Wine Cellar Cooling and Refrigeration Units – Installation Digital Controllers Wiring (A Processed Video Transcription)
Hello. My name is Dan Philips, owner and technical adviser for US Cellar Systems. Today we are going to be covering the installation of our DC Controller for wine cellar refrigeration units.
When you order a controller, items you’ll receive are the controller, the mounting clips and the temperature sensors. Then if you want them, we have the option of a DCP mounting plate, which will allow you to mount it into a standard 20 or 23 cubic inch electrical box.
We also offer an optional 25′ wiring harness for your wine cellar cooling unit. When installing the controller, you place it through the plate and then push your mounting clips onto the back of it. That mounts the controller to your digital controller mounting plate.
Then bring your wires in through the back of your electrical box wherever you have it mounted. Be sure you follow code when you do this because this is a high voltage system and you’re wiring will most likely have to be run in conduit.
You’ll also want to bring your temperature sensor in through the back of it and be sure it does not come in at the same place as the high voltage electrical wiring because the magnetic field of the high voltage wiring can distort your readings on the low voltage wiring. So when you’re making your connections at the back of the controller with the standard wiring harness, you’re going to have two black wires, a white wire, and a red wire.
You’re going to need a small screwdriver in order to work the screws on the back of the controller. Your first black wire will go into the connection at number five on the back of the digital controller.
Your second black wire goes into number two on the back of the controller. Your white wire goes into number four and the red wire will go in to number three.
Once those connections are made and tightened down, your wire for your temperature sensor will go in to number ten and number eleven. The best location to put the sensor itself is as close to the return air as possible of your wine cellar cooling evaporator coil.
If the 5′ lead that it comes with is not long enough, you can extend this up to 50′ with 18 gauge thermostat wire. Once all of your connections are made and the digital controller is slid into the box and the screws tightened down, that finishes the installation of the digital controller itself for wine cellar refrigeration units. After that, we’ll be ready to go on to the wiring of the evaporator coil. Thank you.