Watts N9-CD - Manual

Tested and approved in conformance with Standard 1052 of the American
Society of Sanitary Engineers and by all principal cities, states, and areas
having these requirements.
NOTE: Product information is subject to change without notice and
supersedes all previous publications.
Model N9-CD
Backflow Preventer
Installation Instructions
Use on ly with ap pro ved ho se bib bs or h ose fit tin gs hav ing fo ur o r
more full American National Hose (NH) thr eads.
INSTALLA TION: B efo re ins tal lin g, fl ush pi pe lin e to re mov e s cal e
and de bris . T he val ve can be in sta lle d h oriz ont ally or ve rtic ally . In sta ll
with th e a rro w o n v alv e b ody po int ing in th e d ire ctio n o f fl ow . N o.
N9- CD is fu rni she d w ith an in let ga ske t, p ipe do pe or t eflo n ta pe
sho uld no t b e u sed . T o in sta ll, thr ead th e N 9-C D o nto th e h ose
thr ead ou tle t, t he bui lt- in non -re mov abl e lo cki ng fea tur e p rev ent s
removal.
IMPORTANT : T hes e d evi ces ar e n ot i nte nde d fo r in sta lla tio n w her e
emergency or temporary water discharge can cause water dam-
age be cau se the y a re not de sig ned to be sp ill fre e u nde r a ll s erv ice
con diti ons . F or t his re aso n a nd for m ain ten anc e a cce ssi bilit y, t hes e
devices must not be installed inside a wall or any concealed location.
TO DRAIN: Shutof f supply to N9-CD and turn the device counter -
clockwise while applying a gentle pull at the same time. Water will be
observed draining from the inlet connection of the device.
APPLICATIONS: The N9-CD is designed for noncontinuous pr es-
sure, backsiphonage pr otection and health hazard applications such
as chemical dispensers and hose bibbs.
MAINTENANCE: A nnu al i nsp ect ion an d te stin g is re com men ded
since cleaning and checking of all water system safety valves as-
sures maximum life and pr oper product function.
Maximum Pressur e: 125psi
Maximum T emperatur e: 180°F
Field Test Instructions for Model N9-CD
1. Install the device per the installation instructions.
2. Attach a hose and nozzle to the outlet of the device (Fig. 1).
3. Turn on supply and pressurize the device and the hose. Run
sufficient amounts of water through the nozzle to purge the air.
4. Turn off nozzle and then the supply. There must be no leakage
at the device, hose or the nozzle.
5. Turn the device counterclockwise while applying a gentle pull at
the same time (Fig. 2). A spurt of water should be observed at
the vents of the device. If no water is observed, this indicates a
faulty device. (Retighten device by turning clockwise.)
6. Raise the hose and the nozzle to a height of 10 feet (3 meters)
and hold for five (5) minutes (Fig. 3). If there is a continuous
leakage of water at the vents, this indicates a faulty device.
7. If the device passes steps 5 and 6, it should be reported as
functional.
8. If the device fails either step 5 or 6 or both, it must be repaired
or replaced.
IS-N9-CD
Fig. 1 Fig. 2 Fig. 3
IS-N9-CD 0829 EDP#1915163 © Watts, 2008
Limited Warranty: Watts Regulator Co. (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.
Repair Kit consists of diaphragm assembly,
disc assembly and gasket.
Model N9-CD Total Repair Kit:
ORDER NO. KIT NO. SIzE
0886009 RKN9-CD-T 3 ⁄
4
"
10 feet
(3 meters)
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
B a c k f l o w P r e v e n t i o n P r o d u c t s