Allied Air LGH420/480/540/600 — curb adapter & replacement fit
The Allied Air LGH420/480/540/600 mounts on a roof curb with an overall footprint of 80″ × 252″. SMARTCurb can compile a fabrication-ready curb adapter between this unit and hundreds of other rooftop units — replacement without touching the roof deck.
Curb footprint: 80″ × 252″ (L × W)
Covered models: LGH420/480/540/600, SCA420/480/540/600, LCH420/480/540/600
Existing-curb pattern drawing — reference only, verify dimensions before fabrication.
Compatible replacement pairings
- Allied Air CHA16090 87.5″ × 47″
- Allied Air CHA15261/311/411/413/461/463/511/513/651/653 58.5″ × 57.5″
- Lennox DMS3185/275/300/360 88.5″ × 254.5″
- American Standard SFZA170/200/250/300 67″ × 247″
- American Standard SBHDC20/25/30 84.5″ × 233.5″
- Carrier 48DJ*034 64.5″ × 265.5″
- Lennox DSS1 450-600 85″ × 287.5″
- Carrier 50DJ*044 84.5″ × 289″
Need this fabricated?
Taylor Metals builds SMARTCurb adapters in 16 ga galvanized steel, fully welded, ready to set. Vancouver / Pitt Meadows, BC.
Request a quote — most quotes within 24 hours