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Summary of Contents for Pentair FNS PLUS
- Page 1 PLUS ® VERTICAL GRID D.E. FILTER INSTALLATION AND USER’S GUIDE IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS...
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Page 2: Table Of Contents
CUSTOMER SERVICE / TECHNICAL SUPPORT If you have questions about ordering Pentair replacement parts, and pool products, please contact: Customer Service and Technical Support, USA Sanford, North Carolina (8 A.M. to 4:30 P.M. ET) (8 A.M. to 4:30 P.M. — Eastern/Pacific Times) -
Page 3: Important Safety Instructions
Pressurized This guide provides installation and operation instructions for air can cause the lid to separate which can result in this product. Consult Pentair with any questions regarding this severe injury, death, or property damage. equipment. - Page 4 Observe filter pressure gauge and be sure it is not IMPORTANT: Keep all warning labels in good condition. If any warnings higher than the pre-service condition. labels are damaged, missing, or become illegible call Pentair Customer Service at 1-800-831-7133 and request replacement labeling. For Installation of Electrical Controls at...
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Page 5: General Information
GENERAL INFORMATION THIS SYSTEM OPERATES UNDER HIGH PRESSURE. When any part of the circulating system (e.g., Lock Ring, Pump, Filter, Valves, etc.) is serviced, air can enter the system and become pressurized. Pressurized air can cause the lid to separate which can result in serious injury, death, or property damage. To avoid this potential hazard, follow the instructions below. -
Page 6: Installation
INSTALLATION General Installation Information 1. Your FNS Plus Vertical Grid D.E. Filter requires one of the following accessories which must be purchased ® separately.: a. Push-Pull valve b. Multiport valve c. Bulkhead union set 2. Make all plumbing connections in accordance with local plumbing and building codes. Filter plumbing connections are provided with an O-ring seal. -
Page 7: Filter Clamp Installation
Filter Clamp Installation Follow these instructions exactly to prevent the lid from Figure 2 separating during system startup or operation. Sm. Washer 1. Turn off the pump and any automatic controls. Lrg. Washer 2. Open the High Flow™ Manual Air Relief Valve and Clamp turn counterclockwise until it snaps into the full open position. -
Page 8: System Start Up And Operation
SYSTEM START UP AND OPERATION THIS FILTER OPERATES UNDER HIGH PRESSURE. Never subject this filter to pressure in excess of the maximum pressure - even when conducting hydrostatic pressure tests. Pressures above the maximum psi pressure can cause the lid to separate, which can result in severe injury, death or property damage. -
Page 9: System Startup Instructions
System Startup Instructions 1. Open the High Flow™ Manual Air Relief Valve until it snaps into the full open position (this only requires a quarter turn counter clockwise). Opening this valve rapidly releases air trapped in the filter. 2. Stand clear of the filter tank, then start the pump. 3. -
Page 10: Maintenance
MAINTENANCE Manually Cleaning the Filter 1. Turn the pump off, shut off any automatic controls to ensure that the system is not inadvertently started during servicing. 2. Automatic skimmer should have trimmer valve set to 100% skimmer. This will close off the main drain line. If there is a separate skimmer line and main drain line plumbed to the pump, close the main drain valve. -
Page 11: Cleaning The Filter Elements
Cleaning the Filter Using a System with a Separation Tank (cont.) Remove bag and dispose of diatomite in trash can. Replace clean bag and set bag in seat (curved portion of Separation Tank). Put plastic hold-down in place to prevent earth from going back into pool, one double bag is furnished with Separation Tank. -
Page 12: Cleaning The Manual Air Relief Valve
Cleaning the Filter Elements (cont.) 4. Reassemble: a. Starting with the "SMALL GRID" element, place the element on the bottom spreader in the position marked "SMALL GRID" using the "foot print" pattern as a guide for proper location. b. Continue positioning the remaining elements onto the spreader in the same manner as the small element. c. -
Page 13: Troubleshooting
TROUBLESHOOTING A. AIR ENTERING YOUR FILTER IS DANGEROUS. 1. Air entering your FNS Plus Vertical Grid D.E. Filter can cause the filter lid and filter base to separate. Correct any ® conditions in your filtration system that allow air to enter the system. Some common ways to identify air entering the system are listed below. -
Page 14: Technical Data
TECHNICAL DATA Replacements Parts Item Part Description 53003201 Gauge, pressure 98209800 High Flow Manual Air Relief Valve (HFMARV) 98201200 Hose and retainer clips for HFMARV (Optional accy.) 58001100 Nut, knurled brass 59000800 Tie Rod, 24 sq. ft. filter 59001500 Tie Rod, 36 sq. ft. filter 59002100 Tie Rod, 48 sq. -
Page 15: Performance Curve
Performance Curve Flow Rates Plus Vertical Grid D.E. Filters ® This flow rate is based on 2.5 GPM sq. ft. of filter area sq. ft. Height 6 hour 8 hour 37" 3,600 21,600 28,800 43" 5,400 32,400 43,200 49" 7,200 43,200 57,600 55"... - Page 16 WWW.PENTAIR.COM All indicated Pentair trademarks and logos are property of Pentair Inc. or its global affiliates in the U.S.A and/or other countries. Third party registered and unregistered trademarks and logos are the property of their respective owners. Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice.
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