro Series units arrive with a factory-installed two-speed motor, pump, and the Pro-Stat thermostat.

Published specifications, which are the useful part:

Note what the 12 inch media costs you in airflow and buys you in cooling: the 4812 moves less air than the 4801 at the same rating because thicker media resists more, but it saturates far better. Phoenix publishes 80 percent saturation efficiency for the 8 inch media, 89 percent for the 12 inch, and 93 percent for the Pro Series 4 by 4. On a two-story Spanish Springs house that was already marginal on CFM, the airflow loss is real and the installation page covers sizing for it.

The features, in plain English

AeroCool’s names have plain equivalents worth knowing: the Pro-Armor liner is a polymeric shell around the wet section that keeps water off steel, Flomate is the water distribution system, Peblar XT is the powder coat, and the Pro-Clean System drains and washes the unit daily, which Phoenix says can save thousands of gallons over a season compared with a continuous bleed-off. The Pro-Shield panel is the factory winter cover, and in a valley where the Washoe Zephyr shreds a loose tarp by March, a fitted factory cover earns its keep at the fall winterization.

Why the purge and the thermostat matter in Reno specifically

Two Reno facts line up with two AeroCool features.

The water swings. The Truckee Meadows Water Authority’s river water is soft, 2 to 5 grains per gallon in most of Reno and Sparks by its own area reports, but the same reports do not hold one number: 13.9 grains in Southwest Reno in the first quarter of 2026 against 2.6 in the second, 10.4 in West Reno against 4.7. TMWA says the groundwater wells it runs from mid-April through October can and do change the water chemistry somewhat. A pan that sees 3 grains one quarter and 14 the next concentrates fast, and a daily purge that dumps the pan and refills it is exactly the feature that handles a swing rather than a steady number. The pump and float page explains the bleed-off alternative.

The nights are cold. NOAA’s normals put Reno’s July normal low at 60.4 degrees against a normal high of 93.9, and June and September nights in the low 50s. A Pro Series unit’s two-speed motor and Pro-Stat thermostat are the answer to the too-cold-at-night complaint that a single-speed cooler on a manual switch produces every evening in this valley.

On rebates: the saturation figures above would decide a rebate tier in Colorado, where the utility pays more for 85 percent media. In Nevada we could not find an NV Energy evaporative cooler rebate, so 8 versus 12 inch is a cooling-versus-airflow decision on its own merits. The permits and licensing page explains what we looked at.

What fails, in order

1. Pump. The standard 120 volt pump dies from scale on the impeller or from running dry after a stuck float. $150 to $400 installed. Check the screen first; the pump-not-pumping page has the two-minute test.
2. Float. Sticks on scale, floods the roof or starves the pads. $100 to $250.
3. Flomate distribution. A clogged distributor is a pad that wets on one side only, and it looks exactly like a bad pad. Cleaning with the call, or $100 to $200 for a new one.
4. Belt. $40 to $100 with the visit on the standard units with separate motors.
5. Media. Three to five years with the Pro-Clean running, sooner without. Rigid media runs $300 to $700 a set.
6. Motor. $300 to $700, two-speed at the top. Capacitor and bearings first.

The Pro-Armor liner means the wet section is not steel, which sidesteps the rust-through that ends old galvanized coolers on the 1950s Sparks ranches. An AeroCool left full into Reno’s October freeze cracks a pump housing rather than a pan, which is a cheaper mistake, though the winterization is still the right answer.

For the aspen alternative, see the Champion and Essick page; for the direct-drive Australian line, see the Breezair page. For what a repair costs on your unit, the repair cost calculator uses the published ranges.