FEBCO LF866 Lead Free MasterSeries Reduced Pressure Zone Detector Prevention Assembly (Type-II) - Manual (Page 2)

Installation Guidelines
NOTICE
The Flange gasket bolts for the gate valves should be retightened dur-
ing installation as the bolts may have loosened due to storage and
shipping.
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 (133 kPa).
2. These instructions apply to Series 860, LF860, LF866 sizes 2 1 ⁄
2
" to 10"
(65-250mm) only. The valves may be installed only in the orientation/
flow direction as shown.
3. 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 recom-
mendations. These minimums do not apply to removable protective
enclosures. Refer to local codes for actual requirements in your area.
4. 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 disas-
sembly and cleaning.
5. DO NOT LIFT THE ASSEMBLY BY CONNECTING TO THE GATE VALVE
HANDWHEELS OR STEMS.
6. After installation SLOWLY fill the assembly with water and bleed air
from the body using the #2, # 3 and # 4 test cocks. Test the valve
assembly to ensure correct operation.
NOTICE
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 war-
ranty 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. Pressure increases can be caused by thermal expansion or
water hammer. These excessive pressure situations must be eliminated
to protect the valve and system from possible damage.
NOTICE
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 terminat-
ing 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.
Typical Installation
12" Min. (300mm)
refer to local codes
FloW
HORIZONTAL INSTALLATION
oF tHe rP serIes
860, lF860, lF866
(shown with strainer)
HorIZontal InstallatIon oF
tHe rP serIes 860, lF860, lF866
(top View)
(shown with strainer)
18" Min. (450mm)
refer to local codes
Service and Maintenance
General
1. Detailed maintenance manuals are available from your local Febco
representative.
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 the assembly and test to ensure proper
operation.
Check Valve Disassembly
1. Close the outlet shutoff valve, 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 the cover bolts/nuts and lift the cover from the body. The springs
are retained and the cover should be pushed away from the body approx-
imately 1⁄4 inch.
3. Inspect/clean debris from the disc and seat ring. Replace worn or dam-
aged parts as required.
4. Replace the cover, ensure the spring assembly is positioned in the pivot
socket. If necessary, apply FDA approved grease to the O-ring groove in
the body to keep the O-ring in position while installing the cover.
5. Install the bolts and nuts and tighten.
Relief Valve Disassembly
1. Remove the capscrews holding the cover to the relief valve body,
and remove the cover.
2. Remove the diaphragm and pull the internal assembly from the body.
It may be helpful to push the internal assembly with your fingers
through the discharge opening.
3. Inspect for debris, damage or fouling of the seat disc. Clean or
replace parts as required. Reassemble in the reverse order of disas-
sembly.
Test Procedure for Reduced Pressure Zone Assemblies
FEBCO recommends the use of the appropriate test method presented
in the ASSE Series 5000 manual that is consistent with your local codes.
Troubleshooting
ENGLISH INSTRUCTIONS
ProBleM cause solutIon
1. Continuous relief a. Debris on check seating surfaces Disassemble and clean
valve discharge b. Debris on relief valve surfaces Disassemble and clean
2. Intermittent relief a. Inlet pressure fluctuations Eliminate fluctuations
valve discharge b. Downstream pressure surges Eliminate surges
3. Low flows passing a. Mainline check fouled Disassemble and clean
through mainline
valve (RPDA)
Figure 1
12" Min. (300mm)
refer to local codes
Figure 2
6" Min. (150mm)
refer to local codes
Limited Warranty: FEBCO (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.
THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER WARRANTIES, EXPRESS OR
IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE.
The remedy described in the first paragraph of this warranty 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, improper
installation or improper maintenance or alteration of the product.
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. SO FAR AS IS CONSISTENT WITH
APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN
DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.
IS-F-860RP/RPDA 1452 EDP# 980049 © 2014 FEBCO
USA: Tel: (800) 767-1234 • Fax: (800) 788-4491 • FEBCOonline.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • FEBCOonline.ca
Latin America: (52) 81-1001-8600 • Fax: (52) 81-8000-7091 • FEBCOonline.com
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