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ManualsBrandsAmes Fire & Waterworks ManualsEquipment4000CIV Cast Iron Reduced Pressure Zone Assemblies

RP/IS-A-4000CIV

Installation, Maintenance, & Repair

Series 4000CIV

Reduced Pressure Zone Assemblies

Sizes: 2

⁄2" – 10" (65-250mm)**

4000CIV

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.

Basic Installation Guidelines

NOTICE

The flange gasket bolts for the gate valves should be re tight ened

during in stal la tion as the bolts may have loos ened due to stor age

and ship ping.

High Capacity Relief Series:

Location and Installation Considerations

1. Backflow preventers must be installed in high-visibility locations in

order to allow for immediate notice of telltale discharge or other

malfunction. This location should also facilitate testing and ser-

vic ing, and protect against freezing and vandalism.

2. Installing a backflow preventer in a pit or vault is not rec om-

mend ed. However, if this becomes necessary, Watts highly

rec om mends that a licensed journeyman tradesperson, who is

recognized by the authority having jurisdiction, be consulted to

ensure that all local codes and required safety provisions are

met. An air gap below the relief port must be maintained so as to

avoid flooding and submersion of the assembly, which may lead

to a cross connection. *Please refer to Figure No. 1 for further

information.

3. Pipe lines should be thoroughly flushed to remove foreign mate-

rial before installing the unit. A strainer should be installed ahead

of backflow preventer to prevent disc from unnecessary fouling.

Install valve in the line with arrow on valve body pointing in the

direction of flow.

CAUTION

Do not install a strainer ahead of the backflow preventer on seldom-

used, emergency water lines (i.e. fire sprinkler lines). The strainer

mesh could potentially become clogged with debris present in the

water and cause water blockage during an emer gen cy.

4. Normal discharge and nuisance spitting are accommodated by

the use of a Watts air gap fitting and a fabricated indirect waste

line. Floor drains of the same size MUST be provided in case of

excessive discharge. *Please refer to Figure No. 1 and Figure

No. 2 for further in for ma tion.

5. When a 4000CIV Series backflow preventer is installed for dead-

end service applications (i.e. boiler feed lines, cooling tower

makeup or other equip ment with periodic flow requirements),

discharge from the relief vent may occur due to water supply

pressure fluctuation during static no-flow con di tions. A check

valve may be required ahead of the backflow preventer. *Please

see “Troubleshooting”, Page 7, prior to installation.

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

NOTICE

For Australia and New Zealand, line strainers should be installed

between the upstream shutoff valve and the inlet of the backflow

preventer.

Testing

For field testing procedure, refer to Ames installation sheets

IS-TK-DP/DL, IS-TK-9A, IS-TK-99E and IS-TK-99D 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.

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.

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

ASME/ANSI flanged end connections or DN flanged end connections.

Summary of content (8 pages)

PAGE 1
Installation, Maintenance, & Repair Series 4000CIV RP/IS-A-4000CIV Reduced Pressure Zone Assemblies Sizes: 21⁄2" – 10" (65-250mm)** 4000CIV ! 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 You are required to consult the local building and plumbing codes prior to installation.
PAGE 2
Basic Installation Guidelines Ames 21/2" – 10" (65-250mm) 4000CIV High Capacity Relief Series: Location and Installation Considerations (cont.) 21⁄2" – 10" (65-250mm) 6. The relief valve module on 21⁄2" – 10" (65-250mm) 4000CIV Series assemblies may be turned to discharge to the opposite side. To do so, unbolt the relief valve and turn the relief valve discharge port to the opposite side. Mount the high pressure hose on the opposite side.
PAGE 3
Installation Instructions Indoors A. Series 4000CIV should be installed in a horizontal and upright position. This positions the relief valve below the first check valve, enabling the zone to drain through the relief valve outlet. The shutoff valve with the test cock is to be mounted on the inlet side of the backflow preventer. The test cock is on the inlet side of the shutoff valve. B. The Series 4000CIV should always be installed in an accessible location to facilitate testing and servicing.
PAGE 4
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 5
Servicing First and Second Checks Sizes: 21⁄2" – 10" (65-250mm) ! CAUTION No special tools required to service 1. Remove the hatch cover bolts. The 4000CIV is designed so that when the bolts are backed off 1⁄2", all the spring load is released from the cover and retained by the check module. Be sure to verify this before removing all the bolts. 2. Lift the check valve module straight out taking care not to hit and damage the seating. 3.
PAGE 6
Servicing the Relief Valve Sizes: 21⁄2" – 10" (65-250mm) ! CAUTION Adapter O-ring 1. Remove the relief valve cover bolts. The 4000CIV is designed so that when the bolts are backed off 1⁄2" all the relief valve spring load is retained by the bottom plug spring module. Be sure to verify this before removing all the bolts. 2. Remove the cover and diaphragm. The relief valve piston assembly can be lifted straight up and out. 3. Replace the wiper seal and piston O-ring and apply grease to the O-ring. 4.
PAGE 7
Troubleshooting Guide Problem A. Valve spits periodically from the vent Cause A.1 Fluctuating supply pressure. A.2 Fluctuating downstream pressure B. V alve drips continually from the vent B.1 Fouled first check B.2 Damage or fouled relief valve seat. B.3 Relief valve piston O-ring not free to move due to pipe scale, dirt or build up of mineral deposits. B.4 Excessive back pressure, freezing, or water hammer has distorted the second check. B.
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.