The introduction of refrigerators with automatic ice makers occurred around the late 1950s and early 1960s. After the introduction of this convenient feature, refrigerators continued to be manufactured without ice makers, so a water line for a refrigerator was not a standard feature in new home construction, leaving home owners without a way to supply water to an ice making fridge. Universal ice maker installation kits can solve this dilemma and provide you with almost everything you need to supply water to your ice maker.
Remove everything from beneath your kitchen sink. Remove everything from inside each base cabinet between your sink cabinet and the refrigerator.
Measure a distance of 8 to 10 inches down from the top of your base cabinets. Mark this distance along the dividing walls inside each cabinet and as close to the back wall as possible.
Attach a 1/2-inch drill bit to your power drill. Drill a hole at each marked location inside each cabinet. This allows you to thread the water supply line from beneath the sink, through each base cabinet and out to your ice making fridge.
Turn the cold water supply valve clockwise underneath the kitchen sink to close it and turn off the water supply. Try turning on the cold water at your kitchen sink to make sure you have turned off the correct valve.
Unscrew the two screws from the self-tapping saddle valve, provided with the kit, just enough to release the bottom strap from the valve. Position the top strap of the saddle valve against the copper supply line above the supply valve and against the copper tubing running from the supply valve to the faucet supply line.
Position the bottom strap you previously removed from the saddle valve on the opposite side of the copper tubing. Line up the two screws attached to the top strap with the holes in the bottom strap. Turn the screws clockwise to connect the bottom strap to the saddle valve. Continue to turn the screws until the strap sits snugly on the tubing. Do not over-tighten the strap and damage the tubing.
Twist the small handle located on the top of the self-tapping saddle valve clockwise to pierce the copper tubing. Twist the handle counterclockwise once you pierce the tubing.
Thread the polyethylene tubing, provided with the kit, from beneath the kitchen sink, through the holes you drilled between the cabinets, and to the refrigerator. Secure the tubing to the back wall of the cabinets with 1/4-inch nylon cable clamps and self-anchoring screws about every 12 inches.
Insert the end of the tubing into the fitting on the side of the self-tapping saddle valve. Turn the fitting clockwise with an adjustable box-end wrench until the tubing is secured in the fitting.
Slide the fitting that came with your refrigerator onto the tubing, or use one of the fittings supplied with the ice maker installation kit that fits the connector on the back of your fridge. Tighten the fitting onto the connector with your wrench.
Turn on the cold water supply valve underneath the sink. Check for leaks at the saddle valve and the back of the refrigerator. If you see a leak, turn off the supply valve, remove the leaky line from either the refrigerator or saddle valve and reinstall.
Plug in your refrigerator and push it against the wall.