Watts N9-CD User Manual download pdf

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 only with approved hose bibbs or hose ﬁttings having four or

more full American National Hose (NH) threads.

INSTALLATION: Before installing, ﬂush pipe line to remove scale

and debris. The valve can be installed horizontally or vertically. Install

with the arrow on valve body pointing in the direction of ﬂow. No.

N9-CD is furnished with an inlet gasket, pipe dope or teﬂon tape

should not be used. To install, thread the N9-CD onto the hose

thread outlet, the built-in non-removable locking feature prevents

removal.

IMPORTANT: These devices are not intended for installation where

emergency or temporary water discharge can cause water dam-

age because they are not designed to be spill free under all service

conditions. For this reason and for maintenance accessibility, these

devices must not be installed inside a wall or any concealed location.

TO DRAIN: Shutoff 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 pres-

sure, backsiphonage protection and health hazard applications such

as chemical dispensers and hose bibbs.

MAINTENANCE: Annual inspection and testing is recommended

since cleaning and checking of all water system safety valves as-

sures maximum life and proper product function.

Maximum Pressure: 125psi

Maximum Temperature: 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

⁄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

Backflow Prevention Products

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Model N9-CD 1

Summary of Contents

Page 1 - Model N9-CD

Tested and approved in conformance with Standard 1052 of the American Society of Sanitary Engineers and by all principal cities, states, and areas hav

Page 2

Tested and approved in conformance with Standard 1052 of the American Society of Sanitary Engineers and by all principal cities, states, and areas hav

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Watts N9-CD User Manual

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