User guide

ManualsBrandsAmes Fire & Waterworks ManualsEquipment4000SS Stainless Steel Reduced Pressure Zone Assemblies

RP/IS-A-4000SS

4000SS

Installation, Maintenance, & Repair

Series 4000SS

Reduced Pressure Zone Assemblies

Sizes: 8" – 10" (200 – 250mm)**

NOTICE

For Australia and New Zealand, line strainers should be installed

between the upstream shutoff valve and the inlet of the backflow

preventer.

NOTICE

The flange gasket bolts for the gate valves should be retightened

during installation as the bolts may have loosened due to storage

and shipping.

Testing

For field testing procedure, refer to Ames installation sheets

IS-A-ATG-1 found on www.amesfirewater.com.

For other repair kits and service parts, refer to our Backflow

Prevention Products Repair Kits & Service Parts price list

PL-A-RP-BPD found on www.amesfirewater.com.

For technical assistance, contact your local Ames representative.

** Metric Dimensions are nominal pipe diameter. This product is

produced with ASME/ANSI flanged end connections or DN flanged

end connections.

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.

You are required to consult the local building and plumbing

codes prior to installation. If the information in this manual

is not consistent with local building or plumbing codes,

the local codes should be followed. Inquire with governing

authorities for additional local requirements.

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. If installed on

a ﬁre suppression system, all mechanical checks, such as alarms

and backﬂow preventers, should be ﬂow tested and inspected in

accordance with NFPA 13 and/or NFPA 25. 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 components helps assure

maximum life and proper product function.

WARNING

www.amesfirewater.com

A Watts Water Technologies Company

WARNING

The installation and maintenance of backflow assemblies

should be performed by a qualified, licensed technician.

Failure to do so may result in a malfunctioning assembly.

Summary of content (8 pages)

PAGE 1
Installation, Maintenance, & Repair Series 4000SS RP/IS-A-4000SS Reduced Pressure Zone Assemblies Sizes: 8" – 10" (200 – 250mm)** 4000SS ! WA R N I N G 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 You are required to consult the local building and plumbing codes prior to installation.
PAGE 2
Installation Guidelines Maintenance Instructions ! WARNING NOTICE Assembly body should not be painted. Removing Cam-Checks Please Read Prior to Installation: 1. Before installing any Ames assembly, Flush the Line thoroughly to remove all debris, chips and other foreign objects. Failure to do so may make the assembly inoperable. 2. The Ames 4000SS Reduced Pressure Backflow Preventers are approved by Asse (American Society of Sanitation Engineers) to be installed in horizontal positions.
PAGE 3
Maintenance Instructions cont. Figure 1 1 7 5 2 4 6 3 Check Studs Check Bolts 9 10 Item # 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
PAGE 4
Maintenance Instructions to Inspect Seat & Clapper on 1st Check ! WARNING To disassemble the first check, you will need the following: Depressurize valve before servicing. • Two pieces of 3/8" all thread rod (approximately 14" long) ! WARNING • Four 3/8" hex nuts Use extreme caution when servicing the first check. • Adjustable crescent wrench To inspect the seat and clean the seat and clapper washer: 1.
PAGE 5
Relief Valve Service Instructions (cont.) Relief Valve Reassembly 1. Thoroughly clean all inside surfaces of the relief valve body. 2. Inspect the relief valve body seat surface located at the top edge of the 3 discharge slots near the top of the body by rubbing the end of the index finger around the entire seat surface; access the seat surface through the slots or the bottom of the body. The seat must be free of nicks. If nicks are discovered, remove the body & install a new relief valve assembly. 3.
PAGE 6
Testing — Reduced Pressure Zone Assemblies Test No.1 Purpose: To test check valve No. 2 for tightness against reverse flow. Requirements: Valve must be tight against reverse flow under all pressure differentials. Slowly open the ‘high’ valve A and the ‘vent’ valve C, and keep the ‘low’ valve B closed. Open test cock #4. Indicated pressure differential will decrease slightly. If pressure differential continues to decrease (until the vent opens) check valve #2 is reported as ‘leaking’.
PAGE 7
Troubleshooting Guide PROBLEM CAUSE SOLUTION A. A ssembly discharges from differential relief valve during no flow condition. Fouled first check Disassemble and clean No. 1check valve B. A ssembly discharges from differential relief valve during a flow condition. C. D ifferential pressure relief valve does not open during test due to leaking outlet gate valve. D.
PAGE 8
For additional information, visit our web site at: www.amesfirewater.com WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.watts.com/prop65 Limited Warranty: Ames Fire & Waterworks (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.