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INSTALLER’S & OWNER’S MANUAL
Ultra-Aire 150H Whole House
Ventilating Dehumidifier
UA-150H • Part No. 4024371 • Serial No.________________________________
Dehumidification Fresh Air Ventilation
The highly efficient Ultra-Aire 150H dehumidifier utilizes refrigeration Optional fresh outdoor air may be ducted to the unit via a six inch
to cool the incoming air stream below its dew point. This cooled and round duct. This provides fresh air to dilute pollutants and maintain
drier air is used to pr
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TABLE OF CONTENTS Table of Contents Safety Precautions .......................................................................3 5.3H Damper Operation and Setting ...............................13 1. Intended Application ................................................................4 5.3I Intermittent/Programmed Ventilation ........................14 2. Specifications .........................................................................4 5.3J Programming Notes .........................
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SAFETY PRECAUTIONS 1. 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 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. • Install the unit with space to access the front panel for maintenance an
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FOR HVAC INSTALLER ONLY Place the UA-150H on supports that raise the base of the unit 1. Intended Application for Ultra-Aire 150H above the top of the flanges on the drain pan beneath it. Raising the For the ideal installation, draw air from the central part of the home UA-150H will help the unit drain with gravity flow. Do not place the and return it to isolated areas of the home like the bedrooms, den, UA-150H directly on structural building members without vibration utility room, or f
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FOR HVAC INSTALLER ONLY careful not to cross the wires when connecting the UA-150H and the 3.4B Ducting for Dehumidification remote control panel or damage to the transformer may result. For the ideal installation, draw air from the central part of the home and return it to the isolated areas of the home like the bedrooms, The remote controls of the UA-150H are powered by a low voltage den, utility room, or family room. The ductwork of the existing circuit (24 Vac) and must NEVER contact
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FOR HVAC INSTALLER ONLY 3.4C Ducting for Fresh Air 3.4D Installation in a Basement or Crawlspace Fresh air can be brought into the structure by connecting a insulated with an Existing Forced Air HVAC System duct from outside to the 6” UA-150H inlet and by turning on the If the existing system has multiple returns, select one to disconnect fan switch or activating the humidity control (on units with the from the existing forced air system and use it for the dedicated humidity control pane
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FOR HVAC INSTALLER ONLY 3.4E Installation in an Attic with an 3.5 Quiet Installation The compressor is attached to the cabinet with two cable ties to Existing Forced Air HVAC System secure it during shipment. This rigid attachment is not necessary ALWAYS install a catch pan with a drain or float interrupt for once the unit is installed and may cause noise from compressor condensate under the UA-150H in an attic or condensate may drip vibration. After installation, cut the cable ties to f
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FOR HVAC INSTALLER ONLY panel has a cover that must remain open to the air within the living 4.4 Fan/Filter Switch space for accurate humidity sensing. Position the fan switch on Turning ON the fan/filter switch will cause the when the home is occupied. The impeller fan blends fresh air with the UA-150H impeller fan to run continuously, the inside air. It also filters and circulates the blended air throughout whether the UA-150H is dehumidifying or not. the home. This function is desira
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FOR HVAC INSTALLER ONLY If the timer fails to operate or operates erratically, check that the Automatic or Manual Mode: The slide switch in the upper left of control panel receives 24Vac from the UA-150H. If 24Vac is present the timer is used to choose between automatic and manual operation at the control panel, reset the timer by pressing the reset button at of the timer relay. When the slide switch in the upper left of the timer the bottom center of the timer face. The reset button is the
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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. 10 Ultra-Aire 150H Installer’s & Owner’s Manual
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FOR HVAC INSTALLER ONLY 6. Align the back panel against these screws, pushing it forward, 5. (DEH 2000) DIGITAL CONTROL allowing it to slide downward to lock into position. Installation Instructions 7. M ake the electrical connections to the terminals on theback panel as shown in the wiring diagram. 8. Seal the hole around the wires to prevent air movement. Figure 5: 9. Reconnect the quick connector onto the back panel. 10. Reassemble the front to the back panel. Connect at the top
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FOR HVAC INSTALLER AND HOMEOWNER • The word “CLOCK” appears at the top of the display during the clock display, along with the day and time. • The word “HUMIDITY” appears during the humidity display, with the current Set point on the left, and the ambient RH on the right. • T he word “TEMP” appears as the unit displays the current temperature. • The fan status display is indicated by a capitol “F”. “OF” indicates fan off status, “on” indicates fan on status. • The damper display is i
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FOR HVAC INSTALLER ONLY AND HOMEOWNER “on” mode, the fan will run continuously. This does not effect the 5.3E Setting Relative Humidity Set point dehumidification functions of the system. The system may or may The relative humidity Set point operates the dehumidifier function of not be ventilating or dehumidifying while the fan is running. Common the Ultra-Aire. It has no effect on any other function of the unit. The reasons for operating the fan continuously are continuous filtration con
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FOR HVAC INSTALLER ONLY AND HOMEOWNER 6.3I Intermittent or Programmed Ventilation 9. Pressing the “PROG” button again to move onto “program 2/stop” With the damper in program mode (denoted by “Pr” when setting the and begin the process again if setting the other programs. Follow damper operation) the system will operate the ventilation function the same procedure for each program. according to the current ventilation program. 10. To end the program process simply leave the control alone (d
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FOR HVAC INSTALLER ONLY 6. Maintenance 7. Service 6.1 Standard Air Filter 7.1 Warranty The UA-150H is equipped with a pleated cloth air filter. This filter A warranty certificate has been enclosed with this unit; read it should be checked every three months. Operating the unit with before any repair is initiated. If a warranty repair is required, call the a dirty filter will reduce dehumidifier capacity and efficiency and factory first at 1-800-533-7533 for warranty claim authorization and
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FOR HVAC INSTALLER ONLY Evaporator coil frosted continuously, low dehumidifying 7.3 Troubleshooting capacity. No dehumidification, neither impeller fan nor compressor run 1. Defrost thermostat loose or defective (Sec. 5.8). with fan switch and ventilation timer OFF. 2. Low refrigerant charge 1. Unit unplugged or no power to outlet. 3. Dirty air filter(s) or airflow restricted. 2. Humidity control set too high or defective 4. Excessively restrictive ducting connected to unit. (Sec.
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FOR HVAC INSTALLER ONLY 5. C ompressor terminals C and R: No continuity indicates an open 7.4 Refrigerant Charging run winding. The compressor must be replaced. Normal run If the refrigerant charge is lost due to service or a leak, a new charge winding resistance is .5 to 2 ohms. must be accurately weighed in. If any of the old charge is left in the 6. Compressor terminal C and overload terminal 1: No continuity system, it must be recovered before weighing in the new charge. indicates a
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FOR HVAC INSTALLER ONLY If sludge is evident in the discharge line, it will likely be found in the (see back of control panel cover). ). If it still does not run, remove the suction line. This indicates the compressor burned out will running. stop screw from the panel and turn the knob farther. If it then runs, Sludge and acid have been pumped throughout the system. Several the humidity control is out of calibration or the RH is below 40%. changes of the liquid and suction filter/driers will
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FOR HVAC INSTALLER ONLY If the electric ventilation damper fails to operate: 7.11 Condensate Pump Kit 1. Check that the wiring is correct and that voltage is present at An optional condensate pump kit is available from the factory for use the damper motor. with the UA-150H. Condensate is automatically pumped to a remote 2. C heck for any obstruction inside the damper. If the electric location when the water level in the pump's reservoir rises to close ventilation damper fails to operate
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FOR HVAC INSTALLER ONLY Pictorial Electrical Diagrams of UA-150H 20 Ultra-Aire 150H Installer’s & Owner’s Manual
