Therma-Stor Ultra-Aire UA-150H Installer's & Owner's Manual
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Therma-Stor Ultra-Aire UA-150H Installer's & Owner's Manual

Whole house ventilating dehumidifier
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UA-150H • Part No. 4024371 • Serial No.________________________________
Dehumidification
The highly efficient Ultra-Aire 150H dehumidifier utilizes refrigeration
to cool the incoming air stream below its dew point. This cooled and
drier air is used to pre-cool the incoming air stream resulting in a
significant increase in overall efficiency. After the pre-cooling stage,
the processed air is reheated by passing through the condenser coil.
The heat removed by the evaporator coil is returned to the air stream,
resulting in an overall temperature increase of the air leaving the unit.
The Ultra-Aire 150H is controlled by 24 volt remote wired controls. A
variety of controls are available suitable to various applications.
HVAC INSTALLER: PLEASE LEAVE MANUAL FOR HOMEOWNER
© 2006 Therma-Stor LLC
INSTALLER'S & OWNER'S MANUAL
Ultra-Aire 150H Whole House
Ventilating Dehumidifier
Fresh Air Ventilation
Optional fresh outdoor air may be ducted to the unit via a six inch
round duct. This provides fresh air to dilute pollutants and maintain
high oxygen content in the air. The amount of fresh air ventilation can
be regulated by a variety of dampers and controls.
Air Filtration
The UA-150H includes air filtration to improve indoor air quality. A
MERV-11 media filter is standard. An optional MERV-14 deep pleated
95% media filter is available for optimum air filtration and to reduce
potentially harmful airborne particles. If the optional filter is chosen,
the standard filter operates as a prefilter.
Manual P/N TS-245h 6/07

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Summary of Contents for Therma-Stor Ultra-Aire UA-150H

  • Page 1 Air Filtration The UA-150H includes air filtration to improve indoor air quality. A MERV-11 media filter is standard. An optional MERV-14 deep pleated 95% media filter is available for optimum air filtration and to reduce potentially harmful airborne particles.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Table of Contents Safety Precautions ... 3 1. Intended Application ... 4 2. Specifications ... 4 3. Installation ... 4 3.1 Location ... 4 3.2 Electrical Requirements ... 4 3.3 Condensate Removal ... 5 3.4 Ducting ... 5 3.4A Installing Duct Collars ...

  • Page 3: Safety Precautions

    Proper adherence to these instructions is essential to obtain maximum benefit from your UA-150H indoor air quality system. READ AND SAVE THESE INSTRUCTIONS • The device is designed to be installed INDOORS IN A SPACE THAT IS PROTECTED FROM RAIN AND FLOODING.

  • Page 4: Intended Application

    If fresh air ventilation is desired, thought should be given to the location for the fresh air ducting. A 6” round insulated duct will have to be installed on the UA-150H and run to the outside of the structure to bring in fresh air. Use an 8” insulated round duct for lengths of more than 50 feet or if more than 100 CFM is needed.

  • Page 5: Condensate Removal

    If fresh make-up air is desired see section 3.4C. The outlet of the UA-150H is located on the end of the unit. A second 10” round collar is supplied with the unit. Cut and remove the safety grid, then bend the tabs on the collar inside the hole in the cabinet end.

  • Page 6: C Ducting For Fresh Air

    Crawl Space Installation: Install a separate return for the UA-150H in a central area of the structure. Duct the supply of the UA-150H to a 10” x 10” x 10” tee/damper that is 20% open to the crawl space if desired.

  • Page 7: E Installation In A Attic

    Refer to section 3.4B for branch duct sizing. Connect an insulated duct from outside to the 6” collar of the UA-150H if you wish to provide fresh make-up air. 3.5 Quiet Installation The compressor is attached to the cabinet with two cable ties to secure it during shipment.

  • Page 8: Ventilation Timer & Humidity Control Panel

    Adjustment Knob dehumidification rate; the unit will simply run longer to reduce the area's RH to the setting. The UA-150H unit (and refrigerant-based dehumidifiers in general) will reduce a warm space's RH to a lower level than that of a cool space. It is therefore pointless to set the humidity control to excessively low levels in cool rooms;...

  • Page 9: Low Pressure Control

    When the slide switch in the upper left of the timer is set to AUTO mode, the UA-150H will ventilate when the scheduled programs call for ventilation. When the slide switch in the upper left of the timer is set to manual (set to hand symbol on the right), the operation of the timer is controlled by the I/O button only.

  • Page 10: Attention Installer

    ATTENTION INSTALLER WIRE THE UNIT AND CONTROL PACKAGE AS SHOWN IN THE DIAGRAM BELOW WARNING: DO NOT allow the yellow lead from the unit to contact the red lead or the white lead from the unit or damage to the transformers will result. Do not direct connect the white lead on the unit to the violet lead on the ventilation control or damage to the transformer will result.

  • Page 11: Deh 2000 Digital Control

    FOR HVAC INSTALLER ONLY 5. (DEH 2000) DIGITAL CONTROL Installation Instructions 5.1 Specifications Model: 4024539 Electrical: 24 VAC Humidity Range: 20 – 90% RH Humidity Accuracy: +/- 4% Output: 3 Amps 24 VAC 5.2 Installation This control panel must be installed in the conditioned space and in accordance with all applicable codes and standards.

  • Page 12: C Location

    FOR HVAC INSTALLER AND HOMEOWNER WARNING Warning: Connecting the white wire to the control terminal without use of a motorized damper could create a short resulting in damage to the transformer. The white wire controls the motorized damper that can be installed into a fresh air duct.

  • Page 13: E Setting Relative Humidity Set Point

    FOR HVAC INSTALLER ONLY AND HOMEOWNER 5.3E Setting Relative Humidity Set point The relative humidity Set point operates the dehumidifier function of the Ultra-Aire. It has no effect on any other function of the unit. The control senses the ambient relative humidity of the space in which it is located.

  • Page 14: K Ventilating Or Dehumidifying To Control Indoor Relative Humidity Levels

    FOR HVAC INSTALLER ONLY AND HOMEOWNER 6.3I Intermittent or Programmed Ventilation With the damper in program mode (denoted by “Pr” when setting the damper operation) the system will operate the ventilation function according to the current ventilation program. There are 4 programs available for ventilation Monday through Friday.

  • Page 15: Maintenance

    FOR HVAC INSTALLER ONLY 6. Maintenance 6.1 Standard Air Filter The UA-150H is equipped with a pleated cloth air filter. This filter should be checked every three months. Operating the unit with a dirty filter will reduce dehumidifier capacity and efficiency and may cause the compressor to cycle off and on unnecessarily on the defrost control.

  • Page 16: Troubleshooting

    FOR HVAC INSTALLER ONLY 7.3 Troubleshooting No dehumidification, neither impeller fan nor compressor run with fan switch and ventilation timer OFF. 1. Unit unplugged or no power to outlet. 2. Humidity control set too high or defective (Sec. 3.3 & 5.7A) 3.

  • Page 17: Refrigerant Charging

    FOR HVAC INSTALLER ONLY 7.4 Refrigerant Charging If the refrigerant charge is lost due to service or a leak, a new charge must be accurately weighed in. If any of the old charge is left in the system, it must be recovered before weighing in the new charge. Refer to the unit nameplate for the correct charge weight and refrigerant type.

  • Page 18: C Replacing Compressor-Nonburn Out

    The home should be ventilated with fresh air as suggested by applicable codes and standards. If the UA-150H fails to ventilate as expected, check that the time on the timer is correct. For the timer to carry out the program schedule, the slide switch in the upper left corner on the timer must be set to “AUTO”.

  • Page 19: Low Pressure Control

    7.11 Condensate Pump Kit An optional condensate pump kit is available from the factory for use with the UA-150H. Condensate is automatically pumped to a remote location when the water level in the pump's reservoir rises to close the float switch.

  • Page 20: Pictorial Electrical Diagram

    FOR HVAC INSTALLER ONLY Pictorial Electrical Diagrams of UA-150H Ultra-Aire 150H Installer’s & Owner’s Manual...

  • Page 21: Wiring Diagrams

    FOR HVAC INSTALLER ONLY Wiring Diagrams Ultra-Aire 150H Installer’s & Owner’s Manual...

  • Page 22: Service Parts List

    SERVICE PARTS LIST: UA-150H ITEM PART NO. 4024369 4017777 4023645 4022595 4022484 4022740 4022563 4021470 4021648 4022557 4024270 4020924 4024360 4025087 4021626 4024368 4023928 4022219 4021332 4022487 4024359 40218181 4024365 4024361 The UA-150H QTY. DESCRIPTION Air Filter, Pleated Cloth Capillary Tube, .059" X .124" X 32.00" (not shown) Compressor Service Kit, Carlyle (EBA120111A) (Includes Compressor, Capacitor &...

  • Page 23: Optional Parts List

    OPTIONAL PARTS LIST: UA-150H ITEM PART NO. 4024370 4024375 4022220 4024155 4024125 4023660 4023672 4024153 4021495 4024150 4024122 4025560 4022486 4024377 4024431 QTY. DESCRIPTION Air Filter, High Efficiency, Pleated Microglass Paper, 90%-95% Check Damper, 10" Diameter (not shown) Condensate Pump Kit, External Control Panel Assembly, Humidity/Fan Control Panel Assembly, Ventilation Timer &...

  • Page 24: Vibration Isolation Kit

    1. Lift one end of the UA-150H at least 12” off the floor. 2. Slide (2) of the nuts over each screw. 3. Attach the screws (with nuts) to the holes located in the bottom corners of the UA-150H. 4. Slide the grommet over the screw and nuts assembly.

  • Page 25: External Insulation Kit

    INSTRUCTIONS FOR APPLYING THE INSULATION TO THE UA-150H The UA-150H must be clean, dry and at room temperature to apply the insulation kit. The insulation has a pressure sensitive adhesive with release paper applied to one side. To apply the insulation, remove the release paper and press the sheet firmly against the UA-150H.
  • Page 26 ATTENTION INSTALLER Ultra-Aire 150H Installer’s & Owner’s Manual...

  • Page 27: Warranty

    ULTRA-AIRE 150H Dehumidifier Limited Warranty WARRANTOR: Therma-Stor LLC PO Box 8680 Madison, WI 53708 Telephone: 1-800-533-7533 WHO IS COVERED: This warranty extends only to the original residential end-user of the Ultra-Aire 150H dehumidifier, and may not be assigned or transferred. FIRST YEAR WARRANTY: Therma-Stor LLC warrants that, for one (1) year the Ultra-Aire 150H dehumidifier will operate free from any defects in...
  • Page 28 PO Box 8680 • Madison, WI 53708 Phone: 608-222-5301 • Fax: 608-222-1447 Web: www.thermastor.com • Email: sales@thermastor.com Information in this document is subject to change without notice. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Therma-Stor LLC.

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