First Co. Manuals & User Guides
First Co. is a leading US-based manufacturer of residential and commercial HVAC products, specializing in independent fan coils, water-source heat pumps, and air handlers.
About First Co. manuals on Manuals.plus
Founded in 1966, First Co. has established itself as an innovator in the HVAC industry, particularly known for its extensive line of niche heating and cooling products. Based in Dallas, Texas, the company manufactures a wide variety of fan coils, water-source heat pumps, and through-the-wall units designed for multifamily, hospitality, and commercial applications.
First Co. operates under the AE-Air umbrella and is dedicated to engineering high-quality, reliable climate control solutions made in the USA. Their product range includes hydronic fan coils, DX fan coils, and specialized air handling units that cater to unique architectural constraints.
First Co. manuals
Selected manuals from manuals+ curated for this brand.
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AE-Air CR Series Vertical Hydronic Fan Coil User Manual
AE-Air CWE Chilled Water HVAC Systems Instruction Manual
AE Air WSV Water Source Heat Pumps Instruction Manual
Ae-Air WSVC Water Source Heat Pumps Instruction Manual
AE-Air IOM 787702 HRC(C,X) High Rise Series Water Source Heat Pump Instruction Manual
AE-Air APHBC Horizontal Fan Coil with Plenum Chilled or Hot Water Owner’s Manual
AE-Air ACHBC Chilled or Hot Water Fan Coil Cabinet Owner’s Manual
AE-Air APHH Horizontal Fan Coil with Plenum Chilled Water Owner’s Manual
AE-Air IOM8601 Vertical Packaged Gas Heat Instruction Manual
First Co. SHW Series Hydronic Blower Coil Units Technical Specifications
First Co. FPH Series Vertical Packaged Heat Pump Installation & Maintenance Manual
CDXQ, CDXQX, CDXQR, CDXQXR Series Fan Coil Units Installation & Maintenance Manual
First Co. HX(X) Ceiling Fan Coil Specification
First Co. HX Series Ceiling Fan Coils Technical Specifications
First Co. CLP-AQ Series Upflow Closet Air Handler Specification
First Co. VHBXB-HW Series Variable Speed Fan Coil Specifications
First Co. HCX Series Multi-Position Fan Coils Technical Specification
First Co. FPG Series Vertical Packaged Gas Heat Installation, Operation, & Maintenance Manual
HBXB-HW & MBXB-HW Series Fan Coil Unit Installation, Operation & Maintenance Manual
*WHD / *XHD Direct Drive ECM Air Handler Installation and Maintenance Manual
First Co. Aqua Therm Series Parts List
12CLX Fan Coil Units
WSH SERIES Horizontal Water Source Heat Pump
RR AE Air Commercial HVAC Solutions
HYB Hydronic High Performance Ceiling Fan Coils
2-20 Tons SHWC SERIES Hydronic 2-20 Tons Horizontal Chilled Water
FPG Series Vertical Packaged Gas Heat and Electric Cooling Unit
WSV6 009-072 Vertical Series Water Source Heat Pump
FPGN9 Single Package Vertical Gas Unit
AWHDX SERIES Double Wall Construction
WSH(C,X) Horizontal Series Water Source Heat Pump
IOM 79H01 R-410A Water Source Heat Pump
AHH-1-4-23-1 Horizontal Fan Coil Chilled Water
First Co. video guides
Watch setup, installation, and troubleshooting videos for this brand.
First Co. support FAQ
Common questions about manuals, registration, and support for this brand.
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Where can I find First Co. installation manuals?
Installation, Operation, and Maintenance (IOM) manuals are typically available on the First Co. website under the Product Literature section or on the specific product page.
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Does First Co. sell directly to homeowners?
No, First Co. products are sold through wholesale distributors to licensed HVAC contractors. Homeowners should contact a local contractor for purchase and installation.
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What is the warranty on First Co. equipment?
First Co. offers a standard limited warranty on its products, covering defects in materials and workmanship. The warranty is valid only if the equipment is installed by a qualified, licensed professional. Specific warranty terms vary by product model.
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Can I install a First Co. fan coil myself?
No. First Co. equipment must be installed and serviced by qualified, licensed personnel. Improper installation by unauthorized individuals may void the warranty and can cause safety hazards.
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What does the 'AE-Air' name mean?
First Co. operates under the parent name Applied Environmental Air (AE-Air), which reflects its broader mission in manufacturing environmental air systems.