FEBCO 805YD DuraCheck In-Line Design Double Check Valve Assemblies - Manual (Page 2)

M A I N T E N A N C E M A N U A L
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 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 tests
cocks in this sequence.
2. Unscrew/Unbolt the cover and remove the spring and disc holder
assembly. NOTE: Unbolt covers on valves 4" (100mm) and larger have
their springs retained and the covers should push away from the body
approximately 1 ⁄
4
" (8mm) as the bolts are loosened. CAUTION: The cov-
ers on valves 3" (80mm) and smaller are spring loaded.
3. Inspect/clean debris from the disc and seat area. Replace worn/dam-
aged parts as required.
4. Reassemble the valve 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
PROBLEM CAUSE SOLUTION
1. Check valve leaking a. Debris on check seating surfaces Disassemble/clean
b. Leaking shutoff valve Disassemble/clean
2. Low flows passing a. Mainline check fouled Disassemble/clean
through mainline valve b. Bypass line plugged Disassemble/clean
(DCDA)
Service and Maintenance
FRT
175 RWWP
4
12" (300mm) Min.
12"
(300mm)
Min.
Horizontal Installation of the DC Series 805YD
(Front View, Shown with Stainer)
Vertical Installation of the DC Series 805YD
(Shown with Stainer)
(Approved vertically only through ASSE)
6" (150mm) Min.
Refer to Local Codes
18" (450mm) Min.
Horizontal Installation of the DC Series 805YD
(Top View, Shown with Stainer)
Flow Flow
Flow
Refer To
Local
Codes
Refer To
Local Codes
Refer To Local Codes
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
Canada: 5435 North Service Rd. • Burlington, ONT. • L7L 5H7 • Tel. (905) 332-4090 • Fax: (905) 332-7068 • www.FEBCOonline.ca
IS-F-805Y/805YD/806YD 0845 EDP# 980003 © FEBCO, 2008
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.
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.