one-minute time increments of the ventilation timer allow you to program the ventilation of your home to fit your schedule.

The ventilation timer allows six programs with each program having one "on" and one "off" event. A program allows the user to turn the ventilation on at a certain day and time, then it allows them to turn the ventilation off at a certain day and time. Each of these programs can be repeated daily or week- ly or during a specified block of days. All six of the programs operate independently of each other. If the timer fails to oper- ate or operates erratically, check that the control panel receives 24Vac from the UA-135H. If 24Vac is present at the control panel, reset the timer by pressing the reset button at the bottom center 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. Depress the reset button until the dis- play clears. Release the reset button. The display will reap- pear as 00:00. Resetting the timer will clear the time and all program settings. After resetting the timer follow the instruc- tions below to set the correct time and ventilation programs.

4.5 Setting the Time

First, set the correct time on the timer by sliding the switch in the upper right hand corner of the timer to the clock symbol. and pressing the 1...7 (DAY), h (HOUR), and m (MINUTE) buttons. Remember this timer operates on a 24-hour (military time) clock.

4.6 Ventilation Schedule

Slide the switch in the upper right hand corner to the program symbol P. "ON" will appear to the right of the time and the number "1" will appear in the lower right hand corner of the display. The "1" and "ON" signify the turn on time for the first program. Press the 1...7, h and m button to choose the days of the week for this program. You can choose Mon.-Sun, Mon.-Fri., Sat-Sun, or any single day of the week. The days chosen are shown along the top of the display on the ventila- tion timer. Next press the h button to set the hour for the start of the ventilation period. Remember this timer operates on a 24-hour clock (military time). Then press the m button to set the minutes past the hour to start the ventilation. Now, with the ventilation start time set; press the I/O button. The word "OFF" should appear to the right of the time and the number "1" should remain in the lower right hand corner of the display. The "1" and "OFF" signify the turn off time for the first program. Set the turn off time using the 1...7, h and m buttons in the same way as described above and continue on to the second through sixth programs. When setting the ventilation programs, you can return to the current time display by sliding the switch in the upper right corner of the timer to RUN. The slide switch must be set to RUN for the timer to operate its scheduled programs.

4.7 Automatic or Manual Mode

The slide switch in the upper left of the timer is used to choose between automatic and manual operation. When the slide switch is set to AUTO mode, the UA-135H will ventilate

when the scheduled programs call for ventilation. When the slide switch is set to manual (set to hand symbol on the right), the operation of the timer is controlled by the I/O button only. Pressing the I/O button will switch the ventilation timer between ON (detent) and OFF (detent). As you press the I/O button, "ON" or "OFF" will be displayed to the right of the time. The "ON" or "OFF" indicates if the ventilation timer is on or off. The I/O button will manually override scheduled pro- grams if the timer is in AUTO mode.

4.8 Low Pressure Control

If the low side refrigerant pressure drops to 15 PSIG, the low-pressure control opens and shuts off the compressor and impeller fan. It is automatically reset when the pressure rises to 35 PSIG. Its primary function is to prevent damage to the compressor. It may also open if the unit is A) installed in a cool area (below 50°F) or B) installed where it is below 40°F and then started. Under these conditions, the unit will restart within several minutes. Until the unit warms up, it may repeat the cycle several times.

5 (DEH 2000) Digital Control

DEH 2000 Digital Ventilation Timer/Humidity/Fan Control Installation & Operation Instructions

5.1 Specifications

Model:

4024539

Electrical:

24 VAC

Humidity Range:

20 – 90% RH

Humidity Accuracy:

+/- 4%

Output:

3 Amps 24 VAC

5.2 Operation

5.2A Display

When there is power to the control, the control display sequence will alternately show the clock, humidity, temperature, fan status, and fresh air damper status.

The display sequence repeats continually, and is referred to as “home state”.

Figure 1: DEH 2000 Digital Display

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Ultra-Aire 135H Air Purifying Dehumidifier Owners Manual

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Therma-Stor Products Group 135H owner manual DEH 2000 Digital Control
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135H specifications

Therma-Stor Products Group has introduced the innovative 135H, a high-performance dehumidifier designed to meet the needs of various applications, including residential and commercial spaces. The 135H stands out for its advanced technology and several features that improve efficiency and user-friendliness.

One of the key features of the 135H is its energy-efficient design. Utilizing a robust refrigerant system, this model ensures optimal moisture removal while maintaining low energy consumption, resulting in significant cost savings for users. The 135H is engineered to operate effectively in various humidity conditions, making it suitable for use in basements, crawl spaces, and other high-humidity environments.

The unit boasts a high-capacity water removal capability, making it one of the most effective dehumidifiers in its class. With a maximum extraction rate of up to 135 pints per day, it can tackle even the most humid situations, helping prevent mold growth, protect valuable electronics, and preserve structural integrity in homes and businesses.

In terms of user interface, the 135H features an intuitive digital control panel, allowing users to easily set their desired humidity levels. The integrated hygrometer keeps track of the current humidity, providing real-time feedback and enabling effortless adjustments. Additionally, the unit is equipped with a continuous drainage option, allowing for hassle-free operation without the need to frequently empty the water reservoir.

Durability is another hallmark of the 135H, as it is constructed from high-quality materials designed to withstand demanding environments. Its compact design allows for easy installation and portability, making it user-friendly for both residential and commercial applications.

Further enhancing the user experience, the 135H is designed with noise reduction technologies, ensuring quiet operation while maintaining high-performance levels. This feature makes it an ideal choice for living spaces, offices, or environments where minimal disruption is essential.

In conclusion, the Therma-Stor Products Group 135H dehumidifier represents a perfect blend of efficiency, technology, and user-centric design. Its powerful moisture removal capabilities, combined with energy efficiency and smart features, make it an excellent investment for anyone looking to maintain optimal humidity levels and improve indoor air quality. This model highlights Therma-Stor's commitment to providing high-quality solutions for environmental control, addressing the diverse needs of modern users.
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