KitchenAid KUID508HPS Installation Instructions - Page 4

Water Supply Requirements Check that the water supply lines are insulated against freezing conditions. Ice formations in the supply lines can increase water pressure and damage your ice maker or home. Damage from frozen supply lines is not covered by the warranty. A cold water supply with water pressure of between 30 and 120 psi (207 and 827 kPa) is required to operate the ice maker. If you have questions about your water pressure, call a licensed, qualified plumber. Reverse Osmosis Water Supply IMPORTANT: ■■ Connect to potable water only. ■■ The ideal installation has a standpipe with a 1¹⁄2" (3.81 cm) to 2" (5.08 cm) PVC drain reducer installed directly below the outlet of the drain tube as shown. You must maintain a 1" (2.54 cm) air gap between the drain hose and the standpipe. ■■ Do not connect the outlet end of the drain tube to a closed pipe system to keep drain water from backing up into the ice maker. IMPORTANT: A drain pump is necessary when a floor drain is not available. A Drain Pump kit, Part Number 1901A, is available for purchase. Side View Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system. Systems certified for cyst reduction may be used on disinfected waters that may contain filterable cysts. ■■ The pressure of the water supply coming out of a reverse osmosis system going to the water inlet valve of the ice maker needs to be between 30 and 120 psi (207 and 827 kPa). If a reverse osmosis water filtration system is connected to your cold water supply, the water pressure to the reverse osmosis system needs to be a minimum of 40 to 60 psi (276 to 414 kPa). NOTE: The reverse osmosis system must provide 1 gal. (3.8 L) of water per hour to the ice maker for proper ice maker operation. If a reverse osmosis system is desired, only a whole-house capacity reverse osmosis system, capable of maintaining the steady water supply required by the ice maker, is recommended. Faucet capacity reverse osmosis systems are not able to maintain the steady water supply required by the ice maker. If the water pressure to the reverse osmosis system is less than 40 to 60 psi (276 to 414 kPa): ■■ Check to see whether the sediment filter in the reverse osmosis system is blocked. Replace the filter if necessary. ■■ Allow the storage tank on the reverse osmosis system to refill after heavy usage. If you have questions about your water pressure, call a licensed, qualified plumber. Drain Connection Requirements Gravity Drain System Connect the ice maker drain to your drain in accordance with all state and local codes and ordinances. If the ice maker is provided with a gravity drain system, follow these guidelines when installing drain lines. This will help keep water from flowing back into the ice maker storage bin and potentially flowing onto the floor, causing water damage. ■■ Drain lines must have a minimum of 5/8" (15.88 mm) I.D. (inside diameter). ■■ Drain lines must have a 1" drop per 48" (2.54 cm drop per 122 cm) of run or 1/4" drop per 12" (6.35 mm per 30.48 cm) of run and must not have low points where water can settle. ■■ The floor drains must be large enough to accommodate drainage from all drains. 17/8" (4.8 cm) 23" (58.4 cm) A B 1" (2.54 cm) C D A. Drain hose D. Center of drain should be 23" (58.4 cm) from B. 1" (2.54 cm) air gap C. PVC drain reducer 2"-11/2" (5 cm - 3.8 cm) front of door, with or without the 3/4" (1.91 cm) panel on the door. The drain should also be centered from left to right (75/16" [18.56 cm] from either side of the ice maker). Drain Pump System (on some models) IMPORTANT: ■■ Connect the ice maker drain to your drain in accordance with the International Plumbing Code and any local codes and ordinances. ■■ The drain pump discharge line must terminate at an open-site drain. ■■ Maximum rise 10 ft (3.1 m) ■■ Maximum run 100 ft (30.5 m) NOTES: ■■ If the drain hose becomes twisted and water cannot drain, your ice maker will not work. ■■ It may be desirable to insulate the drain line thoroughly up to the drain inlet. An Insulation Sleeve kit, Part Number W10365792, is available for purchase. ■■ Do not connect the outlet end of the drain tube to a closed pipe system to keep drain water from backing up into the ice maker. ■■ Drain pump maximum capability: For every 1 ft (0.31 m) of rise, subtract 10 ft (3.1 m) of maximum allowable run. 4