Valent Dedicated Outdoor Air Systems
Designed for 100% Outdoor Air
Introduction
Valent was one of the first to specialize in high outdoor air units, which have unique design challenges like managing high humidity loads. Valent's DOAS designs are highly configurable to fit almost any project.
Valent DOAS Units at a Glance
Key Features
- Outdoor Air Experts: Valent's years of experience in high outdoor air applications lead to high performing solutions. Valent's application expertise can be helpful in the design process.
- Robust Designs: Valent uses quality components to increase unit longevity. Injected foam casings improve thermal performance. Pre-painted cabinets reduce environmental wear and tear.
- Dedicated Support: Valent's commitment to quality reduces the need for post sale support, but they will help with any issues. Valent representatives can provide product and selection support in the design process. End-of-line testing reduces installation time.
Specifications Overview
| Category | VX, VXE & VXC CASING | ||||
|---|---|---|---|---|---|
| 12 | 112 | 212 | 312 | 412 | |
| AIRFLOW | |||||
| Minimum (cfm) | 500 | 800 | 2,250 | 3,750 | 8,000 |
| Maximum (cfm) | 2,500 | 6,500 | 12,500 | 18,000 | 29,200 |
| COOLING TYPE | |||||
| Packaged, air cooled (Tons) | 3, 4, 5, 6, 7 | 5, 7, 10, 12.5, 15 | 15, 17.5, 20, 25, 30 | 25, 30, 40, 50, 60 | 50, 60, 70, 80, 90 |
| COOLING COMPONENTS | |||||
| Chilled water (Circuits) | 1 | 1 | 1 | 2 | 2 |
| Air source heat pump | Coming soon | Option | Option | Not available | Not available |
| No cooling | Option | Option | Option | Option | Option |
| Lead inverter scroll compressor | Standard | Standard | Standard | Standard | Standard |
| Modulating hot gas reheat | Option | Option | Option | Option | Option |
| Lead EC modulating condensing fans | Standard | Standard | Standard | Standard | Standard |
| All EC modulating condensing fans | Not applicable | Option | Option | Option | Option |
| INDIRECT GAS FURNACE | |||||
| Minimum (MBh) | 75 | 100 | 300 | 600 | 800 |
| Maximum (MBh) | 200 | 300 | 600 | 1,200 | 2,000 |
| Turndown (NG) | Up to 16:1 | Up to 16:1 | Up to 16:1 | Up to 16:1 | Up to 10:1 |
| Turndown (LP) | Up to 16:1 | Up to 16:1 | Up to 16:1 | Up to 16:15 | Up to 50:1 |
| ELECTRIC HEAT | |||||
| Minimum (kW) | 5 | 15 | 35 | 40 | 80 |
| Maximum (kW) | 60 | 60 | 120 | 230 | 230 |
| Air source heat pump | Coming soon | Option | Option | Not available | Not available |
| Hot water | Option | Option | Option | Option | Coming soon |
| Steam coil | Not available | Option | Option | Option | Not available |
| OTHER HEAT | |||||
| ENERGY RECOVERY | |||||
| Full width wheel Polymer | Option | Option | Option | Option | Coming soon |
| Full width wheel Aluminum | Not available | Option | Option | Option | Coming soon |
| Enthalpy core Polymer | Not available | Option | Not available | Not available | Not available |
| Enthalpy core Fiber | Not available | Option | Not available | Not available | Not available |
| DUCT CONNECTIONS | |||||
| Bottom supply/return | Standard | Standard | Standard | Standard | Standard |
| Side supply | Option | Option | Option | Option | Option |
| Side return | Not available | Option | Option | Option | Option |
| End return | Option | Option | Option | Option | Option |
| CONTROLS | |||||
| Full controls | Standard | Standard | Standard | Standard | Standard |
| Heat-cool only | Option | Optiond | Optiond | Option | Option |
| Web user interface | Standard | Standard | Standard | Standard | Standard |
| MONITORING | |||||
| Damper | Option | Option | Option | Option | Option |
| Fan | Option | Option | Option | Option | Option |
| CONSTRUCTION | |||||
| Injected foam insulation | 2" double-wall R-13 | 2" double-wall R-13 | 2" double-wall R-13 | 2" double-wall R-13 | 2" double-wall R-13 |
| Exterior | Gray prepainted | Gray prepainted | Gray prepainted | Gray prepainted | Gray prepainted |
| Interior | Galvanized | Galvanized | Galvanized | Galvanized | Galvanized |
| CERTIFICATION | |||||
| AHRI 1060 | Compliant | Compliant | Compliant | Compliant | Compliant |
| ASHRAE 90.1-2019 | Compliant | Compliant | Compliant | Compliant | Compliant |
| DOE 2023 | Compliant | Compliant | Compliant | Compliant | Compliant |
Refer to Valent CAPS® selection software or the Valent Mechanical IOMs for additional detail.
a Based on packaged DX cooling, indirect gas heating, 100% outdoor air, 1.5 in. wg supply external and 0.5 in. wg return air static pressure. Airflows will vary based on unit configuration.
b LP furnaces available on 600 and 800 mbh furnaces only.
c Max kW is dependent on unit voltage.
d Not available with the fiber core.
Dimensions and Weights
Diagrams illustrating unit elevations with and without energy recovery wheels, and with enthalpy core heat exchangers are available in the original document.
| CASING | Height (in) | Width (in) | Lengtha (in) | Length with wheel (in) | Length with core (in) | Hood length (in) | Condenser width (in) | Nominal weight (lbs) | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lw | Ls | Lw | Ls | VX | VXE | VXC | ||||||
| VX-12 | 58.1 | 44.0 | 82.2b | 125.0 | N/A | N/A | N/A | 22.3 | N/A | 1,180 | 1,780 | N/A |
| VX-112 | 59.3 | 52.5 | 98.6a | 149.5a | 180.5 | 180.5 | N/A | 22.1/40.0b | 30.1 | 2,700 | 3,400 | 3,800 |
| VX-212 | 72.5 | 68.2 | 109.0a | 163.2a | 197.3 | 197.3 | N/A | 27.1/38.0b | 30.1 | 4,500 | 5,100 | 5,675 |
| VX-312 | 101.3 | 98.0 | 155.2d | 247.9 | 276.9 | N/A | N/A | 39.0b | N/A | 7,750 | 9,600 | N/A |
| VX-412 | 101.8 | 100.9 | 283.6/249.4e | N/A | N/A | N/A | N/A | 36.25 | N/A | 11,600g | N/A | N/A |
a Powered exhaust units with no energy recovery, whether bottom or side return, have the same length as the wheel units with bottom return. This applies to the VX-112 and VX-212.
b If the VXE-312 has an exhaust fan, the exhaust blower bump-out will have a length of 48.4 inches.
c If the VX-12 has an indirect gas furnace, the furnace bump-out will have a length of 13.3 inches.
d If the VX-312 has powered exhaust but no energy recovery, the length will be 203.6 inches for bottom return and 222.7 inches for side return.
e Longer dimension reflects VXC hood length.
f Longer dimension reflects 90-100 ton configurations, shorter dimension reflects 50-80 ton configurations. Units without cooling will have a length of 155 inches.
g If the VX-412 is configured without cooling, the nominal weight will be 6,300 pounds. VX-412 50-80 ton configurations will have a nominal weight of 10,325 pounds.
