Reliable LT56 Series Manual

Features
• 28 ft x 10 ft (8.5 m x 3 m) max. coverage area
• UL Listed for Light Hazard occupancies
• Increased spacing and reduced water demand
in corridors compared with traditional extended
coverage sprinklers
Product Description
Model LT56 series sprinklers are UL Listed Specific Application
sprinklers designed for installation in accordance with NFPA
13. The sprinklers produce a spray pattern that is specifically
designed to cover long narrow spaces, such as corridors and
hallways, with fewer sprinklers and less water demand compared
with traditional extended coverage sprinklers.
Model LT56 series sprinklers are quick-response sprinklers for
use in Light Hazard occupancies only. Model LT56 and Model
LT56-300 sprinklers have a glass bulb operating element.
Model LT56L, LT56L-300, and LT56C sprinklers have a fusible
link operating element. Model LT56, LT56-300, LT56L, and
LT56L-300 sprinklers are available with Model FV recessed
escutcheons, Model FP recessed escutcheons, or Model CCP
concealed cover plates. Model LT56C sprinklers require a Model
G5 flat concealed cover plate.
Model G5 Flat Cover Plate
Operating
Sprinkler Model
Element
LT56 Glass Bulb
LT56L Fusible Link
LT56-300 Glass Bulb
LT56L-300 Fusible Link
LT56C Fusible Link
Model CCP Cover Plate
Max. Working
Pressure
psi (bar)
250 (17.2)
250 (17.2)
Pendent, Recessed Pendent or
Conical Concealed Pendent
300 (21)
300 (21)
175 (12)
www.reliablesprinkler.com
Model LT56 Series Special Sprinklers
Designed specifically for corridors and hallway
Important! Reliable fire sprinklers must be handled, stored, and
installed in accordance with the guidelines in Caution Sheet 310
and this bulletin. Failure to follow these instructions may result in
unintended operation or nonoperation of the fire protection system.
Models LT56 & LT56-300
Model FV Escutcheon
Model LT56C Sprinkler
Styles
Flat Concealed
Bulletin 058 August 2024
K5.6 (80 Metric)
UL Listed
Models LT56L & LT56L-300
Model FP Escutcheon
Table A
Sprinkler
Coverage
Identification
Areas
Number (SIN)
Table B RA5814
Table C R5814
Table D RA5914
Table E R5914
Table F RA5994