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INSTALLER’S & OWNER’S MANUAL
HVAC INSTALLER: PLEASE LEAVE MANUAL FOR HOMEOWNER
P/N 4025700 • Serial No.___________________________
The Ultra-Aire 90H dehumidifier performs multiple functions in
Fresh Air Ventilation (optional)
a compact enclosure; high-capacity dehumidification, fresh air
Fresh air may be ducted to the unit and regulated by a variety of
ventilation, and particulate filtration.
controls in order to provide desired ventilation rates.
Dehumidification
Air Filtration
The h
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TABLE OF CONTENTS Introduction .............................................................................1 4.9A Setting the Time ....................................................9 Features & Benefits .................................................................1 4.9B Ventilation Schedule ..............................................9 Safety Precautions ...................................................................3 4.9C Automatic or Manual Mode .............................
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SAFETY PRECAUTIONS Read the installation, operation and maintenance instructions carefully before installing and operating this device. Proper adherence to these instructions is essential to obtain maximum benefit from your Ultra-Aire 90H 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 space to access the front panel for maintenance and service. DO N
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FOR HVAC INSTALLER ONLY n 4 .1C Low Voltage Wiring 1. I ntended Application for Ultra-Aire 90H Unit location should be in an area where field wiring the remote For the ideal installation, draw air from the central part of the home controls (low voltage) to the unit will be possible. and return it to isolated areas of the home like the bedrooms, den, utility room, or family room. The ductwork of the existing heating n 4 .1D Back-Draft Damper system can be used to supply air to the home.
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FOR HVAC INSTALLER ONLY remote location when the water level in the pump’s reservoir rises to close the float switch. The pump also contains a safety float IMPORTANT switch. The white leads from this switch extend from beneath the Do not install the control panel where it may not accurately pump cover. This switch should be installed in series with the field sense the relative humidity such as near HVAC supply wire that connects the blue (#5) lead from the UA-90H to the the registers, ne
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FOR HVAC INSTALLER ONLY Isolated Areas: Effective dehumidification may require that ducting In cold climates or areas where the outdoor dew point is low at be branched to isolated, stagnant air flow areas. Use 8" or larger times, ventilation can be used to dehumidify the structure, making diameter branch ducting to each of two or three areas, use 6" or the UA-90H capable of year-round drying. This is accomplished larger to each of four or more areas. Provisions must be made to by bringing the
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FOR HVAC INSTALLER ONLY Crawlspace Installation: Install a separate return for the UA-90H 4.4E Installation in a Structure with No Existing Forced in a central area of the structure. Optional: Duct the supply of the Air HVAC System UA-90H to a 10" x 10" x 10" tee/damper that is 20% open to When installing the UA-90H in a structure that does not have a the crawlspace if desired. Duct the other side of the tee to the forced air HVAC system, a single return for the UA-90H should air suppl
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FOR HVAC INSTALLER AND HOMEOWNER To determine how each control operates the UA-90H, it must When the fan/filter switch is in the “ON” position, the motorized first be determined which control is being used and whether damper will open and the fan will run, introducing outside air. The or not the 90H is ducted for fresh air ventilation. Refer to unit may or may not be dehumidifying in the ventilation mode, appropriate section. depending on the humidity control setting. See Section 4.7 for hum
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FOR HVAC INSTALLER AND HOMEOWNER 4.9 Ventilation Timer 4.9B Ventilation Schedule The ventilation timer controls the fan and the motorized fresh Slide the switch in the upper right hand corner to the program air damper. When the ventilation timer is activated, the UA-90H symbol P. “ON” will appear to the right of the time and the number will circulate the indoor air, and bring in fresh air from outside. “1” will appear in the lower right hand corner of the display. The The ventilation timer s
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FOR HVAC INSTALLER ONLY 8. Test connections (see Section 2.6) 5. D EH 3000 Digital Control Installation Instructions Control Part No. 4026570 5.1 Specifications Part # (P/N) 4026570 Model: DEH 3000 Digital Control Electrical: 24 VAC Humidity Range: 10 – 95% RH Humidity Accuracy: +/- 5% Output: 3 Amps 24 VAC Relay Capacity 5 Amps Temp Range/Accuracy 2% Size 4.95" wide x 4.19" high 5.2B Wiring FOR HVAC INSTALLER ONLY: WARNING: DO NOT ALLOW THE YELLOW LEAD FROM THE ULTRA-AIRE TO CONTACT THE
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FOR HVAC INSTALLER ONLY Dehumidification Operation COM/NO COM/NC UA Base Unit White ON CLOSED OPEN OFF OPEN CLOSED Common uses (assuming standard thermostat wiring color schemes as noted): Disengage A/C during dehumidification Redirect the yellow thermostat wire to the NC DEH 3000 Wiring Diagram terminal. Wire the yellow wire from the A/C to the COM (B) terminal. Engage A/C during dehumidification DMP COMP FAN Connect a wire from the “R” terminal on the the thermostat to the “com” ter
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FOR HVAC INSTALLER ONLY DEHUMIDIFIER DEACTIVATES WHEN THE motorized damper in series with these connections, or the AIR-CONDITIONER IS RUNNING white wire must not be connected to the control. Mis-wiring • The common wire on the thermostat transformer may result in transformer damage. (black) needs to be wired with the yellow wire from the After connections have been verified, this short test will dehumidifier. confirm proper wiring. • The Red wire on the thermostat needs to be wired with
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FOR HVAC INSTALLER AND HOMEOWNER 8. V erify additional optional control operations such as fan interlock or lockout. 9. Proceed to operation/setting section. FOR INSTALLER & HOMEOWNER: 5.3 Operation 5.3A Display • W hen there is power to the control, the control display will show the time, day, humidity, and temperature. • When the control is turned on, the setpoint, fan status, auto/hold mode, and fresh air vent status is displayed. • When a key is pressed the display will light. • T he
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FOR HVAC INSTALLER ONLY AND HOMEOWNER Operation continuously are filtration and air recirculation. The initial dead band setting (the range that the dehumidifier “AUTO” – indicates the fan will run when the control calls for cycles on and off) is 3%. With a setpoint of 50%, the dumidifier dehumidification or ventilation. If the control has not called for turns on when the reading reaches 53%. The dehumidifier dehumidification for 3 hours, the control will automatically run continues to rem
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FOR HVAC INSTALLER ONLY AND HOMEOWNER The ventilation indicator “O” will be displayed whenever the unit There are two programs available for ventilation Monday through Friday. There are also two programs for Saturday and is ventilating. The fan operation indicator “O” will also be lit. Sunday. No other choice of days is available. There are three damper operation modes, “OPEN –HOLD,” “CLOSED – HOLD” and “PROGRAM” (denoted by “ON TIME” Each program has: – “OFF TIME.” Refer to section 3.8
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FOR HVAC INSTALLER AND HOMEOWNER 2. Press the program enter key to toggle to the “open for” feature will not need to be used. If temperature cutout is desired, setting. Using the up/down “RH” keys, change the program the setpoint by pressing the “PROGRAM ENTER” duration that the damper will ventilate fresh air. button. Press RH until “TEMP CUTOUT” is flashing. Use “RH” up or “RH” down to adjust setpoints. 3. Press the program enter key to toggle to the “closed for” setting. Using t
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ATTENTION INSTALLER WIRE THE UNIT AND CONTROL PACKAGE AS SHOWN IN THE DIAGRAM BELOW Humidity/Fan Control Panel Humidity Control D.BLU-5 YEL-2 Blower Switch GRN-6 GRN-6 PNK WHT-1 RED-3 YEL-2 Dehumidifier D.BLU-5 Control Part No. 4024155 Do not connect these leads Ventilation Timer/ directly together or damage Humidity Control Panel Optional to the transformer will result. Damper Humidity Control D.BLU-5 YEL-2 VIO-4 ORG GRN-6 L.BLU PNK REd-3 GRN-6 WHT-1 RED-3 GRY YEL-2 Control Part No. 4024125 D
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FOR HVAC INSTALLER AND HOMEOWNER 7. Maintenance 7.1 Standard Air Filter The UA-90H is equipped with a MERV 11 media 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. DO NOT operate the unit without the standard filter or with a less effective filter than the standard filter. The heat exchange coils inside t
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ULTRA-AIRE 90H WIRING DIAGRAM 8. Wiring Diagrams UA-90H with Humidity/Fan Control UA-90H with Ventilation Timer/Humidity/ (4024155) Fan Control (4024125) 18 Ultra-Aire 90H Installer’s & Owner’s Manual 19 Ultra-Aire 90H Installer’s & Owner’s Manual
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FOR HVAC INSTALLER ONLY 9. Optional Parts List: UA-90H Indoor Air Quality System Item Part No. Description 1 4024125 Control Panel Assembly, Ventilation Timer & Humidity Control 2 4024155 Control Panel Assembly, Humidity/Fan 3 4026570 DEH 3000 Digital Controller 4 4025287 Filter Box 5 4026151 14"x14"x1" Standard UA 90-H Filter 6 4024369 2"x20"x24" Filter (not shown) Use only with Filter Box 7 4024370 4"x20"x24" Filter (not shown) Use only with Filter Box 8 4026451 Cond
