WaterRequirements

The filtration system must be connected to a cold water supply line providing 40-l 00 psi water pressure. If psi is less than 40, a booster pump, (Part Number 4373525) will be needed.

Review the water application guideline chart

below to determine if your water meets the standards necessary to use this water filtration system.

	DO NOT use filtration system if water is								1
	microbiologically			unsafe or water quality
	is unknown. Pretreat water that exceeds
	limits for hardness, iron, manganese, and hydro-
I	gen	sulfide.
I	Failure to		follow	these instructions		could result
	in personal		injury.
Application GuidelineChart
		Water Supply			Parameters
	Water	Supply-		Potable	Chemical		Limit
	community or			(suitable for
	private	well		drinking)	hardness		< 350	mg/L
	Water	Pressure		40-l 00 psi	iron		< 0.1	mg/L
	Water	Temperature		40”.100°F	manganese		< 0.05	mg/L
	pH Range			4-11	hydrogen	sulfide	0
	pt;;nurn	TDS		2000 ppm	turbidity		<I NTU
				2000 ppm	turbidity		<I NTU

GeneralTips

*For best performance of system, drain tank completely once a week.

-To correct a leaky saddle valve, turn off cold water supply and make sure saddle clamp screws are tight- ened evenly and firmly. DO NOT overtighten, you could crush the pipe. Then make sure the nut below the saddle valve’s handle is tight. If not, tighten it with a ‘/” wrench.

l If the drain saddle leaks, it may not be tightly clamped. Tighten the bolts on both sides evenly and firmly.

l If the drain saddle elbow leaks, the connection may be loose. Remove the elbow, wrap Teflon tape around the threaded portion 2-4 times. Reinsert the elbow into the drain saddle opening and tighten. DO NOT overtighten.

*If the threaded portion of the brass compression nut tha is attached to the saddle valve leaks, turn off saddle valve and remove the nut, wrap Teflon tape around

the threaded portion 2-4 times. Reconnect the nut.

*If a leak should occur at a push-in connector, the cause is usually defective tubing. To correct the problem turn off water supply to the RO system either at the saddle valve or other existing water valve. Push in the grey push-in connector and hold; then pull the tubing out of the connector. Cut at least Vi” from the end of the tubins using a plastic tubing cutter or a sharp razor knife. Make sure the cut end is clean and blunt and that tubing is round. Reinsert tubing as far as it will go. Turn on water supply at valve.

l If a cartidge head leaks, it may have a misaligned, pinched or damaged O-ring. Shut off the saddle valve and tank valve. Open the faucet until dripping stops (5 minutes minimum). Turn filter cartridge % turn to the left and remove. Replace the O-ring if it is misaligned, pinched or damaged.

lIf the spout leaks when faucet is closed, it is either because of an obstructed or defective valve seat in the faucet or because the tee-bar under the handle is not adjusted correctly. To check for obstruction, turn and lift valve spout to remove. Slide faucet handle forward over spout hole. Unscrew tee-bar and slotted bushing from faucet valve. Remove faucet valve and check for obstruction. Replace valve, Part No. 4373522, if neces- sary. To adjust the tee-bar, complete steps to check ubstruction and then raise the tee-bar.

l If there is no steady drip from the open faucet when tank is drained, confirm that your cold water valve is fully open. Confirm that the water saddle valve needle pierced pipe and is fully open. Correct any leaks. Wait for any trapped air to leave system. If the system was connected to a refrigerator ice maker, the ice maker valve may have been opened before installation was completed. Turn the ice maker off and wait until faucet drips.

*There are four things to check if the air gap opening is leaking:

1.Blocked or improperly drilled drain line - clear drain line, remove drain saddle and check for hole.

2.Air lock in gap outlet-blow air into air gap using a short tube.

3.Excessive drain flow - disconnect red tubing from faucet air gap inlet tube. Check that drain flow is less than 175 ml (% cup) per minute. If not, replace red tubing with tubing of proper length available from your Whirlpool dealer.

4.Black drain tubing plugged - remove blockage in black drain tubing. Replace tubing if necessary.

*If you experience too little or no drain flow, the red tub- ing may be plugged or defective - replace red tubing with tubing of proper length available from your Whirlpool dealer. Confirm that the water saddle valve is fully open. Check for obstructions in the faucet air gap by removing the air gap and inspecting the flow path - replace faucet if necessary. The Sediment or GAC car- tridges may be clogged - replace if necessary.

l If you detect chlorine or unpleasant tastes or odors at startup, there may still be some sanitizing agent in the tank. Drain and fill tank two to three times.

*If you hear gurgling or dribbling sounds in the drain, check that 3/g”black drain tubing from faucet slopes downward to drain saddle. Angle drain piping so drain water runs down side of pipe. Or, change location

of drain saddle to horizontal drain pipe or alternate vertical drain pipe farther from trap. Important: Make sure drain saddle is installed before (above) trap.

If a garbage disposal is present, the water may be dripping off the edge of the baffle. Rotate the vertical drain pipe above the baffle so the filtration system drain hole enters the pipe on the opposite side.

l If the water has a bad taste after filter cartridges are changed, the storage tank needs to be sanitized. Order Tank Sanitizing Kit Part No. 4373527 and follow “How to sanitize RO system” instructions.

HowyourROwaterfiltration systeinworks

Your RO water filtration system uses reverse osmosis to help purify your water. When you use the system, water is first filtered through a 5-micron filter to remove particles 10 times smaller than your eye can see.

The water moves to the next cartridge and is forced through granular activated carbon to remove chlorine and taste-or-odor-causing compounds. The third

cartridge filters water through a reverse osmosis membrane to reduce metals, salts and large organic molecules when the faucet is turned on. Then the water flows into the storage tank where it is ready to use. The last (fourth) cartridge filters water from the tank again through an activated carbon filter to remove any small organic molecules and tastes that may still remain

in the water.

RO system production rate is 10.3 gallons per day at 50 PSI, 77°F and 715 mg/L NaCI.

Use this system only with water that has nitrate levels limited to influent concentration of 30 mg/L or less. Use the nitrate test kit provided with system to test nitrate level of your water.