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Watts LFM110-AS Installation Operation & Maintenance

Watts LFM110-AS Installation Operation & Maintenance

Modulating float control valve with solenoid (on-off) feature

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Installation, Operation and Maintenance
Model LFM110-AS / LFM6110-AS
Modulating Float Control Valve with Solenoid (On-Off) Feature
Sizes: 11/4" to 24"
WARNING
!
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.
WARNING
!
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
consistent 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.
WARNING
!
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 .
NOTICE
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.

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Setting the Float Control Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Trouble Shooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Valve Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . 8
ACV Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
IOM-ACV-110-AS_6110-AS
Page

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Summary of Contents for Watts LFM110-AS

  • Page 1: Table Of Contents

    IOM-ACV-110-AS_6110-AS Installation, Operation and Maintenance Model LFM110-AS / LFM6110-AS Modulating Float Control Valve with Solenoid (On-Off) Feature Sizes: 11/4" to 24" WARNING 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.
  • Page 2: Installation

    LFM110-AS (Globe) Modulating Float Control Valve with Solenoid (On-Off) Feature Standard Components 1 – Main Valve (M100 – Single Chamber) 2 – Modulating Float Control 3 – Adjustable Closing Speed 4 – 2-Way Solenoid X – Isolation Cocks Operation The Modulating Float Control Valve with Solenoid (On-Off) Feature...
  • Page 3: Setting The Float Control Valve

    Air is vented through the air bleed valve. Tighten the fitting when liquid begins to vent (See Figure 1). Repeat the process until no air is trapped in the system Figure 1 Position Indicator IOM-ACV-110-AS_6110-AS 2115 EDP#1917117 © 2021 Watts...
  • Page 4 When installing float, set angle similar to Figure 3 by adjusting F10-11 modulating float pilot linkage screw shown in Figure 4. Figure 3 Modulating Float Control Pilot in Tank Linkage Adjustment Screw Figure 4 Modulating Float Control Pilot IOM-ACV-110-AS_6110-AS 2115 EDP#1917117 © 2021 Watts...
  • Page 5: 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 6 Improperly configured closing speed Adjust closing speed control Standard setting for control. to verify functionality, adjust as closing speed control is required. 11/2 - 21/2 turns open from full closed position. Can be adjusted in field. IOM-ACV-110-AS_6110-AS 2115 EDP#1917117 © 2021 Watts...
  • Page 7: Valve Disassembly Instructions

    5. Before removing Stem Nut, examine stem threads for mineral build-up. Remove deposits with a fine wire brush. Extreme care should be taken not to damage the finish on stem guiding surfaces when disassembling. Avoid applying pipe wrenches to top or bottom stem guide surfaces. IOM-ACV-110-AS_6110-AS 2115 EDP#1917117 © 2021 Watts...
  • Page 8 E Dia. 4 Holes Angle or 90 Apart Nut and Washer Channel Iron 2PLCS All-Thread B (Min) C TYP <3 PLCS> Valve Seat Valve Body D TYP <3 PLCS> 120 Apart Figure 6 Figure 5 IOM-ACV-110-AS_6110-AS 2115 EDP#1917117 © 2021 Watts...
  • Page 9 11. Test the integrity of the Seat Seal by following the Seat Seal Test procedure in previous section. 12. Return valve to service by following instructions on the Technical Bulletin matching the valve function. IOM-ACV-110-AS_6110-AS 2115 EDP#1917117 © 2021 Watts...
  • Page 10 ACV Assembly Diagram – Series LFM110-AS NOTICE 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 11 NOTES IOM-ACV-110-AS_6110-AS 2115 EDP#1917117 © 2021 Watts...
  • 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.

This manual is also suitable for:

Lfm6110-as