Therma-Stor Ultra-Aire DEH 3000 Installer'S & Owner'S Manual Download Page 5

crawlspace. Duct the other side of the tee to the air return of the 
existing HVAC system. If the existing HVAC system has a central 
return, duct the other side of the tee to the air supply of the existing 
HVAC system. Connect a duct from outside to the 6" collar of the 
Ultra-Aire if you wish to provide fresh make-up air. 

3.4E Installation in an Attic with an Existing Forced 

Air HVAC System
ALWAYS install a catch pan for condensate under the 

Ultra-Aire in an attic or condensate may drip down on 

the ceiling of the living space below.

Locate a separate return for the Ultra-Aire in a central area of the 
structure. Duct the supply of the Ultra-Aire to the air supply of the 
existing HVAC system. If the existing HVAC system has a central 
return, duct the supply of the Ultra-Aire to the air supply of the 
existing HVAC system. Connect a duct from outside to the 6" collar 
of the Ultra-Aire if you wish to provide fresh make-up air.

3.4F Installation in a Structure with Two Forced Air 

HVAC Systems

Attach the Ultra-Aire return to to a independent return from the 
upper level. Attach the Ultra-Aire supply to the supply of the 
basement HVAC system. This will promote circulation of air through 
the whole structure from the upper level to the lower level through 
the Ultra-Aire . If the Ultra-Aire is not connected to both HVAC 
systems, it will not control the humidity and ventilation of the entire 
structure. Connect a duct from outside to the 6" collar of the Ultra-
Aire if you wish to provide fresh make-up air.

3.4G Installation in a Structure with No Existing 

Forced Air HVAC Systems

When installing the Ultra-Aire in a structure that does not have a 
forced air HVAC system, a single return for the Ultra-Aire should 
be installed in central open area of the structure. 

DO NOT

 locate 

the return in a bathroom or a kitchen. The supply of the Ultra-
Aire should be located in the remote areas of the structure (such 
as bedrooms, den, etc.). By ducting this way the air inside the 
structure will circulate through the Ultra-Aire to be filtered and 
dehumidified. Connect a duct from outside to the 6" collar of the 
Ultra-Aire if you wish to provide fresh make-up air.

3.5 Quiet Installation

Loosen the compressor mounting bolts from the base of the unit. 
Do not remove the bolts, but loosen them so the compressor 
mounting grommets are not compressed. These bolts are tightened 
at the factory to prevent damage during shipping. Loosening them 
will reduce the amount of compressor vibration. Make sure none 
of the compressor tubes are pressed against the cabinet or front 
panel.

A length of 10 feet or more of acoustical flex ducting on the outlet 
of the Ultra-Aire will reduce air noise from the blower. A length of 
flexible ducting on all Ultra-Aire duct connections is recommended 

to reduce noise and vibration transmitted to rigid ductwork in the 
structure.

4. Controls

The Ultra-Aire can be equipped with various accessories to 
enhance its operation. A remote control panel must be used with 
the Ultra-Aire . There are two remote control panels from which to 
choose. The humidity/fan control panel is used to control humidity 
and the fan. The ventilation timer and humidity control panel is 
used to control ventilation, humidity and the fan.

4.1 Humidity/Fan Control Panel

See Figure 1: The humidity/fan control panel automatically controls 
the humidity of the living space. The humidity/fan control panel 
contains an adjustable humidity control and a fan switch. This 
panel should be mounted in a central area of the structure where 
it can accurately sense the humidity of the air in the living space. 
The panel has small perforations that must remain open to the air 
within the living space for accurate humidity sensing.

The humidity/fan control panel can be used in conjunction with 
the optional fresh air damper. When used with the optional fresh 
air damper, the fan/filter switch will act as a fresh air ventilation 
control. When the switch is ON (in this configuration), the fan will 
run, the fresh air damper will open, and fresh air will be filtered 
and brought into the structure. When the switch is OFF, the fresh air 
damper will close and the fan will operate only when the humidity 
control calls for dehumidification.

4.2 Ventilation Timer and Humidity Control Panel

See Figure 2: The ventilation timer and humidity control panel 
automatically controls both the ventilation and the humidity of 
the living space. The ventilation timer and humidity control panel 
contains an adjustable humidity control, a fan switch, and a 
ventilation timer. This panel will control the humidity and allow 
programmed ventilation of the living space. This panel works 
in conjunction with the optional fresh air damper to provide 
ventilation.

This panel should be mounted in a central area of the structure 
where it can accurately sense the humidity of the air in the living 
space. The panel has small slots that must remain open to the air 
within the living space for accurate humidity sensing.

FOR HVAC INSTALLER ONLY

4

5

Ultra-Aire 100V Installer’s & Owner’s Manual

Ultra-Aire 100V Installer’s & Owner’s Manual

Figure 1:

Humidity/Fan Control Panel
Part No. 4024155

Figure 2: 

Ventilation Timer  

and Humidity Control Panel
Part No. 4024125

Summary of Contents for Ultra-Aire DEH 3000

Page 1: ...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...

Page 2: ...your Ultra Aire 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 Install the unit with spa...

Page 3: ...building supply plumbing and hardware stores It will slide tightly inside the end of the drain hose If more than one length of pipe is required they can be joined with a short piece cut from the end o...

Page 4: ...calling 1 800 533 7533 for recommendations regarding the use of higher flows with your specific application The outside air duct should be connected to the 6 round collar on top of the unit The 6 roun...

Page 5: ...ake sure none of the compressor tubes are pressed against the cabinet or front panel A length of 10 feet or more of acoustical flex ducting on the outlet of the Ultra Aire will reduce air noise from t...

Page 6: ...r of the timer face The reset button is the small recessed button with an R beneath it located below the 1 7 and h buttons Press the reset button in until the display disappears Release the reset butt...

Page 7: ...pot Test Method 52 76 This filter is much more efficient than the standard air filter and is able to catch much smaller particles that can aggravate allergies The high efficiency air filter is 4 inche...

Page 8: ...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 contro...

Page 9: ...Range Accuracy 10 95 RH 5 Auxillary Relay Capacity 5 Amps 24VAC Temp Range Accuracy 30 90 F 2 Size 4 95 L x 1 06 W x 4 19 H Major Operations n Digital control of Relative Humidity Digital Set Point n...

Page 10: ...n handling the high efficiency pleated paper filter Do not attempt to clean the high efficiency pleated paper filter It should be replaced when it becomes restrictive See Figure 7 7 Service CAUTION Se...

Page 11: ...or the correct charge weight and refrigerant type 7 5 Fan Replacement The centrifugal fan has a PSC motor and internal thermal overload protection If defective the complete assembly must be replaced 1...

Page 12: ...t carbon deposits the burn out occurred while the compressor was not rotating Contaminants are therefore largely confined to the compressor housing A single installation of liquid and suction line fil...

Page 13: ...gerant suction tube between the accumulator and the compressor It will automatically shut the compressor off if the low side refrigerant temperature drops due to excessive frost formation on the evapo...

Page 14: ...ULTRA AIR 100V ELECTRICAL SCHEMATIC 14 Ultra Aire 100V Installer s Owner s Manual...

Page 15: ...ULTRA AIRE 100V PICTORIAL ELECTRICAL DIAGRAM 15 Ultra Aire 100V Installer s Owner s Manual...

Page 16: ...anasonic 2R12S3R126A 6A 10 4022144 1 Compressor Overload TI MRA98706 673 not shown 11 4021396 1 Condenser Coil 12 4022445 1 Cord Wire Harness 13 4025087 1 Filter Drier 14 4021626 1 Hose Drain Pan 56 I...

Page 17: ...32 4024153 1 Cover for Items 28 29 not shown 33 4021495 1 Knob Black 25 shaft 34 4024150 1 Instructions Humidity Fan not shown 35 4024122 1 Instructions Ventilation Timer Humidity not shown 36 4025560...

Page 18: ...ULTRA AIRE 100V EXTERNAL INSULATION KIT 18 Ultra Aire 100V Installer s Owner s Manual...

Page 19: ...rough the rubber grommet 4 Place the box in the hole and put the mounting tabs through the slots in the box sides as shown 5 Place the two 3 4 long 8 screws through the tab slots and into the holes in...

Page 20: ...costs related to changes to a Product or Component that may be required by any codes laws or regulations that may become effective after initial purchase of the Product by Customer Customer Responsib...

Page 21: ...rmastor 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 purp...

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