- Plug the wires into the labelled ports on the bottom of the CoolBot. The Heater wire is the one with the RED tip. The 2 sensor wires are interchangeable. The one plugged into the Fins port becomes the Fin Sensor. The one plugged into the Room port becomes the Room Sensor. Plug them in and out a couple times. Sometimes they don't “seat” all the way in the first time.
- A/C and CoolBot Positioning: Since cold sinks, install the A/C unit high up in your cooler (bottom of the A/C >5 feet/1.5 meters). If you have a rectangular room, it's important the A/C blows the long way (i.e. installed on the shorter wall). Follow your A/C unit installation instructions. The A/C unit should be tilted slightly, about 1" lower in the back (exterior) than in the front (interior). Some bigger A/C units have shipping screws so the air conditioner can't slide out of its metal cabinet. Removing them before installation makes annual cleanings easier. Hang the CoolBot on the control panel side of the A/C with the bottom in-line with the bottom of the A/C to make it easier to connect the wires to the A/C.
- Remove the Air-Filters from the front fins of the A/C unit. The filters drastically reduce cooling power, so take them off. Instead, clean your fins 1-3 times a month, or when they get dirty (see Troubleshooting). We recommend removing the plastic grill as well if you can.
Note: Some A/C units have a postage-stamp size “fresh air vent” located where air blows out. If applicable, ensure it's closed.
- Find and Free your A/C’s Temperature Sensor. It’s the only thing attached to the front fins/grill of your air conditioner. Remove both clip and sensor from the fins. Discard the clip.
Note: A small number of A/C units use a metal temperature sensor and have no digital display. In that case CoolBot cannot function. Buy another A/C unit.
- Connect the red-tipped CoolBot HEATER to the Air Conditioner’s Temperature Sensor. Use the short (2 inch square) piece of foil to keep both together snuggly, lying right next to each other like 2 fingers pointing the same direction within the foil [see image]. Make sure they dangle away from the fins & flow of the air and hang free, not touching anything cold or metal. (You can put a wire tie around the 2 wires (1 inch before the foil) to keep the wires from getting pulled apart.)
- Insert CoolBot FIN Sensor. Take the wire coming from the port labelled “FINS” and stick just 0.3 inches (0.7 cm) of the TIP of that sensor into the front metal fins of the air conditioner, about 1” from the bottom and near the center (horizontally). It must not touch a coolant pipe directly. You want to be between the bottom 2 horizontal cooling pipes. You must use a screwdriver / pen / pencil to open the fins up first. If you just force the sensor in, you'll damage it. Pinch the fins lightly around the sensor so it doesn't fall out.
- Plug in the CoolBot. Set your goal temperature. Default is 42⁰F (5.5⁰C).
- Turn your A/C unit on. Set the temp on your A/C unit as low as it can go. (60-65⁰F) and make sure your A/C unit is set at the highest fan speed and in “COOL” mode.
- If your A/C Has a Secondary Sensor, Remove It. This only applies to some A/C brands, including most GE, Kenmore, Frigidaire Comfortaire, Danby and all “mini-split-type” air conditioners. These units have a hidden second sensor you need to remove and let “hang free.”
- Unplug your air conditioner. Look for one heavy electronic wire often on the same side of the A/C as the control panel. It will plug into a little cup soldered onto one of the coolant tubes. Either grab it with your fingers to unplug it or use a tool that is not sharp. Don't cut the sensor! It is OK to cut the plastic tie downs to free the sensor. For rooms above 36⁰F, just let that sensor hang free outside the body of the A/C unit so it doesn't touch anything metal. Below 36⁰F, use just 1-2 layers of electrical tape to attach the end of the secondary sensor to the OUTSIDE of the aluminum foil combination (from #5). Check out our website for videos on removing secondary sensors.
That's it - plug it in and give it a few hours to cool down!