Hayward Perflex® Extended-Cycle Owners Manual - Page 4

The Hayward-Perflex is a high performance swimming pool filter with a filtration rating of 3,000 gallons (11 KL) per hour. Manufactured from durable, corrosion-proof materials, it is designed for continuous operation, for installation above or below, the pool water line. It may be used on fresh or salt water swimming pools. The Perflex filter uses diatomite filter powder (commonly called D.E.). D.E. is the most efficient dirt remover known. It is normally fed into the system through the skimmer when the filter is initially started; then drained from the filter when it can no longer efficiently remove dirt from the water. Through the Perflex's exclusive "BUMP" action, the D.E. is periodically regenerated and the filter cycle extended without changing the powder. When the filter powder is totally used, the "BUMP" action makes it possible to drain the used diatomite without backwashing or dismantling the filter. The EC-50AC is equipped with a special, polished stainless steel clamp, designed for easy access to the internals of the filter. PUMP SELECTION To power your Perflex filter, select a continuous duty pump designed for swimming pool service. The filter may be used with a variety of Hayward bases and plumbing connections, or may be mounted on other suitable surfaces. It is important to determine whether the pump will be located above or below the normal pool water line. If the pump is going above the water line, a self-priming centrifugal pump must be used. Self-priming pumps can lift water from a lower level and prime automatically. There is another type of pump simply called the centrifugal. Unlike selfpriming centrifugals which can lift water from a lower level, a centrifugal must be located below the water line for dependable priming. Select a pump with an output rating of between 30 and 65 GPM (114-246 LPM). Since 50 GPM (189 LPM) is the desired maximum filter flow, a flow controller (part number ECX1055) is furnished with each unit for use with pumps rated between 40 and 65 GPM (150-246 LPM). Install the flow controller in the filter body as illustrated with an elbow adapter, union connector, or adapter. The adapter both secures the controller in its proper position, and completes the hydraulic balance of the system. PLUMBING & INSTALLATION 1. To facilitate servicing of the filter system and to allow for indoor storage during the winter months, installing union connections at the suction and outlet ports is recommended. 2. Use 1-1/4" or 1-1/2" I.D. flexible plastic pipe, or hose, joined with insert fittings and stainless steel clamps. 3. All plumbing connections on the system are 1-1/2" FILTER LOCATION 1. Though the filter is designed for outdoor use, it is advisable to protect electrical components from the weather. Select a well-drained area, one that will not flood when it rains. Locate the filter as close to the pool as practical, keeping the number of fittings to a minimum. 2. Set the filter on a level mounting platform or base. Keep the filter bump handle, drain outlet, and pressure gauge accessible for convenient operation. 3. Position the system so that the filter tank can drain by gravity. N.P.T. When making connections, use plastic male-end adapters. Apply three turns of Teflon tape or plastic pipe sealant compatible with ABS to the male threads. Screw the fitting into the thread hand tight; then, using a wrench, tighten one more full turn. Additional tightening is unnecessary-and-could result in damage to components. 4. Refer to the diagrams for suggested valving. Ball-type valves are recommended where needed. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Page 4 of 12 PERFLEX™ Filtration Series IS50C REV C