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Find Your Replacement

Discontinued — nVent no longer sells it at any price

Your T531926G151 has a replacement — with one honest catch.

Same 19,000 BTU/hr, same 230V. Plan on a minor cutout trim in the field to take the AT19RNS20 — no adapter plate needed.

Also sold as McLean · Hoffman · Pentair · nVent — T531926G151 — 20,400 BTU/hr · 230V · NEMA 4X · R-134A

T531926G151 — existing unit

Yours

T531926G151

53.0″ × 21.0″ × 13.0″ · 197 lbs

Modified fit
VoltAire AT19RNS20 — replacement for T531926G151

Ours, in production

VoltAire AT19RNS20

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

Fits After Modification Fit details ↓

You'll order: 1× AT19RNS20 — $8,139. Plus a minor cutout trim in the field.

No price comparison to make — nVent no longer sells this unit at any price. The real cost to weigh is a planned swap now versus an emergency swap after it quits.

Your In-Production Replacement

AT19RNS20

Fits After Modification

19,000 BTU/hr • 230V • NEMA 4X

Availability Built to Order 4-6 weeks — made in Orlando, FL
Includes Unit only Minor cutout trim in the field 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, in the standard off-white cabinet. It ships next business day instead of 4-6 weeks — and it costs $1,821 less.

Take the in-stock AT19RNW20 $6,318

Your order total

$8,139

Unit price. Minor cutout trim done in the field.

Start My Order

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

Existing Unit Discontinued

T531926G151

20,400 BTU/hr (5978 Watt) • 230V
T531926G151
Brand nVent
Series T5319
Capacity 20,400 BTU/hr (5978 Watt)
Voltage 230V
Heat Yes
Finish S

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

VoltAire Replacement In Production
AT19RNS20
19,000 BTU/hr • 230V
VoltAire AT19RNS20
Brand VoltAire
Series AT Telecom Series
Capacity 19,000 BTU/hr capacity step-down, about −7%
Voltage 230V
Heat Yes
Finish 304 Stainless Steel (NEMA 4X)

What You'll Order

1× AT19RNS20 $8,139

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

Fits After Modification

Same cooling capacity and voltage as the T531926G151 — generally considered a match, just not bolt-for-bolt. The cabinet cutout differs by a small amount, so a quick trim with a sawzall (or similar tool) gets the VoltAire AT19RNS20 into place. Minor field work, no adapter plate required — routine for any installer. Call (844) 925-5668 if you'd like us to walk through the trim before you order.

Unit dimensions — what the tape measure will tell you

T531926G151 AT19RNS20 Δ
Height 53.0″ 53.03″ H 0.0″
Width 21.0″ 21.62″ W +0.6″
Depth 13.0″ 17.00″ D +4.0″
T5319 to AT19 Provisional cabinet cuts shown
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 T5319AIR OPENINGModifySUPPLY / RETURN CUTOUTInstalled AT19SUPPLY / RETURN CUTOUT10.41 in. Cabinet cooler replacement comparison Existing nVent cabinet openings, the required modification, and the installed VoltAire arrangement. Existing T5319AIR OPENINGModifySUPPLY / RETURN CUTOUTInstalled AT19SUPPLY / RETURN CUTOUT10.41 in.
Existing nVent AC outline Existing nVent opening New VoltAire unit outline VoltAire opening Existing cabinet metal that may need removal — verify first
The red hatching comes from the manufacturer's spec sheet; verify it against your actual unit before cutting.
Step 1 of 4 Start with the existing T5319 cabinet pattern.
Selected installation step Cabinet drawing for the selected installation step. AIR OPENING

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 T5319 openings shown come from one manufacturer spec sheet; openings on other production runs can differ — check your actual unit. 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.

T531926G151 Replacement — Common Questions

What replaces the McLean T531926G151?
The VoltAire AT19RNS20 — 19,000 BTU/hr at 230V, NEMA 4X, UL/cUL Listed and built in Orlando, FL. Fits after a minor cutout trim — no adapter needed.
Is the T531926G151 discontinued?
Yes. nVent has discontinued the T531926G151 and no longer sells it at any price. The VoltAire AT19RNS20 is an in-production replacement at the same voltage and in the same capacity class, backed by a 12-month warranty.
Will the VoltAire AT19RNS20 fit my T531926G151 cutout?
After a minor cutout trim in the field — no adapter plate needed.
How much does a T531926G151 replacement cost?
The VoltAire AT19RNS20 is $8,139. nVent no longer sells the T531926G151 at any price, so there is no OEM price to compare. 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 T531926G151?
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 AT19RNS20 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

T531926G151 (this page) T531926G100 T531926G150 T531926G109

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.