Ultra-Aire SD12
The First Split Whole House Ventilating Dehumidifier With No Added Sensible Heat Load — Specifically Designed for Hot, Humid Climates
Dehumidifier and Condensing Unit Specifications
| Part Number: | 4033175 |
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| Shipped Together on Pallet | |
| Pallet Dimensions: | 42″W x 32″H x 42″L |
| Pallet Weight: | 220 lbs. |
Dehumidifier Specifications
| Part Number: | 4033175 |
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| Blower: | 406 CFM @ 0.0″ WG 374 CFM @ 0.2″ WG 348 CFM @ 0.4″ WG |
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| Power: | 160 Watts @ 80°F and 60% RH |
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| Supply Voltage: | 115 VAC – 1 Phase – 60 Hz |
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| Current Draw: | 1.4 Amps |
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| Energy Factor: | 3.1 L/kWh |
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| Operating Range: | 49°F Min and 95°F Max |
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| Sized For: | Up to 4,000 Sq. Ft. – Typical |
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| Minimum Performance at 80°F and 60% RH | |
| Water Removal: | 184 Pints/Day |
| Sensible Cooling: | 4,300 BTUs/Hour |
| Efficiency: | 6.6 Pints/kWh |
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| Duct Connections: | 6″ Round Inlet 10″ Round Inlet 10″ Oval Outlet |
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| Air Filter: | Standard MERV 13 Standard Pleat Size: 16″ x 20″ x 2″ Efficiency: 65% ASHRAE Dust Spot Optional MERV 14 Embossed Pleat Size: 20″ x 24″ x 4″ Efficiency: 95% ASHRAE Dust Spot |
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| Power Cord: | 9′, 115 VAC, Ground |
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| Drain Connection: | ¾″ Threaded Female NPT |
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| Dimensions: | 20.25″W x 21.75″H x 41.5″L |
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| Weight: | 110 lbs. |
Condensing Unit Specifications
| Part Number: | 4033192 |
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| Power: | 1,080 Watts @ 80°F and 60% RH |
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| Supply Voltage: | 115 VAC – 1 Phase – 60 Hz |
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| Current Draw: | 9.7 Amps |
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| Min. Circuit Ampacity: | 20 Amps |
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| Max. Fuse/Breaker Size: | 20 Amps |
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| Refrigerant: | R410a |
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| Operating Range: | 40°F Min, 115°F Max |
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| Power Cord: | Hard Wired |
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| Dimensions: | 10″W x 25.5″H x 33″L |
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| Weight: | 75 lbs. |
Attic Installation
Ultra-Aire SD12 Attic Installation (Alternate Install Options)
- The indoor air return should come from an open area on the first floor or main level of the home / building.
- The Ultra-Aire supply can be ducted into the forced air system downstream of the air conditioning coil. The duct connection should be perpendicular to the air flow. You may also run an independent supply directly from the dehumidifier into a large open room. Depending on the application, multiple returns and or supplies may be needed.
- The optional six inch fresh air intake should be located at least six feet away from any exhaust ports, such as, dryer, range hood, or combustion device exhaust. Intake location should be consistent with local codes.
- A section of flex duct or vibration absorbing duct should be located between the connections of the Ultra-Aire ductwork and the forced air system ductwork. (When ducting into the forced air systems)
- A back draft damper should be installed when ducting into the forced air system. This prevents counter-flow of the A/C supply air through the UA SD12. A back draft damper is not needed when ducted independently.
- If placed over a finished area, a secondary drip pan is recommended
- Place condensing unit outside of the structure on a level pad (or bracket). If placed on a roof, vibration dampening material may be used.
- Install a dedicated 120VAC branch circuit for the condensing unit.
- Supply a line set suitable for use with R410A refrigerant to connect the indoor unit to the outdoor unit. The maximum allowable length of the line set is 50 feet. Braze the lines to the dehumidifier and the condensing unit.
Please Note: Therma-Stor does not recommend drawing air from the return ducting system and discharging into the supply, because it could reduce the capacity and may cause counterflow through the air conditioning unit. Preferred installation is to draw air from a separate return duct located in the central part of the home. Duct the outlet air into the supply duct for distribution throughout the home. A backdraft damper prevents air from the supply duct from being pushed backward through the Ultra-Aire SD12 when central (A/C) fan is on and the Ultra-Aire fan is off.
The revolutionary new Ultra-Aire SD12 transforms how residential humidity issues are solved in hot humid climates. By removing over 180 pints of water per day and providing sensible cooling to the living space — all while adding no sensible heat load — the SD12 is the most efficient, cost-effective way to control humidity, enhance comfort, and boost indoor air quality.
The Ultra-Aire SD12 is the total solution for your customers in hot, humid climates; it provides all the benefits of supplemental whole house dehumidification with none of the drawbacks: heat load, noise, and vibration.
See the Ultra-Aire SD12 in Action
The Inside Story On Humidity & Fresh Air
Andy Äsk Inducted into IAQA Hall of Fame
It is our pleasure to report that Andy Äsk, engineering consultant for Ultra-Aire, was inducted into the Indoor Air Quality Association (IAQA) Hall of Fame at the recent 2018 IAQA Winter…
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