Sealed retard mechanism (Model WFDT)
assures that the retard is not contaminated
by dust and dirt when the cover is
removed
Visual Switch Activation (Model WFDT)
permits installer to accurately set the
retard even under extremely
noisy conditions
100% Synchronization activates both
alarm panel and local bell simultaneously
Accommodates up to 12 AWG wire
Twelve different flexible plastic paddles fit 1″, 11⁄4″, 11⁄2″ and 2″ tees. Sizes are marked clearly on the paddle for ease of installation.
plastic paddles slip over the actuating lever and are securely fastened with one screw.
Thehandy depth gauge insures the proper installation depth and clearance of thedetector to the tee.
Static Pressure Rating
250 PSI
Triggering Threshold Bandwidth (Flow Rate)
4 – 10 GPM
Maximum Surge
18 FPS
Compatible Tee Fittings
Threaded ferrous and brass tees, copper sweat
tees, CPVC tees, and polybutylene tees
Contact Ratings
Two sets of SPDT (Form C)
10.0 A @ 125/250 VAC
2.5 A @ 24 VDC
Overall Dimensions, Installed
WFDT: 4.5″ H x 3.75″ W x 6.7″ L
(11.4cm H x 9.5cm W x 17cm L)
WFDTNR: 3.75″ H x 3.25″ W x 4.25″ L
(9.5cm H x 8.2cm x W x 10.8cm L)
Conduit Entrances
2 openings for 1⁄2″ conduit
Operating Temperature Range
32°F – 120°F (0°C – 49°C)
Cover Tamper Switch
UL Models: optional P/N 546-7000
ULC/Canadian Models: factory installed
Enclosure
UL Indoor/Outdoor Rated
Shipping Weight
WFDT: 2.6 lbs. (1.2 kg.)
WFDTNR: 1.5 lbs. (0.7 kg.)
Service Use
Automatic Sprinkler: NFPA 13
One or Two Family Dwelling: NFPA 13D
Residential Occupancies up to 4 Stories: NFPA 13R
National Fire Alarm Code: NFPA 72
Warranty
3 years
U.S. Patent Nos.
3,845,259; 4,782,333; 5,213,205