System-sensor WFDT and WFDTH Manual de usuario descargar pdf

N770-05-00 1 I56-0480-013R

WFDT/WFDTH Vane-type Waterﬂow Detectors

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

www.systemsensor.com

SPECIFICATIONS

Contact Ratings: Two sets of SPDT (Form C); 10 A @ 125/250 VAC ; 2.5 A @ 24 VDC

Triggering Threshold Bandwidth (Flow Rate): 4 – 10 GPM

Static Pressure Rating: 250 PSI (Max.)

Dimensions, Installed: WFDT – 4

⁄16 in H × 3

⁄4 in W × 6

⁄4 in D; WFDTH – 4

⁄16 in H × 3

⁄16 in W × 6

⁄4 in D

Operating Temperature Range: 32°F to 120°F (0°C to 49°C)

Shipping Weight: 2.6 lbs

Enclosure Rating: WFDT – NEMA Type 4, as tested by Underwriters Laboratories, Inc. (UL) (IP56)

WFDTH – Indoor use only, as tested by UL (IP10)

The WFDTH can be installed between 2×4 stud wall construction.

U.S. Patent Number: 5,213,205

IMPORTANT

Please Read Carefully And Save

This instruction manual contains important information about the installation

and operation of waterflow detectors. Purchasers who install waterflow detec-

tors for use by others must leave this manual or a copy of it with the user.

Read all instructions carefully before beginning.

CAUTION

Use vane-type waterflow detectors in wet-pipe systems only. DO NOT USE IN

DRY-PIPE, DELUGE, OR PRE-ACTION SYSTEMS. The sudden inrush of water

in such systems may break the vane off or damage the mechanism. Do not use

in potentially explosive atmospheres. Do not leave unused wires exposed.

PRINCIPLES OF OPERATION

Vane-type waterflow detectors mount to water filled pipes in sprinkler sys-

tems. Water flow in the pipe deflects a vane. Deflection of the vane produces

a switched output, usually after a specified delay.

All WFDTs have a pneumatically controlled mechanical delay mechanism. De-

lays are noncumulative; they reset if the flow of water stops before the entire

delay has elapsed. All detectors will activate on a sustained flow of water

greater than 10 gallons per minute (gpm) but will not activate if the flow rate

is less than 4 gpm.

COMPATIBLE PIPE TEES/RISERS

The WFDT and WFDTH fit 1- to 1

⁄2-inch NPT threaded ferrous and brass,

1- to 2-inch sweat brass, 1

⁄2-inch polybutylene plastic and 1-inch pvc plastic

tees having a 1-inch threaded NPT branch (see Figure 1 and chart for recom-

mended tee depths). For 2-inch cast and malleable threaded tees use 2-inch

paddle (p02-0023-000) provided. The WFDT and WFDTH also fits 1-, 1

/2-,

and 2-inch Reliable riser manifolds when used with paddle tree P02-0103-000

(purchased seperately). Use 1-inch CPVC paddle when installing detector on a

NIBCO 1-inch slip x 1-inch slip x 1-inch FPT.

APPROXIMATE TEE DEPTH REQUIREMENTS (SEE FIGURE 1)

Tee Depth Threaded Sweat Poly B CPVC

CPVC/Spears/

Victaulic

CPVC/Tyco

1 × 1 × 1˝ 2

/8˝ 1

/4˝ N/A 2

/4˝ 2

/32˝ 2

/16˝

/4 × 1

/4 × 1˝ 2

/2˝ 2

/6˝ N/A N/A N/A N/A

/2 × 1

/2 × 1˝ 2

/4˝ 2

/2˝ N/A N/A N/A

2 × 2 × 1˝ 3

/4˝ 2

/4˝ N/A N/A N/A N/A

FIGURE 1. MOUNTING DIMENSIONS:

INSTALLATION GAGE

END OF PADDLE TREE MUST

FIT BETWEEN TOP OF TEE

AND BOTTOM OF FLANGE

TEE FITTING

PLASTIC VANE

TEE DEPTH

REFER TO TEE

DEPTH TABLE

TEE

ADAPTER

(WFDT)

(WFDTH)

3˝

W0126-00

INSTALLATION GUIDELINES

Before installing any waterflow alarm device, be thoroughly familiar with:

NFPA 72: National Fire Alarm Code

NFPA 13: Installation of Sprinkler Systems

NFPA 25: Inspection, Testing, and Maintenance of Water-based Fire Protec-

tion Systems, Section 5.3.3.2

NFPA 13D: Standard for 1 and 2 Family Dwellings and Manufactured Homes

NFPA 13R: Standard for Multi-family Dwellings

Also, follow other applicable NFPA standards, local codes and the require-

ments of the authority having jurisdiction.

I56-0480-013R

1 2 3 4

Indice de contenidos

Pagina 1

N770-05-00 1 I56-0480-013RWFDT/WFDTH Vane-type Waterﬂow DetectorsINSTALLATION AND MAINTENANCE INSTRUCTIONS3825 Ohio Avenue, St. Charles, Illinois 60

Pagina 2 - W0127-00

N770-05-00 2 I56-0480-013RFailure to follow these directions may result in failure of the device to report a waterflow condition. System Sensor is n

Pagina 3 - W0112-02

N770-05-00 3 I56-0480-013RFIGURE 3. FIELD WIRING:++––SSM24-XSSV120-XNOTE: COMMON AND B-NO CONNECTIONS WILL CLOSE WHEN VANE IS DEFLECTED, I.E., WHEN

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