Dehumidifier Output: How Hot Is Too Hot?
Started by Lynn Harrell , July 7, 2021
5 (1)
CADPXS Brands Customer Service sometimes receives calls from customers concerned about the temperature of the outlet air from their CADPXS LGR PRO Commercial Dehumidifier. In some circumstances, the temperature may appear particularly warm and may attract the attention of an observant restoration technician.
What are the causes of higher temperatures in the dehumidifier's exhaust air? Is it allowed to be that warm? The answer is: it depends. A properly operating dehumidifier will normally raise the temperature of the air flowing through it by 10°-15°F. For example, if the ambient temperature in a drying area is 90°, an output temperature of 105° is perfectly normal. On the other hand, if the ambient temperature is 70° and the outgoing air measures 105°, this 35° increase is worth further investigation.
Here are the two main reasons why your dehumidifier's output might exceed the normal 10°-15°F temperature rise:
Restricted airflow, typically caused by a clogged air filter, can cause the output temperature to rise. Check and replace as needed. If necessary, clean the inside of the unit as described in the operating instructions.
The dehumidifier's defrost mode may temporarily increase the output temperature. The temperature will return to normal once the unit completes this cycle.
If neither situation applies and your device is still producing excessive heat, it may need service. Contact your authorized service center. Before calling, make a note of the environmental conditions under which the unit is operating. This information can help the service technician diagnose the situation.
Note that LGR refrigerant dehumidifiers do not operate efficiently at humidity levels below 20% RH. Normal refrigerant dehumidifiers stop removing moisture at 40% RH or below. Under these conditions, a refrigerant dehumidifier cannot do much more than add more heat to the environment and use unnecessary energy. If you need to achieve RH levels below this, consider using a desiccant dehumidifier. Desiccants can produce air with a relative humidity as low as 0% and can operate at temperatures below freezing.
United States
Normally, the liquefaction of water vapor in the air into water is an exothermic process, so it is understandable that heat is generated and discharged into the air. Of course, it is unacceptable to increase the indoor temperature excessively, but I believe a good brand will make a solution in this regard.
Published on 2021-07-08 11:46:06
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