The pursuit of optimal Indoor Air Quality (IAQ) has been a driving force behind advancements in HVAC systems, a mission championed by organizations like ASHRAE. Engineers and users continually seek improved outcomes and performance from their heating, ventilation, and air conditioning systems. In response to these evolving needs, the late twentieth century saw the theoretical development of Dedicated Outside Air Systems (DOAS) by Dr. Stanley Mumma at Penn State University and Dr. William Coad, a former President of ASHRAE.
CaptiveAire embraced these DOAS concepts in 2013 with the introduction of its Paragon HVAC unit, establishing a new foundation for Total Building Integration (TBI). The Paragon HVAC system is distinguished by its innovative approach to air distribution, featuring the CAS-Supply Duct and CASLink technology designed to monitor sustainable performance.
Paragon-HVAC systems are recognized for their robust components and high-quality construction, ensuring long-lasting performance. CaptiveAire equipment, in general, is renowned for its longevity, frequently exceeding 20 years of service, and the Paragon product adheres to these same rigorous standards.
Addressing Modern Challenges in HVAC Manufacturing
The current year has presented unique challenges, including tariffs, shortages of 454B refrigerant, and escalating prices. However, CaptiveAire has maintained an adequate supply of refrigerant, enabling them to offer very short lead times for their products. To further ensure on-time deliveries, the company moved away from just-in-time inventory in 2020 and now stocks several months' worth of key components.
Comprehensive Field Service and Support
The establishment of a dedicated field service group in 2009 has been a significant development, growing to over 350 employees across North America. These Field Service Technicians are responsible for crucial tasks such as System Design Verifications, Preventive Maintenance (PM), and routine service. For users of modern TBI systems, consistent performance is paramount, making Factory Service an imperative aspect of maintaining the equipment's integrity.
The Paragon HVAC Unit: A Closer Look
The Paragon HVAC unit represents a significant advancement in make-up air technology. It is designed to address a variety of applications, including areas where overheating is a concern, such as kitchens experiencing radiant heat from appliances, which can impact the cook's comfort. Traditional methods for managing such conditions can be highly inefficient, leading to exorbitant amounts of wasted energy.
Comparing the Paragon Unit to Competitors
The Paragon HVAC unit stands out due to its unique design and features. A key advantage is the full factory control over the location of cooling components, which significantly simplifies servicing and maintenance. The units are equipped with top-mounted condensers.
Durability and Environmental Resilience
Concerns regarding excessive vibration or exposure to the elements are addressed by the unit's design. Extensive testing has demonstrated that the unit emits little to no vibration. Furthermore, its structural integrity and an integral weather/hail guard ensure that it is well-protected against environmental factors.
Advanced Temperature Control
The unit features a cooling thermostat that activates the cooling circuit when the outside air temperature rises above a set point. This is a 2-stage, differential thermostat. The first stage energizes when the set point is reached, and the second stage activates at a factory-set temperature of 10°F higher, which is adjustable.
Ease of Installation and Field Requirements
A primary feature of the Paragon Make-Up Air (MPU) unit is its ease of installation. The unit arrives fully assembled, including essential components like the filter drier. It undergoes vacuum testing and leak checks at the plant prior to shipment, minimizing on-site work.
Installation Procedure
The installation process is designed to be straightforward:
- Determine Hood Location: Consult building plans and job specifications to locate the hood.
- Outline Hood Position: Draw an outline of the hood on the floor where it will be positioned.
- Mark Duct Centerline: Identify and mark the center line of the main supply duct where it will penetrate the roof deck.
- Align Supply Duct: Use a plumb bob to ensure the supply duct is aligned straight up to the roof.
- Mark Roof Penetration: Mark the roof deck at the determined center line. This point will be the make-up air center.
- Verify Measurements: Double-check all measurements to ensure the hole will be cut accurately.
- Locate Punched Hole: Find the punched hole on the roof that corresponds to the make-up air center line of the curb.
- Cut Roof Opening: Proceed to cut the roof opening.
- Install Curb: Place the curb over the opening and flash it onto the roof deck.
- Mount Unit: Position the unit onto the curb and secure it with self-tapping screws.
Paragon HVAC - HMI Addressing and Configuration
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