Discover what's inside this innovative XeteX Dedicated Outdoor Air System (DOAS) designed to meet the structural load requirements of a federal facility with the needs of its occupants, contributing to clean air and a comfortable climate-controlled environment.
Designed for a federal facility serving the locker rooms and cafeteria, this XeteX custom DOAS features an aluminum interior for weight savings and 100% outdoor air. Equipped with an enthalpy flat plate heat exchanger and electric preheat for frost control; packaged DX cooling with hot gas reheat; an indirect fired gas burner for the units main heat source; and high efficiency filters (at the OA, SA, and RA), this high-performance DOAS provides energy efficient temperature and humidity control and indoor air quality.
XeteX Custom DOAS Performance
Model: XHS-40-72-RT-DX-HE-HG-HI-AC
Dimensions: 85+11”H x 340”L x 79”W
Weight: 9,200 lbs
Supply CFM: 7,700 CFM
Energy Recovery: Enthalpy Plate Heat Exchanger
Energy Effectiveness: Winter: 59% / Summer: 52%
Heating Types/Heating Capacities: Indirect Fired Furnace: 241 MBH
Hot Gas Reheat: 204 MBH
Electric Preheater: 61 kW
Cooling Type: Packaged DX Cooling
Cooling Capacity: 34 Tons
Construction
- Double wall thermal break construction with 2” injected foam (R-value 14) insulation
- 20ga galvanneal outer casing with acrylic paint
- 0.080 aluminum interior casing for weight savings
- Welded 6” structural steel base frame and lifting lugs with acrylic paint
- 0.080 aluminum floor for weight savings with 2” injected foam (R-value 14) insulation
- Aluminum drain pan
Features
- Factory mounted controls
- Integral air-cooled section with two staged compressors and VFD lead
- Enthalpy flat plate heat exchanger
- 0% EATR
- Mold and bacteria resistance
- Water washable and freeze tolerant
- Piezo pressure port (SA/EA fans)
- IP 65 rated unit LED lights
XeteX Custom DOAS Components
A. OA 2” MERV 13 filters with alum. rack
B. Open coil electric preheater
C. Enthalpy flat plate heat exchanger
D. LED light
E. SA 2” MERV 13 filters with alum. rack
F. DX cooling coil
G. Hot gas reheat coil
H. Compressor VFD
I. SA premium two plenum fan array
J. 409SS indirect gas fired furnace
K. Recirculation damper
L. RA 2” MERV 13 filters with alum. rack
M. EA premium two plenum fan array
N. Condensing section
XeteX Custom DOAS Benefits
Innovative Weight-Saving Design
This XeteX custom DOAS features an innovative weight-saving design. The interior construction utilizes 0.080 aluminum casings and floor for significant weight reduction. This makes the system lighter and easier to install when compared with steel and reduces the structural load on the facility.
Utilizing Energy Recovery for Energy Efficient Year-Round Climate Control
Energy efficiency is an important factor for this federal facility, and this XeteX custom DOAS excels by integrating an enthalpy flat plate heat exchanger within the design. This device effectively transfers heat and moisture between incoming outdoor air and outgoing exhaust air, significantly reducing the energy required for heating and cooling. The enthalpy flat plate heat exchanger not only decreases operational costs but also minimizes the building's carbon footprint, offering a more sustainable solution.
Among the innovations of this XeteX custom DOAS is the integration of an enthalpy energy recovery flat plate heat exchanger with advanced heating and cooling equipment. The indirect gas-fired furnace ensures optimal comfort during cold winters, while the packaged DX cooling system, with a capacity of 34 tons, efficiently manages the demands of hot summer months. The inclusion of a variable frequency drive (VFD) and staged compressors further optimizes energy consumption by adjusting to real-time demand.
The enthalpy flat plate heat exchanger reduces the load on the heating and cooling systems, enhancing the energy efficiency of the building's HVAC system. With an energy effectiveness of 59% in winter and 52% in summer, this component provides an energy-efficient solution throughout the year.
Enhancing Indoor Air Quality with High Efficiency Filters
This custom DOAS draws 100% fresh outdoor air and is equipped with high-efficiency MERV 13 filters mounted at the OA, SA and RA that capture a wide range of airborne contaminants. Together the filtered fresh air provides a healthier indoor environment for federal facility occupants.
Learn more about XeteX Custom Dedicated Outdoor Air Systems!
