ALLSTAR DILUTION CONTROL SYSTEM MODEL 639AG-4-1ABC

Transcription

1 MODEL 639AG-4-1ABC 1. PARTS: A. Blend Center assembly B. 5 pc. 1/4 ID x 8 ft. long vinyl supply tubing, with foot valve & ceramic weight C. 1 pc. 1/2 ID x 6 ft. long vinyl outlet tubing D. 2 pc. #8 pan head 1-1/2 long mounting screws and anchors E. Product labels F. Metering tip kit G. 1 pc. 1/2 ID x 12 long vinyl outlet tubing H. 1 pc. dual hose shut-off I. 16 pcs. Tyraps J. 1 pc. 6 long rubber hose K. 1 pc. blend center mounting bracket kit with wing nuts, screws, washers (2 ea.) 2. INSTALLATION: Note: All installations must conform with all applicable plumbing codes and use approved backflow preventers. A) Mounting & Water Supply 1) Wall Mounting: Remove the four cover retainer screws and the cover from the blend center assembly. Mount the unit in position on the wall and locate the position for the mounting screws. Using the screws and anchors provided, mount the unit to the wall and replace the cover and screws. 2) Bracket Mounting: Attach the unit to the bracket with the two 1/2 long screws provided. The bracket attaches to any horizontal surface using the screws, wing nuts and washers provided. The water inlet is equipped with a female garden hose fitting (with strainer washer) for attaching the dual shut-off and water supply hose provided. The unit is designed so water can be supplied to either side by interchanging the pipe plug and the female hose fitting. B) Chemical Supply: Place the chemical containers in a convenient location not more than 6 feet below the blend center (greater lifts will reduce injection capacities). Insert the ends with the inline valves of the 8 foot 1/4 ID vinyl tubing onto the barb of the chemical containers. Cut the vinyl tubing to any convenient length that will allow them to extend from the bottom of the chemical container to the proportioner inlet barbs (See figure 1 or 3). Gummed labels are provided for labeling chemical s dial position and the corresponding chemical supply tubing. C) Outlet: 4 GPM proportioner only: Do not cut 1/2 tubing to less than 18 to insure priming. D) Chemical Injection Adjustment: WARNING: USE CARE WHEN HANDLING HAZARDOUS CHEMICALS. Chemical feed rates are controlled by metering tips screwed into the proportioner barbs. Select a tip for each barb using page 2 as a guide. I-474 Pg. 1 of 5

2 MODEL 639AG-4-1ABC 3. OPERATION: The blend center is now ready for use. Depressing the right hand push button opens the 1 GPM, four product valve, allowing water to flow through the chemical proportioner that mixes any one of 4 different chemicals at the desired rate by rotating a selector knob. Each push button is spring loaded to prevent accidental overflow if unattended, but may be converted to locking buttons by cutting off the tab, at the notch (see Figure 2). Pushing the button and turning it a 1/4 turn clockwise at the end of its travel allows the valve to lock on. This makes it unnecessary for the attendant to hold the button in while filling large containers. Turning the button in a counterclockwise direction will reset it, allowing the valve to shut off. 4. SERVICING: CAUTION: TURN OFF WATER SUPPLY BEFORE SERVICING. A. Proportioner fails to draw chemical: Insufficient water pressure. 20 PSI is the minimum allowable. B. Proportioner stops drawing chemical: 1) Inspect foot valve for dried chemical or dirt. Soak in hot water to clean. 2) Proportioner metering tip clogged with dried chemical. Remove tip and try injecting in hot water. If there is no suction, remove proportioner and soak in hot water to clear interior passages. C. Proportioner continues to draw chemical after water valve closes: Chemical supply is higher than bottom of discharge tube creating a natural siphon. Lower the supply vessel or hang up outlet tube after use. D. Valve Malfunction: Check that the button moves freely up & down and that a "click" can be heard when the button is pushed and released, indicating that the magnet is activating the plunger properly. Remove cover. To inspect internal parts, unscrew magnet housing and carefully pull off the enclosing tube so as not to drop the plunger, kick-off spring, and spacer. Check for dirt or damage impeding plunger and kick-off spring movement. Inspect the diaphragm, making sure the two small pin holes (bleed holes) in the disphragm convolution are clear to allow the valve to close. CAUTION: When servicing unit be sure that replacement parts have been installed according to drawing. I-474 Pg. 2 of 5

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4 DEMA MODEL 639AG-4-1ABC PIPE PLUG & O-RING PUSH BUTTON ACTUATOR INLET HOSE ADAPTER STRAINER WASHER MOUNTING HOLES (4) 4 GPM AIRGAP PROPORTIONER 1 GPM AIRGAP PROPORTIONER SELECTOR ASSEMBLY METERING TIP SUPPLY TUBING (4) TO CHEMICAL VINYL DISCHARGE TUBING FIGURE 3 CHEMICAL CONTAINER CERAMIC WEIGHT FOOT VALVE I-474 Pg. 4 of 5

5 (SPECIFY COLOR) (SPECIFY COLOR) *SEE TABLE BELOW 4 GPM GPM /4" TUBE CERAMIC WEIGHT GPM ONLY " LONG GPM ONLY ' LONG 4 GPM ONLY P PART NO AG AG KICK-OFF SPRING ENCLOSING TUBE DESCRIPTION PIPE NIPPLE -3/8" X 1 1/2" PVC CERAMIC WEIGHT (1/4" TUBE) *4 GPM PROPORTIONER ASSY *1 GPM PROPORTIONER ASSY MAGNET SPRING "U" CUP COUPLING -3/8" BRASS NOZZLE (1 GPM) O-RING VINYL TUBE (3/16" ID X 7" LG) 1 GPM ONLY O-RING DIAPHRAGM SPACER PLUNGER VALVE BODY SCREW NOZZLE (4 GPM) VINYL TUBE (9/16 ID X 6' LG) VALVE REPAIR KIT INLET BARB (1/4" BARB) PART NO P K DESCRIPTION VINYL TUBE (9/16" ID X 4" LG) 1 GPM ONLY SELECTOR VALVE ASSEMBLY VALVE BODY SPRING KNOB SCREW WASHER NUT COVER PIPE NIPPLE - 3/8" BRASS MAGNET HOUSING (SPECIFY COLOR) PUSH BUTTON (SPECIFY COLOR) PIPE PLUG PIPE TO GARDEN HOSE ADAPTOR (3/8" MNPT) FOOT VALVE VINYL TUBE (1/4 ID X 8' LG.) TEE INLET SCREEN ACCESSORIES FRESH WATER OUTLET KIT METERING TIP KIT (14 SIZES) I-474 Pg. 5 of 5