First Co. HVAC Age Lookup Tool
Decode your First Co. serial number to find the manufacturing date, system age, and maintenance recommendations. Free and instant. No account needed.
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Finding Your First Co. Serial Number
Check these four spots on your HVAC system
Common Locations
What to Look For
- White or metallic manufacturer sticker
- Labeled "Serial No." or "S/N"
- Typically 8–12 characters long
- Usually near the model number
Can't find it? Try the electrical access panel on the front of the outdoor unit or inside the air handler cabinet.
Serial Number Examples
Don't worry if yours looks different — each brand has multiple formats and our system can decode most variations.
About First Co. HVAC Systems
Owned by First Company
First Co. (First Company) is a Dallas-based manufacturer specializing in multi-family HVAC systems, including water-source heat pumps, air handlers, and fan coils. They mainly serve apartment buildings, condos, and other multi-unit construction.
The serial number encoding is unusual: the first letter encodes the year using a rolling cycle, and the next two digits encode the month. Enter your serial number above and the decoder handles the cycle math automatically.
Common First Co. HVAC Models & Series
The most-installed First Co. residential systems on the market today, organized by tier. Knowing your series helps narrow down service parts and warranty terms.
| Series | Type | Tier | Efficiency | Notes |
|---|---|---|---|---|
| Aqua-Therm WSHP Water-Source Heat Pump | Water-Source Heat Pump | Premium | Up to 14 EER | Closed-loop water-source heat pump for multi-family buildings; common in mid-rise apartments. |
| EVO Vertical Air Handler | Air Handler | Mid-range | ECM blower | Vertical-mount fan coil unit common in apartment closets. |
| AAB Horizontal Air Handler | Air Handler | Mid-range | ECM or PSC blower | Horizontal/ceiling-mount air handler for tight installs. |
| 30FC / 36FC Fan Coil | Fan Coil | Entry | PSC blower | Compact hydronic fan coil for in-suite heating/cooling. |
| MV Manufactured Housing Furnace | Gas Furnace | Mid-range | Up to 80 AFUE | Single-stage gas furnace specifically certified for HUD-Code manufactured homes. |
First Co. HVAC Quick Facts
Warranty
First Co. typically offers a 1-year parts warranty as standard for commercial / multi-family installations, with extended terms (up to 5 years) available through specifying engineers and developers. Compressor warranties on water-source heat pumps run 5 years standard, 10 years optional.
Expected Lifespan
AC / Heat pumps: 15 to 20 years
Furnaces: 20 to 25 years
Where It's Built
Dallas, Texas (First Company headquarters and main manufacturing plant). All First Co. equipment is built at the Dallas facility.
Price Positioning
Mid-tier commercial — pricing varies widely by project specification and quantity, but First Co. is competitive in the multi-family WSHP and air handler market.
Known First Co. Issues to Watch For
A short list of patterns reported on First Co. equipment. Most have been addressed with revised designs or service bulletins, but they're useful context if you're diagnosing an older system.
- •First Co. equipment is sold primarily through commercial/multi-family channels, so service parts can be harder to source than residential brands; work with a contractor who is set up with First Co. distribution.
- •Water-source heat pumps require a properly maintained loop — sediment in the loop water causes most premature compressor failures, not the equipment itself.
- •The 26-year year-letter cycle in the serial format means a unit could be either, e.g., 1995 or 2021; cross-reference with the printed install date if available.
First Co. HVAC FAQs
Related HVAC Brands
First Co. shares a parent company with these brands -- they often use similar serial number formats and components.
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