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Old unit in, replacement options out
Punch in the old rooftop unit by model number, or filter by specs, and get compatible replacement candidates across nine manufacturers — with the swap deltas that bite you on the roof and a button straight to the manufacturer's submittal. Built to work on the iPad in the field.
RTU Cross-Reference
Two ways in: decode an old model number, or filter the catalog by the specs you need. Results show replacement families, the deltas to watch, and a deep link to each manufacturer's spec/submittal page.
Replacement candidates are matched on nominal tonnage, electrical, and heat type from published manufacturer data. Nominal tonnage does not equal curb compatibility — cross-brand swaps almost always need a curb adapter. Always confirm against the actual submittal and measure the existing curb before ordering.
What the decoder reads
The model-number lookup pulls tonnage, voltage, and heat straight from each manufacturer's nomenclature. Confidence tags tell you when a result is a direct table match versus a pattern inference worth double-checking against the cut sheet.