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G E N E R A L D E S C R I P T I O N
The Model HF-RES Residential Flush Horizontal Sidewall Sprinklers are automatic sprinklers of the compressed fusible
solder type. They are decorative, low profile, flush mount sprinklers. The Frame and Cover of the sprinkler hide the Deflector
and Valve Cap assemblies. (Reference Figure 1) The Model HF-RES is designed for use in residential occupancies such
as homes, apartments, dormitories, and hotels. When aesthetics is the major consideration, the Model HF-RES should
be your first choice.
They are to be used in wet pipe residential sprinkler systems for one- and two-family dwellings and manufactured homes
per NFPA 13D; wet pipe residential sprinkler systems for residential occupancies up to and including four stories in height
per NFPA 13R; or, wet pipe sprinkler systems for the residential portions of any occupancy per NFPA 13.
The Model HF-RES has a 4.2 (60.5 LPM / bar
pressures, enabling smaller pipe sizes and water supply requirements.
The flush design of the Model HF-RES features a separable escutcheon providing 3/16 inch (4.7 mm) of total adjustment.
This adjustment reduces the accuracy to which the fixed pipe drops to the sprinklers must be cut to help assure a perfect
fit installation.
The Model HF-RES has been designed with heat sensitivity and water distribution characteristics proven to help in the
control of residential fires to improve the chance for occupants to escape or be evacuated. However, residential fire
sprinkler systems are not a substitute for intelligent fire safety awareness or fire safety construction required by building
codes.
WA R N I N G S
The Model HF-RES Residential Flush Horizontal Sidewall Sprinklers described herein must be installed and maintained
in compliance with this document, as well as with the applicable standards of the National Fire Protection Association,
in addition to the standards of any authorities having jurisdiction. Failure to do so may impair the integrity of these
devices.
www.senjusprinkler.com
Model HF-RES
K-Factor: 4.2
Residential Flush Horizontal Sidewall Sprinkler
(PTFE gasketed orifice seal design)
) K-factor which provides very low design flow rates at reduced residual
1/2
Page 1 of 7
SIN: SS4423
•
Document No. U028705 • 01-26-2022
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Related Manuals for Senju Sprinkler HF-RES
Summary of Contents for Senju Sprinkler HF-RES
- Page 1 The flush design of the Model HF-RES features a separable escutcheon providing 3/16 inch (4.7 mm) of total adjustment. This adjustment reduces the accuracy to which the fixed pipe drops to the sprinklers must be cut to help assure a perfect fit installation.
- Page 2 Black Painted, Dark Brown Painted, Chrome Plated 8-Sub Deflector (Copper Alloy) 9-Valve Cap (Copper Alloy) • Physical Characteristics: Dezincification resistant Figure 1: Model HF-RES K = 4.2 FIGURE 1 Copper Alloy body and PTFE gasketed orifice seal design. Residential Flush Horizontal Sidewall Sprinkler MODEL K=4.2 RESIDENTIAL FLUSH HORIZONTAL...
- Page 3 Use only the escutcheon provided with the Model HF-RES. The sprinkler must be secured in position by firmly fastening the sprinkler system piping to the structure. If the sprinkler is not properly secured in position, reaction forces resulting from sprinkler operation could alter its orientation and its water distribution pattern.
- Page 4 The distance from the Top of the sub-deflector to the ceiling has to be within 4-6 inches. The Model HF-RES must NOT be used above or below open-gridded type suspended ceilings; beneath soffits or beams exceeding 3 inches in height or joists, or ducts having a height of more than 3 inches located within the sprinkler coverage areas.
- Page 5 6-Heat Collector (Copper) 7-Fusible Metal 8-Sub Deflector (Copper Alloy) Use only HF-H model wrench socket for installation of HF-RES sprinklers. Use of any other wrench or socket is prohibited and 9-Valve Cap (Copper Alloy) may cause damage to the sprinkler.
- Page 6 C A R E & M A I N T E N A N C E Protective Cap The following instructions must be implemented for the maintenance and service of the Model HF-RES. Notes Wet pipe sprinkler systems must be maintained at a minimum temperature of 40°F / 4°C to prevent freezing and bursting of the Socket HF-H pipe and/or sprinklers.
- Page 7 / slippage, or the like, must be replaced. The model HF-RES must only be replaced with Horizontal Sidewall sprinklers which are listed for residential fire protection service and which have the same nominal K-factor, the same coverage area, and the same or lower flow ratings (as indicated under “Hydraulic Design Criteria”).
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