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How do I regenerate the desiccant in my EDH-4, RCD-1, or RCD-2 dehydrators?
The EDH-4, RCD-1, and RCD-2 dehydrators do not have the means to automatically regenerate their drying agent. These units use a granular desiccant consisting of Amorphous Alumina silica gel coated with an orange iron compound indicator which turns a lighter and lighter shade as it becomes more saturated. Older EDH and RCD dehydrators used a granular desiccant blend consisting of white activated alumina and blue silica gel. The blue silica gel granules turn light pink when spent to indicate the need to renew the desiccant. For the EDH...
read moreTroubleshooting Manual for ADH-3COM and ADH-2A COM Automatic Air Dehydrators
This manual presents and explains troubleshooting procedures for ADH-2A COM and ADH-3COM Automatic Air Dehydrators. It begins with a schematic diagram of the internal components (the same diagram for both models), then presents text and photographs describing various troubleshooting procedures. ADH-2A COM And ADH-3COM Troubleshooting Manual
read moreStocking Orders for the Snow & Ice Season
Another snow and ice melting season is upon us. Environmental Technology has prepared its most significant stocking level increase that any of us here can remember. Even still, the last several weeks have already shown a great growth in snow and ice melting control and sensor sales. The best way to make sure you have the controls and sensors you need is to stock them. A good guide for stocking levels is to look at your busiest four to six weeks in the last couple of seasons. Keep that many on-hand, re-ordering units as they sell, from now...
read more2011 Highest Snowfall Totals by State
The WeatherARC blog posted a report showing the highest snowfall totals by state for 2011. Snowfall amounts are listed in feet from October 1, 2010 through the middle of March 2011. It will be interesting to see how the next couple of snow seasons compare. Check out the report on the WeatherArc blog. Laporte, IN&emdash;part of the Michiana area that Environmental Technology is located in&emdash;is reported as having 8.9 feet of snow in the 2011...
read moreCan I extend the wires and how far away can I locate the sensors?
Yes. The sensor wires can be extended up to 250 feet with #18 awg wire and 2000 feet with #12 awg wire.
read moreCan I use a GIT-1 sensor to replace the sensor on my GIT-4 controller?
In a word: No! The GIT-1 is meant for use with the newer APS-C series controllers, EUR-5A controller and the upcoming PRO series controllers. The GIT-4 sensor is unique to the GIT-4.
read moreBoth the heater and supply lights are flashing on the RCU-2 remote for my GIT-4, what does it mean?
There are two possibilities and it depends on how the lights are flashing. If the lights are flashing on and off equally, that is they are on for the same amount of time then this means that the GIT-4 is doing a GFEP self test and should return to normal when it is done. If the heater light is on for a longer period of time than the supply light then it indicates that there is a communication error between the sensor and the controller. A wiring issue, a missing sensor or extreme low temperature that will affect the sensor causes...
read moreCan I use a GIT-4 gutter deicing controller to control external contactors?
No, using an external contactor will cause the GIT-4 to indicate a ground fault and keep it from functioning.
read moreCan I use the GIT-3A controller to power heat cables directly?
Yes, as long as the total load does not exceed the maximum current rating of the internal relay contacts, which is 26 amps resistive.
read moreHow can I test the snow sensor attached to my GIT-4 or GIT-3A gutter deice controller?
The sensors require a temperature below 38F and moisture on the moisture grid. The GIT-4 has a protruding tube that contains the temperature sensor and the moisture grid is on the opposite end. A moist rag or paper towel and a freeze spray or ice can be used to test the sensor.
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