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Find Your Replacement

Discontinued by nVent

Your T622226G100 has an adapter-fit replacement.

Same capacity, same voltage. The included adapter plate bridges your existing cutout to the AT19RNWXX — fitting work during the swap, not a new cutout.

Also sold as McLean · Hoffman · Pentair · nVent — T622226G100 — 20,000 BTU/hr · 230V · NEMA 4 · R-134A

T622226G100

Yours

T622226G100

Adapter fit
VoltAire AT19RNWXX — replacement for T622226G100

Ours, in production

VoltAire AT19RNWXX

53.03″ H × 17.00″ D × 21.62″ W · 200.0 lbs

Adapter Fit · +$405 Fit details ↓

You'll order: 1× AT19RNWXX + 1× adapter plate — $6,560 total.

Verified fit path — so you're not the one explaining a wrong-fit order.

Where distributors publish pricing for the nVent equivalent, VoltAire runs 48% less on average — 21–70% by model (sourced July 2026).

Your In-Production Replacement

AT19RNWXX

Adapter Fit

19,000 BTU/hr • 230V • NEMA 4

Availability Built to Order 4-6 weeks — made in Orlando, FL
Includes Unit + adapter plate 30-day price lock · no-obligation quote
Built Orlando, FL — UL/cUL Listed

Need It Faster?

The AT19RNW20 is on the shelf right now — same 19,000 BTU/hr, same 230V, with a 2,000W electric heater included. It ships next business day instead of 4-6 weeks for $163 more.

Take the in-stock AT19RNW20 $6,723

Your order total

$6,560

Adapter plate included in this price.

Start My Order

Backed by VoltAire’s 12-month warranty (PDF) · UL 484 · Made in Orlando, FL 🇺🇸

Existing Unit Discontinued

T622226G100

20,000 BTU/hr (5,860 Watt) • 230V
T622226G100
Brand McLean
Series T6222
Capacity 20,000 BTU/hr (5,860 Watt)
Voltage 230V
Heat No
Finish W

Where distributors publish pricing for the OEM equivalent, VoltAire runs 48% less on average (21-70% by model).

VoltAire Replacement In Production
AT19RNWXX
19,000 BTU/hr • 230V
VoltAire AT19RNWXX
Brand VoltAire
Series AT Telecom Series
Capacity 19,000 BTU/hr capacity step-down, about −5%
Voltage 230V
Heat No
Finish Hentzen Off White (NEMA 4)

What You'll Order

1× AT19RNWXX $6,155
1× Adapter / Transition Plate $405
Order total $6,560

Popular options

Screens sawdust, filings & insects off the condenser coil — not an enclosure air filter; cabinet air stays sealed.

Need a different voltage or capacity? Configure your AT19 →

Built to Order • 4-6 weeks

Details

Fit Details

Adapter Fit

Same cooling capacity and voltage as the T622226G100. Cabinet cutout dimensions differ, so an adapter plate is required to bridge the mounting pattern between the existing opening and the VoltAire AT19RNWXX — so you're not fabricating a new opening. Plan on some fitting work during the swap; we'll spec the exact adapter for your installation at order review.

T6222 to AT19 Adapter plate + provisional cabinet cuts
Plan on the adapter plate plus some cabinet cutting — the red areas show where the new openings reach beyond the existing cutout. The red areas come from the manufacturer's spec sheet and must be confirmed against your actual unit before cutting.
Cabinet cooler replacement comparison Existing nVent cabinet openings, the required modification, and the installed VoltAire arrangement. Existing T6222RETURNACCESSSUPPLYModifySUPPLY / RETURN CUTOUTInstalled AT19SUPPLY / RETURN CUTOUT10.41 in. Cabinet cooler replacement comparison Existing nVent cabinet openings, the required modification, and the installed VoltAire arrangement. Existing T6222RETURNACCESSSUPPLYModifySUPPLY / RETURN CUTOUTInstalled AT19SUPPLY / RETURN CUTOUT10.41 in.
Existing nVent AC outline Existing nVent opening Existing service/access opening Adapter plate New VoltAire unit outline Stamped VoltAire opening Existing cabinet metal that may need removal — verify first
The red hatching shows cabinet metal outside the existing openings; verify it against your actual unit before cutting.
Step 1 of 4 Start with the existing T6222 cabinet pattern.
Selected installation step Cabinet drawing for the selected installation step. RETURNACCESSSUPPLY

The green adapter plate covers the existing pattern and contains the VoltAire stamped openings; use the supplied plate for final dimensions, holes, gaskets, and cut locations. The two manufacturer drawings are centered on each other for visual comparison only, because a shared mounting reference between the two units has not been verified. Verify every opening against your actual unit before any cutting or mounting. The AT19 cutout starts 1.84 inches from the top and ends at 42.62 inches, leaving 10.41 inches of cabinet below the opening. The separate 8.57-inch lower drawing section is not part of the airflow cutout. This comparison is a visual guide, not a cutting or drilling template. Openings can vary with voltage and production run — verify against your actual unit before any cutting or mounting, and follow the manufacturer's installation template.

Not sure? Talk to a fit specialist — (844) 925-5668.

T622226G100 Replacement — Common Questions

What replaces the McLean T622226G100?
The VoltAire AT19RNWXX — 19,000 BTU/hr at 230V, NEMA 4, UL/cUL Listed and built in Orlando, FL. Adapter fit — mounts to your existing cutout with the included adapter plate.
Is the T622226G100 discontinued?
Yes. nVent has discontinued the T622226G100. The VoltAire AT19RNWXX is an in-production replacement at the same voltage and in the same capacity class, backed by a 12-month warranty.
Will the VoltAire AT19RNWXX fit my T622226G100 cutout?
Yes, with the adapter plate included in the quoted total. It bridges your existing T622226G100 cutout to the AT19RNWXX mounting pattern so you're not fabricating a new opening — but plan on some fitting work during the swap. The dimensions table on this page compares both units side by side; if anything looks off for your cabinet, call (844) 925-5668 before you order.
How much does a T622226G100 replacement cost?
The VoltAire AT19RNWXX is $6,560 including the adapter plate. Where distributors publish pricing for the nVent equivalent, VoltAire runs 48% less on average — 21–70% by model (sourced July 2026). Volume discounts start at 4 units, and every quote locks pricing for 30 days with no obligation.
How fast can I get a replacement for my T622226G100?
Configured builds ship in 4–6 weeks from Orlando, FL. In-stock variants are sometimes on the shelf — call (844) 925-5668 and we'll find the fastest path for your spec.
Is the VoltAire AT19RNWXX an original McLean part?
No. VoltAire is an independent brand — an engineered replacement, not an OEM part. VoltAire Cooling is not affiliated with McLean, Hoffman, Pentair, or nVent. Units are UL/cUL Listed (UL 484) and manufactured in Orlando, Florida.

Why Switch to VoltAire?

Engineered Replacement

Matched voltage and NEMA 4 protection, with the capacity difference stated in plain numbers above — with a clear fit path for your enclosure: direct, adapter plate, or template-guided modification. Built to replace McLean, Hoffman, Pentair, and nVent.

Built & Tested in the USA

Manufactured in Orlando, FL with a 5-point pressure and leak test. In-stock models ship fast from East Coast (VA) and Rocky Mountain (ID) warehouses; built-to-order configurations ship in 4-6 weeks.

48% Below Published Online Pricing, on Average

No distribution markup. Transparent pricing. Volume discounts at 4+ and 7+ units. Integrator pricing available for panel shops.

Need Heat, Stainless, 230V, or Remote Monitoring?

The AT19 is available with electric heat, stainless steel NEMA 4X, 48VDC, and factory ethernet controllers with Lead-Lag, SNMP, and BACnet.

Configure Your AT19 →

Related Models

T622226G100 (this page) T622226G150

VoltAire Cooling is an independent party and is not affiliated with or endorsed by McLean, Hoffman, Pentair, or nVent. All competitor brand names and model numbers are the property of their respective owners and are used here for identification and compatibility purposes only.