FEBCO 710 Atmospheric Vacuum Breakers - Manual

Installation Instructions
1. Consult local codes for specific 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 FEBCO series 710/715 AVB sizes 1 ⁄
2
”- 2”
(15 - 50mm) only. The valve may be installed only in the orientation/ flow
direction as shown.
3. Clearances shown in the installation view apply to the exterior and inte-
rior valve installations and are only recommendations. 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 supply
line may cause the poppet valve to become fouled and require disassem-
bly and cleaning. The device should be installed where some spillage
is not objectionable, as instantaneous siphon conditions and pressure
surges may cause “spitting”.
5. There may not be any shutoff or control valve downstream of the device.
When threading the device inline, place the wrench only on the hex
ends. Keep pipe dope (sealant) off the interior surfaces of the valve. The
device cannot be under continuous pressure for more than 12 hours in a
24 hour period.
NOTE: All assemblies are tested at the factory for proper operation and
leakage. If the valve leaks, it is most likely due to a fouled poppet 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/
startup 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.
6. 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.
Service and Maintenance
To replace the internal poppet assembly remove the top bonnet by unthread-
ing from the body. Replace the poppet with the repair parts shown below.
Lubricate the top bonnet by applying a thin coating of FDA approved lubricant
on the O-ring and reassemble by threading the top bonnet into the body.
Poppet Repair Kit
Typical Installation
IS-F-710/715AVB
I N S T A L L A T I O N I N S T R U C T I O N S
Series 710, 715
Atmospheric Vacuum Breakers
Sizes: 1 ⁄
2
" – 2" (15 – 50mm)
Size Part Number
in mm
1 ⁄
2
" 15 905046
3 ⁄
4
" 20 905046
1" 25 905549
1 1 ⁄
4
" 32 905550
1 1 ⁄
2
" 40 905551
2" 50 905552
Note: unit cannot have
any shutoff down
stream of aVb
6" (150mm)
minimum above
the highest point
of water
suggested
6" (150mm)
minimum
Water tank
715 1 /
2
”- 3 /
4
” (15-20mm)
710 1”- 2” (25-50mm)
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-710/715AVB 0845 EDP# 980017 © 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.