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Installation, Operation and Maintenance
Model 115/6115
Pressure Reducing Valve
Sizes: 11/4" to 24"
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information
can result in death, serious personal injury, property
damage, or damage to the equipment.
Keep this Manual for future reference.
Local building or plumbing codes may require modifica-
tions to the information provided. You are required to
consult the local building and plumbing codes prior to
installation. If the information provided here is not consis-
tent with local building or plumbing codes, the local codes
should be followed. This product must be installed by a
licensed contractor in accordance with local codes and
ordinances.
Need for Periodic Inspection/Maintenance: This product
must be tested periodically in compliance with local codes,
but at least once per year or more as service conditions
warrant. All products must be retested once maintenance
has been performed. Corrosive water conditions and/or
unauthorized adjustments or repair could render the product
ineffective for the service intended. Regular checking and
cleaning of the product's internal and external components
helps assure maximum life and proper product function.
For Australia and New Zealand: Pipeline strainers should be
installed between the upstream shutoff valve and the inlet of
the backflow preventer.
It's important that this device be tested periodically in compli-
ance with local codes, but at least once per year or more as
service conditions warrant. If installed on a fire sprinkler system,
all mechanical checks, such as alarm checks and backflow
preventers, should be flow tested and inspected internally in
accordance with NFPA 13 and NFPA 25.
LFM115
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Setting the Pressure Reducing Control . . . . . . . . . . . . . . . . . . . . . . 3
Maintenance Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Trouble Shooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Valve Disassembley Instructions . . . . . . . . . . . . . . . . . . . . . . . 7
ACV Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
IOM-ACV-115_6115
Page
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Table of Contents
Related Manuals for Watts LFM115
Summary of Contents for Watts LFM115
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Page 1: Table Of Contents
You are required to consult the local building and plumbing codes prior to installation. If the information provided here is not consis- LFM115 tent with local building or plumbing codes, the local codes should be followed. This product must be installed by a licensed contractor in accordance with local codes and ordinances. -
Page 2: Installation
LFF115 (Globe) Pressure Reducing Control Valve Standard Components 1—Main Valve (M100 - Single Chamber) 2—Pressure Reducing Control 30-300psi 3—Fixed Orifice X—Isolation Cocks with pre-installed Gage Ports AOS—Adjustable Opening Speed ( " - 4") 11/4 (P/L) Y—Y-Strainer TC—Test Cock / Bleed Valve Lead Free Tubing &... -
Page 3: Setting The Pressure Reducing Control
Valve Servicing Dimensions The following tables detail the recommended minimum valve servicing dimensions. Globe Size 11/4" 11/2" 2" 21/2" 3" 4" 6" 8" 10" 12" 14" 16" 20" 24" A (in) B (in) Angle Size 11/4" 11/2" 2" 21/2" 3" 4"... - Page 4 STEP 2 To ensure proper operation, any trapped air will need to be bled off the valve cover during startup. If your ACV includes a bleed valve, as shown to the right, use a flat head screwdriver to slowly open the valve. If your valve does not include a bleed valve, bleed air by loosening a fitting on the valve or a plug, at the highest point of the valve assembly.
- Page 5 STEP 6 Opening Speed Flow Control Adjustment: The Opening speed flow control allows free flow into the cover and restricted flow out of the cover of the main valve. If recovery of the pressure is slow upon increased downstream demand, turn the adjustment screw OUT, counterclockwise, increasing the rate of opening.
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Page 6: Maintenance Schedule
Automatic Control Valve Maintenance Schedule To ensure peak performance and longevity of your automatic • Annual Maintenance control valve, Watts/Ames recommends following the below – Conduct monthly & quarterly inspections. standard maintenance schedule. – Inspect & clean all strainers. • Monthly Maintenance –... - Page 7 Troubleshooting Guide Issue Possible Cause Corrective Action Notes Main Valve will Closed isolation valves in pilot system. Check isolation valves, not open ensure open. Insufficient supply pressure Check upstream pressure Depending on water source, supply pressure may not be controlled by valve operator.
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Page 8: Valve Disassembley Instructions
Valve Disassembly Instructions Before undertaking valve disassembly, it is recommended to gather the following tools to aid you during the process: • Small & large adjustable wrenches • Screwdriver set • Machinist fine metal file • Fine wire brush • Bench vise •... - Page 9 6. After removing the Stem Nut, the remainder of the Disc & Diaphragm Assembly should disassemble easily. Polish stem guide surfaces with fine emery cloth to remove any mineral deposits and inspect for excessive wear. Remove any mineral build-up from other components with wire brush or by using a Mineral Dissolving Solution.
- Page 10 8. Replace Seat Disc, Diaphragm and Spacer Washers provided in Main Valve repair kit (refer to Table 2 or 3 for correct repair kit part number). Re-assemble in the reverse order of disassembly. Table 2: Full Port Valve (M100/M1100) Repair Kits Size (in) 11/4 11/2...
- Page 11 ACV Assembly Diagram – Series LFM115 Installation: If unit is installed in any orientation other than horizontal (cover up) OR extreme space constraints exist, consult customer service prior to or at the time of order. Item Description Material Pipe Plug...
- Page 12 Limited Warranty: Watts Regulator Co. (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.
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