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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.

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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

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AE Air CR Vertical Hydronic Fan Coil User Manual

October 11, 2026
AE Air CR Vertical Hydronic Fan Coil NOMENCLATURE In keeping with its policy of continuous progress and product improvement, AE-Air reserves the right to make changes without notice. CHILLED WATER…

AE-Air CWE Chilled Water HVAC Systems Instruction Manual

April 14, 2025
AE-Air CWE Chilled Water HVAC Systems Product Specifications Model: CWE(X) Type: Multi-Position Chilled Water Fan Coil Control: 3-Speed, 24V Motor: 240V Multi-Speed Product Usage Instructions Standard Features  The CWE(X) is…

AE Air WSV Water Source Heat Pumps Instruction Manual

December 10, 2024
AE Air WSV Water Source Heat Pumps Product Specifications Product Name: *WSVC/*WSVX SERIES WATER SOURCE HEAT PUMPS Model: WSV* Revision: A 1/24 Product Usage Instructions Safety Considerations Before starting the…

Ae-Air WSVC Water Source Heat Pumps Instruction Manual

September 13, 2023
*WSVC / *WSVX SERIES WATER SOURCE HEAT PUMPS INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS **WARNING TO INSTALLER, SERVICE PERSONNEL AND OWNER** Altering the product or replacing parts with non authorized factory…

First Co. HX(X) Ceiling Fan Coil Specification

technical specification
Technical specifications and installation guide for First Co. HX(X) ceiling fan coils, featuring horizontal recessed design, 1-1/2 to 3-ton cooling, and 0-10 kW electric heat options.

First Co. Aqua Therm Series Parts List

parts list diagram
Comprehensive parts list and component specifications for First Co. Aqua Therm Series fan coils and air handlers, including CAQ, CDXQ, HBC-HW, and other series.

12CLX Fan Coil Units

Instruction Manual
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ, 12CLX Fan Coil Units, 12CLX, Fan Coil Units, Coil Units

First Co. video guides

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First Co. support FAQ

Common questions about manuals, registration, and support for this brand.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.