Feb 825ya User manual

IS-F-825YA/RP

INSTALLATION INSTRUCTIONS

Installation Instructions

1. Consult local codes for specific installation requirements and restrictions applicable to

your area. It is recommended that system supply pressure be at least 20psi (138 kPa).

2. These instructions apply to the Series 825YA, sizes 3⁄4"- 2" (20 - 50mm) only. The assem-

bly should be installed in the horizontal position with the relief valve on the side.

3. Approved flow directions indicated above may be achieved by removing the two bolts

at the inlet or outlet adapter flange and rotating the ball valve/adapter assembly into

the desired configuration shown.

4. THE VALVE ASSEMBLY MUST BE INSTALLED WHERE RELIEF VALVE DISCHARGE

WILL BE ACCEPTABLE, OR WHERE RELIEF VALVE DISCHARGE CAN BE COM-

PLETELY DRAINED. The valve assembly must be installed where it is accessible for

periodic testing and maintenance. Clearances shown in the installation views apply to

exterior, interior and pit/vault installations and are only recommendations. These mini-

mums do not apply to removable protective enclosures. Refer to local codes for actual

requirements in your area.

NOTE: The gap drain is not designed to catch the maximum discharge possible from

the relief valve. The installation of FEBCO air gap with the drain line terminating above

a floor drain will handle any normal discharge or nuisance spitting through the relief

valve. However, floor drain size may need to be designed to prevent water damage

caused by a catastrophic failure condition. Do not reduce the size of the drain line

from the air gap fitting.

5. PRIOR TO INSTALLING THE VALVE INTO THE LINE, FLUSH THE SUPPLY LINE OF

ALL FOREIGN MATERIAL. Failure to flush the supply line may cause the check

valves to become fouled and require disassembly and cleaning.

6. After installation SLOWLY fill the assembly with water and bleed air from the body

using the # 3 and # 4 test cocks. Test the valve assembly to ensure correct operation.

NOTE: All assemblies are tested at the factory for proper operation and leakage. If the

valve does not pass the field test, it is most likely due to a fouled check valve. This is

not covered by the factory warranty. The valve cover(s) must be removed and the

check seats inspected and cleaned. Any damage or improper operation caused by

pipeline debris or improper installation/start-up is not included in the factory warranty.

In case of a possible warranty claim, contact your local supplier or FEBCO

Representative. DO NOT REMOVE THE VALVE ASSEMBLY FROM THE PIPELINE.

7. The assembly must be protected from freezing and excessive pressure increases.

Thermal expansion or water hammer can cause pressure increases. These excessive

pressure situations must be eliminated to protect the valve and system from

possible damage.

8. Plastic test cock plugs and tethers are provided (loose in box) for areas that

require them.

Series 825YA

Reduced Pressure Zone Assemblies

Sizes: 3⁄4" – 2" (20 – 50mm)

18" (450mm) Min

12" (300mm) Min

6" (150mm) Min

12" (300mm) Min

(Refer to Local Codes)

Vertical Up Flow In

Vertical Down Flow Out

Horizontal Flow In

Vertical Down Flow Out

Vertical Up Flow In

Horizontal Flow Out

Horizontal Flow In

Horizontal Flow Out

Figure 1 Figure 2 Figure 3 Figure 4

MAINTENANCE MANUAL

Limited Warranty: FEBCO 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 shall constitute the sole and exclusive remedy for breach of warranty, and

the Company shall not be responsible for any incidental, special or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged

if this product does not work properly, other costs resulting from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or

any other circumstances over which the Company has no control. This warranty shall be invalidated by any abuse, misuse, misapplication or improper installation of the product. THIS WARRANTY IS IN

LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Any implied warranties that

are imposed by law are limited in duration to one year.

Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above limitations

may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to determine your rights.

Servicing and Maintenance

General

1. Detailed maintenance manuals are available from your local FEBCO rep-

resentative.

2. Rinse all parts with clean water prior to reassembly.

3. DO NOT USE ANY PIPE DOPE, OIL, GREASE OR SOLVENT ON

ANY PARTS unless instructed to do so.

4. Do not force parts. Parts should fit together freely. Excess force may

cause damage and render the assembly inoperable.

5. Carefully inspect seals and seating surfaces for debris or damage.

6. After servicing, repressurize and test the assembly to ensure proper

operation.

Check Valve Disassembly

1. Unscrew the cover and remove the spring and disc holder assembly.

CAUTION: The covers are spring loaded.

2. Inspect/clean debris from the disc and seat area. Replace worn/dam-

aged parts as required.

3. Apply FDA approved grease to the cover O-ring and reassemble the

valve in the reverse order of disassembly.

Relief Valve Disassembly

1. Close the outlet shutoff valve, and then close the inlet shutoff valve.

Bleed residual pressure from the assembly by opening the #4, #3, and

# 2 test cocks in this sequence.

2. Remove capscrews, diaphragm cover, diaphragm and port bushing of

relief valve and then remove the internal assembly from the body by

pulling straight out.

3. Inspect for debris, damage or fouling of the seat disc. Clean and/or

replace parts as required.

4. Reassemble in the reverse order of disassembly.

Test Procedure

FEBCO recommends the use of the appropriate test method presented in

the ASSE Series 5000 manual that is consistent with your local codes.

Troubleshooting Guide

PROBLEM CAUSE SOLUTION

1. Continuous relief a. Debris on check seating surfaces Disassemble and clean

valve discharge. b. Debris on relief valve seat Disassemble and clean

2. Intermittent relief a. Inlet pressure fluctuations Eliminate fluctuations

valve discharge. b. Downstream pressure surges Eliminate surges

A Division of Watts Water Technologies, Inc. USA: 4381 N. Brawley • Ste. 102 • Fresno, CA • 93722 • Tel. (559) 441-5300 • Fax: (559) 441-5301 • www.FEBCOonline.com