Looking for a Marvair ECU12?
Discontinued by Marvair
Marvair DoorPac — ECU12A48-3.6
The VoltAire AT12 covers this one with cabinet modification plus the adapter plate.
DoorPac literature dates to 2002 and the ECU line no longer appears on Marvair's current product pages.
Your ECU12 — confirmed specs
- Capacity
- 12,000 BTU/hr
- Voltages
- 208/230VAC 1ø 60Hz
- Unit size
- — (dimensional data was by-request only)
- Weight
- 150 lbs
Your In-Production Replacement
AT12 Series
NEMA 4/4X enclosure air conditioner — made in Orlando, FL
AT12 series pricing
From $4,548
Exact price depends on voltage, heater, and finish — configure it in two minutes.
Or see a typical build: AT12RNWXX
Also rated for this swap: AT19 (cabinet mod + adapter plate).
Backed by VoltAire’s 12-month warranty (PDF) · UL 484 · Made in Orlando, FL 🇺🇸
Cutout-by-cutout drawings for Marvair swaps are being digitized now — until then, call and we'll walk your cutout over the phone.
VoltAire Cooling is an independent party and is not affiliated with or endorsed by Marvair. All competitor brand names and model numbers are the property of their respective owners and are used here for identification and compatibility purposes only.